Description
Product Overview
Part Number: 5466-253
Manufacturer: Woodward
Product Series: MicroNet TMR Turbine Control System
Type: TMR High Density Combo I/O Module
5466-253 is Woodward MicroNet TMR high-density combo multi-function I/O module, designed for triple modular redundant gas/steam turbine and large reciprocating engine control. This single integrated module combines speed monitoring, analog input, analog output and proportional actuator drive functions. It receives MPU magnetic pickup speed signals and process 0-5V analog measurements, outputs 4-20mA control signals and direct proportional actuator drive for turbine governor valves. It is installed in MicroNet TMR VME rack, operates under TMR triple redundant voting architecture for power generation critical control loops. Widely used as spare part for turbine control maintenance, overhaul and retrofit projects.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 5466-253 |
| Module Type | TMR High Density Combo I/O |
| Applicable System | Woodward MicroNet TMR |
| Speed Input | 4 channels MPU magnetic pickup speed inputs |
| Analog Input | 8 channels 0–5VDC analog input |
| Analog Output | 4 channels 4–20mA analog output |
| Actuator Output | 2 channels proportional actuator drive outputs |
| Architecture | Designed for TMR triple modular redundant rack |
| PCB Coating | Conformal coated, sulfur resistant coating option |
| Operating Temperature | 0 ~ +55°C |
| Storage Temperature | -40°C ~ +85°C |
| Certification | CE, CSA |
| Weight | Approx 0.8kg |
Engineer Notes
- 5466-253 is TMR version HD Combo I/O. The simplex counterpart is 5466-316, they are not interchangeable.
- Integrates speed, AI, AO and valve actuator drive in one board, reduces slot count inside TMR control rack.
- MPU speed inputs monitor turbine shaft speed for over-speed protection and governor control.
- Proportional actuator outputs directly drive turbine fuel/steam valve actuators, core governing control channel.
- Not hot-swappable; shut down rack power before removing or inserting this module.
- Conformal coated PCB provides protection for dust, humidity and mild corrosive gas in power plant control cabinet.
- Replacement upgrade part is 5466-1115 (standard accuracy) or 5466-1105 (high accuracy) Smart-Plus combo module.
- Used for critical turbine governing and protection; wiring must follow Woodward EMC specification with shielded twisted pair cable.
Pre-Shipment Test Protocol
- Visual inspection of PCB, front panel, edge connector, components and part number marking
- MPU speed input signal simulation test for all 4 speed channels
- 0-5V analog input channel accuracy test for 8 AI channels
- 4-20mA analog output calibration test for 4 AO channels
- Proportional actuator output drive functional test
- Front panel LED status verification
- Backplane edge connector continuity and insulation resistance test
- Hardware revision and label verification
- Anti-static & shockproof packaging inspection
Buyer FAQ
Q: Is Woodward 5466-253 new original? A: We supply brand new original Woodward units, 12-month warranty, factory test certificate available on request.
Q: What is the difference between 5466-253 and 5466-316? A: 5466-253: TMR triple redundant version. 5466-316: simplex single controller version, cannot be used in TMR rack.
Q: What signals does 5466-253 handle? A: 4 MPU speed inputs, 8 ×0-5V AI, 4 ×4-20mA AO, 2 proportional actuator valve drive outputs.
Q: Can 5466-253 be hot swapped when turbine controller running? A: No, it is not hot-swappable. Rack power must be cut off before replacement.
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