Baldor Electric Company Computer Drive VS1MD User Manual

VS1MD User Manual  
MN760-3  
Instruction Manual  
6/07  
WARNING: Do not remove cover for at least five (5) minutes after AC power is disconnected  
to allow capacitors to discharge. Dangerous voltages are present inside the equipment. Electrical  
shock can cause serious or fatal injury.  
!
!
WARNING: Improperoperationofcontrol maycause violentmotion ofthemotorshaft and driven  
equipment. Be certain that unexpected motor shaft movement will not cause injury to personnel  
or damage to equipment. Certain failure modes of the control can produce peak torque of several  
times the rated motor torque.  
WARNING: Motor circuit may have high voltage present whenever AC power is applied, even  
when motor is not rotating. Electrical shock can cause serious or fatal injury.  
!
!
!
!
WARNING: Dynamic brake resistors may generate enough heatto ignite combustible materials.  
Keep all combustible materials and flammable vapors away from brake resistors.  
WARNING: The motor shaft will rotate during the touting procedure. Be certain that unexpected  
motor shaft movement will not cause injury to personnel or damage to equipment.  
CAUTION: Disconnect motor leads (U, V & W) from control before you perform a “Megger” test  
on the motor. Failure to disconnect motor from the control will result in extensive damage to the  
control. The control is tested at the factory for high voltage / leakage resistance as part of  
Underwriter Laboratory requirements.  
CAUTION: Suitable for use on a circuit capable of delivering not more than the RMS  
symmetrical short circuit amperes listed here at rated voltage.  
!
Horsepower  
RMS Symmetrical Ampheres  
1-30  
5,000  
CAUTION: Do not connect AC power to the Motor terminals U, V and W. Connecting AC power  
to these terminals may result in damage to the control.  
!
!
!
CAUTION: Baldor recommends not to use "Grounded Leg Delta" transformer power leads that  
may create ground loops. Instead, we recommend using a four wire Wye.  
CAUTION: Only Baldor cables should be used to connect the keypad and control. These are  
special cables to protect the control and keypad. Damage associated with other cable types are  
not covered by the Baldor warranty.  
CAUTION: If an M-Contactor is installed, the control must be disabled for at least 200msec  
before the M-Contactor is opened. If the M-Contactor is opened while the control is supplying  
voltage and current to the motor, the control may be damaged. Before the control is enabled, the  
M-Contactor must be closed for at least 200msec.  
!
!
CAUTION: Use of power correction capacitors on the output of the drive can result in erratic  
operation of the motor, nuisance tripping, and/or permanent damage to the drive. Remove power  
correction capacitors before proceeding. Failure to observe thisprecaution could resultin damage  
to, or destruction of, the equipment.  
-3  
-4  
VS1MD AC Drive User Manual  
VS1MD ERRATA SHEET  
1.1 Change from Main Source to 2nd Source  
The function of parameters P46 and P47 has been changed. A digital input can now  
select between the main control and speed setting selected in parameters P38 and  
P40 and the secondary source set in parameters P46 and P47. A digital input  
programmed in t1 to t8 must be set to “22” Exchange between second source and  
drive.  
1.2 Parameters  
P46  
Drive Start/Stop Source 2  
Range:  
0 to 3 (see table for P38)  
0 = Keypad  
Default:  
Access:  
See Also:  
Configurable  
P38, P47, t1 to t8  
This parameter serves as an alternate control mode. It is selectable by  
a digital input (t1 to t8) = “22” Exchange between second source and  
drive.  
P47  
Frequency Setting Mode 2  
Range:  
1 to 7 (See table for P40)  
1 = Keypad  
Default:  
Access:  
See Also:  
Configurable  
P40, P47, t1 to t8  
This parameter serves as an alternate speed reference mode. It is  
selectable by a digital input (t1 to t8) = “22” Exchange between second  
source and drive.  
NOTE: Parameters P46 and P47 are only viewable when one of the t1 to t8  
terminals is set equal to “22”.  
t1-t8  
Digital Input 1 define (I/O Terminal P1) to Digital Input 8 define (I/O  
Terminal P8)  
Range:  
0 to 25  
Default:  
Access:  
See Also:  
t1 = 0, t2 = 1, t3 = 2, t4 = 3, t5 = 4, t6 = 5, t7 = 6, t8 = 7  
Configurable  
n/a  
Errata Sheet for the VS1MD Drive Installation & Operating Manual  
22 = Exchange between second source and drive: When the defined  
input is turned ON, the values set in drv2 and Frq2 are used for control  
and reference to the drive. Settings for drv2 and Frq2 can not be  
changed while the digital input is closed. During the change over from  
the Main Source to the 2nd source, the drive will stop if the control  
source differs. To restart the drive, a new run command must be given.  
Digital/Relay Output On/Off Delay  
A timer function has been implemented by adding four new software parameters.  
Two are for the On Delay and two for the Off Delay timer to the digital outputs of the  
VS1MD drive. Setting a value of greater than zero will begin the On, Off or both  
timers when the condition set in t32 and t33 for the digital outputs is met.  
In the case of the On delay timer, the actual output will not change state until the  
time value set in t50 to t51 is met. The Condition set in t32 to t33 must be active  
when the timer is reached for the output state to change.  
In the case of the Off delay timer, once the output state is on, it will delay turning off  
after the Off delay value is reached on t52 to t53. When the Off delay time is  
reached, the condition set in t32 to t33 must still be off.  
t50  
t51  
Digital Output (MO) On Delay  
Relay Output (3A - 3C) On Delay  
Range:  
0 to 3,600 Seconds  
0
Default:  
Access:  
See Also:  
Configurable  
t32 and t33  
Sets the on delay timer for the digital output.  
t52  
t53  
Digital Output (MO) Off Delay  
Relay Output (3A - 3C) Off Delay  
Range:  
0 to 3,600 Seconds  
0
Default:  
Access:  
See Also:  
Configurable  
t32 and t33  
Sets the off delay timer for the digital output.  
MO or Relay State  
Output  
On Delay Tme  
On Delay Time  
MO or Relay State  
Output  
Off Delay Time  
Off Delay Time  
Errata Sheet for the VS1MD Drive Installation & Operating Manual  
Table of Contents  
Chapter 1 Introduction  
1.1 Getting Assistance from Baldor ....................................................................... 1-1  
Chapter 2 General Information and Ratings  
2.1 Identifying the Drive by Model Number ........................................................... 2-1  
2.2 VS1-MD Drive Ratings, Model Numbers and Frame Sizes............................. 2-2  
2.3 Storage Guidelines .......................................................................................... 2-2  
Chapter 3 Installing the Drive  
3.1 General Requirements for the Installation Site................................................ 3-1  
3.2 Mounting the Drive .......................................................................................... 3-5  
3.3 Watts Loss Data .............................................................................................. 3-6  
Chapter 4 Power Wiring  
4.1 Grounding the Drive ........................................................................................ 4-1  
4.2 Connecting Peripheral Devices to the VS1-MD Drive ..................................... 4-3  
4.3 Power Terminal Wiring .................................................................................... 4  
4.4 Specifications for Power Terminal Block Wiring ............................................. 4-5  
4.5 Recommended Breakers................................................................................. 4  
4.6 Recommended AC Reactors........................................................................... 4-6  
Chapter 5  
Control Wiring  
5.1 Stop Circuit Requirements............................................................................... 5-1  
5.2 Motor Start/Stop Precautions .......................................................................... 5-2  
5.3 Terminal Wiring (Control I/O)........................................................................... 5-3  
5.4 Control Terminal Specifications....................................................................... 5  
5.5 Source/Sync for Input Control Wiring .............................................................. 5-5  
5.6 I/O Wiring Recommendations.......................................................................... 5-6  
5.7 Technical Specifications.................................................................................. 5-6  
Chapter 6 Using the Keypad  
6.1 Keypad Components....................................................................................... 6-1  
6.2 LED Descriptions............................................................................................. 6-2  
6.3 Key Descriptions.............................................................................................. 6-2  
6.4 About Parameters............................................................................................ 6-3  
6.5 How Parameters are Organized ...................................................................... 6-4  
6.6 Moving Between Parameter Groups ............................................................... 6-4  
6.7 Changing Between Parameters Within a Group.............................................. 6-6  
6.8 Modifying the Value of a Parameter ................................................................ 6-8  
6.9 Monitoring Display Parameters ..................................................................... 6-10  
6.10 Reviewing the Fault Status in the Display Group .......................................... 6-11  
6.11 Resetting the Parameters to Factory Default ................................................ 6-12  
Chapter 7 Parameter Descriptions  
7.1 Overview.......................................................................................................... 7-1  
7.2 Display Group Parameters .............................................................................. 7-2  
7.3 Basic Group Parameters ................................................................................. 7-5  
7.4 Terminal Paramters....................................................................................... 7-12  
7.5 Function Group 1 Parameters ....................................................................... 7-28  
7.6 Function Group 2 Paramters ......................................................................... 7-40  
Contents  
I
Chapter 8 Customizing for Your Application  
8.1 Frequency Mode ..............................................................................................8-1  
8.2 UP-Down..........................................................................................................8  
8.3 3-Wire ..............................................................................................................8  
8.4 PID Control.....................................................................................................8  
8.5 Auto-tuning.....................................................................................................8-  
8.6 Sensorless Vector Control .............................................................................8  
8.7 Speed Search ...............................................................................................8  
8.8 Self-Diagnostic Function ................................................................................8-17  
8.9 Parameter Read/Write ...................................................................................8  
8.10 Parameter Initialization / Lock........................................................................8-19  
8.11 Multi-function Output Terminal (MO) and Relay (3AC) ..................................8  
8.12 Accel/Decel setting and V/F Control ..............................................................8-27  
8.13 Control Block Diagram ...................................................................................8-28  
8.14 Frequency and Drive Mode Setting................................................................8-29  
Chapter 9 Troubleshooting  
9.1 Verifying that DC Bus Capacitors are Discharged Before  
Servicing the Drive..........................................................................................9-1  
9.2 Determining Drive Status Using the STP/FLT LED..........................................9-2  
9.3 Monitoring Drive Status Using the Display Parameters ...................................9-2  
9.4 Reviewing Fault Status of the Drive.................................................................9-3  
9.5 Fault Codes......................................................................................................9-3  
9.6 Fault Correction................................................................................................9-6  
9.7 Overload Protection .........................................................................................9-8  
Appendix A Technical Specifications........................................................................................ A-1  
Appendix B Options & Kits  
B.1 Remote Option................................................................................................ B-1  
B.2 Conduit Kit....................................................................................................... B-4  
B.3 Breaking Resistor............................................................................................ B-8  
Appendix C RS485 Protocol  
C.1 Introduction ..................................................................................................... C-1  
C.2 Specifications.................................................................................................. C-2  
C.3 Installation....................................................................................................... C-3  
C.4 Operation ........................................................................................................ C-3  
C.5 Communication Protocol (MODMUS-RTU)..................................................... C-4  
C.6 Communication Protocol (LS BUS)................................................................. C-4  
C.7 Troubleshooting .............................................................................................. C-7  
II  
VS1MD User Manual  
CHAPTER 1  
Introduction  
This manual is intended for qualified electrical personnel familiar with installing,  
programming, and maintaining AC Drives.  
This manual contains information on:  
Installing and wiring the VS1MD drive  
Programming the drive  
Troubleshooting the drive  
1.1 Getting Assistance from Baldor  
For technical assistance, call 1-864-284-5444. Before calling, please review the  
troubleshooting section of this manual and check the Baldor Drives website at  
www.reliance.com/vsdrives for additional information. When you call technical  
support, you will be asked for the drive model number or catalog number and this  
instruction manual number.  
Introduction  
1-1  
1-2  
VS1MD AC Drive User Manual  
CHAPTER 2  
General Information and Ratings  
The VS1MD is a variable frequency PWM drive capable of operating in open-loop,  
volts-per-hertz mode and in a sensorless vector control (SVC) mode.  
This chapter contains information about the VS1MD drive, including how to identify  
the drive.  
2.1 Identifying the Drive by Model Number  
Each drive can be identified by its model number, as shown in figure 2.1. The model  
number is on the shipping label and the drive nameplate. The model number includes  
the drive and any options.  
Drive model numbers for the VS1MD drive are provided in table 2.1.  
VS1 MD 4 10  
HP  
0P5 = 0.5HP  
1 = 1HP  
2 = 2HP  
3 = 3HP  
5 = 5HP  
7 = 7.5 HP  
10 = 10HP  
Voltage:  
2 = 230V  
4 = 460V  
Family  
MD = Microdrive  
Figure 2.1 – Identifying the Drive by Model Number  
General Information and Ratings  
2-1  
2.2 VS1MD Drive Ratings, Model Numbers and Frame  
Sizes  
Similar VS1MD drive sizes are grouped into frame sizes to simplify re-ordering and  
dimensioning. Refer to figures 3.2 through 3.5 for the dimensions of each frame size.  
Table 2.1 provides VS1MD drive ratings, model numbers and frame sizes.  
Table 2.1 – Drive Ratings, Model Numbers and Frame Sizes  
Drive Ratings  
kW HP  
Model Number  
Frame  
Size  
Input Voltage  
Output  
Current  
0.4  
0.5  
1.0  
2.0  
3.0  
5.0  
7.5  
10  
2.5  
VS1MD20P5  
VS1MD21  
VS1MD22  
VS1MD23  
VS1MD25  
VS1MD27  
VS1MD210  
VS1MD40P5  
VS1MD41  
VS1MD42  
VS1MD43  
VS1MD45  
VS1MD47  
VS1MD410  
A
0.75  
1.5  
2.2  
3.7  
5.5  
7.5  
0.4  
0.75  
1.5  
2.2  
3.7  
5.5  
7.5  
4.5  
A
B
C
C
D
D
A
A
B
C
C
D
D
200-230V  
3-Phase  
8.0  
12.0  
17.0  
24.0  
32.0  
1.25  
2.5  
0.5  
1.0  
2.0  
3.0  
5.0  
7.5  
10.0  
4.0  
380-480V  
3-Phase  
6.0  
8.0  
12.0  
16.0  
2.3 Storage Guidelines  
If you need to store the drive, follow these recommendations to prolong drive life and  
performance:  
o
o
Store the drive within an ambient temperature range of -40 to +70 C .  
Store the drive within a relative humidity range of 0% to 90%, non-condensing.  
Do not expose the drive to a corrosive atmosphere.  
2-2  
VS1MD AC Drive User Manual  
CHAPTER 3  
Installing the Drive  
This chapter provides information that must be considered when planning a VS1MD  
drive installation and provides drive mounting information and installation site  
requirements.  
ATTENTION: Only qualified electical personnel familiar with the  
construction and operation of this equipment and the hazards involved  
should install, adjust, operate, or service this equipment. Read and  
understand this manual and other applicable manuals in their entirety  
before proceeding. Failure to observe this precaution could result in  
severe bodily injury or loss of life.  
!
ATTENTION: Use of power correction capacitors on the output of  
the drive can result in erratic operation of the motor, nuisance tripping,  
and/or permanent damage to the drive. Remove power correction  
capacitors before proceeding. Failure to observe this precaution could  
result in damage to, or destruction of, the equipment.  
ATTENTION: The user is responsible for conforming with all  
applicable local, national, and international codes. Failure to observe  
this precaution could result in damage to, or destruction of, the  
equipment.  
3.1 General Requirements for the Installation Site  
It is important to properly plan before installing a VS1MD to ensure that the drive’s  
environment and operating conditions are satisfactory.  
The area behind the drive must be kept clear of all control and power wiring. Power  
connections may create electromagnetic fields that may interfere with control wiring or  
components when run in close proximity to the drive.  
Read the recommendations in the following sections before continuing with the drive  
installation.  
Installing the Drive  
3-1  
3.1.1 Operating Conditions  
Before deciding on an installation site, consider the following guidelines:  
Protect the cooling fan by avoiding dust or metallic particles.  
Do not expose the drive to a corrosive atmosphere.  
Protect the drive from moisture and direct sunlight.  
Verify that the drive location will meet the environmental conditions specified in table  
3.1.  
Table 3.1 – Ambient Temperatures and Mounting Clearances  
Ambient Temperature  
Enclosure Rating  
Minimum Mounting  
Clearances  
Minimum  
Maximum  
o
o
IP20/Open Type  
IP20/NEMA 1  
Side-by-Side  
5 cm  
-10 C  
50 C  
o
o
(14 F)  
(122 F)  
o
5 cm  
5 cm  
40 C  
o
(104 F)  
o
50 C  
o
(122 F)  
3.1.2 Minimum Mounting Clearances  
Refer to figure 3.1 for the minimum mounting clearances. Refer to section 3.1 for drive mounting  
dimensions.  
5 cm  
(1.0 in)  
Figure 3.1 – Minimum Mounting Clearances  
3-2  
VS1MD AC Drive User Manual  
3.1.3 Mounting Dimensions for the VS1MD Drive  
Overall dimensions and weights are illustrated in figures 3.2, 3.3, 3.4 and 3.5 as an aid to  
calculating the total area required by the VS1-MD drive. Dimensions are in millimeters. Weights  
are in kilograms. See table 2.1 for drive ratings by frame.  
W
W1  
A
A
H1  
H
D
B
W1  
Frame Size A  
230V/460V  
230V/460V  
HP  
0.5  
1.0  
W
70  
70  
W1  
65.5  
65.5  
H
H1  
119  
119  
D
A
B
kg  
128  
128  
130  
130  
4.5  
4.5  
4.0  
4.0  
0.76  
0.77  
Figure 3.2 – Drive Dimensions and Weights Frame A  
Installing the Drive  
3-3  
W
W1  
A
A
H1  
H
D
B
W1  
Frame Size B  
230V/460V  
HP  
2.0  
W
W1  
H
H1  
120  
D
A
B
kg  
100  
95.5 128  
130  
4.5  
4.5  
1.12  
Figure 3.3 – Drive Dimensions and Weights Frame B  
W
A
H1  
H
D
B
B
W1  
Frame Size C  
230V/460V  
230V/460V  
HP  
W
W1  
H
H1  
D
A
B
kg  
3.0 140 132  
5.0 140 132  
128  
128  
120.5  
120.5  
155  
155  
4.5  
4.5  
4.5  
4.5  
1.84  
1.89  
Figure 3.4 – Drive Dimensions and Weights Frame C  
3-4  
VS1MD AC Drive User Manual  
W
W
A
A
H1  
H
D
B
B
W1  
A
Frame Size D  
230V/460V  
230V/460V  
HP  
7.5  
W
W1  
170  
170  
H
H1  
D
B
kg  
180  
180  
220  
220  
210  
210  
170  
170  
5.0  
5.0  
4.5  
4.5  
3.66  
3.66  
10.0  
Figure 3.5 – Drive Dimensions and Weights Frame D  
3.2 Mounting the Drive  
Mount the drive upright on a flat, vertical, and level surface.  
Table 3.1 – Mounting Specifications  
Frame  
Screw Size  
M3.5 (#6-32)  
M4 (#8-32)  
M4 (#8-32)  
M4 (#8-32)  
Screw Torque  
A
B
C
D
0.67 - 0.97 N-m (6 - 8 in-lb)  
1.56 - 1.96 N-m (14 -17 in-lb)  
1.56 - 1.96 N-m (14 -17 in-lb)  
1.56 - 1.96 N-m (14 -17 in-lb)  
3.2.1 Protecting the Drive from Debris  
The drive must be protected from debris falling through the vents in the top of the drive  
during installation and operation. The drive is designed to operate in IP20/Open Type  
application mounted in a protective enclosure. A conduit kit is available as an option  
which provides a top panel to block the top vents and prevent debris from entering the  
drive.  
Installing the Drive  
3-5  
3.3 Watts Loss Data  
Table 3.2 – Watts Loss Data  
Model #  
HP  
230 Volts  
0.5  
Frame  
Watts Loss  
VS1MD20P5  
VS1MD21  
VS1MD22  
VS1MD23  
VS1MD25  
VS1MD27  
VS1MD210  
A
A
B
C
C
D
D
13  
28  
18  
56  
98  
73  
70  
1.0  
2.0  
3.0  
5.0  
7.5  
10.0  
460 Volts  
0.5  
VS1MD40P5  
VS1MD41  
VS1MD42  
VS1MD43  
VS1MD45  
VS1MD47  
VS1MD410  
A
A
B
C
C
D
D
9
1.0  
22  
32  
47  
94  
84  
113  
2.0  
3.0  
5.0  
7.5  
10.0  
3-6  
VS1MD AC Drive User Manual  
CHAPTER 4  
Power Wiring  
4.1 Grounding the Drive  
ATTENTION:The following information is merely a guide for proper  
installation. Baldor Electric Company cannot assume responsibility for  
the compliance or the noncompliance to any code, national, local or  
otherwise for the proper installationofthis driveor associatedequipment.  
A hazard of personal injury and/or equipment damage exists if codes are  
ignored during installation.  
!
ATTENTION:Use the dedicated ground terminal to ground the drive. Do  
not use the screw in the case or chassis, etc for grounding.  
The drive Safety Ground -  
must be connected to system ground. Ground impedance must  
conform to the requirements of national and local industrial safety regulations and/or electrical  
codes. The integrity of all ground connections should be periodically checked.  
R
S
T
U
V
W
SHLD  
Figure 4.1 – Typical Grounding  
Ground Fault Monitoring  
If a system ground fault monitor is to be used, only Type B devices should be used to  
avoid nuisance tripping.  
Safety Ground -  
This is the safety ground for the drive that is required by code. One of these points must be  
connected to adjacent building steel (girder, joist), a floor ground rod, or bus bar. Grounding  
points must comply with national and local industrial safety regulations and/or electrical codes.  
Motor Ground  
The motor ground must be connected to one of the ground terminals on the drive.  
Power Wiring  
4-1  
Shield Termination - SHLD  
Either of the safety ground terminals provides a grounding point for the motor cable shield. The  
motor cable shield connected to one of these terminals (drive end) should also be connected to  
the motor frame (motor end). Use a shield terminating or EMI clamp to connect the shield to the  
safety ground terminal.  
When shielded cable is used for control and signal wiring, the shield should be grounded at  
the source end only, not at the drive end.  
4.1.1 RFI Filter Grounding  
Using drives with RFI filters may result in relatively high ground leakage currents. Therefore, the  
filter must only be used in installations with grounded AC supply systems and be  
permanently installed and solidly grounded (bonded) to the building power distribution  
ground.  
Ensure that the incoming supply neutral is solidly connected (bonded) to the same building  
power distribution ground. Grounding must not rely on flexible cables and should not include  
any form of plug or socket that would permit inadvertent disconnection. Some local codes may  
require redundant ground connections. The integrity of all connections should be periodically  
checked.  
4.1.2 Grounding Procedure  
Step 1. Remove the front cover.  
Step 2. Connect the Grounding wire to the ground terminal through the opening for  
ground terminal. Enter the screw driver from vertical to the terminal and  
secure the screw tightly.  
4.1.3 Grounding Guidelines  
Table 4.1 – Grounding Guidelines  
200V Class  
400V Class  
Inverter  
capacity  
Wire  
size  
Terminal  
screw  
Grounding  
method  
Wire  
size  
Terminal  
screw  
Grounding  
method  
2
2
2
2
2
2
0.5 HP  
1.0 HP  
2.0 HP  
3.0 HP  
7.5 HP  
3.5 mm  
3.5 mm  
3.5 mm  
3.5 mm  
5.5 mm  
M3  
M3  
M3  
M3  
M4  
Type 3  
2 mm  
M3  
M3  
M3  
M3  
M4  
Special Type 3  
2
2 mm  
2
2 mm  
2
2 mm  
2
3.5 mm  
4-2  
VS1MD AC Drive User Manual  
4.2 Connecting Peripheral Devices to the VS1MD Drive  
ATTENTION:Appropriate peripheral devices must be selected and  
correct connections made to ensure proper operation. You must read and  
understand this manual thoroughly before proceeding. Failure to observe  
this precaution could result in damage to, or destruction of, the equipment.  
!
The following devices are required to operate the VS1MD drive.  
Table 4.2 – Peripheral Devices for the VS1MD Drive  
AC Source Supply  
Use a power supply within the  
permissible range for the drive’s  
input power rating.  
MCCB or Earth leakage Select circuit breakers with care. A  
circuit breaker (ELB)  
large inrush current may flow in the  
converter when power is turned on.  
Magnetic Contactor  
Install a magnetic contactor if  
necessary. When installed, do not  
use the contactor for the purpose of  
starting or stopping.  
Reactors  
Reactors must be used when the  
power factor needs to be improved  
or the drive is installed within 10 m  
of a large power supply system  
(1000kVA or more).  
