Core Functions

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

2. 4‑20 mA / 1‑5 VDC analog remote setpoint input, compatible with upper‑level DCS control

3. Integrated overspeed protection, speed monitoring, fault self‑diagnosis and alarm output

4. PID high‑precision closed‑loop speed control, stable frequency under sharp load fluctuations

5. Support turbine synchronization, deceleration control, fuel limit and startup protection functions

6. Parameter configuration, real‑time monitoring and debugging 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: PWM drive signal for hydraulic/electric actuators

• Analog I/O: 4‑20 mA remote speed/load reference

• Communication: RS‑232/485 serial port, Modbus‑compatible

• Safety Grade: SIL2; Protection Class: IP65

Environmental & Mechanical Features

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

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

• Mounting: Panel‑mount installation

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

Typical Applications

• Industrial steam/gas turbine speed & load control

• Small turbine‑generator grid‑connected power generation

• Turbine expander and compression unit control

• Petrochemical, power plant and energy heavy‑duty prime mover systems

• Marine auxiliary turbine power control