Description
The Woodward 5466-318 is a Triple Modular Redundant (TMR) Kernel Power Supply (PS) module specifically designed for the Woodward MicroNet™ digital control platform. It plays a foundational role in safety-critical applications such as gas turbine control, nuclear power, and aerospace systems by ensuring a stable, highly reliable power source for the kernel section of the control system.
Product Specifications
- Part Number: 5466-318
- Manufacturer: Woodward
- Series: MicroNet™ Digital Control
- Input Voltage: 24 VDC (±10%)
- Output Voltage: 5 VDC (±5%)
- Output Current: 10 A (maximum)
- Chassis Compatibility: MicroNet TMR
- Required Pairing: TMR040 CPU module
- Indicators: Single LED (Power Supply Health)
- Operating Temperature: -20°C to +60°C
Key Operational Features
- Kernel Regulation: The module receives 24 VDC from the MicroNet main power supplies and regulates it to a stable 5 VDC, distributing up to 10 A to critical kernel components.
- Precharge Functionality: It generates a precharge voltage essential for safe and controlled startup sequences, protecting the system from power surges during initial energization.
- Fault Tolerance: Within the TMR architecture, each kernel section is equipped with its own dedicated kernel power supply. This design ensures that if one section experiences a power anomaly, the remaining sections maintain operation, preserving overall system availability.
- Installation Requirements: In a MicroNet TMR sub-chassis, the Kernel Power Supply must be installed in the first module slot from the left, followed immediately by the Kernel CPU module in the adjacent slot to the right.
Maintenance & Safety Notes
- Handling: Always follow ESD (Electrostatic Discharge) precautions when handling this module to prevent damage to sensitive internal circuitry.
- Removal Warning: Before attempting to remove this module, ensure all other modules within the MicroNet TMR Kernel power supply section have been safely removed.
- Hazardous Environments: The 5466-318 is rated for use in non-hazardous locations and Class I, Division 2, Groups A, B, C, and D locations. Installation in unapproved environments may compromise system safety.

