Core Functions

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

2. Integrated automatic synchronizer for frequency, phase and voltage matching prior to grid connection

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

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

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

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

Electrical Specifications

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

• Speed Input: Magnetic Pickup (MPU) sensor signal

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

• Analog I/O: Programmable 4‑20 mA inputs/outputs; digital contact I/O

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

• Safety Grade: Class 1 Div 2 hazardous‑area certified, industrial‑grade 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 and 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