ViX250IM
ViX500IM
Stepper Drives
User Guide
Part No: 1600.324.01b February, 2004 (For software revision 2.0 onwards)
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IMPORTANT INFORMATION FOR USERS
Installation and Operation of Motion Control Equipment
It is important that motion control equipment is installed and operated in such a way that all applicable safety
requirements are met. It is your responsibility as an installer to ensure that you identify the relevant safety
standards and comply with them; failure to do so may result in damage to equipment and personal injury. In
particular, you should study the contents of this user guide carefully before installing or operating the
equipment.
The installation, set-up, test and maintenance procedures given in this User Guide should only be carried
out by competent personnel trained in the installation of electronic equipment. Such personnel should be
aware of the potential electrical and mechanical hazards associated with mains-powered motion control
equipment - please see the safety warning below. The individual or group having overall responsibility for
this equipment must ensure that operators are adequately trained.
Under no circumstances will the suppliers of the equipment be liable for any incidental, consequential or
special damages of any kind whatsoever, including but not limited to lost profits arising from or in any way
connected with the use of the equipment or this user guide.
SAFETY WARNING
High-performance motion control equipment is capable of producing rapid movement and very high forces.
Unexpected motion may occur especially during the development of controller programs. KEEP WELL
CLEAR of any machinery driven by stepper or servo motors. Never touch any part of the equipment while it
is in operation.
This product is sold as a motion control component to be installed in a complete system using good
engineering practice. Care must be taken to ensure that the product is installed and used in a safe manner
according to local safety laws and regulations. In particular, the product must be enclosed such that no part
is accessible while power may be applied.
This and other information from Parker-Hannifin Corporation, its subsidiaries and authorised distributors
provides product or system options for further investigation by users having technical expertise. Before you
select or use any product or system, it is important that you analyse all aspects of your application and
review the information concerning the product in the current product catalogue. The user, through its own
analysis and testing, is solely responsible for making the final selection of the system and components and
assuring that all performance, safety and warning requirements of the application are met.
If the equipment is used in any manner that does not conform to the instructions given in this user guide,
then the protection provided by the equipment may be impaired.
The information in this user guide, including any apparatus, methods, techniques, and concepts described
herein, are the proprietary property of Parker Electromechanical Division or its licensors, and may not be
copied, disclosed, or used for any purpose not expressly authorised by the owner thereof.
Since Parker Electromechanical constantly strives to improve all of its products, we reserve the right to
modify equipment and user guides without prior notice. No part of this user guide may be reproduced in any
form without the prior consent of Parker Electromechanical Division.
© Electromechanical Division of Parker Hannifin plc, 2003
– All Rights Reserved –
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Product Type:
ViX250IM, ViX500IM
The above product is in compliance with the requirements of directives
• 73/23/EEC
• 93/68/EEC
• 89/336/EEC
Low Voltage Directive
CE Marking Directive
Electromagnetic Compatibility Directive
Provided the installation requirements described in this user guide are met, and there are no special requirements of
the installation and operating environment so that the application may be considered typical, the ViX servo drive series
installation will conform to the protection requirements of Council Directive 89/336/EEC as amended by Directive
92/31/EEC on the approximation of the laws of the Member States relating to Electromagnetic Compatibility when
operated and maintained as intended.
In assessing the overall compliance of an installation consideration must also be given to the effects of mains
harmonics and flicker when interfacing the total supply system to the public low voltage supply system.
In accordance with IEC 61800-3:1997 (Adjustable speed electrical power drive systems) this product is of the
restricted sales distribution class which meets the needs of an industrial environment when installed as directed.
However, further measures may need to be taken for use of the product in a domestic environment.
Compliance is demonstrated by the application of the following standards:
BS EN 61800-3
(1997) including
Amendment A11
Adjustable speed electrical power drive systems
Part 3. EMC product standard including specific test methods
BS EN 61000-6-2
(2001)
Electromagnetic compatibility – Part 6-2: Generic standards
Immunity for industrial environments
BS EN 61000-6-4
(2001)
Electromagnetic compatibility – Part 6-4: Generic standards –
Emission standard for industrial environments
BS EN 61010-1
(1993) including
Amendment A2
Safety requirements for electrical equipment for measurement,
control, and laboratory use. Part 1. General requirements
WARNING – Risk of damage and/or personal injury
The ViX drives described in this user guide contain no user-serviceable parts.
Attempting to open the case of any unit, or to replace any internal component, may
result in damage to the unit and/or personal injury. This may also void the
warranty.
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Contact Addresses
For engineering
assistance in Europe:
Parker Hannifin plc
For engineering
assistance in Germany
Parker Hannifin GmbH
Electromechanical
Electromechanical
Automation
Automation
21 Balena Close
Poole, Dorset
P. O. Box: 77607-1720
Robert-Bosch-Str. 22
England, BH17 7DX
D-77656 Offenburg, Germany
Tel: +49 (0)781 509-0
Fax: +49 (0)781 509-176
e-mail: [email protected]
e-mail: [email protected]
Website: www.parker-eme.com
Tel: +44 (0)1202-699000
Fax: +44 (0)1202-695750
e-mail: [email protected]
e-mail: [email protected]
Website: www.parker-eme.com
For engineering
For engineering
assistance in Italy
Parker Hannifin SpA
Electromechanical Automation
20092 Cinisello Balsamo
Milan,
assistance in the U.S.:
Parker Hannifin Corporation
Electromechanical Automation
5500 Business Park Drive, Suite D
Rohnert Park
Italy Via Gounod, 1
CA 94928
USA
Tel: +39 02 6601 2478
Fax: +39 02 6601 2808
Tel: (800) 358-9070
Fax: (707) 584-3793
FaxBack System: (800) 936-6939
e-mail: emn_support@parker.com
Website: www.parkermotion.com
e-mail: [email protected]
Website: www.parker-eme.com
Symbols used, have the following meanings:
Caution -
Refer to the
accompanying documentation
Protective conductor terminal
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CONTENTS
i
Contents
1. Introduction.............................................................................................................1
2. Mechanical Installation...........................................................................................5
3. Electrical Installation...............................................................................................9
4. Control of ViX Drives..............................................................................................45
5. EASI-V Software ....................................................................................................95
6. Command Reference .............................................................................................115
7. ViX Maintenance and Troubleshooting ..................................................................185
8. Hardware Reference ..............................................................................................195
Appendix A/B..............................................................................................................199
Index............................................................................................................................203
The ViX250IM/500IM Microstepper Indexer Drive is UL-Recognised under file E194158.
This means it may be incorporated into end-user products that may be eligible for UL
Listing, Classification or Certification.
User Guide Issue Change Summary
This user guide, version 1600.324.01, is the first version of the ViX250IM/ViX500IM
Microstepper Indexer Drive.
When a user guide is updated, the new or changed text is differentiated with a change
bar in the outside margin (this paragraph is an example). If an entire section is changed,
the change bar is located on the outside margin of the section title. For the latest (most
up-to-date) changes required by this issue of user guide see the Latest Changes Sheet
over the page.
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ii
VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Latest Changes Sheet
This page lists important changes occurring immediately before publication or between
issue updates:
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1. INTRODUCTION
1
1. Introduction
Product Description
Available in two current ratings, these microstepper indexer drives employ an optimised
digital field oriented current loop to provide low speed smoothness coupled with high speed
torque. Advanced digital techniques result in reduced settling time and reduced mid speed
instability when compared with similar competitive drive types.
The common use of EASI-V programming language and similar supply requirements make
this drive ideal for mixed technology applications when used with the ViX digital servo.
Figure 1-1. ViX250/ViX500 Microstepper Indexer Drive
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2
VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Product Variants
Digital microstepper indexer drives are available in two current ratings with two interface
options. Table 1-1 lists the possible combinations:
Product Code
Description
ViX500IM
5.6A RMS (8A peak) microstepper indexer drive with an
RS232 control interface
ViX250IM
ViX500CM
ViX250CM
2.8A RMS (4A peak) microstepper indexer drive with an
RS232 control interface
5.6A RMS (8A peak) microstepper indexer drive with
Canbus/RS485 interface
2.8A RMS (4A peak) microstepper indexer drive with
Canbus/RS485 interface
Table 1-1. ViX250/ViX500 Microstepper Indexer Drive Options
Note: RS485 serial communication is only included in the CANopen version of the drive.
Product Features
Protection Circuits
Function Indicators
Motor short circuits, phase to phase,
phase to ground
Drive Status/Feedback Fault (HV/FB)
Drive Fault (DF)
Over-voltage trip
Comms. Status (CS)
Under-voltage trip
Drive/motor Over-temperature
24V reverse supply protection
Outputs and Inputs
3 digital outputs
5 digital inputs
1 analogue input
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1. INTRODUCTION
3
Fit Kits
A fit kit is available for ViXIM drives:
VIX-KIT
Part Number Quantity Description
1650.937.01
1
Information
sheet
5004.023
5006.211
0405.811
1
1
1
Plastic bag
Product label
10-way Flange
plug strip
0405.961
0405.962
0405.963
0409.530
0313.020
4005.218
4216.101
4216.102
4216.103
1
2
1
4
1
1
1
1
1
9-way D-type
plug
15-way HD
D-type plug
15-way HD
D-type socket
9-way D-type
cover
H8FE1115NC
ferrite sleeve
3:1 heatshrink
19mm diam.
Closed P-clip
9mm ID
Closed P-clip
10.7mm ID
Closed P-clip
12.3mm ID
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4
VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Further Information
This user guide contains all the necessary information for the effective use of this drive.
However, to gain a more in-depth understanding of drive applications and motion control,
consider attending one of our world-wide Customer Specific Training Workshops.
Examples of previous courses that have proved to be of benefit include:
Use and programming of the DIN rail H & L series drives
PDFX training
Using the 6K controller
EASI Tools programming
Mechanical product training for ET/ER, XR and HPLA
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2. MECHANICAL INSTALLATION
5
2. Mechanical Installation
Installation Requirements
Environment
ViX drives operate in a temperature range of 0° to 40°C with natural convection, or 50°C
Max with forced-air cooling (see Hardware Reference), at normal levels of humidity (5-95%
non-condensing). The drives can tolerate atmospheric pollution degree 2, which means only
dry, non-conductive pollution is acceptable.
Drive Cooling
Cooling of all drive types is by natural convection up to 40°C. To assist cooling, drives
should be installed vertically in an area where there is at least a 50mm (minimum) air gap
above and below the package and a 10mm (minimum) gap either side. Avoid mounting
heat-producing equipment directly below a drive.
Installers must ensure that the air temperature entering the drive or rising up to the drive is
within the ambient temperature restrictions. Under normal use the air temperature leaving
the drive and heatsink may be 25°C above ambient.
In the final installation, check that the ambient temperature specification of 40°C Max
(without forced air cooling) is not exceeded directly below the top-most drives and that any
circulating air flow is not being blocked from reaching the drives. For cabinet cooling
calculations, allow 20W per drive. For DIN rail mounting, see the thermal limitations
statement in Drive Mounting Options.
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6
VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Drive Dimensions
ViX250 and ViX500 drives share the same dimensions, shown in Figure 2-1.
98.5 (with connector)
3
21
HVSTFB
X1
X3
X4
X2
X5
88,1
4,5
42
Figure 2-1. ViX250 & ViX500 Dimensions
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2. MECHANICAL INSTALLATION
7
Drive Mounting Options
If you require a DIN-Rail mounting ViX drive use the optional DIN-Rail clip adapter bracket
shown in Figure 2-2.
16mm
Viewed from the back
of the DIN rail
Allow 10mm
for release
Figure 2-2. DIN-Rail Adapter Bracket
Remove the panel mounting plate from the back of the drive and attach the bracket to the
back of the drive using the screws provided. The drive and bracket can now be fixed to a
DIN rail by hooking the top of the bracket over the top of the DIN rail and gently pushing the
drive forward to engage the lower section of the bracket. Remove the bracket by inserting a
flat bladed screwdriver into the release slot to pull down the bottom of the bracket, releasing
it from the DIN rail.
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8
VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Motor Mounting Mechanical Considerations
Keep motors securely fixed in position at all times. Do not test a motor/drive combination
without first securing the motor – see the Safety Warning at the front of this user guide.
CAUTION – risk of equipment damage
Do not back drive the motor, that is use the motor in an application that causes
mechanical rotation of the motor shaft in a manner uncontrolled by the drive.
Back driving the motor at high speed may damage the drive.
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3. ELECTRICAL INSTALLATION
9
3. Electrical Installation
Installation Safety Requirements
ViX stepper drives meet the requirements of both the European LVD & EMC directives when
installed according to the instructions given within this section. It is recommended the drive
be installed in an enclosure to protect it from atmospheric contaminants and to prevent
operator access while it has power applied. Metal equipment cabinets are ideally suited for
housing the equipment since they can provide operator protection, EMC screening, and can
be fitted with interlocks arranged to remove all hazardous motor and drive power when the
cabinet door is opened. Do not arrange interlocks to open circuit the motor phase
connections while the system is still powered, as this could cause damage to the drive.
Precautions
During installation, take the normal precautions against damage caused by electrostatic
discharges. Wear earth wrist straps. A switch or circuit breaker must be included in the
installation, which must be clearly marked as the disconnecting device and should be within
easy reach of the machine operator.
Cabinet Installation
To produce an EMC and LVD compliant installation we recommend that drives are mounted
within a steel equipment cabinet. This form of enclosure is not essential to achieving EMC
compliance, but does offer the benefits of operator protection and reduces the contamination
of the equipment from industrial processes.
A steel equipment cabinet will screen radiated emissions provided all panels are bonded to a
central earth point. Separate earth circuits are commonly used within equipment cabinets to
minimise the interaction between independent circuits. A circuit switching large currents and
sharing a common earth return with another low level signal circuit could conduct electrical
noise into the low level circuit, thereby possibly interfering with its operation. For this reason
so called ‘dirty earth’ and ‘clean earth’ circuits may be formed within the same cabinet, but all
such circuits will eventually need to be returned to the cabinet’s main star earth point.
Mount the individual drives and EMC filter on a metal earth plane. The earth plane will have
its own individual star point earth which should be hard wired (using an insulated copper
conductor) back to the cabinet’s ‘clean earth’ connection point.
LVD - Low voltage directive
EMC – Electro Magnetic Compatibility directive
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10 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Power Supply Connections
Power drives from a DC supply derived from an isolating transformer or a DC power supply
(See Power Supply Options later in this section).
Note: Pin 10 is at the top of the connector X1 and pin 1 at the bottom.
Power & motor X1
10-way
connector
+HV
-HV
10
9
8
PE
+24V DC
7
0V (GND 24v DC)
GND
6
5
4
3
2
1
MOTOR
CONNECTIONS
Figure 3-1. X1 Power Connections
WARNING – Possible drive damage
If you use Parker XL Series stepper drives, do not attempt to use any power wiring
harness taken from an XL drive. Although the same mating connector is used for
both an XL and a ViX, the ViX wiring is the reverse of the XL and the wrong wiring
connection will damage the drive.
Mating connector type is: Wieland 8213B/10 F OB, Part number 25.323.4053.0 (Parker part
number 0405.811).
Supply Requirements
Power the ViX drives from DC supplies as specified below:
Volts
Drive Type
DC Supply Voltage
between +HV and -HV
ViX500
ViX250
48V to 80V (recommended)
24V to 80V
Table 3-1. Drive Supply Voltages
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3. ELECTRICAL INSTALLATION 11
WARNING
The drive HV supply input is not reverse polarity protected.
Reverse polarity connections will damage the drive.
Current and Capacitance
A supply must have a minimum amount of capacitance to support a drive at peak power
draw.
Drive Type
ViX500
DC Supply Current
5.6A RMS
2.8A RMS
Supply Capacitance
6600µF
3300µF
ViX250
Table 3-2. Drive Supply Currents
+24V Requirements
Both drive types require a +24V controller and logic supply. The supply may also be
required for an encoder and a Fieldbus Expansion Module (FEM).
Absolute voltage range
Nominal drive current
20 to 27V
250mA (excluding encoder, & FEM)
Encoder supply loading 150mA (if required)
FEM current
50mA
Safety Earth Requirements
Earth the drive using the earth pin on X1 (pin 8).
Power Supply Options
A set of torque curves (Figure 3-2) for various motor/drive combinations can be used for
calculating an applications likely power requirements.
Higher torque/current requirements will need to use the ViX500 drive and a high current
linear supply, such as the PL1100. Further power supply information is given in Appendix A.
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12 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
ViX250 with SY561
ViX250 with SY562
Nm
0.4
Nm
0.8
0.3
0.2
0.6
0.4
0.1
0
0.2
0
0
0
0
10
10
10
20
30
40
40
40
50
50
50
0
0
0
10
10
10
20
30
40
40
40
50
50
50
Speed, revs/sec
Speed, revs/sec
ViX500 with SY563
ViX250 with SY871
Nm
1.5
Nm
1.5
1.0
1.0
0.5
0
0.5
0
20
30
20
30
Speed, revs/sec
Speed, revs/sec
ViX500 with SY872
ViX500 with SY873
Nm
3.0
Nm
4.0
3.0
2.0
2.0
1.0
0
1.0
0
20
30
20
30
Speed, revs/sec
Speed, revs/sec
Figure 3-2. Stepper Drive Torque/Speed Data
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3. ELECTRICAL INSTALLATION 13
XL-PSU Power Supply
The XL-PSU is a 250W, power factor corrected, switched mode power supply. Designed for
direct operation from world wide single phase AC input voltages, the supply is capable of
powering up to two ViX250 drives (see note 1) without the need for an EMC mains input filter
(see note 2). The use of the XL-PSU offers the following benefits:
•
•
•
•
Auto-adapts to supplies between 95 and 264V AC
No external EMC filter required
Compact size
Built-in +24V DC supply
Note 1: Check the application’s power requirements from the torque/speed curve of the
motor used.
Note 2: For drives with up to 30 metre motor leads.
For full installation instructions see the XL Power Supply leaflet 1600.300.XX.
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14 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
XL-PSU Supply/Drive Connections
When used to supply up to two drives the power supply can be wired as shown in Figure 3-3.
Mininum spacing
between drives & PSU
10 mm
HV STFB
X1
1
10
+DC (80V)
X3
-DC
EXT. BRAKING RES.
If the supply is positioned
this side of the drive
avoid blocking access to
D-type X3
+24V
X4
X5
GND
10
1
P1
P2 mating socket
MAINS
INPUT
N
X2
L
The XL_PSU must
be securely earthed
110V-230V~
50/60 Hz
250VA
P2
L N
EARTH (GND.)
XL
Power
Supply
Unit
HV STATUS
BRAKING RES.
24V STATUS
Figure 3-3. XL Power Supply and Drive Connections
Note: A kit of five connecting links is available, called ‘XL-connect’. You will need one kit for
every drive.
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3. ELECTRICAL INSTALLATION 15
XL-PSU Mounting Information
Mount the supply vertically, near the drives it will supply. Both the top 4.5mm diameter fixing
hole and the bottom two 4.5mm width fixing slots should be used.
Allow a minimum free space of 50mm both below and above its case and 10mm free space
on both sides.
Do not mount the supply above or close to other products that generate a significant amount
of heat by radiation or convection.
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16 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
PL1100 Power Supply
General Description
The PL1100 is a linear power supply with a rated output of 1120W (80V/14A) for use with
ViX and XL series drives. The supply requires a suitably rated transformer supplying 50V
AC RMS for the HV and 20V AC RMS for the +24V DC. The use of the PL1100 offers the
following benefits:
•
•
•
•
Provides 80V HV and +24V DC output
Single or three phase operation
Built-in power dump switch
Integral fusing
Figure 3-4 shows the PL1100 output wiring for two ViX drives. This illustrates how to route
the main HV supply separately to each drive. The lower current requirements of the +24V
logic/brake supply can allow the wiring to be linked between drives.
For full installation instructions see the PL1100 Power Supply leaflet 1600.323.XX.
HV STFB
X3
HV STFB
X3
+24V
HV
X1
10
X1
10
CAUTION
Risk of electric shock.
High voltage remains on terminals
after power is removed.
Allow 5 minutes for capacitors
to discharge.
REGEN
X1
MOTOR HV OUT
MOTOR 0V.
EXT. BRAKING RES.
PE
X4
X5
X4
X5
+24V DC OUT
1
1
0V
20V AC IN
20V AC IN
PL1100
Power Supply
L3
LINK
FOR
X2
X2
SINGLE
55V
AC IN
1/3 PH.
PHASE
L2
L1
X2
10 mm MIN
Figure 3-4. PL1100 Power Supply and Drive Connections
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3. ELECTRICAL INSTALLATION 17
EMC Installation
These EMC installation recommendations are based on the expertise acquired during the
development of compliant applications, which Parker believes are typical of the way, a drive
or drives may be used. Provided you have no special installation requirements or untypical
operating environment requirements, ViX drives will conform to current EMC Directives, as
defined at the front of this user guide.
General Requirements
ViX mounted drives, unless used with an XL-PSU, will require an EMC supply filter to meet
EMC installation compliance requirements. Mount the drive on a conductive panel which is
shared with the EMC filters. If the panel has a paint finish, it will be necessary to remove the
paint in certain areas to ensure filters and drive make a good large-area metal to metal
contact between filter case and panel.
Mount filters close to the drive and keep the supply wiring as short as practical. Attempt to
layout the wiring in a way that minimises cross coupling between filtered and non-filtered
conductors. This means avoiding running wires from the output of a filter close to those
connected to its input. Where you wish to minimise the cross coupling between wires avoid
running them side-by-side one another, if they must cross, cross them at 90° to each other.
Keep wiring supported and close to cabinet metalwork.
Recommended EMC filter types are CORCOM 6FC10 for loads up to 6A and 3VK1 for the
+24V supply up to 3A. Multi-axis systems may require higher current rated filters.
+24V Supply Connections
ViX drives not using an XL-PSU will require a logic supply of +24V DC at 250mA (nominal)
per drive. The +24V powers the controller and I/O circuits. Keeping the +24V independent
of the drive’s internal high voltage bus supply allows the option of keeping the I/O and
controller active when no main supply is present.
Connect the +24V supply to X1 pin7 and the return to X1 pin6, the total wire length, from
supply to drive, must not exceed 10m.
Connect the +24V supply 0V line to system earth (0V) at some convenient point before the
EMC filter input, as shown in the recommended EMC layout diagram, Figure 3-5.
The 24V supply to each drive should be fitted with a time-delay fuse, rated at 3A. Note: The
+24V supply used must meet the voltage requirement specification of +24V DC +10% -15%,
ripple <1V p-p.
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18 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
HV STFB
X1
10
X3
CABINET
BACK
PLANE
Lead length
restriction
(less than 1 metre)
X4
1
X2
X5
DC Supply
Star earth point
to the metal
backplane
Transformer
-
+
Located in
the base of
the cabinet
LOAD
AC Supply
CORCOM
DC 24V Supply
3VK1
6FC10
LINE
Power wiring conduit
Figure 3-5. ViX EMC Installation
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3. ELECTRICAL INSTALLATION 19
Motor Connections to the Drive
The recommended wire size for ViX250IM/500IM motor cables, of length less than 20m, is
1mm2. For motor cable lengths greater than 20m (up to a maximum of 50m) use a wire size
of 2.5mm2. Use a cable containing five conductors plus the braided screen (such as Lapp
34805), the green wire being used to provide an earth return to the drive. Termination at the
motor must be made using a 360° bond to the motor body, and this may be achieved by
using a suitable clamp. Many stepper motors are designed to accommodate an appropriate
terminal gland which can be used for this purpose.
At the drive end of the cable, a 360° connection to the screen should be made using the
P-clip provided beneath the motor connector. The P-clip needs to be firmly clamped to the
copper braid. If the connection appears loose, fold the braid back on itself to increase the
amount of braid under the clip and re-tighten.
Custom cables will require the cable insulation to be removed to expose the braided screen.
If you are using a motor cable with 2.5mm2 conductors the size of the P-clip will need to be
9mm to accommodate the increased cable diameter. A ferrite absorber, with a specification
matching that of the Chomerics H8FE-1115-NC, is also required to be positioned on the
motor cable using heat shrink sleeving or cable ties. The position of the absorber should be
within 150mm of the drive. Always secure the cable using the P-clip, as shown. Do not rely
upon the connector alone holding the motor cable in place. Avoid stress on the X1
connector by hanging cables, as this may lead to connector over-heating.
Make a 360° connection to the screen using one of the stainless steel or brass P-clips
supplied within the fit kit.
Size
Parker part number
4216.101
9mm ID
10.7mm ID
12.3mm ID
4216.102
4216.103
Table 3-3. P Clip sizes
Three different size ‘P’ clips allow the use of a variety of motor power cables from different
manufactures.
There must be no break in the 360° coverage that the screen provides around the cable
conductors. If a connector must be used it should retain the 360° coverage, possibly by the
use of an additional metallic casing where it passes through the bulkhead of the enclosure.
The cable screen must not be bonded to the cabinet at the point of entry. Its function is to
return high-frequency chopping current back to the drive. This may require mounting the
connector on a sub-panel insulated from the main cabinet, or using a connector having an
internal screen which is insulated from the connector housing. Within the cabinet itself, all
the motor cables should lie in the same trunking as far as possible. They must be kept
separate from any low-level control signal cables. This applies particularly where the control
cables are unscreened and run close to the drive.
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20 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Note that the motor cable routing within the equipment cabinet should be kept at least
300mm away from I/O cables carrying control signals.
All motor connections must be made using a high quality braided-screen cable. Cables
using a metallised plastic bandage for an earth screen are unsuitable and in fact provide
very little screening. Care must be taken when terminating the cable screen, the screen
itself is comparatively fragile; bending it round a tight radius can seriously affect the
screening performance. The selected cable must have a temperature rating which is
adequate for the expected operating temperature of the motor case.
Motor Cables
Motor cables may be ordered using the part numbers listed in Table 3-4.
Product code/Part
number
Length (metres)
STC20-0300
STC20-0500
STC20-1500
3
5
15
Table 3-4. Motor Cables
Motor Phase Contactors
We recommend that motor phase contactors are not used within the motor power cables. As
an alternative, make use of the drive’s power stage ‘enable’ control signal.
Ferrite absorber specifications
The absorbers described in these installation instructions use a low-grade ferrite material
that has high losses at radio frequencies. They therefore act like a high impedance in this
waveband. Produced by Parker Chomerics, the recommended component is suitable for use
with cable having an outside diameter up to 10mm. The specification is as follows:
Chomerics part number H8FE-1115-NC (Parker part number 0313.020)
Outside diameter 17.5mm
Inside diameter 10.7mm
Length 28.5mm
Impedance at 25MHz 80 ohm
Impedance at 100MHz 120ohm
Curie temperature 130°C (the device should not be operated near this temperature)
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3. ELECTRICAL INSTALLATION 21
Motor Selection
Usually optimum performance will be obtained when the current rating of the motor is
between 1 and 1.5 times the drive rating. Drives can be de-rated to accommodate motors
with lower current ratings (using variable MC within the MOTOR command), however the
high speed torque will be reduced.
Do not use a drive setting which gives an output current greater than the motor rating.
With 4 lead motors the bipolar rating is quoted and this should match the criteria stated
above.
With 8 lead motors the bipolar rating of the motor, which is normally quoted, refers to a
parallel winding connection. With the windings connected in series the current rating of the
motor connection will be 50% that of the bipolar rating, and the motor will give improved low-
speed torque, but reduced high-speed torque.
The ViX250IM/ViX500IM will drive motors having an inductance as low as 0.5mH and as
high as 20mH, but the recommended motor inductance range is between 0.8mH and 10mH.
Performance of the ViX250/ViX500IM is optimised for the following motor types, listed in
Table 3-5.
Motor Type
Motor Rated
Current in
Amps*
Motor
Inductance
in mH per
phase*
ViX500IM ViX250IM
✔
SY561
4.2
4.2
6.5
4.2
6.5
8.4
8.0
1.0
2.6
1.2
1.6
1.5
1.7
2.4
✔
✔
✔
✔
✔
✔
✔
SY562
SY563
SY871
SY872
SY873
✔
SY1072
*(parallel connection)
Table 3-5. SY Optimum Motor Types
Motor Voltage Ratings
Motors with a withstand voltage rating from phase to earth of 1000V AC should be used. An
insulation withstand rating of 500V AC is acceptable if an isolating transformer with earthed
screen is used to power the system, and 0V input is earthed, as specified.
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22 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Large Motors
The largest recommended motor size is a 34-frame 3-stack. Please contact Parker if
you wish to use a larger frame motor.
Motor Connections at the Motor
Motor connections should be made directly between the drive and motor, the use of any
switching devices, such as contactors is not recommended.
In the majority of applications the drive will be used with an eight lead motor with the
windings connected in parallel or series, as shown in Figure 3-6. Motor connections will
need to be determined from the motors data sheet or Appendix B. These are normally
identified by wire colour or terminal markings, depending upon the make of the motor.
+
-
-
+
MOTOR CONNECTOR
X1
+
5
4
3
2
Gnd
A+
A-
B+
B-
-
SAFETY
EARTH
MOTOR
+
1
PARALLEL
CONNECTIONS
-
Motor case
+
-
-
+
MOTOR CONNECTOR
X1
+
5
4
3
2
Gnd
A+
A-
B+
B-
-
SAFETY
EARTH
MOTOR
+
1
-
SERIES
CONNECTIONS
Motor case
Figure 3-6. 8 Lead Motor Connection Options
WARNING - High Temperature
The motor case temperature may exceed 70°C and should be guarded from operator
contact.
Motor Safety Earth/Ground Connection
It is recommended that the motor is independently bonded to a local safety earth point. The
2
safety earth lead should be at least 2.5mm in area.
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3. ELECTRICAL INSTALLATION 23
Custom Motor Set Up
Within screen 2 of Guided stepper initialisation, clicking upon the Setup custom button will
open the window shown in Figure 3-7.
Figure 3-7. EASI-V Custom Motor Configuration Window
Motor
the general name/number for the motor.
Phase
continuous current rating of the motor in Amps RMS.
current
(parallel)
Resolution
number of steps per revolution
Rated speed shaft speed in rpm for a rotary stepper.
Winding
resistance of a single phase winding measured line-to-line in Ohms.
resistance
Winding
inductance of a single phase winding measured line-to-line in mH.
inductance
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24 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
The Other Parameters Tab
Selecting the Other parameters tab gives you access to the screen shown in Figure 3-8.
Figure 3-8. EASI-V Custom Motor Other Parameters
In-position
time (IT)
Digital I/O
The decimal number required by the IC system variable to configure the
input/output state of the drive.
