Description
Woodward 8237-1603
Technical Specifications
- Part Number: 8237-1603
- Output Type: Form-C relay contacts
- Contact Rating: 2A @ 250 VAC
- Channels: 8 independent relays
Functional Features
- Configurable Logic: Each relay can be assigned to specific trip or alarm conditions.
- Contact Monitoring: Detects open or shorted relay coils.
- Manual Override: Allows manual relay operation for testing.
Application Scenarios
Used for turbine trip solenoids, lube oil pump control, and alarm annunciation.
Performance Parameters
- Contact Life: 100,000 operations at full load.
- Response Time: <15 ms.
Material Composition
Industrial-grade relays with silver-alloy contacts and arc suppression.
Structural Characteristics
- Terminal Layout: Clearly labeled screw terminals for field wiring.
- LED Indicators: Individual relay status indicators.
Working Principle
Receives discrete commands from the voting processor and energizes corresponding relay coils. The module continuously monitors coil current to detect failures.
Installation Requirements
- Load Protection: Install snubbers or flyback diodes for inductive loads.
- Wiring: Use appropriately sized wire for relay current ratings.
Usage Precautions
- Load Limits: Do not exceed contact voltage or current ratings.
- Testing: Exercise relays during maintenance to prevent contact sticking.
