Core Functions

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

2. Built‑in automatic synchronizer, realizes precise frequency, phase and voltage matching for grid‑connection via analog/discrete bias signals

3. High‑precision PID closed‑loop speed/load control, with MAP manifold pressure limit, torque limit, load rejection protection, soft load transfer functions

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

5. 4‑20 mA / 1‑5 VDC remote setpoint input, compatible with upper‑level DCS/PLC linkage

6. Independent RS‑232 & RS‑422 dual serial ports, supports Modbus‑RTU communication, online tuning and real‑time monitoring via dedicated Woodward software

Electrical Specifications

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

• Speed Input: Magnetic Pickup (MPU) sensor signal

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

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

• Communication: RS‑232, RS‑422 serial ports, Modbus‑RTU protocol

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

Environmental & Mechanical Features

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

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

• Mounting: Panel‑mount installation

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

Typical Applications

• Diesel/gas engine genset speed‑load control & grid synchronization

• Steam/gas turbine governing system for power plants and petrochemical industry

• Marine auxiliary power generation prime mover control

• Oil‑gas compressors and turbo‑expander control

• Multi‑genset parallel operation and load distribution systems