5501-381 Digital Speed Control Module

Key Features and Advantages

The Woodward 5501-381 digital speed controller delivers precision engine and turbine regulation for critical power generation applications. Engineered for extreme environments, its rugged IP67-rated enclosure withstands harsh conditions including temperature extremes (-40°C to +85°C), high vibration, and exposure to oils/chemicals. The controller’s advanced PID algorithms maintain speed within ±0.25% of setpoint even during sudden load changes, ensuring stable power output.

Multi-mode control flexibility: The 5501-381 seamlessly transitions between isochronous, droop, and base load control modes to match operational requirements. Its CANbus J1939 interface provides real-time engine data to control systems while supporting remote parameter adjustment. Four universal analog inputs accept multiple signal types including speed sensors, temperature probes, and pressure transducers.

5501-381

Advanced diagnostics: Continuous monitoring of engine parameters with configurable alarm thresholds enables predictive maintenance. The 5501-381 stores comprehensive operational data in non-volatile memory for performance analysis and fault diagnostics. Six configurable digital I/O points provide flexibility for start/stop sequencing, alarm signaling, and auxiliary control functions.

Safety compliance: Certified for ATEX Zone 2 hazardous locations, the 5501-381 meets stringent safety requirements for oil/gas applications. Password-protected configuration prevents unauthorized adjustments, with audit trails tracking all parameter changes. The controller’s low-power design minimizes heat generation in control cabinets while maintaining precise speed regulation.

Configuration efficiency: Woodward’s proprietary ToolKit software simplifies setup with pre-configured templates for common engine types. The controller supports online tuning without engine shutdown, reducing commissioning time. Its compact design saves valuable panel space without compromising functionality or control precision.