Woodward 8272-684 505 Turbine Control | 100% Original
1.8272-684 Product Overview
Woodward controller speed controller
The Woodward 8272-684 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. 8272-684 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 |
Woodward controller speed controller
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 8272-684 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.
1、 What is a microcontroller?
A microprocessor is a computer. All computers, whether they are personal desktop computers, large computers, or microcontrollers, have many similarities:
All computers have a CPU (Central Processing Unit) for executing programs. If you are sitting in front of a desktop computer reading this article,
the CPU of this computer is currently executing a program, which is a web browser used to display this webpage.
The CPU loads programs from a device. On your desktop computer, browser programs are loaded from the hard drive.
Computers have some RAM (Random Access Memory) used to store “variables”.
In addition, computers also have some input and output devices so that they can exchange information with users. On your desktop computer,
the keyboard and mouse are input devices, while the monitor and printer are output devices. A hard drive is an input/output device – it can both input and output.
The desktop computer you are using is a “general-purpose computer” that can run thousands of various programs. Microcontrollers are specialized
computers used for special purposes. It focuses on doing one thing. Microcontrollers share many common characteristics.
If a computer has most of the following characteristics, then you can call it a “microcontroller”:
Microcontrollers are embedded within other devices (usually consumer products) to control the functionality and operation of the product. Therefore,
microcontrollers are also known as “embedded controllers”.
A microcontroller runs a specific program to accomplish a specialized task. This program is stored in ROM (Read Only Memory) and is generally not modified.
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