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3. ELECTRICAL INSTALLATION 25
Figure 3-9. EASI-V Custom Motor Limits/home Parameters
Limit inputs
Four radio buttons used to configure the limit inputs.
Limit
Selection of normally closed or normally open limit switches.
switches
Home
Enable/disable the HOME command.
enabled
Home
reference
edge
Select the required edge of the home switch where you wish the home
position to be.
Home switch Defines the type of home switch used, normally open or closed.
Direction
+ velocity
Required direction and velocity. Positive direction commands must
produce movement towards the positive limit.
Acceleration Acceleration of the motor in revs/s/s.
Homing
mode
Homing mode selection – see sub-section on homing for an explanation
of these modes.
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26 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Motor Voltage Ratings
Motors with a withstand voltage rating from phase to earth of 1000V AC should be used. An
insulation withstand rating of 500V AC is acceptable if an isolating transformer with earthed
screen is used to power the system, and X1 pin9 (0V/GND) input is earthed, as specified.
Motor Safety Earth/Ground Connection
It is recommended that the motor is independently bonded to a local safety earth point. The
2
safety earth lead should be at least 2.5mm in area.
Short Circuit Protection
The motor outputs are protected against overload and short circuits.
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3. ELECTRICAL INSTALLATION 27
A range of
mating connectors
are supplied, depending
upon the type of fit-kit
ordered.
Communications
Function
X3
Rx+/Tx+ (RS485)*
Drive reset
RS232 GND
RS232 Rx
RS232 Tx
Rx-/Tx- (RS485)*
RS232 Tx (D loop)
1
2
3
4
5
6
7
8
9
HV STFB
X1
Do not connect
+5V output
Protective Earth
Power & Motor
X1
PE
10
X3
*requires CAN option
24-80V DC +HV
0V / GND -HV
Earth PE
24V DC
0V (GND 24v DC)
Motor Gnd
Motor phase (A+)
Motor phase (A-)
Motor phase (B+)
10
9
8
7
6
5
4
3
2
1
RS232
9-way
socket
6
9
Power & motor
10-way
connector
Control/Aux I/O
Function
X4
5
ANA1+ IN
ANA1- IN
0V
1
2
3
4
0V
1
Motor phase (B-)
6
+5V output
Fault output
Enc. A-/Step- IN
Enc. B-/Dir- IN
Enc. A- OUT
Enc. B- OUT
Energise/Shutdown*
Enc.A+/Step+ IN
Enc. B+/Dir+ IN
Enc. A+ OUT
X4
5
6
7
8
Motor Earth
ME
1
11
15
1
5
Control/Aux I/O
15-way
socket
Feedback, Digital encoder
9
Function
X2
10
11
12
13
14
Feedback enc. Z+
Feedback enc. Z-
GND
Reserved
+5V output
1
2
3
4
5
6
7
8
9
10
6
X2
Primary
encoder
15-way
socket
X5
15 Enc. B+ OUT
*Active high/low mode configurable
using system variable ES
1
10
15
GND
11
Feedback enc. A-
Feedback enc. A+
Reserved
5
15
User I/O
15-way
plug
5
11
1
10
Motor overtemp
10
User I/O
11 Feedback enc. B-
6
12
13
14
15
Feedback enc. B+
Function
X5
Fixing position
for motor lead
earth clip, included
in fit kit
Reserved
0V
0V
0V
Output 2
1
2
3
Reserved
Reserved
4
Output 1
5
Input 5 (limit+)
Input 4 (limit-)
Input 3 (Home)
Input 2 (Reg)
Input 1 (stop)
6
7
8
9
10
11 +24V
RJ45 connectors
8
12
13
14
+24V
+24V
Output 3
X7 (OUT)
1
15 Reserved
8
X6 (IN)
1
High speed
comm.
Interface
Figure 3-10. ViX Connector Pin Layout
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28 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Terminal Description
X1 Connector
X1 is the main power and motor connector. Both HV, +24V and the motor phase
connections are made to X1.
Connector Type
The mating connector for X1 is a Wieland 8213B/10F, part number 25.323.4053.0 (Parker
part number 0405.811). An approval marked version of this connector has the part number
25.323.1053.0.
Connector Pin Out
Connector Pin X1
Signal Name
24 to 80V DC +HV
0V/GND -HV
10
9
8
Earth PE
7
24V DC
6
0V (GND for 24V DC)
Motor Earth
5
4
Motor phase (A+)
Motor phase (A-)
Motor phase (B+)
Motor phase (B-)
3
2
1
Table 3-6. X1 Power and Motor Connections
Motor Connections at the Drive
Refer to the EMC installation information earlier in this section.
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3. ELECTRICAL INSTALLATION 29
X2 Connector
X2 provides the primary input connections for the motor feedback device. This is the input
that should be used for position maintenance and stall detection functions.
Connector Type
Connector type is a high-density 15-way D-type socket.
Connector Pin Out
Connector
Pin X2
Primary Encoder
1
2
Feedback enc. Z+
Feedback enc. Z-
GND
3
4
reserved
5
+5V output
6
GND
7
Feedback enc. A-
Feedback enc. A+
reserved
8
9
10
11
12
13
14
15
Motor overtemp+.
Feedback enc. B-
Feedback enc. B+
reserved
reserved
reserved
Table 3-7. X2 Primary Feedback Connections
Encoder Compatibility for X2 & X4
Incremental channels Input specification
Signal format quadrature 5V differential signals (A+, A-, B+, B-) index mark (Z+, Z-).
Maximum digital encoder input frequency 2.0MHz pre quad, 8.0 MHz post quadrature.
Maximum encoder supply current 350mA.
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30 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Motor Overtemperature Sensor
Standard Parker stepper motors do not use an over-temperature sensor, however when
using custom motors provision is made for the connection of either a thermal switch or
thermistor device. The following devices are supported:
• Thermik SNM130ES
• Cantherm F11 110-2-5 U106
Other ptc thermistors with a switch like characteristic are supported to DIN44081/44082.
The input requires a normally closed switch to be connected to GND on X2 pin 3 or 6.
If you use a custom motor with no overtemperature sensor fitted, make sure you leave the
‘Thermal sensor fitted’ check box un-checked in the Custom Motor Set Up screen, within
Easi-V to prevent an overtemperature fault being reported. This is the default setting in
Easi-V.
X3 Connector
X3 is the RS232/RS485 communications connector. RJ45 connectors X6 and X7 may also
be used for inter-drive communications where multi-axis systems are used.
RS485 Operation
RS485 operation is only possible on drives fitted with the appropriate FEM (Fieldbus
Expansion Module). If you require this feature please order the ViX – CM drive type.
Connector Type
Connector type is a 9-way D-type socket.
Connector Pin Out
Connector Pin X3
Function
1
2
Rx+/Tx+ (RS485)
drive reset
3
4
5
6
7
8
9
RS232 GND
RS232 Rx
RS232 Tx
Rx-/Tx- (RS485)
RS232 Tx (D loop)
Do not connect
+5V output
Table 3-8. X3 RS232/RS485 Connections
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3. ELECTRICAL INSTALLATION 31
Baud Rate
Use system variable BR to alter the baud rate of serial communications. Any change made
to the baud rate will only take effect following a save (SV) and system reset or power cycle.
Reset to RS232 Mode
To reset the drive to RS232 mode and to return to factory settings, remove power from the
drive, connect X3 pin 2 to GND and restore power.
CAUTION
This will erase ALL of your user settings and programs in volatile memory. The non-
volatile memory will not be overwritten until a save command is issued.
Terminal/PC
GND
Drive
GND
Rx
Tx
Rx
Tx
CONN.
SHELL
CONN.
SHELL
SERIAL
X3
Terminal RS232 socket Interface
1
5
6
9
4 Rx
2 Tx
5 Tx
3 Rx
3 GND
7 GND
Back of
Back of
mating plug
mating plug X3 Socket
1
13
Serial connector
socket
25
14
SERIAL
X3
PC RS232 socket Interface
1
6
9
4 Rx
3 Tx
5 Tx
2 Rx
3 GND
5
5 GND
Back of
mating socket
Back of
mating plug
X3 Socket
1
5
Serial connector
plug
9
6
Figure 3-11. X3 D-type Connector RS232 Connections
Inter-drive RS232 Connections
Use the RJ45 connectors X6 and X7 to inter-connect drives, see RS232 Daisy Chain later in
this section. Always make the primary connection via D-type X3.
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32 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
RS232 Connecting Leads
RS232 cables can be ordered from Parker. Various lengths are available as listed in
Table 3-9.
Part Number
Length
2. 5m
5.0m
RS232-EASI-0250
RS232-EASI-0500
RS232-EASI-0750
RS232-EASI-1000
RS232-EASI-1250
RS232-EASI-1500
7.5m
10.0m
12.5m
15.0m
Table 3-9. RS232 Connection Lead Types
X4 Connector
Connector X4 gives access to the following encoder input and output signals and the
differential analogue inputs. Certain input and output connections are dependent upon the
state of system variables EO (Encoder Output) and EI (Encoder Input). Encoder output
signals are not generated internally by the drive, they mirror the state of the feedback
encoder inputs (if present). Use encoder connection X2 for position maintenance and stall
detection feedback.
Connector Type
Connector type is a high-density 15-way D-type socket.
Connector Pin Out
Connector Pin X4
Encoder I/O
ANA1+ (input)
1
2
ANA1- (input)
3
0V
4
0V
5
+5V output
6
Fault
11
Energise/Shutdown_bar* (input)
*See system variable ES
Table 3-10. X4 Encoder I/O Connections
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3. ELECTRICAL INSTALLATION 33
Inputs Depending Upon the State of System Variable EI
Connector Pin
X4
EI=0
STEP+
EI=1
CW+
EI=2
12
7
A+
A-
STEP-
DIR+
DIR-
CW-
13
8
CCW+
CCW-
B+
B-
Outputs Depending Upon the State of System Variable EO*
Connector Pin
X4
EO=0
STEP+
EO=1
CW+
EO=2
14
9
A+
A-
STEP-
DIR+
DIR-
CW-
15
CCW+
CCW-
B+
B-
10
*Requires encoder feedback input on X2
Differential Analogue Input
The ViX stepper drive can accept a differential analogue input for use with the FRATE
command. The input circuit, shown in Figure 3-12, can interface to an external +/-10V
differential signal. Analogue to digital conversion (12-bit resolution) converts the analogue
input to a digital value for use within the drive. Read the value of the analogue input as a
count via system variable AI.
Drive
ANA1+
Input
impedance
200K
+
A to D
AI, analogue
input expressed
as a count
-
ANA1-
0V
Note: both inputs must
be connected - cannot
Software offset controlled
by system variable AO
be used as a single ended
input
GND
Figure 3-12. Analogue Differential Input
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34 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Figure 3-13 shows the input characteristic.
Velocity
(rps)
Commanded
velocity
Dead band
-10V
Volts
+10V
Figure 3-13. Analogue Differential Input Characteristic
An analogue deadband can be set, using system variable ‘AB’.
_________
Energise/Shutdown
Enable the drive by allowing the input pin to float high ‘1’ or by linking the pin to zero volts,
depending upon the input’s polarity. System variable ES controls the polarity of this input.
The default state of ES (Energise Sense) requires X4 input pin 11 to be connected to 0V to
enable the drive.
The function of this input differs when in mode ‘MP’, please refer to the Command
Reference section for more details.
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3. ELECTRICAL INSTALLATION 35
X5 Connector
X5 is the user Input/Output connector.
Connector Type
Connector type is a high-density 15-way D-type plug.
Connector Pin Out
Connector Pin X5
Input/Output
1
2
0V
0V
3
0V
4
Output 2
Output 1
Input 5 (limit+)
Input 4 (limit-)
Input 3 (home)
Input 2 (registration)
Input 1 (stop)
+24V
5
6
7
8
9
10
11
12
13
14
15
+24V
+24V
Output 3
Reserved
Table 3-11. X5 User Input/Output Connections
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36 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
User Inputs
Inputs can be configured using the Easi-V graphic interface or by writing directly to the IC
system variable. By adjusting the user input configuration, you can set the input switching
level threshold and you can set the internal input resistor to be a pull-up or a pull-down.
Figure 3-14 shows the position of software switches.
24V
SWA
'1'
'0'
SWB
'1' = Pull-up
'0' = Pull-down
(default)
'1' = invert
'0' = non-invert
0V
4K7
Logic inverting
Input
82K
network depending
upon input pull-up
pull-down state
Logic level as
reported by IS
o/c
'0'
'1'
27K
'1' = 24V threshold (default)
'0' = 5V threshold
SWC
0V
Figure 3-14. User Input Circuit
User inputs are high logic level and low level logic compatible, but must be configured
as pull-down inputs when used with low-level 5V logic, since the pull-up mode always
pulls-up to +24V.
Only one input is shown above, individual inputs can be set-up on a one-to-one basis
allowing different inputs to have different threshold switching levels or different pull-up, pull-
down arrangements.
CAUTION – Unexpected motor movement
De-energise the drive before making any changes to the I/O configuration.
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3. ELECTRICAL INSTALLATION 37
User Outputs
User outputs can be configured using the Easi-V graphic interface or by writing directly to the
IC system variable. By adjusting the user output configuration, you can set the output to
source or sink current. Figure 3-15 shows the output circuit.
Common IC
+24V
housing all
top-switches
for all outputs
'1' = Current source
0V
Output
'0' = Current sink
0V
Figure 3-15. User Output Circuit
User outputs are compatible with high-level 24V logic only. Each output can source
or sink 50mA.
Note: The easiest way of configuring the drive’s inputs and outputs is to use the
Easi-V graphic user interface.
Input/Output Configuration
To set-up the input and output configuration without using the EASI-V graphic interface, you
will need to write configuration patterns to the two-byte IC parameter, as shown.
aW(IC,{4 digit decimal number equivalent to a two-byte number})
Bits 8 to 12 control the switching threshold of inputs 1 to 5 (SWC setting).
Setting a bit to a ‘1’ gives a 24V switching threshold, a ‘0’ gives a 5V switching threshold.
Bit
IC
15
14
13
12
11
10
9
8
not
not
not
in_5
in_4
in_3
in_2
in_1
content used used used
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38 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Bits 0 to 4 control the input resistor pull-down/pull-up of inputs 1 to 5 (SWA setting).
Setting a bit to a ‘1’ sets the input resistor to be a pull-up to +24V, a ‘0’ sets the resistor to be
a pull-down.
Bits 5 to 7 controls the source/sink operation of outputs 1 to 3.
Setting a bit to a ‘1’ sources current from the +24V rail via the upper half of the output, while
setting a bit to a ‘0’ sinks current from a connected input through the lower output transistor
to 0V.
Bit
7
6
5
4
3
2
1
0
IC
out_3 out_2 out_1 in_5
in_4
in_3
in_2
in_1
content
Note:
[1] SWB is automatically set to ensure that the software will report ‘0’ for a closed input
switch and ‘1’ for an open input switch.
[2] sourcing outputs can only be used with 24V high level logic.
[3] 5V tolerant input connections must only be used with pull-down (sink) configuration as
the input pull-up always pulls up to 24V.
[4] Invalid combinations will report an error (*E), and the User Fault (UF) bit 1 is set (value
out of range).
User inputs are high logic level and low level logic compatible, but must be configured
as pull-down inputs when used with low-level 5V logic, since the pull-up always pulls-
up to +24V.
Example
Configure a drive with inputs in_1 and in_2 arranged as pull-down 5V threshold logic. In_3,
In_4 and In_5 as pull-up high threshold level logic, and all outputs as current sources. The
binary pattern required is:
(MSB)
00011100 11111100
(LSB)
In hex. this becomes 1CFC, which in decimal is 7420
So the required command to (say) axis 3 is 3W(IC,7420)
IC default setting
The default setting for the drive is all inputs set to 24V threshold, all inputs pulled-down and
all outputs sourcing, which gives a binary pattern of 00011111 11100000, which in hex.
gives 1FE0, resulting in the decimal equivalent of 8160.
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3. ELECTRICAL INSTALLATION 39
Fault Output
The fault output is an independent NPN open-collector output which is normally ‘low’, active
‘high’. The output ratings are +30V maximum in the OFF condition and 15mA maximum in
the ON condition. Figure 3-16 shows the output circuit.
Drive
circuit
Fault
Output
0V
Figure 3-16. Fault Output Circuit
Limit Switches
The drive has two limit inputs, the positive limit input and the negative limit input. When
wiring the limit switches it is essential to check that a positive direction command produces
motion towards the positive limit switch.
+24V
NC NEGATIVE
LIMIT
NC POSITIVE
LIMIT
Positive limit input
Negative limit input
POSITIVE
MOTION
Figure 3-17. Limit and Stop Switch Configuration
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40 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
RJ45 Interfaces
Positioned beneath the drive are two RJ45 communication interfaces X6 and X7. The two
interfaces provide support for Canbus, RS485 (using the Field Expansion Module) and daisy
chain ports for multi-axis RS232 connections between drives.
8
X7 RS232 daisy
chain output
1
8
X6 RS232 daisy
chain input
1
High speed
comm.
Interface
Figure 3-18. Position of Connectors X6 and X7
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3. ELECTRICAL INSTALLATION 41
FEM1
CANopen/RS485
RX+/TX+ RS485
RX-/TX- RS485
CAN H
RS232 Gnd
RS232 Gnd
CAN L
CAT5 cable colours
X6
1
2
3
4
5
6
7
8
White/Orange
Orange
White/Green
Blue
White/Blue
Green
White/Brown
Brown
RS232 Tx
RS232 Rx
X7
1
2
3
4
5
6
7
8
RX+/TX+ RS485
RX-/TX- RS485
CAN H
RS232 sense
RS232 Gnd
CAN L
White/Orange
Orange
White/Green
Blue
White/Blue
Green
White/Brown
Brown
RS232 Rx
RS232 Tx
Table 3-12. X6/X7 Input/Output Connections
CAN Bus Termination
Systems using CANopen will need to terminate the final X7 output with a 120 ohms quarter
watt resistor connected between X7 pins 3 and 6. A ready-made CAN bus RJ45 terminator
is available as shown in Figure 3-19 (Parker part number ‘ViX-RJ45-G).
50mm
pin 1
Figure 3-19. CAN Bus Terminator
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42 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Communication Daisy Chain
Drives can be ‘daisy-chained’ for RS232/RS485* operation as shown below. Using this
arrangement the drive connected to the controlling PC, via its front panel D-type connector,
becomes axis #1. To automatically assign addresses, connect all power, motor, feedback
and communication cables then power-up all the drives, see ‘#’ command for more details.
At the controlling PC, type the following commands:
#1
;cause the 1st drive to establish the daisy chain
in a 3-axis system the response will be #4
0SV ;save the address configuration
0Z ;reset
response should be a single check sum from axis 1
more than one check sum indicates a problem, possibly no save command
Final drive
terminates
the daisy chain
X6 rear
X7 front & X6 rear
RS232 Input from PC
X7 front
Figure 3-20. RJ45 RS232 Daisy Chain Connections
*Note for RS485 operation, the drive will need to be fitted with a FEM CAN & RS485
interface. Using the command #1(485) will switch all drives to 485 operation, which is
automatically saved.
Using the X6/X7 connections on the underside of the drive will allow the last drive in the
chain to detect that there are no more connections made to X7 which will close the daisy
chain loop back internally.
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3. ELECTRICAL INSTALLATION 43
To maintain the integrity of the EMC screening, all RS232 and RS485 connections must be
made via the drive’s X3 D-type connector.
RJ45 Connecting Leads
RJ45 link cables can be ordered from Parker. Various lengths are available as listed in
Table 3-13.
Part Number
Length
0.25m
0.5m
VIX-RJ45-0025
VIX-RJ45-0050
VIX-RJ45-0075
VIX-RJ45-0100
VIX-RJ45-0200
0.75m
1.0m
2.0m
Table 3-13. RJ45 Connection Lead Types
Note: Individual cables that are within the RJ45 daisy chain system must not exceed a length
of 2m. Where a cable length greater than 2m is required between axes, a fully screened
connection should be made via connector X3.
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44 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
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4. CONTROL OF VIX DRIVES 45
4. Control of ViX Drives
Overview
This section introduces you to the operation of the ViX stepper drive, the implementation of
motion control moves and the way commands are used. Basic controller operation is
described together with the code structure. How system information is signalled via system
variables and the use of various flag registers for status and fault reporting are described.
Both basic and advanced motion control functions are covered including elements of event
driven code used for fault reporting and registration.
Controller Operation
ViX intelligent drives have an integrated controller which can be driven directly by a PC over
a serial link, or programmed to respond to code selected by event triggers or user
instructions.
Direct Mode
Direct operation of the controller over a serial link can be used for program
development/downloading purposes or direct on-line control from an industrial PC or PLC.
When used directly the controller will accept commands prefixed with the drive’s address
and will action the commands as they are received. In direct mode any controlling
application program is stored in a remote location and is only downloaded to the drive when
required.
Programmed Mode
This mode allows a program stored within the drive to control operations. The program can
be written off-line on a PC and then downloaded to the drive via a serial link. The application
program is stored within the drive and is automatically invoked at power up provided it is
enabled by the <a>ARM1X command and the program has a START label. Alternatively,
you could directly issue a <a>GOTO(START) command.
Code Structure
You write program code as a series of blocks. Each code block has a unique label at the
beginning and is terminated with an END label (block delimiter). The use of labels allows the
code structure of the form illustrated in Figure 4-1, which shows the block nature together
with an example of code.
Declare
Declare every label used in a program, apart from START, REG, NOREG and FAULT that
have been pre-declared. If a label is declared, but not defined, a runtime error will be
signalled when it is called.
Note: START, REG, NOREG and FAULT are all reserved labels.
You can only declare labels in the command line at the start of a program or within the
START code. The choice is between memory efficiency and the retention of declared labels
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46 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
during up-loading/down-loading of programs. Declaring labels in the command line, before
any START code, makes the most efficient use of the available memory. If you then up-load
the program to a PC and later down-load the same program the declarations will have been
lost. To retain declared labels you must declare them in the START code, this allows a
program to be up-loaded and down-loaded without loss of declared labels, although more
memory will be used. Despite the greater amount of memory being used, it is safer to make
the declarations within the START label as there is less chance of forgetting to declare parts
of the code.
Example of DECLARE being used in the command line:
1K
;Kill or stop any program currently running
;Erase all existing programs
;Declare labels
1CLEAR(ALL)
1DECLARE(MAIN)
1DECLARE(MOVE1)
1DECLARE(MOVE2)
.
.
Example of DECLARE being used following the START label:
1K
;Kill or stop any program currently running
1CLEAR(ALL)
1START:
;Erase all programs
1DECLARE(MAIN)
;Declare labels
1DECLARE(MOVE1)
1DECLARE(MOVE2)
.
1END
Labels
Labels consist of up to 5 upper case alphanumeric characters terminated with a colon (:), but
a label must begin with an alpha character. Choose a name that is relevant to the operation
being performed, or a system label name.
To terminate a code block use ‘END’ (no colon).
You can use up to 20 labels, although four of these have already been allocated to START,
REG, NOREG and FAULT, leaving sixteen for general use.
Label Execution
By using the label select command (LSEL), labelled code blocks can be triggered by a digital
pattern appearing on certain user inputs. The command defines the user inputs to be used,
the style of code detected (BCD or binary) and the manner in which the code is executed
(continuous or re-trigger).
Enable the LSEL command using its on/off parameter to allow input selection of labels.
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4. CONTROL OF VIX DRIVES 47
Structure
The code example of an absolute positioning move shown in Figure 4-1 demonstrates how
to write code that follows the block structure. Use the start code to initialise the drive:
1START:
Start code and
Initialisation
1DECLARE(MAIN)
1DECLARE(MOVE2)
1LIMITS(3,0,0)
1GOTO(MAIN)
1END
1MAIN:
Main
1PROFILE2(40,10,-48000,25)
Program
1GOSUB(MOVE2)
1END
1MOVE2:
1W(PA,0)
1MA
1USE(2)
Block 1
Block 2
Block 3
1G
1END
Figure 4-1. Program Structure
Example:
1START:
; start label definition
; declare labels
; declare move 2
; configure limits.
; goto main program
1DECLARE(MAIN)
1DECLARE(MOVE2)
1LIMITS(3,0,0)
1GOTO(MAIN)
1END
Use the MAIN part of the program to define profiles and to control the order of moves:
1MAIN:
; main label definition
; define move parameters
; jump to label move 2
; end of label definition
1PROFILE2(40,10,-48000,25)
1GOSUB(MOVE2)
1END
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48 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Finally, call individual moves from the main part of the program:
1MOVE2:
1W(PA,0)
1MA
1USE(2)
1G
; define program label “move2”
; zero position absolute
; absolute positioning move
; use motion profile 2
; execute move
1END
; end of program move 2 definition
Note: PROFILE2 defined in the main part of the program has the following characteristics:
²
²
ACCELERATION 40rps , DECELERATION 10rps , DISTANCE 48000 steps (12 REVS
MOVE), NEGATIVE DIRECTION , VELOCITY 25 rps.
In small programs, the start code can be combined with the main part of the program. For
experienced X-code users, the shorter blocks of code in the example above, accessed via
subroutines, is the equivalent of a sequence.
A second example illustrates the code required for an incremental move. Here the START
and MAIN code blocks have been combined within the START block:
1START:
; start label definition
1DECLARE(MOVE1)
1LIMITS(3,0,0)
1PROFILE1(80,20,24000,20)
1GOTO(MOVE1)
1END
; declare move1 label
; configure limits (disable, n/c).
; define move parameters
; transfer to label move 1
; end of label definition
1MOVE1:
1MI
1USE(1)
1G
; define program label.
; incremental positioning move
; use motion profile 1
; execute move
1END
; end of program move 1 definition.
Note: [1] DEVICE ADDRESSING IS REQUIRED FOR ALL COMMANDS
[2] PROFILE1 has the following characteristics:
²
²
ACCELERATION 80rps , DECELERATION 20rps , DISTANCE 24000 steps (6 REVS
MOVE), POSITIVE DIRECTION , VELOCITY 20 rps.
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4. CONTROL OF VIX DRIVES 49
LOOP Command
The block structure of the code lends itself to performing repetitive operations, using the
LOOP command. The command can be used to call a particular labelled block of code for
either a specified number of times or continuously.
An example using the LOOP command is given below, again the START and MAIN code
blocks have been combined within the START block:
1START:
; start label definition
; declare label
; disable limits
; define move parameters
; set mode to incremental
; repeat the load unload 6 times
; end of label definition
1DECLARE(LOAD)
1LIMITS(3,0,0)
1PROFILE3(100,50,4000,35)
1MI
1LOOP(LOAD,6)
1END
1LOAD:
1USE(3)
1O(XX0)
1T1
; define program label load
; use motion profile 3
; ensure o/p 3 is off
; wait for 1 sec delay
; execute move
1G
1O(XX1)
1T1
1END
; turn on o/p 3
; wait for 1 sec delay
; end of label definition
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50 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Reserved System Labels
Certain pre-defined labels are recognised by the controller as containing code used for
common operations. If event triggered code is enabled (ARM1), the code entered for these
common operations will be automatically run when the event occurs.
System labels have the following names:
START:
FAULT:
REG:
specifies the power on code, run using the ARM1 command
specifies the code that is to be run when a fault occurs
specifies the code to be run when a registration mark is detected within the
registration window
NOREG:
specifies the code to be run when a registration mark is not detected within the
registration window
Note: If necessary, these labels can be used for other purposes, but cannot be re-named.
Fault Label
Use the pre-declared label named FAULT to identify a block of code that is executed when a
particular problem (fault) has been detected. The code following the FAULT label needs to
change the state of an output, to indicate a fault has occurred and then go on to possibly
diagnose the problem. Once the problem has been corrected, the FAULT code will need to
detect an external ‘reset’, by monitoring a designated input and then execute an ON
command to clear the FAULT. At the end of the FAULT code a GOTO(START) can be
issued to restart the program. This style of programming will always ensure that once a
fault is detected the drive will stop and will not start again until commanded to do so.
Before the code following a FAULT label can be executed certain conditions must be met,
these are:
• FAULT must be defined
• ARM must be set to enable a FAULT label
This means FAULT label code must be present and the ARMX1 command exists at the
beginning of the code.
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4. CONTROL OF VIX DRIVES 51
The conditions under which the FAULT label is called will vary depending upon the fault itself
and the condition of various other commands and command parameters. An exact
description is presented in Table 4-1. However, in general, a FAULT label will be called
given any one of the following conditions:
• An attempt to go home further onto a limit is made and the limit is enabled.
• An attempt to go further onto a limit is made with no fault label currently
running, the limit configuration is stop on limit and the limit is enabled.
• A limit is hit during motion and the move is not a go home, a fault label is not being
run, the limit configuration is stop on limit and the limit is enabled.
• A drive fault has occurred, but no drive programming is taking place.
• When it is called from a GOTO, GOSUB or LOOP command*.
*Note: in this case a FAULT has not actually occurred, consequently the FAULT label will be
called irrespective of the state of the ARM command.
Table 4-1 summarises the conditions necessary for the FAULT label to be called. The
FAULT label will not be called when any one of the following conditions occur:
• There is an error whilst sending a command
• There is a general run time error with the program
• The program memory area becomes full
• A label is attempted to be run when it does not exist
• The transmit buffer or receive buffer suffer an overflow
Command & parameter conditions
FAULT
label
defined
Not
GH
Fault Limit is
ARM enabled running
bit
Not
Limit
decision
is stop
Not
program
-ming
Fault
Condition
fault
label
program
execution
the drive
G onto a limit
Hit limit
Y
Y
Y
Y
Y
Y
N/A
Y
Y
Y
Y
Y
N/A
N/A
Y
Y
Y
Y
Y
Drive fault
GOTO
N/A
N/A
N/A
N/A
Y
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Y
GOSUB
LOOP
Y
Y
Table 4-1. Conditions Required to Call a Fault Label
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52 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Example
The following example shows the use of a FAULT label within a program.
1ARM11
1SV
;enable auto-run on power-up & enable fault routine
;save the settings
1START:
;start of program
1ARM11
;re-enable auto-run & fault in case ‘K’ command sent
.
<initialisation commands>
.
1O(1XX)
;turn on output 1 - drive OK
.
<main process commands>
.
1END
1FAULT:
;fault routine
1O(0XX)
;turn off output 1 - drive fault
.
<diagnostic code - if required>*
.
1TR(IN,=,1XXXX)
1ON
;wait for input 1 to become active (RESET)
;clear fault
1GOTO(START)
1END
;run from start of program again
*Note: An example of diagnostic code is given in the sub-section entitled Conditional Code
later within this section.
