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IKD 1 discrete expansion.
Legacy CAN configuration with isolated I/O.
| Parameter | Specification |
|---|---|
| Nominal power supply | 12/24 VDC |
| Supply operating range | 6.0-36.0 VDC |
| Maximum power consumption | 3 W |
| Discrete inputs | 8, galvanically isolated |
| Relay outputs | 8, potential-free |
| Discrete input voltage | 6-32 VDC |
| Input resistance | Approximately 6.8 kΩ |
| Storage temperature | -40 to +85 °C |
| Relative humidity | 95%, non-condensing |
| Relay AC resistive rating | 2 A at 250 VAC |
| Relay DC resistive rating | 2 A at 24 VDC; 0.36 A at 125 VDC; 0.18 A at 250 VDC |
| Relay DC pilot-duty rating | 1 A at 24 VDC; 0.22 A at 125 VDC; 0.10 A at 250 VDC |
| AC pilot-duty class | B300 |
| Relay contact material | AgCdO |
| CAN continuous isolation voltage | 100 VAC |
| CAN isolation test | 1,000 VAC for up to 5 s |
| Service interface signal level | 5 V |
| Screw-plug terminal capacity | 2.5 mm² |
| Recommended tightening torque | 0.5 Nm |
| Connection wire temperature class | 60/75 °C copper |
| Enclosure protection | IP20 |
| CAN line termination | External termination required |
When used with easYgen-3000XT, configure the CAN identifier for this legacy GCP-3x version before commissioning.
Woodward 8440-2028 adds discrete field I/O through the IKD 1 CAN expansion interface. Eight galvanically isolated inputs are paired with eight potential-free relay outputs. Its nominal 12/24 VDC supply operates across the specified 6-36 VDC range. Input states are sent to the main controller, which determines the required relay commands. This version originated with the legacy GCP-3x control line, making CAN identification particularly relevant to later controller installations. The application configuration must establish how each added field signal is interpreted and used.
The discrete inputs extend the controller application with field-state information from connected switching circuits.
CAN carries the expansion-board states to the main control, where the configured application evaluates them.
Output messages from the controller operate the assigned dry-contact relays on the IKD 1 board.
Connection to an easYgen-3000XT application requires the appropriate CAN identifier configuration for this legacy version. Check addressing before placing the board into service.
Bring additional contact inputs and relay duties into a controller project that supports the IKD 1 message exchange.
When the host control changes, reconcile the expansion-board address and the application signal assignments instead of assuming the original settings still apply.
The physical input/output resources explain what the board can connect. Its CAN identity and host configuration determine whether those resources are recognized by the intended controller.
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