The Woodward 9907-167 is a sophisticated digital governor and operator interface module designed for the precise control of industrial steam turbines. Part of the renowned Woodward 505 series, this unit combines powerful microprocessor-based logic with a localized HMI (Human Machine Interface). It is engineered to manage turbine speed, load, and complex valve positioning using advanced PID algorithms. The 9907-167 is an essential component for ensuring stable turbine operation in power generation, petrochemical processing, and heavy manufacturing.
Designed for the rigors of turbine control rooms, the 9907-167 provides a rugged hardware platform that operates reliably across an extended temperature range. The integrated keypad and high-visibility LCD allow plant operators to adjust parameters, monitor system health, and perform local configuration without the immediate need for external software. Safety is prioritized through built-in mechanisms including critical speed avoidance, emergency shutdown logic, and valve limit enforcement. Its panel-mount design allows for seamless installation into standard turbine control cabinets, providing a clear window into machinery performance.
| Feature | Specification Details |
| Manufacturer | Woodward |
| Model Number | 9907-167 |
| Series | Woodward 505 |
| Product Type | Digital Governor / Operator Interface |
| Input Power | +24 VDC Nominal (18–32 VDC range) |
| Processor Type | 505 Series Microprocessor-based |
| Control Mode | Advanced PID (Isochronous, Droop, Load Sharing) |
| User Interface | Integrated 30-key tactile keypad and LCD display |
| Communication | RS-232, RS-485, Modbus RTU Protocols |
| Operating Temp | –40 °C to +70 °C (–40 °F to +158 °F) |
| Protection Features | Overspeed, Overheat, Critical Speed Avoidance |
| Installation | Panel Mounted |
| Compliance | CE, UL, IEC Standards |
| Weight | 6.00 lbs (2.72 kg) |
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