Installation and wiring  
To ensure optimal operation and  
life span of the drive, install it in an  
approriate place with proper  
orientation and clearances.  
Incorrect terminal wiring can result  
in damage to the equipment.  
To motor  
Do not connect a power factor  
capacitor, surge suppresor, or radio  
noise filter to the output side of the  
drive.  
Power Wiring  
4-3  
4.3 Power Terminal Wiring  
AC Line  
Voltage  
input  
DB  
reistor  
connect  
ion  
terminal  
Motor  
connect  
ion  
terminal  
Ground  
Figure 4.2 – Power Terminal Wiring  
4-4  
VS1MD AC Drive User Manual  
4.4 Specifications for Power Terminal Block Wiring  
VS1MD20P5, VS1MD21, VS1MD40P5, VS1MD41, VS1MD22, VS1MD42  
R
S
T
B1 B2  
U
V
U
V
W
V
VS1MD23, VS1MD43, VS1MD25, VS1MD45  
B1 B2  
R
S
T
W
VS1MD27, VS1MD210, VS1MD47, VS1MD410  
B1  
R
B2  
T
U
W
S
R,S,T  
wire size  
U, V, W  
wire size  
Ground Wire  
Screw  
size  
Terminal  
torque  
Model  
Number  
mm2  
mm2  
mm2  
AWG  
AWG  
AWG  
Terminal  
Screw  
Size  
Screw  
Torque  
(Kgf.cm/lb-in)  
2
2
14  
14  
14  
14  
12  
10  
8
2
2
14  
14  
14  
14  
12  
10  
8
3.5  
3.5  
3.5  
3.5  
3.5  
5.5  
5.5  
2
12  
12  
12  
12  
12  
10  
10  
14  
14  
14  
14  
14  
12  
12  
M3.5  
M3.5  
M3.5  
M4  
10/8.7  
10/8.7  
10/8.7  
15/13  
15/13  
32/28  
32/28  
10/8.7  
10/8.7  
15/13  
15/13  
15/13  
32/28  
32/28  
VS1MD20P5  
VS1MD21  
VS1MD22  
VS1MD23  
VS1MD25  
VS1MD27  
VS1MD10  
VS1MD40P5  
VS1MD41  
VS1MD42  
VS1MD43  
VS1MD45  
VS1MD47  
VS1MD410  
2
2
2
2
3.5  
5.5  
8
3.5  
5.5  
8
M4  
M5  
M5  
2
14  
14  
14  
14  
14  
12  
12  
2
14  
14  
14  
14  
14  
14  
12  
M3.5  
M3.5  
M4  
2
2
2
2
2
2
2
2
2
M4  
2
2
2
M4  
3.5  
3.5  
2
3.5  
3.5  
M5  
3.5  
M5  
* Strip the sheaths of the wire insulation 7mm when a ring terminal is not used for  
power connection.  
Power Wiring  
4-5  
4.5 Recommended Breakers  
Table 4.3 – Circuit Breaker Ratings by Model Number  
Model  
Breaker  
Model  
Breaker  
Current[A]  
Voltage[V]  
230  
Current[A] Voltage[V]  
30  
30  
30  
30  
30  
50  
60  
VS1MD40P5  
VS1MD41  
VS1MD42  
VS1MD43  
VS1MD45  
VS1MD47  
VS1MD410  
30  
30  
30  
30  
30  
30  
30  
460  
460  
460  
460  
460  
460  
460  
VS1MD20P5  
VS1MD21  
VS1MD22  
VS1MD23  
VS1MD25  
VS1MD27  
VS1MD10  
230  
230  
230  
230  
230  
230  
4.6 Recommended Fuses and AC Reactors  
Model  
External fuse  
AC reactor  
Current[A] Voltage[V]  
10 A  
10 A  
15 A  
25 A  
40 A  
40 A  
50 A  
5 A  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
4.20mH, 3.5A  
2.13mH, 5.7A  
1.20mH, 10A  
0.88mH,14A  
0.56mH, 20A  
0.39mH, 30A  
0.28mH, 40A  
18.0mH, 1.3A  
8.63mH, 2.8A  
4.81mH, 4.8A  
3.23mH, 7.5A  
2.34mH, 10A  
1.22mH, 15A  
1.14mH, 20A  
VS1MD20P5  
VS1MD21  
VS1MD22  
VS1MD23  
VS1MD25  
VS1MD27  
VS1MD210  
VS1MD40P5  
VS1MD41  
VS1MD42  
VS1MD43  
VS1MD45  
VS1MD47  
VS1MD4100  
10 A  
10 A  
10 A  
20 A  
20 A  
30 A  
ATTENTION:Suitable For Use On A Circuit Capable Of Delivering  
Not More Then 65,000 RMS Symmetrical Amperes. 240V drives  
or 480V drives Volts Maximum  
!
ATTENTION:Use Class H or K5 UL Listed Input Fuse and UL  
ListedBreakerOnly.Seethetableaboveforthevoltage andcurrent  
rating of the fuse and the breaker.  
4-6  
VS1MD AC Drive User Manual  
4.7 Reflected Wave Protection  
When more than one motor is connected to one inverter, total wiring length should be  
less than 200m (656ft). Do not use a 3-wire cable for long distances. Due to increased  
leakage capacitance between wires, over-current protective feature may operate or  
equipment connected to the output side may malfunction. In case of long wire length,  
lower carrier frequency or contact Baldor for recommendations.  
Table 4.4 – Wire Length Recommendations  
Length Between Inverter and Motor  
Up to 50 meters  
Allowable Carrier Frequency  
Less than 15 kHz  
Up to 100 meters  
Less than 5 kHz  
More than 100 meters  
Less than 2.5 kHZ  
Power Wiring  
4-7  
4-8  
VS1MD AC Drive User Manual  
CHAPTER 5  
Control Wiring  
This chapter describes how to wire the signal and I/O terminal strip for stop, speed  
feedback, and remote control signals.  
ATTENTION:Apply the rated torque to terminal screws. Loose screws  
can cause shortcircuit and malfunction. Tightening the screws too much  
can damage the terminals and cause short circuit and malfunction.  
!
ATTENTION:Make sure the input power is off before wiring.  
ATTENTION:Afterpowersupplyisswitchedofffollowingoperation, wait  
at least 10 minutes after LED keypad display is off before you start  
working on it.  
ATTENTION:Applying input power supply to the output terminals U, V  
and W causes internal inverter damage.  
ATTENTION:Use ring terminals with insulated caps when wiring the  
input power and motor wiring.  
ATTENTION:Do not leave wire fragments inside the inverter. Wire  
fragments can cause faults, breakdowns and malfunctions.  
ATTENTION:When more than one motor is connected to one inverter,  
total wiring length should be less than 200m (656ft). Do not use a 3-wire  
cableforlong distances.Duetoincreasedleakagecapacitancebetween  
wires, over-current protective feature may operate or equipment  
connected to the output side may malfunction. In case of long wire  
length, lower carrier frequency or contact Baldor for recommendations.  
ATTENTION:Never short B1 and B2 terminals. Shorting terminals may  
cause internal inverter damage.  
ATTENTION:Do not install a power factor capacitor, surge suppressor  
or RFI filter in the output side of the inverter. Doing so may damage  
these components.  
5.1 Stop Circuit Requirements  
ATTENTION:You must provide an external, hardwired emergency  
stop circuit outside of the drive circuitry. This circuit must disable the  
system in case of improper operation. Uncontrolled machine  
operationcanresultifthisprocedureisnotfollowed. Failure to observe  
this precaution could result in bodily injury.  
!
In addition to the operational stop, you must provide a hardwired emergency stop  
external to the drive. The emergency stop circuit must contain only hardwired  
electromechanical components. Operation of the emergency stop must not depend on  
electronic logic (hardware or software) or on the communication of commands over an  
electronic network or link. Note that the hardwired emergency stop you install can be  
used at any time to stop the drive.  
Control Wiring  
5-1  
5.2 Motor Start/Stop Precautions  
ATTENTION:Acontactororotherdevice thatroutinelydisconnectsand  
reapplies the AC line to the drive to start and stop the motor can cause  
drive hardware damage. The drive is designed to use control input  
signals that will start and stop the motor. If used, the input device must  
notexceedoneoperationperminuteordrivedamagecanoccur.Failure  
to observe this precaution can result in damage to, or destruction of,  
equipment.  
!
ATTENTION:The drive start/stop control circuitry includes solid-state  
components. If hazards due to accidental contact with moving  
machinery or unintentional flow of liquid, gas or solids exist, an  
additional hardwired stop circuit may be required to remove the AC line  
to the drive. When the AC line is removed, there will be a loss of any  
inherent regenerative braking effect that might be present - the motor  
will coast to a stop. An auxiliary braking method may be required.  
Important points to remember about I/O wiring:  
Always use copper wire.  
Wire with an insulation rating of 600V or greater is recommended.  
Control and signal wires should be separated from power wires by at least 0.3  
meters (1 foot).  
Important: I/O terminals labeled “Common” are not referenced to the safety ground  
terminal and are designed to greatly reduce common mode interference.  
ATTENTION:Driving the 4-20 mA analog input from a voltage source  
could cause component damage. Verify proper configuration prior to  
applying input signals.  
!
5-2  
VS1MD AC Drive User Manual  
5.3 Terminal Wiring (Control I/O)  
T/M  
Description  
MO  
MG  
24  
Multi-function open collector output  
MO Common  
24V output  
P1  
P2  
CM  
P3  
P4  
P5  
CM  
P6  
P7  
P8  
VR  
V1  
I
MF input terminal  
(factory setting)  
FX: Forward run  
RX: Reverse run  
Input signal common  
BX: Stop  
MF input terminal  
(factory setting)  
RST: Trip reset  
JOG: Jog operation  
Input signal common  
Preset Speed Input 1  
MF input terminal  
(factory setting)  
Preset Speed Input 2  
Preset Speed Input 3  
10V power supply for potentiometer  
Freq. Setting Voltage signal input: -0~10V  
Freq. Setting Current signal input: 0~20mA  
Multi-function analog output signal: 0~10V  
G
AM  
3A  
3B  
3C  
Multi-function relay A contact output N.O.  
output terminal  
B contact output N.C.  
A/B contact common  
S+  
S-  
RS485 communication terminal  
# For connection to Remote Option or  
parameter copying  
Control Wiring  
5-3  
5.4 Control Terminal Specifications  
MO MG  
24  
P1  
P2  
CM  
P8  
P3  
P4  
V1  
S-  
I
S+  
3A  
3B  
3C  
P5  
CM  
P6  
P7  
VR  
AM  
2
T/M  
Terminal Description  
Screw Torque  
Specification  
Wire size[mm ]  
size  
[Nm]  
solid  
wire  
stranded  
1.5  
P1  
to  
P8  
Multi-function digital input  
T/M 1-8  
1.0  
M2.6  
0.4  
CM  
VR  
Common Terminal  
1.0  
1.0  
1.5  
1.5  
M2.6  
M2.6  
0.4  
0.4  
Power supply for external  
speed potentiometer  
Output Voltage: 12 V  
Max output current: 10mA  
Potentiometer: 1 - 5 kohm  
Max input voltage:  
V1  
Input terminal for Voltage  
operation  
1.0  
1.5  
M2.6  
0.4  
-12V - +12V input  
0 - 20 mA input  
I
Input terminal for Current  
operation  
1.0  
1.0  
1.5  
1.5  
M2.6  
M2.6  
0.4  
0.4  
Internal Resister: 250 ohm  
Max output voltage: 11 V  
AM  
Multi-function analog  
output terminal  
Max output current:  
100mA  
MO  
MG  
24  
Multi-function terminal for  
open collector output  
1.0  
1.0  
1.0  
1.0  
1.0  
1.0  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
M2.6  
M2.6  
M2.6  
M2.6  
M2.6  
M2.6  
0.4  
0.4  
0.4  
0.4  
0.4  
0.4  
Below DC 26V, 100mA  
Ground terminal for  
external power supply  
24V External Power  
Supply  
Max output current:  
100mA  
3A  
3B  
3C  
Multi-function relay  
output A contact N.O.  
Below AC 250V, 1A  
Multi-function relay  
output B contact N.C.  
Below DC 30V, 1A  
Common for  
Multi-function relays  
5-4  
VS1MD AC Drive User Manual  
5.5 Source/Sync for Input Control Wiring  
1. When using DC 24V inside inverter [Source]  
SW S8  
Source  
(NPN)  
S8  
SW S8  
DC 24 V  
CM  
RG  
P1  
CPU  
R
RG  
CM  
CM  
(inside inverter)  
2. When using external DC 24V [Sink ]  
SW S8  
Sink (PNP)  
S8  
DC 24 V  
DC24V  
CM  
RG  
P1  
CPU  
R
R
CM  
CM  
(inside inverter)  
Control Wiring  
5-5  
5.6 I/O Wiring Recommendations  
Table 5.1 – Recommended Control and Signal Wire1  
Minimum  
Insulation  
Rating  
Wire Type(s)  
Description  
2
Belden 8760/9460  
(or equiv.)  
300 V  
75° C  
0.8 mm (18AWG), twisted pair, 100% shield with drain.  
(167° F)  
2
Belden 8770  
(or equiv.)  
0.8 mm (18AWG), 3 conductor, shielded for remote pot  
only.  
1
If the wires are short and contained within a cabinet that has no sensitive circuits,  
the use of shielded wire may not be necessary, but is always recommended.  
Table 5.2 – I/O Terminal Block Specifications  
1
Maximum Wire Size  
Minimum Wire Size1  
Torque  
0.5 to 0.8 Nm  
(4.4 in-lb to 7 in-lb)  
2
2
1.3 mm (16 AWG)  
0.13 mm (26 AWG)  
1
Maximum / minimum that the terminal block will accept. These are not  
recommendations.  
5.6.1 Maximum Control Wire Length Recommendations  
Do not exceed control wiring length of 30 meters (100 feet). Control signal cable  
length is highly dependent on electrical environment and installation practices. To  
improve noise immunity, the I/O terminal block Common must be connected to ground  
terminal/protective earth.  
5.7 Technical Specifications  
Please see Appendix A - Technical Specifications for detailed electrical information.  
5-6  
VS1MD AC Drive User Manual  
CHAPTER 6  
Using the Keypad  
Factory-default parameter values allow the drive to be controlled from the integral  
keypad. No programming is required to start, stop, change direction, or control speed  
directly from the integral keypad.  
This chapter provides an overview of the integrated keypad and how to use it to  
program the VS1MD drive.  
6.1 Keypad Components  
Refer to table 6.1 for the LED descriptions noted by through and table 6.2 for key definitions.  
6.1.1 Display Description  
The alpha-numeric display indicates the following:  
Operational Values (such as Output Frequency)  
Parameter Numbers  
Parameter Values  
Fault Codes  
Using the Keypad  
6-1  
6.2 LED Descriptions  
Refer to figure 6.1 for the location of the LEDs described in table 6.1.  
Table 6.1 – LED Descriptions  
No.  
LED  
LED State  
Description  
PROG  
Steady Red (On) Indicates the drive is in programming mode.  
(Off)  
Indicates the drive is in operational Mode.  
RUN  
Steady Red (On) Indicates the drive is running at commanded speed.  
Flashing Red  
(Off)  
Indicates drive is accelerating or decelerating to new  
speed setting.  
Drive is not running.  
FWD  
Steady Red (On) Indicates the drive is in forward operation.  
(Off) Indicates the drive is in reverse operation.  
STP/FLT Steady Red (On) Indicates the drive is in a stopped position.  
Flashing Red  
(Off)  
Indicates the drive is faulted.  
Drive is running.  
6.3 Key Descriptions  
Refer to figure 6.1 for the location of the keys described in table 6.2.  
Table 6.2 – Key Descriptions  
Key  
Name  
Description  
Run Key  
Starts the drive.  
Active when the input mode is programmed for  
keypad control.  
Stop Key  
Stops the drive in programmed stop mode.  
Always active.  
Reset active faults.  
Ent/Prog Key Accesses programming menu and locks in  
changed values.  
To enter programming mode, the Ent/Prog key  
must be held in for 2 seconds.  
Holding the Ent/Prog key for 2 seconds or more will  
escape back to Control Reference Mode or back  
out of a parameter edit function.  
6-2  
VS1MD AC Drive User Manual  
Table 6.2 – Key Descriptions (Continued)  
Key  
Name  
Speed  
Reference  
Keys  
Description  
Operation Mode:  
Changes the commanded speed reference.  
Only active when the input mode is programmed for  
keypad control.  
The Up-Arrow increases the speed reference at a  
controlled rate.  
The Down-Arrow decreases the speed reference at  
a controlled rate.  
Holding either arrow for a set period of time will  
increase the reference ramp rate.  
Program Mode:  
Increment / Decrement parameter numbers or  
parameter values  
Direction  
Keys  
Operation Mode:  
Only active when the input mode is programmed for  
keypad control.  
Direction keys are active only when operating in  
reference command mode.  
Reverse may also be disabled by a parameter.  
Program Mode:  
Cycle through the parameter groups or shift to  
the next digit to be changed while in the  
parameter edit mode.  
6.4 About Parameters  
To program the drive for a specific application, you adjust the appropriate parameters. The  
parameters are used to define characteristics of the drive.  
There are three types of parameters:  
Numbered List Parameters (Enumerated Parameters)  
Numbered list parameters allow a selection from two or more options. Each item is  
represented by a number.  
Example: Start/Stop Source (P38)  
Bit Parameters  
Bit parameters have individual bits associated with features or conditions. If the bit is 0, the  
feature is off or the condition is false. If the bit is 1, the feature is on or the condition is true.  
Example: Terminal Status Display (d7)  
Numeric Parameters  
These parameters have a single numerical value (for example, 0.1 volts).  
Example: Motor Rated Current (P32)  
Parameters are also either configurable or tunable, or read-only.  
Configurable parameters can be adjusted or changed only while the drive is stopped.  
Using the Keypad  
6-3  
Tunable parameters can be adjusted or changed while the drive is running or stopped.  
Read-only parameters cannot be adjusted.  
6.5 How Parameters are Organized  
Parameters are organized into five Parameter Groups:  
The Display Parameter Group (dnn) contains parameters for the display of basic  
drive information.  
The Programming Parameter Group (Pnn) contains the most commonly used  
parameters for startup and operation.  
The Terminal Parameter Group (tnn) contains a linear list of input and output control  
parameters.  
Function Group 1 Parameters (Fnn) contains a linear list of advanced motor control  
parameters.  
Function Group 2 Parameters (Hnn) contains a linear list of advanced motor profile  
parameters.  
6.6 Moving Between Parameter Groups  
Use the following procedure to enter the programming mode and to move between  
groups:  
Table 6.3 – Moving Between Parameter Groups  
Procedure  
Sample Display  
Step 1. When the drive first powers up, the display will  
indicate the value of the “Power ON Display,” which  
is defined in Parameter H72. The default “Power On  
Display” is the commanded frequency.  
Step 2. Press and hold down the ENTER key for at least two  
seconds to change the drive from the operation  
mode to the programming mode.The “PROG” LED  
will illuminate indicating that the drive is in  
programming mode. The drive will display the first  
parameter of the “Display” group.  
Step 3. Press the right arrow key to change to the  
“Parameters Group”.  
Step 4. Press the right arrow key to change to the “Terminal  
Group”.  
6-4  
VS1MD AC Drive User Manual  
Table 6.3 – Moving Between Parameter Groups  
Procedure  
Sample Display  
Step 5. Press the right arrow key to change to “Function  
Group 1”.  
Step 6. Press the right arrow key to change to “Function  
Group 2”.  
Step 7. Press the right arrow key to change to “Display”  
group.  
Step 8. Press and hold down the ENTER key for at least two  
seconds to change the drive from the programming  
mode back to operation mode.The “PROG” LED will  
go out indicating that the drive is in operation mode.  
The drive will display the default “Power On Display”.  
Note that the above can be execute in reverse order by using the left arrow key  
instead of the right arrow key.  
You can only move between groups while the first parameter of the group is displayed.  
Pressing the left or right arrow while displaying any parameter other than the first  
parameter of the group returns to the first parameter of the group.  
Pressing the  
up or down  
arrow moves  
Pressing the  
you within a  
left or right  
group of  
arrow from  
parameters  
any parameter  
returns you to  
the first  
parameter of  
the group  
Function Group 1  
Function Group 2  
Terminal group  
Using the Keypad  
6-5  
The below example indicates the steps needed to move from parameter F35 to  
Function Group 2.  
Table 6.4 – Moving from F35 to Function Group 2  
Procedure  
Sample Display  
Step 1. When a parameter other than the first in a group is  
displayed, you must initially go to the first parameter  
of the group prior to going to the next group. For this  
example, parameter F35 of Function Group 1 is  
currently displayed and you want to go to Function  
Group 2 (H Parameters).  
Step 2. Press the left or right arrow and parameter F0 will be  
displayed.  
Step 3. Press the right arrow key to change to “Function  
Group 2”.  
6.7 Changing Between Parameters Within a Group  
Each group contains parameters arranged in a linear list. The list can be navigated  
using the Up and Down arrows.  
Table 6.5 – Changing Between Parameters Withing a Group  
Procedure  
Sample Display  
Step 1. From the operation mode, press and hold down the  
ENTER key for at least two seconds to change the  
drive to the programming mode. The “PROG” LED  
will illuminate indicating that the drive is in  
programming mode. The drive will display the first  
parameter of the “Display” group.  
Step 2. Press the up arrow to display the next parameter.  
Step 3. Press the up arrow again to display the next  
parameter, continue until the desired parameter is  
displayed.  
Note that using the down arrow allows navigation through the parameters in  
reverse order.  
6-6  
VS1MD AC Drive User Manual  
The first parameter of each group, with the exception of the “Display Group”, is a  
special parameter called a “Jump Code”. The parameter can be used to jump to a  
specific parameter within a group without having to scroll through the parameters  
using the up and down arrows. Once the Jump Code is programmed, the drive will  
save the setting for future use, but this can always be reprogrammed to jump to a  
different parameter.  
The following example illustrates the use of a Jump Code to jump to parameter P38.  
Table 6.6 – Using the Jump Code  
Procedure  
Sample Display  
Step 1. From the operation mode, press and hold down the  
ENTER key for at least two seconds to change the  
drive to the programming mode. The “PROG” LED  
will illuminate indicating that the drive is in  
programming mode. The drive will display the first  
parameter of the “Display” group.  
Step 2. Press the right arrow to change to the “Parameters”  
group.  
Step 3. Press the ENTER key to edit P0 (Jump Code).  
Step 4. Press the UP arrow seven times until the display  
indicates an “8”.  
Step 5. Press the left arrow one time such that the next digit  
is displayed. It will be displayed brighter than the  
previous digit.  
Step 6. Press the UP arrow three times such that the display  
indicates the parameter number.  
Step 7. Press the ENTER key to accept the value. The value  
will be saved in the Jump Code (P0) for future use  
and the desired parameter will immediately be  
displayed.  
Using the Keypad  
6-7  
The following example shows how to use a previously stored Jump Code.  
Table 6.7 – Using a Previously Stored Jump Code  
Procedure  
Sample Display  
Step 1. From the operation mode, press and hold down the  
ENTER key for at least two seconds to change the  
drive to the programming mode. The “PROG” LED  
will illuminate indicating that the drive is in  
programming mode. The drive will display the first  
parameter of the “Display” group.  
Step 2. Press the right arrow to change to the “Parameters”  
group.  
Step 3. Press the ENTER key to access the Jump Code.  
Step 4. Press the ENTER key a second time and the desired  
parameter will be displayed.  
6.8 Modifying the Value of a Parameter  
The parameters located in the Display group are read-only and can not be modified.  
All other parameters (with a few exceptions) can be modified by the user. Some  
parameters are configurable - meaning that the drive must be stopped before the  
parameter can be modified, while others are tunable - meaning that the parameter can  
be modified while the drive is stopped or running.  
6-8  
VS1MD AC Drive User Manual  
The following example shows how to modify the acceleration time located in  
parameter P41.  
Table 6.8 – Modifying Parameter Values  
Program Group  
Step 1. From the operation mode, press and hold down the  
ENTER key for at least two seconds to change the  
drive to the programming mode. The “PROG” LED  
will illuminate indicating that the drive is in  
programming mode. The drive will display the first  
parameter of the “Display” group.  
Step 2. Press the right arrow key to change to the  
“Parameters” group.  
Step 3. Use the up arrow or the jump code to display the  
acceleration time parameter P41.  
Step 4. Momentarily press the ENTER key to begin the  
parameter value edit mode. Notice that the tenths  
digit is highlighted for editing. At this point you can  
use the up arrow key to increment the value all the  
way to the new setting (16.0 in this example) or  
proceed with the following steps.  
