Woodward 9905-390 Digital Speed Governor

Product Brief Introduction Compact digital speed governor module for prime mover closed-loop speed regulation and overspeed protection.
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Technical Specifications 24VDC power supply, magnetic pickup input, relay alarm and trip output. Operating temperature: -40℃ ~ +80℃.

Functional Features Speed closed-loop governing, load trimming, overspeed trip protection, internal fault diagnosis.

Application Scenarios Diesel generator, gas engine and industrial prime mover control.

Performance Parameters Stable governing performance, fast trip response, adaptable to variable load condition.

Structural Characteristics Metal shield housing, DIN rail mounting, front panel LED indicator.

Working Principle Acquire shaft speed signal, calculate deviation between actual speed and setpoint, output regulating signal to fuel actuator.

Installation Requirements Keep away from heat source and strong electromagnetic field, use shielded twisted pair wire for speed signal.

Usage Notes Verify pickup wiring polarity before commissioning, do not arbitrarily modify protection parameters.




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