Woodward 9907-1105 | Governor | Controller | Potential Converter
1.9907-1105 Product Overview
The Woodward 9907-1105 belongs to the 505/505E series digital turbine controllers. It is a microprocessor-based control module designed for single-valve steam turbines,
including single extraction/admission systems or split-range actuator configurations.
The controller features a front panel Operator Control Panel (OCP) with a two-line, 24-character display and multi-function keypad, allowing easy on-site configuration and monitoring.
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Email：Mike18350224834@gmail.com
2. 9907-1105 Technical Specifications and Parameters
| Parameter | Details |
|---|---|
| Power Supply | +24 VDC, approx. 1 A |
| I/O Outputs | Discrete Outputs: 8 Analog Outputs: 6 Actuator Outputs: 2 |
| Display / HMI | Two-line, 24-character LCD, with multi-function keypad |
| Dimensions | Approx. 14 × 11 × 4 in (35.6 × 27.9 × 10.2 cm) |
| Weight | Approx. 9.11 lbs (4.13 kg) |
| Operating Temperature | –4 to +140 °F (–20 to +60 °C) |
| Storage Temperature | –40 to +185 °F (–40 to +85 °C) |
| Humidity Standard | 95% RH at 20-55 °C for 48 hours without damage |
| Protection Class | Typically meets industrial dust and water protection standards |
| Communication Protocol | Supports Modbus, RS-232 / RS-422 serial interfaces |
3. Brand History
Woodward, Inc., founded in 1870 and headquartered in Fort Collins, Colorado, USA, is a global leader in energy control systems. The company has a long history of innovation in turbine control, engine management,
and power generation systems.
Woodward products are widely recognized for their reliability and precision in demanding industrial and power generation applications.
4. Applications in Industrial Automation
The 9907-1105 plays a critical role in industrial automation and power generation environments:
- Steam Turbine Control: Manages startup, speed regulation, and extraction/admission control of steam turbines.
- Power Generation Systems: Used in power plants to regulate turbine-driven generators for stable frequency and load management.
- Compressor and Pump Drive Control: Ensures precise speed control for turbine-driven compressors and pumps.
- Process Industry Applications: Applied in chemical plants, refineries, and other industries requiring precise turbine operation.
- Safety and Protection Functions: Includes overspeed protection, critical speed avoidance, actuator travel limits, and event logging for operational safety.
The fire linkage controller can set a delay for specific control output functions, with a maximum delay time of no more than 10 minutes.
During the delay period, the control output can be manually inserted and immediately activated.
7) The fire linkage controller with control function for the gas fire extinguishing system in the pipeline network can display the manual
and automatic working status of the gas fire extinguishing system in the pipeline network; Corresponding fire sound and light alarm control
signals are issued during the alarm and spraying stages of the gas fire extinguishing system.
8) A fire linkage controller with information recording function can record at least 999 relevant information and maintain it for 14 days after the
fire linkage controller is powered off.
9) The fire linkage controller has a fault alarm function. When there is a fault signal in the external connection and controller power supply,
it can emit sound and light fault signals within 100 seconds. Any faulty part does not affect the normal operation of non faulty parts.
10) The fire linkage controller has a self checking function to check the functionality of the machine.
11) The power supply of the fire linkage controller includes a main power supply and a backup power supply conversion device.
When the main power supply is cut off, it can automatically switch to the backup power supply; When the main power supply is restored,
it can automatically switch to the main power supply.
2. Performance
1) Capacity:
The capacity of the fire linkage controller refers to the sum of the number of addressing devices that can be connected to the fire linkage controller
bus and the number of dedicated control circuits. The number of addressing devices that can be connected to the fire linkage controller bus is represented by “M”. Generally,
two related parameters are given, one is the number of bus circuits that the fire linkage controller has, represented by “F”; The other is the number of addressing devices in each bus loop,
represented by “N”. The bus capacity is equal to the number of loops multiplied by the number of addressing devices in each loop, that is, M=F × N.
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