9907-135
May 26, 2026

9907-135

Woodward 9907‑135 is a 2301A‑series electronic speed governor, designed for diesel engines, gas engines, steam/gas turbines and generator sets. It provides high‑precision speed regulation, stable parallel load sharing, overspeed protection and fault monitoring for prime movers in power generation, petrochemical, oil‑gas and marine heavy‑duty industries.

Description

Core Functions

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

  2. PID closed‑loop control with startup ramp, actuator stroke limit and load rejection protection.

  3. Built‑in overspeed protection, real‑time self‑diagnosis and relay alarm outputs.

  4. 4‑20 mA analog remote setpoint input for DCS/PLC system integration.

  5. Forward‑acting control logic for fuel actuator drive.

Electrical Specifications

  • Power Supply: 18–40 VDC (nominal 24 VDC)

  • Speed Input: Magnetic Pickup (MPU) sensor

  • Actuator Output: Proportional current output

  • Communication: RS‑485 Modbus‑RTU

  • Certification: CE certified, industrial anti‑interference

Environmental & Mechanical Features

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

  • Mounting: Panel‑mount installation

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

Typical Applications

  • Speed‑load control for engine & turbine generator sets

  • Petrochemical, oil‑gas compressor prime mover control

  • Marine auxiliary power generation systems

  • Industrial prime mover governing and safety protection systems


Get a Quote