Core Functions

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

2. PID closed‑loop regulation including critical speed avoidance, valve stroke limiting, startup ramp control and load rejection protection.

3. Independent overspeed supervision, real‑time self‑diagnosis, fault logging and multi‑channel relay alarm outputs.

4. 4‑20 mA analog remote setpoint input for interfacing with DCS/PLC systems.

5. Local parameter setting and online tuning via Woodward configuration software.

Electrical Specifications

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

• Speed Input: Magnetic Pickup (MPU) signal

• Actuator Output: PWM drive for hydraulic / electric actuators

• I/O: Programmable 4‑20 mA analog I/O, digital contact I/O

• Communication: RS‑232 / RS‑485, Modbus‑RTU

• Certification: Class 1 Div 2 hazardous area rated, industrial anti‑interference

Environmental & Mechanical Features

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

• Mounting: Panel‑mount

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

Typical Applications

• Engine and turbine genset speed‑load control

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

• Marine auxiliary power prime mover control

• Industrial prime mover governing & safety systems