Step 5. Press the left arrow key to select the ones digit for  
editing.  
Step 6. Press the up arrow key to increment the ones digit  
from a 5 to a 6.  
Step 7. Press the left arrow key to select the tens digit for  
editing.  
Step 8. Press the up arrow key to increment the tens digit  
from a 0 to a 1.  
Using the Keypad  
6-9  
Table 6.8 – Modifying Parameter Values  
Step 9. Press the ENTER key to accept the value and the  
display will begin to flash so that you can confirm the  
entry.  
Step 10. Press the ENTER key a second time to acknowledge  
the entry. The display will revert to showing the  
parameter number.  
6.9 Monitoring Display Parameters  
The Display group is a group that consists of read only values that can be monitored  
by the user to diagnose the operation of the drive and motor. To monitor the motor  
current, follow the below example.  
Table 6.9 – Monitoring Display Parameters  
Display Group  
Step 1. From the operation mode, press and hold down the  
ENTER key for at least 2 seconds to change the  
drive to the programming mode. The “PROG” LED  
will illuminate indicating that you are in the  
programming mode. The drive will display the first  
parameter of the “Display” group.  
Step 2. Press the up arrow key twice to change to the  
parameter d2 (Motor Current).  
Step 3. Momentarily press the ENTER key to display the  
motor current. The display will be updated in real  
time.  
Step 4. Press the ENTER key to return to the previous  
display so that you can select a new parameter to  
view.  
6-10  
VS1MD AC Drive User Manual  
6.10 Reviewing the Fault Status in the Display Group  
When a fault is active, this is annunciated on the drive by flashing the STOP/FAULT  
LED. This procedure is used to review the active fault as well as certain conditions at  
the time the fault occurred.  
Table 6.10 – Reviewing Fault Status in the Display Group  
During  
Accel  
Over-  
current  
trip  
Current  
Frequency  
STOP  
RESET  
Display Group  
Step 1. When an overcurrent condition has been detected by  
the drive, a fault will be latched and the display will  
show the condition.  
Step 2. Press the ENTER key to see the frequency at which  
the fault occurred. This example indicates that the  
drive was outputting 30.00 Hz when the fault  
occurred.  
Step 3. Press the up arrow to view the output current during  
the fault. This example indicates that the drive was  
outputting 5.0 Amps when the fault occurred.  
Step 4. Press the up arrow key again to view the operating  
status of the drive when the fault occurred. This  
example indicates that the drive was accelerating  
when the fault occurred.  
Step 5. Press the STOP/RESET button on the keypad to  
reset the fault and the STOP/FAULT LED will  
illuminate solid indicating that the fault is cleared and  
that the drive is in the stopped condition. The display  
will indicate that there is no longer a fault condition.  
Using the Keypad  
6-11  
6.11 Resetting the Parameters to Factory Default  
Follow the below procedure to reset the parameters to the factory default values:  
Table 6.11 – Resetting Parameters to Factory Default  
Function Group 2  
Step 1. Navigate to the Function Group 2 (H Group).  
Step 2. Press the ENTER key to edit the jump code. Modify  
the jump code to be equal to 93.  
Step 3. Press the ENTER key to jump to parameter H93.  
Step 4. Press ENTER to display the current value of  
parameter H93 (it will be 0 indicating that parameters  
will not be reset).  
Step 5. Press the up arrow key to change the value to a 1.  
Step 6. Press the ENTER key to reset the drive parameters  
to factory default. The display will revert back to  
displaying the parameter number.  
6-12  
VS1MD AC Drive User Manual  
CHAPTER 7  
Parameter Descriptions  
7.1 Overview  
The following information is provided for each parameter listed in table 7.1 along with  
its description:  
Parameter Number:  
Parameter Name:  
LED Display:  
Unique number assigned to each parameter.  
Unique name assigned to each parameter.  
Display shown on LED screen when parameter is  
accessed.  
Range:  
Predefined parameter limits or selections. Note that  
a negative Hz value indicates reverse rotation.  
Default:  
Access:  
Factory default setting.  
Read Only: Parameter value can not be modified  
by user.  
Configurable: Parameter can only be modified  
while drive is stopped.  
Tunable: Parameter can be modified while drive  
is running or stopped.  
Group:  
Menu group within which parameter is located.  
See also:  
Associated parameters that may provide additional  
or related information.  
The parameters are presented in numerical order within each of the fivegroups  
(Dispay, Basic Parameters, Terminal, Function Group 1, Function Group 2). Appendix  
B contains a list of parameters by name cross-referenced to parameter number.  
Parameter Descriptions  
7-1  
7.2 Display Group Parameters  
Parameters in this group are display only and can be used to monitor drive  
conditions. To change the active display for the drive, use parameter H72 - Power  
On Display.  
d0  
Frequency Command  
Range:  
0.0 to Frequency High Limit (P36) [Hz]  
Read Only  
Default:  
Displays the value of the active frequency command. The commanded  
frequency is displayed even if the drive is not running.  
d1  
Motor RPM  
Range:  
0.0 Motor RPM (based on P33 Motor  
Poles) [RPM]  
Default:  
Read Only  
Displays the output motor RPM. Motor RPM is scaled based on output  
frequency present on terminals U, V and W based on the setting in P33  
– Motor Poles.  
d2  
d3  
d4  
Output Current  
Range:  
0.0 to Motor Rated Current (P32) [Amps]  
Read Only  
Default:  
Displays the value of the output current present at terminals U, V and W.  
Output Voltage  
Range:  
0.0 to Drive Rated Voltage [volts]  
Read Only  
Default:  
Displays output voltage present at U, V, W.  
Output Power  
Range:  
0.0 to (Drive Rated Power x 2) [kW]  
Read Only  
Default:  
Displays the value of the output power present at terminals U, V and W.  
7-2  
VS1MD AC Drive User Manual  
d5  
Output Torque  
Range:  
0.0 to (Drive Rated Torque x 2) [kgf / M]  
Default:  
Read Only  
H36  
See Also:  
Displays the value of the output torque present at terminals U, V and W.  
Enter motor efficiency indicated on motor nameplate to H36 to display  
correct torque.  
d6  
d7  
DC Link Voltage  
Range:  
Based on Drive Rating [Volts DC]  
Read Only  
Default:  
Displays the present DC bus voltage level.  
Input Terminal status display  
Range:  
See Figure Below  
Read Only  
Default:  
Displays the status of the input terminals P1~P8. An example is  
shown below for when P1, P3, P4 are ON and P2, P5 are OFF.  
d8  
Output terminal status display  
Range:  
See Figure Below  
Read Only  
Default:  
Displays the status of the Digital (MO) Output and the Relay  
(3A~C) terminals. The following example is for when Digital  
Output (MO) is ON and the Relay is OFF.  
Parameter Descriptions  
7-3  
d9  
Software Version  
Range:  
1.0 to 99.9  
Read Only  
Default:  
Displays the Main Control Board software version.  
nOn  
Current Fault Display  
Range:  
See Chapter 9 - Troubleshooting for fault  
code description  
Read Only  
H1-H6  
Default:  
See Also:  
Displays the types of faults, frequency and operating status at the time of  
the last fault.  
Fault Types  
Frequency  
Current  
Accel/  
Decel  
Fault during Accel  
Information  
Fault during Decel  
Fault during constant run  
Fault code history can be viewed in parameters H1 - H5. H6 is used to  
clear the fault code history. For a complete description of fault codes,  
refer to Chapter 9 - Troubleshooting.  
7-4  
VS1MD AC Drive User Manual  
7.3 Basic Program Group Parameters  
The Basic Program Group (P) contains the parameters most commonly used in  
start-up.  
P0  
Jump Code  
Range:  
30 -47  
30  
Default:  
Access  
Tunable  
Sets the code to jump directly to a specific parameter within the group.  
P30  
Motor HP Select  
Range:  
0.5 = 0.5 HP  
1
2
3
5
= 1 HP  
= 2 HP  
= 3 HP  
= 5 HP  
7.5 = 7.5 HP  
10 = 10 HP  
Preset based on drive rating.  
Default:  
Access  
Configurable  
P32 - P34  
See also:  
Sets the motor type connected to the drive output side.  
P32  
Motor Rated Current  
Range:  
0.5 - 50 Amps  
Preset based on drive rating  
Configurable  
Default:  
Access  
See Also:  
P30, P33, P34  
Enter motor rated current on the nameplate.  
P33  
Pole Number  
Range:  
2, 4, 6, 8, 10, 12  
4
Default:  
Access  
Configurable  
P30, P32, P34  
See Also:  
Select number of motor poles  
Parameter Descriptions  
7-5  
P34  
Base Frequency  
Range:  
30 - 400 [Hz]  
60  
Default:  
Access  
Configurable  
P30, P33, F30-F38  
See Also:  
The drive outputs its rated voltage to the motor at this frequency (enter motor  
nameplate). See parameter F30 for custom V/Hz settings and V/Hz curve.  
P35  
Frequency Low Limit  
Range:  
0 - P36 [Hz]  
10.0  
Default:  
Access  
See Also:  
Configurable  
P36, F30-F38  
Sets drive minimum steady state output frequency.  
P36 Frequency High Limit  
Range:  
0 - 400 [Hz]  
60.0  
Default:  
Access  
See Also:  
Configurable  
P35  
Sets drive maximum steady state output frequency.  
P37 Frequency Command  
Range:  
Default:  
Access  
0 - 400 [Hz]  
0.00  
Tunable  
This parameter manually sets the frequency that the drive is commanded to output.  
Set the desired frequency and press ENTER/PROG to lock the value into memory. If  
the drive is running, it will immediately accelerate or decelerate to this value once  
enter is pressed. If the drive is not running, entering a value in P37 will pre-set the  
speed to accelerate to after a valid run command.  
7-6  
VS1MD AC Drive User Manual  
P38  
Stop/Start Source  
Range:  
0 = Keypad  
1 = Terminal Mode 1 (2 or 3- wire control for forward/reverse)  
2 = Terminal Mode 2 (2 wire with direction switch)  
3 = RS485 Communication  
0 {Local OIM)  
Configurable  
P40; t1 - t8  
Default:  
Access  
See Also:  
Sets the control used to start the drive.  
0
1
2
3
Keypad  
Drive control for start, stop, forward and reverse are from  
drive keypad.  
Terminal  
Operation  
Drive is controlled from run forward terminal and run  
reverse terminal.  
Drive is controlled from run terminal and directional  
terminal.  
RS485  
Drive operation controlled using RS-485 communications  
Communication (see Appendix E).  
Terminal Operation Mode 1: (2-Wire or 3-Wire Control Fwd/Rev):  
Select one digital input (t1~t8) = 0, run forward (FX).  
Select one digital input (t1~t8) = 1, run reverse (RX).  
To enable 3-Wire control select one digital input (t1~t8) = 17, 3-wire  
operation.  
Drive stops when both inputs are off or when both inputs are on.  
Drive Output  
Forward  
Digital In  
(FX)  
Reverse Digital In (RX)  
Parameter Descriptions  
7-7  
P38  
Stop/Start Source  
Terminal Operation Mode 2: (2-Wire Control with Fwd/Rev Switch):  
Select one digital input (t1~t8) = 0, run forward (FX). Operates as a Run  
Command  
Select one digital input (t1~t8) = 1, run reverse (RX). Operates as a  
Direction Switch  
To enable 3-Wire control select one digital input (t1~t8) = 17, 3-wire  
operation.  
Drive stops when both inputs are off or when both inputs are on.  
Dive Output  
Run Digital  
In (FX)  
(RX)  
Direction Digital In (RX)  
7-8  
VS1MD AC Drive User Manual  
P39  
Stop Type  
Range:  
0 = Decelerate to Stop (Ramp)  
1 = DC Brake to Stop  
2 = Coast to Stop  
0
Default:  
Access  
Configurable  
P38, P42, F8-F11  
See Also:  
Sets the active mode for all stop sources.  
0 = Decelerate to Stop. Motor decelerates to 0 Hz and stops during the set  
time.  
1 = DC Brake to stop. See parameters F8 - F11 for further details.  
2 = Coast to stop. Output frequency and voltage are shut down on a stop  
command  
Parameter Descriptions  
7-9  
P40  
Frequency Setting Method  
Range:  
1 = Digital Keypad  
2 = Analog V1 1: -10 - +10V  
3 = Analog V1 2: 0 ~ +10 V  
4 = Analog Terminal I: 0 - 20mA  
5 = Analog Terminal V1 Mode 1+ Terminal I  
6 = Analog Terminal V1 Mode 1+ Terminal I  
7 = Analog RS485  
1
Default:  
Access  
Configurable  
t32-t33, F60  
See Also:  
Sets the source of the speed reference to the drive.  
1 = Keypad:Drive output frequency is set in the operation mode by pressing  
the up/down keys. The drive immediately responds to the new setting  
without pressing the enter key.  
2 = Analog V1 Mode 1:Drive output frequency is set via a +/- 10V signal  
applied to analog input terminal V1.  
3 = Analog V1 Mode 2:Drive output frequency is set via a 4~20mA signal  
applied to analog input terminal V1.  
4 = Analog I:Drive output frequency is set via a 4~20mA signal applied to  
analog input terminal I.  
5 = Analog V1 Mode 1 + I:Drive output frequency is set via the sum of a  
+/-10V signal applied to V1 and a 4~20mA signal applied to terminal I.  
6 = Analog V1 Mode 2 + I:Drive output frequency is set via the sum of a  
0~10V signal applied to V1 and a 4~20mA signal applied to terminal I.  
7 = RS485:Drive output frequency is controlled via the RS485  
communications port.  
P41  
P42  
Accel Time  
Decel Time  
Range:  
0 - 6,000 [sec]  
P41 = 5.0, P42 = 10.0  
Tunable  
Default:  
Access  
See Also:  
P42, P36, H70, H71  
Sets the Accel/Decel time of the drive. When using the multiple accel/decel  
curves with preset speeds, this ramp serves as accel/decel time 0.  
H71 can be used to scale the accel/decel units and H70 determines if the  
time to accel/decel is relative to P35 (Frequency High Limit) or the delta  
change of running frequency to set frequency.  
7-10  
VS1MD AC Drive User Manual  
P43  
P44  
P45  
Preset Speed 1  
Preset Speed 2  
Preset Speed 3  
Range:  
0 - 400 [Hz]  
P43 = 10, P44 = 20, P45 = 30  
Tunable  
Default:  
Access  
t1-t8, t10-t13  
See Also:  
Provides an internal fixed speed command selectable by digital inputs.  
P46  
Drive Start/Stop Source 2  
Range:  
Default:  
Access  
See Also:  
Note:  
0 - 3 (see table for P38)  
1 = Terminal Mode 1  
Configurable  
P38, t1-t8  
Only viewable when one of the t1-t8 terminals is set  
for 22 and P38 = 3 (RS485 Communications).  
When RS485 communications is used as the primary mode of controlling  
the drive, this parameter serves as an alternate mode. It is selectable by a  
digital input (t1-t8) = “22”.  
P47  
Frequency Setting Mode 2  
Range:  
Default:  
Access  
See Also:  
Note:  
1-7 (see table for P40)  
1 = Keypad  
Configurable  
P40, P47, t1-t8  
Only viewable when one of the t1-t8 terminals is set  
for 22 and P40 = 7 (RS485 Communications).  
When RS485 communications is used as the primary mode of controlling  
the drive, this parameter serves as an alternate mode. It is selectable by a  
digital input (t1-t8) = “22”.  
Parameter Descriptions  
7-11  
7.4 Terminal Parameters  
t0  
Jump Code  
Range:  
0 - 81  
0
Default:  
Access  
Tunable  
Sets the code to jump directly to a specfic parameter within the group.  
t1  
t2  
t3  
t4  
t5  
t6  
t7  
t8  
Digital Input 1 define (I/O Terminal P1)  
Digital Input 2 define (I/O Terminal P2)  
Digital Input 3 define (I/O Terminal P3)  
Digital Input 4 define (I/O Terminal P4)  
Digital Input 5 define (I/O Terminal P5)  
Digital Input 6 define (I/O Terminal P6)  
Digital Input 7 define (I/O Terminal P7)  
Digital Input 8 define (I/O Terminal P8)  
Range:  
0 =Forward Run Command  
1 = Reverse Run Command  
2 = Emergency Stop Trip  
3 = Reset when a Fault occurs (RST)  
4 = Jog Operation Command (2-wire only)  
5 = Preset Speed Input - Bit 1  
6 = Preset Speed Input - Bit 2  
7 = Preset Speed Input - Bit 3  
8 = Preset Speed Ramp - Bit 1  
9 = Preset Speed Ramp - Bit 2  
10 = Preset Speed Ramp - Bit 3  
11 = DC Brake during start  
12 = 2nd Motor Select  
13 = Reserved  
14 = Reserved  
15 = Frequency increase (UP) Command  
16 = Frequency decrease (DOWN) Command  
17 = 3-wire operation  
18 = External Trip: A Contact (EtA)  
19 = External Trip: B Contact (EtB)  
20 = Self-Diagnostic Function  
21 = Exchange between PID operation and V/F operation  
22 = Exchange between option (RS485) and Drive  
23 = Analog Hold  
24 = Accel/Decel Disable  
25 = Up/Down Save Freq. Initialization  
Default:  
Access  
t1=0, t2=1, t3=2, t4=3, t5=4, t6=5, t7=6, t8=7  
Tunable  
Selects the function for the digital inputs.  
7-12  
VS1MD AC Drive User Manual  
0 = Forward Run (FX) Command: Select to define a digital input as a  
forward run command in 2-wire or 3-wire control. For both 2-wire and  
3-wire control, P38 – Drive Mode should be set to a 1 for normal operation.  
For 3-wire control an additional terminal must be defined as 17 = 3-wire  
operation.  
1 = Reverse Run (RX) Command: Select to define a digital input as a  
reverse run command in 2-wire or 3-wire control. For both 2-wire and  
3-wire control, P38 – Drive Mode should be set to a 1 for normal operation.  
For 3-wire control an additional terminal must be defined as 17 = 3-wire  
operation.  
2 = Emergency Stop (BX) Trip: Defines a digital input as a stop command.  
Drive will stop according to P39 = Stop mode select (ramp deceleration, dc  
brake or coast to rest).  
3 = Fault Reset (RST): When input is present, clears an active fault and  
resets the drive.  
4 = Jog: When input is present, the drive ramps to the value set in Jog  
Frequency (F20). Jog operation overrides all other operations except Dwell  
operation. Therefore, if Jog frequency command is entered in the middle of  
Preset Speed, Up-Down or 2-wire control; operation is executed at jog  
frequency. A valid start command is required separate from the dedicated  
jog input. The jog function is only available for 2-wire control.  
t1  
t5  
F20  
Frequency  
P5 (JOG)  
Run  
command(FX)  
5 = Preset Speed Input – Bit 1  
6 = Preset Speed Input – Bit 2  
7 = Preset Speed Input – Bit 3:  
Used to select Preset Speed 1 ~ 7 combinations, see preset speed  
frequencies P43~P45 and t10~t13.  
8 = Preset Speed Ramp – Bit 1  
9 = Preset Speed Ramp – Bit 2  
10 = Preset Speed Ramp – Bit 3:  
Used to define accel/decel ramp combinations for preset speeds, see  
(t14~t27).  
Parameter Descriptions  
7-13  
11 = DC brake during start: DC voltage will be applied to the motor  
windings at a level set by DC Brake Start Voltage (F12) for as long as the  
digital input is closed. See also F12 and F13 – Starting DC brake  
parameters.  
Voltage  
F12  
P3  
Run  
command  
nd  
12 = 2 motor select: When input is present, the drive configures itself for  
nd  
a second set of motor settings defined in 2 motor operation parameters  
(H81 to H90).  
13 = Reserved: Reserved  
14 = Reserved: Reserved  
15 = Frequency increase (UP): Increases the frequency reference to the  
drive after a run command. Frequency is saved to parameter F64 on a stop  
command if F63 = 1 ‘save up/down frequency’.  
16 = Frequency decrease (DOWN): decreases the frequency reference to  
the drive after a run command. Frequency is saved to parameter F64 on a  
stop command if F63 = 1 ‘save up/down frequency’.  
17 = 3-wire operation: Select to define a digital input for 3-wire control.  
Inputs defined as forward (FX) and reverse (RX) are momentary inputs and  
opening the input defined as 3-wire operation will stop the drive. For both  
2-wire and 3-wire control, P38 – Drive Mode should be set to a 1 for normal  
operation.  
P1 FX :  
P2 RX :  
t1 = 0  
t2 = 1  
P8 3-Wire : t8 = 17  
CM  
Frequency  
t
FX  
RX  
P8 (3-Wire)  
7-14  
VS1MD AC Drive User Manual  
18 = External trip – A (N.O.): Normally open contact input. When a digital  
input is set to “Ext trip-A” is ON (Closed), the drive displays the fault and  
turns off its output power.  
19 = External trip – B (N.C.): Normally closed contact input. When a digital  
input is set to “Ext trip-B” is OFF (Open), the drive displays the fault and  
turns off its output power.  
P1 FX :  
t1 = 0  
P7 N.O. : t2 = 18  
P8 N.C. : t8 = 19  
CM  
Frequency  
P4(A contact)  
P5(B contact)  
Run  
command  
20 = Self-Diagnostic function: Defines a digital input to initiate the  
self-diagnostic function capability of the drive unit. Parameter H60 =  
Self-Diagnostic function is used to define the test to conduct; IGBT fault and  
ground fault, Output phase short/open circuit/ground fault or ground fault  
(IGBT fault/output phase short/open circuit). See Chapter 8 – Customizing  
Your Application for advanced drive function description.  
21 = Change from PID to V/Hz Operation: Selects a digital input to bypass  
the PID Feedback controller and selects the default V/Hz control settings.  
See Chapter 8 – Customizing your application for advanced drive function.  
22 = Change from Option (RS485) to Inverter: When the defined input is  
turned ON, setting values in drv2 and Frq2 are used for control and  
reference to the drive. This function is only available when the P38 = Drive  
mode is programmed for 3 = RS485. Settings for drv2 and Frq2 can not be  
changed while the digital input is closed.  
Parameter Descriptions  
7-15  
23 = Analog Hold: Locks the analog speed reference at the last value  
when the input was closed. Available when P40 = Frequency setting  
method is set in the range of 2 ~ 7.  
24 = Accel/Decel Disable: Disables the acceleration or deceleration ramp  
while the digital input is closed, holding the reference at its last value.  
25 = Up/Down Frequency Save Initialization: When the digital input is  
active, the last Up/Down frequency is saved. Useable when digital inputs  
are configured as 15 = Frequency Increase (UP) and 16 = Frequency  
Decrease (DOWN).  
t9  
Filtering Time Constant for Multi-function input terminal  
Range:  
1 - 15  
4
Default:  
Access  
See Also:  
Tunable  
t1-t8  
The higher the value is set, the slower the responsiveness of the digital  
input becomes.  
7-16  
VS1MD AC Drive User Manual  
t10  
t11  
t12  
t13  
Preset Speed 4  
Preset Speed 5  
Preset Speed 6  
Preset Speed 7  
Range:  
0-400 [Hz]  
Default:  
t10 =30, t11=25, t12=20, t13=15  
Tunable  
Access  
See Also:  
t1-t8, P43-P45  
Provides a fixed frequency command value when Digital Input 1 ~ 8 is set  
for a Preset Speed (Option 5, 6 and 7). Closing a digital input programmed  
as a preset speed will cause the drive to operate at the defined speed.  
Preset speeds 1~3 are set in the basic parameter group (P43~P45) while  
preset speeds 4~7 are set in the terminal group (t30~t33).  
Preset Speed Input  
Parameter  
Preset Speed  
Bit 3  
Bit 2  
Bit 1  
Freq  
Command  
1
P40  
P43  
-
-
-
-
-
2
P44  
P45  
t30  
-
-
-
-
-
3
4
5
6
7
-
t31  
t32  
t33  
-
Parameter Descriptions  
7-17  
t14  
t15  
t16  
t17  
t18  
t19  
t20  
t21  
t22  
t23  
t24  
t25  
t26  
t27  
Preset Speed Accel Time 1  
Preset Speed Decel Time 1  
Preset SpeedAccel Time 2  
Preset Speed Decel Time 2  
Preset Speed Accel Time 3  
Preset Speed Decel Time 3  
Preset Speed Accel Time 4  
Preset Speed Decel Time 4  
Preset Speed Accel Time 5  
Preset Speed Decel Time 5  
Preset Speed Accel Time 6  
Preset Speed Decel Time 6  
Preset Speed Accel Time 7  
Preset Speed Decel Time 7  
Range:  
0 - 6000 [Sec]  
Default:  
t14, t15 = 3.0; t16, t17 = 4.0; t18, t19 = 5.0; t20, t21 = 6.0;  
t22, t23 = 7.0, t24, t25 = 8.0, t26, t27 = 9.0  
Access  
Tunable  
See Also:  
t1-t8, t10-t13, P43-P45  
Sets multiple acceleration and deceleration ramps based on a digital input  
closure.  
