Description
WOODWARD 5466‑318 MicroNet TMR Kernel Power Supply Module
Product Title
WOODWARD 5466‑318 Triple Modular Redundant (TMR) Kernel Power Supply Module for MicroNet TMR Chassis
Product Detailed Description
The Woodward 5466‑318 is a dedicated rack‑mount kernel power supply unit for the MicroNet TMR turbine control platform. It accepts 24 VDC input from the main system power supply and converts it into tightly regulated 5 VDC (10 A max) to feed the TMR kernel backplane, including the TMR040 CPU and associated core logic circuitry. This module implements pre‑charge voltage sequencing for safe, surge‑protected system startup, mitigating in‑rush current damage to critical kernel components. A single front‑panel LED provides visual health indication for power status. Constructed with conformal‑coated circuit boards and rugged metal housing, it is qualified for Class I Division 2 hazardous‑area deployment. This part is obsolete for new‑build projects and is only available as spare‑part inventory for legacy site maintenance.
woodward 5466-318
Technical Parameters
| Item | Specification |
|---|---|
| Manufacturer | Woodward |
| Part Number | 5466‑318 |
| Product Type | TMR Kernel Power Supply Module |
| System Platform | MicroNet TMR Control System |
| Input Voltage | 24 VDC ±10 % (18‑26.4 VDC) |
| Output Voltage | 5 VDC ±5 % |
| Max Output Current | 10 A |
| Front‑Panel Indicator | Single LED for power‑supply health status |
| Operating Temperature | −20 °C ~ +60 °C |
| Approvals | CE (EMC), CSA |
| Hazardous‑area rating | Non‑hazardous; Class I Div 2 Groups A‑B‑C‑D |
| Mounting | Plug‑in slot for MicroNet TMR chassis |
| Conformal Coating | Applied for harsh‑environment protection |
| Weight | Approx. 1.1 kg |
| Country of Origin | USA |
| Lifecycle Status | Obsolete, spare‑part only |
Compatibility & Installation Traps
Compatibility
- Mandatory pairing: Works exclusively with TMR040 CPU module inside MicroNet TMR chassis; will not operate with Simplex MicroNet Plus racks.
- Cannot be used in non‑TMR MicroNet backplanes; mechanical fit does not guarantee electrical compatibility.
- Powered via chassis backplane, external wiring for kernel logic is not permitted.
- Firmware version must align with TMR040 CPU firmware revision; mismatched firmware may trigger abnormal voltage sequencing.
- Not drop‑in compatible with other MicroNet power variants for simplex racks.
Installation Traps & Common Pitfalls
- No hot‑swap support: Remove / insert module only when chassis main 24 VDC power is fully de‑energized. Hot‑plug may destroy backplane and kernel chips.
- Slot position constraint: Must occupy designated kernel‑power slot; installing into I/O or CPU slots causes hardware failure.
- Input‑voltage tolerance: Long‑term operation below 18 VDC or above 26.4 VDC degrades internal power regulators and shortens service life.
- Grounding practice: Isolate kernel‑section ground from heavy‑load actuator ground; ground‑loop noise can trigger false power‑fault LED alarms.
- Pre‑charge sequencing failure: If the LED lights but CPU fails to boot, verify that this kernel‑PS module is seated properly; poor backplane contact will break pre‑charge sequence.
- Environment restriction: Even with conformal coating, avoid condensation inside cabinet; moisture leads to internal regulator short‑circuit.
Standard Operating Procedures (SOP)
- Pre‑installation check: Fully de‑energize the MicroNet TMR chassis. Visually inspect module edge connector for bent pins or corrosion. Confirm target slot is the dedicated kernel‑power slot. Verify TMR040 CPU firmware revision.
- Mechanical installation: Slide the module smoothly into the chassis slot, fasten front‑panel locking screws to guarantee full backplane contact.
- Pre‑power inspection: Confirm no loose debris inside the rack; verify main 24 VDC power supply meets voltage tolerance.
- Power‑on procedure: Restore chassis 24 VDC input. Observe front‑panel LED status. Allow pre‑charge sequence to complete before expecting CPU boot.
- System validation: Check TMR040 CPU boot status via control‑system configuration tool. Confirm no power‑supply‑related fault alarms are logged.
- Load verification: Run full‑system initialization; monitor kernel‑bus voltage readings within configuration software. Confirm stable 5 VDC kernel rail.
- Commissioning handover: Record module serial number and firmware compatibility information into site maintenance documentation.
- Removal & replacement: Before extracting the module, cut off main chassis power completely.
woodward 5466-318
Typical Application Scenarios
‑ Gas‑turbine & steam‑turbine TMR safety‑critical control systems for power generation ‑ Critical combined‑cycle power‑plant MicroNet TMR retrofits & spare‑part replacement ‑ Compressor safety control cabinets with triple‑modular‑redundant architecture ‑ Legacy oil‑and‑gas turbine governor upgrade‑and‑maintenance projects ‑ Marine prime‑mover redundant control systems using MicroNet TMR platform
Matching Supporting Components
‑ Woodward MicroNet TMR system chassis ‑ TMR040 CPU controller module ‑ Redundant 24 VDC main power supply for MicroNet rack ‑ Woodward MicroNet configuration software toolset ‑ TMR‑series I/O modules for MicroNet kernel backplane ‑ ESD‑safe wrist‑strap for module handling
Related Woodward Model Recommendations
- 5466‑317: Legacy TMR kernel power predecessor; for older‑site spare‑part matching only.
- 5501‑471: NetCon SIO serial communication module for MicroNet TMR / Simplex racks.
- : Matching TMR CPU module which must be paired with 5466‑318.
- 5466‑5006 Smart‑Plus SIO: Modern communication alternative for MicroNet‑platform upgrade.
- 8200‑series controllers: New‑generation turbine‑control hardware for full‑platform migration when MicroNet spares become scarce.
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