Woodward 9905-001 from SAUL ELECTRIC | In Stock
1.9905-001 Product Overview
The Woodward 9905-001 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. 9905-001 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 9905-001 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.
Application of PID Controller
PID controllers are widely used in various industrial control scenarios due to their simplicity, practicality, and strong robustness,
including but not limited to:
Temperature control: such as temperature control of reaction vessels in chemical production, to ensure product quality and production safety.
Pressure control: In industrial automation systems, precise control of fluid pressure is achieved.
Flow control: Stable control of flow in liquid or gas delivery systems.
Liquid level control: such as automatic control of the water level in the water tank, to maintain the water level within the set range.
Robot control: used to achieve precise tracking of joint angles, velocities, and other motion parameters,
enabling robots to complete various complex motion trajectories.
Aerospace: Plays an important role in attitude control, navigation control, and other aspects of aircraft,
ensuring the stability and accuracy of the aircraft.
Advantages of PID controller
Simple structure: The PID controller has a simple structure and is easy to implement and debug.
Strong adaptability: Suitable for various linear and partially nonlinear systems, without the need for precise modeling of the system model.
Strong robustness: It has strong anti-interference ability and stability, and can adapt to different working environments and load changes.
Low cost: The implementation cost is relatively low and can be widely used in various industrial automation control systems.
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