Marathon Monitors Inc.
AACC 2000 (Carbon) Monitor / Controller
Installation and Operation Handbook
COPYRIGHT © 1998
MARATHON MONITORS INC
Marathon Monitors Inc.
Table of contents:
SAFETY and EMC INFORMATION ................................................................... 4
Installation Safety Requirements........................................................................... 5
Installation requirements for EMC.................................................................... 7
Technical Specification......................................................................................... 8
Installation ..........................................................................................................11
Introduction.....................................................................................................13
MECHANICAL INSTALLATION ..................................................................13
Wiring of 2-wire EIA-485 serial communications link.....................................21
OPERATION ......................................................................................................23
FRONT PANEL LAYOUTs.............................................................................24
Basic operation ................................................................................................26
Operating modes..............................................................................................27
Automatic mode...............................................................................................28
MANUAL MODE ...........................................................................................29
PARAMETERS AND HOW TO ACCESS THEM...........................................30
Parameter names..............................................................................................32
Navigation Diagram.........................................................................................33
PARAMETER TABLES..................................................................................37
Alarms.............................................................................................................44
Diagnostic alarms ............................................................................................45
ACCESS LEVELS ..............................................................................................47
Edit level .........................................................................................................50
Setting operator access to a parameter..............................................................50
TUNING .............................................................................................................53
AUTOMATIC TUNING..................................................................................54
MANUAL TUNING ........................................................................................56
Setting the cutback values................................................................................57
motorized valve control....................................................................................59
Gain scheduling...............................................................................................62
CONFIGURATION.............................................................................................63
Selecting configuration level............................................................................64
Changing the passwords ..................................................................................65
User calibration ...................................................................................................85
User Calibration Enable...................................................................................86
Offset calibration .............................................................................................87
Two-point calibration.......................................................................................89
Calibration points and Calibration offsets.........................................................92
Parameter Table (Default)....................................................................................93
INDEX..............................................................................................................102
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SAFETY and EMC INFORMATION
Please read this section carefully before installing the controller
This controller is intended for industrial temperature and process control applications where
it will meet the requirements of the European Directives on Safety and EMC. Use in other
applications, or failure to observe the installation instructions of this handbook may impair
the safety or EMC protection provided by the controller. It is the responsibility of the
installer to ensure the safety and EMC of any particular installation.
Safety
This controller complies with the European Low Voltage Directive 73/23/EEC, amended by
93/68/EEC, by the application of the safety standard EN 61010.
Electromagnetic compatibility
This controller conforms with the essential protection requirements of the EMC Directive
89/336/EEC, amended by 93/68/EEC, by the application of a Technical Construction File.
This instrument satisfies the general requirements of an industrial environment as described
by EN 50081-2 and EN 50082-2. For more information on product compliance refer to the
Technical Construction File.
SERVICE AND REPAIR
This controller has no user serviceable parts. Contact your nearest MMI Service center
(800-322-4444) for repair.
Caution: Charged capacitors
Before removing an instrument from its case, disconnect the supply and wait at least two
minutes to allow capacitors to discharge. Failure to observe this precaution will expose
capacitors that may be charged with hazardous voltages. In any case, avoid touching the
exposed electronics of an instrument when withdrawing it from the case.
Electrostatic discharge precautions
When the controller is removed from its case, some of the exposed electronic components
are vulnerable to damage by electrostatic discharge from someone handling the controller.
To avoid this, before handling the unplugged controller discharge yourself to ground.
Cleaning
Do not use water or water based products to clean labels or they will become illegible.
Isopropyl alcohol may be used to clean labels. A mild soap solution may be used to clean
other exterior surfaces of the product.
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Installation Safety Requirements
Safety Symbols
Various symbols are used on the instrument, they have the following meaning:
Caution, (refer to the
accompanying documents)
Functional earth
(ground) terminal
!
The functional earth connection is not required for safety purposes but to ground RFI filters.
Personnel
Installation must only be carried out by qualified personnel.
Enclosure of live parts
To prevent hands or metal tools touching parts that may be electrically live, the controller
must be installed in an enclosure.
Caution: Live sensors
The fixed digital inputs, non-isolated dc, logic and outputs and the logic output of dual
output modules, are all electrically connected to the main process variable input. If the
temperature sensor is connected directly to an electrical heating element then these non-
isolated inputs and outputs will also be live. The controller is designed to operate under
these conditions. However you must ensure that this will not damage other equipment
connected to these inputs and outputs and that service personnel do not touch connections to
these i/o while they are live. With a live sensor, all cables, connectors and switches for
connecting the sensor and non-isolated inputs and outputs must be mains rated.
Wiring
It is important to connect the controller in accordance with the wiring data given in this
handbook. Take particular care not to connect AC supplies to the low voltage sensor input
or other low level inputs and outputs. Only use copper conductors for connections (except
thermocouple inputs) and ensure that the wiring of installations comply with all local wiring
regulations. For example in the in the UK use the latest version of the IEE wiring
regulations, (BS7671). In the USA use NEC Class 1 wiring methods.
Power Isolation
The installation must include a power isolating switch or circuit breaker. This device
should be in close proximity to the controller, within easy reach of the operator and marked
as the disconnecting device for the instrument.
Earth leakage current
Due to RFI Filtering there is an earth leakage current of less than 0.5mA. This may affect
the design of an installation of multiple controllers protected by Residual Current Device,
(RCD) or Ground Fault Detector, (GFD) type circuit breakers.
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Overcurrent protection
To protect the internal PCB tracking within the controller against excess currents, the AC
power supply to the controller and power outputs must be wired through the fuse or circuit
breaker specified in the technical specification.
Voltage rating
The maximum continuous voltage applied between any of the following terminals must not
exceed 264Vac:
·
·
·
line or neutral to any other connection;
relay or triac output to logic, dc or sensor connections;
any connection to ground.
The controller should not be wired to a three phase supply with an unearthed star
connection. Under fault conditions such a supply could rise above 264Vac with respect to
ground and the product would not be safe.
Voltage transients across the power supply connections, and between the power supply and
ground, must not exceed 2.5kV. Where occasional voltage transients over 2.5kV are
expected or measured, the power installation to both the instrument supply and load circuits
should include a transient limiting device.
These units will typically include gas discharge tubes and metal oxide varistors that limit
and control voltage transients on the supply line due to lightning strikes or inductive load
switching. Devices are available in a range of energy ratings and should be selected to suit
conditions at the installation.
Conductive pollution
Electrically conductive pollution must be excluded from the cabinet in which the controller
is mounted. For example, carbon dust is a form of electrically conductive pollution. To
secure a suitable atmosphere in conditions of conductive pollution, fit an air filter to the air
intake of the cabinet. Where condensation is likely, for example at low temperatures,
include a thermostatically controlled heater in the cabinet.
Over-temperature protection
When designing any control system it is essential to consider what will happen if any part of
the system should fail. In temperature control applications the primary danger is that the
heating will remain constantly on. Apart from spoiling the product, this could damage any
process machinery being controlled, or even cause a fire.
Reasons why the heating might remain constantly on include:
·
·
·
·
·
the temperature sensor becoming detached from the process;
thermocouple wiring becoming a short circuit;
the controller failing with its heating output constantly on;
an external valve or contactor sticking in the heating condition;
the controller setpoint set too high.
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Where damage or injury is possible, we recommend fitting a separate over-temperature
protection unit, with an independent temperature sensor, which will isolate the heating
circuit.
Please note that the alarm relays within the controller will not give protection under all
failure conditions.
Grounding of the temperature sensor shield
In some installations it is common practice to replace the temperature sensor while the
controller is still powered up. Under these conditions, as additional protection against
electric shock, we recommend that the shield of the temperature sensor is grounded. Do not
rely on grounding through the framework of the machine.
Installation requirements for EMC
To ensure compliance with the European EMC directive certain installation precautions are
necessary as follows:
·
·
For general guidance refer to MMI Controls EMC Installation Guide, HA025464.
When using relay or triac outputs it may be necessary to fit a filter suitable for
suppressing the emissions. The filter requirements will depend on the type of load. For
typical applications we recommend Schaffner FN321 or FN612.
·
If the unit is used in table top equipment which is plugged into a standard power socket,
then it is likely that compliance to the commercial and light industrial emissions
standard is required. In this case to meet the conducted emissions requirement, a
suitable mains filter should be installed. We recommend Schaffner types FN321 and
FN612.
Routing of wires
To minimise the pick-up of electrical noise, the wiring for low voltage dc and particularly
the sensor input should be routed away from high-current power cables. Where it is
impractical to do this, use shielded cables with the shield grounded at both ends.
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Technical Specification
Environmental ratings
Panel sealing:
Instruments are intended to be panel mounted. The
rating of panel sealing is IP65, (EN 60529), or 4X, (NEMA
250).
Operating temperature:
ventilation.
0 to 55oC. Ensure the enclosure provides adequate
Relative humidity:
Atmosphere:
5 to 95%, non condensing.
The instrument is not suitable for use above 2000m
or in explosive or corrosive atmospheres.
Equipment ratings
Supply voltage:
100 to 240Vac -15%, +10%, or optionally:
48 to 62Hz.
15 Watts maximum.
Supply frequency:
Power consumption:
Relay 2-pin (isolated):
Maximum: 264Vac, 2A resistive. Minimum: 12Vdc, 100mA.
Relay changeover (isolated): Maximum: 264Vac, 2A resistive. Minimum: 6Vdc, 1mA.
Triac outputs (isolated):
Leakage current:
30 to 264Vac. Maximum current: 1A resistive.
The leakage current through triac and relay contact
suppression components is less than 2mA at 264Vac, 50Hz.
External over current protection devices are required that
match the wiring of the installation. A minimum of 0.5mm2 or
16awg wire is recommended. Use independent fuses for the
instrument supply and each relay or triac output. Suitable
fuses are T type, (EN 60127 time-lag type) as follows;
Instrument supply: 85 to 264Vac, 2A, (T).
Over current protection:
Relay outputs: 2A (T). Triac outputs: 1A (T).
Low level i/o:
All input and output connections other than triac and relay are
intended for low level signals less than 42V.
Single logic output:
DC output (Isolated):
DC output (Non isolated): 0 to 20mA (600W max), 0 to 10V (500W min).
Fixed digital inputs:
Triple contact input:
Triple logic input:
DC or 2nd PV input:
18V at 24mA. (Non-isolated.)
0 to 20mA (600W max), 0 to 10V (500W min).
Contact closure. (Non isolated.)
Contact closure. (Isolated.)
11 to 30Vdc. (Isolated.)
As main input plus 0-1.6Vdc, Impedance, >100MW.
(Isolated.)
Potentiometer input:
Transmitter supply:
Strain gauge supply:
Digital Communications:
0.5V excitation, 100W to 1.5kW Potentiometer. (Isolated.)
24Vdc at 20mA. (isolated.)
10Vdc. Minimum bridge resistance 300W. (Isolated.)
EIA-232, 2-wire EIA-485 or 4-wire EIA-485 (All isolated).
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General
Main PV Input range:
Calibration accuracy:
+100mV, 0 to 10Vdc (auto ranging) and 3 wire Pt100.
The greater of +0.2% of reading, +1 LSD or +1oC.
Cold junction compensation >30:1 rejection of ambient temperature, (for thermocouple
i/p).
Electrical safety
Standards:
EN 61010, Installation category II, pollution degree
2.
CSA C22.2 No.142-M1987.
Installation category II:
Pollution degree 2:
Isolation:
Voltage transients on any mains power connected to the
instrument must not exceed 2.5kV.
Conductive pollution must be excluded from the
cabinet in which the instrument is mounted.
All isolated inputs and outputs have reinforced
insulation to provide protection against electric shock. The
fixed digital inputs, non-isolated dc, logic, and the logic output
of dual output modules, are all electrically connected to the
main process variable input, (thermocouple etc.).
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Installation
Case
Terminal
Ratchets
Display screen
Label
Panel retaining clips
Latching ears
Panel sealing gasket
AACC 2000 1/4 DIN controller
Figure 1 - 3
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Outline dimensions Model 2000
150mm
96mm
5.91in
3.78in
96mm
3.78in
Panel cut-out
92 x 92 mm
Recommended
minimum
spacing of
controllers
-0
+0.8
-0
3.62 x 3.62 in +0.03
Figure 1-4 Outline dimensions Model 2000 controller
The electronic assembly of the controller plugs into a rigid plastic case, which in turn fits
into the standard DIN size panel cut-out shown in Figures 1-3 and 1-4.
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Introduction
Model AACC 2000’s are high stability, process controllers with self and adaptive tuning.
They have a modular hardware construction which accepts up to three plug-in Input/Output
modules and two interface modules to satisfy a wide range of control requirements. Two
digital inputs and an optional alarm relay are included as part of the standard hardware.
Before proceeding, please read the, Safety and EMC Information.
Controller labels
The labels on the sides of the controller identify the ordering code, the serial number, and
the wiring connections.
Appendix A, Understanding the Ordering Code, explains the hardware and software
configuration of your particular controller.
MECHANICAL INSTALLATION
To install the controller
1. Prepare the control panel cut-out to the size shown in Figure 1-3, or 1-4.
2. Insert the controller through the panel cut-out.
3. Spring the upper and lower panel retaining clips into place. Secure the controller in
position by holding it level and pushing both retaining clips forward.
Note: If the panel retaining clips subsequently need removing, in order to extract the
controller from the control panel, they can be unhooked from the side with either your
fingers, or a screwdriver.
Unplugging and plugging-in the controller
If required, the controller can be unplugged from its case by easing the latching ears
outwards and pulling it forward out of the case. When plugging the controller back into its
case, ensure that the latching ears click into place in order to secure the IP65 sealing.
