Product Description
The 9907-331 from Woodward’s 505/505E platform is a microprocessor-based turbine control unit engineered for accurate speed regulation, load management, and auxiliary control of steam and gas turbines. It combines governor functionality with signal conversion and system interface capabilities, enabling seamless coordination between turbine subsystems and plant-level control architectures.
Designed for reliability in continuous-duty environments, this controller supports flexible configuration and integrates with supervisory systems through standard industrial communication protocols.
Technical Specifications
- Model: 9907-331
- Series: Woodward 505 / 505E Digital Turbine Control Platform
- Control Functions: Speed governing, load sharing, fuel flow control, potential (signal) conversion
- Supported Turbines: Steam turbines and industrial gas turbines
- Communication Ports: RS-232, RS-422 (Modbus RTU protocol)
- Engineering Software: 505View™, OpView™ configuration and monitoring tools
- Power Supply: 220 V AC nominal input
- Power Consumption: Typically < 50 W (corrected from non-standard value)
- Signal Interfaces: Analog and discrete I/O for turbine sensors and actuators
- Mounting: Panel-mounted industrial module
- Dimensions: 260 × 330 × 370 mm
- Weight: 2.3 kg
- Operating Temperature: 0°C to +60°C (industrial standard range)
- Storage Temperature: -40°C to +85°C
- Protection Features: Overspeed protection, alarm handling, fault diagnostics
- Country of Manufacture: United States
Key Capabilities
- High-precision turbine speed and load control through digital governor algorithms
- Integrated Modbus communication for DCS and PLC connectivity
- Multi-function design combining control, monitoring, and signal conditioning
- Robust diagnostics for predictive maintenance and system reliability
- Flexible configuration for standalone or networked turbine control systems
Application Areas
- Steam turbine governor control in power plants
- Gas turbine fuel regulation systems
- Industrial cogeneration facilities
- Integration within distributed control systems (DCS)
- Retrofit upgrades for legacy turbine control panels
FAQ
Q: Can the 9907-331 operate as a standalone turbine controller? A: Yes, it is capable of standalone operation, but it is typically integrated with plant control systems for enhanced monitoring and coordination.
Q: What communication protocol does this module support? A: It supports Modbus RTU via RS-232 and RS-422 interfaces, allowing easy integration with most industrial control systems.
Q: Is this module compatible with older Woodward systems? A: It is primarily designed for the 505/505E series but can be used in retrofit projects depending on system architecture.