Preset Speed  
Accel/  
Decel  
Time  
Ramp  
No.  
Bit 3 Bit 2 Bit 1  
P41  
P42  
t14  
t15  
t16  
t17  
t18  
t19  
t20  
t21  
t22  
t23  
t24  
t25  
t26  
t27  
0
1
2
3
4
5
6
7
-
-
-
-
-
-
-
-
-
-
-
-
7-18  
VS1MD AC Drive User Manual  
Accel  
time 3  
Decel  
time 4  
Decel  
time 5  
Accel  
time 2  
Decel  
time 6  
Accel  
time 1  
Accel  
Time 0  
Decel  
time 7  
Frequency  
P3  
P4  
P5  
FX  
t28  
Analog Output Select  
Range:  
0 - 3  
0
Default:  
Access  
See Also:  
Tunable  
t29  
Selects the value to send to the analog output terminals.  
Setting:  
10V Output Proportional To:  
0 = Output Frequency  
1 = Output Current  
2 = Output Voltage  
3 = DC Link Voltage  
P36 – Frequency High Limit  
150% of Inverter rated current  
282Vac or 564Vac (200V or 400V Drive Rating)  
400Vdc or 800Vdc (200V or 400V Drive Rating)  
t29  
Analog Output Level Adjustment  
Range:  
10 - 200%  
100  
Default:  
Access  
See Also:  
Tunable  
t28  
Adjusts the scaling of the analog output based on a 10V signal.  
Parameter Descriptions  
7-19  
t30  
t31  
Frequency detection level  
Frequency detection bandwidth  
Range:  
0-400 [Hz]  
t30 = 30, t31 = 10  
Tunable  
Default:  
Access  
See also:  
t32-t33  
Used when t32 or t33 are set to 0-4, can not be set higher than P36  
(Frequency High Limit). See Chapter 8 - Customizing Your Application for  
more information.  
t32  
t33  
Digital Output (MO)  
Relay Output ( 3A - 3C)  
Range:  
0 = FDT-1  
1 = FDT-2  
2 = FDT-3  
3 = FDT-4  
4 = FDT-5  
5 = Overload (OLt)  
6 = Inverter Overload (LoIT)  
7 = Motor Stall STALL  
8 = Over voltage trip (OV)  
9 = Low voltage trip (LV)  
10 = Inverter overheat (OH)  
11 = Command Loss  
12 = During run  
13 = During stop  
14 = During constant run  
15 = During speed searching  
16 = Wait time for run signal input  
17 = Fault Output  
18 = Cooling Fan Trip Alarm  
Default:  
Access  
t32=12, t33=17  
Tunable  
See Also:  
t34, F54-F55, F59-F60  
Sets the on/off point for the Digital and Relay outputs. See Chapter 8 –  
Customizing Your Application for details on this parameter.  
t34  
Fault Relay Output  
Range:  
0-7  
Default:  
Access  
See Also:  
2
Tunable  
t33  
Outputs a fault code when t33 – Relay Output is set to 17: Fault Output.  
See Chapter 8 – Customizing Your Application for more information on this  
parameter.  
7-20  
VS1MD AC Drive User Manual  
t35  
Criteria for Analog Input Signal Loss  
Range:  
0 = Disabled  
1 = Activated below half of set value  
2 = Activated below set value  
Default:  
Access  
0
Tunable  
See Also:  
t32-t33, t36, t41, t46, t62-t63  
Selects the drive mode when frequency reference set by the Analog (V1, I)  
input terminal or communication option is lost.  
t35  
[Criteria for analog input  
signal loss]  
Disabled (Does not check the  
analog input signal loss)  
0
When half the value set in t36,  
t41, t46 is entered  
When less than the value set in  
t36, t41, t46 is entered  
1
2
Example 1) The inverter determines the freq reference is lost when P40 –  
Freq set method is set to 3 (Analog V1 input), t16 to 1 and analog input  
signal is less than half the value set in t36.  
Example 2)The inverter determines the freq reference is lost when P40 –  
Freq set method is set to 6 (V1+I), t16 to 2 and V1 input signal is either  
below the value set in t36 or I input value is less than the t46 value.  
Example diagram when t35 is set to 2, I62 to 2, I63 to 5.0 sec and t32 to 11:  
t36  
Analog Input 0 to -10V (NV) Min voltage  
Range:  
0 to -10V  
0
Default:  
Access  
See Also:  
Tunable  
P40, t37  
Sets the minimum voltage of the NV (-10 to 0V) input.  
Parameter Descriptions  
7-21  
t37  
Frequency corresponding to t36  
Range:  
0 - 400 [Hz]  
Default:  
Access  
See Also:  
0
Tunable  
t37  
Sets the inverter output minimum frequency at minimum voltage of the NV  
input.  
t38  
Analog Input 0 to -10V (NV) Max voltage  
Range:  
0 - 10V  
10  
Default:  
Access  
See Also:  
Tunable  
P40, t39  
Sets the maximum voltage of the NV input.  
t39  
Frequency corresponding to t38  
Range:  
0 - 400 [Hz]  
60  
Default:  
Access  
See Also:  
Tunable  
t38  
Sets the inverter output maximum frequency at maximum voltage of the NV  
input.  
t40  
Analog Input 0 - 10V (V1) Filter time constant  
Range:  
0 - 9999  
10  
Default:  
Access  
See Also:  
Tunable  
P40, t41-t43  
Adjusts the responsiveness of the Analog (V1) input (0~+10V) to filter noise.  
t41  
Analog Input 0 - 10V (V1) Min voltage  
Range:  
0 - 10V  
0
Default:  
Access  
See Also:  
Tunable  
t40, t42  
Sets the minimum voltage of the Analog Input (V1) input.  
7-22  
VS1MD AC Drive User Manual  
t42  
Frequency corresponding to t41  
Range:  
0 - 400 [Hz]  
Default:  
Access  
See Also:  
0
Tunable  
t41  
Sets the inverter output minimum frequency at minimum voltage of the V1  
input.  
t43  
Analog Input 0-10V (V1) Max voltage  
Range:  
0 - 10V  
10  
Default:  
Access  
See Also:  
Tunable  
t44  
Sets the maximum voltage of the V1 input.  
t44  
Frequency corresponding to t43  
Range:  
0 - 400 [Hz]  
60  
Default:  
Access  
See Also:  
Tunable  
t43  
Sets the inverter output maximum frequency at maximum voltage of the V1  
input.  
t45  
Analog Input 0-20mA (I) Filter time constant  
Range:  
0 - 9999  
10  
Default:  
Access  
See Also:  
Tunable  
P40, t46-t49  
Adjusts the responsiveness of the Analog (I) input (0-20mA) to filter noise.  
t46  
Analog Input 0-20mA (I) Min Current  
Range:  
0-20mA  
4
Default:  
Access  
See Also:  
Tunable  
t45, t47  
Sets the minimum current of the Analog 0-20mA (I) Input.  
Parameter Descriptions  
7-23  
t47  
Frequency corresponding to t46  
Range:  
0 - 400 [Hz]  
Default:  
Access  
See Also:  
0
Tunable  
t46  
Sets the inverter output minimum frequency at minimum current of the I  
input.  
t48  
Analog Input 0-20mA (I) Max Current  
Range:  
4 - 20mA  
20  
Default:  
Access  
See Also:  
Tunable  
t47  
Sets the maximum current of the Analog 0-20mA (I) Input.  
t49  
Frequency corresponding to t47  
Range:  
0 - 400 [Hz]  
60  
Default:  
Access  
See Also:  
Tunable  
t48  
Sets the inverter output maximum frequency at maximum current of the I  
input.  
t57  
Keypad Error Output  
Range:  
Default:  
Access  
0 - 3  
0
Tunable  
Digital Output  
Relay Output  
Bit 0  
-
Bit 2  
-
0
1
2
3
-
-
Selects the Digital and/or Relay output when a keypad-inverter  
communication fails.  
When communication error occurs for a certain time,  
will be  
displayed and the error signal can be sent to the Digital (MO) or Relay  
output.  
0: Not used  
1: Signal output to MO  
2: Signal output to 3A, 3B contacts  
3: Signal output to MO, 3A, 3B  
7-24  
VS1MD AC Drive User Manual  
t59  
Communication protocol select  
Range:  
0=Modbus RTU  
1=LS BUS  
Default:  
Access  
0
Configurable  
t60-t61, t64-t81  
See Also:  
Sets the protocol for the serial communication network.  
t60  
Inverter Number  
Range:  
1-250  
Default:  
Access  
See Also:  
1
Tunable  
t59, t61, t64-t81  
Sets the drive node address for the RS485 port multi-drop network.  
t61  
Baud Rate  
Range:  
0=1200 [bps]  
1=2400 [bps]  
2=4800 [bps]  
3=9600 [bps]  
4=19200 [bps]  
Default:  
Access  
3
Tunable  
See Also:  
t59-t60, t64-t81  
Selects the Baud Rate of RS485 Communication.  
t62  
Frequency Loss Mode  
Range:  
0=Continue operation at last frequency command  
1= Coast to Stop.  
2= Decelerate to stop.  
Default:  
Access  
0
Tunable  
P40, t35, t63  
See Also:  
When the frequency reference is from the Analog Input or RS485 Port, this  
parameters sets the action to take if the speed reference is lost.  
Parameter Descriptions  
7-25  
t63  
Frequency Loss Wait Time  
Range:  
0.1-120 [sec]  
1.0  
Default:  
Access  
See Also:  
Tunable  
P40, t35, t62  
This is the time delay before the drive takes action in the event of a  
command frequency loss. If there is no frequency command input during  
the time set in this parameter, the drive starts to operate in the mode  
selected in t62.  
t64  
Communication Time Setting  
Range:  
2-100 [ms]  
5
Default:  
Access  
See Also:  
Tunable  
t59-t61, t65-t81  
Frame Communication time.  
t65  
Parity/Stop Bit Setting  
Range:  
0=Parity: None, Stop Bit: 1  
1=Parity: None, Stop Bit: 2  
2=Parity: Even, Stop Bit: 1  
3=Parity: Odd, Stop Bit: 1  
Default:  
Access  
0
Tunable  
See Also:  
t59-t61, t64, t66-t81  
When the protocol is set, the communication format can be set.  
t66  
t67  
t68  
t69  
t70  
t71  
t72  
t73  
Read address register 1  
Read address register 2  
Read address register 3  
Read address register 4  
Read address register 5  
Read address register 6  
Read address register 7  
Read address register 8  
Range:  
Default:  
Access  
0-42239  
t66=5, t67=6, t68=7, t69=8, t70=9, t71=10, t72=11, t73=12  
Tunable  
The user can register up to 8 discontinuous addresses and read them all  
with one read command.  
7-26  
VS1MD AC Drive User Manual  
t74  
t75  
t76  
t77  
t78  
t79  
t80  
t81  
Write address register 1  
Write address register 2  
Write address register 3  
Write address register 4  
Write address register 5  
Write address register 6  
Write address register 7  
Write address register 8  
Range:  
Default:  
Access  
0-42239  
t74=5, t75=6, t76=7, t77=8, t78=5, t79=6, t80=7, t81=8  
Tunable  
The user can register up to 8 discontinuous addresses and read them all  
with one read command.  
Parameter Descriptions  
7-27  
7.5 Function Group 1 Parameters  
F0  
Jump Code  
Range:  
0-64  
0
Default:  
Access  
Tunable  
Sets the code to jump directly to a specific parameter within the group.  
F1  
Forward/Reverse Run Disable  
Range:  
0 = Forward and Reverse run enable  
1 = Forward run disable  
2 = Reverse run disable  
Default:  
Access  
0
Configurable  
Enables/disables the function that allows the direction of the motor rotation  
to be changed. The forward or reverse command may come from a digital  
command, the keypad or serial command. All forward or reverse inputs will  
be ignored if the corresponding directional control is disabled in F1.  
F2  
F3  
Accel Pattern  
Decel Pattern  
Range:  
0=Linear  
1=S-Curve  
Default:  
Access  
0
Configurable  
H17, H18, t1-t8  
See Also:  
Sets the acceleration and deceleration pattern in the drive.  
Linear: General pattern for constant torque applications.  
S-Curve:This curve allows the motor to accelerate and decelerate smoothly.  
To adjust the slope of the S-Curve see parameters H17 and H18.  
7-28  
VS1MD AC Drive User Manual  
F8  
DC Brake start frequency  
Range:  
Default:  
Access  
See Also:  
Note:  
0.1-60 [Hz]  
5.00  
Configurable  
P35,P39, F8-F11  
Only viewable when P39 – Stop mode select is set to DC  
Brake.  
Establishes the DC brake start frequency, it can not be set below P35 –  
Frequency low limit. Setting this value too high may cause an over current  
trip. It can be prevented by adjusting F9 – DC Brake wait time.  
F9 F11  
F 8  
Freq.  
Voltage  
Current  
F10  
Run  
command  
F9  
DC Brake wait time  
Range:  
Default:  
Access  
See Also:  
Note:  
0-60 [sec]  
0.1  
Configurable  
P35, P39, F8-F11  
Only viewable when P39 – Stop mode select is set to DC  
Brake.  
The drive will hold for the time set in F9 after F8 – DC Brake start frequency  
is reached before it applies the voltage level set in F10 – DC Brake Voltage.  
Use DC Brake wait time when the load inertia is large to prevent nuisance  
trips or damage to the motor.  
F10  
DC Brake Voltage  
Range:  
Default:  
Access  
See Also:  
Note:  
0-200 [%]  
50  
Configurable  
P32,P35, P39, F8-F11  
Only viewable when P39 – Stop mode select is set to DC  
Brake.  
Sets the DC Brake Voltage as a percent of P32 – Motor Rated Current.  
Parameter Descriptions  
7-29  
F11  
DC Brake Time  
Range:  
0-60 [sec]  
1.0  
Default:  
Access  
Configurable  
P35, P39, F8-F11  
See Also:  
Note:  
Only viewable when P39 – Stop mode select is set to DC  
Brake.  
Sets the time for F10 – DC Brake Voltage to be applied to the motor after F9  
– DC Brake wait time. Setting F10 or F11 to zero will disable the DC Brake  
function. In case of DC Brake at high load inertia and frequency, change  
the DC brake controller gain according to H37 set value.  
F12  
DC Brake start voltage  
Range:  
0-200 [%]  
50  
Default:  
Access  
See Also:  
Configurable  
F12, t1-t8  
This parameter sets the amount of DC voltage before a motor starts to run.  
It is set as percentage of P33 – Motor rated current.  
F13  
DC Brake start time  
Range:  
0-60 [sec]  
0
Default:  
Access  
See Also:  
Configurable  
F12, t1-t8  
DC voltage is applied to the motor for DC Brake start time before motor  
accelerates.  
Freq.  
F13  
t
Voltage  
Run  
F12  
command  
Setting F12 or F13 to 0 will disable the Starting DC brake. After F13 – DC  
Brake start time, the frequency is increased. If a digital input (t1~t8) is set  
for 11 – DC brake during start, the voltage is not released until the input is  
opened. The drive will accelerate with dc voltage applied until the input is  
open.  
7-30  
VS1MD AC Drive User Manual  
F14  
Time for magnetizing a motor  
Range:  
0-60 [sec]  
Default:  
Access  
See Also:  
0.1  
Configurable  
P30, P32, H32, H34, H40, H42, H44  
This parameter accelerates the motor after pre-exciting the motor for the set  
time. The amount of the pre-exciting current is set in H34 – Motor no load  
current.  
F20  
Jog Frequency  
Range:  
0-400 [Hz]  
10.00  
Default:  
Access  
See Also:  
Tunable  
P36, t1-t8  
This parameter sets the Jog Frequency, it cannot be set above P36 –  
Frequency High Limit. Jog is only available in 2-wire control mode.  
F27  
Torque Boost select  
Range:  
0=Manual Torque Boost  
1=Auto Torque Boost  
Default:  
Access  
0
Configurable  
See Also:  
F28-F29, H34, H41-42  
If F27 = 0, set manual torque boost values in F28 and F29.  
Voltage  
100%  
No torque boost  
F28 - FX  
torque boost  
Time  
F29 - RX  
torque boost  
FX  
RX  
If F27 = 1 (Auto toque boost), the inverter automatically calculates torque  
boost values using motor parameters and outputs the corresponding  
voltage. Before enabling Auto torque boost, H34 – No load current and H42  
– Stator resistance must be set properly.  
Parameter Descriptions  
7-31  
F28  
F29  
Torque boost in forward direction  
Torque boost in reverse direction  
Range:  
0-15 [%]  
2
Default:  
Access  
See Also:  
Configurable  
F27-F29  
This parameter sets the amount of torque boost applied to a motor during  
forward or reverse run. It is set as a percent of maximum output voltage.  
F30  
V/F Pattern  
Range:  
0=Linear  
1=Square  
2=User V/F  
Default:  
Access  
0
Configurable  
See Also:  
P34, P35, F31-F38, H40  
Selects a pattern for the drive.  
0 = Linear volts per hertz ratio from P35 – Frequency low limit to P34 –  
Base frequency.  
Base freq.  
Start freq.  
Freq.  
Inverter rated  
voltage  
Voltage  
Run  
command  
1 = Squared volts per hertz ratio. Applications are fans, pumps or variable  
torque.  
Voltage  
100%  
Freq.  
Base freq.  
7-32  
VS1MD AC Drive User Manual  
2 = User V/F is a custom volts per hertz pattern established using  
parameters F31~F38.  
Voltage  
100%  
F38  
F36  
Linear  
V/F  
F34  
F32  
Freq.  
Start  
freq.  
Base  
freq.  
F31  
F33 F35  
F37  
F31  
F33  
F35  
F37  
User V/F frequency 1  
User V/F frequency 2  
User V/F frequency 3  
User V/F frequency 4  
Range:  
0 - 400 [Hz]  
Default:  
Access  
See Also:  
F31=15, F33=30, F35=45, F37=60  
Configurable  
P34, P35, F31-F38, H40  
When F30 = 2, selects the frequency for each point in a custom volts per  
hertz pattern.  
F32  
F34  
F36  
F38  
User V/F voltage 1  
User V/F voltage 2  
User V/F voltage 3  
User V/F voltage 4  
Range:  
0-100 [%]  
Default:  
Access  
See Also:  
F32=25,F34=5-, F36=75, F38=100  
Configurable  
P34, P35, F31-F38, H40  
When F30 = 2, selects the voltage for each point in a custom volts per hertz  
pattern.  
Parameter Descriptions  
7-33  
F39  
Output voltage adjustment  
Range:  
Default:  
Access  
40-110 [%]  
100  
Configurable  
This parameter adjusts the amount of output voltage, set as a percentage of  
input voltage. Use when the motor voltage is less than the input voltage.  
Voltage  
100% setting  
100%  
70% setting  
70%  
Freq.  
Base freq.  
F40  
Energy Savings Level  
Range:  
Default:  
Access  
0-30 [%]  
0
Tunable  
This parameter adjusts decreases the output voltage according to load  
status. It is set as a percent of the maximum output voltage. When used on  
pump and fan applications, it can dramatically reduce energy consumption  
by decreasing the output voltage with light loads.  
F50  
Electronic thermal select  
Range:  
0 - 1  
Default:  
Access  
0
Tunable  
F51-F53  
Read Only:  
Setting this parameter to a 1 enables the electronic thermal overload. It  
activates when the motor is overheated if current is greater than the value  
set in F51 (time-inverse), and the drive output is turned off for the preset  
time.  
Only viewable when F50 = 1 (Electronic Thermal Overload).  
7-34  
VS1MD AC Drive User Manual  
F51  
Electronic thermal level for 1 minute  
Range:  
50-200 [%]  
150  
Default:  
Access  
See Also:  
Tunable  
F50, F52-F53  
This parameter sets the maximum current capable of flowing to the motor  
continuously for 1 minute. The set value is a percentage of P32 – Motor  
Rated Current. It can not be set lower than F52 – Electronic thermal level  
for continuous.  
F52  
Electronic thermal level for continuous  
Range:  
50-15 [%]  
10  
Default:  
Access  
See Also:  
Tunable  
F50, F51, F53  
This parameter sets the amount of current to keep the motor running  
continuously. It cannot be set higher than F51 – Electronic thermal level for  
1 minute.  
Motor cooling method  
F53  
Range:  
0 = Standard Motor  
1 = Variable Speed Motor  
Default:  
Access  
00  
Tunable  
For a Standard Motor, cooling effects decrease when a motor is run at low  
speed. A Variable Speed motor is a special motor that uses a separately  
powered cooling fan to maximize cooling effect even at low speed.  
Current for  
continuous [ %]  
100  
F53 = 1  
95  
F53 = 2  
65  
Freq [ Hz]  
20  
60  
Parameter Descriptions  
7-35  
F54  
Overload Warning Level  
Range:  
30-150 [%]  
150  
Default:  
Access  
See Also:  
Tunable  
P32, t32, t33, F55  
Sets the amount of current to issue an alarm signal at a relay or digital  
output terminal (see parameters t32 and t33). The value is set as a  
percentage of P32 – Motor Rated Current.  
Select an output terminal for this function between MO (Digital Output) and  
3A~C (Relay Output). If selecting MO as the output terminal, set t32 = 5  
(Overload: OL).  
F55  
Overload warning time  
Range:  
0-30 [sec]  
10  
Default:  
Access  
See also:  
tunable  
P32, t32,t33, F54  
This parameter issues an alarm signal when the current greater than F54 –  
Overload warning level flows to the motor for F55 – Overload warning time.  
F56  
Overload trip enable  
Range:  
0 - 1  
Default:  
Access  
See Also:  
1
Tunable  
F57, F58  
When set to a 1 = enabled, this parameter turns off the inverter output when  
the motor is overloaded. Overload level and time are set in F57 and F58  
respectively.  
F57  
Overload trip level  
Range:  
30-200 [%]  
180  
Default:  
Access  
See Also:  
Tunable  
P32, F56, F58  
This parameter sets the amount of overload current before the drive trips.  
The value is a percentage of P32 – Motor rated current.  
7-36  
VS1MD AC Drive User Manual  
Overload trip time  
F58  
Range:  
0-60 [sec]  
Default:  
Access  
See Also:  
60  
Tunable  
F56, F57  
The inverter output is turned off if the current level set in F57 is exceeded  
for the time set in F58 – Overload trip time.  
F59  
Stall Prevention select  
Range:  
0 - 7  
Default:  
Access  
See Also:  
0
Configurable  
t32, t33, F60  
During Decel  
During Constant Run  
During Accel  
Bit 2  
Bit 1  
Bit 0  
0
1
2
3
4
5
6
7
-
-
-
-
-
-
-
-
-
-
-
-
During:  
Function Description:  
Acceleration  
Motor starts deceleration when current exceeds the value  
set in F60.  
Constant run  
Deceleration  
t32 and t33:  
Motor decelerates when current exceeds the value set in  
F6.  
Motor deceleration is stopped when inverter DC link  
voltage rises above a certain voltage level.  
The drive outputs signals through either the digital (MO) or  
relay output (3A~C) terminals when set = 7 Motor Stall.  
Motor stall status can be monitored in the above codes  
even if F59 is not active.  
Example:  
F59 = 3; stall prevention active during acceleration and  
constant run. When stall prevention is executed during  
acceleration or deceleration, accel/decel times may take  
longer than the user-setting time to prevent a stall  
condition. When stall prevention is activated during  
constant run, t1, t2 executed in accordance with the value  
set in P41 – Accel Time and P42 – Decel Time.  
Parameter Descriptions  
7-37  
F60  
Stall prevention level  
Range:  
30-200 [%]  
Default:  
Access  
See Also:  
150  
Configurable  
P32, F59  
This parameter sets the amount of current to activate stall prevention during  
acceleration, constant run or deceleration. The value set is a percentage of  
P32 – Motor Rated Current.  
F63  
Save Up/down frequency  
Range:  
0 -1  
Default:  
Access  
See Also:  
0
Configurable  
t1-t8,F64  
This parameter decides whether to save the specified frequency during  
up/down operation. When 1 is selected, the up/down frequency is saved in  
F64.  