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4. CONTROL OF VIX DRIVES 53
Start Label
The system label START: introduces the drive’s setup and initialisation code. With ARM
enabled the code is automatically executed at system start-up*. Consequently the code
needs to be saved with ARM1X set. If you save a program with ARM0X set, the start-up
code will not run and the controller will only respond to serial input commands.
*Unless a drive fault is pending and a fault routine is defined and armed.
Start Label Example:
1START:
1”RUNNING”
-
-
1END
1FAULT:
1”FAULT”
1TR(IN,=,1XXXX)
1GOTO(START)
1END
1ARM01
1SV
;enable fault routine only
;save all settings
If you cycle the power to the drive the “START” routine will not automatically run. To start it
you would have to type in 1GOTO(START). However, the “FAULT” routine will run if a fault
occurs
Entering the following code:
1ARM11
1SV
;enable auto run on “START”
;save all settings
The “START” routine should automatically run on the next power-up.
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54 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Use of the LSEL Command
You can let user inputs call programmed routines by the use of special label names and
associated user input numbers. By including the code you wish to action, following a pre-
defined input label, will enable your code to be run when the defined user input is activated.
For example, to select one of three labels using two user inputs, the code would be:
1START:
1CLEAR(ALL)
1DECLARE(L1)
1DECLARE(L2)
1DECLARE(L3)
1LSEL1(0,2,1)
;clear memory
;declare label 1
;declare label 2
;declare label 3
;define inputs and code
1A20
1V5
;set acceleration
;set velocity
1O(000)
1END
;set all outputs low
1L1:
;label 1 code
1O(1)
1D1000
1G
1T1
1O(0)
1END
;set output 1 high
;set distance to 1000 steps
;move 1000 steps
;wait for 1 second
;set output 1 low
1L2:
;label 2 code
1O(01)
1D-2000
1G
1T1
1O(00)
1END
;set output 2 high
;set distance to -2000 steps
;move -2000 steps
;wait for 1 second
;set output 2 low
1L3:
;label 3 code
1O(001)
1D3000
1G
1T1
1O(000)
1END
;set output 3 high
;set distance to 3000 steps
;move 3000 steps
;wait for 1 second
;set output 3 low
Note: The routine will only run when it receives a valid input pattern corresponding to the
numbered label names.
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4. CONTROL OF VIX DRIVES 55
Upon receipt of a valid numeric input pattern the controller runs the associated routine. For
example, binary pattern 3 causes routine L3 to run. This routine must finish (reach the END
command) before the inputs can be automatically scanned again. The state of the inputs is
presented to the controller as a parallel bit pattern. Invalid binary patterns (for non-existent
labels) are ignored.
When using the label selection function you must be aware that altering any basic operating
parameters, such as velocity, in a routine will change the value used in subsequent routines.
Consequently, you will need to define fully the move required in each subroutine block. This
can be arranged by the USE command.
System Variables
System variables are named variables held within the drive’s controller that are used for
storing a variety of system values and settings. Read system variables using the Report
system parameter (R command), but note, you can only write to certain variables using the
Write (W command).
Certain system variable values may be tested using the IF command. This allows
conditional branching within the program code, enabling equal to, not equal to, greater than
or less than decisions to be made. Wait for trigger (TR command) can also test certain
system variables by delaying code execution until the value of a system variable matches
some stored number or string within the program. Refer to the later section on conditional
code.
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56 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Table of System Variables
Table 4-2 lists system variables in alphabetic order together with their read/write status and
range of values stored.
Var
Name
R W
Range/default value
AB Analogue
Deadband
Y Y 0 to +255, default = 0
AI
Analogue Input
Y N -2047 to +2047
AO Analogue Offset
BR BAUD rate
BU Buffer usage
Y Y -2047 to +2047, default = 0
Y Y 9600 or 19200 bits per second (9600 default)
Y N 0 to 100% of program buffer used
CQ Command queuing Y Y 1= Pauses until move complete (default)
0= continuous execution
DC Damping
Configuration
Y Y 0 = settling time damping OFF (default)
1 = settling time damping ON
DF Drive Fault status
DF1 Drive Fault status
DF2 Drive Fault status
DF3 Drive Fault status
DF4 Drive Fault status
Y N See below:
Y N First byte of 32-bit DF variable
Y N Second byte of 32-bit DF variable
Y N Third byte of 32-bit DF variable
Y N Fourth byte of 32-bit DF variable
EI
Encoder Input
Y Y 0=step/dir, 1=cw/ccw, 2=quad ABZ, de-energise drive
to change
EM Encoder count per Y Y 1 to 4200000 (default 4000)
rev.
EO Encoder signal
Output
Y Y 0=step/dir, 1=cw/ccw, 2=quad ABZ, de-energise drive
to change
EQ Echo Queuing
ES Energise Sense
Y Y 0=normal, 1=wait for <CR>, 2=cmd response only
Y Y Sets the sense of the external enable/shutdown_bar
signal
0=low signal to enable
1=high signal to enable
EX Comms. Response Y Y 0= speak when spoken to, echo off, default for RS485
Style & Echo
Control & Physical
Interface (RS232)
1= speak whenever, echo off
2= speak when spoken to, echo on
3= speak whenever, echo on, default for RS232
Table 4-2. List of System Variables
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4. CONTROL OF VIX DRIVES 57
Var
Name
R
W
Range/default value
FB
Fieldbus Baud
Refer to CANopen user guide
FC Fieldbus Control
FN Fieldbus Node ID
Refer to CANopen user guide
Refer to CANopen user guide
FP
Fieldbus Protocol
Y Y
Y Y
Refer to CANopen user guide
HF Home Final
velocity
Sets the final velocity of the home move
Range: 0.001 to 5.0 rps (default 0.1)
Input pull-up/down, output source/sink configuration
0 to 8191 default:8160
IC
Input/Output
Configuration
Y Y
N N
IN
Inputs (on drive)
Local drive inputs 1 to 5, same format as IS command
Fieldbus expansion inputs, IN1=bank1, IN2=bank2.
1= In position or 0= not yet in position
1 to 500mS, default=10mS
INn Inputs (expansion) N N
IP
IT
In Position flag
In Position Time
Y N
Y Y
Y Y
MS Motor Standby
Range 10% to 100% of programmed current
(default 50%)
MV Moving
Y N
Flag 1= moving or 0 = not moving
PA Position Actual
PE Position Error
Y N* -2,147,483,648 to 0 to 2,147,483,647
Y N* +/- 65535
PF
PI
Position Following Y Y
-2,147,483,648 to 0 to 2,147,483,647
Position
Y Y
Y Y
Y N
-2,147,483,648 to 0 to 2,147,483,647
Incremental
PM Position Master
-2,147,483,648 to 0 to 2,147,483,647 Note: a write to
PM sets the modulus
PR Position
Registration
The primary (X2) feedback position (PA) on the last
active transition on input 2 (start of valid REG move).
Range: -2,147,483,648 to 0 to 2,147,483,647
PS Position
Secondary
Y N
The PM count position on the last active transition on
input 1 (falling edge viewed using IS).
Range: -2,147,483,648 to 0 to 2,147,483,647
PT
Position Target
Y Y
Y N
-2,147,483,648 to 0 to 2,147,483,647 Trajectory
generator open loop target position
RB Ready/Busy flag
Flag 0= ready or 1= busy
RM Registration Move Y N
Flag 1= reg move in progress
0 = not doing reg move
RV ReVision of
software
Y N
Y Y
x.yy major.minor
SC S Curve
configuration
0 = S curve accel/decel disabled (default)
1 = S curve accel/decel enabled
reserved
SN Serial number
Y N
Table 4-2. List of System Variables (Continued)
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58 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Var
Name
R
W
Range/default value
ST
Status of indexing Y N
See below
ST1 Status of indexing Y N
ST2 Status of indexing Y N
ST3 Status of indexing Y N
ST4 Status of indexing Y N
First byte of 32-bit ST variable
Second byte of 32-bit ST variable
Third byte of 32-bit ST variable
Fourth byte of 32-bit ST variable
TT
Trigger Timeout
Y Y
Optional timeout for trigger command 0-65 seconds in
0.01 increments. User status bit 8 is set to indicate
timeout occurred before trigger condition met. Bit is
clear if trigger condition met before timeout. The
default time is = 0.00 (no timeout).
UF User program
Fault status
Y N
See below
UF1 User Fault Status
UF2 User Fault Status
UF3 User Fault Status
UF4 User Fault Status
Y N
Y N
Y N
Y N
First byte of 32-bit User Fault status word
Second byte of 32-bit User Fault status word
Third byte of 32-bit User Fault status word
Fourth byte of 32-bit User Fault status word
*Can be set to 0 only.
Table 4-2. List of System Variables (Continued)
AB, AI and AO Description
AB controls the dead band and AO the offset of the differential analogue speed control input.
See Differential Analogue Input in the Electrical Installation section.
BR Description
This sets the Baud rate of serial communications. Enter the required Baud rate directly, for
example aW(BR,19200) to set the rate to 19200. You will need to save this setting and then
reset the drive (Z command) or cycle the power before the change will take effect.
BU Description
Gives the total percentage of program buffer usage, unlike an aDECLARE that gives the
percentage of buffer room for each label, subroutine.
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4. CONTROL OF VIX DRIVES 59
CQ Command Queuing
Enable command queuing in mode incremental/absolute to buffer each command waiting for
the previous command to complete, before issuing the next. In certain circumstances,
disable this sequential operation, for example if you need to generate a trigger pulse part
way through a move. Normally, the move would complete before trigger command
execution, but by disabling command queuing, the trigger command becomes immediate
and will operate upon meeting the required trigger conditions.
For example, the following code would allow output 1 to signal PA is greater than 10000
before finishing the move.
1MAIN:
1MI
;define label
;mode incremental
1W(CQ,0)
1G
;enable continuous execution of commands
;go
1TR(PA,>,10000)
1O(1)
;trigger when position actual becomes greater than 10000
;output 1
1TR(IP,=,1)
1W(CQ,1)
1END
;wait for move to finish
;enable command queuing again
DC Damping Configuration
Selecting DC gives a faster settling time by damping oscillations (ringing) of the motor shaft.
Under certain conditions, such as use with low current motors, the activation of the damping
circuit can lead to an increase in the audible noise of operation. However, we recommend
the use of DC for highly dynamic operations.
DF Description
See drive fault bit description in Reporting the Status of Variables.
EO Description
When an encoder is connected to the primary feedback input on X2, you may use the
encoder outputs (connector X4) to supply a step-direction or step-up/step-down signal for
use by another drive. System parameter EO determines the output as defined in
Table 4-3. Note: The source of these pulses is X2 primary encoder, they are not generated
from within the drive’s indexer. Before changing the system variable EO it is necessary to
de-energise the drive.
X4
14
9
EO=0
STEP+
EO=1
CW+
EO=2
A+
A-
STEP-
DIR+
DIR-
CW-
15
10
CCW+
CCW-
B+
B-
Table 4-3. Encoder Output Configuration
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60 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
EI Description
System parameter EI, controls encoder inputs (connector X4) as defined in Table 4-4.
X4
12
7
EI=0
STEP+
EI=1
CW+
EI=2
A+
A-
STEP-
DIR+
DIR-
CW-
13
8
CCW+
CCW-
B+
B-
Table 4-4. Encoder Input Configuration
CAUTION
De-energise the drive before changing EI and EO.
EQ Description
Echo queuing (EQ) is a system variable that can be useful for multi-axis control programs
where you need to send and receive messages from individual drives controlled from a PC.
The variable controls the way messages are echoed and its use prevents corruption of
commands by system response messages. In a normal multi-axis system, commands from
the main controller are, in turn, echoed from drive to drive throughout the system and can be
finally returned to the main controller. If a command is transmitted whilst a drive is supplying
a response the two messages will interact, effectively destroying one another. Setting EQ to
mode 1 prevents a drive from issuing a response until it receives a carriage return, thereby
delaying its response until it finishes receiving. This stops the corruption of messages, which
can now be read back in a complete form.
EQ can only be used with a report or write command, as follows:
R(EQ) reads the current setting of the system variable.
W(EQ, 0 - 2) sets the EQ system variable to operate in mode 0, 1 or 2.
Mode 0 sets the standard operating mode where characters are echoed as they are sent.
Mode 1 does not allow any characters to be echoed until a carriage return is sent. This
prevents complete messages from being split if a data collision occurs.
Mode 2 allows only the response from a command to be sent, not the command itself. This
minimises the amount of data being transferred and therefore helps to reduce the chance of
a transmit buffer overflow.
Note: The set address command (#) will be echoed irrespective of the state of the echo
queuing variable.
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4. CONTROL OF VIX DRIVES 61
ES Description
System variable ES controls the required polarity of signal on the enable/shutdown_bar input
(X4 pin 11). The default value of ES is zero (ES=0), therefore to enable the drive connect X4
pin 11 to X4 pin 4 (0V). With ES=1 X4 pin11 may be left open circuit to enable the drive. To
energise the drive, the drive must be enabled and the ON command issued. The function of
this input differs when in mode ‘MP’, please refer to the Command Reference section for
more details.
EX Description
System variable EX controls the style and protocol of the drive’s serial communications link.
IP, IT and MV Description
System flag variables IP (In Position) and MV (Moving) together with variable IT (In position
Time) interact with one another as shown in Figure 4-2. The MV flag is only high whilst
commanded motion is taking place. The IP flag can only go high once movement has
stopped and the IT timer value has timed-out. Consequently you need to set IT to a time
long enough to ensure velocity variations (ringing) has ceased.
Velocity
(revs/sec)
main move
Time, seconds
0
1
MV
0
APPROACHING
POSITION
IT
ERROR
RINGING
1
IP
0
Figure 4-2. Interaction of MV, IP, & IT
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62 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
You do not have to wait for the IP flag to be set at the end of every move, but its use
improves positioning accuracy.
Example Use this code after each G command to improve positioning.
1MI
1W(CQ,0)
1G
; mode incemental
; turn off command queuing
; start the move
1T0.1
; wait 100ms
1IF(MV,=,1)
1”Moving”
1TR(IP,=,1)
1”Stopped”
1W(CQ,1)
; re enable command queuing
HF Description
HF sets the final home velocity when you perform a GH command.
IC Description
See IC System Variable in the Electrical Installation section.
IN Description
The IN system variable is equivalent to the IS command, but allows individual inputs to be
tested using IF and TR commands during conditional coding.
For example:
The following test looks for input 1 low and input 3 high.
IF(IN,=,0X1XX)
Where X=don’t care.
INn Description
The INn system variable is used to define a particular bank of inputs when used with
Fieldbus input expansion modules.
MS Description
When the motor is stationary, reduce its current to minimise heating or to conserve power.
MS sets the reduction in current as a percentage of the programmed current (the value set in
the MOTOR command). When selected, the drive will switch to standby 25mS after the last
motor step.
Motor standby current reduction is capped at a value of 70% of the drive’s maximum output
current. Consequently, if you attempt to set an MS value greater than 70 the current
reduction value will always be equal to 70% of the drive’s maximum output current. For
example, using a ViX500 (max. output current of 5.6A) and setting MS to 90 will give a
current reduction value of 4A (70% of 5.6A).
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4. CONTROL OF VIX DRIVES 63
PA Description
PA reports the actual position of the motor shaft, assuming a primary encoder is fitted.
Although PA is marked as being read only it will accept the value 0 to be written to it for
resetting purposes. If you perform a W(PA,0) system variables PF, PE and PT will also be
set to 0.
PE Description
PE reports the position error, that is, the difference between PT and PA.
PF Description
PF reports the position fed-back by a remotely mounted encoder for following applications.
This is the position demanded by the following input. Counts are only recorded when
following is enabled and at the scaled rate, this means if the scale is -50% and 4000 counts
are received by the drive, PF will read –2000.
PI Description
PI reports the distance moved by the last move (G) command.
PM Description
PM reports the number of counts received from power-on by the following input. No scaling
is applied and PM counts regardless of following being on or off. Writing a number to PM
sets the modulus for count wrapping. That is, writing a specific number of counts to PM sets
the count required before the drive re-starts counting from zero again. This is useful if you
wish to know the position of the motor shaft as an arbitrary count.
For example writing a count of 4000 to PM means that for every shaft rotation a new count of
0 to 3999 is started (until the absolute count limit is reached). By reading PM, a count will be
returned that is somewhere between 0 and 3999, the exact value being an indication of the
instantaneous shaft position.
PR Position Registration Description
PR always reports the position of the motor from the primary feedback (X2 connector) signal
on the last active transition on user input 2. The signal is only active at the start of a valid
REG move.
PS Position Secondary Description
PS reports the position of the following input from the secondary feedback (X4 connector)
signal on the last active transition on user input 1.
PT Description
PT reports the open loop target position of the motor, that is, where you have commanded
the motor to move to.
RB Description
Reports the state of the controller as being ready or busy. While executing a program or
subroutine the controller is busy.
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64 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
RM Description
Reports a 1 if a registration move is being actioned.
RV Description
Reports the revision of software being used by the controller.
SC S-Curve configuration
To reduce the amount of jerk (rate of change of acceleration or deceleration) within a move,
enable SC. When enabled, this variable smoothes-out rapid changes of acceleration, as
shown in Figure 4-3.
Trapezoidal
S-Curve
Time
Time
Time
Time
Maximum Jerk
Less Jerk
Figure 4-3. S Curve Correction of Moves
To achieve this type of S curve correction an average acceleration value is used which is set
at half the value of the maximum acceleration. In all cases, the value of AA will be used for
acceleration and deceleration. If a value of AD is set that is not equal to AA, then the value
of AA will be used for all acceleration and deceleration settings. Asymmetric move profiles
are not possible when using S-curve correction.
Since the peak acceleration will be twice that of AA, this needs taking account of when
performing any torque calculations.
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4. CONTROL OF VIX DRIVES 65
SN Description
reserved.
ST Description
See reporting of status bits in Reporting the Status of Variables.
TT Description
The trigger timeout can be set or read using TT. If a timeout occurs status bit 8 is set high.
Note: Setting a value of 0.00 results in NO trigger timeout.
Example:
1W(TT,1.5)
1G
;timeout after 1.5 seconds
;do the move
1TR(IN,=,1)
;wait for input 1 to activate or timeout
1IF(ST1,=,XXXXXXX1) ;check for timeout
1GOTO(TOUT)
;jump to ‘TOUT’ routine
1”IN1 ON”
.
;else display message over comms. link
;continue code
Reporting the Status of Variables
By examining Table 4-2 you can see that most system variables take a numerical value or
record a simple ON/OFF state (0 or 1 Flags). Certain variables perform a reporting function
which provides you with information on the status of the indexer and any drive faults present
in the hardware or user program code.
Status Variable Reporting
Variable ST is a 32-bit double word that contains status information.
When read, ST reports a 32-bit double word pattern of the form:
*0000_0000_0000_---32 bit wide double word---_0000
Bit No. 1 4 5 8
32
Where a bit is set (displayed as a 1) its bit number can be determined and compared with
the bit number value given in Table 4-5 to determine the Status Information being reported.
Use the Read command to display the ST word pattern, that is ‘aR(ST)’.
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66 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Bit
Number
Bit
Tested
Status Information
Command processing paused
1
ST1.1
ST1.2
ST1.3
ST1.4
ST1.5
ST1.6
ST1.7
ST1.8
ST2.1
ST2.3
ST2.4
ST2.5
ST2.6
ST2.8
ST3.1
ST3.2
ST3.3
ST3.4
ST3.5
ST3.6
ST3.7
ST3.8
ST4.1
ST4.2
ST4.3
ST4.4
ST4.5
ST4.6
ST4.7
2
Looping (command executing)
Wait for trigger (input)
3
4
Running program
5
Going home
6
Waiting for delay timeout
Registration in progress
7
8
Last trigger command timed out
Motor energised
9
11
12
13
14
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Event triggered - active until trigger inputs are reset
Input in LSEL not matching label
-ve limit seen during last move
+ve limit seen during last move
Reserved
Executing a position maintenance move
Possible stall
Moving (in motion)
Stationary (in position)
No registration signal seen in registration window
Cannot stop within the defined registration distance
Reserved
Reserved
In motion, 0 for positive motion, 1 for negative motion
Reserved
Following enabled = 1, not following = 0
STOP input active
Load mounted encoder enabled
Scaling enabled
Command input inverted
Table 4-5. Status Bits Description
Status Variable Byte Reporting
A convenient and more compact way of interrogating the status variable is to test it a byte at
a time using the STn within a read command, where n is used to select the byte to be tested.
For example to read or test the first 8 bits (first byte) of the ST variable status word, use ST1.
Since the status word consists of 4 bytes the relevant part of the word can be read using
ST1 (bits 1 to 8), ST2 (bits 9 to 16), ST3 (bits 17 to 24) or ST4 (bits 25 to 32).
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4. CONTROL OF VIX DRIVES 67
Fault Status Reporting
Faults are classified into two groups:
Drive Faults DF (hardware faults present in the drive)
User Faults UF (user program faults)
or
Drive Faults
Hardware drive faults will cause the drive output stage to be turned OFF (de-energised).
This will cause the Drive LED to turn RED. Once the fault has been corrected the drive may
be re-energised using the ON command.
When read, DF reports a 32-bit double word pattern of the form:
*0000_0000_0000_---32 bit wide double word---_0000
Bit No. 1 4 5 8
32
Where a bit is set (displayed as a 1) its bit number can be determined and compared with
the bit number value given in Table 4-6 to determine the Drive Fault being reported.
Use the Read command to display the DF word pattern, that is ‘aR(DF)’.
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68 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Bit
Bit
Tested
Stop
Type
DF Information
Composite fault
1
2
3
4
5
6
7
8
DF 1.1
DF 1.2
DF 1.3
DF 1.4
DF 1.5
DF 1.6
DF 1.7
DF 1.8
K
T
+/-15V supply rail
K
K
R
R
Motor HV under-voltage trip point reached
Motor HV over-voltage trip point reached
CD
K
R
T
Vio over-voltage trip point reached
Encoder / Auxiliary 5V under voltage trip
K
SLEEP Impending power loss, V I/O under voltage
(24V – logic supply)
9
DF 2.1
DF 2.2
DF 2.3
DF 2.4
DF 2.5
DF 2.6
DF 2.7
DF 2.8
DF 3.1
DF 3.2
DF 3.3
DF 3.4
DF 3.5
Reserved
Reserved
10
11
12
13
14
15
16
17
18
19
20
21
CD
CD
CD
K
R
R
R
T
Motor over temperature
Ambient over temperature
Drive over temperature
Incompatible firmware version
Unrecognised power stage
Controller diagnostic failure
Output stage over current
Output driver over current
Tracking limit exceeded : Stall condition
Reserved
K
T
K
T
K
R
R
R
CD
C
CD
K
R
T
Drive disabled – check enable input and state
of ES variable
22-24 DF 3.6/8
25 DF 4.1
26-31 DF 4.4/7
32 DF 4.8
Reserved
Watchdog 1
Reserved
CAN I/O errors
Key:
C : Performs controlled stop.
CD : Controlled stop then de-energise
K : Performs motion kill – quick stop. Possible instant de-energise depending on fault source.
R : Recoverable without power cycle
SLEEP : Drive shuts down completely – no comms, requires power-cycle to recover
T : Terminal (requires power cycle or repair before drive will energise / operate once again)
Table 4-6. Drive Fault Bit Description
See Maintenance & Troubleshooting for a more detailed explanation of Drive Faults.
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4. CONTROL OF VIX DRIVES 69
Drive Fault Byte Reporting
In exactly the same way as the status variable, the drive fault status can be reported a byte
at a time, using DFn within a read command.
User Faults
User faults can be caused by programming errors, such as issuing a GO command when the
drive is de-energised. They are reported in a 32-bit word format the same as Drive Faults.
Performing a read UF command will report the current state of any User Faults listed in
Table 4-7.
Bit Number Bit Tested
UF Information
Value is out of range
1
2
UF 1.1
UF 1.2
UF 1.3
UF 1.4
UF 1.5
UF 1.6
UF 1.7
UF 1.8
UF 2.1
UF 2.2
UF 2.3
UF 2.4
UF 2.5
UF 2.6
UF 2.7
UF 2.8
UF 3.1
UF 3.2
UF 3.3
UF 3.6
UF 3.7
UF 3.8
UF 4.1
UF 4.2
UF 4.3
UF 4.4
UF 4.5/8
Incorrect command syntax
Last label already in use
Label of this name not defined
Missing Z pulse when homing
Homing failed - no signal detected
Home signal too narrow
Drive de-energised
3
4
5
6
7
8
9
Cannot relate END statement to a label
Program memory buffer full*
No more motion profiles available
No more sequence labels available
End of travel limit hit
10
11
12
13
14
15
16
17
18
19
22
23
24
25
26
27
28
29 to 32
Still moving
Deceleration error
Transmit buffer overflow
User program nesting overflow
Cannot use an undefined profile
Drive not ready
Save error
Command not supported by this product
Fieldbus error
Input buffer overflow
Reserved
Command not actioned
Scale distance is non-integer
Reserved
Table 4-7. User Fault Bit Description
*sends an ASCII ‘bell’ character to indicate a buffer overflow condition.
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70 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
User Fault Byte Reporting
In exactly the same way as the status variable, the user fault status can be reported a byte
at a time, using UFn within a read command. For example to read or test the first 8 bits (first
byte) of the UF variable status word, use UF1. Since the status word consists of 4 bytes the
relevant part of the word can be read using UF1 (bits 1 to 8), UF2 (bits 9 to 16), UF3 (bits 17
to 24) or UF4 (bits 25 to 32).
Resetting User Fault Bits
The User Fault variable (UF) is cleared to all zeroes once it has been read by issuing a
R(UF) command. Reading individual bytes of the User Faults variable will not clear any
particular byte, so issuing a R(UF2) command will keep byte 2 bits intact. Also testing a
particular byte using the IF or TR command will keep bits intact.
Note: sending the drive an ON command will immediately clear the User Fault variable, all
bytes will be set to 00000000.
Byte Testing
Remember, the code can be used to test a particular byte of the User Fault word. For
example:
1IF(UF2,<>,10X10X10)
1A500
; if contents of UF2 does not equal 10X10X10 execute
; the next line of code, otherwise skip the next line
; acceleration and deceleration changed to 500rps if
2
; previous test was true
1R(UF2)
*01010101
; read the value of byte 2 of the user fault status word
; contents of byte 2
Note: When UF2 is tested or read it is not cleared to all zeroes.
This example uses a conditional test to compare UF2 with 10X10X10. The use of
conditional tests within IF and TR commands is described in the Conditional Code sub-
section.
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4. CONTROL OF VIX DRIVES 71
Reporting System Information During Code Development
Whilst developing a program using EASI-Tools, it is likely that certain blocks of code when
downloaded to the drive will return an *E error code. To analyse the cause of the error you
can make use of EASI-Tools Status report window which, when read, will report back the
cause of the error. For example, selecting status report ‘User’ following a *E may report
back ‘Label of this name not defined’.
Within EASI-Tools a system variable can be read using the status report window or using the
report command directly from the terminal window (For example 3R(ST)). Using this style of
report an immediate response will be returned which will not be saved within the program
code. If you wish to save the response, use the single byte version of the report command,
that is 3R(ST1), 3R(ST2), 3R(ST3) or 3R(ST4) depending upon which byte of the variable
you wish to capture.
If the indexer is waiting on a trigger command, you can still send an interrogation command
such as 1R(RB), 1R(DF1), 1R(ST1), 1R(UF1), 1IS, 1O, 1A ......and a report will be returned.
However, if a buffered command is sent, such as G or 1A10, then all future interrogation
commands are buffered, apart from 1R(RB), 1R(DF), 1R(ST) and 1R(UF).
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72 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Conditional Code
The flow of a motion control program will depend upon the position of the motor in
combination with the value of particular inputs and commands. System variables are used to
continuously monitor the state of a drive’s indexer and are able to report such things as
‘status of indexing’ or ‘moving’/not moving’ as listed in Table 4-2. Certain system variables
are capable of being tested by the TR (wait for trigger) or IF (test condition)
commands. This allows the value of a system variable to be tested in the following ways:
=
Equals
<>
>
<
Does not equal
Greater than
Less than
The TR command pauses program execution until the required trigger condition is met, while
the IF command tests the value of a system variable and executes the next line of code if it
is true, otherwise it skips the next line of code. Use of these commands allows
synchronisation with external events and program branching.
System variables which may be used in conjunction with the IF command are listed in Table
4-8. Where the variable can also be used with the TR command a ‘Y’ appears in the TR
column.
Variable Name
>
Y
N
N
N
<
Y
N
N
N
=
N
Y
Y
Y
<>
N
Y
TR
Y
Format
decimal
binary
AI
DFn
IN
Analogue input
Drive fault status
Inputs (drive)
Y
Y
Y
binary
INn
Inputs
Y
Y
binary
(expansion)
IP
MV
PA
PE
PF
PI
In position flag
Moving
N
N
Y
Y
Y
Y
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
bit
Y
bit
Position absolute
Position error
Position following
Y*
Y*
Y*
Y*
decimal
decimal
decimal
decimal
Position
Y
incremental
PM
PT
Position master
Position target
Y
Y
N
Y
Y
N
Y*
Y*
Y
Y
Y
Y
Y
Y
N
decimal
decimal
bit
RM
Registration
move
STn
UFn
Status of
indexing
N
N
N
N
Y
Y
Y
Y
Y
N
binary
binary
User program
fault status
* Not recommended during motion
Table 4-8. System Variables that can be used for Conditional Control
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4. CONTROL OF VIX DRIVES 73
Conditional Code Example
The following code is a good example of how the conditional IF statement can be used for
fault diagnosis within the FAULT label.
1FAULT:
1IF(UF2,=,XXXXXX1X)
;define check label
;deceleration error
1”Decel_Err”
1IF(DF1,<>,00000000)
1”Drive_Flt”
1IF(ST1,=,XXXXX1XX)
1”Delay_tout”
;warning of a drive fault
;waiting for a delay timeout
;motor is energised
1IF(ST2,=,1XXXXXXX)
1”Motor_On”
1T1
;wait 1 second
1END
;end of definition
Command Queuing
Command queuing in mode incremental is normally enabled, this means commands are
buffered, each command waiting for the previous command to complete before the next one
is issued. In certain circumstances this sequential operation needs to be disabled, for
example if you need to generate a trigger pulse part way through a move. Normally, the
move would complete before the trigger command is executed, but by disabling command
queuing the trigger command becomes immediate and will operate when the required trigger
conditions are met.
For example, the following code would allow output 1 to signal PA is greater than 10000
before finishing the move.
