Parker IQAN-MD4 User manual

IQAN-MD4
Instruction book
Publ no HY33-8408-IB/UK
Edition 2016-10-26

ii
Contents
Instruction book, IQAN-MD4
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview of relevant documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Read This . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Design of control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Start-up, maintenance, and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IQAN-MD4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Voltage inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CAN related functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
HMI (human machine interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Internal diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CAN-bus interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Current check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Emergency stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting the module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Dashboard or panel assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ball or tilt/swivel mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connector C1 and C2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connector C1 pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connector C2 pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connector C3 and C4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Emergency stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting of Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Polarity reversal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
IQAN-MD4 use of an ID-Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Identification of an IQAN-MD4 by address . . . . . . . . . . . . . . . . . . . . . . 16
Diagnostic interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CAN diagnostics connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Ethernet diagnostics communication . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Video input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Analog Cameras . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Reference voltage, VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Voltage inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Connecting sensors to the voltage inputs . . . . . . . . . . . . . . . . . . . . . . . 21

iii
Contents
Instruction book, IQAN-MD4
Connecting a 2-wire temperature sensor to voltage in . . . . . . . . . . . . . 22
Connecting switches to the voltage inputs using VREF . . . . . . . . . . . . 22
Connecting switches to the voltage inputs using +BAT . . . . . . . . . . . . 23
Directional pulse count input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Connecting a directional pulse count channel (DPCNT) . . . . . . . . . . . . 24
Low-side digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Start-up procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Starting the control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Prepare for system start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Start the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
IQAN-MD4 Technical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Appendix B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Error messages and actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Failure Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Failure modes for CAN interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Failure modes for VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Failure modes for VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Failure modes for DIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Dimensioning of the IQAN-MD4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Dimensioning of the IQAN-MD4-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Dimensioning of the IQAN-MD4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Dimensioning of the IQAN-MD4 bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

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
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-MD4
3 Product description
Instruction book, IQAN-MD4
3 Product description
IQAN-MD4
The IQAN-MD4 is a family of combined display and bus master modules capable of
running applications created by IQANdesign software. Built on a 32-bit platform the
units have large computational power and is capable of controlling large applications.
The IQAN-MD4 module.
System overview
The master module, IQAN-MD4, is the central unit in the system, or in the case of a
multi-master system, one of the central units. IQAN-MD4 has four CAN buses and two
ethernet ports. The CAN buses support ICP and are able to control IQAN expansion
units. SAE J1939 and Generic CAN protocols are also supported on the CAN buses
and gives the possibility to interface to 3rd party units.
A touch screen in combination with a graphical display makes system feedback with
user interaction possible. The display in the module has very high optical performance
across a wide operating temperature range and over a wide range of ambient light.
IQAN-MD4 has voltage and digital inputs that are designed to be flexibly configured
using IQANdesign software. The unit also has four low side digital outputs. All I/O are
EMI filtered and protected against short circuit to -BAT and +BAT.
A typical IQAN-MD4 System
Levers IQAN-MD4
Expansion units

6
I/O
3 Product description
Instruction book, IQAN-MD4
I/O
Voltage inputs
The IQAN-MD4 module has two (2) voltage inputs VIN-A andVIN-B for
connection of 0-5 Vdc signals. These inputs can be configured as digital inputs for
reading switches. Voltage inputs and digital inputs share positions, see below.
Digital inputs
The IQAN-MD4 module has eight (8) digital inputs DIN-A thru DIN-H. DIN-A thru
DIN-D are multi purpose and can be configured as low-side on/off outputs. DIN-G and
DIN-H are multi purpose and can be configured as a directional pulse count input. see
below.
(2) Voltage inputs VIN-A and VIN-B
or
(2) Digital inputs DIN-I and DIN-J
(8) Digital inputs DIN-A thru DIN-H
or
(4) Digital inputs DIN-E thru DIN-H, (4) Digital outputs DOUT-A thru DOUT-D
or
(6) Digital inputs DIN-A thru DIN-F, (1) Directional pulse count input DPCNT
+BAT CAN-H
CAN-L
PORT 1
-BAT
+VREF
ETHERNET
PORT 0
CAN-H
CAN-L
+RTC
MD4 CAN-H
CAN-L
CAN-H
CAN-L

