8440-1809
May 26, 2026

8440-1809

Woodward 8440‑1809 is a ProAct Series Digital Electronic Governor (Speed Controller) tailored for diesel‑ and gas‑engine‑powered generator sets, marine propulsion engines and industrial prime movers. It integrates high‑precision closed‑loop speed regulation, direct fuel actuator driving, overspeed protection and fault self‑diagnosis. With fast dynamic response, strong anti‑interference capability and wide‑temperature stability, it is widely used in power generation, oil & gas, mining and heavy‑duty marine applications.

Description

Core Functions

  1. High‑precision closed‑loop speed control to maintain stable frequency under load fluctuations

  2. Direct PWM drive for Woodward fuel‑control actuators

  3. Built‑in overspeed protection, fault diagnosis and alarm output

  4. Supports isochronous mode for standalone gensets and droop mode for parallel‑running units

  5. Remote speed setpoint via 4‑20 mA analog input

  6. Parameter configuration through dedicated Woodward PC tuning 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 fuel‑control actuators

  • Analog Input: 4‑20 mA for remote speed reference

  • Communication: Serial interface for monitoring and parameter adjustment

  • EMC: Industrial‑grade electromagnetic interference resistance

Environmental & Mechanical Features

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

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

  • Mounting: Panel‑mount installation

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

Typical Applications

  • Diesel & gas engine generator sets

  • Marine auxiliary power and propulsion systems

  • Oilfield, mining and industrial prime movers

  • Continuous‑run and emergency backup power supply systems


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