Parker IQAN-MC31 User manual

IQAN-MC31
Instruction book
Publ no HY33-8411-IB/UK
Edition 2016-07-05

ii
Contents
Instruction book, IQAN-MC31
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview of relevant documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Read This . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IQAN-MC31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Markings/Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Internal diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CAN-bus interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Current check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Emergency stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting the module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connectors C1-C4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Addressing/terminating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Diagnostic interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reference voltage, VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Voltage inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Frequency inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Proportional outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Connecting loads to proportional outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Low-side digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Diagnostic digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Start-up procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8 System Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Safe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
IQAN-MC31 Technical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Error codes, messages and actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Appendix C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Dimensioning of the IQAN-MC31 module . . . . . . . . . . . . . . . . . . . . . . . . . . 38

1
Warnings
1 Introduction
Instruction book, IQAN
1 Introduction
These instructions are to be used as a reference tool for the vehicle manufacturer’s
design, production, and service personnel.
The user of these instructions should have basic knowledge in the handling of
electronic equipment.
Warnings
Sections marked with a symbol in the left margin, must be read and understood by
everyone using the system, carrying out service work, or making changes to hardware
and software.
The different symbols used in this manual are defined below.
WARNING
Sections labeled WARNING with a caution symbol in the left margin, indicate that a
hazardous situation exists. We use warnings, marked with the warning symbol, in two
ways.
• As a strong recommendation about work practices when using the product in the
machine (e.g. routines when updating an application). This use is common to the
term 'hazardous situation', that a person is exposed to a hazard.
• As a way of pointing out important information for the machine designer that in
some way relates to safety. This includes the design of the physical machine, and
also the application program being developed for the control system.
Not all document sections that contain information about safety are marked with a
warning symbol (there would be warnings everywhere). Failure to comply with the
recommendations can cause unintentional, and unexpected behavior of the control
system. This can potentially cause death, serious injury or property damage.
NOTICE
Sections labeled NOTICE with a notice symbol in the left margin, indicate there is
important information about the product. Ignoring this could result in less than optimal
performance, or damage to the product.
Contact the manufacturer if there is anything you are not sure about or if you have any
questions regarding the product and its handling or maintenance.
The term "manufacturer" refers to Parker Hannifin Corporation.

2
Overview of relevant documentation
1 Introduction
Instruction book, IQAN
Overview of relevant documentation
The following publications are relevant for users of this product.
The main documentation contains information that is not found elsewhere.
The additional documentation contains product information in a compact format, for
details on the information found in those documents, consult this manual.
The IQAN module documentation system.
Compact
Documentation
Main
Documentation
IQANdesign/
IQANrun
User Manuals
IQAN module
Instruction Book
HY33-8nnn-IB
IQAN module
Catalogue Datasheet
HY33-8nnn
IQAN module
Installation Sheet
HY33-8nnn-IS
IQAN module
Electrical Schematic
HY33-8nnn-ES
Mounting and Maintenance
Instruction Book
HY33-8327-IB

3
Read This
2 Precautions
Instruction book, IQAN
2 Precautions
Work on the hydraulics control electronics may only be carried out by trained
personnel who are well-acquainted with the control system, the machine and its safety
regulations.
WARNING
Make sure that you have sufficient knowledge before designing, modifiying or
servicing the control system.
Read the relevant sections of this document before conducting any work on the control
system.
WARNING
This product is not field repairable.
NOTICE
As much as possible of the welding work on the chassis should be done before the
installation of the system. If welding has to be done afterwards, the electrical
connections on the system must be disconnected from other equipment. The negative
cable must always be disconnected from the battery before disconnecting the positive
cable. The ground wire of the welder shall be positioned as close as possible to the
place of the welding. The cables on the welding unit shall never be placed near the
electrical wires of the control system.
Read This
Design of control system
WARNING
Risk of injury may be introduced by design of control system!
This product is designed to control hydraulic outputs. The control application must be
designed using basic safety principles so that unintentional movement is avoided.
The machine must be equipped with an emergency stop that stops all movement. Please
refer to section "Supply voltage".
Before you start
Read this document.
Read the IQANdesign software user manual section on 'application safety'.

4
Read This
2 Precautions
Instruction book, IQAN
Start-up, maintenance, and diagnostics
For all personnel carrying out installation, commissioning, maintenance or
troubleshooting.
WARNING
Work on the hydraulics control electronics may only be carried out by trained
personnel who are well-acquainted with the control system, the machine and its safety
regulations.
Before you start,
Read section "Start-up".
Additional information for service
Mounting and maintenance instruction book.
Additional information for diagnosing the system
Read section "System diagnostics", and see "Appendix B", in this document.
Use the IQANrun software user manual as a reference.