1MAIN:
;define label
1W(CQ,0)
1G
;enable continuous execution of commands
;go
1TR(PA,>,10000)
1O(1)
;trigger when position absolute becomes greater than 10000
;output 1
1W(CQ,1)
1END
;enable command queuing again
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74 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Motion Control Using the EASI Command Set
Move Types
Mechanical movement results from the motion of a motor shaft. By controlling the velocity,
acceleration, distance and direction of the motor, different move profiles can be created for
particular applications. Move types can be preset, meaning a move is made in a controlled
way over a specified distance, or continuous where only acceleration, velocity and direction
are defined, distance being ignored. Various move types can be selected using the mode
(M) command.
Preset Moves
Preset moves allow you to position a target or work-piece in relation to the motor's previous
stopped position (incremental moves) or in relation to a defined zero reference position
(absolute moves).
Absolute Preset Moves (MA)
An absolute preset move will move the shaft of the motor a specified distance from the
absolute zero position (MA).
Incremental Preset Moves (MI)
When the MODE command is used to select indexed move with incremental positioning (MI),
the motor shaft can be moved a specified distance from its starting position in either a
clockwise (CW) or counter clockwise (CCW) direction.
Note: a positive direction is defined as one resulting in clockwise (CW) rotation of the motor
shaft when viewed from the flange.
Continuous Moves (MC)
This mode is useful for applications which require constant travel of the load, when the motor
must stop after a period of time has elapsed rather than after a fixed distance, or when the
motor must be synchronised to external events such as trigger input signals (MC).
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4. CONTROL OF VIX DRIVES 75
Motor Direction & Positive Motion
A positive direction command usually produces clockwise (CW) rotation of the motor shaft
when viewed from the shaft end*.
However, when limit switches are used it is important that the positive direction produces
motion towards the positive limit switch (see sub-section on HOMING). If this is not the
case, interchange the motor connections to A+ and A- to reverse motor direction.
* In practice this depends on internal motor wiring which varies between motor
manufacturers.
Motion Profiles
In any motion control application the most important requirement is precise, controlled shaft
rotation, whether it be with respect to position, time or velocity. This pattern of movement is
called a Motion Profile. Generally, such a profile can be represented graphically in the form
of a diagram of time or distance moved plotted against velocity. For example, the triangular
shaped profile shown in Figure 4-4 would be obtained if you programmed either a very low
acceleration or a very high velocity or both over a relatively short distance.
Triangular Profile
Velocity
(revs/sec)
2
Vmax
1
Vavg
(= 0.5 Vmax)
0
ta=Accel
td=Decel
0
1
2
3
4
Time, seconds
Figure 4-4. Triangular Profile
2
Setting the acceleration to 1 rev/sec with the velocity set to 5 revs/sec over a distance of
16000 steps (4 revs), a triangular motion profile will result. This is because by the time the
motor shaft has reached a velocity of 2 revs/sec, it will also have travelled half of the defined
2
distance due to the acceleration setting of 1 rev/sec .
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76 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Trapezoidal Profile
A trapezoidal move profile results when the defined velocity, you have programmed, is
attained before the motor shaft has moved half of the specified distance. This is due to a
defined velocity that is low, a defined acceleration that is high, a move distance that is long,
2
or a combination of all three. For example, if the acceleration is set to 10 revs/ sec , velocity
is set to 1 rev/sec, and distance is specified as 20000 steps (5 revs), the resulting motion
profile would look like this:
Velocity
(revs/sec)
1
0
constant velocity
Time, seconds
decelerate
accelerate
0
0.1
5
5.1
Figure 4-5. Trapezoidal Profile
Registration
One of the major uses of registration is for packaging and labelling applications where a
registration mark or label edge is used to sense the position or orientation of an object.
Once detected a registration move can be triggered, which is a separate independent move
that, for example, may position a jar for a labelling operation. The registration move itself
often needs to be performed quickly (faster than the current move, to prevent queuing in
serial batch processes), Figure 4-6 illustrates a typical registration move.
Note: A registration move is always performed in mode incremental, even if the drive is
configured for mode absolute
The REG command once turned ON (1REG1), defines a registration move which can be
superimposed upon a standard move profile. The registration move will only be performed if
a specified input edge is detected on the registration input. If an optional hold-off distance
has been defined the registration command will only respond to a registration input occurring
beyond the hold-off distance. Otherwise, once the basic move had started, any valid
registration input or mark would trigger a registration move immediately. Also, if an optional
registration window has been defined, a registration move can only be triggered if the
registration mark occurs within the registration window.
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4. CONTROL OF VIX DRIVES 77
Once a valid registration mark has been detected the registration move is performed using
the move parameters taken from the previously defined profile* (profile_number in the
command parameters). At the end of the registration move the user program GOSUBs to
the code immediately following the REG label. If no registration mark is detected, the
standard move profile completes and the user program GOSUBs to the code immediately
following the NOREG label.
* Registration will always occur in the current move direction. If the direction in the defined
profile is different to the current move direction, the direction information in the defined profile
is ignored.
An optional output can be programmed to indicate that a move that has been armed is ready
for registration. This would normally be after the move has started or after the hold-off
distance (if defined). The output chosen must be within the range of allowable
outputs (0 to 3). The default value is 0 (no output).
If the REG move must immediately begin to decelerate to achieve the distance programmed,
the REG profile is not configured correctly and the deceleration rate used will not be the
requested rate. In this case, the registration move may appear to be performed, but the
NOREG label is executed.
REGISTRATION MARK
ENCOUNTERED
Fast
status
input
REGISTRATION MOVE
(PROFILE NUMBER)
HOLD OFF DISTANCE
PATH IF NO MARK
VELOCITY
START
REGISTRATION
NOREG
WINDOW
REGISTRATION
REG
DISTANCE
HOLD OFF COMPLETE
Figure 4-6. Registration Move Profile
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78 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
A successful registration will cause the code, following the registration move, to jump to the
REG label, from which normal program operation can continue.
Before you can perform a registration move, the following code elements must be in place:
1. Enable the registration function.
2. Completely specify the registration move required, in terms of distance, velocity,
acceleration and deceleration.
Once a registration move has been defined, registration can be enabled/disabled using
aREG1 (to turn it ON) or aREG0 (to turn it OFF), where ‘a’ defines the axis address.
When registration is enabled, any valid input edge will activate the registration move (whilst
moving), however once activated any subsequent edge will have no effect. Consequently
once the registration signal has been accepted for the current move all other registration
signals will be ignored until a new move has been started.
An example of registration code is given below:
1START:
;start label definition
1PROFILE4(10,10,40000,5)
1PROFILE5(20,20,10000,10)
1REG1(1,5,5000)
;define move parameters
;define move parameters
;define registration move parameters & arm registration
1USE(4)
1G
;use motion profile 4
;execute move
1END
;end of start label
1REG:
1O(XX1)
1T0.5
1O(XX0)
1END
;on reg mark valid turn on o/p 3 (batch counter)
;wait for 500ms delay
;turn off o/p 3
;end of label definition
1NOREG:
1O(X1X)
1T0.25
1O(X0X)
1END
;if reg mark not valid/seen
;turn on o/p 2
;wait for 250ms delay
;turn off o/p 2
;end of label definition
Run the above by typing 1GOTO(START)
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4. CONTROL OF VIX DRIVES 79
Homing
The term ‘homing’ refers to an automatic return to a mechanical reference position which is
usually performed when the system is first powered up. All subsequent moves will then be
relative to this reference position. The home position is usually determined by an optical or
proximity switch, though a mechanical switch can also be used.
Definition Of Terms
To aid the description of homing operations the following terms are defined:
Positive motion - is motion towards the positive limit
Home switch positive edge - is the edge of the home switch on the positive limit side
Home switch negative edge - is the edge of the home switch on the negative limit side
Home switch operating range - is the distance moved whilst the switch is operated
Four of these terms are illustrated in Figure 4-7.
NEGATIVE
LIMIT
POSITIVE
LIMIT
HOME SWITCH
OPERATING RANGE
Positive
edge
+CW
Negative
POSITIVE
MOTION
edge
-CCW
DISTANCE
Figure 4-7. Home Switch Operation
Switch Considerations
Any type of switch will have an operating range that may correspond with a significant
motion of the motor shaft, depending upon the gear ratio between motor and load.
Consequently, just detecting the home switch voltage level will not give a well defined home
position. To improve the accuracy it is possible to stop on either the positive or negative
edge of the home switch.
Switches generally exhibit a hysteresis characteristic when operated from opposite
directions, therefore homing moves always make the final approach to the home switch from
the same direction.
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80 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Homing Configuration Command
The command allows you to define the mechanical edge of the home switch at which you
wish home to be. The command also allows you a choice of home switch type, that is
normally closed or normally open, however if you change the switch type this does not
change the edge you are homing to. Remember the positive edge is the mechanical edge of
the home switch closest to the positive limit.
Other features of the HOME configuration command allow adjustment of the search speed
and direction, the acceleration or deceleration rate to be used and mode selection. When
setting the deceleration rate you must ensure sufficient distance is left between the home
switch and any limit to make sure motion is brought to a halt after the home switch is
detected and before a limit is reached. If not, the system will be brought to an immediate
halt as soon as the limit is detected.
Mode Selection
Mode selection allows you the choice of how and where motion is brought to a stop within
the home switch operating range. The choices are:
• Mode 0 - the indexer will detect the first edge (positive or negative) and will then
decelerate to rest within the home switch operating range
• Mode 1 - will cause motion to stop at the mechanical edge of your choice (positive or
negative)
• Mode 2 – reserved
• Mode 3 – If an encoder with a Z channel is used then the controller will seek the Z
position after detecting the specified home switch edge.
• Mode 4 – If an encoder with a Z channel is used then the controller will seek the Z
position without the need for a home switch.
Mode 0 operation simply returns the motor to its home position at some point between the
negative edge and positive edge of the home switch. Apart from knowing which edge of the
switch was used the exact position within the home switch range is undefined. A more
precise home position can be obtained by using mode 1.
Mode 1 allows the home position to be defined as either the positive or negative edge of the
home switch. Note, although mode 1 fixes the home position at one of two edges the
precise position is still subject to the repeatability of the home switch itself. Practical
applications will exhibit variations in switch performance and consequently the home position
will still be subject to variation by a small number of motor steps.
Mode 2 Reserved.
Modes 3 & 4 for use with Z channel encoders.
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4. CONTROL OF VIX DRIVES 81
Go Home Command
The go home command (GH) is used to return to the reference home position. Issuing a GH
command will cause motion in a direction defined by the HOME configuration command.
Figure 4-8 shows the path taken if motion was started between the positive edge of the
home switch and the positive limit (positive side of home). The dotted line represents
positive movement and the solid line negative, although once past the positive edge of the
home switch both merge to follow one common path. Positive movement results in motion
towards the positive limit, once the limit is hit motion is reversed* and finally heads for the
home switch. Negative motion will immediately head for the home switch.
*Note: Limit inputs must be enabled to allow a move to bounce off a limit.
Assuming home is the positive edge of the home switch, as soon as the edge is detected
motion is decelerated to a stop. Direction of travel is reversed and a distance is calculated to
move just outside the positive edge of the home switch. This new move is performed in a
positive direction. Again motion is stopped, and the direction of travel is reversed and a
negative approach is made at a fixed velocity determined by system variable HF. As soon
as the positive edge is again detected the motor is stopped.
Note: If the deceleration rate is set too low, the home switch operating range could be
travelled through before motion is brought to a stop. If this happens, a warning ‘home switch
too narrow’ will be reported, but homing will continue from the other side of the home switch
operating range.
HOME SWITCH
Positive
edge
OPERATING
RANGE
GH positive
GH negative
POSITIVE
LIMIT
GH
GH
HFrps
Start (from positive
side of home)
Finish
Figure 4-8. Go Home to Positive Edge
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82 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
If the negative edge of the home switch is selected in the homing configuration command a
similar motion path would be followed, but finishing on the other side of the home switch, as
shown in Figure 4-9.
HOME SWITCH
OPERATING
RANGE
Negative
edge
Positive
edge
GH positive
GH negative
POSITIVE
LIMIT
GH
GH
HFrps
Start (from positive
side of home)
Finish
Figure 4-9. Go Home to Negative Edge
Motion starting on the negative side of the home switch will behave in a similar way, the only
difference being the direction of travel. If the drive was started up already within the
boundaries of the home switch and a go home command was given for a particular edge the
motion would follow the path shown in Figure 4-10, depending upon which edge was
requested. In this situation the home position is known so the indexer knows in which
direction to travel to seek the appropriate edge. In Figure 4-10 acceleration and deceleration
are set to the same value.
HOME SWITCH
OPERATING
RANGE
Negative
edge
Positive
edge
HFrps
HFrps
Finish
Finish
Start
Figure 4-10. Go Home Starting from Home
Note: If the home configuration command is set to mode 0 and the home switch is already in
its active range, no movement will take place.
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4. CONTROL OF VIX DRIVES 83
Final Direction of Travel
Note that no matter where motion starts from, that is from positive side of the home switch, in
the home switch region or from the negative side of the home switch, or in which direction it
goes from its starting point (positive or negative), its final direction of travel towards a
nominated home switch edge is always the same. Direction of travel towards the positive
edge of the home switch is always negative and the direction towards the negative edge of
the home switch is always positive. This minimises variations in the home switch operating
point between separate homing moves.
Example of Homing (Datum) Routine
1START:
; start label definition
1DECLARE(MOVE3)
1LIMITS(0,1,0)
1HOME1(+,1,-15,100,1)
1GOTO(MOVE3)
1END
; declare label
; configure limits (enabled, normally closed, stop when hit).
; configure the home parameters
; transfer to label move 3
; end of label definition
1MOVE3:
1O(0)
1GH
1O(1)
1A100
1V25
; define program label move 3
; turn off o/p 1
; execute the go home move
; turn on o/p 1 after go home complete
2
; set acceleration to 100rps
; set velocity to 25 rps
; distance to 1 motor rev
; execute move
1D4000
1G
1END
; end of program move 3 definition
Interaction Between Homing and Limits
In certain applications a limit switch may be used to define the home position, in which case
one switch can be used for both a limit and the home position. This requires the
consideration of two possible situations:
1. Where home and limit switches are wired separately
2. Where home and one of the limit switches are shared
In the first case, where home and limit are wired separately, the following interactions are
possible:
When the load is already on a limit and it is commanded to go home, the initial direction of
motion will be away from the limit and this may not be the direction set in the HOME
command.
If a limit is enabled and hit whilst going home, direction of travel will be reversed (bounce off
a limit) and motion will continue until the home position is reached. If a second limit is hit or
the first limit is hit for the second time, the user fault ‘homing failed’ will be set and the
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84 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
system will respond as if a limit has been hit in the ‘normal’ manner, that is, whilst not
performing a homing move.
In the second case, where home and limit are wired together, the following interaction is
possible:
If the load is commanded to go home in a direction away from the home switch and hits a
limit, then the move will be automatically started in the opposite direction. When the load
reaches the combined limit/home switch, the home function will terminate in the normal
manner.
Limits
End-of-travel limits are used to restrict the movement of the load to a safe operating
distance. The placement of limit switches defines the direction of motion, since positive
motion is always regarded as moving towards the positive limit.
Two of the drive’s user inputs (I/O 4 & 5) can become dedicated limit inputs (negative and
positive) when enabled by the LIMITS command. From start-up, both limits are enabled
(default setting) and can only be disabled by issuing a disable limits command. For fail-safe
operation the limit switches must be normally closed, although this can be re-configured
within the LIMITS command.
Limit Switch Placement
Limit switches need to be placed such that when a limit switch is hit sufficient travel is still left
for the load to be decelerated to a stop before hitting the hardware limit or end stop. Hitting
a limit is defined as changing the state of a limit switch when that limit is enabled and the
direction of motion is appropriate, that is, you would only expect to hit the positive limit switch
when travelling in the positive direction.
Hitting a Limit
When a limit is hit, an error signal is generated (*E), the user fault bit ‘end of travel limit hit’ is
set and the status bit ‘+limit’ or ‘-limit seen during last move’ is set. Motion decelerates at the
rate set in the LIMIT command, which needs to bring motion to a stop before any hardware
limit is reached. If motion is requested whilst the load is already on the limit no motion will
take place and the drive will respond as if the limit had just been hit, although no
deceleration will take place.
A fault label can be made to run once a limit is hit, subject to the following conditions:
• No fault label is already running
• ARM command is armed and has the fault label enabled (ARMX1)
• Within the LIMIT command the mode is set to ‘Stop motion when a limit is hit and abort
program’
• A fault label has been defined
If no fault label is defined, or fault is not armed (within the main ARM), the program will be
aborted, that is motion will be stopped at limit deceleration, the program is halted and all
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4. CONTROL OF VIX DRIVES 85
associated flags are cleared. The program will also be aborted if you are already on a limit
and you request motion in a direction which takes you further on to that limit.
If the LIMIT command has been set to ‘stop motion when a limit is hit but continue the
program’ and you hit a limit or request motion in a direction which takes you further on to a
limit no response will be given, apart from a possible *E (depending upon the setting of the
EX variable). In this situation, program execution will continue and no fault label will be run.
This allows the limit switch to be used as both a limit and home switch.
Hitting Both Limits
If both limits are hit motion will be stopped and the drive will respond as if a single limit has
been hit, but no further motion will be possible until both limits have been cleared. The
status will report which limit was seen first (positive or negative), but if both were hit in the
same millisecond period, the positive limit will be reported as being ‘seen’ first.
Clearing a Limit
A limit is cleared as soon as a motion command is given that moves the load away from the
limit, that is, in the opposite direction to which the limit was originally hit. Once a limit has
been cleared and the limit switch has returned to its normal state (closed or open contacts)
movement can be commanded in either direction.
Following and Limits
The way the drive reacts to hitting a limit while following depends upon the setting of the
FOLLOW mode parameter.
In encoder following mode (E), it is possible to re-enable following on a limit and reverse off
the limit. The drive will prevent motion further onto the limit while allowing motion off the
limit.
In all cases, the recommended action when a limit is hit during following, is for the
application to perform an indexed move to a position between the +ve and –ve end of
travel limits, before re-enabling following.
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86 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Limit Switches
The drive has two limit inputs, the positive limit input and the negative limit input. When
wiring the limit switches it is essential to check that a positive direction command produces
motion towards the positive limit switch. If this is not the case, interchange the motor
connections to A+ and A- to reverse the motor direction.
+24V
NC NEGATIVE
LIMIT
NC POSITIVE
LIMIT
Positive limit input
Negative limit input
POSITIVE
MOTION
Figure 4-11. Limit and Stop Switch Configuration
If a faulty limit switch, or some other fault caused the indexer to sense both limits becoming
active at the same time all motion would be stopped.
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4. CONTROL OF VIX DRIVES 87
Using Closed Loop Operation
Closed loop refers to the operation of a stepper motor/drive where the position of the stepper
motor shaft is measured and compared with the commanded position. This is normally
arranged using an encoder attached to the motor’s shaft and electrically connected to the
stepper drive’s encoder input, as shown in Figure 4-12.
Stepper drive
Position
demand
Stepper motor
Encoder
Coupling
Figure 4-12. Closed Loop Operation
Closed loop operation is normally used in applications where a motor stall must be detected
(stall detect) or where a known position of the motor shaft must be maintained within known
limits (position maintenance).
Encoder Setup
To operate in closed-loop mode a motor- or load-mounted encoder must be connected to the
primary encoder input X2 and firmly attached to the motor shaft.
When using a motor mounted encoder set motor resolution in the MOTOR command equal
to the post-quadrature encoder counts per rev. See Scaling at the end of this section.
When using a load mounted encoder set the system variable EM equal to the post-
quadrature encoder counts per rev. See Scaling at the end of this section.
With LOADENC on (load-mounted encoder), distance is commanded in load encoder steps.
With LOADENC off (motor-mounted encoder) distance is commanded in motor encoder
steps.
Note: Post quadrature resolution is a hardware technique for increasing encoder resolution
by a factor of 4, consequently an encoder with a 250 line count will have 1000 counts per
revolution.
For a correctly connected system, entering a positive distance value should cause the motor
shaft to rotate in a CW (Clock Wise) direction when viewed from the shaft end and should
cause the encoder count to increase in a positive direction. The encoder can be checked by
entering a positive distance value (D) and noting the direction travelled by the motor shaft.
Then de-energise the motor (using the OFF command) and read the current encoder
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88 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
position using the 1R(PA) command. Now, rotate the encoder shaft in the same positive
direction by about half a turn. Again read the encoder position, which should be greater than
the first reading, indicating that the encoder count is increasing for positive motion. If the
second count is less than the first, cross over the A- and A+ signals on the encoder
connector, and repeat the test until an increasing count is obtained. Encoder signal A
should lead B for positive motion.
Note for a load mounted encoder, that is with LOADENC enabled, the system variable EM
may be set to a negative value as an alternative to crossing over A- and A+ signals on the
encoder connections.
Position Maintenance
Position Maintenance is a method of correcting occasional position errors by adding or
subtracting motor steps once a move has been completed. It is not like a servo loop in
which position error corrections are made throughout the entire move.
To be able to make use of Position Maintenance a drive system needs to be fitted with a
load or motor mounted encoder. The drive’s controller will detect the difference between the
number of steps the motor was commanded to move and the number of steps actually being
reported by the encoder. This resultant position error is used, at the end of a move, to
further command the motor in a direction to give the correct target encoder position, as
shown in Figure 4-13.
Settle
Settle
IT time
IT time
Velocity
Position
maintenance
move
(revs/sec)
main move
Time
0
Target
1
MV
0
1
IP
0
1
OUTPUT
0
Figure 4-13. Position Maintenance Move Profile
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4. CONTROL OF VIX DRIVES 89
At the end of the main move the controller waits until the in position time delay and the settle
time (if programmed) have timed out, at this point the encoder count is read. A calculation is
performed which compares the encoder count with the target position, if the difference
between these two readings is less than the defined dead-band then the move is complete
and the next user program command is executed. If the two readings differ by an amount
greater than the dead-band then position maintenance is used to correct the move error.
Assuming the motor has not quite reached the target position and that position maintenance
is required, the difference between the target position and the encoder count will be the
number of steps yet to be moved. The indexer will automatically apply a correction move,
based upon the number of steps yet to be moved, and will then, after the appropriate delays,
re-read the encoder count. Once again a comparison is made between the encoder count
and target position and the whole process is repeated, depending upon the result of the
comparison.
Dead Band Range
With Position Maintenance enabled, if you command the motor to move one revolution, at
the end of the move you would expect the encoder count to read the encoder resolution. In
practice, mechanical alignment errors and lost motion within the system will usually result in
a small offset existing between commanded motor steps and the encoder reading. To take
account of this offset an error band is defined, known as the Dead Band Range. It has a
range of 0 to 32767 encoder counts and a default value of 10. The number of counts
entered must be positive, but the range will check the number of counts on both positive and
negative sides of the target position. Position maintenance will have deemed to be
successful if the final correction move positions the motor within the dead band range.
Note: the value entered must be in load-mounted encoder steps if LOADENC is enabled,
otherwise it is entered in motor-mounted encoder steps.
Output
An optional output can be used to signal when position maintenance is enabled and the
motor is in position. In position is defined as not moving whilst positioned within the dead
band range. See the note at the end of the example.
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90 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Settle Time
When Position Maintenance is enabled all moves will track actual position against
commanded position. Position Maintenance allows the in-position signal to be held off for a
settle-time, the value of which can be programmed in the command parameters.
Speed Of Correction
Once a move has been completed and the controller decides position maintenance
correction is required, it will move the motor at a fixed speed of 1rps.
Example of Position Maintenance
The following code illustrates how position maintenance is implemented. The example is
based upon a motor resolution of 4000 steps per rev and a 1000 line encoder giving 4000
counts per rev.
1DECLARE(TRIAL)
1MOTOR(X,X,4000,X,X,X,X)
;X is set depending upon the application
1TRIAL:
1ON
1R(EI)
1POSMAIN0(20,3,0)
; check encoder is set to quadrature operation
; set-up position maintenance, dead band of 20 encoder
steps, output 3 to be used, no programmed settle time
; program distance, 10 revs
1D40000
1V5
; set velocity to 5 rev/s
1A10
; set acceleration to 10 rev/s/s
1POSMAIN1
1POSMAIN
1W(PA,0)
1G
1R(PA)
1END
; enable position maintenance
; check status of command
; set absolute position to zero
; start the move, motor turns 10 revs
; read position
Following the G command the system will attempt to correct any final position error at the
end of the move.
Note: When the command is armed output 3 will come on with the motor in position and
stationary. When the G command is given output 3 will turn off until the motor is back in
position within the dead band.
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4. CONTROL OF VIX DRIVES 91
Stall Detection
Stall detection is only possible if an encoder is fitted to the motor or load. A stall is reported
when the error between the commanded position and the actual position, determined by the
encoder, exceeds the value set in the error window of the STALL command.
Stall Detection Set-up
A stall condition is signalled when the number of expected stall-encoder steps does not
match the number of steps received. During a move the indexer constantly monitors any
build-up of stall error, and once the difference exceeds a programmed error window, a stall
condition is reported. Note, the stall error count is reset following an ON, STALL, GH or G
command.
Set system variable EM to equal the number of stall encoder counts per rev. This allows the
use of a low resolution stall-detect encoder without effecting the motor positioning resolution
(as set in the motor command). However, if LOADENC is enabled the positioning resolution
is now determined by EM as distance is commanded in stall encoder steps.
The error window size needs to be large enough to detect a single de-synchronisation of the
motor which is the equivalent of one rotor tooth or 4 full steps (7.2 degrees). Allowing for the
normal lag and lead occurring during acceleration and deceleration, of up to 3.6 degrees, an
overall error window of 5 degrees should be set - 14 steps with a 250-line encoder. The
error window is measured in motor steps with LOADENC and SCALE disabled, load steps
with LOADENC enabled, and user steps with SCALE enabled.
Fault on Stall
When STALL is enabled (on/off parameter set to a 1), and mode is set to 1 (run fault) motion
is stopped if the error between the commanded position and the actual position exceeds the
error window value. If a fault label is defined for this condition a fault will be reported and
can be identified by reading the status bits.
Output
Any one of the drive’s outputs 1 to 3 can be turned ON when a stall condition is detected.
This command option allows a stall to be signalled externally by lighting a lamp or LED.
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92 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Scaling
Using scale allows ‘user-friendly’ settings of distance, velocity and acceleration to be defined
in user units, rather than units required by the drive. For example, using a ViXIM to control a
linear table, it is possible to program distance units directly in mm, velocity in mm per second
-1
-2
(mms ) and acceleration in mm per second/per second (mms ). This is made possible by
measuring one user unit in terms of the number of positional feedback encoder steps. This
measure of Position Encoder/Motor steps per (user) Unit is termed the PEU parameter. For
example, a linear table with base units of 1mm and having an encoder that gives 1 count
every 5µm of travel, results in a PEU of (1mm/5µm) = 200 (PEU must be => 1).
The PEU value is used with the SCALE command and once a PEU value is set this will
determine the units in which acceleration, distance and velocity are measured. In this case,
-2
a base unit of 1mm was chosen, consequently acceleration is measured as 1mm s ,
-1
velocity as 1mm s and distance in mm.
Individual scaled values of acceleration, distance and velocity can be set using:
SCLA
SCLD
SCLV
SCaLe Acceleration factor
SCaLe Distance factor
SCaLe Velocity factor
For example, to work with distance set in increments of 0.1mm set SCLD as
(base unit)/(desired unit) = 1 mm/0.1 mm = 10. This will require the SCALE command to
take the form:
SCALE1(1,10,1,200)
For more information see the SCALE command.
A, D and V do not have to be in the same units, any combination of units is possible, but
PEU divided by SCLD must result in an integer. This is because the distance moved
requires the following calculation:
D * (PEU/SCLD) steps, which could result in a fractional number of encoder steps that
cannot be resolved by the drive.
Once defined using the SCALE settings command, an application can be simply
programmed in user units, without needing to calculate what units the drive requires.
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4. CONTROL OF VIX DRIVES 93
You can use SCALE in combination with other commands such as LOADENC, STALL or
POSMAIN. The exact mix of commands together with the source of the feedback, and the
type of programming steps used are presented in Table 4-9. In the command columns
0 = disabled and 1 = enabled. In the feedback source column Motor = motor-mounted
encoder steps, Load = load-mounted encoder steps and X = invalid combination. In the
command steps column (the steps used to program the application e.g. distance D) Motor =
motor steps (1 rev = motor resolution), Load = load steps (1 rev = load resolution EM) and
User = user steps with X representing an invalid combination.
SCALE LOADENC
STALL POSMAIN Feedback Command
source
Motor
Motor
Motor
Motor
X
steps
Motor
Motor
Motor
Motor
X
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Load
X
Load
X
Load
Motor
Motor
Motor
Motor
X
Load
X
Load
Load
User
User
User
User
X
User
X
User
Table 4-9. Distance Units for Enabled Commands
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5. EASI-V SOFTWARE 95
5. Easi-V Software
Computer Requirements
To be able to run Easi-V software, necessary for the control and programming of the ViX,
you will require an IBM™ compatible PC running Windows 95/98/2000/XP™, NT4 or ME.
The PC needs to be specified to run Windows™ with at least 16MB of RAM, a VGA monitor,
Windows™ compatible mouse, CDROM drive. The installed program size is approximately
1.3MB. Easi-V is supplied on a CD or may be downloaded free of charge from our Website
(www.parker-eme.com).
Serial Link Lead
You will need a 2-wire plus ground lead which has the Rx and Tx wires crossed over.
Wiring details are given in the Electrical Installation section.
Note: The information contained within this section applies to Easi-V software version 2.0 or
greater. If you have an earlier version of Easi-V software please request the latest version
from Parker using the contact numbers given at the beginning of this user guide or
download a copy from our web-site
(www.parker-eme.com).
Establish Communications
Before attempting communication with the drive the supplied software needs to be installed
on to the PC’s internal hard disk drive. Once software installation is complete, commands
can be downloaded from the PC to the drive to confirm its operation. If Easi-V has already
been loaded you may skip the following Installation and Operation sections up to
Confirming Drive Operation.
Compatibility of EASIV
Always use the latest version of Easi-V, available from our web-site or supplied with the
product.
Software Installation
Before attempting to install the EASI-V software supplied with your drive check that your PC
meets the requirements previously defined under Computer Requirements.
Easi-V software is supplied on a CDROM or can be downloaded from the Parker website
and installs in the usual manner common to Window™ applications.
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96 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Installation Procedure
This procedure takes you quickly through the steps necessary to install Easi-V on your PC.