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All electrical connections are made to the screw terminals at the rear of the controller. If
you wish to use crimp connectors, the correct size is AMP part number 349262-1. They
accept wire sizes from 0.5 to 1.5 mm2 (16 to 22 AWG). A set of connectors is supplied with
the controller. The terminals are protected by a clear plastic hinged cover to prevent hands,
or metal, making accidental contact with live wires.
Rear terminal layouts
The rear terminal layouts are shown in Figure 1-6. The right-hand column carries the
connections to the power supply, digital inputs 1 and 2, alarm relay and sensor input. The
second and third columns from the right carry the connections to the plug-in modules. The
connections depend upon the type of module installed, if any. To determine which plug-in
modules are fitted, refer to the ordering code and wiring data on the controller side labels.
Model AACC 2000 rear terminal layout
Figure 1-6 Rear terminal layout
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The display below shows a typical wiring diagram for the AACC2000
Carbon Controller:
Typically a series of letters appear after the part number, see chart below.
D – Dual Relay
A – Analog Output
X – Not Installed
C – Communications
I – Analog Input (typically in position 3)
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Sensor input connections
The connections for the various types of sensor input are shown below.
Resistance
thermometer
Thermocouple
mA input
Volts or mV inputs
V1
V+
V1
V1
V+
V1
V+
2.49W
current
sense
V+
P
V
resistor
v-
v-
v-
v-
Fig 1-7 Sensor input connections
PLUG-IN MODULE CONNECTIONS
Module 1, 2 and 3
Module positions 1, 2 and 3 are plug-in modules. They can be either two terminal modules
of the types shown in Table 1-1, or four terminal modules of the types shown in Table 1-2.
The tables show the connections to each module and the functions that they can perform.
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Two terminal modules
Note:
Module 1 is connected to terminals 1A and 1B
Module 2 is connected to terminals 2A and 2B
Module 3 is connected to terminals 3A and 3B.
Terminal identity
Module type
Relay: 2-pin
A
B
C
D
Possible functions
Unused
Unused
Heating, cooling, alarm,
program event, valve raise,
or valve lower
(2A, 264 Vac max.)
Logic - non-isolated
Heating, cooling, mode 1,
mode 2, program event
+
-
(18Vdc at 20mA)
Triac
Unused
Unused
Heating, cooling, program
event, valve raise, or valve
lower
(1A, 30 to 264Vac)
Line
Load
DC output:
- non-isolated
Heating, or cooling, or
retransmission of PV,
setpoint, or control output
+
-
(10Vdc, 20mA max.)
Table 1-1 Two terminal module connections
Snubbers
The relay and triac modules have an internal 15nF/100W ‘snubber’ connected across their
output, which is used to prolong contact life and to suppress interference when switching
inductive loads, such as mechanical contactors and solenoid valves.
WARNING
When the relay contact is open, or the triac is off, the snubber circuit passes 0.6mA at
110Vac and 1.2mA at 240Vac. You must ensure that this current, passing through the
snubber, will not hold on low power electrical loads. It is your responsibility as the
installer to ensure that this does not happen. If the snubber circuit is not required, it
can be removed from the relay module (BUT NOT THE TRIAC) by breaking the PCB
track that runs crosswise, adjacent to the edge connectors of the module. This can be
done by inserting the blade of a small screwdriver into one of the two slots that bound
it, and twisting.
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Four terminal modules
Note:
Module 1 is connected to terminals 1A, 1B, 1C and 1D
Module 2 is connected to terminals 2A, 2B, 2C and 2D
Module 3 is connected to terminals 3A, 3B, 3C and 3D
Module type
Terminal identity
Possible functions
A
B
C
D
Heating, cooling,or
alarm,
lay: changeover
(2A, 264 Vac max.)
DC control: Isolated
(10V, 20mA max.)
Heating, or cooling
+
-
To power process
inputs
24Vdc transmitter supply
+
-
Motorised Valve
Position feedback
Potentiometer input
100W to 15KW
0V
+0.5Vdc
Retrans. of setpoint,
or process value
DC retransmission
+
-
DC remote input or
Process Value 2
(Module 3 only)
Remote Setpoint
Second PV
±100mV
0-20mA
0-10Vdc RT source
COM
(Refer to Fig. 1-8)
Dual output modules
Heating + cooling
Dual alarms
Valve raise & lower
Dual relay
(2A, 264 Vac max.)
Dual Triac
(1A, 30 to 264Vac)
Heating + cooling
Valve raise & lower
Load
Line
Line
Load
Line
Dual logic + relay
(Logic is non-isolated)
Heating + cooling
+
-
Dual Logic + triac
(Logic is non-isolated)
Heating + cooling
+
-
Load
Triple logic input and output modules - see ratings on the next page
Triple contact input
Triple logic input
Input 1
Input 1
Input 2
Input 2
Input 3
Input 3
Common
Common
Table 1-2 Four terminal module connections.
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Connections for Process Value 3 in module position 3
Thermocouple
Resistance
mA input
Volts or
10V inputs
thermometer
mV inputs
+
3A
3B
3A
3B
3A
3B
3A
3B
3A
Current
sense
resistor
2.49W
+
3B
0-10Vdc
+
3C
3C
3D
3C
3D
3C
3C
3D
0-1.6Vdc
High Impedance
or mVdc
-
-
3D
3D
-
-
Figure 1-8 Connections for Process Value 2 (PV2)
The diagrams above show the connections for the various types of input.
The input will have been configured in accordance with the ordering code.
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Communication module 1
The Models AACC 2000 will accept a plug-in communications modules.
The possible module types are shown in the table below.
The serial communications can be configured for either Modbus, or MMI protocol.
Communications module 1
Terminal identity (COMMS 1)
Module type
HA
HB
HC
HD
HE
HF
2-wire EIA-485 serial
communications
-
-
-
Common
A (-)
B (+)
EIA-232 serial communications
-
-
-
Common
Rx
Tx
Table 1-3 Communication module 1 connections
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Wiring of 2-wire EIA-485 serial communications link
PC
2-wire EIA-485 is a connection which allows up to 32
controllers to be multi-dropped from a single
Com
TX
RX
communications link over a distance of up to 1.2Km.
To ensure reliable operation of the communications
link, (without data corruption due to noise or line
reflections) the connections between the controller
should be made using a twisted pair of wires inside a
screened cable with the connections terminated with
resistors in the manner shown in this diagram.
Local
Earth
232
Local
Earth
Com
RX
TX
MMI Universial
Converter
A
Com
B
A
HE -
Series 2000
Controller
B
Com
HF+
HD
Local
Earth
Local
Ground
Zone 1
Local
Ground
Zone 1
Local
Ground
Zone 2
Local
Earth
A
A
A
B
HE-
Galvanic
Isolation
Barrier
Series 2000
Controller
B
B
Local
Ground
Zone 1
HF+
Com
Com
Com
HD
Local
Earth
Local Earth
Local
Ground
Zone 1
For reasons of safety
do connect to
Up to 32 S2000 controllers or
Interface Units may
be included on the network
not
local earth here.
Local
Earth
A
B
HE-
HF+
Series 2000
Controller
Com
Area 1
HD
Note:
All resistors are 220 ohm 1/4W carbon composition.
Local grounds are at equipotential. Where equipotential is not available wire into
separate zones using a galvanic isolator.
Use a repeater (KD845) for more than 32 units.
Figure 1-9 EIA-485 wiring
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OPERATION
This chapter has nine topics:
·
·
·
·
·
·
·
·
·
FRONT PANEL LAYOUTS
BASIC OPERATION
OPERATING MODES
AUTOMATIC MODE
MANUAL MODE
PARAMETERS AND HOW TO ACCESS THEM
NAVIGATION DIAGRAM
PARAMETER TABLES
ALARMS
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FRONT PANEL LAYOUTs
Figure 2-1 Model AACC 2000 front panel layout
2 6 .0
2 0 .0
Page
Scroll
Down
Up
Button
Button
Button
Button
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Button or
indicator
Name
Explanation
When lit, it indicates that the output installed in
module position 1 is on. This is normally the
heating output on a temperature controller.
OP1
OP2
Output 1
Output 2
When lit, it indicates that the output installed in
module position 2 is on. This is normally the
cooling output on a temperature controller.
When lit, this indicates that setpoint 2, (or a
setpoint 3-16) has been selected.
SP2
Setpoint 2
When lit, this indicates that a remote setpoint
input has been selected.
REM
Remote setpoint
‘REM’ will also flash when communications is
active.
When pressed, this toggles between automatic
and manual mode:
· If the controller is in automatic mode the
AUTO light will be lit.
· If the controller is in manual mode, the MAN
light will be lit.
Auto/Manual
button
The Auto/Manual button can be disabled in
configuration level.
· Press once to start an automatic Probe care
cycle
· This RUN light indicates when ever a probe
Run/Hold button
Page button
care function is in progress
Press to select a new list of parameters.
Scroll button
Down button
Up button
Press to select a new parameter in a list.
Press to decrease a value in the lower readout.
Press to increase a value in lower readout.
Figure 2-3 Controller buttons and indicators
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Basic operation
Switch on the power to the controller. It runs through a self-test sequence for about three
seconds and then shows the process value, in the upper readout and the setpoint, in the
lower readout. This is called the Home display.
Process Value (PV)
26.0
Setpoint
20.0
Figure 2-4 Home display
You can adjust the setpoint by pressing the
or
buttons. Two seconds after
releasing either button, the display blinks to show that the controller has accepted the
new value.
OP1 will light whenever output 1 is ON. This is normally the heating output when used
as a temperature controller.
OP2 will light whenever output 2 is ON. This is normally the cooling output when used
as a temperature controller.
Note: You can get back to this display at any time by pressing
and
together.
Alternatively, you will always be returned to this display if no button is pressed for 45
seconds, or whenever the power is turned on.
Alarms
If the controller detects an alarm condition, it flashes an alarm message in the Home
display. For a list of all the alarm messages, their meaning and what to do about them,
see Alarms at the end of this chapter.
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Operating modes
The controller has two basic modes of operation:
·
Automatic mode in which the output is automatically adjusted to maintain the
temperature or process value at the setpoint.
·
Manual mode in which you can adjust the output independent of the setpoint.
You toggle between the modes by pressing the AUTO/MAN button. The displays which
appear in each of these modes are explained in this chapter.
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Automatic mode
You will normally work with the controller in automatic mode. If the MAN light is on,
press the AUTO/MAN button to select automatic mode. The AUTO light comes on
Power on
The Home display
Check that the AUTO light is on.
The upper readout shows the measured
temperature.
The lower readout shows the setpoint.
To adjust the setpoint up or down, press
or
.
(Note: If Setpoint Rate Limit has been
enabled, then the lower readout will show
the active setpoint. If
it will change to show and allow
adjustment of, the target setpoint.)
or
is pressed,
Press once
Display units
A single press of
will flash the
display units for 0.5 seconds, after which
you will be returned to the Home display.
Flashing of the display units may have
been disabled in configuration in which
case a single press will take you straight to
the display shown below.
x 2
Press
twice
% Output power demand
The % output power demand is displayed
in the lower readout. This is a read-only
value. You cannot adjust it.
Press
and
together to return to the
Home display.
Pressing
from the Output Power display may access further parameters. These may
be in this scroll list if the ‘Promote’ feature has been used (see Chapter 3, Access Level).
When you reach the end of this scroll list, pressing
display.
will return you to the Home
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MANUAL MODE
If the AUTO light is on, press the AUTO/MAN button to select manual mode.
The MAN light comes on.
Power on
The Home display
Check that the MAN light is on.
The upper readout shows the measured
temperature, or process value. The lower
readout shows the % output.
To adjust the output, press
or . .
(Note: If Output Rate Limit has been enabled,
then the lower readout will show the working
output. If
or
.
is pressed, it will
change to show and allow adjustment of, the
target output.)
Press
once.
Display units
A single press of
flashes the display units
for 0.5 seconds, after which you are returned
to the Home display.
Flashing of the display units may have been
disabled in configuration, in which case a
single press will take you straight to the
display shown below.
x 2
Press
twice.
Setpoint
To adjust the setpoint value, press
or
.
Press
.
Pressing
from the Output Power display may access further parameters. These may
be in this scroll list if the ‘Promote’ feature has been used (see Chapter 3, Edit Level).
When you reach the end of this scroll list, pressing
display.
will return you to the Home
29
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PARAMETERS AND HOW TO ACCESS THEM
Parameters are settings, that determine how the controller will operate. For
example, alarm setpoints are parameters that set the points at which alarms will
occur. For ease of access, the parameters are arranged in lists as shown in the
navigation diagram on Pages 2-10 and 2-11. The lists are:
Home list
Probe list
Care list
User list
Autotune list
PID list
Motor list
Setpoint list
Input list
Output list
Communications
list
Information list
Access list.
Alarm list
Each list has a ‘List Header’ display.
List header displays
List name
Always displays Li ST
Figure 2-5 Typical list header
display
A list header can be recognized by the fact that it always shows ‘Li St ’ in the
lower readout. The upper readout is the name of the list. In the above example,
‘AL’ indicates that it is the Alarm list header. List header displays are read-
only.
To step through the list headers, press
. Depending upon how your controller
has been configured, a single press may momentarily flash the display units. If
this is the case, a double press will be necessary to take you to the first list
header. Keep pressing
you to the Home display.
to step through the list headers, eventually returning
To step through the parameters within a particular list, press
. When you
reach the end of the list, you will return to the list header. From within a list you
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can return to the current list header at any time can by pressing
. To step to
the next list header, press
once again.
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Parameter names
In the navigation diagram, each box shows the display for a selected parameter.