5
IQAN-MC31
3 Product description
Instruction book, IQAN-MC31
3 Product description
IQAN-MC31
The IQAN-MC31 is designed for controlling hydraulic systems in vehicles and
machinery, using 12/24 Vdc power supply.
IQAN-MC31 is a master unit capable of running applications created by IQANdesign.
The MC31 has local I/O for input/output use and has four CAN busses that support ICP
(IQAN CAN Protocol), SAE J1939 and Generic CAN.
By supporting SAE J1939 and Generic CAN the MC31 can act as a sub-master when
there is a need of higher performance in a sub-circuit or when there is an OEM supplied
overall machine master.
This product is designed for the outdoor environment and comes with an IP6K9K
protection for applications where high-pressure water and steam jet cleaning is used.
The IQAN-MC31 module.
IQAN-MC31 origins
The IQAN-MC31 is based on the IQAN-MC3 hardware but it has the safety functions
removed in the operating software. This is done to enable bigger applications and a
faster cycle time.
I/O overview
+BAT
-BAT
ADDR-L
ADDR-H
INPUTS
-VREF
+VREF
OUTPUTS
CAN-H
CAN-L
MC31
Power supply
(and safe path control)
Core
(microcontroller
and
memory)
Signal input
idTag
VIN
DIN
Power driver
COUT
DOUT
CAN

6
IQAN-MC31
3 Product description
Instruction book, IQAN-MC31
Voltage Inputs
The IQAN-MC31 module has sixteen (16) voltage inputs VIN-A thru VIN-P for
connection of 0-5 Vdc signals.
Digital Inputs
The IQAN-MC31 module also has sixteen (16) on/off inputs DIN-A thru DIN-P for
switches. The inputs are multi-purpose and for flexibility may be configured in other
ways. The input pins DIN-A thru DIN-H can be configured as frequency inputs for
measuring frequency. On/off inputs and frequency inputs share positions, see list.
Proportional outputs
The MC31 module has four (4) double proportional outputs for controlling
proportional valves. These outputs can control four bi-directional valve sections or four
single solenoid devices (ie. proportional cartridge valves). The proportional outputs can
be used in two different modes. Either Current mode (current closed loop) or PWM
mode (voltage open loop) signals can be selected and the parameters configured using
IQAN software. See below.
In order to increase the performance of the proportional outputs when controlling
proportional valves, the dither frequency can be adjusted.
Digital outputs
The MC31 module has ten (10) digital outputs for driving on-off solenoids. There are
five (5) high side outputs and five (5) low side outputs. See below.
These outputs can be combined to provide five (5) diagnostic capable configurations.
See below.
(16) Voltage inputs VIN-A thru VIN-P
(16) Digital inputs DIN-A thru DIN-P
or
(8) Frequency inputs FIN-A thru FIN-H use positions DIN-A thru DIN-H.
and
(8) Digital inputs DIN-I thru DIN-P.
(4) double proportional outputs COUT-A thru COUT-D
or
(4) double proportional outputs PWMOUT-A thru PWMOUT-D
(5) High side digital outputs DOUT-F thru DOUT-J
and
(5) Low side digital outputs DOUT-K thru DOUT-O
(5) Diagnostic digital outputs DOUT-A (HS + LS) thru DOUT-E (HS + LS)

7
IQAN-MC31
3 Product description
Instruction book, IQAN-MC31
CAN related functions
The IQAN-MC31 uses a CAN-bus (CAN = Controller Area Network) to communicate
with IQAN expansion modules and other systems. The CAN-bus is a robust
communication protocol that is widely used and well proven within the automotive
industry.
The unit has four (4) CAN buses, CAN-A thru CAN-D. The buses may be configured
using IQAN software to be ICP (ICP = IQAN CAN Protocol), SAE J1939 or Generic
user defined CAN protocol (e.g. CANopen).
Communication
The communication interfaces are used for uploading/downloading applications or
diagnostics and typically are connected to a computer.
CAN
The IQAN-MC31 has 4 CAN buses. Either of the CAN buses may be used for
communication and diagnostics. A CAN communication card is required to be installed
in your PC to use this feature.

