Description
🔹 Product Description
The WOODWARD 9907-1182 505 Enhanced Digital Governor Controller is an advanced turbine control unit designed for steam turbine speed regulation, load control, extraction/admission control, and protection applications. It belongs to the Woodward 505 Enhanced Digital Control Series, providing programmable control functions for single and split-range actuator steam turbine systems.
The 9907-1182 model is the AC/DC power supply version of the 505 Enhanced series, supporting 88–132 VAC or 90–150 VDC input power. It integrates turbine governing, operator interface, monitoring, and control logic into one compact controller, making it suitable for industrial steam turbine generator sets and mechanical drive applications.
This controller is commonly used in power generation plants, process industries, compressors, pumps, and other turbine-driven equipment requiring precise speed and load management. It supports configuration through built-in operator controls and can interface with external automation systems.
⚙️ Product Features
🔹 Woodward 505 Enhanced Digital Governor Controller.
🔹 Model number: 9907-1182.
🔹 Supports AC/DC universal power input.
🔹 Designed for steam turbine governing applications.
🔹 Extraction and admission turbine control capability.
🔹 Built-in LED operator display interface.
🔹 Programmable speed, load, and valve control.
🔹 Supports redundant control functions.
🔹 Suitable for industrial turbine automation systems.
🔹 Designed for replacement and retrofit applications.
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | WOODWARD |
| Model | 9907-1182 |
| Series | 505 Enhanced Digital Governor |
| Product Name | Steam Turbine Digital Governor Controller |
| Product Type | Turbine Control Unit |
| Application | Steam Turbine Speed & Load Control |
| Power Supply | 88–132 VAC / 90–150 VDC |
| Frequency Range | 47–63 Hz |
| Display Type | LED Operator Interface |
| Weight | Approx. 3.6 kg |
🔧 Application
The Woodward 9907-1182 is designed for turbine control systems requiring accurate and programmable operation.
Typical applications include:
⚡ Steam turbine generator control
🏭 Industrial power plants
🛢 Oil and gas process equipment
⚙️ Compressor turbine drives
💧 Pump and blower turbine systems
🏗 Process automation systems
The controller manages important turbine functions including:
🔹 Speed regulation
🔹 Load sharing
🔹 Valve position control
🔹 Extraction pressure control
🔹 Admission control
🔹 Turbine alarm monitoring
🔌 System Integration
The 505 Enhanced Digital Governor connects with turbine field equipment and plant automation systems through configurable I/O interfaces.
Typical system connections include:
🔹 Speed sensors
🔹 Actuator control outputs
🔹 Pressure transmitters
🔹 Load feedback signals
🔹 Emergency shutdown circuits
🔹 DCS communication interfaces
Before installation, verify:
🔹 Turbine model and application
🔹 Actuator type
🔹 Power input voltage
🔹 Existing configuration parameters
🔹 Firmware compatibility
🔹 Control wiring
Correct parameter configuration is required to achieve stable turbine operation.
❓ FAQ
Q1: What is the WOODWARD 9907-1182?
A1: It is a 505 Enhanced Digital Governor Controller used for steam turbine speed, load, and valve control applications.
Q2: What power supply does 9907-1182 use?
A2: The unit supports 88–132 VAC or 90–150 VDC power input.
Q3: Is 9907-1182 a PLC CPU module?
A3: No. It is a dedicated turbine control governor designed for steam turbine automation.
Q4: What turbines can this controller operate with?
A4: It is designed for steam turbines using single or split-range actuators, including extraction and admission applications.
Q5: Does it support DCS integration?
A5: Yes. It can exchange control and monitoring signals with plant automation systems through configured interfaces.
Q6: What is the difference between 9907-1182 and 9907-1183?
A6: The 9907-1182 uses AC/DC power input, while 9907-1183 is the LVDC version designed for lower DC voltage applications.
Q7: What should be checked before replacement?
A7: Verify turbine configuration, actuator compatibility, power supply, wiring, and stored application parameters.
Q8: Is the Woodward 505 Enhanced still used in industry?
A8: Yes. The 505 series continues to be used in turbine control and retrofit projects worldwide.
⭐ Recommended WOODWARD Models
- 8200-1310 – 505XT LV-STD Digital Turbine Controller.
- 8200-1311 – 505XT HV-STD AC/DC Controller.
- 9907-1181 – 505 Enhanced HVAC Digital Governor.
- 9907-1183 – 505 Enhanced LVDC Digital Governor.
- 9907-838 – Woodward 505 Digital Governor Controller.
- 9905-867 – Woodward 505 Speed Control Unit.
- 9907-028 – Woodward Digital Governor Controller.
- 9907-810 – Woodward 505 Turbine Control Unit.
- 2301A – Load Sharing and Speed Control Unit.
- ProTech 203 Digital Overspeed Protection System – Turbine Safety Controller.
🛠️ Installation Note
Always confirm the complete part number WOODWARD 9907-1182 before replacement. Check turbine type, actuator configuration, input power requirements, communication settings, and application parameters to ensure correct integration with the existing turbine control system.
