Core Functions

1. Dual control modes: isochronous mode for standalone constant‑speed operation; droop mode for multi‑unit parallel load sharing

2. Built‑in synchronizer for automatic frequency, phase and voltage matching before grid connection

3. PID closed‑loop speed/load regulation, with load rejection protection, startup ramp control, valve stroke limit

4. Overspeed monitoring, real‑time self‑diagnosis, fault logging and multi‑channel relay alarm output

5. 4‑20 mA analog remote setpoint input, compatible with upper‑level DCS/PLC linkage

6. RS‑232/422 communication ports, Modbus‑RTU protocol, online tuning via Woodward dedicated software

Electrical Specifications

• Power Supply: 24 VDC (wide‑range input: 18–40 VDC)

• Speed Input: Magnetic Pickup (MPU) sensor signal

• Actuator Output: PWM drive signal for hydraulic/electric actuators

• Analog I/O: Programmable 4‑20 mA input/output; digital contact I/O

• Communication: RS‑232, RS‑422, Modbus‑RTU

• Safety Grade: Class 1 Div 2 hazardous area certification, industrial anti‑interference

Environmental & Mechanical Features

• Operating Temperature: −40 °C ~ +85 °C

• Vibration & Shock: Compliant with heavy‑duty industrial standards

• Mounting: Panel‑mount installation

• Enclosure: Rugged metal housing, dust‑proof and corrosion‑resistant

Typical Applications

• Engine/turbine generator set speed‑load control & grid synchronization

• Petrochemical and power plant prime mover governing systems

• Marine auxiliary power generation control

• Oil‑gas compressors and turbo‑expander control

• Multi‑genset parallel operation and load distribution systems