Description
Woodward 8563-530
Technical Specifications
- Contact Type: Form C (SPDT) or Form A (NO) heavy-duty relays.
- Contact Rating: Typically 5A to 10A at 250 VAC/30 VDC.
- Quantity: Multi-relay module (e.g., 4, 8, or 16 channels).
- Isolation: Galvanic isolation between coil and contacts.
Functional Features
- High Switching Capacity: Capable of driving inductive loads directly.
- LED Indication: Visual status for each relay channel.
- Manual Override: Test buttons for maintenance and commissioning.
- Protection: Internal flyback diodes and snubbers to suppress arcing.
Application Scenarios
Turbine trip circuits, lube oil pump control, cooling fan activation, and alarm annunciation.
Performance Parameters
- Mechanical Life: Millions of operations.
- Operate Time: <10 ms typical.
Material Composition
Silver-alloy contacts for arc resistance. High-temperature plastic sockets. Gold-plated PCB traces for signal integrity.
Structural Characteristics
Pluggable module design. Front panel features test switches and LEDs. Rear connector mates with the system backplane or terminal adapter.
Working Principle
The control processor energizes an internal optocoupler, which activates the relay coil. The magnetic field pulls the armature, closing or opening the external circuit.
Installation Requirements
Plug securely into the designated slot. Wire external loads using appropriately sized conductors. Install suppression circuits across inductive loads if not built-in.
Usage Precautions
- Do not exceed the contact current/voltage ratings.
- Replace the entire module if a single relay fails (in pluggable types).
- Ensure the control logic includes proper debounce timing for mechanical relays.