The entire installation process takes less than 10 minutes. Before starting the installation,
terminate all applications currently running.
A step by step installation of Easi-V software follows:
1. Place the Easi-V CD in your PC’s CDROM drive.
2. Once loaded the CD should auto-start. If this does not happen, open the CD’s
folder and double-click the VIX.exe icon.
3. Follow the on-screen instructions to load Easi-V.
4. The screen will display the Easi-V program banner and will prepare an installation
setup program.
5. The banner screen is automatically replaced by a Welcome dialogue box advising
you of the need to exit any programs currently running. To abandon setup in order to
exit other programs, select CANCEL. This in turn displays an Exit Setup dialogue box
giving you the options of Exit Setup, which returns you to Windows™ or Resume
which takes you back to the Welcome box.
6. Selecting NEXT> displays a ‘Choose Destination Location’ dialogue/selection box
that provides the option of installing EASI-V in the directory of your choice. The
default directory is c:\program files\parker\easi-v in the UK, but the exact path name
is country dependent, other buttons are described within the dialogue box, see Figure
5-1.
Figure 5-1. Choosing Where to Install Easi-V
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5. EASI-V SOFTWARE 97
6. Once you have selected a destination for Easi-V or have decided to use the
default directory, select NEXT to begin file transfer.
7. Once Easi-V has been loaded, the screen will display a message dialogue box,
stating ‘Setup is complete. You may run the installed program by double-clicking on
the program icon.’ When you click the OK button, the window shown in Figure 5-2 will
appear. Note: Easi-V may also be run from the Start menu.
Figure 5-2. Easi-V Application Window
Uninstalling Easi-V
To uninstall Easi-V software, use Windows™ uninstall software facilities available within the
Control Panel. All components are removed.
Software Operation
Once installed, Easi-V can be started from the start menu or by double clicking its application
icon. At startup Easi-V displays the product selection screen shown in Figure 5-3. Select
the micro-stepping drive, either with or without CANopen.
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98 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Figure 5-3. Easi-V Product Selection
Selecting Product from the Utilities menu will also display the product selection screen.
Selecting OK will display the main application window, entitled
‘Parker Hannifin EMD – Easi-V’, and seven pull-down menus become available:
File, Edit, Search, Terminal, Utilities, Windows, Help
The majority of options available within each menu are familiar to Window™ users and will
not be fully described here, but options available within Terminal and Utilities are specific to
drive control and will be fully described.
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5. EASI-V SOFTWARE 99
Menu Overview
File
Filing Operations
Creates a new editor file, or .prg program file
Opens an existing editor file or program
Save an editor file
Save an editor file specifing the file name
Print the editor file or contents of terminal buffer
Close current active window
Exit Easi-V
Editing Operations
Edit
Undo a previous edit (1 level of undo only)
Remove highlighted text to clipboard
Copy highlighted text to clipboard
Paste contents of clipboard to current cursor location
Delete highlighted text
Highlight all text in active editor file window
Go to a particular line within a file*
Editor search & replace operations
Search
Find specified text (top down from cursor position)
Repeat search again
Find and replace text (top down from cursor position)
* Selecting ‘Go to line’ from the edit menu will generate
the following dialogue box, which allows the required line
number to be entered. This is useful for locating errors
when loading a program.
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100 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Terminal on-line operations
Terminal
Configure the serial communications
Open/close the terminal (after testing the connection)
Configure test buttons
Edit buffer Create an editor file window or terminal buffer
Log to file Open/close file logging terminal buffer actions
Specific tools
Utilities
Displays Product Selection screen
Help screens guide you through drive setup
Similar to above, but uses tabbed text boxes
Display status bits or messages
Download program to drive F4 Download program
Upload program
Displays LED diagnostics sheet, colour & flash rate
This provides a variety of tools documented below.
Window controls
Windows
Share program desktop space between open windows
Cascade all open windows on program desktop
Select/activate the next window
Arrange all minimised windows on program desktop
Close all active windows on program desktop
Program help facilities
Help
Open help file at the main contents (start)
Prompt for topic string and search help file
Open help for individual EASI-V commands
Visit Parker web-site
E-mail Parker technical support
E-mail Parker sales support
EASI-V version number and copyright
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5. EASI-V SOFTWARE 101
Utilities Menu Options
Selecting Options displays a single screen with three tabs:
• General
• Drive settings
• Country
Use General to select the following set-up options:
• Prompt to save terminal emulator contents on closure
• Test communications before upload/download of programs
• Display 3 rows of buttons in terminal window
Use Drive settings allows the following selection:
• Automatically upload parameters on address change
Use Country to select your preferred Parker contact:
• Germany
• Italy
• United Kingdom
• USA
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102 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Terminal Menu Selections
Terminal menu selections control the setup and configuration of communication between a
PC and drive.
Communicating with a Drive
The default settings of a new drive from power-up are RS232 communications with an
address setting of #1. Wire the RS232 communication lead as described in the Electrical
Installation section.
WARNING
To avoid causing damage to a PC serial port the drive must be earthed before making
any serial connections.
Connect the RS232 lead between the drive’s X3 socket and the controlling PC’s RS232
connector.
Configure the serial communications
From the Terminal menu choose Settings
to display the following Communications
port configuration dialogue box.
The default settings used are:
Port
COM1
BAUD rate
Options
9600
Auto wrap
Figure 5-4. Comms Port Configuration
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5. EASI-V SOFTWARE 103
Select the required configuration and, click OK. Then, again from the Terminal menu select
Connect to start communications. Every time Connect is issued the communications link is
tested to establish it is working correctly and the message box ‘Testing communications
integrity’ is flashed on the screen, followed by ‘Now on-line to controller’ if the Connect is
successfully made. If the link fails, refer to the Troubleshooting Section. Note: The baud
rate selected must agree with the drive’s hardware selected value.
You are now ready to start creating and editing program (.prg) files to control the operation of
a connected drive. A number of example files are included within the Easi-V installation
package to give you a start with drive programming.
Configure Terminal Buttons
The Terminal menu has a ‘Configure terminal buttons F2’ command which generates the
window shown in Figure 5-5.
Figure 5-5. Configure Terminal Buttons Window
Defines the function of the buttons at the base of the Terminal window and assigns a
keyboard shortcut to each button, depending upon where it appears in the list order. This
facility enables a group of commonly used commands to be sent to a drive(s) by clicking a
single button in the Terminal window or pressing a Shift/Function key combination from the
keyboard.
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104 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Utilities Menu Selections
Utilities menu selections control the way drives are setup and configured for use with a
particular motor type. The menu offers two levels of setup, depending upon the skill and
experience of the operator.
• Guided drive setup (guides you through setup for a particular motor type – quick and
simple)
• Drive setup (allows text entry of motor parameters – for experienced users)
From the Utilities menu select ‘Guided drive setup’.
Select the axis
address of the drive
to be initialised.
Press ‘Next’ to
select the required
motor type.
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5. EASI-V SOFTWARE 105
From the drop-
down menu select
your motor type or
perform a custom
set-up.
Press ‘Next’ to
select Motor
Standby current
and In-position
settling Time
values.
This screen allows
the selection of the
motor standby
current (MS) and
the In-position
settling time (IT).
Press ‘Next’ to
allow selection of
stall detection
and/or position
maintenance.
Selecting Set Mode Position jumps forward to guided screen 8.
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106 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Encoder feedback
must be selected to
allow stall detection
or position
maintenance.
Press ‘Next’ to
select the required
limits.
This screen allows
the selection of the
+ & - limits and the
type of limit switch
used. You may
also control the limit
mode and the
deceleration value
used to bring
movement to a
stop.
Press ‘Next’ to
configure the home
switch setting.
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5. EASI-V SOFTWARE 107
This screen allows
the configuration of
the home switch.
Press ‘Next’ to
configure the drive’s
user inputs and
outputs.
Configure the
drive’s user inputs
and outputs and
setup the following
encoder inputs or
the simulated
encoder outputs.
Press ‘Next’ to
configure the drive’s
general settings.
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108 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
This screen allows
the setup of all the
drive’s controls not
available on other
screens.
Press ‘Next’ to
complete the setup
process and to
generate a setup
program.
This screen signals
the end of the
guided setup
process.
Checking the ‘Append a test routine’ box will include a simple routine that turns the motor
shaft to verify drive operation. To alter any configuration set-up step backwards using the
‘Back’ button.
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5. EASI-V SOFTWARE 109
NOTE
ANY CHANGES TO THE MOTOR TYPE NUMBER MUST BE FOLLOWED BY A SAVE
(SV) AND RESET (Z) OR CYCLING POWER TO THE DRIVE.
TIP
Create a setup program first, rather than download immediately, because if changes are
required it’s easier to edit a saved program.
CANopen Drives
If you are setting up
a CANopen drive
an extra screen is
included (8 of 10)
that allows
adjustment of the
baud rate, node ID
and control setting.
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110 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Drive settings / Setup
This facility gives easy access to setting system variables in a more direct manner than
Guided Drive Setup. Figure 5-6 shows a sample screen.
Figure 5-6. Axis Setup Tab
The buttons displayed along the base of this screen can be used as follows:
Upload retrieves the current settings for the selected axis
Download updates the current axis with your latest changes
Open opens a stored .cfg file
Save save the file to disk as a .cfg file
Print prints the value of all the settings of all the tabs
Done closes the set-up window
Help accesses the help file
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5. EASI-V SOFTWARE 111
Status
The Utilities menu axis Status provides a convenient method of examining the double word
status bits. The tool gives access to the status of User Faults, Status bits and Drive Faults
using a series of tabs, as shown in Figure 5-7.
Figure 5-7. Status Reporting
The Status Report can be permanently displayed during program development or testing to
monitor the operation of the drive. The double word status bits are decoded and displayed
as text messages within the Status Report window, as shown in Figure 5-8. This eliminates
manual decoding errors and gives an immediate update of the drive’s status.
Figure 5-8. Reporting Status of Drive
Read
The Read button is used to update all of the Status Reports and is a useful aid when
debugging an application.
Previous
Selecting Previous allows the previous status to be re-displayed - useful for comparing the
results of programming actions. The Previous reading is only stored to a depth of one, that
is, you cannot trace the history of status bits by continually selecting the button.
Close
Selecting Close will exit the Status Report window.
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112 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Downloading and Uploading Programs
A drive program that exists within an active edit window can be downloaded to the drive by
selecting Download from the Utilities menu. Following the usual communication checks, the
program will download to the drive’s internal memory. Function key F4 provides a shortcut
download.
Figure 5-9. Download a program to the drive
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5. EASI-V SOFTWARE 113
A program may also be uploaded from a drive, a useful facility if a drive needs to be
swapped between axes. To upload a program select Upload from the Utilities menu. An
upload dialogue box will be displayed, allowing you to specify the name and address of the
program to be uploaded. A shortcut upload is provided by function key F5.
Figure 5-10. Upload Dialogue Box
If you receive an error message during program upload refer to the Troubleshooting Section.
Help
EASI-TOOLS has extensive on-line help facilities, which allows you to search for help on a
particular topic either within the main contents or by entering a topic string. All the
commands listed within this user guide are available on-line by selecting Controller
Commands from the Help menu.
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114 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Confirming Drive Operation
With the drive and motor correctly wired and the serial connection made to a PC running
Easi-V software, the operation of a drive may be confirmed by creating and downloading the
following code:
Before running this code return the drive to its factory settings and save those settings – see
returning a drive to its factory settings in Maintenance & Troubleshooting section.
*Define motor using MOTOR command*
1START:
1ON
; define start label code
; enable the drive
1LIMITS(3,0,0)
1D4000
1V1
1A10
1G
; disable limits
; set distance to 4000 steps
; set velocity to 1rev/s
; set acceleration to 10rev/s
; start motion
2
1END
1GOTO(START)
; end definition of start block
; execute start code block
WARNING
Clamp the motor in a secure position before testing the drive.
Upon execution of this code, the motor should perform 4000 steps and stop. The successful
operation of this code confirms the drive is working correctly. If this does not happen, refer
to the Troubleshooting Section.
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6. COMMAND REFERENCE 115
6. Command Reference
Command Description
Each command has a simple 1 to 7 character name usually an abbreviation of its full
descriptive title. Listed commands are in alphabetic order with any non-alphabetic symbols
appearing last.
Each individual description will include a one-line header giving the abbreviated name
followed by its full name. The following lines give the command syntax, units of
measurement, range of values, any default value and a reference to other related
commands. Where commands contain a list of parameters, a simple layout displays only the
syntax of the command.
Every command requires an address. Where several drives need to respond to a
common set of global commands, prefix each command with the address 0. To prevent
spurious feedback any report or read command using address 0 will be ignored. Note a
drive will ignore a command missing an address prefix.
Where commands (such as IF, R, TR, and W) include a system variable it is treated as a
command parameter. System variables store internal drive values and settings. Each
variable is capable of being read and tested, and some may be written to, but they are all
dedicated for a particular use by the system and cannot be used for storing user data within
a program.
Command Syntax
Generally, a command’s syntax consists of an address ‘a’ followed by the command name.
Parenthesis containing the commands’ parameters or simply the range parameter ‘n’ follows
this. Within the parenthesis form of command, a comma separates each parameter and
italics indicate any optional parameters.
Commands not requiring any parameter string have the syntax shown in Figure 6-1.
aARMn
Range parameter
Command name
Address prefix
Figure 6-1. Simple Command Syntax
Commands, which include a parameter string, can be simple one parameter commands
such as GOSUB or CLEAR where the single parameter is a label, or multi-parameter
commands containing a string of parameter values. Figure 6-2 shows both styles of
parameter commands.
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116 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
aGOSUB(label)
Label parameter
Command name
Address prefix
aLIMITS(parameter1,2,3,parameter4)
Parameters 1,2,3 & optional parameter 4
Command name
Address prefix
Figure 6-2. Parameter Commands
Attention
[1] Terminate all commands with a carriage return. A space is not valid.
[2] A command must not contain any space characters.
[3] All commands are device specific, that is, they always need an address.
[4] For reasons of clarity, program examples appear as if being downloaded via
Easi-V, that is they contain comments and line feeds etc.
Command Properties
Each command has a particular set of properties that govern the way the command can be
used.
Commands can have the following properties:
Immediate only
Immediate or buffered
Can be used in labelled block
Can’t be used in labelled block
Saved by SV
Not saved by SV
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6. COMMAND REFERENCE 117
Immediate Only
Immediate only commands are:
C, K, S, R(RB), R(UF), R(DF) and R(ST)
The controller acts upon these commands as soon as they are received.
Immediate or Buffered
Immediate or buffered commands are immediate unless command execution is being
delayed or command queuing is enabled whilst moving, in which case the command is
buffered. When command execution is being delayed, that is awaiting the results of a trigger
command or waiting for a pause or time delay to finish, interrogation commands can be sent
and get executed immediately. Consequently, the report of such commands as 1IS, 1R(ST),
1R(UF), 1A etc. is correct. However, if a buffered type of command is sent (such as G or
1A10) the buffered command just sent and any other interrogation commands get buffered
and will not report back until the trigger, time delay or pause is finished. In this situation
‘Immediate only’ commands can be executed.
Example
1R(EI)
;read encoder input
*2
1IS
;read input status
*01111
;
1TR(IN,=,X0X01)
;input trigger false
1A50
1R(EI)
1IS
;send buffered command
;report commands are now delayed until the trigger
;command is complete
1R(RB)
*1
.
;an exception R(RB) is always immediate
;busy
.
(Trigger becomes true, 1A50 actioned)
*2
*00001
;report commands completed, EO=2
;new input status reported
Can be used in labelled block
Means it is possible to include the command within a labelled program block. Running the
labelled block code will execute the command. Note, if power is removed from the controller
without sending a save (SV) command the program and its labelled block will be lost.
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118 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Can’t be used in labelled block
Means it is not possible to include the command within a labelled program block.
Saved by SV
A command that has the property of being ‘saved by SV’ means data associated with that
command is capable of being stored in non-volatile memory. The saved value will become
the default value on power-up or following a Z command.
Not Saved by SV
If the command does not change data, such as GO or STOP, the commands’ properties are
listed as ‘not saved by SV’.
Automatic Checking of Valid Commands and Parameters
All commands and parameters are checked for syntax and parameter limits at data entry.
Certain commands will only report an error on execution, for example, commands defined
within a label. If a fault is detected, that command or parameter will be ignored during
execution of the program.
For example:
1USE(2)
where profile 2 has not been defined
Upon entry, this will cause a *E, cannot use an undefined profile type error report.
However, using the same command within a label:
1DECLARE(TST)
1TST:
;create a label
;begin the label code
1USE(2)
1END
;attempt to use undefined profile – no error reported
;terminate label
1GOTO(TST)
*E
:run label code TST
;error reported at run-time
In this case, the same error report message is given. Note: in both cases the program will
ignore the USE(2) command, but will continue execution using values taken from
PROFILE(0).
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6. COMMAND REFERENCE 119
A
Acceleration/Deceleration
Syntax
aAn
Units
see SCALE
Range of ‘n’
Default
10
See also
AA AD SCALE
0.01 to
99999.99
This command will set both the acceleration and deceleration rates of the
motor to the same value. Values set for the AA and AD commands are
over-written, if previously set.
Description
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
To set the acceleration and deceleration rates of axis 1
2
to 120 rps , type ..............................................................
To determine the acceleration of axis 1, type..................
1A120
1A
The response is ............................................................... *120.0 120.0
Overrange value ..............................................................
1A100000
Will be reported as........................................................... *E (meaning error)
Note
For all error reports refer to Section 4 - Reporting System Information
During Code Development.
AA
Acceleration
Syntax
aAAn
Units
see SCALE
Range of ‘n’
Default
10
See also
A AD SCALE
0.01 to
99999.99
Description The AA command will set or report the programmed linear acceleration rate
of the motor. The acceleration value assigned to the AA command is over-
written, if previously set.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
2
1AA120
1AA
To set the acceleration rate of axis 1 to 120 rps , type ...
To determine the acceleration of axis 1, type..................
The response is ............................................................... *120.0
Overrange value ..............................................................
1AA100000
Will be reported as........................................................... *E (meaning error)
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120 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
AD
Deceleration
Syntax
aADn
Units
See SCALE
Range of ‘n’
Default
10
See also
A AA SCALE
0.01 to
99999.99
Description The AD command will set or report the programmed linear deceleration rate
of the motor. The deceleration value assigned to the AD command is over-
written, if previously set.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
2
4AD320
4AD
To set the deceleration rate of axis 4 to 320 rps , type....
To report the current deceleration rate of axis 4, type......
The response is................................................................ *320
Overrange value...............................................................
1AD100000
Will be reported as ........................................................... *E (meaning error)
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6. COMMAND REFERENCE 121
ARM
Syntax
Enable label triggered code
Units
Range of
Default
01
See also
‘n & m’
aARMnm
-
0 or 1
START label
FAULT label
The ARM command allows you to enable (arm) or disable the START label.
It also enables/disables the FAULT label.
n=1 : start label is enabled
n=0 : start label is disabled (default condition)
The second parameter ‘m’ is a fault switch that enables/disables the fault
label from being run. See Fault Label in Control of ViX Drives.
m=1 : fault label is enabled (default condition)
m=0 : fault label is disabled
At power on, when saved and armed, the controller will execute the code
following the START: label (if defined).
The fault label parameter (fault switch), when enabled, will call the FAULT
label when any one of the following conditions occur:
1. When driving further onto a limit, whilst the limit mode is set as stop on
limit and the fault switch is enabled.*
2. When hitting a limit during a move, whilst the limit mode is set as stop on
limit and the fault switch is enabled.*
3. Having a hardware drive fault with the fault switch enabled.
*Note: If, within the LIMIT command, the mode is set to ‘1’ (stop when a limit
is hit but continue the program) motion will be stopped at the programmed
limit deceleration. No FAULT label will be called and the program will
continue in a normal manner.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
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122 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
The code following the START label will be run at power up:
Example
1START:
1T0.5
;start label
;delay
1ON
1LIMITS(3,0,0)
1PROFILE1(100,100,4000,25)
1USE(1)
1G
;disable limits
;define profile 1
;use profile 1
;execute profile 1
1END
1ARM1
1SV
;arm the start label
;save the code
If you save the controller with ARM0, then the start-up sequence will fail to
run, and the controller will wait for serial commands.
Note
Using EASI-V software, certain commands become armed when their on/off
parameter is set to ‘on’.
Requesting an ARM status will report the state of the START and FAULT
labels, for example:
aARM
*START 0
*FAULT 1
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6. COMMAND REFERENCE 123
C
Continue
Syntax
aC
Units
-
Range of ‘n’
Default
-
See also
PS
-
Description The C (continue) command causes a user command to resume execution
following a pause command.
Immediate only, can’t be used in labelled block, not saved by SV
Properties
Example
1PS
;pause commands
;acceleration 100rps
;velocity 20rps
;go
2
1A100
1V20
1G
1”*TEST”
1C
;add TEST comment
;continue
*TEST
;message TEST is displayed
CLEAR
Clear user code
Syntax
aCLEAR(label)
Units
-
Range of ‘n’
Default
-
See also
DECLARE
-
Description The CLEAR command deletes user program instructions from the label
specified until the END statement associated with that label. If a subroutine
has been cleared, but its associated GOSUB command still exists, at run
time the code will halt, motion will stop and *E will be reported.
Specifying the ALL keyword as the label will delete all user programs
within the drive addressed.
Immediate or buffered, can’t be used in labelled block, saved by SV
Properties
Example
0CLEAR(ALL)
; Clear memory of anything defined so far (all drives)
; delete the power on code, but nothing else, in
; axis 5
5CLEAR(START)
You can only clear declarations by using CLEAR(ALL).
Note
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124 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
D
Distance
Syntax
aDn
Units
See SCALE
Range of ‘n’
-2,147,483,647
Default
-
See also
M SCALE
to 2,147,483,647
Description The D command will set or report the programmed move distance. The
value programmed is only used for preset moves. In MC (Move Continuous),
the direction is observed.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
To set the move distance of axis 2 to 15000 steps type ..
2D15000
To report the current programmed move distance of
axis 2, type.......................................................................
2D
The controller responds with ............................................ *15000
If a value entered is out of range *E will be reported and the current value will
not be altered.
Distance reports the current direction as influenced by the H command in MI
(Mode Incremental) only. For example:
1MI
1D4000
1D
;mode incremental
;set distance to 4000 steps
;report distance
*4000
1H-
1D
;value reported
;change direction
;report distance
*-4000
;value reported
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6. COMMAND REFERENCE 125
Declare
Declare
Syntax
aDeclare(label)
Units
-
Range of ‘n’
Default
-
See also
CLEAR
-
All labels, apart from START, REG, NOREG & FAULT need to be declared
at the beginning of the program using a DECLARE command. Labels
consist of up to 5 upper case alphanumeric characters terminated with a
colon (:), but a label must begin with an alpha character. Choose a name
that is relevant to the operation being performed, or a system label name.
To terminate a code block use ‘END’ (no colon).
Description
You can use up to 20 labels, although four of these have already been
allocated to START, REG, NOREG and FAULT, leaving sixteen for general
use.
Only declare labels in the command line or inside the START label. If you
wish to upload your program all declarations must be made within the
START label.
If a label has been declared, but not defined, a run time error will be signalled
when it is called by a GOTO, GOSUB or LOOP command.
When a label has been declared and defined, clearing it will only get rid of
the definition, the declaration will remain. Declarations can only be cleared
using a CLEAR(ALL).
Typing aDECLARE by itself will list the percentage of memory used by each
label type.
Immediate or buffered, can be used in labelled block (but only within the
START label), saved by SV
Properties
Example
1DECLARE(CUT2) ;declare label CUT2
1DECLARE
*START 0.8%
*REG 0.0%
*NOREG 0.0%
*FAULT 0.0%
*CUT2 0.0%
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126 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
E
Enable/Disable Communications
Syntax
aEn
Units
-
Range of ‘n’
Default
1
See also
-
0 or 1
Description The E command disables or re-enables serial communications.
E1 turns command communications ON, whilst E0 turns it OFF. In E0 mode
the only command seen by the controller is E1.
Immediate or buffered, can’t be used in labelled block, E1 saved by SV
Properties
Example
An example of when to use this command is if global
commands are being sent but one axis needs to ignore
them whilst all others action them.
To enable axis 6 to accept commands over the RS232
serial link, type .................................................................
6E1
6E0
To disables communications using the RS232 serial
link, type...........................................................................
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6. COMMAND REFERENCE 127
EXIT
Exit from loop
Syntax
aEXIT
Units
-
Range of ‘n’
Default
-
See also
LOOP
-
Description The EXIT command will terminate a loop function at the end of a label.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
4START:
; signifies this is the power on sequence
4DECLARE(GRIP)
4PROFILE2(100,100,4000,25) ; define profile 2
4LOOP(GRIP,0)
4O(XX1)
4T5
; repeat the grip/ungrip code forever
; set output 3
; If we exit the loop then we pulse output
4O(XX0)
4END
; 3 to indicate gripper tension out of tolerance
;
4GRIP:
4USE(2)
4G
; Use motion parameters from profile 2
; do the move
4O(1XX)
4H
4T1
; trigger the measurement
; change to ungrip/grip
; delay for 1 sec
4IF(IN,=,X0X)
4EXIT
; gripper tension out of tolerance
; abort loop
4IF(IN,=,X1X)
4G
; else continue the loop
4END
In the example shown above, once the EXIT command is encountered the
cycle in progress will be completed, then the code will be returned to the line
immediately following the LOOP command. That is, output 3 is pulsed for 5
seconds to indicate the gripper tension is out of tolerance.
Note
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128 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
FOLLOW
Configure following
Syntax
aFOLLOWon/off(source,mode,scale)
The Configure Following command is used to setup following, allowing an
axis to copy movement from another drive.
Description
The source parameter specifies the device to follow. The only option is:
E – encoder input
The mode parameter determines the type of following move that takes place:
mode 1 The position of the motor follows the following source
All other mode values are reserved at present.
The scale parameter specifies the scaling applied to the following source.
This can range from 0.1 to 500% or –0.1 to –500% in steps of 0.1%.
Negative values reverse the sense of the following input.
With the following source set to “E” (encoder) the command following
position indicator (system variable PF) increments when pulses are received
by the following encoder input port according to the relationship:
PF = number of pulses received since following enabled * scale
PF accumulates in value at a rate proportional to the incoming pulses. In this
mode, turning following OFF, resets PF to zero.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
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6. COMMAND REFERENCE 129
Note
Only mode 1 is implemented at present.
Do not use mode absolute (MA) while following.
Do not perform a go home (GH) while following.
If you hit a limit whilst following, movement is immediately stopped and
following disabled*.
Do not use POSMAIN while following.
Refer to X4 Connector in Electrical Installation section.
*Driving through a limit, disables following. In this situation, perform an
indexed move back to a known reference point and investigate why the limit
was passed before re-enabling following.
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130 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
FRATE
Feed Rate Override
Syntax
aFRATEn
Units
-
Range of ‘n’
Default
0
See also
M
0 or 1
Description Feed Rate Override, the FRATE command, is used together with the
analogue input to scale the peak velocity of the drive (V). The purpose of
the command is to allow the speed of the process being performed by the
drive to be controlled by a single external analogue signal. The signal is
sampled at the start of each move and is used to scale the target velocity.
The resolution of the control is 1% (0.1V) of the analogue input voltage
range (10V = 100%). If the analogue voltage drops below a level equivalent
to 1% of the target peak velocity (the velocity being requested by the
analogue input voltage), the value used will be taken as 1% of the user set
peak velocity (velocity set by the V command). This is applied to values as
low as 0.01rps, the minimum velocity allowed.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
1ON
; energise the drive
1V30
1FRATE1
.
; set the user peak velocity as 30rps
; enable feed rate override
At this stage, apply an analogue voltage (say 1.85V) to the differential analogue input.
.
1G
The actual velocity used is given by:
(rounded down (analogue input X 10) X user set peak velocity)
100
(1.85 X 10) X 30 =
100
(1.8 X 10) X 30 = 5.40rps
100
Note: If the calculated result is less than 1% the value used is held at 1%.
In the example shown above, because of the rounding down, an input
voltage of 1.89V would also give a speed of 5.40rps.
Note
A unipolar input signal is required (0 to +10V), any voltage with a negative
polarity will be regarded as 1% of full scale value.
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6. COMMAND REFERENCE 131
G
Go
Syntax
aG
Units
-
Range of ‘n’
Default
-
See also
PS S K M
-
Description Issuing a G command starts motion using the parameters specified by the V,
A or AA/AD, and D commands or via the PROFILE and USE commands.
The mode of motion must have been previously set as this determines which
parameters are used and which are ignored. For example, mode continuous
will ignore the distance parameter.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
1PROFILE3(150,200,1500,25)
1USE(3)
1G
;define profile 3
;use profile 3
;perform profile 3
If no motion occurs after G is issued, the cause can be determined by using
the R(UF) command. Refer to the section on system parameters for more
information.
Note
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132 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
GH
Go Home
Syntax
aGH
Units
-
Range of ‘n’
Default
-
See also
HOME S K
-
The go home command instructs the controller to search for the home
position as defined by the home input switch. For this command to function
correctly, the home function must define the homing parameters.
Description
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
1START:
;START label definition
;define home
1HOME1(+,1,-15,100,0)
1GH
;go to datum position
1END
Note
If no motion occurs after GH is issued, the cause can be determined by using
the R(UF) command to report faults. Refer to the section on system
parameters for more information.
Whilst going home, registration (if armed) will be disarmed and on successful
completion of the GH routine the registration armed state will be restored.
System variable HF sets the home final velocity.
GOSUB
GO to SUBroutine
Syntax
aGOSUB(label)
Units
-
Range of ‘n’
Default
-
See also
GOTO
-
Description The GOSUB command continues user program execution from the label
specified and once the END statement is reached (in the called code),
program execution returns to the calling routine.
GOSUBs can be nested to a maximum of 16 times, although the number of
nestings will be decreased if used in combination with a LOOP command.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
1DECLARE(MOVE1)
1DECLARE(MOVE2)
1START:
; code run after power on
; define some move profiles
1PROFILE1(360,360,400000,20)
1PROFILE2(360,360,400000,45)
1GOSUB(MOVE1)
1GOSUB(MOVE2)
1O(1XX)
; go do move 1 and come back
; go do move 2 and come back
; set output 1
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6. COMMAND REFERENCE 133
1END
1MOVE1:
1USE(1)
1G
; use the move profile 1
1O(XX1)
1T0.1
1O(XX0)
1END
; turn output 3 on
; wait for 100mS
; turn output 3 off
1MOVE2:
1USE(2)
1G
; use the move profile 2
; pause for settle time
1T1
1TR(IP,=,1)
1END
If you exceed the number of nesting levels the program will halt and
Note
return a *E. R(UF) will return a ‘Program nesting overflow’ message.