8
Markings/Approvals
3 Product description
Instruction book, IQAN-MC31
Markings/Approvals

9
Internal diagnostics
4 Safety
Instruction book, IQAN
4 Safety
Internal diagnostics
The module performs a number of self-checks that improve safety. Checks include
monitoring of voltage supplies, checksums on memory and a watchdog that monitors
software execution. The module is using a real time operating system which supervises
software execution.
If a critical error is detected, the module is stopped, with CAN-bus and outputs off.
CAN-bus interruption
The IQAN modules communicate on a CAN-bus. Both the master module and
expansion modules check for any interruptions in CAN-bus communication. If an error
occurs the master will use zero or an application defined error value for the module
inputs, and the module outputs will be off.
The error will be presented on the master/display module, if there is one, and with a
related blink code on the IQAN module status LEDs.
Current check
For modules with proportional outputs, when used in current mode a current check is
performed. If an error is detected, this will be indicated on the master module, and the
output will shut off.
The module can detect open-circuit, short-circuit to +BAT/-BAT or short-circuit to
other proportional output and return pins.
Emergency stop
WARNING
Risk of injury!
The emergency stop must disconnect the power supply to the module; do not connect
the emergency stop as a signal input only.
The emergency stop must be installed so that the risk of reverse feed of the module is
avoided, see section "Supply voltage".

10
Mounting the module
5 Mounting
Instruction book, IQAN
5 Mounting
Mounting the module
The IQAN-MC31 module should be mounted according to the following instructions:
• Locate the module eliminating the risk for the cabling to be folded, crushed or dam-
aged in any way. Ensure the cabling cannot pull, twist or induce sideload on the con-
nector.
• Locate the module so that severe physical impact is avoided, e.g impact from falling
objects or the module being used as a step.
• Locate the module so that air can circulate to eliminate excess heat. Ensure that no
external heat, e.g. from the engine or heater, is transferred to the module.
• Locate the module to protect it from high pressure washing or similar.
• For maximum cooling, mount the module on a vertical surface.
• Locate the module so that the LEDs are visible.
Recommended placing.
NOTICE
The IQAN-MC31 module must not be placed in any marine related or similar
continuously damp, salt-spray environment without external protection.

11
Connectors C1-C4
6 Installation
Instruction book, IQAN-MC31
6 Installation
Connectors C1-C4
Connector C1 pin assignments
Connector kit Parker no. 5035016a
a.Kit contains parts for all 4 connectors, C1 - C4
Housing Deutsch no. DT16-18SAK004
Pin types 1062-16-0644
Cables 0.75 mm² (18 AWG)
Plugs (empty pos.) Deutsch no. 114017
Deutsch crimping
tool reference
DTT-20-00
Prototype cable Parker no. 5030216
Symbol Pin
No.
In
Out
Function
-BAT 1 - Power supply GND
-BAT 2 - Power supply GND
CAN-A-L 3 - CAN low voltage bus line, will be LOW in dominant state.
CAN-A-H 4 - CAN high voltage bus line, will be HIGH in dominant state.
CAN-B-L 5 - CAN low voltage bus line, will be LOW in dominant state.
CAN-B-H 6 - CAN high voltage bus line, will be HIGH in dominant state.
ADDR-L 7 - IdTag interface. Low side to address tag. Return signal.
ADDR-H 8 - IdTag interface. High side to address tag. Sourcing +5V.
CAN-C-L 9 - CAN low voltage bus line, will be LOW in dominant state.
CAN-C-H 10 - CAN high voltage bus line, will be HIGH in dominant state.
CAN-D-L 11 - CAN low voltage bus line, will be LOW in dominant state.
CAN-D-H 12 - CAN high voltage bus line, will be HIGH in dominant state.
+BAT 13 - Power supply 12/24 Vdc
+BAT 14 - Power supply 12/24 Vdc
DOUT-I 15 O DOUT power driver, high side
DOUT-N 16 O DOUT power driver, low side
DOUT-J 17 O DOUT power driver, high side
DOUT-O 18 O DOUT power driver, low side
6
12
18
1
7
13
A

12
Connectors C1-C4
6 Installation
Instruction book, IQAN-MC31
Connector C2 pin assignments
Connector kit Parker no. 5035016a
a.Kit contains parts for all 4 connectors, C1 - C4
Housing Deutsch no. DT16-18SBK004
Pin types 1062-16-0644
Cables 0.75 mm² (18 AWG)
Plugs (empty pos.) Deutsch no. 114017
Deutsch crimping
tool reference
DT-20-00
Prototype cable Parker no. 5030217
Symbol Pin
No.
In
Out
Function
-VREF-A 1 - Voltage reference for external sensors. Return (0V)
+VREF-A 2 - Voltage reference for external sensors. Sourcing +5V
VIN-A 3 I Voltage signal input
VIN-B 4 I Voltage signal input
VIN-C 5 I Voltage signal input
VIN-D 6 I Voltage signal input
VIN-E 7 I Voltage signal input
VIN-F 8 I Voltage signal input
VIN-G 9 I Voltage signal input
VIN-H 10 I Voltage signal input
VIN-I 11 I Voltage signal input
VIN-J 12 I Voltage signal input
VIN-K 13 I Voltage signal input
VIN-L 14 I Voltage signal input
VIN-M 15 I Voltage signal input
VIN-N 16 I Voltage signal input
VIN-O 17 I Voltage signal input
VIN-P 18 I Voltage signal input
6
12
18
1
7
13
B

