Woodward 9905-003 Price Discount | In Stock
1.9905-003 Product Overview
The Woodward 9905-003 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.
2. 9905-003 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 9905-003 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.
How to match the controller with the motor
A controller is an electronic device used to control the operation of a motor. It is a central processing unit that can control the speed,
steering, acceleration and other parameters of motors by receiving sensor signals and user inputs, in order to achieve motion control of robots,
electric vehicles, drones and other devices.
The matching between the controller and the motor is very important. When choosing a controller, the following factors need to be considered:
1. Motor type: Different types of motors require different controllers. For example, a DC motor requires a DC motor controller,
while a stepper motor requires a stepper motor controller.
2. Motor power: The controller needs to be able to withstand the power of the motor, otherwise it may cause damage to the controller.
3. Control mode: The controller needs to support the required control modes, such as PWM, serial port, CAN, etc.
4. Control accuracy: The controller needs to have sufficient control accuracy to achieve precise motion control.
5. Communication protocol: The controller needs to support the required communication protocols, such as Modbus, CANopen, etc.
6. Software development: The controller needs to have a corresponding software development platform so that users
can write programs to achieve more advanced control functions.
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