Core Function in Steam Turbine Management
The Woodward 9907-163 is a microprocessor-based control unit from the legacy 505/505E series. This component manages one or two split-stage actuators to precisely control steam inlet valves. It processes all critical turbine operational parameters as a dedicated governor unit. Consequently, it is also suitable for controlling similar devices like turbo-generators and expanders.
Key Hardware and Environmental Features
This unit features a robust NEMA 4X enclosure for protection against water and dust ingress. It includes a 24-character LED display and a 30-key keypad for local interface. An integrated emergency stop button provides a critical safety function for immediate shutdown. Furthermore, its Class 1 Division 2 rating allows installation in defined hazardous locations.
Comprehensive Technical Specifications
Designed for industrial reliability, the Woodward 9907-163 operates within a wide temperature range. Its modular design incorporates protected printed circuit boards within a sturdy frame. The following table details its physical, electrical, and interface parameters.
| Parameter | Specification |
|---|---|
| Manufacturer / Series | Woodward / 505 & 505E Series |
| Product Model | 9907-163 |
| Primary Function | Steam Turbine Governor Control Unit |
| Controlled Device | Split-Stage Actuator(s) |
| Input Voltage | 24 V DC |
| Analog Inputs | 6 Programmable Current Inputs |
| Discrete Inputs | 16 Contact Inputs |
| Keypad/Display | 30 Keys, 24-char LED |
| Communication Port | RS232C / RS422 Serial Port |
| Enclosure Rating | NEMA Type 4X |
| Hazardous Location | Class 1 Div 2 Rated |
| Dimensions (W x H x D) | 14 in x 11 in x 4 in |
| Weight | 9 lbs (approx. 4.08 kg) |
| Safety Feature | Emergency Stop Button |
| Core Technology | Microprocessor-Based |
| Software | OpviewM, S05View |
Installation and Operational Notes
Mount the unit in a location that respects its ambient temperature limits for optimal lifespan. The optional NEMA 4X protective frame reduces the maximum allowable ambient temperature. Always use the Woodward 9907-163 with compatible 505 series software for configuration and monitoring. This control unit remains a cornerstone for the reliable and safe operation of legacy steam turbine systems.
Details
| Weight | 4.08 kg |
|---|---|
| Dimensions | 14 × 11 × 4 mm |
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