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IKD 1 relay expansion.
Controller-assigned switching through CAN.
| 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 | -30 to +80 °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 |
Match the legacy IKD 1 CAN settings and controller application before replacement; an identical connector layout does not establish configured compatibility.
In a legacy Woodward IKD 1 installation, 8440-1041 provides the additional switching interface used by the controller application. The board offers eight discrete inputs and eight relay channels with potential-free contacts. Maximum intrinsic consumption is 3 W, and the CAN interface is galvanically isolated. The main controller evaluates the incoming states rather than delegating the entire control sequence to the expansion board. Relay loading must be selected for the actual AC or DC duty of the external circuit. Preserving the established network and signal assignments is an essential part of replacing this older expansion version.
The dry-contact outputs switch external circuits within their applicable resistive or pilot-duty ratings.
The control application determines which input states and output functions belong to each expansion channel.
An isolated communication path links the board to the control; the network requires its specified external termination.
Record the existing channel assignments and CAN settings before removing the board. The replacement should be commissioned against those application records, including the external relay loads.
Use the exact board identity together with the original wiring and control project when replacing an established expansion assembly.
Review voltage, load type and switching duty for the external circuit rather than using a single current limit for every relay application.
The board supplies the added electrical interfaces while the main controller defines their behavior. Keeping that separation clear helps preserve the original machine or genset sequence.
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A Malaysia customer needed a specific automation component and compared products and services from several suppliers online. After nearly three weeks of careful consideration, our sincere communication, professional service, and reliable product quality won the customer's trust. After receiving the product and using it for several weeks without any problems, the customer gave us positive feedback and subsequently placed multiple orders.
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