The Operator parameter tables, later in this chapter, list all the parameter names
and their meanings.
The navigation diagram shows all the parameters that can, potentially, be
present in the controller. In practice, a limited number of them appear, as a
result of the particular configuration.
The shaded boxes in the diagram indicate parameters that are hidden in normal
operation. To view all the available parameters, you must select Full access
level. For more information about this, see Chapter 3, Access Levels.
Parameter displays Each list has a ‘List Header’ display.
Parameter displays
parameter name
parameter value
Figure 2-6 Typical parameter display
Parameter displays show the controller’s current settings. The layout of
parameter displays is always the same: the upper readout shows the parameter
name and the lower readout its value. In the above example, the parameter name
is 1 FSL (indicating Alarm 1, full scale low), and the parameter value is 1 0 .0 .
To change the value of a parameter
First, select the required parameter.
To change the value, press either
change the value by one digit.
or . During adjustment, single presses
Keeping the button pressed speeds up the rate of change.
Two seconds after releasing either button, the display blinks to show that the
controller has accepted the new value.
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Navigation Diagram (Part A) (THE PARAMETERS THAT APPEAR DEPEND UPON
HOW THE CONTROLLER HAS BEEN CONFIGURED)
Home
List
Probe
List
Care
List
Alarm
List
USEr
LI ST
2 0 .0
Pr o b
CAr E
AL
2 0 .0
LI ST
LI ST
LI ST
n 1
0 .1
OP
PF
Ca r e
1 - - -
1 0 0 .0
0 .1
1
n 2
0 .1
i mP.r
m- A
OFFS
2 - - -
Pr t .r
0 .0
Au t o
0 .0 1
1
0 .0
n 3
0 .1
r EF
H- CO
3 - - -
t mi n
1
1 0 .0
1
0 .1
n 4
0 .1
Pt c
4 - - -
Pt i
1 0
1
1 OFF
n 5
0 .1
Pmu
HY 1
i mp .h
1 0
1
1 0 .0
AI i n
HY 2
Pt r t
1 0
1
1 0 .0
n 1 5
0 .1
HY 3
b o t
1
1 5 .0
HY 4
b o r t
1
1 0 .0
Lb t
FDE
OFF
5 .0
d i AG
t 2 C
User
List
n o
0 .0
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Autotune
List
PID
List
Motor
List
Setpoint
List
At u
Pi d
mt r
SP
n
Li St
Li St
Li St
Ti .2
t u n E
G.SP
t m
SSEL
3 0 0
OFF
5 0 0
3 0 .0
SP
1
Td .2
Ad c
SEt
I n .t
SP 1
5 0 0
mAn
PI D.1
OFF
2 0 .0
r ES.2
Pb
b Ac T
SP 2
0 .0
5
OFF
0 .0
Hc b 2
Ti
mP.T
Au t o
3 0 0
Au t o
SPL
0 .0
Lc b 2
Td
U.b r
Au t o
6 0 .0
DWn
SPH
1 0 0 .0
r EL.2
r ES
1 .0 0
0 .0
SP2 L
0 .0
FF.Pb
Hc b
0 .0
Au t o
SP2 H
1 0 0 .0
FF.d u
Lc b
1 0 0 .0
Au t o
SPr r
OFF
r EL
Hb t Y
OFF
Pb 2
1 0
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Input
List
Output
List
Comms
List
Information
List
i P
o P
c mS
i n F
Li St
Li St
Li St
o
c j c 1
Fi LT
OP.Lo
Ad d r
d i SP
0
d b
OFF
0 .0
1
STD
0 .0
L1 .1
FLt .2
OP.Hi
Lo G.L
0
Sb .OP
1 P.1
1 0 0 .0
0 .0
1 0 0 .0
L1 .2
PU.1 P
OPr r
Lo G.H
0
OFF
OFF
1 0 0 .0
L1 .3
FLT.3
FOP
Lo G.A
0
OFF
0 .0
5 0 .0
PVSL
CAL
CYC.1
Lo G.T
1 P1
FACT
2 0 .0
1 0 0 .0
o f s 1
h YS.1
Lo G.u
0 F
1 .0
0 .0
o f s 2
o n T.1
r ES.L
0
Au t o
n o
mv .1
CYC.2
mCT
0
5 .0
0
mv .2
h YS.2
w.OP
0
1 .0
0 .0
mv .3
o n T.2
FF.OP
0
Au t o
0
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Access
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PARAMETER TABLES
Name
Description
Home list
Home
OP
Measured value and Setpoint
% Output level
Target setpoint (if in Manual mode )
Auto-man select
S P
m- A
r e F
Customer defined identification number
+ Extra parameters, if the ‘Promote’ feature has been used (see Chapter 3, Edit
Level).
Name
Description
Probe list
Process Factor
P r o b
P F
Millivolt input OFFSET
Hydrogen or CO constant
OF F S
H- CO
P Tc
Probe Temperature
Probe millivolts
AUX input
P mu
Ai n
Name
Description
Care list
Ca r e
Ca r e
P r t r
Tmi n
P Ti
Probe care operation selection
MMI actual Probe recovery time
Minimum temperature for care procedure
Probe care cycle time
Maximum probe impedance
Impedance test recovery time
Burn off time
i mp .H
P t r t
b o t
Burn off recovery time
Final delay time
b o r t
F d E
Time to next care
t 2 C
impedance test result
i mp .r
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Name
Description
User list
user parameter #1
user parameter #2
user parameter #3
user parameter #4
user parameter #5 - 15
Us e r
n 1
n 2
n 3
n 4
n 5 - 1 5
Name Description
Alarm list
AL
1 -
Alarm 1 setpoint value
Alarm 2 setpoint value
Alarm 3 setpoint value
Alarm 4 setpoint value
-
-
-
-
-
-
-
-
2 -
3 -
4 -
In place of dashes, the last three characters indicate the alarm type. See alarm types
table:
Alarm 1 Hysteresis (display units)
Alarm 2 Hysteresis (display units)
Alarm 3 Hysteresis (display units)
Alarm 4 Hysteresis (display units)
Loop Break Time in minutes
Enable Diagnostic alarms ‘n o ’ / ‘YES’
Alarm types table
HY 1
HY 2
HY 3
HY 4
Lb t
d i AG
PV Full scale low alarm
- F S L
- F S H
- d Ev
- d Hi
- d Lo
- LCr
- HCr
- F L2
- F H2
- LOP
- HOP
- LS P
- HS P
4 r At
PV Full scale high alarm
PV Deviation band alarm
PV Deviation high alarm
PV Deviation low alarm
Load Current low alarm
Load Current high alarm
Input 2 Full Scale low alarm
Input 2 Full Scale high alarm
Working Output low alarm
Working Output high alarm
Working Setpoint low alarm
Working Setpoint high alarm
Rate of change alarm (AL 4 only)
Autotune list
At u n
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One-shot autotune enable
t u n E
d r A
d r A.t
Ad c
Adaptive tune enable
Adaptive tune trigger level in display units. Range = 1 to 9999
Automatic Droop Compensation (PD control only)
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Name Description
PID list
P i d
If Gain Scheduling has been enabled (see Chapter 4), this parameter sets
G.S P
the PV below which ‘Pi d .1 ’ is active and above which ‘Pi d .2 ’ is active.
S Et
P b
‘Pi d .1 ’ or ‘Pi d .2 ’ selected
Proportional Band
(in display units)
(SEt 1 )
t i
Integral Time in secs(SEt 1 )
Derivative Time in secs
Manual Reset (%)
Cutback High
t d
(SEt 1 )
r ES
Hc b
Lc b
(SEt 1 )
(SEt 1 )
Cutback Low
(SEt 1 )
r EL.C Relative Cool Gain
(SEt 1 )
P b 2
Proportional Band
Integral Time in secs(SEt 2 )
Derivative Time in secs
Manual Reset (%)
Cutback High
(SEt 2 )
t i 2
t d 2
(SEt 2 )
r ES .2
Hc b 2
Lc b 2
r EL.2
(SEt 2 )
(SEt 2 )
Cutback Low
(SEt 2 )
Relative Cool Gain
(SEt 2 )
The following three parameters are used for cascade control. If this facility is not
being used, then they can be ignored.
SP, or PV, feedforward propband
Feedforward trim %
F F .P b
F F .t r
F F .d v
PID feedforward limits ± %
Motor list - see Table 4-3
Valve travel time in seconds
Valve inertia time in secs
mt r
t m
I n .t
b Ac .t
mp .t
U.b r
Valve backlash time in secs
Minimum ON time of output pulse
Valve sensor break strategy
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Name Description
Setpoint list
S P
SSEL
SP 1
SP 2
SP L
SP H
SP2 .L
SP2 .H
SPr r
Hb .t y
Select SP 1 to SP1 6 , depending on configuration
Setpoint one value
Setpoint two value
Setpoint 1 low limit
Setpoint 1 high limit
Setpoint 2 low limit
Setpoint 2 high limit
Setpoint Rate Limit
Holdback Type for setpoint rate limit (OFF, Lo , Hi , or b An d )
Input list
i P
IP1 filter time constant (0.0 - 999.9 seconds).
IP2 filter time constant (0.0 - 999.9 seconds).
Selects ‘i p .1 ’ or ‘i p .2 ’
DC input Filter Time Constant
User Calibration Enable
simple offset
Fi Lt
FLt .2
PV.i p
FLt .3
CAL
OFS.1
OFS.2
mV.1
PV2 simple offset
ADC Converter millivolts
ADC Converter millivolts PV2
Second PV millivolts input
IP1 cold junction temp. reading
IP2 cold junction temp. reading
IP1 linearised value
mV.2
mV.3
CJ C.1
CJ C.2
Li .1
IP2 linearised value
Li .2
DC Input 3
Li .3
Current Input or Inputs used for PV
PV.SL
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Name Description
Output list
Does not appear if Motorised Valve control configured.
o P
Low power limit (%)
High power limit (%)
Output Rate Limit (% per sec)
Forced output level (%)
OP.Lo
OP.Hi
OPr r
FOP
Heat cycle time (0.2S to 999.9S)
Heat hysteresis (display units)
Heat output min. on-time (secs)
Auto (0.05S), or 0.1 - 999.9S
Cool cycle time (0.2S to 999.9S)
CYC.H
h YS.H
o n t .H
CYC.C
h YS.C
o n t .C
Cool hysteresis (display units)
Cool output min. on-time (secs)
Auto (0.05S), or 0.1 - 999.9S
Heat/cool deadband (display units)
HC.d b
Sb .OP
Sensor Break Output Power (%)
Comms list
c mS
Communications Address
Ad d r
Information list
i n F o
Configure lower readout of Home display to show:
d i SP
VPo S
St d
AmPS
OP
Valve position
Standard - display setpoint
Load current in amps
Output
St a t
Pr G.t
Program status
Program time remaining in
Process value 2
hours
Li
2
r At
Ratio setpoint
Pr G
r SP
Selected program number
Remote setpoint
PV minimum
PV maximum
PV mean value
Time PV above Threshold level
PV Threshold for Timer Log
Lo G.L
Lo G.H
Lo G.A
Lo g .t
Lo g .v
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Name Description
Information list - continued
Logging Reset - ‘YES/n o ’
i n F o
r ES.L
The following set of parameters is for diagnostic purposes.
Processor utilisation factor
Working output
mCt
w.OP
FF.OP
VO
P OP
I OP
d OP
Feedforward component of output
PID output to motorised valve
Proportional component of output
Integral component of output
Derivative component of output
Access List
ACCS
Access password
c o d E
Go t o Goto level - OPEr , Fu LL, Ed i t or c o n F
Configuration password
Co n F
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Alarms
Alarm annunciation
Alarms are flashed as messages in the Home display. A new alarm is displayed as a
double flash followed by a pause, old (acknowledged) alarms as a single flash followed
by a pause. If there is more than one alarm condition, the display cycles through all the
relevant alarm messages. Table 2-1 and Table 2-2 list all of the possible alarm messages
and their meanings.
Alarm acknowledgement and resetting
Pressing both
and
at the same time will acknowledge any new alarms and reset
any latched alarms.
Alarm modes
Alarms will have been set up to operate in one of several modes, either:
·
·
·
Non-latching, which means that the alarm will reset automatically when the Process
Value is no longer in the alarm condition.
Latching, which means that the alarm message will continue to flash even if the
alarm condition no longer exists and will only clear when reset.
Blocking, which means that the alarm will only become active after it has first
entered a safe state on power-up.
Alarm types
There are two types of alarm: Process alarms and Diagnostic alarms.
Process alarms
These warn that there is a problem with the process which the controller is trying to
control.
Alarm
Display
Alarm
Display
What it means
What it means
Input 2 Full Scale Low
alarm
PV Full Scale Low alarm
PV Full Scale High alarm
PV Deviation Band alarm
PV Deviation High alarm
PV Deviation Low alarm
Load Current Low alarm
_FL2 *
_FH2 *
_LOP*
_HOP*
_LSP*
_FSL*
_FSH*
_d Ev *
_d Hi *
_d Lo *
_LCr *
p .FLt
Input 2 Full Scale High
alarm
Working Output Low
alarm
Working Output High
alarm
Working Setpoint Low
alarm
Probe impedance test
fault.
* In place of the dash, the first character will indicate the alarm number.
Table 2-1 Process alarms
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Diagnostic alarms
These indicate that a fault exists in either the controller or the connected devices.
Display
shows
What it means
What to do about it
Electrically Erasable Memory
Error:
The value of an operator, or
configuration, parameter has
been corrupted.