7
Communication
3 Product description
Instruction book, IQAN-MD4
Communication
The communication interfaces are used for uploading/downloading applications,
connecting to expansion modules, connecting to cameras or diagnostics.
CAN related functions
The IQAN-MD4 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 MD4 has up to four (4) CAN buses depending on model, CAN-A to CAN-D. The
CAN buses may be configured in IQANdesign to be used for IQAN expansion
modules, IQAN diagnostic and multi-master traffic, SAE J1939 modules (e.g. for
engine and transmission), or as Generic bus for user defined CAN protocol (suitable
also for CANopen).
IQAN diagnostics bus
The IQAN diagnostics bus is used for communication between master units in a multi-
master system, and also as a gateway to an IQAN-G11 or to a connected PC (requires
compatible USB to CAN adapter).
In the IQAN-MD4, the CAN channels are paired in groups of 2. There is CAN-A and
CAN-B, where the CAN controllers are in the main processor, compared to CAN-C
and CAN-D, that are controlled by the co-processor.
NOTICE
On the IQAN-MD4, the buses CAN-C and CAN-D have a lower throughput rate for
bursts of CAN traffic.
It is recommended to use CAN port A or B for diagnostics on the MD4 module,
especially in multi-master systems.
Ethernet
The MD4 has up to two Ethernet communication ports depending on configuration,
Port A (C3) and Port B (C4).
Port A is used for uploading/downloading applications and diagnostics and is
designated for computer communication. see Ethernet diagnostics communication for
more information.
Port B is used for in-vehicle network over Ethernet, for example communicating with
camera or other masters. see Video input for more information on how to use cameras.
HMI (human machine interface)
Display
Touch function
The IQAN-MD4 display has a capacitive touch screen (PCAP touch screen) enabling
the user to control the display with the use of fingers, passive stylus, thin gloves or
thicker gloves with conductive material in the finger tips. The touch sensor is protected
from wear behind a glass surface.

8
HMI (human machine interface)
3 Product description
Instruction book, IQAN-MD4
Landscape and Portrait mode, Polarization
The MD4 software supports both landscape (default) and portrait mode orientation.
The MD4-7 (7") screen has polarizers, and the display component is defined as
landscape mode display. In an application where the MD4-7 is used in portrait mode,
and when wearing polarized sunglasses, the effect is that the screen can be unreadable
due to the conflicting polarizations. This is easily solved by applying a film to the
display. One type of film that is proven to work is NuShield DayVue anti-reflective
overlay film.
The MD4-5 and MD4-10 screens do not have polarizers.
Scratch resistance
In order to maximize the life cycle of the optical performance of the display, the glass
surface does not have any anti-reflection treatment. Such surface treatments have a
tendency to mechanically wear down over time and would give a worn out appearance
of the display and a reduced optical performance.
Maintenance
Reasonable care should be taken to maintain the glass.
The display can be cleaned with an LCD cleaning solution found in many stores. Use a
lightly dampened lint-free, non-abrasive cloth when cleaning the display.
NOTICE
To avoid scratches, do not wipe or clean a dry display.
Water
IQAN-MD4 is a hardened module suitable for both in-cab and outdoor use.
The display will not be damaged by water, but the touch sensor has been tuned to
reduce the risk of unintentional activation of buttons from water drops. The touch
interface can have limited functionality if an excessive amount of water droplets
remain on the screen. If the MD4 display is placed in exposed locations where water
spray can hit the display, additional splash protection could be used.
NOTICE
It is recommended to place the display in a vertical position so that water droplets that
hit the display roll off the display glass.
Brightness
The brightness is easily adjusted by pressing the 'menu' touch button and following the
prompts to the backlight settings section. The backlight is automatically dimmed at
supply voltage <14V.
Image persistance
The IQAN-MD4 TFT LCD, like all other LCD screens, can show image persistence,
also known as image sticking, if the same pattern is left on the display for extended
periods of time.
NOTICE
To avoid the possibility of image sticking in applications where the display is rarely
powered down, a screen saver that alters the display image could be used.

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, see Appendix B.
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-MD4
5 Mounting
Mounting the module
The IQAN module should be mounted according to the following instructions:
Dashboard or panel assembly
When installing in a dash or panel the recommended panel thickness is 1.0 - 3.5 mm.
Use M4 screws to attach the supplied steel clips..
Panel mounting the IQAN-MD4
Ball or tilt/swivel mount
The option to use ball mounting or tilt swivel mounting for MD4-7 or MD4-5 display
position flexibility is made possible by using Parker’s steel bracket. Use the provided
M4 screws to attach the bracket to the display The bracket will accept Southco or
RAM™ mounts.
Adjustable mounting the IQAN-MD4
• The part number for the MD4-7 bracket kit is 20077778.
• The part number for the MD4-5 bracket kit is 20077779.
See ’Appendix C’ for RAM™ and Southco mounting pattern dimensions.
The IQAN-MD4-10 does not require a bracket. It has a VESA 75 mounting pattern on
the back surface which will also accept RAM™ mounts.

