Description
Woodward 8238-496
Technical Specifications
- Input: Wide range 85-264 VAC or 100-300 VDC.
- Output: Regulated 24 VDC, 12 VDC, and 5 VDC rails.
- Power Rating: Sufficient wattage to support a fully loaded chassis.
- Efficiency: High-efficiency switching topology (>90%).
Functional Features
- Redundancy: Designed to operate in parallel for N+1 redundancy.
- Protection: Over-voltage, over-current, and short-circuit protection.
- Status Monitoring: “Power Good” relay output and front-panel LED.
- Low Ripple: Clean DC output to prevent noise in analog circuits.
Application Scenarios
Primary power source for all Woodward MicroNet, 5000 Series, and PeakMaster control panels.
Performance Parameters
- Load Regulation: <0.5% from no-load to full-load.
- Hold-up Time: >20 ms at full load.
Material Composition
Industrial-grade capacitors and transformers. Metal enclosure acting as a heat sink. Conformal-coated PCB.
Structural Characteristics
Plug-in module for the control rack or standalone DIN-rail mount. Front panel has voltage test points and status LEDs.
Working Principle
Uses high-frequency switching to step down and rectify the input voltage. A feedback loop adjusts the duty cycle to maintain constant output voltage despite input or load changes.
Installation Requirements
Ensure adequate airflow across the module. Connect input power through a properly rated circuit breaker. Verify output voltage before connecting load modules.
Usage Precautions
- Never hot-swap unless the system supports it.
- Check input fuses if the unit fails to power up.
- Replace immediately if the “Power Good” signal is lost.
