9907-105
May 26, 2026

9907-105

Woodward 9907‑105 is a 2301A series electronic speed and load‑sharing governor, widely applied to diesel engines, gas engines, steam/gas turbines and generator sets. It provides stable speed regulation, precise parallel load sharing, overspeed protection and real‑time 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 control, actuator stroke limit and load rejection protection.

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

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

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

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


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