This fault will automatically take you into
Configuration level. Check all of the
configuration parameters before returning
to Operator level. Once in Operator level,
check all of the operator parameters
before resuming normal operation. If the
fault persists, or occurs frequently,
contact MMI Controls.
EE.Er
Sensor Break:
Check that the sensor is correctly
connected.
S .b r
Input sensor is unreliable or
the input signal is out of
range.
Loop Break
The feedback loop is open
circuit.
Check that the heating and cooling
circuits are working properly.
L.b r
Hardware error
Check that the correct modules are fitted.
Hw.Er
Indication that a module is of
the wrong type, missing, or
faulty.
No I/O
None of the expected I/O
modules is fitted.
This error message normally occurs
when pre-configuring a controller without
installing any of the required I/O modules.
n o .i o
r mt .F
Remote input failure. the
remote DC input, is open or
short circuit
Check for open, or short circuit wiring on
the remote DC input.
Out of range low reading
Out of range high reading
Error 1: ROM self-test fail
Error 2: RAM self-test fail
Error 3: Watchdog fail
Check the value of the input.
Check the value of the input.
Return the controller for repair.
Return the controller for repair.
Return the controller for repair.
LLLL
HHHH
Er r 1
Er r 2
Er r 3
Er r 4
Error 4: Keyboard failure
Stuck button, or a button was
pressed during power up.
Switch the power off and then on, without
touching any of the controller buttons.
Error 5: Faulty internal
Check printed circuit board
Er r 5
interconnections. If the fault cannot be
cleared, return the controller for repair.
communications.
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Table 2-2b Diagnostic alarms
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ACCESS LEVELS
This chapter describes the different levels of access to the operating parameters within
the controller.
There are three topics:
·
·
·
THE DIFFERENT ACCESS LEVELS
SELECTING AN ACCESS LEVEL
EDIT LEVEL
THE DIFFERENT ACCESS LEVELS
There are four access levels:
·
·
·
Operator level, which you will normally use to operate the controller.
Full level, which is used to commission the controller.
Edit level, which is used to set up the parameters that you want an operator to be able
to see and adjust when in Operator level.
·
Configuration level, which is used to set up the fundamental characteristics of the
controller.
Access
level
Display What you can do
shows
Password
Protection
Operator
In this level, operators can view and adjust the
value of parameters defined in Edit level (see
below).
No
Yes
Yes
OPEr
Fu LL
Ed i t
Full
In this level, all the parameters relevant to a
particular configuration are visible. All alterable
parameters may be adjusted.
Edit
In this level, you can determine which parameters
an operator is able to view and adjust in Operator
level. You can hide, or reveal, complete lists,
individual parameters within each list and you can
make parameters read-only or alterable. (See Edit
level at the end of this chapter).
Configuration
This special level allows access to set up the
fundamental characteristics of the controller.
Yes
c o n F
Figure 3-1 Access levels
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SELECTING AN ACCESS LEVEL
Access to Full, Edit or Configuration levels is protected by a password to prevent
unauthorised access.
If you need to change the password, see Chapter 6, Configuration.
Access list header
Press
until you reach the access list header
‘ACCS’.
Press
Password entry
The password is entered from the ‘c o d E’ display.
Enter the password using
or
. Once the
correct password has been entered, there is a two
second delay after which the lower readout will
change to show ‘PASS’ indicating that access is
now unlocked.
The pass number is set to ‘1 ’ when the controller is
shipped from the factory.
Note; A special case exists if the password has
been set to ‘0 ’. In this case access will be
permanently unlocked and the lower readout will
always show ‘PASS’.
Press
to proceed to the ‘Go t o ’ page.
(If an incorrect password has been entered and the
controller is still ‘locked’ then pressing
returns
you to the ‘ACCS’ list header.)
Access to Read-only Configuration
From this display, pressing
and
together will take you into Read-Only
Configuration without entering a password.
This will allow you to view all of the
configuration parameters, but not adjust them.
If no button is pressed for ten seconds, you
will be returned to the Home display.
Alternatively, pressing
and
together
takes you immediately back to the Home
display
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Level selection
The ‘Go t o ’ display allows you to select the
required access level.
Use
and
to select from the following
display codes:
OPEr : Operator level
Fu LL: Full level
Ed i t : Edit level
c o n F: Configuration level
Press
If you selected either ‘OPEr ’, ‘Fu LL’ or
‘Ed i t ’ level you will be returned to the
‘ACCS’ list header in the level that you
chose. If you selected ‘c o n F’, you will get
a display showing ‘Co n F’ in the upper
readout (see below).
Configuration password
When the ‘Co n F’ display appears, you must
enter the Configuration password in order to
gain access to this level. Do this by
repeating the password entry procedure
described in the previous section.
The configuration password is set to ‘2 ’
when the controller is shipped from the
factory. If you need to change the
configuration password, see Chapter 6,
Configuration.
Alternative path if
‘c o n F’ selected
Press
Configuration level
The first display of configuration is shown.
See Chapter 6, Configuration, for details of
the configuration parameters.
For instructions on leaving configuration
level, see Chapter 6, Configuration.
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Returning to Operator Level
To return to operator level from either ‘Fu LL’ or ‘Ed i t ’ level, repeat entry of the
password and select ‘OPEr ’ on the ‘Go t o ’ display.
In ‘Ed i t ’ level, the controller will automatically return to operator level if no button is
pressed for 45 seconds.
Edit level
Edit level is used to set which parameters you can view and adjust in Operator level. It
also gives access to the ‘Promote’ feature, which allows you to select and add (‘Promote’)
up to twelve parameters into the Home display list, thereby giving simple access to
commonly used parameters.
Setting operator access to a parameter
First you must select Ed i t level, as shown on the previous page.
Once in Ed i t level, you select a list, or a parameter within a list, in the same way as
you would in Operator, or Full, level - that is to say, you move from list header to list
header by pressing
, and from parameter to parameter within each list using
.
However, in Edit level what is displayed is not the value of a selected parameter, but a
code representing that parameter’s availability in Operator level.
When you have selected the required parameter, use
availability in Operator level.
and
buttons to set its
There are four codes:
ALt r Makes a parameter alterable in Operator level.
P r O
Promotes a parameter into the Home display list.
r EAd Makes a parameter, or list header, read-only (it can be viewed but not altered).
HI d E Hides a parameter, or list header.
For example:
The parameter selected is Alarm 2, Full Scale Low
It will be alterable in Operator level
Hiding or revealing a complete list
To hide a complete list of parameters, all you have to do is hide the list header. If a list
header is selected, only two selections are available: r EAd and HI d E.
(It is not possible to hide the ‘ACCS’ list, which always displays the code: ‘Li St ’.)
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Promoting a parameter
Scroll through the lists to the required parameter and choose the ‘Pr O’ code. The
parameter is then automatically added (promoted) into the Home display list. (The
parameter will also be accessible, as normal, from the standard lists.) A maximum of
twelve parameters can be promoted. Promoted parameters are automatically ‘alterable’.
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This sheet intentionally left blank
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TUNING
Before tuning, please read Chapter 2, Operation, to learn how to select and change a
parameter.
This chapter has five topics:
·
·
·
·
·
WHAT IS TUNING?
AUTOMATIC TUNING
MANUAL TUNING
COMMISSIONING OF MOTORISED VALVE CONTROLLERS
GAIN SCHEDULING
WHAT IS TUNING?
In tuning, you match the characteristics of the controller to those of the process being
controlled in order to obtain good control. Good control means:
·
·
·
Stable, ‘straight-line’ control of the process variable at setpoint without fluctuation
No overshoot, or undershoot, of the process variable setpoint
Quick response to deviations from the setpoint caused by external disturbances,
thereby rapidly restoring the process variable to the setpoint value.
Tuning involves calculating and setting the value of the parameters listed in Table 4-1.
These parameters appear in the ‘Pi d ’ list.
Parameter
Code
Meaning or Function
Proportional
band
The bandwidth, in display units, over which the output power is
proportioned between minimum and maximum.
Pb
Integral time
Derivative time
High Cutback
Determines the time taken by the controller to remove steady-
state error signals.
t i
Determines how strongly the controller will react to the rate-of-
change of the measured value.
t d
The number of display units, above setpoint, at which the
controller will increase the output power, in order to prevent
undershoot on cool down.
Hc b
Low cutback
The number of display units, below setpoint, at which the
controller will cutback the output power, in order to prevent
overshoot on heat up.
Lc b
r EL
Relative cool
gain
Only present if cooling has been configured and a module is
fitted. Sets the cooling proportional band, which equals the Pb
value divided by the r EL value.
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AUTOMATIC TUNING
Two automatic tuning methods are provided in the AACC 2000:
·
A one-shot tuner, which automatically sets up the initial values of the parameters
listed in Table 4-1 on the previous page.
·
Adaptive tuning, which continuously monitors the error from setpoint and modifies
the PID values, if necessary.
One-shot Tuning
The ‘one-shot’ tuner works by switching the output on and off to induce an oscillation in
the measured value. From the amplitude and period of the oscillation, it calculates the
tuning parameter values.
If the process cannot tolerate full heating or cooling being applied during tuning, then the
level of heating or cooling can be restricted by setting the heating and cooling power
limits in the ‘o P’ list. However, the measured value must oscillate to some degree for the
tuner to be able to calculate values.
A One-shot Tune can be performed at any time, but normally it is performed only once
during the initial commissioning of the process. However, if the process under control
subsequently becomes unstable (because its characteristics have changed), you can re-
tune again for the new conditions.
It is best to start tuning with the process at ambient process variable. This allows the
tuner to calculate more accurately the low cutback and high cutback values which restrict
the amount of overshoot, or undershoot.
How to tune
1. Set the setpoint to the value at which you will normally operate the process.
2. In the ‘At u n ’ list, select ‘t u n E’ and set it to ‘o n ’.
3. Press the Page and Scroll buttons together to return to the Home display. The display
will flash ‘t u n E’ to indicate that tuning is in progress.
4. The controller induces an oscillation in the process variable by first turning the
heating on, and then off. The first cycle is not complete until the measured value has
reached the required setpoint.
5. After two cycles of oscillation the tuning is completed and the tuner switches itself
off.
6. The controller then calculates the tuning parameters listed in Table 4-1 and resumes
normal control action.
If you want ‘Proportional only’, ‘PD’, or ‘PI’ control, you should set the ‘t i ’ or ‘t d ’
parameters to OFF before commencing the tuning cycle. The tuner will leave them off
and will not calculate a value for them.
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Typical automatic tuning cycle
Process Variable
Setpoint
Time
Calculation of the cutback values
Low cutback and High cutback are values that restrict the amount of overshoot, or
undershoot, that occurs during large step changes in process variable (for example, under
start-up conditions).
If either low cutback, or high cutback, is set to ‘Au t o ’ the values are fixed at three times
the proportional band, and are not changed during automatic tuning.
Adaptive tune
Adaptive tuning is a background algorithm, which continuously monitors the error from
setpoint and analyses the control response during process disturbances. If the algorithm
recognises an oscillatory, or under-damped, response it recalculates the Pb , t i and t d
values.
Adaptive tune is triggered whenever the error from setpoint exceeds a trigger level. This
trigger level is set in the parameter ‘d r A.t ’, which is found in the Autotune list. The
value is in display units. It is automatically set by the controller, but can also be
manually
re-adjusted.
Adaptive tune should be used with:
1. Processes whose characteristics change as a result of changes in the load, or setpoint.
2. Processes that cannot tolerate the oscillation induced by a One-shot tune.
Adaptive tune should not be used:
1. Where the process is subjected to regular external disturbances that could mislead the
adaptive tuner.
2. On highly interactive multiloop applications. However, moderately interactive loops,
such as multi-zone extruders, should not give a problem.
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MANUAL TUNING
If for any reason automatic tuning gives unsatisfactory results, you can tune the controller
manually. There are a number of standard methods for manual tuning. The one
described here is the Ziegler-Nichols method.
With the process at its normal running process variable:
1. Set the Integral Time ‘t i ’ and the Derivative Time ‘t d ’ to OFF.
2. Set High Cutback and Low Cutback, ‘Hc b ’ and ‘Lc b ’, to ‘Au t o ’.
3. Ignore the fact that the process variable may not settle precisely at the setpoint.
4. If the process variable is stable, reduce the proportional band ‘Pb ’ so that the process
variable just starts to oscillate. If the process variable is already oscillating, increase
the proportional band until it just stops oscillating. Allow enough time between each
adjustment for the loop to stabilise. Make a note of the proportional band value ‘B’
and the period of oscillation ‘T’.
5. Set the Pb, ti, td parameter values according to the calculations given in Table 4-2.
Type of control
Proportional
band ‘Pb’
Integral time
‘ti’
Derivative time
‘td’
Proportional only
P + I control
2xB
OFF
OFF
2.2xB
0.8xT
OFF
P + I + D control
1.7xB
0.5xT
0.12xT
Table 4-2 Tuning values
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Setting the cutback values
The above procedure sets up the parameters for optimum steady state control. If
unacceptable levels of overshoot or undershoot occur during start-up, or for large step
changes in process variable, then manually set the cutback parameters ‘Lc b ’ and ‘Hc b ’.
Proceed as follows:
1. Set the low and high cutback values to three proportional bandwidths (that is to say,
Lcb = Hcb = 3 x Pb).
2. Note the level of overshoot, or undershoot, that occurs for large atmosphere changes
(see the diagrams below).
In example (a) increase ‘Lc b ’ by the overshoot value. In example (b) reduce ‘Lc b ’ by
the undershoot value.
Example (a)
Atmosphere
Setpoint
Overshoot
Example (b)
Atmosphere
Setpoint
Undershoot
Time
Where the atmosphere approaches setpoint from above, you can set ‘Hc b ’ in a similar
manner.
