Description
| Parameter | Specification |
| Product Model | WOODWARD 9907-1183 |
| Control Series | 505 Digital Governor |
| Application | Single Extraction/Admission Steam Turbine |
| Input Power | 18-32 V DC |
| Analog Inputs | 4-20 mA / 0-5 V DC (Configurable) |
| Actuator Outputs | 4-20 mA (Dual Channel) |
| Communication | Dual RS-232 / RS-485 Modbus |
| Enclosure Rating | NEMA 4X (Front Panel) |
| Operating Temp | -25 to +65°C |
The WOODWARD 9907-1183 is a microprocessor-based digital control system designed for the precise operation of steam turbines using single or split-range actuators. This 505-series controller provides a comprehensive suite of turbine-specific algorithms, including speed control, extraction pressure regulation, and inlet header pressure limiting. It features an integrated operator interface panel with a vacuum fluorescent display, allowing for real-time monitoring of turbine parameters and field-configurable PID tuning without the need for external handheld devices.

WOODWARD 9907-1183

WOODWARD 9907-1183

WOODWARD 9907-1183
Model Comparisons
The 9907-1183 is primarily distinguished from the 9907-164 by its power supply and specialized firmware for extraction control. While the 9907-164 is often used for simpler generator-drive or mechanical-drive turbines, the 1183 variant includes enhanced logic for complex steam management. Furthermore, compared to the newer 505D (8200-1300) series, the 9907-1183 utilizes a traditional tactile keypad interface and legacy Modbus mapping, making it the direct drop-in replacement for aging Woodward installations where maintaining existing panel cutouts and communication registers is critical.
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