7-38  
VS1MD AC Drive User Manual  
F64  
Saved up/down frequency  
Range:  
Default:  
Access  
See also:  
Notes:  
n/a  
0.00  
Read Only  
t1-t8, F63  
F64 viewable when F63 = 1 (Save up/down frequency)  
Stores the up/down frequency if F63 = 1 before the drive stops or  
decelerates.  
F65  
Start Frequency  
Range:  
Default:  
Access  
0.10 to 10.00 [Hz]  
0.5  
Configurable  
The drive starts to output its voltage at this frequency. It is the low frequency  
limit.  
Parameter Descriptions  
7-39  
7.6 Function Group 2 Parameters  
H0  
Jump Code  
Range:  
0 - 95  
0
Default:  
Access  
Tunable  
Sets the code to jump directly to a specific parameter within the group.  
H1  
H2  
H3  
H4  
H5  
Last Fault 1  
Last Fault 2  
Last Fault 3  
Last Fault 4  
Last Fault 5  
Range:  
n/a  
Default:  
Access  
See also:  
0
Read Only  
H6  
Stores information on the types of faults, the frequency, the current and the  
Accel/Decel condition at the time of fault. The latest fault is automatically  
stored in the H1 – Fault History 1. Up to the last five faults can be stored.  
When a fault occurs during operation, it can be monitored in the d – display  
parameters under nOn. See Chapter 9 – Troubleshooting for information on  
fault codes and actions.  
H6  
Reset Fault History  
Range:  
0 - 1  
Default:  
Access  
See also:  
0
Tunable  
H1-H5  
Clears the fault history saved in H1 to H5.  
7-40  
VS1MD AC Drive User Manual  
H7  
Dwell Frequency  
Range:  
0.1-400 [Hz]  
Default:  
Access  
See also:  
5.00  
Configurable  
P35, P36, H8  
When run frequency is issued, the motor will accelerate after the Dwell  
Frequency is applied for the Dwell Time – H8. Dwell frequency can be set  
within Frequency High and Low Limits (P35 and P36).  
Dwell frequency is used to output torque in an intended direction. It is  
useful in hoisting applications to apply torque before releasing a mechanical  
brake. Rated slip frequency is calculated by the formula shown below:  
rpm × P  
fs = fr −  
120  
f
Where, s = Rated slip frequency  
f
rpm  
r = Rated frequency  
= = Motor nameplate RPM  
P
= Number of Motor poles  
Example:  
Rated frequency = 60Hz; Rated RPM = 1740rpm;  
Number of motor poles= 4  
1740 × 4  
120  
fs = 60 −  
= 2Hz  
Dwell freq.  
Start freq.  
Frequency  
Dwell time  
Run  
command  
H8  
Dwell Time  
Range:  
0-10 [sec]  
0.0  
Default:  
Access  
Configurable  
H7  
See also:  
Sets the time for dwell operation.  
Parameter Descriptions  
7-41  
H10  
Skip Frequency Enable  
Range:  
0 - 1  
Default:  
Access  
See also:  
0
Configurable  
H11-H16  
Set this parameter = 1 to enable the skip frequency settings configured in  
H11 thru H16. When it is desirable to avoid resonance attributable to the  
natural frequency of a mechanical system, these parameters allow resonant  
frequencies to be skipped. Three different areas of Skip frequency  
High/Low limit can be set. During acceleration or deceleration however, the  
run frequency within the set area is valid.  
H11  
H12  
H13  
H14  
H15  
H16  
Skip Frequency Low Limit 1  
Skip Frequency High Limit 1  
Skip Frequency Low Limit 2  
Skip Frequency High Limit 2  
Skip Frequency Low Limit 3  
Skip Frequency High Limit 3  
Range:  
Default:  
Access  
See Also:  
Note:  
0.1-400 [Hz]  
H11=10, H12=15, H13=20, H14=25, H15=30, H16=35  
Configurable  
H10  
Parameters H11-H16 are only viewable when H10 – Skip  
Frequency = 1 (Enabled).  
Run frequency cannot be set within the range of H11 thru H16. The  
frequency values of the low numbered parameters cannot be set above  
those of the high numbered ones. Settable within the range of Frequency  
High and Low Limits (P35 and P36).Sets the lower limit of frequency range  
1 to skip.  
Freq.  
H16  
H15  
H14  
H13  
H12  
H11  
V1(Voltage input)  
10V  
0
I (Current input)  
20mA  
Run  
command  
Freq. Up setting  
Freq. Down  
setting  
7-42  
VS1MD AC Drive User Manual  
Case 1:If frequency set value (Analog setting via voltage, current, RS485 or  
keypad) is within the range of skip frequency, it maintains the low limit value.  
If the set value is outside the range, it increases the frequency up to the set  
value.  
Case 2:In the case of a decreasing frequency setting, if the frequency set  
value (Analog setting via voltage, current, RS485 or keypad) is within the  
range of skip frequency, it maintains skip frequency high value. If the  
setting is outside the range, it decreases frequency to the set value.  
H17  
H18  
S-Curve Accel/Decel Start Side  
S-Curve Accel/Decel End Side  
Range:  
0.1-100 [%]  
40  
Default:  
Access  
See also:  
Configurable  
P41, P42, F2, F3  
Set the speed reference value to form a curve at the start and end cycle of  
the acceleration and deceleration curves. If it is set higher, linear zone gets  
smaller.  
H17 sets the starting and H18 the ending ratio between S-curve and Linear  
in ½ of Accel/Decel Ref. Frequency. For smooth Accel/Decel starting,  
increase H17 or H18 to extend the S-curve ratio.  
Note that setting Frequency Ref. for Accel/Decel (H70) is set to Max Freq  
and target freq is set below Max freq. the shape of the S-curve may be  
distorted.  
H17  
H18  
= P41+ P41×  
+ P41×  
2
2
Accel time for S-curve setting  
Decel time for S-curve setting:  
H17  
H18  
= P42 + P42×  
+ P42×  
2
2
Parameter Descriptions  
7-43  
H19  
Phase Loss Protection  
Range:  
Default:  
Access  
0 - 3n  
0
Tunable  
Setting H19 to a value other than 0 enables Phase Loss Protection.  
Output Phase Loss: Inverter output is shut off in the event of more than one  
phase loss among U, V and W.  
Input Phase Loss: Inverter output is blocked at the event of more than one  
phase loss among R, S and T. If there is no input phase loss, output is shut  
off when it is time to replace the DC link capacitor.  
Note: Set P32 – Motor Rated Current correctly. If the actual motor rated  
current and the value of P32 are different, output phase loss protection  
function may not activate correctly.  
0 = Not Used  
1 = Output phase loss protection  
2 = Input phase loss protection  
3 = Input/output phase loss protection  
H20  
Power On Start  
Range:  
0 - 1  
0
Default:  
Access  
See also:  
Tunable  
P38  
Setting H20 = 1 enables power on start. This parameter is activated when  
P38 – Drive Mode is set to 1 or 2 (Run/Stop via Control Terminal). Motor  
will accelerate after AC power is applied and a Forward Run (FX) or  
Reverse Run (RX) terminal is ON.  
Input voltage  
Frequency  
Run  
command  
When H20 is 0  
When H20 is 1  
This parameter is inactive if P38 – Drive Mode is set to Keypad or RS485.  
ATTENTION:Particular attention must be directed to this function due to  
potential hazard as motor starts to run suddenly upon applying AC input  
power.  
7-44  
VS1MD AC Drive User Manual  
H21  
Auto Restart  
Range:  
0 - 1  
Default:  
0
Access  
Tunable  
See also:  
P38, H26, H27  
Setting H21 = 1 enables auto restart. This parameter is activated when P38  
– Drive Mode is set to 1 or 2 (Run/Stop via Control Terminal). Motor will  
accelerate after a fault condition is reset. A Forward Run (FX) or Reverse  
Run (RX) terminal must be ON to Auto Restart.  
Frequency  
Reset  
Run  
command  
When H21 is 0  
When H21 is 1  
ATTENTION:Particular attention must be directed to this function due to  
potential hazard as motor starts to run suddenly after the fault is cleared.  
H22  
Speed Search Select  
Range:  
0 - 15  
Default:  
Access  
See also:  
0
Configurable  
t32, t33, H23-H27  
This parameter is active to prevent any possible fault when the inverter  
outputs its voltage to the running motor. See Chapter 8 – Customizing Your  
Application for details on setting this parameter.  
H23  
Spped Search Current Level  
Range:  
80 - 200 [%]  
100  
Default:  
Access  
See also:  
Tunable  
P32, H22, H24-H27  
This parameter limits the amount of current during speed search. The value  
is a percentage of P32 – Motor Rated Current. See Chapter 8 –  
Customizing Your Application for details on setting this parameter.  
Parameter Descriptions  
7-45  
H24  
H25  
Speed Search P Gain  
Speed Search I Gain  
Range:  
Default:  
Access  
0-9999  
100  
Tunable  
Settings H24 and H25 are used to set the Proportional and Integral gain  
used for Speed Search PI Controller. See Chapter 8 – Customizing Your  
Application for details on setting this parameter.  
Auto Restart Attempts  
H26  
Range:  
0-10  
Default:  
Access  
See Also:  
0
Tunable  
H21, H27  
This parameter sets the number of restart tries after a fault occurs. Auto  
restart becomes active after the time is reached in H27 – Auto Restart Time.  
Auto Restart is deactivated if the number of faults exceeds the value in H26  
– Auto Restart Attempts.  
H26 is reset back to its entered value if STOP key or a reset via the control  
terminal is activated. If no trip occurs for 30 seconds after the auto restart  
operation, H26 is reset.  
It is not possible to restart (auto restart becomes deactivated) if the drive  
faults due to a Low Voltage (Lvt), Emergency Stop (EST), Inverter Overheat  
(Oht) or a Hardware Trip (HWt) fault. This parameter sets the number of  
restart tries after a fault occurs. Auto restart becomes active after the time  
is reached in H27 – Auto Restart Time. Auto Restart is deactivated if the  
number of faults exceeds the value in H26 – Auto Restart Attempts.  
H27  
Auto Restart Time  
Range:  
0-60 [sec]  
1.0  
Default:  
Access  
See Also:  
Tunable  
H21, H27  
This parameter sets the amount of time between auto restart attempts.  
After the Auto Restart Time, the motor starts acceleration automatically.  
7-46  
VS1MD AC Drive User Manual  
H32  
Slip Frequency  
Range:  
0-10 [Hz]  
1.67  
Default:  
Access  
Configurable  
P33, H40  
See Also:  
Enter the slip frequency in accordance with the following formula and motor  
nameplate.  
r p m x P  
f s = f r -  
( )  
1 2 0  
Where:  
f
f
s = Rated Slip Frequency  
r = Rated Frequency  
rpm = Motor Nameplate rpm  
P
= Number of Motor Poles  
Example: Rated Freq: 60 Hz; Rated RPM: 1740 rpm; Poles: 4  
fs = 60 - ((1740 x 4) / 120) = 2 HZ  
H34  
No Load Motor Current  
Range:  
Default:  
Access  
0.1-20 [A]  
Based on drive rating  
Configurable  
Enter the current value detected when the motor is rotating at rated speed  
(remove any load connected to the motor shaft). For applications where it is  
difficult to measure the no load current, enter a value of 50% of the rated  
nameplate motor current in this parameter.  
H36  
Motor Efficiency  
Range:  
50-100 [%]  
Default:  
87  
Access  
Configurable  
Enter the motor efficiency from the motor nameplate.  
Parameter Descriptions  
7-47  
H37  
Load Inertia Rate  
Range:  
0=Load inertia rate is less than 10 times that of motor  
inertia  
1=Load inertia rate equal to approximately 10 times the  
motor inertia.  
2=Load inertia rate is more than 10 times that of motor  
inertia.  
Default:  
Access  
0
Configurable  
F8-F11, H40  
See also:  
Select range according to the connected inertia in relationship to the motor  
inertia.  
H39  
Carrier Frequency Select  
Range:  
Default:  
Access  
2-15 [kHz]  
2
Tunable  
This parameter affects the audible sound of the motor, noise emission form  
the inverter, inverter temperature, and leakage current. If the set value is  
higher, the inverter sound is more quiet, but the noise from the inverter and  
leakage current will be increased.  
H40  
Control Mode Select  
Range:  
0=Volts/Frequency Control  
1=Slip Compensation Control  
2=PID Feedback Control  
3=Sensorless Vector Control  
Default:  
Access  
0
Configurable  
This parameter selects the control mode for the operation of the drive. See  
the following description of control method and the corresponding  
parameters for adjustment to each.  
7-48  
VS1MD AC Drive User Manual  
Volts per Hertz: Basic Operation of the Drive, set standard motor  
parameters:  
P30 – Motor Hp  
P32 – Motor Rated Current  
P33 – Motor PolesF30 – V/F Pattern  
Slip  
Compensation: This function enables the motor to run in constant speed  
by compensating inherent slip in an induction motor. Set  
parameters:  
P30 – Motor Hp  
P32 – Motor Rated Current  
P33 – Motor Poles  
H32 – Rated Slip Freq  
H34 – Motor No Load Current  
H36 – Motor Efficiency  
H37 – Load Inertia  
PID Feedback: H50 thru H56 (see chapter 8 for advanced PID features)  
Sensorless  
Vector:  
Open Loop Speed Regulated drive control. Set  
parameters:  
P30 – Motor Hp  
P32 – Motor Rated Current  
H32 – Rated Slip Freq  
H34 – Motor No Load Current  
H41 – Auto tuning  
H42 – Stator resistance  
H44 – Leakage inductance  
F14 – Time for magnetizing  
H41  
Auto-Tuning  
Range:  
0 - 1  
Default:  
0
Access  
Configurable  
H40, H42, H44  
See also:  
If this parameter is set to a 1, it automatically measures the values to assign  
for parameters H42 – Stator Resistance and H44 – Leakage Inductance.  
H42  
Stator Resistance (Rs)  
Range:  
0-28 [Ω]  
Default:  
Access  
See also:  
n/a  
Configurable  
H40, H41, H44  
This is the value of the motor stator resistance.  
Parameter Descriptions  
7-49  
H44  
Leakage Inductance (Lσ)  
Range:  
0-300.0 [mH]  
Default:  
Access  
See also:  
Based on drive rating  
Configurable  
H40, H41, H42  
This is the leakage inductance of the stator and rotor of the motor.  
H45  
H46  
Sensorless P Gain  
Sensorless I Gain  
Range:  
Default:  
Access  
See also:  
Note:  
0-32767  
H44=1000, H45=100  
Configurable  
H40  
Set H40 = 3 (Sensorless Vector Control) to display these  
parameters.  
Proportional and Integral gain for Sensorless Vector Control.  
H50  
PID Feedback Selection  
Range:  
0=Terminal I Input (0-20 mA)  
1=Terminal V1 Input (0-10V)  
Default:  
Access  
Based on drive rating  
Configurable  
See Also:  
H40, H50-H56  
Selects the source for the PID loop feedback.  
H51  
P Gain for PID  
Range:  
0 - 999.9%  
300.0  
Default:  
Access  
See Also:  
Configurable  
H40, H50-H56  
These parameter sets the Proportional gain for the PID Controller.  
I Gain for PID  
H52  
Range:  
0.1-32.0[sec]  
1.0  
Default:  
Access  
See Also:  
Tunable  
H40, H50-H56  
These parameter sets the Integral gain for the PID Controller.  
7-50  
VS1MD AC Drive User Manual  
D Gain for PID  
H53  
Range:  
0-30.0[sec]  
0.0  
Default:  
Access  
See Also:  
Tunable  
H40, H50-H56  
These parameter sets the Differential gain for the PID Controller.  
H54  
F Gain for PID  
Range:  
0-999.9[%]  
0.0  
Default:  
Access  
See Also:  
Tunable  
H40, H50-H56  
This is the Feed forward gain for the PID controller.  
H55  
H56  
PID output frequency high limit  
PID output frequency low limit  
Range:  
0.1-400[Hz]  
60.00  
Default:  
Access  
See Also:  
Tunable  
H40, H50-H56  
These parameters set the limits for the output frequency through the PID  
control.  
H60  
Self Diagnostics Select  
Range:  
0 - 3  
Default:  
Access  
See Also:  
0
Configurable  
t1-t8  
0 = Self-diagnostic disabled  
1 = IGBT fault/ground fault  
2 = Output phase short & open/ground fault  
3 = Ground Fault  
Parameter Descriptions  
7-51  
H70  
Frequency Reference for Accel/Decel  
Range:  
0 - 1  
Default:  
Access  
See Also:  
0
Configurable  
P36, P41, P42, H71  
0 = Based on P36 – Frequency High Limit  
1 = Based on Delta Frequency  
Set the desired Accel/Decel time sin P41 and P42. If H70 = 0, the  
acceleration and deceleration time is the time that it takes to reach  
maximum frequency from 0 hertz. If you set H70 to 1 = Delta Frequency,  
Accel/Decel time is the time that it takes to reach target frequency from a  
constant run frequency (current operating frequency). To scale the time  
units for accel/decel set parameter H71.  
H70 = 0 (Max Frequency)  
Max. freq.  
60Hz  
Run Freq.  
30Hz  
Run  
command  
Accel time  
Decel time  
H70 = 1 (Delta Frequency)  
7-52  
VS1MD AC Drive User Manual  
H71  
H72  
H74  
Accel/Decel Time Scale  
Range:  
0 - 2  
Default:  
Access  
See Also:  
1
Tunable  
P36, P41, P42, H70  
This parameter is used to scale the time units for the accel/decel ramp. The  
display for the VS1MD is available up to 5-digits. Therefore, if time unit is  
set to 0.01 sec for example, maximum accel/decel time would be 600.00  
seconds.  
0 = Setting Unit: 0.01 sec  
1 = Setting Unit: 0.1 sec  
2 = Setting Unit: 1 sec  
Range: 0.01 ~ 600.00  
0.1 ~ 6000.0  
1 ~ 60000  
Power-On Display  
Range:  
0 - 9  
Default:  
Access  
See Also:  
0
Configurable  
d0-d9, H74  
This parameter selects the parameter to display on the keypad when power  
is applied.  
0 = Frequency Command  
2 = Output Current  
4 = Output Power  
6 = DC Link Voltage  
8 = Digital Output Status  
1 = Motor RPM  
3 = Output Voltage  
5 = Output Torque  
7 = Digital Input Status  
9 = Software Version  
Gain for Motor RPM Display  
Range:  
1-100 [%]  
100  
Default:  
Access  
See Also:  
Configurable  
d1, H72  
This parameter is used to change the motor rpm display to a scaled custom  
factor. When H40 = 0 (V/F Control) or 1 (PID Control), the inverter output  
frequency is displayed in RPM suing the formula below. Motor slip is not  
considered.  
120 × f  
P32  
H 74  
RPM =  
×
100  
Parameter Descriptions  
7-53  
H75  
DB Resistor Select  
Range:  
0 - 1  
Default:  
1
Access  
Configurable  
H76  
See Also:  
0 = Unlimited  
1 = Limited by setting in H76  
ATTENTION:Take caution when DB resistor is used over its Watt rating.  
Firemay resultfromresistoroverheat. Whenresistor having heatdetection  
sensor is used, sensor output can be used as external trip signal in digital  
input.  
H76  
DB Resistor Operating Rate  
Range:  
0-30[%]  
10  
Default:  
Access  
See Also:  
Configurable  
H75  
Sets the percent of DB resistor operating rate to be activated during one  
sequence of operation. Continuous usage rate is a maximum of 15  
seconds.  
Example 1)  
T _ dec  
H76 =  
×100[%]  
T _ acc + T _ steady + T _ dec + T _ stop  
T_acc: Acceleration time to reach a setting freq.  
T_steady: Time for constant speed operation at setting freq.  
T_dec: Time to decelerate to lower freq. than that in constant speed  
or time to stop from freq. in constant speed.  
T_stop: waiting time at a stop before operation is resumed.  
7-54  
VS1MD AC Drive User Manual  
Example 2)  
T _ dec  
T _ dec + T _ steady1+ T _ acc + T _ steady2  
H76 =  
×100[%]  
H77  
Cooling Fan Control  
Range:  
Default:  
Access  
0 - 1  
0
Configurable  
This parameter determines if the cooling fan for the drive will always  
operate or only run when the temperature of the inverter exceeds the  
protective temperature limit.  
0 = Always ON, cooling fan operates when power is applied to drive. Fan  
turns off when inverter voltage becomes low due to power off.  
1 = Fan operates when temp above limit; fan begins to operate when power  
is ON and a operating command is ON. Fan turns off when operating  
command is turned off. Fan will continue to operate if the heat sink  
temperature exceeds a certain limit regardless of operating command. Use  
this setting for applications requiring frequent starts and stops.  
H78  
Operating method when cooling fan fails  
Range:  
0 - 1  
Default:  
Access  
See Also:  
0
Configurable  
t32, t33  
This parameter determines if what the drive will do if the cooling fan fails.  
0 = Continuous operation when cooling fan malfunctions  
Setting t32 or t33 = 18 (Cooling Fan Fault Alarm) will send an alarm signal  
to the output.  
ATTENTION:If operation is continued after a fan trip occurs, an overheat  
trip may happen and protective functions may be activated. It may also  
reduce the life of main board components due to a rise in inverter internal  
temperatures.  
Parameter Descriptions  
7-55  
1 = Operation stops when cooling fan malfunctions  
When cooling fan fault occurs,  
message is displayed on the  
LED and operation is stopped. If t32 and/or t33 is set to 17 (Fault Output),  
fault message is displayed.  
H81 -  
H90  
Second Motor Parameters  
Range:  
See below  
See below  
Configurable  
t1-t8  
Default:  
Access  
See Also:  
These parameters activate when a selected terminal is ON and one of the  
t1 thru t8 terminals is set for 12 (2nd Motor Select).  
Param. Description  
Range  
Factory Default  
Adj. run  
H81  
H82  
H83  
H84  
H85  
H86  
H87  
H88  
H89  
H90  
Accel Time  
Decel Time  
Base Freq  
V/F Pattern  
FX Torque Boost  
RX Torque Boost  
Stall Level  
1 Min Overload Level  
Continuous Overload Level  
Motor Rated Current  
0 ~ 60000 Sec  
0 ~ 60000 Sec  
30 ~ 400 Hz  
0 ~ 2  
0 ~ 15 %  
0 ~ 15 %  
30 ~ 150 %  
50 ~ 200 %  
50 ~ 150 %  
0.1 ~ 50 Amps  
1.0  
5.0  
60.0  
0
5
5
150  
150  
100  
26.3  
-
-
-
-
-
-
Use these settings when an inverter operates two motors connected to two  
different types of loads. 2nd motor operation does not drive two motors at  
the same time. When first selected motor operation is stopped, select a  
terminal for the second motor and define H81 thru H90 to run the second  
motor.  
M 1  
VS1MD  
M 2  
P8  
Sets the V/F pattern for the second motor.  
7-56  
VS1MD AC Drive User Manual  
H91  
H92  
Parameter Read  
Parameter Write  
Range:  
Default:  
Access  
0-1  
0
Configurable  
H91 Copies the parameters from the drive and saves them into a remote  
keypad.  
H92 Copies the saved file in a remote keypad and writes it to the drive.  
H93  
Parameter Initialize  
Range:  
Default:  
Access  
0 - 5  
0
Configurable  
This parameter is used to initialize the drive settings back to their factory  
default values.  
0 = No Action  
1 = All parameters set to factory defaults  
To reset individual groups only and not all parameters select one of the  
following:  
2 = P Group Parameter Reset  
4 = H Group Parameter Reset  
3 = F Group Parameter Reset  
5 = t Group Parameter Reset  
Press the ENTER key after setting H93. H93 will be displayed again after  
initialization.  
H94  
Password Register  
Range:  
0-FFFF  
0
Default:  
Access  
See Also:  
Tunable  
H95  
This parameter is used to assign a password for the drive.  
H95  
Parameter Lock  
Range:  
0 -FFFF  
0
Default:  
Access  
See Also:  
Tunable  
H94  
This parameter is able to lock or unlock parameters by typing the password  
registered in H94.  
Parameter Descriptions  
7-57  
7-58  
VS1MD AC Drive User Manual  
CHAPTER 8  
Customizing for Your Application  
8.1 Frequency Mode  
8.1.1 Keypad Frequency Setting 1  
Group Code Parameter Name  
Setting Range  
Initial  
0.00  
Unit  
Hz  
Drive  
P37  
P40  
[Frequency Command]  
-
0 to  
400  
group  
[Frequency Setting  
Method]  
1
1 to 7  
1
Step 1. Set P40 [Frequency mode] to “1”.  
Step 2. Set the desired frequency in P37 and press the Prog/Ent ( ) key to enter  
the value into memory.  
