Core Functions

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

2. Precision PID closed‑loop speed/load control, supports critical speed avoidance, valve stroke limit, startup fuel limit and interlock protection

3. Real‑time self‑diagnosis, overspeed monitoring and multi‑channel fault alarm output to ensure system safety

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

5. Supports turbine synchronization, deceleration ramp control, extraction/admission regulation for steam turbines

6. On‑site programmable via front‑panel HMI; online parameter tuning and monitoring with dedicated Woodward software

Electrical Specifications

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

• Speed Input: Magnetic Pickup (MPU) sensor signal

• Actuator Output: 0‑10 VDC analog signal to drive hydraulic/electric actuators

• Analog I/O: 6‑channel programmable 4‑20 mA input/output; 16‑channel digital contact I/O

• Communication: RS‑232 serial port, Modbus‑RTU protocol, supports Ethernet optional connection

• Safety Grade: SIL2; Protection Class: IP65

Environmental & Mechanical Features

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

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

• Mounting: Panel‑mount installation

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

Typical Applications

• Single‑actuator steam/gas turbine speed‑load control & overspeed protection

• Small grid‑connected turbine‑generator control system

• Petrochemical turbo‑expander and compressor unit control

• Marine auxiliary power generation prime mover control

• Industrial power plant and energy heavy‑duty equipment regulation