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Integral action and manual reset
In a full three-term controller (that is, a PID controller), the integral term ‘ti’
automatically removes steady state errors from the setpoint. If the controller is set up to
work in two-term mode (that is, PD mode), the integral term will be set to ‘OFF’. Under
these conditions the measured value may not settle precisely at setpoint. When the
integral term is set to ‘OFF’ the parameter manual reset (code ‘r ES’) appears in the
‘Pi d Li St ’ in ‘Fu LL’ level. This parameter represents the value of the power output
that will be delivered when the error is zero. You must set this value manually in order
to remove the steady state error.
Automatic droop compensation (Adc)
The steady state error from the setpoint, which occurs when the integral term is set to
‘OFF’ is sometimes referred to as ‘droop’. ‘Ad c ’ automatically calculates the manual
reset value in order to remove this droop. To use this facility, you must first allow the
process variable to stabilise. Then, in the autotune parameter list, you must set ‘Ad c ’ to
‘o n ’. The controller will then calculate a new value for manual reset, and switch ‘Ad c ’
to ‘OFF’.
‘Ad c ’ can be repeated as often as you require, but between each adjustment you must
allow time for the process variable to stabilise.
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Motorized valve control
The AACC 2000 can be configured for motorised valve control as an alternative to the
standard PID control algorithm. This algorithm is designed specifically for positioning
motorised valves.
These are ordered pre-configured as Model numbers:
·
·
·
·
2000/VC motorised valve controllers
2000/VP motorised valve controllers with a single setpoint programmer
2000/V4 motorised valve controllers storing four setpoint programs.
2000/VM motorised valve controllers storing twenty setpoint programs.
Figure 1-11 in Chapter 1 shows how to connect a motorised valve controller. The control
is performed by delivering open, or close, pulses in response to the control demand
signal.
The motorised valve algorithm can operate in one of three ways:
1. The so-called boundless mode, which does not require a position feedback
potentiometer for control purposes; although one can be connected and used purely to
display the valve’s position.
2. Bounded, (or position), control mode, which requires a feedback potentiometer.
This is closed-loop control determined by the valve’s position.
The desired control mode is selected in the ‘i n s t ’ list in configuration level.
The following parameter list will appear in the navigation diagram shown in Chapter 2, if
your controller is configured for motorised valve control.
Name
Description
Motor list
Values
Max
Min
Default
mt r
Valve travel time in seconds.
This is the time taken for the valve to travel
from its fully closed position to its fully open
position.
t m
0 .1
2 4 0 .0
3 0 .0
Valve inertia time in seconds.
This is the time taken for the valve to stop
moving after the output pulse is switched off.
I n .t
OFF
OFF
2 0 .0
2 0 .0
OFF
OFF
Valve backlash time in seconds.
b Ac .t
This is the minimum on-time required to
reverse the direction of the valve. i.e. the
time to overcome the mechanical backlash.
Output pulse minimum on-time, in seconds.
Valve sensor break strategy.
mp .t
U.b r
Au t o
1 0 0 .0
Au t o
d wn
r ESt , u P, d wn
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COMMISSIONING THE MOTORISED VALVE CONTROLLER
The commissioning procedure is the same for both bounded and boundless control modes,
except in bounded mode you must first calibrate the position feedback potentiometer, as
described in the section below.
Proceed as follows:
1. Measure the time taken for the valve to be raised from its fully closed to its fully
open position and enter this as the value in seconds into the ‘t m’ parameter.
2. Set all the other parameters to the default values shown in Table 4-3.
The controller can then be tuned using any of the automatic, or manual, tuning procedures
described earlier in this chapter. As before, the tuning process, either automatic or
manual, involves setting the values of the parameters in Table 4-1. The only difference
with boundless control is that the derivative term ‘t d ’, although present, will have no
effect.
Adjusting the minimum on-time ‘mp .t ’
The default value of 0.2 seconds is satisfactory for most processes. If, however, after
tuning the process, the valve activity is excessively high, with constant oscillation
between raise and lower pulses, the minimum on-time can be increased.
The minimum on-time determines how accurately the valve can be positioned and
therefore the control accuracy. The shorter the time, the more precise the control.
However, if the time is set too short, process noise will cause an excessively busy valve.
Inertia and backlash settings
The default values are satisfactory for most processes, i.e. ‘OFF’.
Inertia is the time taken for the valve to stop after the output pulse is turned off. If this
causes a control problem, the inertia time needs to be determined and then entered into
the parameter, ‘I n .t ’. The inertia time is subtracted from the raise and lower output
pulse times, so that the valve moves the correct distance for each pulse.
Backlash is the output pulse time required to reverse the direction of the valve, i.e. the
time taken to overcome the mechanical backlash of the linkages. If the backlash is
sufficient to cause a control problem, then the backlash time needs to be determined and
then entered into the parameter, ‘b a c .t ’.
The above two values are not part of the automatic tuning procedure and must be entered
manually.
CALIBRATING THE POSITION FEEDBACK POTENTIOMETER
Before proceeding with the feedback potentiometer calibration, you should ensure, in
configuration level, that module position 2 (2 a ), or 3 (3 a ), has its ‘i d ’ indicating
‘Po t .i ’, (meaning Potentiometer Input). Continue to scroll down the module
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configuration list. ‘f u n c ’ should be set to ‘Vp o s ’, ‘VAL.L’ must be set to ‘0 ’ and
‘VAL.H’ to ‘1 0 0 ’.
Exit from configuration and you are now ready to calibrate the position feedback
potentiometer. Proceed as follows.
1. In Operator level, press the AUTO/MAN button to put the controller in Manual mode.
2. Drive the valve to its fully open position using
.
3. Press
4. Press
5. Press
6. Press
7. Press
until you get to ‘i p - Li s t ’.
to get to ‘PCAL- OFF’.
or
and the upper readout indicates ‘Po t ’.
or to get to ‘Po t - 3 A.Hi ’. (Assuming that the Potentiometer Input
to turn ‘PCAL’ to ‘o n ’.
Module is in module position 3.)
8. Press to go to ‘GO- n o ’.
9. Press or to see ‘GO- YES’, which starts the calibration procedure.
10. Calibration is complete when the display returns to ‘GO- n o ’.
11. Press and together to return directly to the Operator level.
12. The controller should still be in Manual mode.
13. Drive the valve to its fully closed position using
.
14. Press
15. Press
16. Press
17. Press
18. Press
19. Press
20. Press
until you get to ‘i p - Li s t ’.
to get to ‘PCAL- OFF’.
or
and the upper readout indicates ‘Po t ’.
or to get to ‘Po t - 3 A.Lo ’
to go to ‘GO- n o ’.
or to see ‘GO- YES’, which starts the calibration procedure.
to turn ‘PCAL’ to ‘o n ’.
21. Calibration is complete when the display returns to ‘GO- n o ’.
22. Press and together to return directly to the Operator level.
23. Press the AUTO/MAN button to place the controller in AUTO and the calibration of
the position feedback potentiometer is now complete.
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Gain scheduling
Gain scheduling is the automatic transfer of control between one set of PID values and
another. In the case of the AACC 2000 controllers, this is done at a presettable process
value. It is used for the more difficult to control processes which exhibit large changes
in their response time or sensitivity at, for example, high and low process variables, or
when heating or cooling.
The AACC 2000 has two sets of PID values. You can select the active set from either a
digital input, or from a parameter in the PID list, or you can transfer automatically in gain
scheduling mode. The transfer is bumpless and will not disturb the process being
controlled.
To use gain scheduling, follow the steps below:
Step1: Enable in configuration level
Gain scheduling must first be enabled in
Gs c h
Configuration level. Goto the I n s t Co n f list,
select the parameter Gs c h , and set it to YES.
YES
Step 2: Set the transfer point
G.SP
Once gain scheduling has been enabled, the
parameter G.SP will appear at the top of the
3 5 0
Pi d list in Fu LL access level. This sets the
value at which transfer occurs. PID1 will be
active when the process value is below this
setting and PID2 when the process value is
above it. The best point of transfer depends on
the characteristics of the process. Set a value
between the control regions that exhibit the
greatest change
Step 3: Tuning
You must now set up the two sets of PID values. The values can be
manually set, or automatically tuned as described earlier in this chapter.
When tuning automatically you must tune twice, once above the switching
point G.SP and again below the switching point. When tuning, if the
process value is below the transfer point G.SP the calculated values will
automatically be inserted into PID1 set and if the process value is above
G.SP, the calculated values will automatically be inserted into PID2 set.
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CONFIGURATION
This chapter consists of six topics:
·
·
·
·
·
·
SELECTING CONFIGURATION LEVEL
LEAVING CONFIGURATION LEVEL
SELECTING A CONFIGURATION PARAMETER
CHANGING THE PASSWORDS
NAVIGATION DIAGRAM
CONFIGURATION PARAMETER TABLES.
In configuration level you set up the fundamental characteristics of the controller.
These are:
·
·
·
·
·
·
·
·
·
·
·
The type of control (e.g. reverse or direct acting)
The Input type and range
The Setpoint configuration
The Alarms configuration
The Programmer configuration
The Digital input configuration
The Alarm Relay configuration
The Communications configuration
The Modules 1, 2 & 3 configuration
Calibration
The Passwords.
WARNING
Configuration is protected by a password and should only be carried out by a
qualified person, authorised to do so. Incorrect configuration could result in
damage to the process being controlled and/or personal injury. It is the
responsibility of the person commissioning the process to ensure that the
configuration is correct.
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Selecting configuration level
There are two alternative methods of selecting Configuration level:
·
If you have already powered up, then follow the access instructions given in Chapter
3, Access levels.
Alternatively, press
and
together when powering up the controller. This will
take you directly to the ‘Co n F’ password display.
Password entry
When the ‘Co n F’ display appears, you must enter the
Configuration password (which is a number) in order to gain
access to Configuration level.
Enter the password using the
or
buttons.
The configuration password is set to ‘2 ’ when the controller
is shipped from the factory.
Once the correct password has been entered, there is a two
second delay, after which the lower readout will change to
‘PASS’ indicating that access is now unlocked.
Note: A special case exists if the password has been set to
‘0 ’. In this situation, access is permanently unlocked and the
lower readout will always show ‘PASS’.
Press
to enter configuration.
(If an incorrect password has been entered and the controller
is still ‘locked’ then pressing at this point will take you
to the ‘Ex i t ’ display with ‘n o ’ in the lower readout. Simply
press to return to the ‘Co n F’ display.)
You will obtain the first display of configuration.
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LEAVING CONFIGURATION LEVEL
To leave the Configuration level and return to Operator level Press
until the
‘Ex i t ’ display appears.
Alternatively, pressing
and
Use
together will take you directly to the ‘Ex i t ’ display
or to select ‘YES’. After a two-
second delay, the display will blank and revert to
the Home display in Operator level.
SELECTING A CONFIGURATION PARAMETER
The configuration parameters are arranged in lists as shown in the navigation diagram
in
Figure 6.1.
To step through the list headers, press the Page
button.
To step through the parameters within a particular list press the Scroll
When you reach the end of the list you will return to the list header.
button.
button.
You can return directly to the list header at any time by pressing the Page
Parameter names
Each box in the navigation diagram shows the display for a particular parameter. The
upper readout shows the name of the parameter and the lower readout its value. For a
definition of each parameter, see the Configuration Parameter Tables at the end of this
chapter. To change the value of a selected parameter, use the
and
buttons.
The navigation diagram shows all the lists headers and parameters that can, potentially,
be present in the controller. In practice, those actually present will vary according to
the particular configuration choices you make.
Changing the passwords
There are TWO passwords. These are stored in the Password configuration list and can
be selected and changed in the same manner as any other configuration parameter.
The password names are:
‘ACC.P’ which protects access to Full level and Edit level
‘c n F.P’ which protects access to Configuration level.
