9904-254
Description
Core Functions
Dual control modes: isochronous mode for single‑unit constant‑speed operation; droop mode for multi‑unit parallel load sharing.
Built‑in auto‑synchronizer for automatic frequency, phase and voltage matching to achieve smooth grid connection.
PID closed‑loop speed‑load regulation with critical speed avoidance, valve stroke limit, load rejection protection and startup ramp control.
Real‑time overspeed monitoring, self‑diagnosis, fault logging and multi‑channel relay alarm outputs.
4‑20 mA analog remote setpoint input for upper‑level DCS/PLC system integration.
Local panel configuration, online tuning and real‑time monitoring via dedicated Woodward software.
Electrical Specifications
Power Supply: 24 VDC (wide‑range 18–40 VDC)
Speed Input: Magnetic Pickup (MPU) sensor signal
Actuator Output: PWM drive signal for hydraulic / electric actuators
I/O: Programmable 4‑20 mA analog I/O, multi‑channel digital contact I/O
Communication: RS‑232 / RS‑422, Modbus‑RTU protocol
Safety Certification: Class 1 Div 2 hazardous area certified, industrial‑grade anti‑interference
Environmental & Mechanical Features
Operating Temperature: −40 ℃ ~ +85 ℃
Mounting: Panel‑mount installation
Enclosure: Rugged metal housing, dust‑proof and corrosion‑resistant for harsh industrial environments
Typical Applications
Speed‑load control & auto‑synchronization for diesel/gas engine and turbine generator sets
Petrochemical, power plant and oil‑gas compressor control systems
Marine auxiliary power generation prime mover control
Multi‑genset parallel operation and load distribution systems
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