11
Mounting the module
5 Mounting
Instruction book, IQAN-MD4
Mounting considerations
NOTICE
IQAN-MD4 shall be positioned in the machine per the following instructions:
• The unit is designed for outdoor use. Position the unit in desired location and make
sure that it is not exposed to mechanical damage.
• The connectors on the reverse side of the unit should be accessible.
• Position the unit so there is no risk that the cabling can be folded, crushed, worn or
damaged in any way.
• Leave sufficient room behind the unit to insert connectors. Less than 75 mm
clearance will stress the cabling and distort the seals in the connectors. This can
cause the environmental specification not to be met.
Distance behind the unit.
NOTICE
• Position the unit so there is no risk to be exposed to external heat, e.g. from the
engine or heater.
• The best readability will be achieved by positioning the front face of the unit
directly towards the operator.
• Extended periods of exposure to direct sunlight can cause an internal temperature
exceeding 90°C which may cause permanent degradation of the LCD display.
NOTICE
All of the connectors, C1 to C4, must be properly installed in the unit.
• If you leave a connector unplugged, the unit will not be sealed.
• If unused wire positions in a connector are not closed with the recommended plugs,
the unit will not be sealed.
75 mm
48 5,5

12
Connector C1 and C2
6 Installation
Instruction book, IQAN-MD4
6 Installation
Connector C1 and C2
NOTICE
No pin may be "double crimped". That means only one wire may be attached to any
given pin. Failure to follow this instruction will cause the module to not meet the
environmental specification.
Make "Y" connections or splices using weatherproof methods external to the IQAN-
MD4 connectors.
Connector kit Parker 20073081 C1 (DTM12 key A)
Housing C1 Deutsch no. DTM06-12SA
Pin type Deutsch no. 1062-20-0222
Wedge type Deutsch no. WM12S
Sealing plug Deutsch no. 0413-204-2005
C2 (DTM12 key B)
Housing C2 Deutsch no. DTM06-12SB
Pin type Deutsch no. 1062-20-0222
Wedge type Deutsch no. WM12S
Sealing plug Deutsch no. 0413-204-2005
Recommended
cable
0.75-1 mm² (18 AWG)
5
4
3
2
1
12 11 10 987
6
11 10 987
6
54
32
1
12
+BAT CAN-H
CAN-L
PORT 1
-BAT
+VREF
ETHERNET
PORT 0
CAN-H
CAN-L
+RTC
MD4 CAN-H
CAN-L
CAN-H
CAN-L

13
Connector C1 and C2
6 Installation
Instruction book, IQAN-MD4
Connector C1 pin assignments
Connector C2 pin assignments
*Use -BAT on C1 as -VREF. Make the connection as close to the C1 connector as possible to minimise voltage fluctuation.
Pin No. Symbol Function
C1:1 -BAT Power supply
C1:2 CANL-A CAN low voltage bus line
C1:3 CANL-B CAN low voltage bus line
C1:4 CANL-C CAN low voltage bus line
C1:5 CANL-D CAN low voltage bus line
C1:6 ADDR-L Low side to address tag. Return (0V)
C1:7 ADDR-H High side to address tag. Sourcing +5V
C1:8 CANH-D CAN high voltage bus line
C1:9 CANH-C CAN high voltage bus line
C1:10 CANH-B CAN high voltage bus line
C1:11 CANH-A CAN high voltage bus line
C1:12 +BAT Power supply
Pin No. Function Alt. Function
C2:1 VIN-A DIN-I
C2:2 VIN-B DIN-J
C2:3 DIN-A DOUT-A
C2:4 DIN-B DOUT-B
C2:5 DIN-C DOUT-C
C2:6 DIN-D DOUT-D
C2:7 DIN-E
C2:8 DIN-F
C2:9 DIN-G +DPCNT-A
C2:10 DIN-H -DPCNT-A
C2:11 +VREF*
C2:12 +RTC

14
Connector C1 and C2
6 Installation
Instruction book, IQAN-MD4
Connector C3 and C4
Connector C3 and C4 pin assignments
Connector kit Parker N/A M12 4pin D-code Industrial
Ethernet
Recommended PC cable
Sealed panel adapter cable
20077780
20077785
Pin No. Symbol Function
C3/4:1 TD+ Transmit data +
C3/4:2 RD+ Receive data +
C3/4:3 TD- Transmit data -
C3/4:4 RD- Receive data -
C3/4:Shield Shield Shield

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
Instruction book, IQAN-MD4
Addressing
IQAN-MD4 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-MD4 by address
For normal operation of an IQAN-MD4 in a single master system, the ID-Tag is still
used. When no ID-Tag is installed, the MD4 will start in safe mode.
The connection of an ID-Tag between ADDR-H and ADDR-L will assign an address to
the IQAN-MD4 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 module type that gives
each master module a unique identification.
Connecting of ID-Tag.
NOTICE
When no ID-Tag is installed, the MD4 will start in safe mode.
ID-Tag
ADDR-L
ADDR-H
IQAN-MD4

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