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NAVIGATION DIAGRAM (PART A)
Instrument
Process
Input Config
List
Setpoint
Config
Alarms
Config
Value List
List
PU
SP
AL
i n ST
i P
Co n F
Co n F
Co n F
Li St
Co n F
u n i T
n SP
AL1
2 r Fn
i n PT
°C
2
FSH
CAr B
h t c
Fwd .t
n o n e
r mTr
LTc h
CTr L
CJ C
d Ec .p
OFF
o n
Pi d
Au t o
n n n n
Sb r T
SB.OP
m.Tr
b Lo c
TYPE
i mP
r n GL
OFF
o n
c t r L
Au t o
0
FOP
n o
r mPU
AL2
Ac T
r n GH
PSEc
FSH
REU
2 0 0 0
b c d
n o n E
r mT
LTc h
c o o l
n o n E
o n
LI N
GSc h
n o
b Lo c
Ti Td
o n
SEc
AL3
d t YP
FSH
PU
LTc h
m- A
o n
D1 SA
b Lo c
r - h
o n
ENAB
Pwr F
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Logic
Config
Alarms
Config
Comms1
Config
Comms2
Config
Module1
Config
LAb
AA
Ha
J A
1 A
Co n F
Co n F
Co n F
Co n F
Co n F
i d
i d
i d
i d
i d
AL4
Lo G
RELY
CMS
NONE
d Cr E
FSH
Fu n c
Fu n c
Fu n c
Fu n c
LTc h
Ma n
n o r
OP1
o n
SEn S
b Au d
Ua L.L
b Lo c
n o r
9 6 0 0
0
o n
I FSH
Pr TY
UALH
y e s
n o n E
1 0 0
2 FSL
r ES
u n i T
n o
Fu LL
mA
AL3
d ELY
Ou TL
n o
n o
4 .0
AL4
Ou TH
n o
2 0 .0
Plus
Event
Outputs
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Module2
Config
Module3
Config
Module4
Config
Module
Config
Module
Config
Module
Config
2 A
3 A
4 A
4 C
5 A
5 C
Co n F
Co n F
Co n F
Co n F
Co n F
Co n F
i d
i d
i d
i d
i d
i d
d Cr E
d Cr E
r ELY
r ELY
r ELY
r ELY
Fu n c
Fu n c
Fu n c
Fu n c
Fu n c
Fu n c
OP2
H- CO
DI G
DI G
DI G
DI G
Ua L.L
i n PT
SEn S
SEn S
SEn S
SEn S
0
Hr 1 n
i n u
i n u
n o r
n o r
UALH
i mP
1 FSH
1 FSH
1 FSH
1 FSH
1 0 0
o f f
YES
n o
n o
n o
u n i T
i n PL
2 FSL
2 FSL
2 FSL
2 FSL
mA
0 .0
n o
YES
n o
n o
Ou TL
i n PH
AL3
AL3
AL3
AL3
4 .0
2 .0
n o
n o
n o
n o
Ou TH
UALL
AL4
AL4
AL4
AL4
2 0 .0
0
n o
n o
n o
n o
UALH
i mp
i mp
2 0 0 0
Ye s
Ye s
b u r n
b u r n
y e s
y e s
UEr i
UEr i
n o
n o
PFLT
PFLT
n o
n o
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Module
Config
Custom
Config
Calibration
Config
Password
Config
Exit
6 A
CUST
CAL
PASS
Ex i t
Co n F
Co n F
Co n F
Co n F
i d
i n 1
c AL
ACCP
c n FP
r ELY
0 .0
n o n E
Fu n c
UAL1
UCAL
PMV
0 .0
NO
i n PT
i n 2
Pt 1 L
Pt 1 H
Hi Ln
1 .0
i mP
UAL2
Au t o
2 0 0 .0
i n PL
i n 3
OF1 L
- 0 .2
2 .0
0 .0
i n PH
UAL.3
OF1 H
1 .8
3 5 0 .0
0 .0
UALL
Pt 2 L
Pt 2 H
- 2 0 0
UALH
1 8 0 0
i n 8
7 .0
OF2 L
0 .0
UAL.8
8 0 0 .0
OF2 H
0 .0
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CONFIGURATION PARAMETER TABLES
Name
Description
Values
Meaning
Instrument configuration
i n S t
Instrument Function
% Carbon
Zr Fn
Ca r b
Control type
PID control
On/off control
Boundless motorised valve
control - no feedback
required
Ct r L
Pi d
On .OF
VP
Bounded motorised valve
VP b
control - feedback required
Instrument USE
Control action
Type of cooling
Controller
Monitor
Reverse acting
Direct acting
Linear
t YPE
Ac t
c t r L
Mo n
r Ev
d i r
Li n
o i L
Co o L
Oil (50mS minimum on-
time)
Water (non-linear)
Fan (0.5S minimum on-
time)
H2 O
FAn
Proportional only to error
On/off cooling
Pr o P
o n .OF
Integral & derivative
time units
Seconds, OFF to 9999
Minutes, OFF to 999.9
Enabled
Disabled
Enabled
Disabled
On
Off
t i .t d
m- A
SEc
mi n
En Ab
d i SA
En Ab
d i SA
o n
Front panel Auto/Man button
Front panel Run/Hold button
Power feedback
r - h
Pwr F
Fwd .t
OFF
Feed forward type
None
n o n e
FEEd
SP.FF
PV.FF
Normal feed forward
Setpoint feed forward
PV feed forward
Sensor break output
Forced manual output
Go to pre-set value
Freeze output
Bumpless Auto/Manual
transfer
Sb r .t
FOP
Sb .OP
Ho Ld
n o
Returns to the Manual
value that was set when
last in Manual mode
Steps to forced output
level. Value set in ‘FOP’ of
‘o p - Li s t ’ in Operator
Level
t r a c
St e p
BCD input function
Not used
Select program number
Select setpoint number
b c d
n o n e
p r o g
s p
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Gain schedule enable
Disabled
Enabled
g s c h
n o
y e s
Process value config
Inststrument units
p V
u n i t
0 C
Celsius
Farenheit
Kelvin
0 F
0 k
Decimal places in the
displayed value
Display units blanked
None
One
Two
d e c .p
n o n e
n n n n
n n n .n
n n .n n
Range low
Range high
Low range limit. Also setpoint limit for
alarms and programmers
High range limit. Also setpoint limit for
alarms and programmers
r n g .l
r n g .h
Name
i P
i n Pt
Description
Input configuration
Input type
Values Meaning
J thermocouple
J .t c
k .t c
L.t c
r .t c
b .t c
n .t c
t .t c
S.t c
PL 2
C.t c
K thermocouple
L thermocouple
R thermocouple (Pt/Pt13%Rh)
B thermocouple (Pt30%Rh/Pt6%Rh)
N thermocouple
T thermocouple
S thermocouple (Pt/Pt10%Rh)
PL 2 thermocouple
Custom downloaded t/c (default = type
C)
100W platinum resistance thermometer
Linear millivolt
r t d
mV
Linear voltage
Linear milliamps
v o Lt
mA
Square root volts
Square root milliamps
Sr V
Sr A
mV.C
* see “ CUST” List.
8-point millivolt custom linearisation*
8-point Voltage custom linearisation*
8-point milliamp custom linearisation*
V.C
mA.C
Name
CJ C
Description
Cold Junction
Compensation
Values Meaning
Automatic internal compensation
Au t o
0 o C
0oC external reference
45oC external reference
50oC external reference
No cold junction compensation
4 5 o C
5 0 o C
OFF
Sensor Break Impedance
Disabled (only with linear inputs)
Factory set
Impedance of input > 5KW
Impedance of input > 15KW
i mp
Of f
Au t o
Hi
Hi .Hi
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Linear Input Scaling - The next 4 parameters only appear if a linear or sq rt input is chosen.
Displayed Value
Input value low
i n p .L
i n p .H
VAL.L
VAL.H
VAL.
H
Input value high
Displayed reading low
Displayed reading high
VAL.
L
Electrical
Input
i nP.L
i nP.H
Name Description
Values Meaning
Setpoint configuration
S P
Number of setpoints
Remote Tracking
Select number of setpoints available
n SP
r m.t r
2 , 4 , 1 6
OFF
Disable
Local setpoint tracks remote setpoint
Disable
t r Ac
OFF
Manual Track
m.t r
Local setpoint tracks PV when in
manual
t r Ac
Setpoint rate limit units
Per second
r mP.U
PSEc
Pmi n
PHr
Per minute
Per hour
Remote setpoint configuration
Disable
r mt
n o n E
SP
Remote setpoint
Remote setpoint + local trim
Remote trim + local setpoint
Lo c .t
r mt .t
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Alarm configuration
Values
AL
The controller contains four ‘soft’ alarms, which are configured in this list. Once configured,
they can be attached to a physical output as described in the alarm relay configuration list,
‘AA Co n f ’.
see Table A
Alarm 1 Type
Latching
AL1
Lt c h
n o /YES/Ev n t /mAn *
n o /YES
Blocking
b Lo c
AL2
see Table A
Alarm 2 Type
Latching
Lt c h
n o /YES/Ev n t /mAn *
n o /YES
Blocking
b Lo c
AL3
see Table A
Alarm 3 Type
Latching
Lt c h
n o /YES/Ev n t /mAn *
n o /YES
Blocking
b Lo c
AL4
see Table A
Alarm 4 Type
Latching
Lt c h
n o /YES/Ev n t /mAn *
Blocking (not if ‘AL4 ’ = ‘r At ’)
b Lo c
n o /YES
Table A - Alarm types
Value Alarm type
No alarm
OFF
FSL
FSH
d Ev
d Hi
d Lo
LCr
HCr
FL2
FH2
LOP
HOP
LSP
HSP
r At
PV Full scale low
PV Full scale high
PV Deviation band
PV Deviation high
PV Deviation low
Load Current low
Load Current high
Input 2 Full Scale low
Input 2 Full Scale high
Working Output low
Working Output high
Working Setpoint low
Working Setpoint high
PV Rate of change
AL4 only
Alarm Modes
‘n o ’ means that the alarm will be non-latching.
‘YES’ means that the alarm will be latched, with automatic resetting. Automatic resetting means that if a
reset is actioned before the alarm has cleared, then it will automatically reset when it clears
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Name Description
Values
Meaning
Digital input 1 configuration
Action on contact closure
Logic input
LA
i d
Identity
Lo G.i
n o n E
mAn
r mt
SP.2
Pi d .2
t i H
t u n E
d r A
Ac .AL
Ac c S
Lo c .b
u P
Function of input
The function is active
when the input has a contact
closure to the common
terminal - LC
No function
Fu n c
Manual mode select
Remote setpoint select
Setpoint 2 select
PID set 2 select
Integral hold
One-shot self-tune enable
Adaptive tune enable
Acknowledge alarms
Select Full access level
Keylock
Simulate pressing of the
button
d wn
Simulate pressing of the
button
Sc r L
PAGE
Simulate pressing of the
button
Simulate pressing of the
button
These BCD inputs are used to
select either a program number
or the setpoint number
Least significant BCD digit
2nd BCD digit
3rd BCD digit
b c d .1
b c d .2
b c d .3
b c d .4
according to the setting of the
4th BCD digit
5th BCD digit
parameter ‘b c d ’ in the ‘i n St ’ b c d .5
configuration list
Most significant BCD digit
Standby - ALL control outputs
turned OFF (alarm Outputs are
not affected)
b c d .6
St b y
PV Select:
PV.SL
Closed = PV1 / Open = PV2
Initiate Impedance test
I MP
Lb
Digital input 2 configuration
Action on contact closure
As per Digital input 1 configuration
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Name Description
Values
Meaning
Alarm relay configuration
AA
Identity
Relay output
No function
Digital output
i d
r ELy
Function
Fu n c
n o n E
d I G
n o r
Digital output sense
Normal (output energises when
SEn S
TRUE, e.g. program events)
Inverted (output de-energises
i n v
when TRUE, e.g. alarms)
The following digital events appear after ‘SEn S’. Any one, or more, of the events can be
combined on to the output (see Fig. 6-2) by selecting ‘YES’ in the lower readout.
Alarm 1 active
Alarm 2 active
1 - - -
2 - - -
YES / n o (- - - ) = alarm type (e.g. FSL).
If an alarm has not been
YES / n o
configured
Alarm 3 active
3 - - -
YES / n o in ‘AL Co n F’ list, then display
will
Alarm 4 active
4 - - -
mAn
YES / n o differ:- e.g. Alarm 1 = ‘AL 1 ’.
Controller in manual mode
Sensor break
YES / n o
YES / n o
YES / n o
YES / n o
YES / n o
YES / n o
YES / n o
Sb r
PV out of range
Loop break
SPAn
Lb r
Load failure alarm
Tuning in progress
Ld .F
t u n E
d c .F
Voltage output open circuit, or mA
output open circuit
module connection open circuit
Input 1 Failure
r mt .F
i P1 .F
I MP
YES / n o
Impedance test in progress
Probe burn off in progress
Probe verification in progress
Verification Fault
b u r n
VERi
VFLT
PFLT
n w.AL
En d
Probe Fault
New Alarm has occurred
YES / n o
End of setpoint rate limit, or end of
program
YES / n o
Program Synchronisation active
SYn c
YES / n o
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Digital Events
n o r
d I G
OR
SEnS
Output
Module
i n v
Figure 6-2 Combining several digital events on to one output
Name Description
Values Meaning
Comms 1 module config
HA
Identity of the module installed
2-wire EIA-485
i d
c mS
For ‘i d ’ = ‘c ms ’ (Digital communications) use this parameter table:
Function
Modbus protocol
Fu n c
mo d
mAr
Marathon Monitors protocol
Baud Rate
b Au d
d ELy
1 2 0 0 , 2 4 0 0 , 4 8 0 0 , 9 6 0 0 ,
1 9 .2 0 (19,200)
Delay - quiet period, required by
No delay
n o
some comms
adaptors
Delay active - 10mS
YES
Comms Parity
No parity
Pr t y
n o n E
Ev En
Od d
Even parity
Odd parity
The following parameters only appear if the function chosen is Modbus protocol.
Comms Resolution
Full resolution
r ES
Fu LL
I n t
Integer resolution
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module config
J A
NO configuration required
Name
Description
Values Meaning
1 A/b /C(1)
Module 1 configuration
Identity of module installed
Module not fitted
Relay output
Non-isolated DC output
Logic/ output
Logic input
i d
n o n E
r ELy
d C.OP
Lo G
Lo G.i
SSr
(1) If a dual-, or triple-, channel
module is installed then the list
headers 1 b and 1 C also appear
Triac output
DC retransmission
(isolated)
d c .r E
Isolated DC output
d c .OP
For ‘i d ’ = ‘r ELy ’, ‘Lo G’, or ‘SSr ’ use this parameter table:
Function
Function disabled
Digital output function
Heating output
Fu n c
n o n E
d I G
(Only Channels 1 A and 1 C can be HEAt
Heating, or Cooling)
Cooling output
COOL
Open motorised valve
Close motorised valve
mode 1 heating
u p
d wn
(Only if ‘i d ’ = ‘Lo G’) SSr .1
mode 2 heating
(Only if ‘i d ’ = ‘Lo G’) SSr .2
Displayed Value
VAL.L
VAL.H
% PID demand signal
giving minimum output -
‘Ou t .L’
VAL.H
% PID demand signal
giving maximum output -
‘Ou t .H’
Retransmitted
VAL.L
Output
0%
100%
Ou t .L
Ou t .H
SEn S
Minimum average power
Maximum average power
Sense of output
(Only if ‘Fu n c ’ = ‘d I G’)
Normal (output energises
when TRUE, e.g
n o r
program events)
Inverted (output de-
energises when TRUE,
e.g. alarms)
i n v
Notes:
1. When ‘SEn S’ appears, then further parameters are available.
These are identical to those in the ‘AA Co n F’ list on Page 6-12.