If a GOTO command is used, the number of nesting levels is set to zero.
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134 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
GOTO
GO TO routine
Syntax
aGOTO(label)
Units
-
Range of ‘n’
Default
-
See also
GOSUB
-
Description The GOTO command continues user program execution from the label
specified.
Program execution does not return to the original place in the program (use
GOSUB if command execution is required to return).
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
2DECLARE(MOVE1)
2DECLARE(MOVE2)
2START:
2PROFILE1(360,360,400000,20)
2PROFILE2(360,360,400000,45)
2GOTO(MOVE1)
; declare move 1
; declare move 2
; code run after power on
; define some move profiles
; perform move 1
2END
2MOVE1:
2USE(1)
2G
; use the move profile 1
2GOTO(MOVE2)
2END
2MOVE2:
2USE(2)
2G
; use the move profile 2
2GOTO(MOVE1)
2END
If a sequence that is being looped, executes a GOTO command, the loop is
terminated.
Note
The example shown above will give endless motion, only a FAULT condition
or an immediate KILL or STOP command via comms. would stop this
program.
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6. COMMAND REFERENCE 135
H
Change direction
Syntax
aHn
Units
-
Range of ‘n’
+ - or blank
Default
+
See also
D, LOOP
Description The H command changes the direction of motion. Specifying H+ sets the
direction to clockwise, H- counter clockwise, and H alone reverses the
current direction.
This command has no effect in Mode Absolute.
In Mode Continuous, the use of H+ and H- are recommended for setting
direction.
If H is entered whilst the motor is moving, the direction will not change until
the motor comes to a stop and another G command is given.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example 1
3MI
; mode incremental
; accel and decel to 20
; max speed of 15 rps
; 2 revs ccw
3A20
3V15
3D-8000
3G
Refer to
LOOP
; move
3H
3G
; go cw next time
; 2 revs cw
3START:
3PROFILE1(360,360,40000,20)
; define profile 1
3MI
; mode incremental
3GOTO(MAIN)
3END
3MAIN:
3USE(1)
3G
3H
3G
; use profile 1 parameters
; do the move (CW)
; change direction (CCW)
; go back
3END
; end of user program
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136 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
CAUTION
Note
The USE command or the D command will re-define the move direction each
time it is executed. To set up a loop to go CW (clockwise) then CCW
(counter clockwise), make sure the D or USE command is outside of the
LOOP otherwise the direction will be the same each time around the loop.
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6. COMMAND REFERENCE 137
HOME
Configure Homing
Syntax
aHOMEon/off(reference_edge,home_type,direction_&_velocity,
acceleration/deceleration,mode)
The Configure Homing command is used to setup homing prior to the use of
Description
the GH (Go Home) command. See also system variable HF.
Use on/off to arm and disarm homing.
The reference edge parameter is used to select the required edge of the
home switch (+ for edge nearest the CW (positive movement) limit or - for
edge nearest the CWW (negative movement) limit), see Homing section.
The home_type parameter is used to select the type of switch to be used for
homing, the choice is:
Home switch normally open
Home switch normally closed
0 (default)
1
Direction and velocity determines the direction in which home is initially
searched for and the velocity at which homing is performed.
Acceleration/deceleration sets the acceleration and deceleration rates
used.
The mode parameter determines what happens when the specified edge of
the home switch is encountered:
•mode 0 The controller positions the motor in the active window of the
switch (default setting).
•mode 1 The motor is positioned to the required edge of the switch + or -.
•mode 2 Reserved.
•mode 3 If an encoder with a Z channel is used then the controller will seek
the Z position after detecting the specified home switch edge.
•mode 4 If an encoder with a Z channel is used then the controller will seek
the Z position without the need for a home switch.
For linear encoder applications there is normally only one index (Z) position.
Mode 4 should be used to save the use of a home switch.
For rotary applications where the maximum distance required is one
revolution the index mark may be used as a unique home position. For all
other applications mode 3 should be used as the index position will not be
unique.
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138 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
In mode 0, when the home position is reached, the absolute position of the
controller is set to 0. The incremental position reports the distance moved to
reach the home position. (system variable PI).
Typing aHOME on its own will return the current parameter values for the
nominated axis. For example:
The command 3HOME will return:
* AR1 E- TP1 V+10.00 A10.0 M0
Meaning the command is armed, reference edge is negative, home type
2
is 1, velocity is 10 rps positive, acceleration is 10 rev/s and mode is 0.
Once configure homing has been setup, it can be applied (turned ON), or
armed using the simplified form of command:
aHOME1
Or turned OFF using:
aHOME0
Immediate or buffered, can be used in labelled block, saved by SV
On axis 3 search for home in the negative direction at a velocity of 15
Properties
Example
2
rps and acceleration/deceleration of 100 rps . The motor is to stop on
the negative edge of the home switch and then seek zero phase.
3HOME1(-,1,-15,100,1)
position on edge of switch
acceleration/deceleration of 100
15rps and search negative
home switch normally closed
stop on the -v.e edge
turn homing ON
The go home final velocity of 0.1 rps is used to complete the last part
of the move.
Also see GH command.
Note
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6. COMMAND REFERENCE 139
IF
Test condition
Syntax
aIF(system_variable,relation,value)
Description The IF command compares the specified system variable with the specified
value using the specified relation. If the condition is met, the next line of
code is executed otherwise it is skipped.
Refer to the table of system variables that can be used for conditional
control.
Valid relations for the comparison are:
=
Equals
<>
>
<
Does not equal
Greater than
Less than
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
2IF(PA,>,450)
2O(1XX)
; if absolute controller position > 450 steps on axis 2
; set output 1
2IF(PA,>,500)
2O(X1X)
; if absolute controller position > 500 steps
; set output 2
Using inputs
2IF(IN,<>,1X00X)
2O(XX1)
; if input does not match the pattern
; set output 3
Note
If you wish to use the IF command during motion, command queuing (system
variable CQ) must be set for continuous execution (CQ=0).
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140 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
IS
Input Status
Syntax
aIS
Units
-
Range of ‘n’
Default
-
See also
O
-
Description The IS command reports the status of the configurable user inputs when
configured as pull-down (non-inverting) inputs.
When used to report the state of any input switch, regardless of how the
switch is wired, that is as a pull-up or as a pull-down:
0 represents an open contact switch input
1 represents a closed contact switch input
The response is five (0 or 1) digits corresponding to the following input bits:
X3 Pin Number
Bit
1
Function
User input 1/Stop
User input 2/Reg
User input 3/Home
User input 4/LIM-
User input 5/LIM+
10
9
2
8
3
7
4
6
5
0 represents a low condition on the input (configured as a pull-down input)
1 represents a high condition on the input (configured as a pull-down input)
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
To check the input status of axis 1, type..........................
The response is................................................................
1IS
*01100
User inputs 2 and home input 3 are high. All other
inputs are low.
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6. COMMAND REFERENCE 141
K
Kill
Syntax
aK
Units
-
Range of ‘n’
Default
-
See also
S, PS, KILL
-
Description Issuing a KILL will command motion to stop at limit deceleration rate. The
command will then zero the position error to remove torque from a stalled
load.
Carefully consider the use of this command in applications where a load with
a large inertia may be required to stop quickly. By commanding K the motor
could stall and lose torque. For this reason, a load with large inertia should
be stopped mechanically to avoid overshoot of limit switches. Power
dumping may be required to protect the drive from over voltage trips.
For a controlled stop use the S (stop) command.
The KILL command cannot be used in a label, its use is primarily for
emergency situations.
K will also terminate any program execution and will disable a FOLLOW
command.
Immediate only, can’t be used in labelled block, not saved by SV
Properties
Example
1G
1K
;set drive in motion
;stop everything
Note
The K command does require a device address or 0K to kill all axes. It will
stop a time delay (T command) and will abort a program.
CAUTION
KILL uses the LIMITS command optional deceleration rate LD, if this is
2
not set a default value of 200 rps is used.
BEWARE THAT A LOW SETTING OF LD COULD RESULT IN THE
MOTOR TAKING LONGER TO STOP AFTER A ‘K’ THAN AFTER AN ‘S’.
This command does not replace the requirement for an additional hardware
device to cut power to the motor in an emergency.
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142 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
LIMITS
Configure limit inputs
Syntax
aLIMITS(mask,type,mode,LD)
Description The LIMITS command allows the user to define whether the LIM+/- inputs
are used as limit inputs or user inputs via the LIM_MASK.
The mask field takes the following values:
0
1
2
3
Enable limits (default setting)
Disable limit +
Disable limit -
Disable limit + & -
The +ve limit switch is the switch that is reached when the motor reaches the
end of travel for a move with +ve distance/velocity (CW).
The -ve limit switch is the switch that is reached when the motor reaches the
end of travel for a move with -ve distance/velocity (CCW).
type field takes the following values:
1
0
Limits normally closed (default setting)
Limits normally open
mode field takes the following values:
0
Stop motion when a limit is hit and abort the program, then go
to a predefined fault sequence, otherwise stop (default setting).
1
Stop motion when a limit is hit but continue the program. In
certain applications this allows the limit switch to define a
home position.
The optional LD parameter sets the required deceleration rate after hitting a
2
limit, the default deceleration is 200 rps . Changing this value will alter the
KILL deceleration rate.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
3LIMITS(0,1,0,100)
;both limits enabled, normally closed switch
;stop motion when hit
2
; deceleration 100rps
3LIMITS(1,1,0,100)
; +ve limit disabled, normally closed switch
; stop motion when hit
; deceleration 100rps
2
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6. COMMAND REFERENCE 143
To report the current configuration of the limits,
type...................................................................
3LIMITS
The response, using the above example.......... *LM1 TP1 M0 LD100.0
See also
Notes
IS AD KILL
The default value of LIMITS type field is 1, that is normally closed.
Hitting a limit stops motion, which cannot be re-started until you drive the
load back off the limit switch. An exception to this occurs while following.
When following is enabled the indexer only checks to determine if the load is
on a limit or not.
LIST
List user program
Syntax
aLIST(label)
The LIST command is used to view a user subroutine program in memory
Description
specified by the label parameter.
Immediate or buffered, can’t be used in labelled block, not saved by SV
Properties
Example
Providing a program has been entered, typing 1LIST(ALL) would
produce the following :
1START:
1PROFILE1(360,360,400000,20)
1PROFILE2(360,360,400000,45)
1GOTO(MOVE1)
1END
1MOVE1:
1USE(1)
1G
1H
1END
Note
Typing 1LIST(MOVE1) will only produce the code following label MOVE1 as
far as END. That is :
1MOVE1:
1USE(1)
1G
1H
1END
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144 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
LOADENC
LoadEnc settings
Syntax
aLOADENCon/off
This command allows a user to specify distances in load movement steps
when used with a load mounted encoder connected to X2. It can be used in
combination with position maintenance or any application where you need to
specify distance in load mounted encoder steps, such as feed-to-length.
Description
The parameters used are:
on/off enables/disables load mounted encoder as the position loop feedback
device 1 = ON, 0 = OFF.
When LOADENC is off, distance, velocity and acceleration are in motor
steps. When LOADENC is on, distance, velocity and acceleration are in load
feedback steps set by the system variable EM, Hence:
D1 = 1 load encoder step.
V1 = EM counts per sec.
A1 = EM counts per sec2.
EM is defined as the number of load mounted encoder steps per motor
revolution. The sign of EM dictates the direction of the LOADENC count. If
+ve, then drive expects A leads B when motor rotates Clock Wise (CW) (+ve
demanded motion).
Immediate, may be included in a labelled block, saved by SV
Properties
Note
The drive must be de-energised before issuing the command, you will
receive *E if issued when the motor is energised.
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6. COMMAND REFERENCE 145
LOOP
Repeat user code
Syntax
aLOOP(label,cycles)
Description The LOOP command repeatedly calls a labelled block of code a number of
times specified by the cycles parameter, the range being 0 to 65000. Note: If
the number of cycles is set to 0 the loop will continue indefinitely.
Nesting of loops up to 5 levels is permitted.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
Run the grip code for a mechanical elasticity tester 6 times, and delay
for 1 second between each grip cycle to allows a sensor to measure
deflection.
2START:
; signifies this is the power on sequence
2DECLARE(GRIP)
2PROFILE2(150,200,4800,45)
2USE(2)
; Use motion parameters from profile 2
2LOOP(GRIP,6)
2END
; repeat the grip/ungrip code 6 times
;
2GRIP:
2G
2O(XX1)
2T1
2H
2G
; do the move on axis 2
; signal grip cycle
; delay for one second
; change to ungrip/grip
; do the move again
; change direction
2H
2O(XX0)
2END
; signal end grip cycle
Note
Also see the EXIT, KILL and GOSUB command.
If you use a GOTO command within a LOOP, it will stop program execution
of the loop and the number of nesting levels will be set to zero.
If you exceed the number of nesting levels the program will halt and
return a *E. R(UF) will return a ‘Program nesting overflow’ message.
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146 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
LSEL
Label Select
Syntax
aLSELon/off(code,inputs,execution,type)
The label select command allows the code following a label having the name
Lnn (where nn is the detected input code) to be performed when a certain
user input pattern is detected on a number of inputs in the range 1 to 5. The
code can be continuously repeated or may be re-triggered, depending upon
the command’s execution parameter setting. The optional parameter ‘type’
specifies which inputs are to be tested; internal or fieldbus inputs.
Description
The controller supports up to 16 user-defined subroutine labels, requiring 5
inputs to be able to select any 1 of the 16. You must declare each label
before you use it. For example:
1DECLARE(L1)
1L1:
code goes here
1END
16 subroutine labels may be numbered in the range L1 to L31 if they are to
be executed using the LSEL command.
IMPORTANT: The drive will need to use all of its inputs to select from the
complete range of 16 labels unless a field-bus input-module is used.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Parameter
Range
0 (default setting)
On
1
Off
Code
0
1
BCD
binary (default setting)
Inputs
1 to 5 (default of 5)
Execution
0
continuously repeated
(default setting)
re-triggered
1
Type (optional)
Reserved
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6. COMMAND REFERENCE 147
The range of input code patterns is given below. Selecting a BCD code restricts the number
of input codes detected (1 to 9 and 11 to 19).
Inputs
Code type/Execution label
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
4
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
BCD code
Binary code
-
1
-
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
-
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
-
-
-
-
-
-
11
12
13
14
15
16
17
18
19
-
-
-
-
-
-
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148 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
The main code configures the label select command to detect a
binary code on 5 inputs (all high gives decimal 31), and if detected,
to continuously run the code at label L31.
Example
Use binary mode for PLC control and BCD for control via a
thumwheel.
1START:
1DECLARE(L31)
1LSEL1(1,5,0)
1ARM1
.
1L31:
1A10
1V10
1G
1END
To check the current mode, type.......
1LSEL
The response will be ......................... *AR1 B/D1 IN5 C/R0
If the inputs remain high, the code following label 31 will run continuously. If
the inactive execution mode was selected, all inputs would need to go to
00000 and then 11111 before running the code at label 31.
Note
The selected routine will only run if no other routine is already executing.
The number of inputs available for use by LSEL depends upon the use of
limits, home or registration within an application.
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6. COMMAND REFERENCE 149
M
Mode
Syntax
aMn
Units
Range of ‘n’
see below
Default
-
See also
FRATE
-
The mode command sets up the mode of operation of the controller.
Description
The values of n are:
A – indexed move with absolute positioning
B – continuous move with velocity controlled from the analogue input
C – continuous move
I – indexed move with incremental positioning
P – step and direction base drive mode
Mode absolute – all move distances are referenced to absolute distance.
Mode bidirectional - the motor moves continuously at the velocity determined
by the analogue input level. +10V gives maximum +ve velocity (determined
by V), -10V gives maximum –ve velocity (determined by V), 0V gives nominal
zero velocity (see also AB variable to set analogue deadband, A0 to set
analogue offset).
Mode continuous –the motor moves continuously at the programmed velocity
until stopped.
Mode incremental – all move distances are referenced to the starting position
of each move.
Mode Position – Like 1:1 following except that the enable input becomes a
true energise input. Acts like a base drive. No preset motion is allowed, but
user programs will run.
Immediate or buffered, can be used in labelled block, saved by SV
The code below sets up an absolute move.
Properties
Example 1
3W(PA,0)
3MA
;set PA, PT, PF & PE to zero
;mode absolute
3D1000
3G
3D100
3G
3R(PT)
*100
;set distance
;move to absolute position 1000
;set distance
;move to absolute position 100
;report target position
To check the current mode, type .....................................
3M
The response will be........................................................ *MA
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150 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Summary of microstepper modes
Mode
MA
Source
TG
Enable/Energise
Enable
Limits
Local
MB
ANA I/P
TG
Enable
Local
MC
MI
Enable
Local
TG
Enable
Local
MP
ENC I/P
Energise/Shutdown
Remote
Key:
TG – Trajectory Generator (internal command reference)
ANA I/P – ANA1+, ANA1- analogue input on X4. See also AO and AB.
ENC I/P – The encoder inputs on X4
Enable/Energise – describes the function of X4 pin 11. For a ViX indexer drive this
pin is used for the enable function and its active sense is programmed using ES. Disabling
the drive causes a drive fault. In mode position, the drive acts as a base drive (non indexer
mode) and X4 pin 11 can be used to energise/shutdown the drive without generating a drive
fault.
The MP mode provides base drive functionality, that is, step, direction, energise input and
fault output. In this mode, X4 pin 11 is used to energise/de-energise the drive and the
ON/OFF commands are prohibited. Local limits must be disabled by the user and monitored
instead by the system controller providing the step, direction and energise signals, hence the
reference to remote limits in the above table.
Example of step and direction configuration:
1LIMITS(3,0,0)
1W(ES,0)
1W(EI,0)
1MP
;do not use local limits
;X4.11 low = energise, high (open circuit) = shutdown
;step and direction input mode
;mode position
Status bit 25 indicates motion direction:
1=negative, CCW
Note
0=positive, CW
In MA the command H is ignored
You should not use following in mode MA.
Applying a step waveform to the analogue input will cause the velocity to
ramp with acceleration A to avoid stalling the stepper.
Do not use Go Home in MB mode.
Hitting a limit in MB or MC mode gives the same response.
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6. COMMAND REFERENCE 151
MOTOR
Motor Settings
Syntax
aMOTOR(Type,Current,Resolution,Max_vel,%thirdharmonic,Resistance,
Inductance)
This command describes the characteristics of the motor being used to the
rest of the drive. The parameters used are:
Description
Type – 0 to 1023 number code
Current – RMS continuous motor current (0.1 to 5.6 A in 0.1 A increments
for ViX500).
Resolution – Any value from 200 to 51200 steps per rev.
Max_vel
1 to 3,000 rpm
Third Harmonic – % of third harmonic applied to current sine wave. Used to
increase slow speed smoothness. Range: +/-15%.
Resistance – Winding resistance in Ohms*
Inductance – Winding inductance in mH*
*Measured line-to-line across the motor terminals.
The command sets all of the motor parameters and then calculates the
optimum settings for the digital torque amplifier.
If there is no HV present when the motor command is issued, the HV is
assumed to be 80V, and this figure is used for the calculation of the digital
torque amplifier optimum settings. When operating the drive at a voltage
other than 80V DC, make sure the HV is present when issuing the motor
command. Otherwise, the settings of the digital torque amplifier will not be
optimised.
IT IS IMPORTANT TO RE-ISSUE THE MOTOR COMMAND IF YOU
CHANGE THE HV.
ANY CHANGES TO THE MOTOR TYPE MUST BE FOLLOWED BY A
SAVE (SV) AND RESET (Z) OR CYCLING POWER TO THE DRIVE.
The motor type is stored as 10 binary digits, as follows:
bits 0 to 7
bit 8
motor identification code
temperature sensor fitted
bit 9
parallel or series connection ‘1’ = series, ‘0’ = parallel
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152 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Note
[1] The motor command can take up to 12 seconds to finish execution.
[2] When changing motor type the fault and status information may not be
valid until the motor has been defined, saved and the drive re-initialised.
[3] For less than 30% drive rating the motor current resolution is degraded.
For 25% drive rating the maximum resolution is 50800. For 10% drive rating
the maximum resolution is 26450. Whilst operating at these degraded
current levels the drive and controller can still be commanded to a resolution
of 51200 steps per rev.
O
Output
Syntax
aO(pattern)
Units
-
pattern
see below
Default
000
See also
IS
Description The O command applies the specified binary pattern to the user outputs.
Pattern takes the bit values 0, 1, X, where 0 is output off, 1 is output on and
X represents an unchanged state.
Pattern is 3 bits in length in the order of outputs 1 to 3
Trailing X characters are not required.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
2O(110)
2O(X0X)
; sets outputs 1,2, ON and 3 OFF
; leaves outputs 1,3 as they were and
; turns output 2 OFF
2O(101)
;sets outputs 1 & 3 ON and turns output 2 OFF
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6. COMMAND REFERENCE 153
OFF
Shutdown motor power
Syntax
aOFF
Units
-
Range of ‘n’
Default
OFF
See also
ON
-
Description Issuing an OFF command de-energises the drive to shutdown the motor
power. The controller responds to move commands that are issued after an
OFF with *E. If you check the fault variable UF, you will see the ‘Drive
disabled’ bit set to indicate that the drive was de-energised when a move
was attempted.
OFF reduces motor heating and allows manual positioning of the load,
assuming the system mechanics allow this and it is safe to do so.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
1OFF ;shut down motor power on axis 1
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154 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
ON
Turn ON motor power
Syntax
aON
Units
-
Range of ‘n’
Default
-
See also
OFF
-
Description Issuing an ON command energises the drive and clears the current state of
the drive fault registers.
The command allows execution of moves provided the motor is not on a
limit.
ON will clear the User Fault and Drive Fault variable to all zeros, but if a fault
is still present the motor will not energise and the fault variables will be
updated once again.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
1START
;program start-up routine
1ON
;energise motor
.
;attempts to clear any faults
.
;
;
1END
1FAULT
;fault handling routine
1”FLT”
;send warning over comms.
1TR(IN,=,XX1) ;wait for ‘reset’ input 3
1GOTO(START) ;re-run start routine
1END
;
This small section of program shows the use of the ON
command at the start of the code and the use of a fault
routine to attempt a program re-start if a fault occurs.
Issuing an ON command will clear all user status flags.
Note
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6. COMMAND REFERENCE 155
POSMAIN
Position maintenance
Syntax
aPOSMAINon/off(dead_band_range,output,settletime)
Description POSMAIN must use an encoder connected to X2 to monitor the system’s
actual position. The command enables position maintenance. The on/off
parameter takes the values of 1 for ON and 0 for OFF. With position
maintenance enabled, if the motor shaft stops within the dead band range
for the optionally specified settle time then the indexer will regard the move
as having been completed. If the motor shaft is stationary outside of the
dead band range, position maintenance will attempt to move the motor shaft
to its target position.
Status bit 17 will be set while executing a position maintenance move.
The optional parameter output specifies a user output that will be latched
ON when a corrective move is made. The output will be turned OFF when
the next G (go), GH (go home), any ON command or Z (reset) command is
received, and status bit 17 will be reset.
The optional parameter settletime specifies how long in milliseconds that the
indexer will wait after motion has ceased, before checking the feedback
encoder. Motion has ceased when the motor has been commanded to stop
and the in-position timer has timed out. The in-position signal will only be set
(high) after the in-position time and the settle-times have lapsed and the
motor shaft has been positioned within the deadband.
For more information on POSMAIN refer to the Position maintenance
section in Control of ViX Drives.
Parameter ranges are:
Parameter
On/off
Range
Units
Defaults
1 ON, 0 OFF
refer to table
of distance units
for enabled
0
Deadband Range 0 to 32767
10
Output
0 to 3
commands in
0
(0 = no output) section 4.
0 to 65535 milliseconds
Settle time
0
Note: dead band range is measured in encoder count units as a +/- band, consequently a
dead band of 10 will be equivalent to ±10 or 20 units wide.
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156 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
1POSMAIN1(10,3)
; Enable position maintenance. Allow
; a 10 step dead band window and set o/p 3
; when within the desired range
1POSMAIN1(20)
; Enable position maintenance. Allow a
; 20 step dead band window. Output not set.
[1] Position maintenance is performed at the end of a move to correct any
overall position error.
Note
[2] If encoder resolution is different to the motor resolution, then you must
set system variable EM and enable LOADENC. The deadband range will
work in EM* steps. If setting EM +ve, the encoder expects A to lead B for
+ve commanded motion.
[3] The error window is measured in motor steps with LOADENC and
SCALE disabled, load steps with LOADENC enabled, and user steps with
SCALE enabled.
[4] If scaling is enabled, the value given in the deadband will remain the
same, but will now be in user units.
[5] Use encoder port X2 (primary encoder).
[6] With POSMAIN enabled DO NOT USE FOLLOWING.
[7] Position maintenance parameters can only operate correctly after
MOTOR, LOADENC, SCALE and the EM variable have been correctly
configured.
[8] POSMAIN velocity is fixed as V1. The acceleration rate is the one used
in the last GO command.
[9] Position maintenance mode can be selected and de-selected during the
execution of a program.
*EM = encoder counts per rev (4 X line count).
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6. COMMAND REFERENCE 157
PROFILE
Define move profile
Syntax
aPROFILEnumber(AA,AD,D,V)
Description The PROFILE command sets up a table of move profiles in the controller
memory. These profiles can be recalled at any time by the USE command.
The PROFILE command parameters are:
Acceleration
Deceleration
Distance
AA
AD
D
Velocity
V
Ranges for the AA, AD, D and V commands are as stated for each individual
command.
The range of PROFILE number is 0 to 8, but PROFILE0 cannot be
defined.
Use PROFILE0 to read the current profile settings. The format of the
returned message will be:
*0 AA10.0 AD10.0 D4000 V1.00
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
Profile 1 is to represent a move of 1500 steps on axis 3 at a velocity of
2
25 rps and acceleration/deceleration of 200 rps :
3PROFILE1(200,200,1500,25)
Profile 2 is to represent a move of 4800 steps on axis 3 at a velocity of
2
2
45 rps, acceleration of 150 rps deceleration of 200 rps :
3PROFILE2(150,200,4800,45)
The following move profiles will now be available in memory on
axis 3:
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158 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Profile
1
2
number
Acceleration 200
Deceleration 200
150
200
Distance
Velocity
1500 4800
25 45
The move parameters specified by Profile 2 may be
used (that is, copied to profile 0) with the statement........
4USE(2)
A profile command will overwrite any individually programmed values of
acceleration, deceleration, distance and velocity once the USE command is
issued.
Note
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6. COMMAND REFERENCE 159
PS
Pause
Syntax
aPS
Units
-
Range of ‘n’
Default
-
See also
C
-
Description The PS (pause) command causes immediate command execution to cease
until a C (continue) command is issued. The command is useful as a debug
aid when testing small trial code blocks.
The PS command cannot be used whilst running a program.
Immediate or buffered, can’t be used in labelled block, not saved by SV
Properties
Example
0PS
;global pause
;setup axis 1
; .
1D4000
1V5
1A50
2D8000
2V10
2A100
0G
; .
;setup axis 2
; .
; .
;global GO
;global continue
0C
If the input command buffer is filled during a pause *E will be reported
(assuming EX is set to speak whenever), and the status LED will continually
flash red then green. To clear this condition cycle the power.
Note
R
Report system parameter
Syntax
aR(system_variable)
Units
-
Range of ‘n’
Default
-
See also
W
-
Description The R command allows the user to read the specified system variable.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
Note: aR(RB) is immediate only
2R(AO)
;report the current value of variable AO
The response could be .................................................... *1500
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160 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
REG
Registration move
Syntax
aREGon/off(edge,profile_number,hold_off_distance,registration
window,output)
Description The REG command, once turned ON, defines a registration move. After a
number of steps, determined by the optional hold off distance, the controller
will begin to search for a valid registration signal.
Once a valid registration mark has been detected the registration move is
performed using the move parameters taken from the previously defined
profile* (profile_number in the command parameters). At the end of the
registration move the user program GOSUBs to the code immediately
following the REG label. If no registration mark is detected, the standard
move profile completes and the user program GOSUBs to the code
immediately following the NOREG label.
* Registration will always occur in the current move direction. If the direction
in the defined profile is different to the current move direction, the direction
information in the defined profile is ignored.
An optional output can be programmed to indicate that a move that has been
armed is ready for registration. This would normally be after the move has
started or after the hold-off distance (if defined). The output chosen must be
within the range of allowable outputs (1 to 3). The default value is no output.
Once registration has been setup, it can be applied (turned ON) using the
simplified form of command:
aREG1 or turned OFF using: aREG0
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Parameter
On/Off
Range
1 or 0 (default)
1 or 0 (default)
1 to 8
Units
Comments
1 ON, 0 OFF
Edge
1 rising, 0 falling
Must be user defined
default 0
Profile number
Hold off distance
Registration window
Output
0 to 2147483647 steps
0 to 2147483647 steps
0 to 3
default 0
Default is no output
(0)
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6. COMMAND REFERENCE 161
Example
2START:
2PROFILE1(10,10,40000,5)
2PROFILE2(20,20,20000,10)
2REG1(1,1,10000)
2USE(2)
2G
2END
2REG:
2O(XX1)
2T0.5
2O(XX0)
2END
; Turn output 3 on : increment batch counter
; Delay execution for 500mS
; Turn off output 3
2NOREG:
2O(X1X)
2T0.25
; if we come here we didn’t have a valid reg mark
; Turn op2 on :push unlabelled product off conveyor
; Delay execution for 250mS
2O(X0X)
2END
; Turn off output 2
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162 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
RFS
Return to factory settings
Syntax
aRFS
Units
-
Range of ‘n’
Default
-
See also
SV
-
Description Issuing an RFS command initialises the controller to factory default settings.
The drive must be de-energised (OFF) for RFS to be executed.
Factory settings must be saved using the SV command before they take
effect.
The default settings are:
All labels cleared, all outputs set to logic low.
Note: the RFS state of ARM is start disabled, fault enabled (ARM01).
Immediate, can’t be used in labelled block, saved by SV
Properties
Example
1LIMITS(3,0,0,900)
1RFS
;define limits
;return to factory settings
;save factory settings
;report limits
1SV
1LIMITS
*LM0 TP1 M0 AD 200
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6. COMMAND REFERENCE 163
S
Stop
Syntax
aS
Units
-
Range of ‘n’
Default
-
See also
PS, K
-
Description Use the S command to bring motion to a controlled stop. The command will
use the current value of deceleration as specified by either the immediate A
or AD commands or the current profile being used. This command also
aborts label execution when used from the command line.
