WOODWARD 9907-162 Digital Engine Governor



WOODWARD 9907-162 Digital Engine Governor

Core positioning

9907-162 is a single channel, highly integrated digital speed control module designed specifically for controlling the speed and load of a single engine. It responds to load changes and maintains stable and efficient operation by precisely controlling the fuel actuator or throttle of the engine.

Main Features

Excellent control performance

Specialized engine control algorithm: Adopting PID control algorithm optimized for reciprocating engine characteristics, providing fast load response and excellent speed stability.

Multiple control modes:

Speed/frequency control: used for pre grid connection or islanding operation.

Load control/power control: used for grid connected operation, can allocate loads according to settings.

Process control: can be used to control other process variables such as pressure, temperature, etc. (as a PID controller).

Highly integrated and user-friendly

Built in control panel: The module features a backlit LCD display and buttons on the front, allowing for parameter settings, calibration, viewing of operational data, and diagnostic information without the need for external tools.

Plug and play actuator driver: The module directly integrates a driver circuit, which can directly drive Woodward's PSA/PST series electromagnetic actuators, simplifying system wiring.

Multiple communication interfaces:

RS-232/RS-485: Used to connect to a PC through Toolkit ™  Software for deep configuration and monitoring.

CAN (J1939): Used for data exchange with engine ECU, other controllers, or upper level monitoring systems.

Powerful protection and diagnostic functions

Programmable shutdown protection: Users can set shutdown protection values such as overspeed, low speed, low oil pressure, high temperature, etc. to ensure engine safety.

Real time diagnosis: Continuously monitor the system status, provide detailed fault alarms and event records, and facilitate quick troubleshooting.

Feedback monitoring of actuators: Ensure that the actuator position is consistent with the control instructions, enhancing system reliability.

Flexible application configuration

Multiple inputs/outputs:

Analog input: used to receive signals from speed sensors, backup process variables, etc.

Digital input: used for commands such as start stop, idle/rated speed switching, and grid synchronization.

Analog/Relay Output: Used for driving instruments, alarm indication, or auxiliary control.

Compatible with multiple speed sensors: supports magneto electric speed sensors or analog speed signals.

Typical application scenarios

Gas generator set (natural gas, biogas, coalbed methane, associated gas, etc.)

Diesel generator set

Mechanical drive (such as gas compressors, pumps, etc.)

Marine auxiliary machinery

Power supply or power equipment at oil and gas field sites.

Product advantages

High reliability: Industrial grade design, suitable for harsh environments.

Easy installation and debugging: high integration, relatively simple wiring, and easy debugging through panels or software.

Strong stability: A control algorithm designed specifically for engines that can effectively suppress speed oscillations caused by sudden load changes.

Convenient maintenance: Rich diagnostic functions and modular design reduce maintenance difficulty and time.

Matching and compatibility

Main drivers: Woodward PSA series or PST series actuators.

Configuration software: Woodward Toolkit ™  (Windows platform) is a core tool for advanced parameter settings, data recording, and graphical analysis.

It is a common upgrade option to replace old-fashioned analog speed controllers (such as UG-8) or early digital speed controllers.