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2. To invert a PID output, the Val. H can be set below the Val.L
Name
Description
Values Meaning
For ‘i d ’ = ‘d C.OP’, ‘d c .r E’, or ‘d c .OP’ use this parameter table:
Function
Function disabled
Fu n c
n o n E
HEAt
COOL
PV
Heating output
Cooling output
Retransmission of PV
Retransmission of setpoint
Retransmission of error signal
Retransmission of OP power
wSP
Er r
OP
%PID, or Retransmission Value
VAL.H
% PID, or Retrans’n Value,
giving minimum output
VAL.L
VAL.H
% PID, or Retrans’n Value,
giving maximum output
Electrical
Output
u n i t
v o Lt = Volts, mA = milliamps
Minimum electrical output
Maximum electrical output
VAL.L
Out.L
Ou t .L
Ou t .H
Out.H
For ‘i d ’ = ‘Lo G.i ’ (i.e logic input) use the LA Co n f ’ list on Page 6-11.
Module 2 configuration
2 A/b /C
As per module 1 configuration, but excluding the ‘SSr .1 ’, ‘SSr .2 ’ functions.
Identity of module installed.
As per module 2 plus:
i d
Transmitter power
supply
Potentiometer input
t PSU
Po t .i
Continued on next page
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For ‘i d ’ = ‘Po t .i (i.e. potentiometer input module) use this parameter
table:
Function
Function disabled
Remote Setpoint
Fu n c
n o n E
r SP
Feedforward input
Fwd .i
r OP.h
r OP.L
VPo S
Remote OP power max.
Remote OP power min.
Motorised valve position
Displayed value low
equivalent to 0%
Displayed Value
potentiometer position
VAL.H
VAL.L
VAL.H
Displayed value high
equivalent to 100%
potentiometer position
VAL.L
Electrical
Input
i nP.L
i nP.H
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3 A/b /C
Module 3 configuration
As per module 2 configuration, plus ‘i d ’ = ‘d C.i P’
For ‘i d ’ = ‘d C.i P’ use this parameter table.
THIS INCLUDES THE SECOND PV FUNCTIONS
Function
Function disabled
Remote Setpoint
Fu n c
n o n E
r SP
Fwd .i
r OP.h
r OP.L
Hi
Feedforward input
Remote OP power max.
Remote OP power min.
PV = The highest of i P.1 , or i P.2
PV = The lowest of i P.1 , or i P.2
Derived function, where
PV = (f .1 x i P1 ) + (f .2 x i P2 ).
Lo
Ft n
‘F.1 ’ and ‘F.2 ’ are scalars which are
found in ‘i p - Li s t ’ of Operator Level
Select i p .1 , or i p .2 via Comms, front
SEL
panel buttons, or a digital input
Transition of control between i p .1
and i p .2 . The transition region is set
by the values of ‘Lo .I p ’ and ‘Hi .I p ’,
which are found in ‘i p - Li s t ’ of
Operator Level. PV = i p .1 below
‘Lo .I p ’
t r An
PV = i p .2 above ‘Hi .I p ’
Input type
i n p t
CJ C
Refer to ‘i p Co n f ’ for all types, + the following:
High Impedance (range = 0 to 2 volt)
Hi I n
Cold Junction
Compensation
No cold junction compensation
Automatic internal compensation
0oC external reference
OFF
Au t o
0 o C
4 5 o C
5 0 o C
45oC external reference
50oC external reference
Sensor Break Impedance
Disabled (only with linear inputs)
Factory set
Impedance of input > 15KW
Impedance of input > 30KW
i mp
Of f
Au t o
Hi
Hi .Hi
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Linear Input Scaling - The next four parameters only appear if a linear input is chosen.
Displayed value
Input value low
i n P.L
i n P.H
VAL.L
VAL.H
Input value high
Displayed value low
Potentiometer
position
VAL.L
Displayed value high
VAL.H
0%
100%
Name
Description
Values Meaning
4
A /C
Module configuration
As per module AA configuration
5
A /C
Module configuration
As per module AA configuration
Name Description
Values
Meaning
Module configuration
Identity of module DC input
Function
6 A
DC input
i d
r ELy
n o n E
Hi I n
Pin v probe mv input
Fu n c
i n PT
Input type
High Impedance (range = 0 to 2 volt)
Displayed Value
Input value low
i n P.L
i n P.H
VAL.L
VAL.H
VAL.H
Input value high
Displayed value low
Displayed value high
VAL.L
i nP.L
Electrical
Input
i nP.H
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8-point Custom Linearisation (1)
Cu s t
i n
1
Custom input 1
Displayed Value
Linearisation Value representing
VAL.1
VAL.8
i n 1
i n
8
VAL.3
VAL.1
Custom input 8
Electrical
Input
Linearisation Value representing
i n 8
VAL.8
i n 1
i n 3
i n 8
Note:
1. Custom Linearisation is only available when ‘3 a - Co n f ’or i P- Co n F list
has ‘i n p t ’ set to ‘mV.C’, or ‘mA.C’, or ‘V.C’.
1. The values and inputs must be continuously increasing or decreasing
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Name
Description
Values Meaning
Calibration
CAL
In this mode you can
1. Calibrate the instrument using a mV source - r c AL or ref source cal.
2. Offset the calibration to account for errors in actual sensor
measurement and a ref sensor - UCAL or user calibration
3. Return to factory set calibration - FACT or factory set calibration.
Goto User
calibration
table-See also
chapter 7
Calibration
point
No calibration
r c AL
n o n E
Calibrate main Process Value input.
Calibrate DC input, or PV 2.
PV
Go to input
Calibation table
PV.2
Calibrate DC output high - Module 1
Calibrate DC output low - Module 1
Calibrate DC output high - Module 2
Calibrate DC output low - Module 2
Calibrate DC output high - Module 3
Calibrate DC output low - Module 3
1 A.Hi
1 A.Lo
2 A.Hi
2 A.Lo
3 A.Hi
3 A.Lo
Go to
DC Output
Calibration
table
INPUT CALIBRATION
For ‘CAL’ = ‘PV’, or ‘PV.2 ’, the following parameters apply.
PV Calibration Value
Idle
PV
I d LE
mv .L
Select 0mV as the calibration
point
Select 50mV as the calibration
point
mv .H
V 0
Select 0Volt as the calibration
point
1. Select calibration value
2. Apply specified input
Select 10V as the calibration
point
V 1 0
Select 0oC CJC calibration point
CJ C
r t d
Select 400W as the calibration
point
3. Press
to step to ‘GO’
High impedance: 0Volt cal’n
point
HI 0
High impedance: 1.0 Volt cal’n
point
HI 1 .0
Restore factory calibration
Waiting to calibrate PV point
See Note below.
FACt
n o
Start calibration
GO
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Start calibration
YES
Select ‘YES’ with
Wait for calibration to
complete.
or
Busy calibrating
b u Sy
d o n E
FAI L
PV input calibration completed
Calibration failed
Note. When a DC input module is installed for the first time, or there is a requirement to change one,
then the microprocessor in the controller needs to read the factory calibration data stored in the module.
Select ‘FACt ’ as the calibration value. Step to ‘GO’ and start calibration.
DC Output Calibration
The following parameters apply to DC output modules ie for r c AL = 1 A.Hi to 3 A.Lo
Output Calibration High
c AL.H
0
0 = Factory set calibration.
Trim value until output = 9V, or
18mA
Output Calibration Low
c AL.L
0
0 = Factory set calibration.
Trim value until output = 1V, or
2mA
User calibration
UCAL
User calibration enable
Yes/no
Low calibration point for Input 1
The factory calibration point at which the
low point offset was performed.
p t 1 .L
High calibration point for Input 1
The factory calibration point at which the
high point offset was performed.
p t 1 .H
Offset Low for Input 1
Calculated offset, in display units.
Calculated offset, in display units.
OF1 .L
OF1 .H
p t 2 .L
Offset High for Input 1
Low calibration point for Input 2
The factory calibration point at which the
low point offset was performed.
High calibration point for Input 2
The factory calibration point at which the
high point offset was performed.
p t 2 .H
Offset Low for Input 2
Offset High for Input 2
Calculated offset, in display units.
Calculated offset, in display units.
OF2 .L
OF2 .H
Name
Description
Values Meaning
Password configuration
FuLL or Edit level password
Configuration level password
P AS S
ACC.P
c n F.P
Exit configuration
Ex i t
n o /YES
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User calibration
This chapter has five topics:
·
·
·
·
·
WHAT IS THE PURPOSE OF USER CALIBRATION?
USER CALIBRATION ENABLE
OFFSET CALIBRATION
TWO POINT CALIBRATION
CALIBRATION POINTS AND CALIBRATION OFFSETS
To understand how to select and change parameters in this chapter you will need to have
read Chapter 2 - Operation, Chapter 3- Access Levels and Chapter 6 - Configuration.
WHAT IS THE PURPOSE OF USER CALIBRATION?
The basic calibration of the controller is highly stable and set for life. User calibration
allows you to offset the ‘permanent’ factory calibration to either:
1. Calibrate the controller to the your reference standards.
2. Match the calibration of the controller to that of a particular transducer or sensor
input.
3. Calibrate the controller to suit the characteristics of a particular installation.
4. Remove long term drift in the factory set calibration.
User calibration works by introducing a single point, or two-point, offset
onto the factory set calibration.
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User Calibration Enable
The User calibration facility must first be enabled in configuration level by setting the
parameter ‘UCAL' in the input conf list to 'YES'. This will make the User calibration
parameters visible in Operator ‘Fu LL’ level.
Select configuration level as shown in Chapter 5, Configuration.
The Calibration Configuration List
Press
until you reach the ‘CAL- Co n f ’ list.
Press
until you reach ‘UCAL’.
User Calibration Enable
Use
or
YES: Calibration enable
n o : Calibration disabled
to select:
·
·
Press
and
together to go to the Ex i t
display.
+
Exit configuration
Use
or
to select ‘YES’ to return to Operator
level.
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Offset calibration
Offset calibration is used to apply a single fixed offset over the full display range of the
controller.
Displayed Value
Factory Calibration
Fixed Offset
Input
To calibrate, proceed as follows:
1. Connect the input of the controller to the source device to which you wish to calibrate.
2. Set the source to the desired calibration value.
3. The controller will display the current measurement of the value.
4. If the displayed value is correct, then the controller is correctly calibrated and no
further action is necessary. If it is incorrect, then follow the steps shown below.
Select ‘Fu LL’ access level, as described in Chapter 3.
Input list header
Press
until you reach the input list header.
x 3
Press
until you reach the ‘CAL’ display.
Calibration type
·
·
FACt :
Factory Calibration
User Calibration
USEr :
Use
or
to select ‘FACt ’.
Selecting ‘FACt ’ reinstates the factory
calibration and allows the application of a single
fixed offset.
Press
continued on the next page
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Set Offset 1
Use
or
to set the offset value of Process
Value 1 (PV1).
The offset value is in display units Press
Set Offset 2
Use
or
to set the offset value of
Process Value 2 (PV2), if configured.
The offset value is in display units.
Press
The table below shows the parameters which
appear after ‘OFS.2 ’. These are all read only
values and are for information. Press
through them.
to step
IP1 measured value (at terminals)
mV.1
mV.2
IP2 measured value (at terminals), if DC
input in Module 3 position
See table on
the right for
additional
IP1 Cold Junction Compensation
IP2 Cold Junction Compensation
IP1 Linearised Value
CJ C.1
CJ C.2
Li .1
IP2 Linearised Value
Li .2
parameters.
Shows the currently selected input
PV.SL
If you do not want to look at these parameters,
then press
and this returns you to the ‘i P-
Li St ’ header.
To protect the calibration against unauthorised
adjustment, return to Operator level and make
sure that the calibration parameters are hidden.
Parameters are hidden using the ‘Edit’ facility
described in Chapter 3, Access Levels
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Two-point calibration
The previous section described how to apply a offset, or trim, calibration, which applies a
fixed offset over the full display range of the controller. A two-point calibration is used
to calibrate the controller at two points and applies a straight line between them. Any
readings above, or below, the two calibration points will be an extension of this straight
line. For this reason it is best to calibrate with the two points as far apart as possible.
Offset introduced
Displayed Value
User Calibration
Factory Calibration
Calibration high-point value
High-point calibration
Low-point calibration
Calibration low-point value
Offset introduced
Proceed as follows:
1. Decide upon the low and high points at which you wish to calibrate.
2. Perform a two point calibration in the manner described below
Input list header
Press
until you reach the input list header, ‘i p Li St ’.
Press
until you reach the ‘CAL’ display.
Calibration type
x 3
·
·
FACt :
Factory Calibration
User Calibration
USEr :
Use
or
to select ‘USEr ’.
Selecting ‘USEr ’ enables two-point calibration.
[If two-point calibration is unsatisfactory, select ‘FACt ’ to
return to the factory set calibration.]
Press
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Select Low-point Calibration
This is the Calibration Status display. This display shows
that no input is selected for calibration.