Step 3. The value can not be set above P36 [Frequency Hiigh Limit].  
Note: When remote keypad is connected, keypad keys on the body are deactivated.  
Customizing for Your Application  
8-1  
8.1.2 Frequency Setting via –10 to +10[V] Input  
Group  
Code  
P37  
P40  
t36  
Parameter Name  
Setting Range  
Initial  
0.00  
1
Unit  
Hz  
Drive  
group  
[Frequency Command]  
[Frequency Mode]  
-
0 to400  
1 to 7  
2
-
t40 TO  
t44  
[NV Input Minimum Voltage]  
0 to -10  
0 to 400  
0.0  
V
t37  
[Frequency Corresponding to  
t36]  
-
0.00  
Hz  
t38  
t39  
[NV Input Max Voltage]  
-
-
0 to 10  
10.00  
60.00  
V
[Frequency Corresponding to  
t38]  
0 to 400  
Hz  
t40 to  
t44  
[V1 Input]  
Step 1. Set P40 [Frequency Setting Method] to “2”.  
Step 2. The set frequency can be monitored in D-0[Frequency Command].  
Apply –10V to +10V signal between V1 and CM terminal.  
Output frequency corresponding to –10V to +10V input voltage to V1 terminal  
8-2  
VS1-MD AC Drive User Manual  
I1 (Filter time constant for NV input): Effective for eliminating noise in the frequency  
setting circuit. Increase the filter time constant if steady operation cannot be  
performed due to noise. A higher setting results in slower response (t gets longer).  
V1 Input  
t
Set Freq.  
t36 to t39: Setting input range and corresponding frequency to -10V to 0V V1 input  
voltage  
Ex) when minimum (-) input voltage is -2V with corresponding frequency 10Hz and  
Max voltage is –8V with run freq. 50Hz.  
t36  
t38  
t40 to t44: Setting input range and corresponding frequency to 0 to +10V V1 input  
voltage  
Ex) when minimum (+) input voltage is 2V with corresponding frequency 10Hz and  
Max voltage is 8V with run freq.  
t44  
t42  
t41  
t49  
Customizing for Your Application  
8-3  
8.1.3 Frequency Setting via 0 to 10 [V] Input or Terminal Potentiometer  
Group  
Code  
Parameter Name  
[Frequency Command]  
Setting  
Range  
Initial  
Unit  
P37  
-
0 to 400  
0.00  
Hz  
Drive  
group  
P40  
t40  
[Frequency Setting Method]  
3
1 to 7  
1
[Filter Time Constant for V1  
Input]  
10  
0 to 9999  
10  
t41  
t42  
[V1 Input Min Voltage]  
-
-
0 to 10  
0
V
I/O  
group  
[Frequency corresponding to I  
7]  
0 to 400  
0.00  
Hz  
t43  
t44  
[V1 Input Max Voltage]  
-
-
0 to 10  
10  
V
[Frequency Corresponding to  
I 9]  
0 to 400  
60.00  
Hz  
Step 1. Set P40 [Frequency Setting Method] to “3”  
Step 2. 0-10V can be directly applied from an external controller or a  
potentiometer connected on terminals VR, V1 and CM.  
Wire the terminals as shown below.  
8-4  
VS1-MD AC Drive User Manual  
8.1.4 Frequency Setting via 0 to 20 [mA] Input  
Group  
Code  
P37  
Parameter Name  
Setting  
Range  
Initial  
0.00  
Unit  
Hz  
[Frequency Command]  
-
0 to 400  
Drive  
group  
P40  
t45  
t46  
t47  
t48  
t49  
[Frequency Setting Method]  
[Filter Time Constant for I Input]  
[I Input Minimum Current]  
4
10  
-
1 to 7  
1
0 to 9999  
0 to 20  
0 to 400  
0 to 20  
0 to 400  
10  
4
mA  
Hz  
I/O  
group  
[Frequency Corresponding to I12]  
[I input Max Current]  
-
0.00  
20  
-
mA  
Hz  
[Frequency Corresponding to I14]  
-
60.00  
Step 1. Set P40 [Frequency Setting Method] to “4”.  
Step 2. Frequency is set via 0 to 20mA input between I and CM terminal.  
8.1.5 Frequency Setting via -10 to +10 V Voltage Input + 0 to 20 mA  
Input  
Group  
Code  
P37  
P40  
Parameter Name  
Setting  
Range  
Initial  
0.00  
Unit  
Hz  
[Frequency Command]  
-
0 to 400  
Drive  
group  
[Frequency Setting Method]  
5
1 to 7  
1
Step 1. Set P40 [Frequency Setting Method] to “5”.  
Step 2. Override function available using Main/Auxiliary speed adjustment  
Step 3. Related code: t36, t39, t40, t44, t45, t49  
Override function allows more precise control and a faster response by combining  
Main and Auxiliary speed input. Fast response can be achieved via Main speed and  
precise control can be accomplished by Aux. speed if the accuracy of Main/Aux speed  
is set differently.  
Follow the settings shown in the table below when Main speed is given via 0 to 20mA  
with Aux. speed via V1 terminal (–10 to 10V).  
Customizing for Your Application  
8-5  
When override function is used, select the Main/Aux. speed according to loads used.  
Group  
Code  
t36  
Parameter Name  
[NV Input Min Voltage]  
Setting  
Unit  
0
V
t37  
t38  
t39  
t41  
t42  
t43  
t44  
t46  
t47  
t48  
t49  
[Frequency Corresponding to t36]  
[NV Input Max Voltage]  
0.00  
10.00  
5.00  
0
Hz  
V
[Frequency Corresponding to t38]  
[V1 Input Min Voltage]  
Hz  
V
[Frequency Corresponding to t41]  
[V1 Input Max Voltage]  
0.00  
10  
Hz  
V
I/O group  
[Frequency Corresponding to t43]  
[I Input Minimum Current]  
5.00  
4
Hz  
mA  
Hz  
mA  
Hz  
[Frequency Corresponding to t46]  
[I Input Max Current]  
0.00  
20  
[Frequency Corresponding to t48]  
60.00  
After the above parameters are set, if 5V is applied to V1 with 12mA given to terminal  
I, output frequency would be 32.5Hz. If –5V is applied to V1 terminal with 12mA given  
to terminal I, output frequency would be 27.5Hz.  
8.1.6 Frequency Setting via 0 to 10 V + 0 to 20 mA Input  
Group  
Code  
P37  
P40  
Parameter Name  
Setting  
Range  
Initial  
0.00  
Unit  
Hz  
[Frequency Command]  
-
0 to 400  
Drive  
group  
[Frequency Mode]  
6
1 to 7  
1
Step 1. Set P40 [Frequency Setting Method] to “6”.  
Step 2. Related code: t40 to t44, t45 to t49  
Step 3. Refer to Frequency setting via -10 to +10V voltage input + 0 to 20mA  
input.  
8-6  
VS1-MD AC Drive User Manual  
8.1.7 Frequency Setting via RS 485 Communication  
Group  
Code  
P37  
P40  
Parameter Name  
Setting  
Range  
Initial  
0.00  
Unit  
Hz  
[Frequency Command]  
-
0 to400  
Drive  
group  
[Frequency Setting Method]  
7
1
1 to  
Set P40 [Frequency Setting Method] to “7”.  
Related code: t59 - t61  
Refer to Appendix D. RS485 communication.  
8.1.8 Operating Command via RS485 Communication  
Group  
Code  
P38  
Parameter Name  
[Drive Mode]  
Setting  
Range  
0 to 3  
Initial  
Unit  
Drive group  
3
-
1
0
t59  
[Communication Protocol  
Selection]  
0 to 1  
I/O group  
t60  
t61  
[Inverter Number]  
[Baud Rate]  
-
-
1 to 250  
0 to 4  
1
3
Step 1. Set P38 [Drive Mode] to “3”.  
Step 2. Set t59, t60 and t61 correctly.  
Step 3. Drive operation is performed via RS485 communication.  
8.1.9 Rotating Direction Selection via –10 to +10[V] Input of V1 Terminal  
Group  
Code  
P40  
P38  
Parameter Name  
Setting  
Range  
1 to 7  
0 to 3  
Initial  
Unit  
Drive group  
[Frequency Setting]  
2
-
1
[Drive Mode]  
1
Step 1. Set P40 to 2.  
Step 2. Inverter is operating as the table below regardless of Drive mode setting.  
FWD RUN Command  
FWD RUN  
REV RUN Command  
REV RUN  
0 to +10 [V]  
-10 to 0 [V]  
REV RUN  
FWD RUN  
Motor runs in Forward direction when input voltage to V1-CM is between 0 and 10[V]  
and FWD RUN command is active. When input voltage polarity is reversed to –10 to  
0[V] during FWD RUN, motor decelerates to stop and runs in reverse direction.  
Customizing for Your Application  
8-7  
Motor runs in Reverse direction when input voltage to V1-CM is between 0 and 10[V]  
and REV RUN command is active. When input voltage polarity is reversed to –10 to  
0[V], motor decelerates to stop and runs in forward direction.  
8.2 UP-Down  
Group  
Display  
Parameter Name  
Setting  
0
Range  
0 to 25  
Default  
0
Unit  
t1  
to  
t7  
t8  
[Multi-function Input Terminal P1 Selection]  
to  
I/O  
group  
[Multi-function Input Terminal P7 Selection]  
[Multi-function Input Terminal P8 Selection]  
15  
16  
6
7
Select terminals for Up-Down operation from P1-P8.  
If P7 and P8 are selected, set t7 and t8 to 15 [Frequency Up command] and 16 [Frequency Down  
command], respectively.  
If P6 is selected, set t6 to t8 [Up/Down Save Frequency Initialization].  
t1  
Frequency  
t6  
P7 (UP)  
t7  
P8 (DOWN)  
Run  
t8  
command(FX)  
Up/down Save function: If F63, ‘Save up/down frequency’, is set to 1, the frequency  
before the inverter was stopped or decelerated is saved in F64  
0
1
Remove ‘save up/down frequency’  
Set ‘save up/down frequency’  
F63  
F64  
Save up/down frequency select  
Save up/down frequency  
Up/down frequency saved  
The Up/down frequency can be initialized by setting the multi-function input terminal  
as ‘Up/Down Save Frequency Initialization’.  
8-8  
VS1-MD AC Drive User Manual  
If ‘Up/Down Save Frequency Initialization’ signal is input while the multi-function input  
‘Up’ or ‘Down’ function is applied, this signal is ignored.  
8.3 3-Wire  
Group  
Display  
Parameter Name  
Setting  
0
Range  
0 to 24  
Default  
0
Unit  
t1  
to  
t8  
[Multi-function Input Terminal P1 Selection]  
I/O  
group  
to  
[Multi-function Input Terminal P8 Selection]  
17  
7
Select the terminal from P1-P8 for use as 3-Wire operation.  
If P8 is selected, set I24 to “17” [3-Wire operation].  
t1  
t2  
t8  
Frequency  
t
FX  
RX  
P8 (3-Wire)  
Input signal is saved in 3-Wire operation. Therefore, inverter can be operated by  
Push-button switch.  
The bandwidth of pulse (t) should not be less than 50msec.  
Customizing for Your Application  
8-9  
8.4 PID Control  
Group  
Display  
H40  
Parameter Name  
[Control Mode Selection]  
Setting  
Range  
0 to 3  
Default  
Unit  
-
2
-
0
H50  
H51  
H52  
H53  
H54  
H55  
H56  
t1 to t8  
[PID Feedback Selection]  
[P Gain for PID Controller]  
[I Gain for PID Controller]  
[D Gain for PID Controller]  
[F Gain for PID Controller]  
[PID Output Frequency High Limit]  
[PID Output Frequency Low Limit]  
0 to 1  
0
-
-
0 to 999.9  
0.1 to 32.0  
0.0 to 30.0  
0 to 999.9  
0.1 to 400  
0.1 to 400  
0 to 25  
300.0  
1.0  
0
%
-
sec  
sec  
%
Function  
group 2  
-
0
-
60.0  
0.50  
-
Hz  
Hz  
-
-
I/O group  
[Multi-function Input Terminal  
P1-P8 Definition]  
21  
Drive group  
d1  
[Motor RPM]  
Set H40 to “2” [PID Feedback control].  
Output frequency of the inverter is controlled by PID control for use as constant control of flow, pressure or  
temperature.  
H50: Select the feedback type of PID controller.  
0
1
Terminal I input (0 to 20[mA] )  
Terminal V1 input (0 to 10[V])  
H50  
[PID Feedback Selection]  
H51: Set the percentage of output to error. If P Gain is set to 50%, 50% of the error  
value will be output. Higher value can reach the target control value faster but it may  
cause oscillation.  
H52: Set the time to output the accumulated error value. Set the time required to  
output 100% when the error value is 100%. If H52 [Integral time for PID controller (I  
gain)] is set to 1 sec and the error becomes 100%, 100% will be output in 1 sec.  
Adjusting the value may reduce the nominal error. If the value is reduced, response  
will be faster but setting too low may lead to controller oscillation.  
H53: Set the output value to the variation of the error. The error is detected by 0.01  
sec in SV-iG5A. If differential time is set to 0.01 sec and the percentage variation of  
error per 1 sec is 100%, 1% per 10msec is output.  
H54: PID Feed Forward Gain. Set the gain to add the target value to the PID controller  
output.  
H55, H56: Limits the output of the PID controller.  
I17 to I24: To go from PID to normal operation, set one of P1-P8 terminal to 21 and  
turn ON.  
d1: Calculates the feedback from H50 into Motor frequency and displays it.  
8-10  
VS1-MD AC Drive User Manual  
PID Block Diagram  
Customizing for Your Application  
8-11  
8.5 Auto-tuning  
Group  
Display  
Parameter Name  
[Auto Tuning]  
Setting  
Range  
0 to 1  
Default  
Unit  
-
H41  
H42  
H44  
1
0
H-  
Function  
group 2  
[Stator Resistance (Rs)]  
-
-
0 to 28  
-
-
W
[Leakage Inductance (Lσ)]  
0 to 300.00  
mH  
Motor parameters will be automatically measured.  
The measured motor parameters in H41 can be used in Auto Torque Boost and Sensorless Vector  
Control.  
ATTENTION:Auto tuning should only be executed after  
motor has stopped. Motor shaft must not run by the load  
during H41[Auto tuning].  
!
H41: When H41 is set to 1 and press the Enter (ò) key, Auto tuning is activated and  
“TUn” will appear on the LED keypad. When finished, “H41” will be displayed.  
H42, H44: The values of motor stator resistance and leakage inductance detected in  
H41 are displayed, respectively. When Auto tuning is skipped or H93 – [Parameter  
initialize] is done, the default value corresponding to motor type (H30) will be  
displayed.  
Press the STOP/RST key on the keypad or turn on the EST terminal to stop the Auto  
Tuning.  
If Auto tuning of H42 and H44 is interrupted, the default value will be set. If H42 and  
H44 are finished and auto-tuning of leakage inductance is interrupted, the measured  
value of H42 and H44 are used and the default of leakage inductance is set.  
See page for motor parameter default values.  
ATTENTION:Be sure accurate values are entered for stator  
resistance and leakage inductance. Otherwise, the performance  
of Sensorless vector control and Auto torque boost could be  
compromised.  
!
8-12  
VS1-MD AC Drive User Manual  
8.6 Sensorless Vector Control  
Group  
Display  
H40  
Parameter Name  
Setting  
3
Range  
0 to 3  
Default  
0
Unit  
[Control Mode Selection]  
-
P30  
H32  
P32  
H34  
H42  
H44  
F14  
[Motor Type Selection]  
[Rated Slip Frequency]  
[Motor Rated Current]  
-
-
-
-
-
-
-
0.2 to 7.5  
0 to 10  
-
kW  
Hz  
A
-
H - Function  
group 2  
0.5 to 50  
0.1 to 20  
0 to 14  
-
[Motor No Load Current]  
[Stator Resistance (Rs)]  
[Leakage Inductance (Lσ)]  
[Time for Energizing a Motor]  
-
A
-
W
0 to 300.00  
0.0 to 60.0  
-
mH  
sec  
Function  
group 1  
0.1  
If H40[Control mode Selection] is set to “3”, Sensorless vector control will become active.  
ATTENTION:Motor parameters should be measured for  
optimal performance. It is highly recommended H41 [Auto  
tuning] be done prior to operating via Sensorless vector  
control.  
!
Ensure that the following parameters are entered correctly for optimal performance in  
Sensorless vector control.  
P30: Select motor type connected to inverter output.  
H32: Enter rated slip frequency based on motor nameplate RPM and rated frequency  
(See 10-6).  
P32: Enter motor nameplate rated current.  
H34: After removing the load, set H40[Control mode Selection] to “0” [V/F control] and  
run the motor at 60Hz. Enter the current displayed in Cur-[Output current] as motor no  
load current. If it is difficult to remove the load from the motor shaft, enter a value  
equal to 40 to 50% of H33[Motor rated current] or the factory default.  
H42, H44: Enter the value of the parameter measured during H41[Auto tuning] or the  
factory default.  
F14: This parameter accelerates the motor after pre-exciting the motor for the set  
time. The amount of the pre-exciting current is set in H34[Motor No Load Current].  
Directly enter the motor nameplate value except motor rating when 0.2kW is used.  
Customizing for Your Application  
8-13  
Factory default by motor ratings  
Motor  
rating  
[kW]  
Current  
rating  
[A]  
No-load  
current  
[A]  
Rated slip  
freq  
[Hz]  
Stator  
resistance  
[]  
Leakage  
inductance  
[mH]  
Input  
voltage  
0.2  
1.1  
0.6  
2.33  
3.00  
2.33  
2.33  
2.00  
2.33  
2.33  
2.33  
2.33  
3.0  
14.0  
122.00  
61.00  
28.14  
14.75  
11.31  
5.41  
0.4  
0.75  
1.5  
2.2  
3.7  
5.5  
7.5  
0.2  
0.4  
0.75  
1.5  
2.2  
3.7  
5.5  
7.5  
1.8  
1.2  
2.1  
3.5  
4.4  
4.9  
6.6  
9.0  
0.4  
0.7  
1.3  
2.1  
2.6  
3.3  
3.9  
5.7  
6.70  
3.5  
2.46  
6.5  
1.13  
200  
8.8  
0.869  
0.500  
0.314  
0.169  
28.00  
14.0  
12.9  
19.7  
26.3  
0.7  
3.60  
2.89  
300.00  
177.86  
88.44  
44.31  
34.21  
16.23  
10.74  
8.80  
1.1  
2.0  
2.33  
2.33  
2.00  
2.33  
2.33  
2.33  
7.38  
3.7  
3.39  
400  
5.1  
2.607  
1.500  
0.940  
0.520  
6.5  
9.9  
15.2  
8-14  
VS1-MD AC Drive User Manual  
8.7  
Speed Search  
Group  
Display  
H22  
Parameter Name  
Setting  
Range  
0 to 15  
Default  
Unit  
[Speed Search Selection]  
-
0
H23  
H24  
H25  
t32  
[Current Level]  
-
80 to 200  
100  
100  
200  
12  
%
Function  
group 2  
[Speed Search P Gain]  
[Speed Search I Gain]  
-
0 to 9999  
-
[Multi-function Output  
Terminal Selection]  
15  
I/O group  
0 to 18  
t33  
[Multi-function Relay Selection] 15  
17  
This is used to prevent possible faults from occurring if the inverter outputs the voltage during operation  
after the load is removed.  
The inverter estimates the motor rpm based on output current. Therefore, detecting exact speed is  
difficult.  
The following table shows 4 types of Speed search selections.  
Speed Search  
During  
H20[Power ON  
Start]  
Speed Search  
During Instant  
Power Failure  
Restart  
Speed Search  
During  
H21[Restart After  
Fault Reset]  
Speed Search  
During  
Acceleration  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
-
0
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2
-
-
-
-
-
-
-
3
4
-
-
5
H22  
6
7
8
-
-
-
-
-
-
9
10  
11  
12  
13  
14  
15  
-
-
H23: Limits current during Speed search. Set as a percentage of H33.  
H24, H25: Speed search is activated via PI control. Adjust P gain and I gain  
corresponding to the load characteristics.  
t32, t33: Signal of active Speed search is given to external sequence via Multi-function  
output terminal (MO) and Multi-function relay output (3ABC).  
Customizing for Your Application  
8-15  
Example  
Speed search during Instant Power Failure restart  
When the input power is cut off due to instant power failure, the  
inverter outputs Low voltage trip (LV) to hold the output.  
When the power is restored, the inverter outputs the frequency  
before the low voltage trip and the voltage is increased due to PI  
control.  
t1: If current is increasing over the preset level in H23, the rise in  
voltage will stop and the frequency is decreased.  
t2: If the opposite of t1 occurs, the increase in voltage starts again  
and the decrease in frequency stops.  
When the frequency and voltage are restored back to the nominal  
level, acceleration will continue at the frequency before trip.  
Speed search operation is suitable for loads with high inertia. Stop the motor and  
restart when friction in load is high.  
VS1MD keeps normal operation when instant power failure occurs and power is  
restored in 15msec for the use of its inverter rating.  
Inverter DC link voltage can vary depending on output load quantity. Therefore, Low  
Voltage trip may occur when instant power failure is maintained over 15msec or output  
is higher than its rating.  
Instant power failure specification is applied when input voltage to Inverter is 200 to  
230V AC for 200V class, or 380 to 480V AC for 400V class.  
8-16  
VS1-MD AC Drive User Manual  
8.8  
Self-Diagnostic Function  
8.8.1 How to Use Self-Diagnostic Function  
Group  
Display  
H60  
Parameter Name  
Setting  
-
Range  
0 to 3  
Default  
0
Unit  
Function  
group 2  
Self-Diagnostic Selection  
-
t1  
Multi-function Input Terminal P1  
Selection  
-
0
-
-
to  
t8  
to  
I/O group  
0 to 25  
Multi-function Input Terminal P8  
Selection  
20  
7
Select Self-Diagnostic function in H60, Function group 2.  
Define one terminal among P1toP8 terminals for this function.  
To define P8 for this function, set t8 to “20”.  
ATTENTION:Do not touch the inverter with hands or other  
objects while performing this function because current is  
flowing to the inverter output.  
!
Perform Self-diagnostic function after input/output wiring of the inverter is finished.  
This function allows the user to safely check for the IGBT fault, output phase open and  
short, and Ground fault without disconnecting the inverter wiring.  
There are 4 options:  
0
1
Self-Diagnostic disabled  
IGBT fault and Ground fault2  
Self-Diagnostic  
function  
H601  
2
3
Output phase short & open circuit and Ground fault  
Ground fault (IGBT fault, Output phase short and open circuit)  
1Selecting the higher number performs all functions within lower numbers.  
2Ground fault of U phase in 2.2KW to 4.0KW inverters and ground fault of  
V phase in other rating inverters may not be detected when selecting “1”.  
Select 3 to make sure to detect all phase of U, V, W  
Once H60 is set to a specific value from 1 to 3 and the terminal defined for this  
function among P1 to P8 terminals is turned ON, the corresponding function is  
conducted, displaying “dIAG”  
To stop this function, press STOP/RESET key on the keypad, turn the defined terminal  
OFF or turn the EST terminal ON.  
Customizing for Your Application  
8-17  
The following table shows the fault type while this function is active.  
No.  
Display  
UPHF  
UPLF  
vPHF  
Fault type  
Switch above IGBT’s U phase fault  
Switch below IGBT’s U phase fault  
Switch above IGBT’s V phase fault  
Switch below IGBT’s V phase fault  
Switch above IGBT’s W phase fault  
Switch below IGBT’s U phase fault  
Output short between U and W  
Output short between U and V  
Output short between V and W  
Ground fault at U phase  
Diagnosis  
1
2
3
Contact sales representatives.  
4
vPLF  
5
WPHF  
WPLF  
UWSF  
vUSF  
6
7
Check for a short in inverter output  
terminal, motor connection  
terminal or the proper motor  
connection.  
8
9
WvSF  
UPGF  
vPGF  
WPGF  
UPOF  
vPOF  
WPOF  
10  
11  
12  
13  
14  
15  
Check for ground fault occurring at  
inverter output cable or motor or  
motor insulation damage.  
Ground fault at V phase  
Ground fault at W phase  
Output open at U phase  
Check for proper connection of the  
motor to the inverter output or  
proper motor connection.  
Output open at V phase  
Output open at W phase  
8.9  
Parameter Read/Write  
Group  
Display  
H91  
H92  
Parameter Name  
[Parameter Read]  
Setting  
Range  
0 to 1  
0 to 1  
Default  
Unit  
1
1
0
Function  
group 2  
[Parameter Write]  
0
Used to read/write Inverter Parameters using remote keypad.  
