The Woodward 9907-252 Governor Control Board is a reliable speed control module designed for precise engine and turbine governing applications. It provides stable speed regulation, fast dynamic response, and dependable load sharing performance in industrial power generation and mechanical drive systems. Built for durability and long-term operation, this module is widely used in diesel and gas engine control panels.

Product Specifications

Parameter	Description
Manufacturer	Woodward
Model Number	9907-252
Product Type	Governor Control Board / Speed Control Module
Country of Origin	United States
Input Voltage	18–32 VDC
Power Consumption	Approx. 15 W
Control Signal Type	Speed sensor input (magnetic pickup)
Output Signal	Actuator drive output
Operating Temperature	-20°C to +70°C
Storage Temperature	-40°C to +85°C
Dimensions	Approx. 240 × 160 × 60 mm
Weight	Approx. 1.5 kg
Mounting Type	Panel or rack mounting

Key Features

• High-precision speed regulation
• Fast response to load changes
• Stable isochronous or droop control modes
• Adjustable gain and stability settings
• Strong anti-interference capability
• Designed for industrial engine governing systems

Installation and Operation Notes

1. Ensure the input voltage matches the rated 18–32 VDC before powering the module.
2. Install in a clean, dry control cabinet with adequate ventilation.
3. Use shielded cables for speed sensor wiring to prevent signal interference.
4. Verify correct actuator wiring before startup to avoid output damage.
5. Perform parameter adjustment (gain, droop, stability) gradually during commissioning.
6. Disconnect power before performing maintenance or wiring checks.

Application Areas

• Diesel generator sets
• Gas engine control systems
• Industrial turbine speed control
• Marine auxiliary engines
• Mechanical drive equipment

Frequently Asked Questions (FAQ)

Q1: What type of speed sensor is compatible with 9907-252?
A: It typically supports magnetic pickup (MPU) speed sensors.

Q2: Can this module operate in droop mode?
A: Yes, it supports both isochronous and droop speed control modes.

Q3: Is it suitable for parallel generator operation?
A: Yes, with proper configuration, it can be used in load sharing applications.

Q4: What happens if the input voltage exceeds the rated range?
A: Overvoltage may damage internal components. Always verify stable DC supply before energizing.

Q5: Does it require regular maintenance?
A: Routine inspection of wiring, connectors, and cooling conditions is recommended, but the module itself requires minimal maintenance.

Recommended Similar Models

Model Number	Description
Woodward 9907-018	Digital Speed Control Module
Woodward 9907-164	Engine Governor Controller
Woodward 9907-205	Load Sharing Speed Control
Woodward 9907-147	Generator Governing Module
Woodward 9907-838	Advanced Digital Governor Control

The Woodward 9907-252 Governor Control Board offers dependable speed regulation performance for industrial power systems. With stable control capability and rugged construction, it remains a trusted solution for engine and turbine governing applications.