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The Woodward 9907-164 (505E) is a speed control module commonly used in industrial and mechanical systems, particularly for governing engine or turbine speed.

Key Features & Functions
Speed Control & Regulation
Designed to maintain precise engine or turbine speed under varying loads.
Uses PID (Proportional-Integral-Derivative) control logic for stability.
Adjustable gain, stability, and droop settings for fine-tuning.
Inputs & Outputs
Speed Sensing Input: Typically accepts signals from magnetic pickups (MPUs) or analog sensors.
Output: Adjusts actuator, throttle, or fuel valve via 4-20mA or PWM signals.
Auxiliary I/O: Some versions support remote speed adjustment, load sharing, or relay contacts.
Compatibility
Display & Interface



Typical Applications
Gas/Diesel Engines (Generator sets, compressors).
Steam & Gas Turbines (Power generation, mechanical drives).
Marine & Industrial Propulsion Systems.
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