9907-154
May 26, 2026

9907-154

Woodward 9907‑154 is a 2301A series electronic speed‑load controller, mainly applied to diesel engines, gas engines, steam/gas turbines and generator sets. It realizes stable speed regulation, precise parallel load sharing, overspeed protection and real‑time fault diagnosis for prime movers in power generation, petrochemical, oil‑gas and marine heavy‑duty industrial fields.

Description

Core Functions

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

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

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

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

  5. Forward‑acting control logic, supports hydraulic actuator drive, SIL2 safety‑level compliant.

Electrical Specifications

  • Power Supply: 18–40 VDC (nominal 24 VDC, low‑voltage model)

  • Speed Input: Magnetic Pickup (MPU), selectable speed frequency range

  • Actuator Output: 0–200 mA proportional current output

  • Communication: RS‑485 Modbus‑RTU

  • Certification: CE, UL, SIL2 certified

Environmental & Mechanical Features

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

  • Protection Grade: IP65

  • 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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