Description

Woodward 9907-1199 digital speed governor control module

Overview

The Woodward 9907-1199 is a high-performance digital speed controller module produced by Woodward Corporation and belongs to its widely recognized 9900 series speed control product line. This module is specifically designed for precisely controlling the rotational speed and load of various prime movers, such as gas turbines, diesel engines, and steam turbines, and it serves as the core intelligent control unit of the engine management system.

As an electronic controller integrating advanced control algorithms and powerful processing capabilities, the 9907-1199 receives speed signals from sensors and external set point instructions, and after high-speed computing, outputs control signals to drive actuators (such as fuel valves and intake guide vanes), thereby achieving precise regulation of the engine. Ensure that it can operate stably and efficiently under different working conditions.

Core features and advantages

1. Outstanding control performance
High-precision speed regulation: Utilizing advanced proportional-integral-derivative (PID) control algorithms and multi-variable control strategies, it offers extremely precise speed and load control, with steady-state regulation accuracy reaching ±0.25% or higher.

◦ Fast dynamic response: The optimized control logic ensures that the system can respond quickly and restore stability under transient conditions such as sudden load changes and fuel variations, preventing overshoot or stalling.

◦ Multiple control modes: Supports speed control, power control, pressure control (such as back pressure control), and other modes, and can achieve disturbance-free switching.

2. Powerful integration and communication capabilities
Multi-protocol communication: Standard configuration supports multiple industrial standard communication protocols, such as CAN bus (J1939, CANopen), Modbus (RTU/TCP), and Ethernet, which can be easily integrated into upper-level control systems (such as DCS, PLC) or factory-level monitoring networks to achieve data transparency and remote monitoring.

Rich I/O interfaces: Provide a large number of configurable analog and digital input/output channels for connecting speed sensors (magnetic-electric or Hall type), temperature/pressure transmitters, switch signals and other peripheral devices.

9907-1199

3. Extremely high reliability and robustness
◦ Military-grade quality: With strict component screening and manufacturing processes, it ensures long-term reliable operation in extreme environments (wide temperature range, high humidity, strong vibration, and strong electromagnetic interference), with an extremely long mean time between failures (MTBF).

◦ Robust design: Modules typically feature a metal casing and sturdy connectors, with a high protection level (such as IP20), making them suitable for installation in industrial control cabinets.

4. Advanced diagnostic and maintenance functions
Comprehensive self-diagnosis: Continuously monitor one’s own health condition, power supply status, validity of input signals, and output load conditions. Any abnormality will trigger an alarm and report detailed fault codes through LED indicator lights and communication interfaces.

◦ Visual configuration: Graphical configuration, parameter tuning, real-time data monitoring and fault diagnosis are carried out through Woodward’s dedicated Toolkit software. The software also offers an oscilloscope function and an event recorder, facilitating in-depth analysis and optimization of control performance.

◦ Hot-swapping support (optional) : Some configurations may support hot-swapping functionality, allowing modules to be replaced without system downtime and maximizing device operating time.

5. Flexible application adaptability
The modular hardware and highly flexible software enable it to be widely applied to various types of engines and different application scenarios through configuration, reducing the need for custom hardware.

Typical application fields

• Power generation field: Speed and load control of gas turbine generator sets, diesel generator sets, and steam turbines.

• Ship propulsion: Speed regulation systems for the main and auxiliary engines of ships.

• Oil and gas industry: Precise control of natural gas pipeline compressor units and drilling power packs.

• Industrial drive: Engine control for driving large industrial equipment such as compressors and pumps.

Summary of Technical Specifications

• Manufacturer: Woodward Inc.

Model/Part Number: 9907-1199

• Type: Digital speed governor control module

• Speed input: Supports multiple speed sensors (magnetic-electric, Hall, etc.)

• Communication protocols: CAN (J1939, CANopen), Modbus, Ethernet

• I/O capacity: Multiple configurable analog and digital channels

• Power supply: Typically 18-32 VDC

• Ambient temperature: Wide operating temperature range (e.g. -40°C to +85°C)

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