Use the command from the command line or within a label.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
1G
1S
;start the move
;stop the move
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164 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
SCALE
Scale settings
Syntax
aSCALEon/off(SCLA,SCLD,SCLV, PEU)
This command allows a user to specify Acceleration, Distance and Velocity in
their own chosen units.
Description
The drive firmware needs to know how many commanded position steps
there are in a user unit and then how many fractions of a unit there are for an
A, D or V of 1.
The parameters used are:
SCLA – 1 to 100,000,000 Used to scale A.
A of 1 unit/s2 = PEU encoder counts per sec2. If SCLA <>1, all
acceleration values entered are internally divided by the SCLA
parameter value. Default 1.
SCLD – 1 to 100,000,000 Used to scale D.
D of 1 unit = PEU encoder counts. If SCLD <>1, all distance values
entered are internally divided by the SCLD parameter value. Default
4000.
SCLV – 1 to 100,000,000 Used to scale V.
V of 1 unit/s = PEU encoder counts per sec. If SCLV<>1, all velocity
values entered are internally divided by the SCLV parameter value.
Default 1.
PEU – 1 to 100,000,000 – Position Encoder steps per Unit : defines the
number of position feedback encoder steps in a user unit. The steps referred
to are motor steps if LOADENC is disabled, or load mounted encoder steps if
LOADENC is enabled.
Default unit = 1 motor rev (rotary) 1 pole pitch (linear)
Default PEU = 4000
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6. COMMAND REFERENCE 165
Example:
Suppose we have a motor attached to a linear table. The motor resolution
has been set to 4000 steps per rev. The linear table has a load mounted
10um encoder and is 0.5m long. It takes 80 motor revs to move the table its
complete length. The motor has to position the table in 100 distinct linear
positions at a speed range of 0.02ms-1 to 0.2ms-1.
• 50000 / 80 = 625 load encoder counts per motor revolution
Set variable EM to 625
Enable LOADENC
• 0.5m at 10um = 50000 load counts complete table length
Set PEU to 50000
• Table to move to 100 distinct locations
Set SCLD to 100. D1 = one hundredth of the table length.
• 0.5m / 0.01ms-1 = 50
Set SCLV to 50. Then V2 = 0.02ms-1 and V20 = 0.2ms-1
The scaling is applied to the next move made upon issue of the GO
command.
A, AA, AD, D and V always report user units.
In any application the SCALE command should be issued once only. Its
purpose is to allow for a fixed user unit to motor steps scaling. It is not
designed to be changed on the fly and unpredictable results may occur
if the command is used in this manner.
Immediate, may be included in a labelled block, saved by SV
Properties
Note
• If SCALE is enabled and PEU/SCLD is a non-integer value, then the
drive will return a *E.
• Stall and Posmain deadbands work in user units when SCALE is
enabled.
• When scale is enabled, the value for deadband is not adjusted, but it
is now in user units and may need to be changed to maintain the
same displacement.
• Enabling scale does not change the values of A, D and V, but they are
now measured in user units.
• If scale is turned OFF, remember to set A, D and V to appropriate
values before issuing a GO command. Values of V may be out of
range, unless re-issued in motor or load units.
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166 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
STALL
Stall detect
Syntax
aSTALLon/off(error_window,mode,output)
Description The STALL command is used to enable stall detect. To use this command
an encoder must be connected to X2 to monitor the system’s actual position.
The on/off parameter takes the values of 1 for ON and 0 for OFF and has a
default value of OFF. If the error between demanded position and encoder
position exceeds the error window, then the drive will generate a stall fault.
A stall fault will cause the ST LED on the front panel to go from green to red
and the optional output (if specified) to switch to a ‘1’. Motion is stopped,
status bit 18 is set (possible stall), drive fault bit 1 is set (composite fault) and
drive fault bit 19 is set (stall condition). The drive will remove any pending
commands from its input buffer, and abort any program that is running.
Setting the mode parameter to ‘1’ will run a fault routine (if one is defined)
once the motor has stopped. No further action is taken if the mode
parameter is set to ‘0’.
The fault condition will clear when the next G (go), GH (go home), any ON
command or Z (reset) command is received. The output (if specified) will
revert to ‘0’ and the ST LED will change back to green. All status and drive
bits will be reset. When stalled, the optional output can be reset using the O
command, but this will not reset any status or drive faults.
Because distance units can be changed using scaling, you must set the
value of the EM system variable. If EM is positive, the encoder port X2
expects to see A leading B when the motor shaft rotates clockwise.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Parameter
on/off
Range
1 ON, 0 OFF
Units
See table of
distance
units
Default
0
error window
Mode on stall
0 to 65535
4000
0
1 run fault, 0 no fault
output
0 to 3 (0 = no output)
0
Example
1STALL1(100,1,3)
; Stall detect on. Use 100 step error window
; Run fault if stall detected and turn ON o/p 3
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6. COMMAND REFERENCE 167
[1] The error window is measured in motor steps with LOADENC and
SCALE disabled, load steps with LOADENC enabled, and user steps with
SCALE enabled.
Note
[2] If scaling is enabled, the value given in the error window will remain the
same, but is now in user units.
[3] Drive status LED will turn red after a stall occurs (reset as for optional
output)
[4] Position maintenance parameters can only operate correctly after
MOTOR, LOADENC, SCALE and the EM variable have been correctly
configured.
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168 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
STATUS
STATUS of Drive
Syntax
aSTATUS
Units
-
Range of ‘n’
Default
-
See also
-
Use this command to check the state of a drive. It is intended for set-up
purposes rather than for use when a program is running.
Description
Immediate or buffered, can’t be used in a labelled block, not saved by SV
Properties
Example
1STATUS
;checking the configuration and state of a drive
1STATUS
*ViX500IM-Stepper Copyright 2003 Parker-Hannifin
*Firmware: REV 2.1bD-
*Serial number: ..541935.00.1.1.CcD-ViX500IM
*Control card revision 2
Stepper drive
*Power card revision 3
Power stage E500
*
*
*FPGA_ID (read)......... 20b0
*
*MOTOR TYPE ............ 255
FPGA_ID (file)....... 20b0
RESOLUTION .......... 4000
*CONT. STALL CURRENT ...
4.5 Amps
*
*
*MOTOR SUPPLY...........
*I/O SUPPLY.............
*INTERNAL TEMPERATURE...
*
79 V
23 V
49 C
AUX SUPPLY........... 5.1 V
I/O CONFIGURATION.... 8160
HEATSINK TEMPERATURE. 47 C
*INCREMENTAL INDEXING (MI)
*POS.MAIN.WINDOW...........10
*VELOCITY (V)........... 1.00
*ACCELERATION (AA)...... 10.0
*CURRENT POSITION (PT).. 0
STALL WINDOW..........4000
DISTANCE (D)......... 4000
DECELERATION (AD).... 10.0
ERROR (PE)...........
0
*POSITION MODULUS (PM)
0
*
*AXIS: READY
*DRIVE FAULTS (DF): 0000_0000_0000_0000_0000_0000_0000_0000
*DRIVE STATUS (ST): 0000_0000_1000_0000_0001_0000_0000_0010
*USER FAULTS (UF): 0000_0000_0000_0000_0000_0000_0000_0000
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6. COMMAND REFERENCE 169
STOP
STOP Input
Syntax
aSTOPon/off(mode)
Description The STOP Input command determines the ‘stop input’ functionality of input 1.
When input 1 is active, IS = 1XXXX. The on/off parameter enables/disables
the stop input taking the values 1 for ON and 0 for OFF and has a default
value of OFF.
The mode can be set as follows:
0 Stop motion when input 1 is active (IS = 1XXXX) and abort the user
program (default setting).
1 Stop motion when input 1 is active (IS = 1XXXX), but continue the
user program which is able to execute further commands.
If stop input 1 is active (IS = 1XXXX), then status flag 28 (ST4.4) will be a ‘1’.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
1RUN:
1MC
;start the move
1STOP1(1)
1G
;enable the stop input & program continue
;input 1 goes active during motion
1TR(IP,=,1)
;wait for input 1 & in position settle time
1”*STOPPED” ;*STOPPED transmitted when motion has halted
1IF(ST4,=,XXX1XXXX)
1”*INPUT=1”
1END
The stop input only stops indexed motion. It has no effect on following or
step & direction (MP) modes.
Note
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170 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
SV
Save configuration
Syntax
aSV
Units
-
Range of ‘n’
Default
-
See also
Z
-
Description When the SV command is issued, the current controller system variables and
user programs are stored in non volatile memory. Any data saved, will be
restored following the next power-ON cycle.
The number of write/save cycles is 1 million.
Normally, there will be a delay of approximately one-second before a
command following a save configuration is executed. If a program is running
or is being downloaded when the SV command is issued, a delay of 10
seconds is allowed for the program to terminate or to finish downloading.
After 10 seconds, if the program is still running or downloading a user fault is
generated – cannot execute command, drive not ready (bit 19).
Wait 1-2 seconds before sending any other command following an SV.
Immediate, can’t be used in labelled block
Properties
Example
1RFS
1A150.1
1SV
;return drive to factory settings
;acceleration set to 150.1rps
;save current settings
;reset drive
2
1Z
1A
;report current value of acceleration
*150.1
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6. COMMAND REFERENCE 171
T
Time delay
Syntax
aTn
Units
seconds
Range of ‘n’
0.05 to 10
Default
none
See also
IF
Description The T command pauses program execution for the time specified by the
delay parameter. Timing resolution is to within 50ms increments. Any time
value specified within the range 0.05 to 10 seconds will be rounded down to
the nearest 0.05 second increment. Any value programmed outside of this
range will generate an error (*E out of range).
The receipt of an immediate command whilst executing a time delay causes
the delay to end.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
4T6
; delay for 6 seconds
4T0.38
; delay 0.35 seconds (rounded down)
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172 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
TR
Wait for trigger
Syntax
aTR(system_variable,relation,value)
Description The TR command pauses command execution until the trigger condition is
met.
The trigger condition is met if the relation between system_variable and
value is true.
Valid relations for the comparison are:
=
Equals
<>
>
<
Does not equal
Greater than
Less than
Value is a number generated by the system_variable being tested. Refer
to the system variables table for more information.
Also see system variable Trigger Timeout (TT).
Refer to the table of system variables that can be used for conditional
control.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
3TR(PA,>,2000)
3TR(IN,=,X11XX)
; wait for position absolute to be >2000 steps
; wait for user inputs 2 and 3 to be high
If you wish to use the TR command during motion, command queuing
(system variable CQ) must be set for continuous execution (CQ=0).
Notes
Issuing a K or S from the command line will clear a trigger condition.
If the input command buffer is filled whilst waiting for a trigger *E will be
reported (assuming EX is set to speak whenever), and the status LED will
continually flash red then green. To clear this condition, cycle the power.
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6. COMMAND REFERENCE 173
USE
Use
Syntax
aUSE(profile)
Units
-
Range of ‘n’
Default
-
See also
PROFILE
1 to 8
Description The USE command copies the pre-defined profile to the current move
parameters.
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
1PROFILE1(200,20,1500,25)
1PROFILE2(150,200,4800,45)
1USE(2)
;define profile 1
;define profile 2
;use motion profile 2
WARNING
If you attempt to use an undefined PROFILE, PROFILE0 is used
with no error indication.
V
Velocity
Syntax
aVn
Units
see SCALE
Range of ‘n’
0.001 to 50.000
Default
1
See also
PROFILE
SCALE
Description Velocity command V sets or reports the programmed velocity of the motor.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
To set the velocity of axis 3 to 25 rps, type......................
To report the current velocity of axis 3, type....................
3V25
3V
The controller responds with............................................
No units are reported.
*25.0
[1] A programmed value of velocity can be overwritten by a PROFILE
command once the USE command has been issued, but subsequent values
of velocity can be programmed to override the value in use.
Note
[2] With SCALE enabled, a maximum value of 5000 (user-units) is permitted.
[3] If a value is entered that requests a velocity greater than the maximum
velocity set in the MOTOR command, *E will be returned.
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174 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
W
Write system variable
Syntax
aW(system_variable,value)
Description The W command allows you to set a specified system variable to a
particular value.
Refer to the table of system variables for more information.
Immediate or buffered, can be used in labelled block, saved by SV
Properties
Example
Set system variable DC to 1
Report the current value of system variable DC
The controller responds with ......................................
2W(DC,1)
2R(DC)
*1
See also R command.
Note
Z
Reset
Syntax
aZ
Units
-
Range of ‘n’
Default
-
See also
SV
-
Description The Z command resets the drive’s controller. This is similar to power cycling
the controller. Upon restart, the user program following the START: label will
execute only if the ARM command = 1X.
Wait 1-2 seconds before sending any other command following a Z.
Any commands pending before the Z is issued will be terminated and any
buffers and user stacks cleared.
Immediate or buffered, can’t be used in labelled block, not saved by SV
Properties
Example
To reset all drives, type...................................................
0Z
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6. COMMAND REFERENCE 175
#
Set comms address remotely
Syntax
a#n
Units
-
Range of ‘n’
Default
0
See also
-
1 to 255
Description This command (#) allows you to set the unit address via software. It allows
addresses up to 255 to be used. Upon receipt of the command, the
controller will send a #n+1 command along the daisy chain provided the echo
mode is set. Once received you must send a SV command to save the
address configuration.
To address a specific axis place the current address ‘a’ before the # symbol.
0#0 is not supported on this product.
Auto addressing can be used, for example sending #1 to axis 1 of a 3 axis
system will echo back #4 (meaning the axes have been given addresses 1, 2
& 3). Save the address configuration of all axes using the command 0SV.
The command can be used to specify the style of communications required,
for example 1#4(232) will set axis 1 to address 4 and specifies the use of
RS232. Note this form of command is immediate and is auto saved as soon
as you hit return, consequently take care. If you have no RS485 interface
fitted to your PC and you issued 1#4(485)* the drive will switch to RS485 and
will auto save the change, leaving you without any means of communicating
with the drive. See Forcing a Hardware RFS in the Maintenance &
Troubleshooting section.
Auto addressing can be used with style of communications type commands,
allowing such commands as #n(232) or #n(485) where n is the primary axis
you wish addressing to start from.
*You must have a RS485 drive module fitted for the drive to recognise the
command.
Immediate or buffered, can’t be used in labelled block, saved by SV
Properties
Example
If a system with axes 1,3,7,2 (in that order) is sent the command #10,
the axes will become 10, 11, 12, 13. Note that the #10 will not be
displayed on your PC screen, but you will receive the response #14
after pressing the enter key.
For multi-axis systems using RS232, auto addressing can be used when
the drives are interconnected via the RJ45 connectors (X6 & X7).
Primary communication needs to be via the front panel D-type X3
connector.
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176 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
“ “
Quote command
Syntax
a“ “
Units
-
Range of ‘n’
Default
-
See also
-
-
Use QUOTE to send messages to other drives or displays. Using the RS232
link, up to 20 ASCII characters are available to transmit the required
command or message in exactly the way in which it was entered. Only
ASCII characters between decimal 32 (space character) and decimal 126
(tilde ‘~’ character) inclusive are allowed.
Description
Immediate or buffered, can be used in labelled block, not saved by SV
Properties
Example
1DECLARE(EXAMP)
1EXAMP:
;declare label
;label EXAMP
;quote TEST
1”*TEST”
1END
;end label
1GOTO(EXAMP)
*TEST
;goto label EXAMP
;output message
To speed-up communications when addressing a number of drives, precede
the quoted text with an asterisk ‘*’. All other axes, apart from the one being
addressed, will ignore the quoted text and this will save processing time.
Note
The command can be used to debug routines that do not appear to run. Add
a quote command to the suspect portion of code and see if it appears when
the code is executed.
Use quote commands sparingly as they can use a lot of available program
memory.
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6. COMMAND REFERENCE 177
System Variables
Var
Name
R W
Range/default value
AB Analogue
Deadband
Y Y 0 to +255, default = 0
AI
Analogue Input
Y N -2047 to +2047
AO Analogue Offset
BR BAUD rate
BU Buffer usage
Y Y -2047 to +2047, default = 0
Y Y 9600 or 19200 bits per second (9600 default)
Y N 0 to 100% of program buffer used
CQ Command queuing Y Y 1= Pauses until move complete (default)
0= continuous execution
DC Damping
Configuration
Y Y 0 = settling time damping OFF (default)
1 = settling time damping ON
DF Drive Fault status
DF1 Drive Fault status
DF2 Drive Fault status
DF3 Drive Fault status
DF4 Drive Fault status
Y N See below:
Y N First byte of 32-bit DF variable
Y N Second byte of 32-bit DF variable
Y N Third byte of 32-bit DF variable
Y N Fourth byte of 32-bit DF variable
EI
Encoder Input
Y Y 0=step/dir, 1=cw/ccw, 2=quad ABZ, de-energise drive
to change
EM Encoder count per Y Y 1 to 4200000 (default 4000)
rev.
EO Encoder signal
Output
Y Y 0=step/dir, 1=cw/ccw, 2=quad ABZ, de-energise drive
to change
EQ Echo Queuing
ES Energise Sense
Y Y 0=normal, 1=wait for <CR>, 2=cmd response only
Y Y Sets the sense of the external enable/enable_bar
signal
0=low signal to enable
1=high signal to enable
EX Comms. Response Y Y 0= speak when spoken to, echo off, default for RS485
Style & Echo
Control & Physical
Interface (RS232)
1= speak whenever, echo off
2= speak when spoken to, echo on
3= speak whenever, echo on, default for RS232
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178 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Var
Name
R
W
Range/default value
Refer to CANopen user guide
FB
Fieldbus Baud
FC Fieldbus Control
FN Fieldbus Node ID
Refer to CANopen user guide
Refer to CANopen user guide
FP
Fieldbus Protocol
Y Y
Y Y
Refer to CANopen user guide
HF Home Final
velocity
Sets the final velocity of the home move
Range: 0.001 to 5.0 rps (default 0.1)
Input pull-up/down, output source/sink configuration
0 to 8191 default:8160
IC
Input/Output
Configuration
Y Y
N N
IN
Inputs (on drive)
Local drive inputs 1 to 5, same format as IS command
Fieldbus expansion inputs, IN1=bank1, IN2=bank2.
1= In position or 0= not yet in position
1 to 500mS, default=10mS
INn Inputs (expansion) N N
IP
IT
In Position flag
In Position Time
Y N
Y Y
Y Y
MS Motor Standby
Range 10% to 100% of programmed current
(default 50%)
MV Moving
Y N
Flag 1= moving or 0 = not moving
PA Position Actual
PE Position Error
Y N* -2,147,483,648 to 0 to 2,147,483,647
Y N* +/- 65535
PF
PI
Position Following Y Y
-2,147,483,648 to 0 to 2,147,483,647
Position
Y Y
Y Y
Y N
-2,147,483,648 to 0 to 2,147,483,647
Incremental
PM Position Master
-2,147,483,648 to 0 to 2,147,483,647 Note: a write to
PM sets the modulus
PR Position
Registration
The primary (X2) feedback position (PA) on the last
active transition on input 2 (start of valid REG move).
Range: -2,147,483,648 to 0 to 2,147,483,647
PS Position
Secondary
Y N
The PM count position on the last active transition on
input 1 (falling edge viewed using IS).
Range: -2,147,483,648 to 0 to 2,147,483,647
PT
Position Target
Y Y
Y N
-2,147,483,648 to 0 to 2,147,483,647 Trajectory
generator open loop target position
RB Ready/Busy flag
Flag 0= ready or 1= busy
RM Registration Move Y N
Flag 1= reg move in progress
0 = not doing reg move
RV ReVision of
software
Y N
Y Y
x.yy major.minor
SC S Curve
configuration
0 = S curve accel/decel disabled (default)
1 = S curve accel/decel enabled
reserved
SN Serial number
Y N
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6. COMMAND REFERENCE 179
Var
Name
R
W
Range/default value
ST
Status of indexing Y N
See below
ST1 Status of indexing Y N
ST2 Status of indexing Y N
ST3 Status of indexing Y N
ST4 Status of indexing Y N
First byte of 32-bit ST variable
Second byte of 32-bit ST variable
Third byte of 32-bit ST variable
Fourth byte of 32-bit ST variable
TT
Trigger Timeout
Y Y
Optional timeout for trigger command 0-65 seconds in
0.01 increments. User status bit 8 is set to indicate
timeout occurred before trigger condition met. Bit is
clear if trigger condition met before timeout. The
default time is = 0.00 (no timeout).
UF User program
Fault status
Y N
See below
UF1 User Fault Status
UF2 User Fault Status
UF3 User Fault Status
Y N
Y N
Y N
Y N
First byte of 32-bit User Fault status word
Second byte of 32-bit User Fault status word
Third byte of 32-bit User Fault status word
Fourth byte of 32-bit User Fault status word
UF4 User Fault Status
*Can be set to 0 only.
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180 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Drive Faults
Bit
Bit
Tested
Stop
Type
DF Information
Composite fault
1
2
3
4
5
6
7
8
DF 1.1
DF 1.2
DF 1.3
DF 1.4
DF 1.5
DF 1.6
DF 1.7
DF 1.8
K
T
+/-15V supply rail
K
K
R
R
Motor HV under-voltage trip point reached
Motor HV over-voltage trip point reached
CD
K
R
T
Vio over-voltage trip point reached
Encoder / Auxiliary 5V under voltage trip
K
SLEEP Impending power loss
(24V – logic supply)
9
DF 2.1
DF 2.2
DF 2.3
DF 2.4
DF 2.5
DF 2.6
DF 2.7
DF 2.8
DF 3.1
DF 3.2
DF 3.3
DF 3.4
DF 3.5
Reserved
Reserved
10
11
12
13
14
15
16
17
18
19
20
21
CD
CD
CD
K
R
R
R
T
Motor over temperature
Ambient over temperature
Drive over temperature
Incompatible firmware version
Unrecognised power stage
Controller diagnostic failure
Output stage over current
Output driver over current
Tracking limit exceeded : Stall condition
Reserved
K
T
K
T
K
R
R
R
CD
C
CD
R
Drive disabled – check enable input and state
of ES variable
22-24 DF 3.6/8
Reserved
25
26
27
DF 4.1
DF 4.2
DF 4.3
K
K
K
T
T
T
Watchdog 1
Watchdog 2
Watchdog 3
Reserved
28-31 DF 4.4/7
32 DF 4.8
CAN I/O errors
Key:
C : Performs controlled stop.
CD : Controlled stop then de-energise
K : Performs motion kill – quick stop. Possible instant de-energise depending on fault source.
R : Recoverable without power cycle
SLEEP : Drive shuts down completely – no comms, requires power-cycle to recover
T : Terminal (requires power cycle or repair before drive will energise / operate once again)
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6. COMMAND REFERENCE 181
Status Bits
Bit
Bit
Status Information
Number
Tested
1
ST1.1
ST1.2
ST1.3
ST1.4
ST1.5
ST1.6
ST1.7
ST1.8
ST2.1
ST2.3
ST2.4
ST2.5
ST2.6
ST2.8
ST3.1
ST3.2
ST3.3
ST3.4
ST3.5
ST3.6
ST3.7
ST3.8
ST4.1
ST4.2
ST4.3
ST4.4
ST4.5
ST4.6
ST4.7
Command processing paused
2
Looping (command executing)
Wait for trigger (input)
3
4
Running program
5
Going home
6
Waiting for delay timeout
Registration in progress
7
8
Last trigger command timed out
Motor energised
9
11
12
13
14
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Event triggered - active until trigger inputs are reset
Input in LSEL not matching label
-ve limit seen during last move
+ve limit seen during last move
Reserved
Executing a position maintenance move
Possible stall
Moving (in motion)
Stationary (in position)
No registration signal seen in registration window
Cannot stop within the defined registration distance
Reserved
Reserved
In motion, 0 for positive motion, 1 for negative motion
Reserved
Following enabled = 1, not following = 0
STOP input active
Load mounted encoder enabled
Scaling enabled
Command input inverted
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182 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
User Faults
Bit Number Bit Tested
UF Information
Value is out of range
1
2
UF1.1
UF1.2
UF1.3
UF1.4
UF1.5
UF1.6
UF1.7
UF1.8
UF2.1
UF2.2
UF2.3
UF2.4
UF2.5
UF2.6
UF2.7
UF2.8
UF3.1
UF3.2
UF3.3
UF3.6
UF3.7
UF3.8
UF4.1
UF4.2/8
Incorrect command syntax
Last label already in use
Label of this name not defined
Missing Z pulse when homing
Homing failed - no signal detected
Home signal too narrow
Drive de-energised
3
4
5
6
7
8
9
Cannot relate END statement to a label
Program memory buffer full*
No more motion profiles available
No more sequence labels available
End of travel limit hit
10
11
12
13
14
15
16
17
18
19
22
23
24
25
26 to 32
Still moving
Deceleration error
Transmit buffer overflow
User program nesting overflow
Cannot use an undefined profile
Drive not ready
Save error
Command not supported by this product
Fieldbus error
Input buffer overflow
Reserved
*sends an ASCII ‘bell’ character to indicate a buffer overflow condition.
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6. COMMAND REFERENCE 183
Command List
Command
Description
Acceleration/Deceleration
Acceleration
A
AA
Deceleration
AD
Enable event triggered code
Continue
ARM
C
Clear user code
Distance
CLEAR
D
Declare
DECLARE
E
Enable/disable communications
Exit from loop
Configure following
Feed rate override
Go
EXIT
FOLLOW
FRATE
G
Go home
GH
Go to subroutine
Go to routine
GOSUB
GOTO
H
Change direction
Configure homing
Test condition
Input status
HOME
IF
IS
Kill
K
Configure limit inputs
List user program
LoadEnc settings
Repeat user code
Label select
LIMITS
LIST
LOADENC
LOOP
LSEL
M
Mode
Motor settings
Output
MOTOR
O
Shutdown motor power
Turn on motor power
OFF
ON
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184 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Command
POSMAIN
Description
Position maintenance
Define move profile
Pause
PROFILE
PS
Report system parameter
Registration move
Return to factory settings
Stop
R
REG
RFS
S
Scale settings
SCALE
STALL
STATUS
STOP
SV
Stall detect
Report status of drive
Stop input
Save configuration
Time delay
T
Wait for trigger
Use
TR
USE
V
Velocity
Write system variable
Reset
W
Z
Set comms address remotely
Quote command
#
“ ”
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7. MAINTENANCE & TROUBLESHOOTING
185
7. ViX Maintenance andTroubleshooting
Maintenance
ViX drive systems do not require any routine maintenance, but occasional checking of the
following points is recommended.
Motor inspection
Periodically check the motor to ensure that the mounting bolts and couplings are tight.
Check that the motor cables are not being damaged by moving parts and are not being
pulled or forced into tight bends during machine operation. Check all cable connectors and
particularly the safety earth connection.
Drive inspection
Check that the drives are clear of loose material and that there is adequate clearance to
allow a free flow of air through the ventilation slots. Check that drive fixings are tight and that
the motor screen connection is secure.
Troubleshooting
IMPORTANT NOTE - ensure that power is turned off before any connections are
removed or changed. Removing a drive with power applied can turn a recoverable fault
situation into a major problem.
WARNING – Risk of damage and/or personal injury
The ViX drives described in this user guide contain no user-serviceable parts.
Attempting to open the case of any unit, or to replace any internal component, may
result in damage to the unit and/or personal injury. This may also void the warranty.
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186 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Communication Problems
When attempting a Connect from the Terminal menu, if the connection fails with the following
error message:
Figure 7-1. Communications Failure Error Message
Check the following:
1. Ensure the serial port configuration is set correctly in EASI-V and you select the correct
serial COM port.
2. An RS232 communications link can be loop tested by removing the communications D-
type plug where it connects to the drive and placing a short between pins 4 and 5. In this
condition, any command sent from the terminal window should be echoed back, confirming
the integrity of the overall RS232 link. If this does not happen, check the RS232 lead
connections and the PC serial port.
Note: wiring of the RS232 lead must conform to that recommended in the Hardware
Installation section, a null modem cable cannot be used.
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7. MAINTENANCE & TROUBLESHOOTING
187
Drive LED Indicators
ST
HV
FB
Colour
Function
X1
Green HV OK
Orange
Red
HV OK and feedback fault
Feedback fault with no HV
10
X3
1
Colour
Function
6
9
Green Ready (energised)
Orange
Red
Drive OK but de-energised
Drive fault
5
Colour
Function
Green Comms OK
Orange
Red
Comms status
Comms fault
6
X4
1
11
15
1
5
10
Figure 7-2. Drive LED Indicators
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188 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Complete LED Diagnostics
An EASI-V version of this table is available for quick on-line viewing.
LED Colour(s)
Flash rate
none
none
none
-
Functional description
motor supply OK
HV
HV
HV
HV
green
orange
red
motor supply under voltage (<16V)
motor supply over voltage (>98V)
no motor supply
off
ST
ST
ST
ST
ST
green
none
drive OK and motor is energised
orange
red
none
drive OK but motor is de-energised
drive fault (see DF report for more information)
none
red/green
red/green
1 second
0.25 second communications receive buffer over-flow. Only
a power-cycle clears this condition.
ST
ST
red/off
red/off
0.5 second
only on power-up following a flash upgrade.
Indicates bad truncated FPGA file.
1 second
only on power-up following a flash upgrade.
Indicates a CRC error.
ST
FB
FB
off
-
no logic supply. All other LEDs will also be off.
fieldbus communications OK. Operational state.
green
green
none
1 second
fieldbus communications OK. Pre-operational
state.
FB
FB
red
off
none
-
fieldbus communications fault
no fieldbus option
Table 7-1. Status Bits Description (continued)
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7. MAINTENANCE & TROUBLESHOOTING
189
Forcing a Hardware RFS
Pin 2 of serial communications D-type connector X3 is for use as a hardware method of
forcing a return to factory settings. It may be used when it is not possible to perform an OFF
or RFS command. Such a situation may be switching to RS485 mode but having no RS485
interface on the controlling PC, forcing an RFS command will allow you to return to RS232
operation.
To force a hardware RFS follow the procedure detailed below, note you will loose any
program in memory and system variables will return to their default values:
1. Turn off drive HV and +24V.
2. Connect X3 pin 2 (MODE input) to X3 pin 3 (0V).
3. Turn drive +24V on (and HV if required). On power-up, any program present in
memory is cleared and ALL system variables are set to their initial factory default
value.
4. Establish RS232 communications using Easi-V and type in 1SV and press [Enter]
to store the changes.