13
Connectors C1-C4
6 Installation
Instruction book, IQAN-MC31
Connector C3 pin assignments
Connector kit Parker no. 5035016a
a.Kit contains parts for all 4 connectors, C1 - C4
Housing Deutsch no. DT16-18SCK004
Pin types 1062-16-0644
Cables 0.75 mm² (18 AWG)
Plugs (empty pos.) Deutsch no. 114017
Deutsch crimping
tool reference
DT-20-00
Prototype cable Parker no. 5030218
Symbol Pin
No.
In
Out
Function
-VREF-B 1 - Voltage reference for external sensors. Return (0V)
+VREF-B 2 - Voltage reference for external sensors. Sourcing +5V
DIN-A 3 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-B 4 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-C 5 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-D 6 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-E 7 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-F 8 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-G 9 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-H 10 I DIN / FIN / DFIN / PCN /DPCN signal input
DIN-I 11 I Digital signal input
DIN-J 12 I Digital signal input
DIN-K 13 I Digital signal input
DIN-L 14 I Digital signal input
DIN-M 15 I Digital signal input
DIN-N 16 I Digital signal input
DIN-O 17 I Digital signal input
DIN-P 18 I Digital signal input
6
12
18
1
7
13
C

14
Connectors C1-C4
6 Installation
Instruction book, IQAN-MC31
Connector C4 pin assignments
Connector kit Parker no. 5035016a
a.Kit contains parts for all 4 connectors, C1 - C4
Housing Deutsch no. DT16-18SDK004
Pin types 1062-16-0644
Cables 0.75 mm² (18 AWG)
Plugs (empty pos.) Deutsch no. 114017
Deutsch crimping
tool reference
DT-20-00
Prototype cable Parker no. 5030219
Symbol Pin
No.
In
Out
Function
COUT-A 1 O COUT power driver, high side
CRET-A+ 2 O COUT power driver, low side
CRET-A- 3 O COUT power driver, low side
COUT-B 4 O COUT power driver, high side
CRET-B+ 5 O COUT power driver, low side
CRET-B- 6 O COUT power driver, low side
COUT-C 7 O COUT power driver, high side
CRET-C+ 8 O COUT power driver, low side
CRET-C- 9 O COUT power driver, low side
COUT-D 10 O COUT power driver, high side
CRET-D+ 11 O COUT power driver, low side
CRET-D- 12 O COUT power driver, low side
DOUT-F 13 O DOUT power driver, high side
DOUT-K 14 O DOUT power driver, low side
DOUT-G 15 O DOUT power driver, high side
DOUT-L 16 O DOUT power driver, low side
DOUT-H 17 O DOUT power driver, high side
DOUT-M 18 O DOUT power driver, low side
6
12
18
1
7
13
D

15
Supply voltage
Instruction book, IQAN
Supply voltage
Before any installation of the IQAN system can take place, make sure the ignition lock
is turned off and the battery is disconnected.
Emergency stop
Make sure an Emergency Stop disconnecting the power supply, is easily accessible at
any time. The figure below shows how to connect the emergency stop.
Connecting of Supply Voltage
The supply voltage, should be within the operating interval, see Appendix A. Connect
the supply voltage to +BAT and -BAT. Protect the module by using a fuse. For
recommended fuse level, see Appendix A.
RTC supply
IQAN master modules have a clock that is used for date/time stamping when logging
data. The real time clock, +RTC, requires a separate positive power connection.
Connect the supply voltage to +RTC through a 1.5K ohm resistor. The resistor should
be as close to the battery as possible for safety.
IQAN expansion modules do not have +RTC.
WARNING
Risk of injury!
To reduce the risk for uncontrolled supply of an IQAN master module, i.e., a short
circuit between the +RTC cable and +BAT, a resistor must be connected between the
battery and the +RTC input. This is important as this line is not controlled by an
emergency stop.
The resistor should be placed close to the battery, as the ’protected’ part is the cable
between the resistor and the unit.
This will prevent the +RTC wire from powering up the unit if shorted to +BAT.
Connecting the emergency stop and voltage supply.
NOTICE
Do not use the chassis as the negative terminal.
Polarity reversal
The module is protected against power supply polarity reversal and over-voltage,
provided an external fuse is being used.
If this fuse is not used, polarity reversal can damage the unit.
+-
Emergency Stop
+BAT
Fuse
-BAT
*
* Symbol for disconnecting
switch for battery, ignition
lock and other fuses.
+RTC (if master unit)
IQAN module
1.5 k

