Woodward 5501‑372 REV B Digital Control Module

The Woodward 5501‑372 REV B is a rack‑mounted digital controller module designed for turbine and generator control systems. It processes speed, load and analog feedback signals and outputs precise regulation commands to actuators for stable prime‑mover operation.

This revision B board integrates multi‑channel I/O circuits, on‑board diagnostics and non‑volatile memory for parameter storage. Original production has been discontinued. It serves as aftermarket spare parts for power generation, oil and gas turbine control cabinet maintenance and system upgrades.

Main Specifications

1. Brand: Woodward; Model:5501‑372 REV B; Type:Digital Turbine Control Module
2. Applicable Equipment:Gas turbine, steam turbine and generator control rack systems
3. Signal Interface:Analog inputs, digital I/O, speed pick‑up sensor signal interface
4. Memory:Battery‑backed non‑volatile memory to save control configuration parameters
5. Diagnostics:Built‑in circuit self‑test and LED fault status indication
6. Operating Temperature:‑20℃ ~ +60℃, industrial rugged rack plug‑in design
7. Supply Status:Original production discontinued, available as tested surplus or refurbished spare parts

Core Functions

1. Collect speed, temperature, pressure and generator load feedback signals in real time.
2. Execute closed‑loop speed and load control algorithms for turbine governing regulation.
3. Store user control parameters and protection setpoints in non‑volatile memory.
4. Detect internal hardware faults and field wiring failures through continuous self‑diagnosis.
5. Transmit operating data and alarm information to upper monitoring systems via rack communication bus.
6. Act as a key control unit of Woodward legacy turbine and generator control systems.

Application Scenarios

1. Turbine speed governing and generator load control for thermal power and combined‑cycle plants.
2. Spare module replacement and daily maintenance of existing Woodward control racks.
3. Technical renovation and reliability improvement of old‑generation power generation control cabinets.
4. On‑site troubleshooting and replacement of faulty control modules on running turbine units.
5. Spare‑parts stocking for system integrators and power plant automation maintenance contractors.
6. Global aftermarket spare supply for technicians maintaining obsolete Woodward turbine control hardware.

FAQ

1. Q:What does REV B mean for 5501‑372?
   A:REV B represents the second hardware revision with optimized circuits and improved stability.
2. Q:What is the main purpose of this module?
   A:It realizes closed‑loop speed and load governing control for gas or steam turbines and generators.

3. Q:Is this Woodward control module still in original production?
   A:Woodward has stopped manufacturing this model, only tested surplus and refurbished spare units are available.