·
·
n o n E:
i p 1 .L:
selected
i p 1 .H:
selected
i p 2 .L:
selected
i p 2 .H:
selected
No selection
Input 1 (PV1) calibration low-point
·
·
·
Input 1 (PV1) calibration high-point
Input 2 (PV2) calibration low-point
Input 2 (PV2) calibration high-point
Use
/
to select the parameter for the Low Calibration
point of Input 1, ‘i p 1 .L’.
Press
Adjust low-point calibration
This is the display for adjusting the Low Calibration point of
Input 1. The lower readout is a live reading of the process
value, which changes as the input changes.
Make sure that the calibration source is connected to the
terminals of Input 1, switched on and feeding a signal to the
controller. It should be set to the desired low-point
calibration value. If the lower readout does not show this
value, then use
value.
/
to adjust the reading to the required
Press
to return to the ‘i p - Li s t ’ header.
To perform the High-point Calibration, repeat the above
procedure, selecting ‘i p 1 .H’ in the ‘CAL.S’ display for
adjustment.
Press
three times.
Calibration type
‘USEr ’ was selected for the Low-point Calibration, and has
remained selected.
Press
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Select High-point Calibration
This is the Calibration Status display, again.
Use
/
to select the parameter for the High-point
Calibration of Input 1, ‘i p 1 .H’.
Press
Adjust High-point Calibration
This is the display for adjusting the High Calibration point of
Input 1. The lower readout is a live reading of the process
value, which changes as the input changes.
Feed the desired high-point calibration signal to the
controller, from the calibration source. If the lower readout
does not show this value, then use
reading to the required value.
/
to adjust the
Press
to return to the ‘i p - Li s t ’ header.
To protect the calibration against unauthorised adjustment
return to Operator level and make sure that the calibration
parameters are hidden. Parameters are hidden using the
‘Ed i t ’ facility described in Chapter 3.
To perform a User Calibration on Input 2, proceed as with
Input 1 above, except that when ‘CAL.S- n o n E’ appears,
press
/
until ‘CAL.S- i P2 .L’ is obtained, then
proceed as with Input 1. Repeat the procedure for ‘i P2 .H’
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Calibration points and Calibration offsets
If you wish to see the points at which the User calibration was performed and the
value of the offsets introduced, then these are shown in Configuration, in ‘CAL-
Co n f ’.
The parameters are:
Name
Parameter description
Meaning
Low calibration point for Input 1
The factory calibration point at which the
low point offset was performed.
p t 1 .L
High calibration point for Input 1
The factory calibration point at which the
high point offset was performed.
p t 1 .H
Offset Low for Input 1
Calculated offset, in display units.
Calculated offset, in display units.
OF1 .L
OF1 .H
p t 2 .L
Offset High for Input 1
Low calibration point for Input 2
The factory calibration point at which the
low point offset was performed.
High calibration point for Input 2
The factory calibration point at which the
high point offset was performed.
p t 2 .H
Offset Low for Input 2
Offset High for Input 2
Calculated offset, in display units.
Calculated offset, in display units.
OF2 .L
OF2 .H
Note:
The value of each of the parameters in the above table may
buttons.
also be altered by using the
/
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Parameter Table (Default)
Home list
Process Variable
Target Setpoint
Output power
OP
Auto/Manual Mode
Reference Number
M-a
rEF
Probe List
Process Factor
PF
Milivolt Offset
OFFS
H-CO Compensation
Probe Temperature
Probe Millivolts
Auxilliary Input
H-CO
Ptc
Pmv
Axin
Care List
Care
CArE
prt.r
tmin
VrF.r
Pti
imPH
Ptrt
bot
Measured Recovery Time
Temperature Minimum
Verification Test Result
Probe Test Interval
Maximum Impedance
Probe Test Recovery Time
Burn Off Time
Burn Off Recovery Time
Final Delay
Time Of Average 2
Probe Impedance Result
bort
FdE
tA2
imp.r
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User List
Number 1
n1
Number 2
Number 3
Number 4
Number 5
Number 6
Number 7
Number 8
Number 9
Number 10
Number 11
Number 12
Number 13
Number 14
Number 15
n2
n3
n4
n5
n6
n7
n8
n9
n10
n11
n12
n13
n14
n15
Alarm List
Alarm 1 Setpoint
Alarm 2 Setpoint
Alarm 3 Setpoint
Alarm 4 Setpoint
Alarm 1 Hysteresis
Alarm 2 Hysteresis
Alarm 3 Hysteresis
Alarm 4 Hysteresis
Loop Break Time
1---
2---
3---
4---
HY1
HY2
HY3
HY4
Lbt
Enable Diagnostic Messages
diAG
Autotune List
Autotune Enable
Automatic manual Reset Calculation
tunE
Adc
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PID List
Gain Scheduler Setpoint
Current PID Set
G.SP
Set
Proportional Band PID1
Intergal Time PID1
Derivative Time PID1
Manual Reset
Pb
ti
td
rES
Cutback High
Hcb
Cutback Low PID1
Lcb
Relative Cool Gain PID1
Proportional Band PID2
Intergal Time PID2
Derivative Time PID2
Manual Reset PID2
Cutback High PID2
Cutback Low PID2
Relative Cool Gain PID2
FeedForward Proportional Band
FeedForward Trim Limit
rEL.C
Pb2
ti2
td2
rES2
Hcb2
Lcb2
rEL2
FF.Pb
FF.du
Motor List
Valve Travel Time
tm
Valve Inertia Time
Int
Valve Backlash Time
Minimum On Time
Valve Sensor Break Strategy
bAct
MP.t
U.br
Setpoint List
Setpoint Select
SSEL
Setpoint 1
SP1
Setpoint 2
Sp2
Setpoint 1 Low Limit
Setpoint 1 High Limit
Setpoint 2 Low Limit
Setpoint 2 High Limit
Local Setpoint trim
SPL
SPH
SP2L
SP2H
Hbty
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Input List
Filter 1
Filter 2
Filter 3
FiLt
FLt2
FLT3
CAL
CJC
Calibration
CJC Temperature
Output List
Low Power Limit
High Power Limit
Output Rate Limit
OP.Lo
OP.Hi
Oprr
Forced Output Power
Cycle time OP1
Hysteresis OP1
OP1 Minimum On Time
Cycle time OP2
Hysteresis OP1
FOP
CYC.1
hYS.1
ont.1
CYC.2
hYS.2
ont.2
OP2 Minimum On time
Deadband
db
Sensor Break Output Power
Sb.OP
Addr
Comms List
Comms Address
Info List
Custom Display Type
SPC Minimum PV
SPC Maximum PV
SPC Mean PV
SPC Time above TIME Trigger
PV Threshold for Timer Log
SPC Reset
diSP
LoG.L
Log.H
LoG.A
LoG.t
LoG
rES
Control task execution
time high water mark
Working Output
Feedforward Output
Proportional Output
Intergral Output
mCt
w.OP
FF.OP
Pop
IOP
Derivative Output
dOP
Continued on next page…..
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Configuration Mode Parameters
Inst Conf
Function: O2, %C, Dewpoint, Redox
Zr.Fn
tYPE
Control Type
Instrument type: Monitor/Controller
Control Action
CtrL
Act
Control Time Units
Manual Key Enable
dtYP
Feedforward Type
Bumpless PD Control
Sensor Break Action
Forced Manual Availability
BCD Input Function
Gain Scheduling
ti.td
m-A
dtYP
Fwd.t
Pd.tr
Sbr.t
FOP
bcd
Gsch
PV Conf
Instrument Units
Display Resolution
Exponent
unit
dEc.P
ExP
Setpoint Minimum
Setpoint maximum
rnG.L
rnG.H
IP Conf
Linearisation type
CJC Type
Sensor break Impedance
inPt
CJC
imP
SP Conf
Number of Setpoints
Remote Tracking Configuration
manual track Configuration
SRL rate units
nSP
rm.tr
m.tr
rmP.U
Remote Setpoint Configuration
Continued on next page…..
rmt
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Alarm Conf
Alarm 1 Type
AL1
Ltch
bLoc
AL2
Ltch
bLoc
AL3
Ltch
bLoc
AL4
Ltch
bLoc
Alarm 1 Latch
Alarm 1 Block
Alarm 2 Type
Alarm 2 Latch
Alarm 2 Block
Alarm 3 Type
Alarm 3 Latch
Alarm 3 Block
Alarm 4 Type
Alarm 4 Latch
Alarm 4 Block
LA/B Conf
Logic Input A Ident
id
Logic Input A Slot Function
Logic Input B Ident
Func
id
Logic Input B Slot Function
Func
Module AA Conf
Fixed Module AA Ident
Fixed Module AA Slot Function
Summary OP AA invert
Summary OP AA Conf
id
Func
Sens
Module H Conf
Interface Module H Ident
Interface Module H Slot Function
Baud Rate
id
Func
bAud
Comms Parity
Prty
Comms Resolution
Comms Delay
rES
dELY
Module 1A Conf
Module 1A Ident
id
Module 1A Slot Function
Module 1A Low Value
Module 1A High Value
Output 1A units
Func
VAL.L
VAL.H
unit
Module 1A Low Output Range
Module 1A High Output Range
Continued on next page…..
Out.L
Out.H
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Module 2A Conf
Module 2A Ident
id
Module 2A Slot Function
Module 2A Low Value
Module 2A High Value
Output 2A units
Func
VAL.L
VAL.H
unit
Module 2A Low Output Range
Module 2A High Output Range
Out.L
Out.H
Module 3A Conf
Module 3A Ident
id
Module 3A Slot Function
Module 3A Input Type
Func
inPt
Module 3A Sensor break Impedance
Module 3A Input Value Low
Module 3A Input Value High
Module 3A Displayed Value Low
Module 3A Displayed Value High
iMP
inP.L
inP.H
VAL.L
VAL.H
Module 4A Conf
Module 4A Ident
id
Module 4A Slot Function
Summary OP 4A Invert
Summary OP 4A configuration
Func
SEnS
Module 4C Conf
Module 4C Ident
id
Module 4C Slot Function
Summary OP 4C Invert
Summary OP 4C configuration
Func
SEnS
Module 5A Conf
Module 5A Ident
id
Module 5A Slot Function
Summary OP 5A Invert
Summary OP 5A configuration
Func
SEnS
Module 5C Conf
Module 5C Ident
id
Module 5C Slot Function
Summary OP 5C Invert
Summary OP 5C configuration
Continued on next page…..
Func
SEnS
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Module 6A Conf
Module 6A Ident
id
Module 6A Slot Function
Func
Module 6A Input Type
inPt
Module 6A Sensor break Impedance
Module 6A Input Value Low
Module 6A Input Value High
Module 6A Displayed Value Low
Module 6A Displayed Value High
iMP
inP.L
inP.H
VAL.L
VAL.H
CUST Conf
Input 1
Value 1
Input 2
Value 2
Input 3
Value 3
Input 4
Value 4
Input 5
Value 5
Input 6
Value 6
Input 7
Value 7
Input 8
Value 8
in 1
VAL.1
in 2
VAL.2
in 3
VAL.3
in 4
VAL.4
in 5
VAL.5
in 6
VAL.6
in 7
VAL.7
in 8
VAL.8
CAL Conf
PASS Conf
Access Mode User Password
Configuration Mode User Password
Continued on next page…..
ACC.P
cnF.P
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Special Parameters
ABC Constant Transfer
A Constant low 16 bits
A Constant high 16 bits
B Constant low 16 bits
B Constant high 16 bits
C Constant low 16 bits
C Constant high 16 bits
Transfer Location, 0 - 15
Transfer Action; 81=write, 82=read
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INDEX
ACCESS LEVELS .......................................................................................... 46
Adaptive tune.......................................................................................38, 54, 73
Adjust low-point calibration..................................................................... 89
Adjusting the minimum on-time...................................................................... 59
Alarm types..........................................................................................37, 43, 72
Alarms ............................................................................... 22, 25, 43, 62, 65, 66
Automatic mode..................................................................................22, 26, 27
Backlash......................................................................................................... 59
Blocking....................................................................................................43, 72
CALIBRATING THE POSITION FEEDBACK POTENTIOMETER .................................. 59
Changing the passwords.................................................................................. 64
COMMISSIONING THE MOTORISED VALVE CONTROLLER..................................... 59
Comms .................................................................................... 34, 41, 66, 75, 79
Communication..........................................................................8, 19, 30, 41, 62
Configuration level..................................................44, 46, 47, 48, 61, 63, 64, 83
Configuration password........................................................................42, 48, 63
Diagnostic alarms .........................................................................37, 43, 44, 45
Gain scheduling .............................................................................................. 61
Home...................................25, 27, 28, 29, 30, 32, 36, 41, 43, 47, 49, 50, 53, 64
Inertia ............................................................................................................ 59
Inertia and backlash settings............................................................................ 59
Input list header .............................................................................................. 88
Installation ...................................................................................................... 12
Latching....................................................................................................43, 72
Level selection................................................................................................. 48
Manual mode .................................................................... 22, 26, 36, 60, 69, 73
Navigation....................................................................................................... 65
Non-latching................................................................................................... 43
offset calibration.............................................................................................. 86
PARAMETERS............................................................................................... 30
Password entry ...........................................................................................47, 63
Process alarms................................................................................................. 43
Promoting a parameter .................................................................................... 50
SAFETY and EMC INFORMATION................................................................ 4
Select Low-point Calibration.................................................................... 89
SELECTING A CONFIGURATION PARAMETER .................................... 64
Setpoint ....... 17, 24, 25, 27, 29, 30, 33, 36, 37, 40, 62, 65, 69, 71, 72, 73, 78, 79
Snubbers.......................................................................................................... 16
Technical Specification ..................................................................................... 8
TUNING ..............................................................................................52, 53, 55
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Two-point calibration.................................................................................... 88
User calibration............................................................................................... 84
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