ATTENTION:Take caution when Parameter write (H92) is  
executed. By doing this, parameters in inverter are cleared  
and parameters in remote keypad are copied to inverter.  
!
8.9.1 Parameter Read  
Step 1. Move to H91 code.  
Step 2. Press Enter ( ) key once. 0 will be displayed.  
Step 3. Press Up ( ) key once. Rd will be displayed.  
Step 4. Press Enter ( ) key twice. Rd will be displayed  
Step 5. H91 is displayed when Parameter read is finished.  
8-18  
VS1-MD AC Drive User Manual  
8.9.2 Parameter Write  
Step 1. Move to H92 code. H92 will be displayed.  
Step 2. Press Enter ( ) key once. 0 will be displayed.  
Step 3. Press Up ( ) key once. Wr will be displayed.  
Step 4. Press Enter ( ) key twice. Wr will be displayed.  
Step 5. H91 is displayed when Parameter read is finished.  
8.10 Parameter Initialization / Lock  
8.10.1 Parameter Initialization  
Group  
Display  
Parameter Name  
Range  
Default  
0
1
2
3
4
5
-
Initialize All Groups  
Initialize Drive Group  
Initialize F 1 Group  
Initialize F 2 Group  
Initialize I/O group  
Function  
group 2  
H93  
[Parameter Initialization]  
0
Select the group to be initialized and perform it in H93 code.  
Press Enter  
is complete.  
key after setting in H93. H93 will be displayed again after initialization  
8.10.2 Password Registration  
Group  
Display  
H94  
H95  
Parameter Name  
Setting  
Range  
Default  
Unit  
[Password Registration]  
-
-
0 to FFFF  
0
Function  
group 2  
[Parameter Lock]  
0 to FFFF  
0
Register password for Parameter lock (H95). Password should be Hex decimal. (0 to 9, A, B, C, D, E, F)  
ATTENTION:Do not forgetthe registered password. Itisneeded  
to unlock parameters.  
!
Factory default password is 0. Enter any new password except 0.  
8.10.2.1 Registering the password for the first time.  
Step 1. Move to H94 code. H94 will be displayed.  
Step 2. Press Enter ( ) key twice. 0 will be displayed.  
Step 3. Register password. (Ex: 123) 123 will be displayed.  
Customizing for Your Application  
8-19  
Step 4. 123 will blink when Enter ( ) key is pressed. 123 will be displayed.  
Step 5. Press Enter ( ) key. H94 will be displayed after the new password has been  
registered.  
8.10.2.2 Changing password. (Current PW: 123 -> New PW: 456)  
Step 1. Move to H94 code. H94 will be displayed.  
Step 2. Press Enter ( ) key. 0 will be displayed.  
Step 3. Enter any number (e.g.: 122). 122 will be displayed.  
Step 4. Press the Enter ( ) key. 0 is displayed because wrong value was entered.  
Password cannot be changed in this status. 0 will be displayed.  
Step 5. Enter the right password. 123 will be displayed.  
Step 6. Press Enter ( ) key. 123 will be displayed.  
Step 7. Enter the new password. (e.g. 456). 456 will be displayed.  
Step 8. Press the Enter ( ) key. Then “456” will blink. 456 will be displayed.  
Step 9. Press Enter ( ) key. H94 will be displayed.  
8.10.3 Parameter Lock  
Group  
Display  
H95  
Parameter Name  
[Parameter Lock]  
[Password Registration]  
Setting  
Range  
Default  
Unit  
-
0 to FFFF  
0
Function  
group 2  
H94  
-
0 to FFFF  
0
This parameter is used to lock the user-set parameters using the password.  
8.10.3.1 Locking the user-set parameters.  
Step 1. Move to H95 code. H9 will be displayed.  
Step 2. Press Enter ( ) key. UL will be displayed.  
Step 3. Parameter value can be changed in UL (Unlock) status. UL will be displayed.  
Step 4. Press Enter ( ) key. 0 will be displayed.  
Step 5. Enter the password created in H94 (e.g.: 123). 123 will be displayed.  
Step 6. Press Enter ( ) key. L will be displayed.  
Step 7. Parameter value cannot be changed in L (Lock) status. L will be displayed.  
Step 8. Press Enter ( ) key. H95 will be displayed.  
8.10.3.2 Unlocking the user-set parameter.  
Step 1. Move to H95 code. H9 will be displayed.  
Step 2. Press Enter ( ) key. L will be displayed.  
Step 3. Parameter value cannot be changed in L(Lock) status. L will be displayed.  
Step 4. Press Enter ( ) key. 0 will be displayed.  
Step 5. Enter the password created in H94 (e.g.: 123). 123 will be displayed.  
8-20  
VS1-MD AC Drive User Manual  
Step 6. Press Enter ( ) key. UL will be displayed.  
Step 7. Parameter value can be changed in UL (Unlock) status. While UL is  
displayed, press Enter ( ) key. H95 will be displayed.  
8.11 Multi-function Output Terminal (MO) and Relay (3AC)  
Group  
Code  
t32  
Parameter  
Setting range  
Initial  
12  
I/O  
group  
[Multi-function output  
terminal Selection]  
0
FDT-1  
FDT-2  
FDT-3  
FDT-4  
FDT-5  
1
t33  
[Multi-function relay  
Selection]  
2
17  
3
4
5
Overload [OL ]  
6
Inverter Overload [IOL ]  
Motor stall [STALL]  
Over voltage trip [OV]  
Low voltage trip [LV]  
Inverter overheat [OH]  
Command loss  
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
During run  
During stop  
During constant run  
During speed searching  
Wait time for run signal input  
Fault output  
Cooling fan trip alarm  
t34  
[Fault relay output]  
When  
setting  
H26  
[Number  
of auto  
restart  
tries]  
Whentrip  
other  
When  
low  
voltage  
trip  
occurs  
than low  
voltage  
trip  
occurs  
Bit 2  
Bit 1  
Bit 0  
0
1
2
3
2
-
-
-
-
-
-
-
-
-
-
4
5
6
7
-
-
Select the desired item to be output via MO terminal and relay (30AC).  
t34: When 17 [Fault display] is selected in t32 and t33, Multi-function output terminal  
and relay will be activated with the value in t34.  
Customizing for Your Application  
8-21  
8.11.1 FDT-1  
Check whether the output frequency matches the user-setting frequency.  
Active condition: Absolute value (preset frequency - output frequency) <= Frequency  
Detection Bandwidth/2  
Group  
Display  
t31  
Parameter Name  
Setting  
Range  
Default  
10.00  
Unit  
Hz  
I/O group  
[Detected Frequency Bandwidth]  
-
0 to 400  
Cannot be set above Max frequency (P36).  
When setting t31 to 10.0  
8.11.2 FDT-2  
Activated when the preset frequency matches frequency detection level (t52) and  
FDT-1 condition is met.  
Active condition: (Preset frequency = FDT level) & FDT-1  
Group  
Display  
t30  
t31  
Parameter Name  
[Detected Frequency level]  
[Detected Frequency Bandwidth]  
Setting  
Range  
Default  
30.00  
10.00  
Unit  
Hz  
-
0 to 400  
I/O  
group  
-
Cannot be set above Max frequency (P36).  
8-22  
VS1-MD AC Drive User Manual  
When setting t30 and t31 to 30.0 Hz and 10.0 Hz, respectively  
8.11.3 FDT-3  
Activated when run frequency meets the following condition.  
Active condition: Absolute value (FDT level - run frequency) <= FDT Bandwidth/2  
Group  
Display  
t30  
Parameter Name  
Setting  
Range  
Default  
30.00  
Unit  
Hz  
[Detected Frequency level]  
[Detected Frequency Bandwidth]  
-
-
0 to 400  
I/O  
group  
t31  
10.00  
Cannot be set above Max frequency (P36).  
When setting t30 and t31 to 30.0Hz and 10.0 Hz, respectively  
8.11.4 FDT-4  
Activated when run frequency meets the following condition.  
Active condition:  
Accel time: Run Frequency >= FDT Level  
Customizing for Your Application  
8-23  
Decel time: Run Frequency > (FDT Level – FDT Bandwidth/2)  
Group  
Display  
t30  
t31  
Parameter Name  
Setting  
Range  
Default  
30.00  
Unit  
Hz  
[Detected Frequency level]  
[Detected Frequency Bandwidth]  
-
-
0 to 400  
I/O  
group  
10.00  
Cannot be set above Max frequency (P36).  
When setting t30 and t31 to 30.0Hz and 10.0 Hz, respectively  
8.11.5 FDT-5  
Activated as B contact contrast to FDT-4.  
Active condition:  
Accel time: Run Frequency >= FDT Level  
Decel time: Run Frequency > (FDT Level – FDT Bandwidth/2)  
Group  
Display  
t30  
Parameter Name  
Setting  
Range  
Default  
30.00  
10.00  
Unit  
Hz  
[Detected Frequency level]  
[Detected Frequency Bandwidth]  
-
0 to 400  
I/O group  
t31  
-
Cannot be set above Max frequency (P36).  
When setting t30 and t31 to 30.0Hz and 10.0 Hz, respectively  
8.11.6 Over Voltage Trip (Ovt)  
Activated when over voltage trip occurs due to DC link voltage exceeded 460Vdc for  
230V class and 820Vdc for 460V class.  
8-24  
VS1-MD AC Drive User Manual  
8.11.7 Low Voltage Trip (Lvt)  
Activated when low voltage trip occurs due to DC link voltage under 180Vdc for 200V  
class and 360Vdc for 400V class.  
8.11.8 Inverter Heatsink Overheat (OHt)  
Activated when the heatsink is overheated.  
8.11.9 Command Loss  
Activated when Analog (V1,I) and RS485 communication commands are lost.  
8.11.10 During Operation  
Activated when run command is input and inverter outputs its voltage.  
8.11.11 During Stop  
Activated during stop without active command.  
8.11.12 During Constant Run  
Activated during constant speed operation.  
Customizing for Your Application  
8-25  
8.11.13 Wait Time for Run Signal Input  
This function becomes active during normal operation and that the inverter waits for  
active run command from external sequence.  
8.11.14 Fault Output  
The parameter set in t34 is activated.  
For example, if setting t33, t34 to 17 and 2, respectively, Multi-function output relay will  
become active when trip other than “Low voltage trip” occurred.  
8.11.15 Cooling Fan Trip Alarm  
Used to output alarm signal when H78 is set to ”0”(constant operation at cooling fan  
trip).  
8-26  
VS1-MD AC Drive User Manual  
8.12 Accel/Decel setting and V/F Control  
Customizing for Your Application  
8-27  
8.13 Control Block Diagram  
8-28  
VS1-MD AC Drive User Manual  
8.14 Frequency and Drive Mode Setting  
Customizing for Your Application  
8-29  
8-30  
VS1-MD AC Drive User Manual  
CHAPTER 9  
Troubleshooting  
ATTENTION: This drive contains high voltage capacitors that take  
time to discharge after removal of mains supply. Before working on the  
drive, ensure isolation of mains supply from line inputs. Wait ten (10)  
minutes for capacitors to discharge to safe voltage levels. Failure to  
observe thisprecaution couldresultinseverebodilyinjuryor lossoflife.  
!
ATTENTION: Only qualified electical personnel familiar with the  
construction and operation of this equipment and the hazards involved  
should install, adjust, operate, or service this equipment. Read and  
understand this manual and other applicable manuals in their entirety  
before proceeding. Failure to observe this precaution could result in  
severe bodily injury or loss of life.  
The VS1MD constantly monitors its status and provides the following ways to  
determine the status of the drive and to troubleshoot problems that may occur:  
LEDS on the drive  
Fault Codes displayed on seven segment display  
Drive monitor and status parameters  
Entries in the fault queue  
9.1 Verifying that DC Bus Capacitors are Discharged  
Before Servicing the Drive  
ATTENTION: DC Buscapacitorsretain hazardous voltages afterinput  
power hasbeen disconnected. After disconnectiong inputpower, wait ten  
(10) minutes for the DC Bus capacitors to discharge and then check the  
voltage with a voltmeter to ensure the DC bus capacitors are discharged  
before touching any internal components. Failure to observe this  
precaution could result in severe bodily injury or loss of life.  
!
The drive’s DC bus capacitors retain hazardous voltages after input power has been  
disconnected. Perform the following steps before touching any internal components:  
Step 1. Turn off and lock out input power. Wait 10 minutes after drive’s 7-segment  
display goes blank.  
Step 2. Open the drive’s cover.  
Step 3. Verify that there is no voltage at the drive’s input power terminals.  
Step 4. Once the drive has been serviced, reattach the drive’s cover.  
Step 5. Reapply input power to the drive.  
Troubleshooting  
9-1  
9.2 Determining Drive Status Using the STP/FLT LED  
The STP/FLT LED can be used to determine at a quick glance the status of the drive.  
If the drive is stopped, but not faulted, this LED will be illuminated solid. If the drive is  
running, this LED will be off. If this LED is flashing, then this indicates that the drive is  
faulted thus requiring attention. Please refer to figure 9.1.  
9.3 Monitoring Drive Status Using the Display  
Parameters  
The Display Group has multiple parameters that can be utilized for monitoring the  
status of the drive and are useful for diagnosing certain situations. Chapter 6  
describes how to display these parameters.  
If the drive is being operated from the terminal strip, it is useful to monitor the status of  
the digital inputs to determine operational problems. The digital input status can be  
monitored by displaying parameter d7. The below describes the details of  
understanding the status of each of the digital inputs (labeled P1 ~ P8 on the control  
board terminal strip). In this example, P1, P3, and P4 are “ON” and P2, P5, P6, P7,  
and P8 are “OFF”.  
(ON)  
(OFF)  
P8  
P7  
P6  
P5  
P4  
P3  
P2  
P1  
9-2  
VS1-MD AC Drive User Manual  
If the application is using digital outputs to reflect the internal status of the drive, these  
can be monitored using parameter d8. The below describes the details of  
understanding the status of each of the digital outputs (labeled MO for the open  
collector output and 3A/3B/3C for the relay output on the control board terminal strip).  
In this example, the multi-function output MO is “ON” and the multi-function relay is  
“OFF” (note that the indication for the multi-function relay is an indication of whether or  
not the relay coil is energized).  
(ON)  
(OFF)  
3A/3B  
MO  
9.4 Reviewing Fault Status of the Drive  
As noted in Chapter 6, the Display Group has an entry that designates if there is an  
active fault and will display the fault code associated with that fault. The fault codes  
are described later in this chapter. While displaying the fault code within the Display  
Group, you can press the enter key to display the frequency the drive was running at  
when the fault occurred. By pressing the up arrow one time, you can display the  
current the drive detected when the fault occurred. By pressing the up arrow again,  
you will display the drive status when the fault occurred.  
Function Group 2 (H parameters) also contains the current fault along with a history of  
the previous 4 faults. These faults are located at parameters H1, H2, H3, H4, and H5.  
As with the fault memory in the Display Group, you can subsequently display the  
frequency, current, and status for each of these faults using the same procedure  
outlined in Chapter 6.  
9.5 Fault Codes  
Fault codes indicate conditions within the drive that require immediate attention. The  
drive responds to a fault by initiating a coast-to-stop sequence and turning off the  
power to the motor.  
The integral keypad provides visual notification of a fault condition by displaying the  
following:  
Fault code on the display. (See table 9.1 for the fault code descriptions.)  
Flashing STP/FLT LED  
Troubleshooting  
9-3  
9.5.1 Manually Clearing Faults  
Step 1. Note the code of the fault condition on the display.  
Step 2. Address the condition that caused the fault. Refer to table 9.1 for a  
description of the fault and corrective actions. The cause must be corrected  
before the fault can be cleared.  
Step 3. After corrective action has been taken, clear the fault and reset the drive.  
9.5.2 Automatically Clearing Faults (Auto Restart Feature)  
The Auto Restart feature provides the ability for the drive to automatically perform a  
fault reset followed by a start attempt without user or application intervention. This  
allows remote operation. This feature can only be used for faults that are  
auto-resettable.  
When this type of fault occurs, and H26 (Auto Restart) is set to a value greater than 0,  
a user-configurable timer, H27 (Retry Delay) begins. When the timer reaches zero, the  
drive attempts to automatically reset the fault. If the condition that caused the fault is  
no longer present, the fault will be reset and the drive will be restarted.  
9-4  
VS1-MD AC Drive User Manual  
9.5.3 Fault Descriptions  
Table 9.1 – Fault Descriptions  
Fault Code/  
Display  
Fault  
Descriptions  
Overcurrent  
The drive diables when the output current is  
detected at a level higher than the inverter rated  
current.  
Ground fault  
current  
The drive disables when a ground fault occurs  
and the ground fault current is greater than the  
internal setting value of the inverter.  
Inverter  
Overload  
The drive disables its output when the output  
current of the inverter is greater than the rated  
level.  
Overload trip  
The drive disables if the output current of the  
inverter is at 150% of the inverter rated current  
for more than the current limit time (1 min).  
Inverter  
overheat  
The drive disables if the heat sink overheats due  
to a damaged cooling fan or a blockage in the  
cooling fan by detecting the temperature of the  
heat sink.  
Output Phase  
loss  
The drive disables its output when one or more  
of the output (U, V, W) phases is open. The drive  
detects the output current to check the output  
phase loss.  
Over voltage  
Low voltage  
The drive disables its output if the DC bus  
voltage increases above the bus overvoltage  
threshold. This fault can also occur due to a  
surge voltage generated at the input terminals.  
The drive disables its output if the DC bus  
voltage is less than the undervoltage threshold  
because insufficient torque or overheating of the  
motor can occur when the input voltage of the  
drive is too low.  
Electronic  
Thermal  
The internal electronic thermal of the drive  
determines the motor heat. If the motor is  
overloaded the inverter disables the output. The  
drive cannot protect the motor when controlling a  
motor having more than 4 poles or multiple  
motors.  
Input phase  
loss  
Drive output is disabled when one of the input  
phases (R, S, T) is open.  
Self-  
diagnostic  
malfunction  
Displayed when IGBT damage, output phase  
short, output phase ground fault or output phase  
open occurs.  
Troubleshooting  
9-5  
Table 9.1 – Fault Descriptions  
Parametersave Displayed when user-modified parameters fail to  
error  
be stored into memory.  
Inverter  
hardware fault  
Displayed when an error occurs in the control  
circuitry of the drive.  
Communication Displayed when the drive cannot communicate  
Error with the keypad.  
Remote keypad Displayed when drive and remote keypad do not  
communication communicate with each other. This fault does not  
error  
stop Inverter operation.  
Keypad error  
Displayed after drive resets keypad upon a  
keypad error and the error remains for a  
predetermined time.  
Cooling fan  
fault  
Displayed when a fault condition occurs in the  
drive cooling fan.  
Instant Cut Off  
Used for the immediate stop of the drive. The  
inverter instantly disables the output when the  
EST terminal is actuated.  
ATTENTION:The inverter resumes regular  
operation when turning off the EST terminal  
while either the FX or the RX terminal is ON.  
!
External fault A When multi-function input terminal (t1-t8) is set  
contact input  
to 18 {External fault signal input: A (Normal Open  
Contact)}, the inverter disables its output.  
External fault B When multi-function input terminal (t1-t8) is set  
contact input  
to 19 {External fault signal input: B (Normally  
Closed Contact)}, the drive disables its output.  
Operating  
method when  
the frequency  
command is  
lost  
When drive operation is set via an Analog input  
(0-10V or 0-20mA input) or option (RS485) and  
the signal is lost,the drive responds according to  
the method set in t62 (Operating method when  
the frequency reference is lost).  
NTC open  
When NTC connection is lost, output is disabled.  
9-6  
VS1-MD AC Drive User Manual  
9.6 Fault Correction  
Use table 9.2 to troubleshoot the drive. If you cannot resolve the problem using this  
table, contact Baldor-Reliance.  
Table 9.2 – Corrective Actions  
Keypad  
Display  
Fault  
Cause  
Remedy  
Accel/Decel time is  
too short compared to  
the inertia of the load.  
Increase the  
Accel/Decel time.  
Overcurrent  
Load is greater than  
the drive rating.  
Replace the inverter  
with appropriate  
capacity  
Inverter enabled when Resume operation  
the motor is rotating.  
after stopping the  
motor or use H22  
(Speed search).  
Output short circuit or  
ground fault has  
occurred.  
Check output wiring.  
Mechanical brake on  
the motor is operating  
incorrectly.  
Check the mechanical  
brake  
ATTENTION:When an overcurrent fault occurs,  
the cause of the fault must be corrected before  
operation is restarted. Failure to observe this  
precaution could result in damage to, or  
destruction of, the IGBT.  
Ground fault  
current  
Ground fault has  
occurred in the output  
wiring of the drive.  
Check the wiring  
between the drive and  
the motor.  
The insulation of the  
motor is damaged.  
Replace the motor.  
Inverter  
Overload  
Load is greater than  
the drive rating.  
Upgrade the capacity  
of motor and drive or  
reduce the load.  
Overload trip  
Torque boost scale is  
set too large.  
Reduce torque boost  
scale.  
Troubleshooting  
9-7  
Table 9.2 – Corrective Actions  
Inverter  
overheat  
Cooling system has  
problems.  
Check for foreign  
substances clogged in  
the heat sink.  
Cooling fan has failed. Replace the old  
cooling fan with a new  
one.  
Ambient temperature  
is too high.  
Keep ambient  
temperature under 50  
degrees C.  
Output Phase  
loss  
Faulty contact in  
output contactor.  
Replace or repair  
output contactor.  
Faulty output wiring  
Check output wiring.  
Cooling Fan  
Fault  
An foreign substance  
is clogged in a  
ventilating slot.  
Check the ventilating  
slot and remove the  
clogged substances.  
Cooling fan has failed. Replace the cooling  
fan.  
Over voltage  
Decel time is too short Increase the Decel  
for the inertia of the  
load.  
time.  
Regenerative load is  
connected to the  
drive.  
Use Dynamic Brake  
Unit.  
Line voltage is too  
high.  
Check to see if line  
voltage exceeds the  
rating.  
Low voltage  
Line voltage is low.  
Check to see if line  
voltage is below the  
rating.  
Load larger than line  
capacity is connected  
to line (ex: welding  
machine, motor with  
high starting current  
connected to the  
Check the incoming  
AC line. Adjust the  
line capacity  
corresponding to the  
load.  
commercial line).  
Faulty contactor on  
the input of the  
inverter.  
Change contactor.  
9-8  
VS1-MD AC Drive User Manual  
Table 9.2 – Corrective Actions  
Electronic  
Thermal  
Motor has  
overheated.  
Reduce load and/or  
duty cycle.  
Load is greater than  
inverter rating.  
Change drive with  
higher capacity.  
ETH level is set too  
low.  
Adjust ETH level to an  
appropriate level.  
Drive capacity is  
incorrectly selected.  
Select correct drive  
capacity.  
External fault A  
contact input  
The terminal set to “18 Eliminate the cause of  
(External fault-A)” or  
“19 (External fault-B)”  
in t1-t8 within terminal.  
fault in the circuit  
connected to external  
fault terminal.  
External fault B  
contact input  
Operating  
method when  
the frequency  
command is  
lost  
No frequency  
command is applied to  
V1 and I.  
Check the wiring of V1  
and I and frequency  
reference level.  
Remote  
keypad  
communication  
error  
Communication error  
between drive keypad  
and remote keypad.  
Check for connection  
of communication line  
and connector.  
Call Baldor-Reliance  
for assistance.  
EEP: Parameter save error  
HWT: Hardware fault  
Err: Communication error  
COM: Keypad error  
NTC: NTC error  
9.7 Overload Protection  
IOLT : IOLT(inverter Overload Trip) protection is activated at 150% of the inverter  
rated current for 1 minute and greater.  
OLT : OLT is selected when F56 is set to 1 and activated at 200% of F57[Motor rated  
current] for 60 sec in F58. This can be programmable.  
Troubleshooting  
9-9  
9-10  
VS1-MD AC Drive User Manual  
APPENDIX A  
Technical Specifications  
Appendix A provides technical specifications for the VS1MD drive..  
Environment  
Altitude  
1000 m, (3300 ft.), max without derating  
2
Vibration  
5.9m/sec , (0.6G)  
Ambient Operating  
Temperature  
-10º to 50º C, (14 to 122º F)  
Storage Temperature -20º to 65º C, (-4 to 149º F)  
Relative Humidity  
Cooling Method  
90%, non-condensing  
Natural Convection / Forced Air Cooling,  
(Fan)  
Atmosphere  
Important: The drive must not be installed in  
an area exposed to volatile or corrosive gas,  
vapors or dust. If the drive will be stored for a  
time before installation, it must be stored in an  
area where it will not be exposed to a  
corrosive atmosphere.  
