Woodward IKD1M 8 DI/8 DO Expansion Card 8440-2116

Product number: 8440-2116

Manufacturer product number: 8440-2116

Description: Woodward: Control-IKD1M, Digital I/O Expansion Board

The IKD 1 is an external digital expansion card that can be used alternatively with an upper level control unit

(e. g. GCP) or an PLC. The IKD 1 can read the status of 8 discrete inputs and transmit these via the CAN bus to

the higher level control unit. In the opposite direction the higher level control unit can control the 8 relay outputs

situated on the IKD 1 via the CAN bus.

Type designation of the IKD 1 as follows:

Examples:

IKD1M (standard unit for DIN-rail/rear panel mounting)

IKD1S (standard unit for vibration absorber mounting)

All electronic equipment is static-sensitive, some components more than others. To protect these components

from static damage, you must take special precautions to minimize or eliminate electrostatic discharges.

Follow these precautions when working with or near the control.

1. Before doing maintenance on the electronic control, discharge the static electricity on your body to ground by

touching and holding a grounded metal object (pipes, cabinets, equipment, etc.).

2. Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic materials.

Wear cotton or cotton-blend materials as much as possible because these do not store static electric charges

as much as synthetics.

3. Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam cups, cup holders, cigarette pack

ages, cellophane wrappers, vinyl books or folders, plastic bottles, and plastic ash trays) away from the con

trol, the modules, and the work area as much as possible.

4. Do not remove the printed circuit board (PCB) from the control cabinet unless absolutely necessary. If you

must remove the PCB from the control cabinet, follow these precautions:

Ensure that the device is completely de-energized (all connectors must be disconnected).

Do not touch any part of the PCB except the edges.

Do not touch the electrical conductors, the connectors, or the components with conductive devices or

with your hands.

When replacing a PCB, keep the new PCB in the plastic antistatic protective bag it comes in until you

are ready to install it. Immediately after removing the old PCB from the control cabinet, place it in

the antistatic protective bag.

Possible CAN Bus Problems

If no data is transmitted on the CAN bus, check the following for common CAN bus communication problems:

T structure bus is utilized

CAN-L and CAN-H are interchanged

Not all devices on the bus are using identical Baud rates

Terminating resistor are missing

Baud rate to high for wiring length

The CAN bus cable is co-routed with power cables

Woodward recommends the use of twisted-pair cables for the CAN bus (i.e.: Lappkabel Unitronic LIYCY (TP)

2×2×0.25. UNITRONIC-Bus LD 2×2×0.22).

Maximum CAN bus Length

The maximum length of the communication bus wiring is dependent on the configured Baud rate. Refer to the fol

lowing table for the maximum bus length (Source: CANopen; Holger Zeltwanger (Hrsg.); 2001 VDE VERLAG

GMBH, Berlin und Offenbach; ISBN 3-8007-2448-0).

The IKD 1 is a external expansion board with totally

8 discrete inputs as well as

8 relay outputs.

This in- and outputs can be alternatively controlled from

a higher level control unit (e.g. GCP, easYgen) or

a PLC.

Therefore different parameters are available that have to be adjusted in dependence of the application. The IKD 1

is to be used dependent on the definition alternatively at

the Engine CAN bus (coupling via a higher level control unit, e.g. GCP) or directly at

the Guidance CAN bus (coupling to a PLC).

Following main functions apply dependent on the use.