Watchdog Repeater Modules | Honeywell 10302/2/1 FSC
Manufacturer: HONEYWELL
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Part Number: 10302/2/1
Condition：New with Original Package
Product Type: Watchdog Modules
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Honeywell 10302/2/1 FSC Watchdog Repeater Module
The Honeywell 10302/2/1, also cataloged as the 10302/2/1 Watchdog Repeater (WDR) Module, operates as a dedicated hardware component for monitoring 5 VDC and 24 VDC power supply rails and distributing watchdog signals within Honeywell Fail Safe Control (FSC) architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 10302/2/1 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.12 kg |
| Dimensions | 4 TE x 3 HE (4 HP, 3U eurocard format) |
| Operating Temp | Standard industrial operating range |
| Power Consumption | 5 VDC at 35 mA; 24 VDC at 25 mA |
| Primary Function | PSU monitoring and watchdog signal distribution |
| Watchdog Input/Output Current | 0.1 mA (inputs WDG1/WDG2); up to 900 mA (output) |
| Rear Interface | DIN 41612 Type F connector with A5 and A9 coding holes |
Channel-to-Channel Isolation and Process Control
The watchdog repeater module maintains system integrity by continuously supervising power supply voltages and repeating the safety watchdog pulse across the rack backplane. Internal monitoring circuitry restricts the 24 VDC supply rail below 37 VDC under double fault conditions, protecting sensitive downstream I/O cards from catastrophic overvoltage. Furthermore, optocoupler-based isolation separates logic monitoring loops from backplane power distributions, ensuring that power anomalies or processor stalls trigger immediate fail-safe state execution across connected safety-instrumented networks.
Frequently Asked Questions
Q: What are the current draw specifications for the module across its power rails?
A: The unit consumes 35 mA from the 5 VDC supply rail (excluding watchdog output current) and 25 mA from the 24 VDC supply rail.
Q: How does the module prevent incorrect slot insertion during maintenance?
A: Physical keying is enforced through module coding holes at positions A5 and A9, which align with large pins A5 and A9 on the FSC rack backplane.
Q: What is the maximum supported watchdog output current capacity?
A: The module handles watchdog output currents exceeding 900 mA, accommodating high-density I/O configurations within large control racks.
Field Installation Guidelines
Ensure rack power is completely removed before handling the hardware. Align the printed circuit board edges of the 10302/2/1 module with the designated 4 TE wide guide slots inside the Honeywell FSC chassis. Verify that the rack backplane coding pins (A5 and A9) match the module coding holes. Slide the module firmly into the backplane until the rear DIN 41612 Type F connector seats securely. Fasten the front panel retaining screws to secure mechanical ground continuity before re-energizing the system.