Control  
Control Method  
V/Hz, Sensorless Vector  
Speed Reference  
Resolution  
Digital command: 0.01Hz  
Analog signal command: 0.06 Hz, (Max freq.,  
60 Hz)  
Frequency Accuracy Digital command: 0.01% of Max output freq.  
Analog signal command: 0.1% of Max output  
freq.  
V/Hz Curve  
Terminal Strip Input  
P1 – P8  
Linear, Squared, User custom V/Hz.  
Multi-function programmable inputs, T/M 1-8  
Common terminal  
CM  
Technical Specifications  
A-1  
V1, Voltage Analog  
Input  
-12 - +12 VDC max.  
I, Analog Current  
Input  
0 – 20 mA, Internal resistor, 250 Ohm  
Terminal Strip Outputs  
VR, Reference  
Power Supply  
12 VDC Output, 10mA max. Potentiometer 1  
– 5 Kohm  
AM, Multi-function  
Analog Output  
Signal  
11 VDC, 100 mA max.  
MO, Multi-function  
Terminal, Open  
Collector  
<26 VDC, 100 mA  
MG, External Power Supply Ground Terminal  
24, Power Supply  
100 mA max output current  
3A  
3B  
Multi-function Relay Output Terminals: Max.  
250 VAC, 1A  
3C, common  
30 VDC, 1A  
A-2  
VS1MD User Manual  
APPENDIX B  
Options & Kits  
B.1 Remote Option  
B.1.1 Remote Keypad  
(3.74)  
(3.27)  
(2.76)  
(0.177)  
0  
(0.55)  
(0.059)  
(0.91)  
(0.083)  
Options & Kits  
B-1  
B.1.2 Remote Cable (2M,3M,5M)  
CAUTION: Only Baldor cables dhould be used to connect the keypad  
!
and control. These are special cables to protect the control and keypad.  
Damage associated with other cable types are not coverd by the Baldor  
warranty.  
B.1.3 Remote Keypad and Cable Model Numbers  
Model number  
Description  
VS1MD-RKEY2  
VS1MD-RKEY3  
VS1MD-RKEY5  
VS1MD to Remote Keypad 2 meter length (6.5 feet)  
VS1MD to Remote Keypad 3 meter length (9.8 feet)  
VS1MD to Remote Keypad 5 meter length (16.4 feet)  
B.1.4 Installation  
Step 1. Remove incoming power from VS1MD and wait 10 minutes.  
Step 2. Take off the top cover of the I/O board kit and remove the hole cover to  
connect remote cable on the side.  
B-2  
VS1MD User Manual  
WARNING: Do not touch any circuit board, power device or electrical  
connection before you first ensure that power has been disconnected and  
there is no high voltage present from this equipment or other equipment to  
which it is connected. Electrical shock can cause serious or fatal injury.  
Only qualified personnel should attempt the start-up procedure or  
troubleshoot this equipment.  
!
WARNING: Do not remove cover for at least ten (10) minutes after AC  
power is disconnected to allow capacitors to discharge. Dangerous  
voltages are present inside the equipment. Electrical shock can cause  
serious or fatal injury.  
!
Step 3. Attach the top cover of the I/O board kit and connect the remote cable as  
shown below.  
Step 4. Connect the other side of the remote cable to the remote keypad as shown  
below.  
ATTENTION:Without Parameter Read (H91), Parameter Write (H92) is  
not available since the Remote memory is empty when the Remote  
keypad is first used.  
!
ATTENTION:Use only the remote cable supplied in the kit. Other cables  
may introduce noise and/or voltage drop and cause erratic or improper  
drive operation.  
ATTENTION:Check for disconnection of the communication cable  
and/or poor cable connection if ì----ì is displayed on the 7-segment  
display of the Remote keypad.  
Options & Kits  
B-3  
B.2 Conduit Kit  
B.2.1 Conduit Kit Model Numbers  
Conduit Kit  
Model  
VS1MD-NM1A  
VS1MD-NM1B  
VS1MD-NM1C  
VS1MD-NM1D  
0.5 and 1.0 HP (0.4 and 0.75 kW)  
2.0 HP (1.5 kW)  
3.0 and 5.0 HP (2.2 and 4.0 kW)  
7.5 and 10.0 HP (5.5 and 7.5 kW)  
B.2.2 VS1MD-NM1A  
B.2.3 VS2MD-NM1B  
B-4  
VS1MD User Manual  
B.2.4 VS1MD-NM1C  
B.2.5 VS1MD-NM1D  
Options & Kits  
B-5  
B.2.6 Installation  
B.2.6.1 VS1MD-NM1A, VS1MD-NM1B, VS1MD-NM1C  
Preparation:  
Step 1. Remove input power from drive and wait 10 minutes before proceeding.  
WARNING: Do not touch any circuit board, power device or electrical  
!
connection before you first ensure that power has been disconnected and  
there is no high voltage present from this equipment or other equipment to  
which it is connected. Electrical shock can cause serious or fatal injury.  
Only qualified personnel should attempt the start-up procedure or  
troubleshoot this equipment.  
WARNING: Do not remove cover for at least ten (10) minutes after AC  
power is disconnected to allow capacitors to discharge. Dangerous  
voltages are present inside the equipment. Electrical shock can cause  
serious or fatal injury.  
!
Step 2. Remove cover from drive exposing the terminal strips.  
Step 3. Remove two screws from ground connection bar inside drive to the left of  
the power terminals. Retain screws.  
Step 4. Remove two screws and cover from front of conduit kit. Retain screws.  
Installation (refer to legends in diagram):  
Step 1. Snap top vent cover onto the top of the drive, ensuring that all four tabs  
correctly engage their respective openings in the drive vent holes.  
Step 2. Place the conduit kit, less the cover, such that the lower left tab with the  
two holes is over the ground connection bar holes and the top right tab is  
inserted in the provided slot, near the bottom right of the drive.  
B-6  
VS1MD User Manual  
Step 3. Install the two screws removed from the ground connection bar during  
preparation Step 3 such that they are inserted through the two holes in the  
conduit kit prior to engaging the ground connection bar. Install the screw  
provded with the conduit kit through the hole in the bottom right corner of the  
drive into the top right tab of the conduit kit.  
Step 4. After connecting conduits and making control and power connections,  
replace the drive cover.  
Step 5. Replace the conduit kit cover utilizing the two screws removed in preparation  
Step 4.  
B.2.6.2 VS1MD-NM1D  
Preparation:  
Step 1. Remove input power from drive and wait 10 minutes before proceeding.  
WARNING: Do not touch any circuit board, power device or electrical  
!
connection before you first ensure that power has been disconnected and  
there is no high voltage present from this equipment or other equipment to  
which it is connected. Electrical shock can cause serious or fatal injury.  
Only qualified personnel should attempt the start-up procedure or  
troubleshoot this equipment.  
WARNING: Do not remove cover for at least ten (10) minutes after AC  
power is disconnected to allow capacitors to discharge. Dangerous  
voltages are present inside the equipment. Electrical shock can cause  
serious or fatal injury.  
!
Step 2. Remove cover from drive, exposing terminal strips.  
Step 3. Remove two screws holding wire gland plate to drive. Retain screws.  
Remove and discard wire gland plate.  
Options & Kits  
B-7  
Step 4. Remove two screws and cover from front of conduit kit. Retain screws.  
Installation:  
Step 1. Slide conduit kit into slots in bottom of drive from which wire gland plate was  
removed.  
Step 2. Install the two screws removed from the wire gland plate during preparation  
Step 3 such that they are inserted through the two holes in the conduit kit  
prior to engaging the tapped holes in the drive.  
Step 3. After connecting conduits and making control and power connections,  
replace the drive cover.  
Step 4. Replace the conduit kit cover utilizing the two screws removed in preparation  
Step 4.  
B.2.7 Conduit Hole Size  
Conduit hole for control wiring  
inches (mm)  
Size of the Conduit  
Inches (Metric)  
Conduit Kit  
Conduit hole for power wiring  
inches (mm)  
0.87 (22.2)  
0.87 (22.2)  
0.87 (22.2)  
0.87 (22.2)  
0.87 (22.2)  
0.87 (22.2)  
0.87 (22.2)  
1.38 (35.0)  
1/2 (16)  
1/2 (16)  
1/2 (16)  
1/2 (16)  
1/2 (16)  
1/2 (16)  
1/2 (16)  
1 (27)  
VS1MD-NM1A  
VS1MD-NM1B  
VS1MD-NM1C  
VS1MD-NM1D  
NOTE: Choose the proper size of the UL recognized Locknut and Bushing  
corresponding to size of the Conduit in use.  
B-8  
VS1MD User Manual  
B.3 Braking Resistor  
100 % braking  
150% braking  
Inverter  
Input  
capacity HP  
Voltage  
1
1
(kW)  
0.5 (0.4)  
1.0 (0.75)  
2.0 (1.5)  
400  
200  
100  
60  
50  
100  
200  
300  
500  
700  
1000  
50  
300  
150  
60  
100  
150  
300  
400  
600  
800  
1200  
100  
150  
300  
400  
600  
1000  
1200  
3.0 (2.2)  
50  
230  
5.0 (3.7)  
7.5 (5.5)  
10.0 (7.5)  
0.5 (0.4)  
1.0 (0.75)  
2.0 (1.5)  
40  
33  
30  
20  
20  
15  
1800  
900  
450  
300  
200  
120  
90  
1200  
600  
300  
200  
130  
85  
100  
200  
300  
500  
700  
1000  
3.0 (2.2)  
460  
5.0 (3.7)  
7.5 (5.5)  
10.0 (7.5)  
60  
1The wattage is based upon a 5% duty cycle with maximum continuous  
braking time of 15 sec.  
Options & Kits  
B-9  
B-10  
VS1MD User Manual  
APPENDIX C  
RS485 Protocol  
C.1 Introduction  
The drive can be controlled and monitored by the program of aPLC or other master  
module.  
Drives or other slave devices may be connected in a multi-drop fashion on the RS-485  
network and may be monitored or controlled by a single PLC or PC. Parameters can  
be set and changed through the PLC or PC.  
C.1.1 Features  
The VS1MD can easily be utilized for factory automation applications because  
operation and monitoring are available by the user’s program.  
Parameter change and monitoring is available via computer. (Ex: Accel/Decel time,  
Freq. Command etc.)  
RS484 Interface:  
1.  
2.  
3.  
Allows the drive to communicate with any other computers or PLC’s.  
Allows connection of up to 31 drives with multi-drop link network.  
Inherent noise immune design.  
Users can use readily available RS232-485 converters. The specifications of  
converters depend on the manufacturers.  
C.1.2 Before Installation  
ATTENTION:Before installation and operation, this manual should be  
read thoroughly. Failure to observe this precaution could result in  
personal injury or damage to the equipment.  
!
RS485 Protocol  
C-1  
C.2 Specifications  
C.2.1 Performance Specifications  
Item  
Specification  
Communication method  
Transmission form  
Applicable inverter  
Converter  
RS485  
Bus method, Multi drop Link System  
VS1MD series  
RS232 converter  
Connectable drives  
Transmission distance  
Max 31  
Max. 1,200m (Within 700m Recommend)  
C.2.2 Hardware Specifications  
Item  
Specification  
Installation  
Use S+, S- terminals on control terminal block  
Power supply  
Use Insulated power from the inverter power supply  
C.2.3 Communication Specifications  
Item  
Specification  
Communication speed  
Control procedure  
Communication system  
Character system  
Stop bit length  
19,200/9,600/4,800/2,400/1,200 bps selectable  
Asynchronous communication system  
Half duplex system  
ASCII (8 bit)  
Modbus-RTU: 2 bit LS Bus: 1 bit  
Sum check  
2 byte  
None  
Parity check  
C-2  
VS1MD User Manual  
C.3 Installation  
C.3.1 Connecting the Communication Line  
Step 1. Connect the RS485 communication line to the inverter’s (S+), (S-) terminals  
of the control terminals.  
Step 2. Check the connection and turn ON the inverter.  
Step 3. If the communication line is connected correctly, set the  
communication-related parameters as follows:  
P38 [Drive mode]: 3(RS485)  
P40 [Freq. mode]: 7(RS485)  
t60 [Inv. Number]: 1 to 250 (If multiple inverters are connected, be sure to use  
different numbers for each inverter)  
t61 [Baud-rate]: 3 (9,600 bps as Factory default)  
t62 [Lost Mode]: 0 - No action (Factory default)  
t63 [Time-Out]: 1.0 sec (Factory default)  
t59 [Comm. Prot]: 0 - Modbus-RTU  
C.3.2 Computer and Inverter Connection  
The maximum number of drives that can be connected is 31.  
The maximum length of communication line is 1200m. To ensure stable  
communication, keep the length to less than 700m.  
C.4 Operation  
C.4.1 Operating steps  
Step 1. Check whether the computer and the inverter are connected correctly.  
Step 2. Turn ON the inverter. But do not connect the load until stable communication  
between the computer and the inverter is verified.  
Step 3. Start the operating program for the inverter from the computer.  
Step 4. Operate the inverter using the operating program for the inverter.  
Step 5. Refer to Chapter 9: Troubleshooting if the communication is not operating.  
RS485 Protocol  
C-3  
C.5 Communication Protocol (MODBUS-RTU)  
Use Modbus-RTU protocol (Open protocol).  
Computer or other hosts can be Master and inverters Slave. Inverter responds to  
Read/Write command from Master.  
Table C.1 – Supported function codes  
Function code  
Description  
0x03  
0x04  
0x06  
0x10  
Read Hold Register  
Read Input Register  
Preset Single Register  
Preset Multiple Register  
Table C.2 – Exception codes  
Function code  
Description  
0x01  
0x02  
0x03  
0x06  
User  
ILLEGAL FUNCTION  
ILLEGAL DATA ADDRESS  
ILLEGAL DATA VALUE  
SLAVE DEVICE BUSY  
0x14  
1.Write Disable (Address 0x0004 value is 0).  
2.Read Only or Not Program during Running.  
define  
C.6 Communication Protocol (LS Bus)  
C.6.1 Basic Format  
Command message (Request):  
ENQ  
1 byte  
Drive No.  
2 bytes  
CMD  
1 byte  
Data  
SUM  
EOT  
1 byte  
n bytes  
2 bytes  
Normal response (Acknowledge Response):  
ACK  
1 byte  
Drive No.  
2 bytes  
CMD  
1 byte  
Data  
SUM  
EOT  
1 byte  
n * 4 bytes  
2 bytes  
Negative response (Negative Acknowledge Response):  
NAK  
1 byte  
Drive No.  
2 bytes  
CMD  
1 byte  
Error code  
2 bytes  
SUM  
EOT  
1 byte  
2 bytes  
C-4  
VS1MD User Manual  
Description:  
Request starts with “ENQ” and ends with “EOT”.  
Acknowledge Response starts with “ACK” and ends with “EOT”.  
Negative Acknowledge Response starts with ”NAK” and ends with “EOT”.  
“Drive Number” is the number of the drive and is indicated in 2 byte ASCII-HEX.  
(ASCII-HEX: Hexadecimal consists of ‘0’ to ‘9’, ‘A’ to ‘F)  
CMD: Capital letter  
Character  
ASCII-HEX  
Command  
R
W
X
52h  
57h  
58h  
59h  
Read  
Write  
Request for monitoring  
Action for monitoring  
Y
Data: ASCII-HEX  
Example: when data value is 3000: 3000 (dec)  
‘0’ ‘B’ ‘B’ ‘8’h  
30h 42h 42h 38h  
Error code: ASCII (20h to 7Fh)  
Receive/Send buffer size: Receive= 39 byte, Send=44 byte  
Monitor register buffer: 8 Word  
SUM: to check the communication error  
SUM= ASCII-HEX format of lower 8 bit of (Drive No. + CMD + DATA)  
Example: Command Message (Request) to read one address from address “3000”  
ENQ  
Drive  
No  
CMD  
Address  
Number of address to  
read  
SUM  
EOT  
05h  
1 byte  
“01”  
“R”  
“3000”  
“1”  
“A7”  
2
04h  
1
2 bytes 1 byte  
4 bytes  
1 byte  
SUM = ‘0’ + ‘1’ + ’R’ + ‘3’ + ‘0’ + ‘0’ + ‘0’ + ‘1’  
=30h + 31h + 52h + 33h + 30h + 30h + 30h + 31h  
= 1A7h (Control values such as ENQ/ACK/NAK are excluded.)  
RS485 Protocol  
C-5  
C.6.2 Detail Communication Protocol  
C.6.2.1 Request for Read:  
Request to read successive ‘N’ numbers of WORD from address “XXXX”.  
ENQ  
Drive No  
CMD  
Addres Number of address to  
read  
SUM EOT  
s
05h  
1 byte  
“01” to  
2 bytes  
“R”  
1 byte  
“XXXX “1” to “8” = n  
4 bytes 1 byte  
“XX”  
2
04h  
1
Total bytes = 12  
Note: Quotation marks (“ ”) indicate character.  
C.6.2.2 Acknowledge Response:  
ACK  
Drive No  
“01” to “1F”  
2 bytes  
CMD  
“R”  
Data  
SUM  
“XX”  
2 byte  
EOT  
06h  
1 byte  
“XXXX”  
04h  
1 byte  
N * 4 bytes  
1 byte  
Total bytes= 7 + n * 4 = Max 39  
C.6.2.3 Negative Acknowledge Response:  
NAK  
Drive No  
CMD  
Error code  
SUM  
EOT  
15h  
“01” to “1F”  
2 bytes  
“R”  
“**”  
“XX”  
04h  
1 byte  
1 byte  
2 bytes  
2 bytes  
1 byte  
Total bytes = 9  
C.6.2.4 Request for Write:  
ENQ  
Drive No  
CMD Address  
Number of  
Data  
SUM  
EOT  
address to  
read  
05h  
“01” to  
“W”  
“XXXX”  
“1” to “8” = n “XXXX  
1 byte n*4  
“XX”  
2
04h  
1
1 byte 2 bytes  
1 byte 4 bytes  
Total bytes = 12 + n * 4 = Max 44  
C-6  
VS1MD User Manual  
C.6.2.5 Acknowledge Response:  
ACK  
06h  
1:byte  
Drive No  
CMD  
Data  
SUM  
“XX”  
2 bytes  
EOT  
“01” to “1F”  
2:bytes  
“W”  
1:byte  
“XXXX…”  
n * 4 bytes  
04h  
1
Total bytes = 7 + n * 4 = Max 39  
Note: When Request for Write and Acknowledge Response is exchanged between  
PC and Inverter for the first time, previous data is returned. From subsequent  
transmissions, the current data will be returned.  
C.6.2.6 Negative Response:  
NAK Drive No  
CMD  
Error code  
“**”  
2 bytes  
SUM  
“XX”  
2 bytes  
EOT  
15h  
“01” to “1F”  
2 bytes  
“W”  
1 byte  
04h  
1
1 byte  
Total bytes = 9  
C.6.2.7 Request for Monitor Register  
This is useful when constant parameter monitoring and data updates are required.  
Request for Register of ‘n’ numbers of Address (not consecutive)  
ENQ  
Drive No CMD  
Number of address to  
read  
Addres  
s
SUM  
EOT  
05h  
1 byte  
“01” to  
“X”  
1
“1” to “8”=n  
1 byte  
“XXXX  
n * 4  
“XX”  
2 byte  
04h  
1
2 bytes  
Total bytes = 8 + n * 4 = Max 40  
C.6.2.8 Acknowledge Response:  
ACK  
Drive No  
CMD  
SUM  
EOT  
06h  
“01” to “1F”  
2 bytes  
“X”  
“XX”  
2 bytes  
04h  
1 byte  
1 byte  
1 byte  
Total bytes = 7  
C.6.2.9 Negative Acknowledge Response:  
NAK  
15h  
Drive No  
CMD  
Error code  
SUM  
EOT  
“01” to “1F” “X”  
“**”  
“XX”  
04h  
1 byte  
2 bytes  
1 byte  
2 bytes  
2 bytes  
1 byte  
Total bytes = 9  
RS485 Protocol  
C-7  
C.6.2.10 Action Request for Monitor Register:  
Request to read address registered by monitor register.  
ENQ  
Drive No  
CMD  
SUM  
EOT  
05h  
“01” to “1F”  
2 bytes  
“Y”  
1 byte  
“XX”  
2 bytes  
04h  
1 byte  
1 byte  
Total bytes = 7  
C.6.2.11Acknowledge Response:  
ACK  
06h  
1 byte  
Drive No  
CMD  
Data  
SUM  
“XX”  
2 bytes  
EOT  
“01” to “1F” “Y”  
“XXXX…”  
n * 4 bytes  
04h  
2 bytes  
1 byte  
1 byte  
Total bytes = 7 + n * 4 = Max 39  
C.6.2.12Negative Response:  
NAK  
Drive No  
“01” to “1F” “Y”  
2 bytes 1 byte  
CMD  
Error code  
SUM  
EOT  
15h  
“**”  
“XX”  
04h  
1 byte  
2 bytes  
2 bytes  
1 byte  
Total bytes = 9  
C.6.2.13Error codes  
Error code  
Description  
“IF”  
When master is sending codes other than Function code (R, W, X,  
When parameter address does not exist  
“IA”  
“ID”  
“WM”  
When Data value exceeds its permissible range during ‘W’ (Write).  
When the specific parameters cannot be written during W’ (Write).  
(For example, in the case of Read Only, Write disabled during Run)  
“FE”  
When frame size of specific function is not correct and Checksum  
C-8  
VS1MD User Manual  
C.7 Troubleshooting  
Refer to Troubleshooting when RS 485 communication error occurs.  
Check Points  
Corrective Measures  
Provide electric power to the converter.  
Is power provided to the converter?  
Are the connections between converter Refer to the converter manual.  
and computer correct?  
Is Master not polling?  
Verify the Master is polling the drive.  
Is baud rate of computer and drive set Set the correct value.  
correctly?  
Is the data format of user program  
correct?  
Set data formats equal between drive and  
computer.  
Is the connection between the converter Check for the correct wiring.  
and the communication card correct?  
RS485 Protocol  
C-9  
C.8 Miscellaneous  
ASCII Code List  
Character  
Hex  
Character  
Hex  
Character  
Hex  
Character  
Hex  
Character  
Hex  
A
B
C
D
E
F
G
H
I
41  
42  
43  
44  
45  
46  
47  
48  
49  
4A  
4B  
4C  
4D  
4E  
4F  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
5A  
a
b
c
d
e
f
g
h
i
J
k
l
m
n
o
p
q
r
61  
62  
63  
64  
65  
66  
67  
68  
69  
6A  
6B  
6C  
6D  
6E  
6F  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
7A  
0
1
2
3
4
5
6
7
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
2A  
2B  
:
;
3A DLE  
3B EM  
3C ACK  
3D ENQ  
EOT  
10  
19  
06  
05  
04  
1B  
17  
03  
0C  
1C  
1D  
09  
0A  
15  
00  
1E  
0F  
0E  
01  
02  
1A  
16  
1F  
0B  
<
=
>
?
@
[
3E ESC  
3F  
40  
ETB  
ETX  
8
9
\
]
5B FF  
5C FS  
5D GS  
5E HT  
J
K
L
space  
!
"
#
$
%
&
'
(
)
*
+
,
-
.
/
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
5F  
60  
LF  
NAK  
{
|
}
to  
BEL  
BS  
CAN  
CR  
DC1  
7B NUL  
7C RS  
7D S1  
7E SO  
s
t
07  
08  
18  
SOH  
STX  
SUB  
u
v
w
x
y
z
0D SYN  
2C DC2  
2D DC3  
2E  
2F  
11  
12  
13  
14  
7F  
US  
VT  
DC4  
DEL  
C-10  
VS1MD User Manual  
DIF  
Documentation  
Improvement Form  
Use this form to give us your comments concerning this publication or to report an  
error that you have found. For convenience, you may attach copies of the pages with  
your comments. After you have completed this form, please return it to:  
Baldor V*S Drives  
Technical Documentation  
6040 Ponders Court  
Greenville, SC 29615  
Fax: 864-284-5483  
Publication Name: VS1MD User Manual  
Publication Date: 2007  
Comments:  
Your Name:  
Company Name:  
Address:  
Date:  
Phone: (  
)
Thank you for your comments.  
Technical Writing Internal Use  
Date:  
DIF Number:  
Follow-Up Action:  
VS1MD User Manual  
Publication MN760-3  
2007 Baldor Electric Company. All rights reserved.  

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