Woodward 8904-632 Digital Governor Controller

Product Brief Introduction The Woodward 8904-632 digital governor controller is an integrated speed and load control unit for prime movers. It receives speed feedback signal, runs closed-loop regulation algorithm and outputs drive signal to fuel actuators for diesel and gas generator sets.
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Technical Specifications 24VDC power supply, magnetic pickup speed input, proportional actuator drive output. Operating temperature: -40℃ ~ +70℃.

Functional Features Speed closed-loop regulation, load sharing control, overspeed alarm, parameter configuration, built-in fault self-test.

Application Scenarios Land generator set governing, marine engine speed control, parallel generator set control.

Performance Parameters Fast regulation response, adjustable speed droop, stable actuator driving performance.

Structural Characteristics Compact integrated controller, terminal wiring block, running and fault LED indicators.

Working Principle The controller compares actual rotating speed from magnetic pickup with setpoint, calculates fuel adjustment command and drives fuel actuator to adjust fuel supply for speed stabilization.

Installation Requirements Install on shock absorption bracket, use shielded twisted pair for speed sensor wiring.

Usage Notes Calibrate actuator stroke after installation, set overspeed threshold according to engine specification.




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