Core Functions

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

2. Built‑in auto‑synchronizer to automatically match frequency, phase and voltage for stable grid‑connection.

3. High‑precision PID closed‑loop control, supporting critical speed avoidance, valve stroke limit, load rejection protection and startup ramp control.

4. Real‑time overspeed monitoring, self‑diagnosis, fault logging and multi‑channel relay alarm outputs.

5. 4‑20 mA analog remote setpoint input for DCS/PLC upper‑system connection.

6. Local panel configuration and online tuning 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 Grade: Class 1 Div 2 hazardous area certified, industrial‑grade anti‑interference

Environmental & Mechanical Features

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

• Mounting: Panel‑mount installation

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

Typical Applications

• Speed‑load control & auto‑synchronization for engine/turbine generator sets

• Power plant, petrochemical and oil‑gas compressor control systems

• Marine auxiliary power generation control

• Multi‑genset parallel operation and load distribution