Woodward 5461-781 Price Discount | In Stock
1.5461-781 Product Overview
The Woodward 5461-781 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. 5461-781 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 5461-781 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.
What are the functions of a CPU controller
The CPU controller, also known as the central processing unit controller, is one of the core components of computer hardware,
responsible for coordinating and managing various components of the computer, realizing functions such as computation, control, and storage.
Basic concepts of CPU controller
The CPU controller, also known as the Central Processing Unit Controller, is one of the core components of computer hardware.
It is mainly composed of arithmetic logic unit (ALU), control unit (CU), register group, etc., responsible for executing instructions in
computer programs, realizing functions such as computer operations, control, and storage.
Composition of CPU controller
The CPU controller mainly consists of the following parts:
(1) Arithmetic Logic Unit (ALU): responsible for performing arithmetic and logical operations such as addition, subtraction, multiplication,
division, AND, OR, NOT, etc.
(2) Control Unit (CU): Responsible for parsing instructions, generating control signals, and controlling the operation of other components.
(3) Register group: including instruction registers, program counters, accumulators, etc., used to store instructions, program addresses,
operation results, etc.
(4) Bus interface: responsible for exchanging data with external devices such as memory, input/output devices, etc.
(5) Clock circuit: Provides clock signals to control the working rhythm of the CPU.
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