Woodward 5461-775 |CPU Module, Origin: United States
1.5461-775 Product Overview
The Woodward 5461-775 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. 5461-775 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 5461-775 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.
Is a controller a chip? The relationship between microcontrollers and chips. The difference between microcontrollers and microprocessors
Is a microcontroller a chip
Yes, a microcontroller, also commonly known as a Single Chip Microcontroller (SCM), is a chip that integrates functional modules such
as a microprocessor, memory, input/output interfaces, and timer. Therefore, microcontrollers are essentially
a type of chip. Compared with general integrated circuits (ICs), microcontrollers are more integrated and fully functional,
capable of independently completing various control tasks and have broad application prospects.
The role of microcontroller
A microcontroller is a chip that integrates functional modules such as a microprocessor, memory,
input/output interface, and timer. Its functions mainly include the following aspects:
Control: Microcontrollers have flexible control capabilities and can achieve various control tasks such as temperature
control, motor control, light control, etc. through internal processors and input/output interfaces.
Data processing: Microcontrollers have strong data processing capabilities and can process and operate various data,
such as numerical calculations, data statistics, image processing, etc., through internal processors and memory modules.
Communication: Microcontrollers can communicate with other devices through internal modules such as serial ports,
parallel ports, and network interfaces, such as serial communication, Ethernet communication, etc.
Timing: The microcontroller integrates a timer module internally, which can achieve various timing tasks such as timing
measurement, cycle control, timing processing, etc. by setting timer parameters and timer interrupts.
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