16
Addressing/terminating
Instruction book, IQAN- MC31
Addressing/terminating
IQAN-MC31 use of an ID-Tag
In IQANdesign 3.0 and higher software, more than one IQAN master module can be
used together in a multi-master system. The master modules are each given a unique
address by using an ID-Tag. The value of the ID-Tag identifies the master and will
enable a single project application to be loaded into more than one master module over
the CAN bus. The functionality needed for each master is loaded based on the ID-tag
address.
Identification of an IQAN-MC31 by address
For normal operation of an IQAN-MC31 in a single master system, the ID-Tag is still
used. When no ID-Tag is installed the MC31 or if the ADDR pins are jumpered on
power up, the MC31 will start in safe mode.
The connection of an ID-Tag between ADDR-H and ADDR-L will assign an address to
the IQAN-MC31 master module. The desired functionality based on address is built
into the project file using IQANdesign software. For more information, please refer to
the IQANdesign user manual.
It is the combination of address and type that gives each master module a unique
identification. The maximum number of MC31 addresses is 8, denoted as addresses 0,
1, 2, 3, 4, 5, 6, 7 respectively.
In order to assign any IQAN-MC31 an address , an ID-Tag will have to be connected to
the positions ADDR-H and ADDR-L.
Connecting of Id-Tag.
Terminating
To eliminate interference in the communications through the CAN bus, the CAN bus
must be terminated. By default, the MC31 is terminated internally on all of its CAN
buses. When an IQANdesign application is loaded, it can set individual buses to be
non-terminated.
To give an IQAN-MC31 a unique address, you may use an addressing ID-tag, or an ID-
tag having a combined address and terminating function. The ’T’ values of ID-tags are
ignored, i.e. an ID-tag 3T is equivalent to ID-tag 3.
If the module is located at the end of the CAN-bus, then leave the bus default
terminated in the MC31.
NOTICE
The CAN-bus should not be terminated at the MC31 using an external regular
terminating resistor, due to the fact that terminating is made from within the MC31
module by default.
ID-Tag
ADDR-L
ADDR-H
IQAN-MC31

17
Diagnostic interfaces
Instruction book, IQAN
Diagnostic interfaces
IQAN software includes many tools for tuning, measuring, accessing logs and
otherwise checking the performance or troubleshooting your control system. To use the
diagnostic tools with an IQAN master module you may choose between different ways
to connect to the unit.
CAN diagnostics connection
One of the CAN buses of the IQAN master module may be dedicated for diagnostics.
Reserving a bus for diagnostics ensures that signals are not interrupted by other bus
traffic. A high-speed CAN interface is needed to use this feature. Contact Parker for
information about supported CAN interfaces.
A termination resistor is usually required at the CAN interface on the PC. Parker part
number 5030082 or 5030182, or an equivalent 120 ohm resistor may be used. A flying
lead cable may be connected to the IQAN master to provide a connector interface. The
connection from IQAN master module to diagnostic CAN interface can then be made
quite easily. It is recommended that the connector be a sealed, automotive type. When
not being used this connector should be protected from the environment with a cover or
mating blank plug.
The recommended wiring to the IQAN master module connector is shown below.
Connecting for CAN communication.
CAN-X-H
CAN-X-L
IQAN master
120 ohm
Customer
provided
connector

18
Reference voltage, VREF
Instruction book, IQAN
Reference voltage, VREF
The IQAN module is internally equipped with a voltage regulator to generate the
reference voltage VREF. The standard reference voltage will feed different kinds of
sensors and potentiometers.
VREF positions.
NOTICE
It is strongly recommended to use the module’s -VREF and +VREF to all sensors and
potentiometers that are connected to the module inputs. This will reduce bad
measurement based on potential fault (i.e. different ground points for other supplies in
relation to the IQAN module ground, -BAT).
Maximum load for the VREF is different according to 12/24 Vdc power supply, see
"Appendix A".
-VREF
+VREF
IQAN module