Product Overview
The Honeywell 10302/2/1 Watchdog Repeater (WDR) ensures dependable monitoring of 5 Vdc and 24 Vdc power supplies in safety and control systems. It connects the watchdog output of one module to the watchdog input of output modules, guaranteeing synchronized supervision across multiple power supplies.
Moreover, this module supports redundant and non-redundant I/O configurations, making it essential in FSC (Fail-Safe Controller) systems using 10300/1/1 power supplies. Its robust design maintains operational safety even under voltage conditions up to 37 Vdc.
Functional Highlights
- Power Supply Monitoring: Continuously supervises 5 Vdc and 24 Vdc lines to ensure voltage stability.
- Redundancy Support: Works with multiple PSUs (e.g., PSU 2–4) for reliable backup operation.
- High Output Capacity: Supports watchdog output currents up to 900 mA.
- Flexible Integration: Suitable for both redundant central parts and non-redundant I/O sections.
- Hot-Swappable Design: Allows replacement without tools, though it triggers system shutdown during swap.
- Safety Assurance: Certified by CE, TÜV, and UL, meeting industrial reliability standards.
Technical Specifications
| Parameter | Description |
|---|---|
| Model / Type | 10302/2/1 |
| Function | Watchdog Repeater for 5 Vdc / 24 Vdc supervision |
| Approvals | CE, TÜV, UL |
| Software Compatibility | Version ≥ 3.00 |
| Power Consumption (5 Vdc) | 35 mA (excl. output current) |
| Power Consumption (24 Vdc) | 25 mA |
| Input Current (WDG1 + WDG2) | 0.1 mA |
| Max Output Current (WDR OUT) | 900 mA |
| Rack Requirement | 4 TE, 3 HE (= 4 HP, 3U) |
| Key Coding | Holes A5, A9 / Pins A5, A9 |
| Connector Type | DIN 41612 Type F (‘d’, ‘b’, ‘z’ rows) |
| Voltage Range | Safe up to 37 Vdc under fault conditions |
In addition, the 10302/2/1 uses a horizontal bus connection and must be placed in the same I/O section it monitors. This design prevents interference between unrelated control sections.
System Integration
The 10302/2/1 WDR module integrates smoothly with Honeywell FSC systems, maintaining the integrity of critical power supply networks. For instance, it is required when 24 Vdc is supplied by M24-20 HE or M24-12 HE units, or when the watchdog current exceeds 900 mA.
Therefore, the module is widely used in refineries, chemical plants, and power generation systems, ensuring system reliability through continuous power supervision and coordinated fail-safe response.
Installation Notes
Install the Watchdog Repeater in designated rack positions (1, 2, 11–18) within the I/O section it monitors. Maintain adequate ventilation and ensure proper alignment of the DIN 41612 connector. Furthermore, always confirm system shutdown procedures before hot-swapping to avoid central part failure.
Details
| Weight | 0.3 kg |
|---|
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