Description
Woodward 5501-467 | MicroNet Simplex Power Supply Board | 220 VAC/VDC
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Model | 5501-467 |
| Product family | MicroNet Digital Control |
| Board type | Simplex power supply |
| Input voltage | 220 VAC/VDC nominal |
| AC operating range | 180–264 VAC |
| AC frequency | 47–63 Hz |
| DC input | High-voltage DC, 220 V class |
| 5 V output current | 32 A @ 55°C |
| 5 V output current | 28 A @ 60°C |
| 5 V output current | 22 A @ 65°C |
| High-voltage DC hold-up | 7 ms @ 225 VDC |
| Chassis compatibility | MicroNet Simplex / MicroNet Plus |
| Maximum altitude | 4000 m |
| Installation | MicroNet chassis slot |
| System architecture | Simplex power configuration |
Woodward’s MicroNet manual distinguishes 5501-467 from the lower-voltage 5501-465 and 120 VAC/DC 5501-466: 5501-465 is the 24 VDC version, 5501-466 the 120 VAC/DC version, and 5501-467 the 220 VAC/DC version.
Product Introduction
The Woodward 5501-467 is a high-voltage power supply board for MicroNet digital control systems. It is designed for MicroNet Simplex applications and can also be installed in MicroNet Plus chassis configurations where the appropriate power architecture is used. Its primary job is to convert the incoming high-voltage AC or DC supply into the regulated power required by the MicroNet control rack.
For maintenance teams, the most important specification is the 220 VAC/VDC input class. The 5 V supply has substantial current capacity, but that capability is temperature-dependent: published ratings are 32 A at 55°C, 28 A at 60°C and 22 A at 65°C. This makes cabinet temperature and total rack loading relevant when diagnosing intermittent power faults.
5501-467
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
A 5501-467 should not be classified as a generic 220 V industrial power supply. It is a MicroNet chassis power board, and its electrical and mechanical interface is tied to the Woodward MicroNet rack architecture.
Typical Applications
- Steam turbine control systems — supplying MicroNet controller racks.
- Gas turbine control systems — supporting CPU and I/O hardware within legacy MicroNet installations.
- MicroNet Simplex control cabinets — replacement of an aging high-voltage power board.
- MicroNet Plus installations — applicable where the chassis and power configuration support the board.
Technical Pitfalls to Avoid
- Do not substitute 5501-465 or 5501-466 by appearance. The three boards represent different input-voltage classes: 24 VDC, 120 VAC/DC and 220 VAC/DC respectively.
- Verify the input source before installation. The 5501-467 is a high-voltage board. A 24 VDC MicroNet supply architecture requires the corresponding low-voltage power board rather than this model.
- Check rack loading and cabinet temperature. The available 5 V current decreases as ambient temperature increases: 32 A at 55°C, 28 A at 60°C and 22 A at 65°C. A power board that appears satisfactory at room temperature may behave differently in a hot turbine-control cabinet.
- Inspect the complete power architecture. Do not diagnose the board in isolation. Check incoming AC/DC supply, rack connections, downstream module loading, power-fault indications and chassis configuration.
- Respect the simplex/TMR distinction. The 5501-467 is documented as a MicroNet Simplex power supply board. Do not assume that a board designed for a simplex arrangement can replace a redundant/TMR power-supply configuration without checking the complete chassis architecture.
Related Products
- Woodward 5501-465 — MicroNet Simplex 24 VDC power supply board; lower-voltage alternative, not a direct electrical substitute.
- Woodward 5501-466 — MicroNet Simplex 120 VAC/DC power supply board.
- Woodward 5501-468 — MicroNet NETCON CPU_040 module.
- Woodward 5501-469 — NETCON CPU_040 variant with LL memory/EMI filter.
- Woodward MicroNet Simplex chassis — host rack architecture for the 5501-467.
- Woodward MicroNet Plus chassis — related chassis platform supporting the 5501-467 in appropriate configurations.
- Woodward MicroNet CPU modules — controller hardware powered through the MicroNet rack power architecture.
- Woodward MicroNet I/O modules — field-interface modules dependent on the rack’s power system.
Procurement Note
For a Woodward 5501-467 replacement, verify:
- Complete part number: 5501-467
- 220 VAC versus 220 VDC input application
- MicroNet Simplex or MicroNet Plus chassis
- Existing rack power architecture
- Total 5 V load
- Cabinet ambient temperature
- Power-fault history
- Board revision and nameplate markings
- Existing MicroNet application and controller configuration
Database classification: Woodward 5501-467 = MicroNet Simplex high-voltage power supply board, 220 VAC/VDC class, for MicroNet digital control chassis.
Do not use the generic descriptions found on some reseller pages that label 5501-467 as a “control module,” frequency-control module, or generic 220 V power supply. The Woodward MicroNet documentation identifies it specifically as the MicroNet Simplex AC/DC 220 V power supply board.