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190 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Drive Faults
The following notes give you a better understanding of what is happening within the drive
when a particular drive fault is reported. The explanations assume a ViX drive indexer
firmware revision of V2.0.
Composite fault
This flag indicates that a drive fault has occurred and that the fault is still present. The
original fault may have been registered by the FPGA (power card hardware) or by the drive’s
microprocessor. See the remaining fault status bits for the source(s) of the fault.
+/-15V Supply rail failure
This fault is detected by the drive hardware, which de-energises the power stage at the
same time as informing the microprocessor of the fault.
Indexed motion will be stopped instantly and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
The firmware will not allow an energise whilst this fault is present.
Motor HV under-voltage & over-voltage
The software monitors the HV every 500µS and compares the value to the under- and over-
voltage trip values. If the HV is >98V or <16V, the following actions will be taken:
Indexed motion will be stopped instantly and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
The drive HV supply is measured when the MOTOR command is executed. If no HV is
present (reading of 0 volts) then 80 volts is assumed to be the operating level. The reset
threshold is then calculated as follows:
IF HV > 30 Volts THEN
// if supply is normally greater than 30 volts...
// HV must be >30 volts for ON command to work
//
// HV must be greater than (current supply voltage –
// 15%) for ON command to be successful
// supply is below nominal min but within tolerance...
// HV must be greater than absolute minimum
// specification (24Vdc -15%) for ON to work
reset_threshold = 30 volts
ELSE IF HV >= 24 volts THEN
reset_threshold = HV * 0.85
ELSE IF HV >= 20.4 THEN
reset_threshold = 20.4 volts
ELSE
reset_threshold = 16 volts
ENDIF
// set to trip out threshold
This means that a drive fed from a > 30 volts HV supply will not be able to be energised via.
the brake supply. Drives fed from a 24 Vdc HV supply need to have the brake supplied from
a separate non-switched feed.
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7. MAINTENANCE & TROUBLESHOOTING
191
Vio over-voltage
Over-voltage will mean that the 24V supply is out of tolerance.
Indexed motion will be stopped instantly and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
Encoder/Auxiliary 5V under voltage
This 5V supply is read every 500uS. This fault is set if it dips below 4.5V.
Indexed motion will be stopped instantly and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
The firmware will not allow an energise whilst this fault is present.
Impending Power loss (24v – Logic supply)
This input is triggered when the 24V supply is removed. The indexer will shut down when
the 24V input drops below approximately 17.5V and will require a power cycle to recover.
At the moment that the impending power loss is detected, the following actions are taken:
Turn off interrupts (Drive will no longer communicate)
Turns off the power stage
Indicate indexer fault (STATUS LED = RED)
Loop forever until logic supply can no longer keep the micro alive.
If the logic supply is experiencing dips, then this may manifest itself as locked up comms. A
common mistake when running off 24V HV, is to wire HV and logic to the same power
supply. If an end stop is driven into, then the current drawn may be sufficient to collapse the
HV and hence the logic supply. The drive faults with impending power loss, and de-
energises the power stage, so the load is removed and the voltage recovers. The indexer
however, appears to have locked up but has actually gone into a sleep mode.
Motor Over Temperature
Indexed motion will be stopped in a controlled manner and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
Ambient over temperature
When the temperature trip point is reached :
Indexed motion will be stopped in a controlled manner and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
Drive over temperature
When the temperature trip point is reached :
Indexed motion will be stopped in a controlled manner and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
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192 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Incompatible firmware revision
The FPGA firmware code contained in FLASH memory is not compatible with the controller
hardware and the drive cannot be used.
This message is likely if in future, customers update old hardware with the latest FPGA
firmware, which may require specific hardware to function.
The firmware will not allow an energise whilst this fault is present.
Unrecognised power stage
The power stage fitted to the drive is not recognised by this revision of firmware.
In this case, a customer may have down-graded their firmware. The required action is to
update the drive firmware to a version that supports the fitted power stage.
The firmware will not allow an energise whilst this fault is present.
Controller diagnostic failure
This is set if the controller fails one of its self test routines. Further diagnostic information is
available from the test commands.
The firmware will not allow an energise whilst this fault is present.
Output stage over current
This is monitored in hardware. The power stage will be de-energised by hardware and
report the fault condition to the drive firmware.
Indexed motion will be stopped instantly and the drive firmware will then set the de-energise
state in order to match the condition of the hardware.
If there is a user program running and the fault label is armed it will be run.
What might cause this fault?
The most common cause is poor or incorrect motor wiring. Other possibilities are a damaged
motor winding or damaged power stage.
Output driver over current
The output stages are monitored in hardware and this bit will indicate that a fault has
occurred (e.g. the output has been short-circuited).
Indexed motion will be stopped instantly and the drive will then de-energise.
If there is a user program running and the fault label is armed it will be run.
Tracking limit exceeded (Position Error)
For the ViXIM this drive fault indicates a stall condition, assuming stall detection is enabled.
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7. MAINTENANCE & TROUBLESHOOTING
193
A note about “Controlled stop”.
A controlled stop will be attempted if the trajectory generator was commanding motion at the
time of the fault. If the commanded motion was due to following, then the indexer will disable
following, that is there will be no ramp down of velocity.
If the drive was following and doing a superimposed move, then the superimposed move will
be subject to the ramp down of velocity and once that has stopped, following will be
disabled.
On base drives there is never any controlled deceleration of the motor. A fault will de-
energise the drive.
On a ViXIM in MB mode, the trajectory generator is used to control the velocity, so those
faults that lead to a controlled stop will act in a similar way to other indexed moves.
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194 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Returning the System
If a drive module is found to be faulty, you should contact your Parker Automation
Technology Centre or the machinery manufacturer who supplied the product. Equipment for
repair should NOT be returned directly to Parker without prior authorisation. Repairs will be
carried out by Parker but will be processed via your supplier.
Parker may at their discretion authorise direct shipment to and from Poole, Offenburg or
Rohnert Park, but only by prior arrangement with your supplier. Existing UK, European and
USA customers who purchase equipment directly from Parker should contact Poole,
Offenburg or Rohnert Park for further information (contact numbers are at the front of this
User Guide).
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8. HARDWARE REFERENCE 195
8. Hardware Reference
Drive Specification – ViX250IM, ViX500IM
Functional Specification
Parameter
Value
Amplifier type
MOSFET chopper
User resolution
Freely programmable between 200 and
51,200 steps/rev
Nominal chopping frequency
Protection circuits
16kHz
Short circuit (phase-to-phase, across phases
and phase to ground), motor overcurrent,
over/under voltage, logic supply fault, over
temperature, ext. 24V reversed, encoder
fault
Maximum output current
ViX500: 5.6A rms (8A peak)
ViX250: 2.8A rms (4A peak)
Output current adjustment
Standby current reduction
Motor HV supply input
Programmable from 0.1A to maximum rated
current
10% to 100% of programmed current
(software-selectable)
ViX500: 48-80V DC +5% -15%
ViX250: 24-80V DC +5% -15%
Controller supply input
24V DC, 250mA (no outputs loaded, no
encoder fitted). Fieldbus expansion module
requires additional 50mA
LED status indicators (tri-colour)
Motor inductance range
HV fault, drive fault and comms status
0.5 - 10mH recommended
Table 8-1. Functional Specification
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196 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
Indexer Specification
Parameter
Command Interface
Value
+/- 2,147,483,647 steps
Position range
Velocity range
0.001 to 50 revs/sec
Acceleration/deceleration range
Positioning modes
0.1 to 99999.99 rev/sec2
Incremental, absolute, registration,
continuous run
Communication
Data format
8 data bits, 1 start bit, 1 stop bit, no parity,
optional echoback, Xon/Xoff supported
Baud rate
9600 / 19200
Address setting range
RS232 connection
1 -255 by software
2 wire plus ground
Digital Inputs
User programmable inputs
Dedicated inputs
Input levels (24V)
Input levels (5V)
5
Home, + limit, - limit, registration, stop
Logic high >14V, logic low < 4V
Logic high >3.5V, logic low < 1V
4K7
Input impedance
Digital Outputs
User-programmable outputs
Output levels
output high
3
+22V +10% -15% of supply
output low
0.5V max (saturation of lower NPN transistor)
50mA maximum per output source
50mA per output sink
Output current rating
Table 8-2. Indexer Specification
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8. HARDWARE REFERENCE 197
Drive Environment Specification
Parameters
Environment
All drive types
Pollution degree 2, Installation category II
0 to 50°C ambient
Operating temperature range
0 to 40°C natural convection
40°C to 50°C airflow is required through the
drive at better than 0.5m/s air velocity
entering the drive.
Storage temperature range
Humidity
-20 to 70°C
5 to 95% non-condensing
Natural convection
Plastic/Aluminium heatsink
IP20
Cooling
Housing
Protection class
Weight
0.55kg
Table 8-3. Drive Environment Specification
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198 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
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APPENDIX A 199
Appendix A
Discrete Power Supply Recommendations
If the XL_PSU is not being used individual ViX drives can be powered from
transformer/bridge rectifier power supplies of the type shown in Figure A-1. This design
suggests suitable component values for powering particular drive types, but can be adapted
to power more than one drive provided component power ratings are not exceeded.
Bridge rectifier rated at
4A min. for ViX250 drive
8A min. for ViX500 drive
AC Fuse
TD/HBC
Line Fuse
TD/HBC
Bridge rectifier
must have adequate cooling
6K8 2.5W HV bleed resistor
WARNING this will run hot
EMC
filter
X1.10
+
X1.9
X1.8
Capacitor 3300µF for ViX250
6600µF for ViX500
Isolating
transformer
with screen
1metre max. from
capacitor to drive
Figure A-1. Drive Power Supply
Note: The saftey earth must be reliably earthed at X1.8. The –DC input should also be
connected to earth at a convenient point.
Supply Wiring
2
Use approved mains cable (at least 0.75mm ) for primary wiring and route it away from
secondary and signal wiring. Power input wiring must have a voltage withstanding rating of
at least 1000V AC RMS. Note this figure is a test voltage, not the rated working voltage of
the cable. Power input and motor wiring must be kept separate from signal wiring and
insulated from operator access.
Note: secondary wiring must have a current rating in excess of the AC fuse rating.
Transformer Sizing for the DC Supply
A DC input is required by the drive, which can be generated by rectifying and smoothing the
secondary voltage of a transformer. This is an unregulated supply so do not select a
secondary voltage which generates a DC output greater than 80V.
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200 VIX IM MICROSTEPPER INDEXER DRIVE USER GUIDE
The size of transformer required for a stepper drive installation depends very much on the
application and on the maximum shaft power delivered by individual motors.
It is worth noting that in a one-off or low volume application it is usually preferable to be
slightly generous in sizing the transformer, rather than spend a great deal of engineering
effort trying to calculate the minimum possible rating. In low-power systems the potential
savings in transformer cost are not large, although size and weight may also be a
consideration. In a higher volume application the same principles apply to the prototype
installation, but measurements of the supply current drawn under working conditions will give
a useful guide to the final specification required.
Fuses
Fuses should be time delay, high breaking capacity and should be rated for the number of
drives and expected in-rush current.
AC Fuse
The secondary AC fuse is intended to protect power supply wiring. Calculate the value of
fuse required using:
1.5 X secondary VA
in amps
secondary voltage
Line Fuse
Fit line fuses to protect the transformer primary and associated wiring. If you cannot identify
the live wire, fuse both phase conductors. Calculate the fuse value using:
×
1.5 VA
in amps, but needs to be a minimum of 2A to cope with the in-
supply volts
rush current.
Fuse types should be anti-surge HBC (High Breaking Capacity).
Note: If the application requires a power dump, use a Digiplan power supply such as the
PL1100.
CAUTION
Ensure that all power supply components are mounted away from operator access, as
high voltages and hot surfaces are present in normal operation.
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APPENDIX B 201
Appendix B
Motor Wiring Identification Tables
The following tables supply serial and parallel connection information for a range of different
motor types.
MAKE
TYPE
A+
Blue
2
A-
B-
Red
3
B+
NOTES
Parker
SY Series
Link White & Black
Link Grey & Yellow
SY56_T Only
Link 2 & 3
Link 6 & 7
8-Lead
56-T.Box
T.Box
Green
Brown
1
8
4
1
5
4
Parker
VS Series
Link Red/Wh & Yellow/Wh
Link Orange/Wh & Black/Wh
Link Yellow & Blue
Link Orange & Brown
8-Lead
Cabled
Red
Red
Yellow
Black
Orange
White
Black
Green
Parker
Link Yellow & Blue
Link Orange & Brown
ES, QM, S &
ZETA Motors
Parker
8-Lead
Red
Black
White
Green
S10
Red
1
Black
3
White
2
Green Internally wired in series
TS/RS/RE Series
Link 5 & 6
Link 7 & 8
NPS
4
Parker
OEM Series
Parker
OS Series
Parker
STT/STL
8-Lead
23-Frame
Link Yellow & Blue
Link Orange & Brown
Link Yellow & Blue
Link Orange & Brown
Link Blue & Violet
Link White & Grey
Link 5 & 6
Link 7 & 8
Red
Red
Red
1
Black
Black
Yellow
2
White
White
Pink
3
Green
8-Lead
LVD10
Green
8-Lead
T.Box
Black
4
Pacific Scientific
White/Black/Orange &
White/Red/Yelllow : N/C
Link Wh/Blk & Wh/Org
Link Wh/Red & Wh/Yel
6-Lead
8-Lead
T.Box
Black
Black
1
Orange
Orange
3
Red
Red
2
Yellow
Yellow
4
Link 5 & 6, Link 7 & 8
Astrosyn,
Rapidsyn,
Slo-syn
6-Lead
Red
1
Red/Wh
3
Green
4
Grn/Wh White & Black : N/C
T.Box
(X6)
5
2 & 6 N/C
Slo-syn
Link Black & White
Link Org & Blk/Wh
8-Lead
Red
1
Red/Wh
3
Green
5
Grn/Wh
4
T.Box
(X8)
Link 2 & 6, Link 7 & 8
White & Black N/C
M.A.E
Grn/Wh
Red/Wh
6-Lead
8-Lead
T.Box
Green
Orange
5
Red
Red
8
Link Wh/Blk & Wh/Org
Link Wh/Red & Wh/Yel
Black
6
Yellow
7
Link 1 & 3, Link 2 & 4
Motor Connection Data - Windings in Series
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202
APPENDIX B
MAKE
TYPE
A+
A-
B-
B+
NOTES
Parker
SY Series
Link Brown & White
Link Black & Red
Link Blue & Grey
Link Yellow & Green
SY56_T Only
8-Lead
Blue
Green
Red
Brown
56-T.Box
T.Box
2
5
1
8
3
4
4
1
Link 1 & 2, Link 3 & 4
Link 5 & 6, Link 7 & 8
Parker
VS Series
Red &
Yel/Wh Red/Wh
Red &
Blue
Yellow & Orange & Black &
8-Lead
Cabled
Blk/Wh
White &
Brown
Org/Wh
Green &
Orange
Black &
Yellow
Parker
Red &
Blue
Black &
Yellow
White &
Brown
Green &
Orange
ES, QM, S &
ZETA Motors
Parker
8-Lead
P10
Red
1
Black
3
White
2
Green
4
Internally wired in parallel
TS/RS/RE Series
Link 3 & 6, Link 4 & 8
Link 1 & 5, Link 2 & 7
NPS
Parker
OEM Series
Parker
OS Series
Parker
STT/STL
8-Lead
34-Frame
Red
Black
White
Green
Internally wired in parallel
8-Lead
LVD10
Red &
Blue
Red &
Blue
Black &
Yellow
Yellow &
Violet
White &
Brown
Pink &
White
Green &
Orange
Black &
Grey
8-lead
T.Box
1 & 6
Black
2 & 5
3 & 8
Red
4 & 7
Pacific Scientific
Wh/Blk/
Orange
Orange
& Wh/Blk
Wh/Red/
Yellow
Yellow &
Wh/Red
6-Lead
8-Lead
T.Box
Orange & Yellow : N/C
Black &
Org/Wh
Red &
Wh/Yel
1 & 5
Red
1
3 & 6
Black
6
2 & 7
Green
4
4 & 8
White
2
Astrosyn,
Rapidsyn,
Slo-syn
6-Lead
Red/Wh & Green/Wh : N/C
3 & 5 N/C
T.Box
(X6)
Orange &
Grn/Wh
Slo-syn
Red &
White
Black &
Red/Wh
Green &
Blk/Wh
8-Lead
T.Box
(X8)
1 & 2
3 & 6
4 & 7
Red
5 & 8
Black
M.A.E
Grn/Wh
Black &
6-Lead
8-Lead
T.Box
White
Green & Red/White : N/C
Orange
Red &
Wh/Yel
Yellow &
Wh/Red
Wh/Or & Blk/Wh
3 & 6 1 & 5
4 & 8
2 & 7
Motor Connection Data - Windings in Parallel
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INDEX
203
Index
address requirements, 115
label & multi parameter syntax, 116
presentation, 115
#
# set address remotely, 175
reference, 115
simple syntax, 115
Command checking, 118
Command defaults, 162
Command list, 183
+
+24V fuse rating, 17
+24V supply connections, 17
+24V supply lead length restrictions, 17
Command properties, 116
Command queuing, 59, 73
Commands sent
waiting on a trigger, 71
Communication daisy chain, 42
Communication problems, 186
Communications specification, 196
Conditional code, 72
Confirming drive operation, 114
Continuous moves, 74
Cooling, 197
Cooling requirements, 5
Counts per rev, 87
A
A acceleration deceleration, 119
A to D converter, 33
AA acceleration, 119
AB, AI & AO system variables, 58
Absolute preset moves, 74
Absorber ferrite, 20
AD deceleration, 120
AI system variable, 33
ANA1 inputs, 33
Analogue input, 33
AO system variable, 33
ARM code, 121
CQ system variable, 59
ARM command, 50
D
B
D distance, 124
Baud rate changing, 31
Baud rate selection, 103
Bipolar rating, 21
DC supply amps, 11
DC supply capacitance, 11
DC supply volts, 10
Dead band, 89
BR system variable, 58
Declarations
C
position within the code, 46
Declare
command, 45
examples, 46
DECLARE, 125
Default directory, 96
Device addressing, 48
DF bit order, 67
C continue, 123
Cabinet installation, 9
Cable lengths for motor, 20
Cable screening, 20
CAN bus connector, 40
CAN bus terminator, 41
Capacitance of supply, 11
Chop frequency, 195
Clean earth, 9
CLEAR user code, 123
Clockwise motion, 74
Closed loop applications, 87
Closed loop operation, 87
Code
DF word, 67
Differential input, 33
Digital inputs specification, 196
Digital outputs specification, 196
Dimensions, 6
DIN rail mount, 7
Direct mode, 45
structure, 45
Command
Disconnecting device, 9
Downloading programs, 112
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204 INDEX
Drive
code example, 54
EW system variable, 61
EX system variable, 61
EXIT from loop, 127
cooling, 5
dissipation, 5
fault reporting, 68
Drive fault
byte reporting, 69
Drive faults, 67, 190
Drive inspection, 185
Drive settings / setup, 110
Drive types, 2
F
FAULT, 50
Fault label, 50
call conditions, 51
conditions of execution, 50
example, 52
non call conditions, 51
table, 51
E
E enable/disable comms, 126
Earth arrangements, 9
Easi-V
Fault output, 39
Fault status reporting, 67
Ferrite absorber
communicating with drive, 102
downloading, 112
help, 113
Curie temperature, 20
impedance, 20
installation directory, 97
menu overview, 99
prg files, 103
part number, 20
size, 20
Ferrite absorber specification, 20
Fielbus
running, 97
software file size, 95
startup, 98
status reporting, 111
uninstall, 97
expansion module, 62
Fieldbus Expansion Module, 30
File menu, 99
FOLLOW, 129
uploading, 113
Echo queuing, 60
Echo queuing mode selection, 60
Edit menu, 99
Following & limits, 85
Forcing a hardware RFS, 189
Function indicators, 2
Fuse for +24V supply, 17
EI system variable, 60
Electrostatic precautions, 9
EMC
G
GH go home, 132
GO, 131
filter spacing, 17
Go home command, 81
Go home while in the home switch, 82
GOSUB go to subroutine, 132
Goto line number box, 99
GOTO routine, 134
Installation, 17
Installation general requirements, 17
typical installation, 18
wiring recommendations, 17
Enable input, 34
Guided drive setup, 104
Encoder
input configuration, 60
output configuration, 59
Encoder compatibility, 29
Encoder setup, 88
END label, 45
Environment specification for drive, 197
EO system variable, 59
ES system variable, 61
Event
H
H change direction, 135
Help menu, 100
High speed interfaces, 40
Home
approach speed, 81
configuration, 80
direction of travel, 83
mode 0, 80
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INDEX
205
mode 1, 80
execution, 46
mode selection, 80
modes, 80
switch considerations, 79
HOME, 137
definition of terms, 79
Home switch too narrow, 81
Homing
naming, 48
number available, 46
predefined list, 46
select command, 46
specification, 48
system, 50
Labelled block properties, 117
Large motors, 22
operations, 79
Housing material, 197
Humidity, 197
Limit switch wiring, 39, 86
Limit switches, 39, 86
LIMITS, 142
Limits & following, 85
Line count, 87
I
I/O command, 37
I/O configuration limitations, 38
IC
Line fuse type, 200
Line fuse values, 200
LIST user program, 143
Loop command, 49
LOOP user code, 145
LSEL command, 46
LSEL example, 54
default setting, 38
example, 38
system variable, 37
IF command, 72
IF test, 139
Immediate commands, 117
Immediate or buffered commands, 117
Immediate properties, 117
IN system variable, 62
Incremental preset moves, 74
Indexer specification, 196
INn system variable, 62
Input
LVD requirements, 9
M
Maintenance, 185
Mode
absolute, 149
bidirectional, 149
continuous, 149
circuit, 36
configuration, 36
incremental, 149
position, 149
Input events, 54
Input individual configuration, 36
Inputs & outputs, 2
Mode command, 74
Motion
profiles, 75
Installation, 9
Motor
Installation safety requirements, 9
Installation setup program, 96
Installation time for S/W, 96
Interrogation commands, 71
IP flag, 62
cable lengths, 19
connections, 19, 22
default settings, 22, 26
inductance values, 21
largest size, 22
IP system variable, 61
IS input status, 140
IT system variable, 61
minimum inductance values, 21
phase contactors, 20
safety earth connection, 22, 26
selection, 21
system variables, 22, 26
wire size, 19
K
KILL, 141
Motor cable part numbers, 20
Motor direction note, 75
Motor inspection, 185
L
Label
definition, 46
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206 INDEX
Motor mounting precautions, 8
MOTOR settings, 151
Motors
PM system variable, 63
Pollution degree, 197
Port configuration, 102
Position flags, 61
4 lead, 21
6 lead, 21
8 lead, 21
voltage rating, 21, 26
Move
Position maintenance, 88
Position Maintenance
correction velocity, 90
output, 89
types, 74
settle time, 90
Moves
Position time (IT), 61
POSMAIN position maintenance, 155
Post quadrature resolution, 87
Power input cable size, 199
Power wiring precautions, 199
PR system variable, 63
Preset moves, 74
absolute preset, 74
continuous, 74
incremental preset, 74
preset, 74
MS system variable, 62
MV system variable, 61
Product
N
description, 1
features, 2
NOREG, 50
NOREG label, 77
Not saved by SV, 118
variants, 2
PROFILE of a move, 157
Program
O
examples, 47
O output, 152
Program structure, 47
Programmed mode, 45
Properties
OFF shutdown motor, 153
ON turn on motor, 154
Output
immediate, 117
labelled block, 117
save, 118
circuit, 37
configuration, 37
current rating, 37
Outputs, 37
Overload of outputs, 26
Overtemperature sensor, 30
Overtemperature switch connection, 30
Properties of commands, 116
Protection circuits, 2
Protection class, 197
PS pause, 159
PS system variable, 63
PSU connecting links, 14
PSU discrete design, 199
PT system variable, 63
P
P clip part numbers, 19
P clip sizes, 19
Q
PA system variable, 63, 80
Parallel connections, 22
Parameter checking, 118
Parameter value checking, 118
Part numbers for motor cables, 20
PC requirements, 95
PE system variable, 63
PEU, 92
Quote command, 176
R
R report system parameter, 159
RB system variable, 63
REG, 50
REG label, 77
PF system variable, 63
PI system variable, 63
PL1100
REG registration move, 160
Registration, 76
problems, 77
product description, 16
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INDEX
207
Registration example, 78
Registration output, 77
Status bits list, 181
Status report example, 111
Status reporting
immediate, 71
Status variable
byte reporting, 66
Status variable reporting, 65
Step direction inputs, 60
Step direction outputs, 59
Step up step down inputs, 60
Step up step down outputs, 59
STOP input, 169
Report commands that can be saved, 71
Reset to RS232 mode, 31
Returning the system, 194
RFS return to factory settings, 162
RJ45 connecting leads, 43
RJ45 patch cables, 43
RM system variable, 64
RS232 cables, 32
RS232 connecting leads, 32
RS232 mode forced reset, 31
RS485 connections, 40
Supply
RV system variable, 64
connections, 10
current, 11
volts, 10
S
S curve correction, 64
S stop, 163
Supply +24V, 17
SV save configuration, 170
SY motors
optimum types, 21
Syntax checking, 118
System labels, 50
System variables, 55, 115
reading, 55
Save properties, 118
Saved by SV, 118
SC system variable, 64
SCALE settings, 164
Scaling, 92
SCLA, 92
SCLD, 92
SCLV, 92
reporting status, 65
table of, 56
Search menu, 99
Serial communications configuration, 102
Serial link lead, 95
Series connections, 22
Setup file, 96
Short circuit protection, 26
SN system variable, 65
Software controlled switches, 36
Software installation, 95
Software requirements, 95
ST bit order, 65
testing, 55
writing, 55
System variables default settings, 162
System variables list, 177
T
T time delay, 171
Table of distance units for commands, 93
Temperature
ambient, 197
storage, 197
ST word, 65
Stall
Terminal menu, 100
Test code, 114
error window, 91
output, 91
Torque speed curves, 12
TR command, 72
stop on, 91
Stall detection, 91
Star point, 9
TR wait for trigger, 172
Transformer
sizing for applications, 200
Transformer selection guide, 200
Trapezoidal profile, 76
Triangular profile, 75
TT system variable, 65
START, 50
START label, 53
Starting a program, 45
STATUS, 168
Status Bit description, 66
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208 INDEX
Wire size of motor earth, 22, 26
Withstanding voltage rating, 199
U
UF byte, 69
Uploading programs, 112
USE, 173
USE command, 55
User fault
byte reporting, 70
clear conditions, 70
test example, 70
User fault descriptions, 69
User fault reporting, 69
User faults, 67
User faults list, 182
User outputs, 37
Utilities menu, 100
X
X1 connector, 28
X1 connector pin-out, 28
X1 mating connector type, 28
X2 connector, 29
X2 connector pin-out, 29
X2 connector type, 29
X3 connector, 30
X3 connector pin-out, 30
X3 connector type, 30
X4 connector, 32
X4 connector pin-out, 32
X4 connector type, 32
X5 connector, 35
V
X5 connector pin-out, 35
X5 connector type, 35
X6 & X7 connections, 41
X6 & X7 position, 40
XL-connect kit, 14
V velocity, 173
ViX
supply current, 11
supply volts, 10
ViX250/500 drive
dimensions, 6
XL-PSU
product description, 13
XL-PSU drive wiring diagram, 14
XL-PSU mounting information, 15
W
W write system variable, 174
Weight, 197
Z
Welcome box, 96
Windows menu, 100
Windows™, 95
Z reset, 174
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CUSTOMER FEEDBACK 209
Customer Feedback
If you have spotted any errors, omissions or inconsistent information within this user guide
please let us know. Either use this page (or a photocopy) to describe the error and Fax. it to
the number given below. Alternatively, you may phone or email the correction.
Name of user guide:
Part number: 1600. _ _ _ . _ _
Your name:
Found on the title page in the bottom left corner.
Contact number or email address:
Description of the error: (Please include page number)
Errors can be reported
by Fax:
By phone, via a technical Or by email:
support engineer:
+44 (0)1202 695750
+44 (0)1202 699000
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A range of
mating connectors
are supplied, depending
upon the type of fit-kit
ordered.
Communications
Function
X3
Rx+/Tx+ (RS485)*
Drive reset
RS232 GND
RS232 Rx
RS232 Tx
Rx-/Tx- (RS485)*
RS232 Tx (D loop)
1
2
3
4
5
6
7
8
9
HV STFB
X1
Do not connect
+5V output
Protective Earth
Power & Motor
X1
PE
10
X3
*requires CAN option
24-80V DC +HV
0V / GND -HV
Earth PE
24V DC
0V (GND 24v DC)
Motor Gnd
Motor phase (A+)
Motor phase (A-)
Motor phase (B+)
10
9
8
7
6
5
4
3
2
1
RS232
9-way
socket
6
9
Power & motor
10-way
connector
Control/Aux I/O
Function
X4
5
ANA1+ IN
ANA1- IN
0V
1
2
3
4
0V
1
Motor phase (B-)
6
+5V output
Fault output
Enc. A-/Step- IN
Enc. B-/Dir- IN
Enc. A- OUT
Enc. B- OUT
X4
5
6
7
8
Motor Earth
ME
1
11
15
1
5
Control/Aux I/O
15-way
socket
Feedback, Digital encoder
9
Function
X2
10
11
12
Feedback enc. Z+
Feedback enc. Z-
GND
Reserved
+5V output
1
2
3
4
5
6
7
8
9
Energise/Shutdown*
Enc.A+/Step+ IN
10
6
X2
13 Enc. B+/Dir+ IN
Enc. A+ OUT
14
Primary
encoder
15-way
socket
X5
15 Enc. B+ OUT
*Active high/low mode configurable
using system variable ES
1
10
15
GND
11
Feedback enc. A-
Feedback enc. A+
Reserved
5
15
User I/O
15-way
plug
5
11
1
10
Motor overtemp
10
User I/O
11 Feedback enc. B-
6
12
13
14
Feedback enc. B+
Function
X5
Fixing position
for motor lead
earth clip, included
in fit kit
Reserved
0V
0V
0V
Output 2
1
2
3
Reserved
15 Reserved
4
Output 1
5
Input 5 (limit+)
Input 4 (limit-)
Input 3 (Home)
Input 2 (Reg)
Input 1 (stop)
6
7
8
9
10
11 +24V
12
+24V
13 +24V
RJ45 connectors
8
X7 (OUT)
Output 3
14
15 Reserved
1
8
X6 (IN)
1
High speed
comm.
Interface
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