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5438-436 - Fault-Tolerant Power Supply Module is available in stock which ships the same day.
5438-436 - Fault-Tolerant Power Supply Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5438-436
Manufacturer: Woodward
Series: MicroNet / MicroNet TMR Series
Product Type: Fault-Tolerant Power Supply Module
Input Voltage: 24 VDC Nominal (18–32 VDC)
Output Power: Multi-Rail Stabilized DC Output
Power Redundancy: N+1 Hot-Swappable Load Sharing
Diagnostics: Power OK, Fault & Temperature LED Indicators
Form Factor: Single-Slot Plug-in Module
Cooling Method: Convection / Chassis Airflow
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity: 5–95% Non-Condensing
Repair Turnaround: 3-7 Business Days
Availability: In Stock
Weight: Approx. 1.50 kg (3.30 lbs)
Country of Origin: United States
The 5438-436 is a Fault-Tolerant Power Supply Module designed and manufactured by Woodward for the MicroNet and MicroNet TMR (Triple Modular Redundant) control platforms. It converts raw 24 VDC input power into fully stabilized, low-noise DC voltage rails for powering central processing units, transceivers, and field I/O expansion modules within the MicroNet rack. The module ensures continuous system operation without interruption. Built-in diode isolation and parallel active load-sharing permit hot-swappable replacement, allowing maintenance crews to pull or insert modules without shutting down the control rack or interrupting field operations.
VOLTAGE REGULATION & POWER REDUNDANCY:
The module features high-efficiency switching regulation to convert wide-range 24 VDC plant supply feeds into tightly regulated backplane power rails. Onboard transient protection safeguards internal digital logic against voltage spikes, inductive kickbacks, and field power noise. When deployed in redundant or TMR chassis configurations, internal ORing diodes isolate individual supply units. If an input line feed drops or an internal power rail degrades, adjacent modules seamlessly absorb the full system load with zero transfer time, ensuring uninterrupted control for critical turbine processes.
DIAGNOSTIC MONITORING & FAULT DETECTION:
The Module provides comprehensive diagnostic monitoring across all output voltage lines and internal temperature thresholds. Front-panel status LEDs provide immediate visual indication of operational status, input voltage presence, and fault conditions. The module continuously sends health status reports back to the main CPU over the backplane bus. If an under-voltage condition, over-temperature event, or internal component fault occurs, the system logs a detailed event code to facilitate immediate maintenance intervention.
WHY BUY FROM WOC:
World of Controls specializes in critical parts lifecycle management, repair, and supply solutions for legacy and active Woodward turbine control systems, helping power plants maintain operational reliability and reduce costly downtime. Every Power Supply Module undergoes a comprehensive quality validation process, including full-load burn-in testing, thermal stress verification, voltage regulation testing, and functional performance checks on active Woodward chassis test rigs to ensure dependable operation in demanding industrial environments. With extensive ready-to-ship inventory, WOC enables faster replacement and minimizes turbine shutdown risks caused by component failures. Our expertise in Woodward systems, strict testing standards, flexible supply options, comprehensive warranty support, and worldwide express shipping make us a trusted partner for reliable turbine control system maintenance and long-term lifecycle support.
What is Woodward 5438-436?
The 5438-436 is a fault-tolerant power supply module designed by Woodward for MicroNet and MicroNet TMR digital control systems. It converts plant 24 VDC auxiliary power into regulated internal power rails for chassis modules.
What is the input voltage range of the Woodward 5438-436?
The Woodward 5438-436 operates with a 24 VDC nominal input supply and supports an operating input range of approximately 18–32 VDC, making it suitable for industrial DC power systems.
What type of output power does the 5438-436 provide?
The module provides regulated multi-rail DC power output designed to supply stable voltage levels required by MicroNet control system components, including CPUs, communication interfaces, and I/O modules.
How do I troubleshoot a power fault LED on the 5438-436 front panel?
First, check that the incoming 24 VDC power supply voltage falls within the nominal range (18–32 VDC). If input power is stable, power down the rack and check for physical backplane connector damage or short circuits in downstream I/O cards. If the fault indicator persists on an isolated test bench, internal switching or regulation components require repair.
How does WOC test the Woodward Power Supply Module?
Each module undergoes a detailed testing process, including visual inspection, electrical verification, voltage regulation testing, full-load burn-in testing, thermal stress testing, and functional validation using active Woodward test environments to ensure reliable performance before shipment.
Do you supply unused and refurbished Woodward modules?
Yes. WOC supplies unused, refurbished, and tested Woodward Power Supply Modules based on availability and customer requirements. All supplied units are inspected and quality-tested to ensure dependable operation in industrial turbine control applications.
