The Woodward 5464-331 (Revision N) is a high-reliability Kernel Power Supply Module designed for the MicroNet and MicroNet TMR (Triple Modular Redundant) control systems. This module is responsible for converting external source power into the regulated DC voltages required by the system’s processor, communication modules, and I/O boards. The “Revision N” update signifies an optimized hardware build with enhanced surge protection and improved thermal management, ensuring stable operation for critical turbine and engine control applications.
Product Specifications
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Model Number: 5464-331
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Hardware Revision: Rev N
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Module Type: Kernel Power Supply
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Input Voltage: 18–36 VDC (Standard Low Voltage Range)
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Output Ratings: Provides multiple regulated DC rails for backplane logic (+5V, ±15V, etc.)
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Redundancy Support: Supports parallel configuration for redundant power architectures
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Dimensions: 190 mm x 40 mm x 265 mm
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Weight: 1.15 kg
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Country of Origin: USA
Application Fields
The 5464-331 is a core power component in high-availability Woodward systems used in:
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Gas & Steam Turbines: Providing clean power for governors and protection logic.
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Compressor Control: Powering surge control systems in natural gas midstream facilities.
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Marine Propulsion: Oversight of engine management systems on large vessels.
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Industrial Engines: Supporting large-bore reciprocating engines for decentralized power generation.
Product Usage Instructions
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Mounting: Slide the module into the dedicated power supply slot of the MicroNet chassis. Ensure the top and bottom thumb screws are tightened to provide a secure mechanical and electrical ground.
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Input Wiring: Use the specified wire gauge for the DC input terminals to minimize voltage drop. Ensure the polarity is correct before applying power to prevent fuse damage.
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Load Balancing: In redundant configurations, ensure both power supply modules are connected to independent power sources for maximum reliability.
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Monitoring: Regularly check the front panel status LEDs. A green “OK” or “Output” light indicates the module is healthy and the voltage rails are within tolerance.
Frequently Asked Questions (Q&A)
Q: Can I mix Revision N with older revisions in a redundant setup? A: Yes, Woodward power modules are generally designed to be backward compatible. However, for the most balanced power sharing, using identical revisions is recommended.
Q: What should I do if the “Fault” LED is illuminated? A: Check the input voltage levels first. If the input is correct, the module may have an internal short or an over-temperature condition. The module should be replaced immediately.
Q: Is the 5464-331 hot-swappable? A: Yes, in a redundant MicroNet chassis, a faulty power supply module can be replaced while the system is running without affecting the controller operation.
Q: Does this module require external cooling fans? A: The module is designed for convection cooling within the Woodward chassis. Ensure the cabinet’s ventilation filters are clean to maintain proper airflow.
Similar Model Recommendations
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Woodward 5464-658: High Voltage (AC/DC) Power Supply Module.
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Woodward 5466-316: MicroNet TMR CPU Module.
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Woodward 5464-832: Remote Real-Time Network (RTN) Module.
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Woodward 9907-164: 2301A Load Sharing and Speed Control.
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Woodward 5464-414: Analog Input Module for MicroNet systems.
