Woodward 8271-872 from SAUL ELECTRIC | In Stock
1.8271-872 Product Overview
The Woodward 8271-872 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.
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2. 8271-872 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 8271-872 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.
Here are some tools used in microcontroller programming:
Keil uVison
Code Editor
Assembler
C compiler
Burner/Programmer
Keil Uvison：
Keil Uvison is a free software that can solve many of the challenges faced by embedded developers. This software is an integrated development
environment (IDE) that integrates a text editor to write programs, compiler, and convert source code into hexadecimal files.
Keil uVsion software
Guide to using Keil Uvison:
1. Click on the Keil Vision icon on the desktop.
2. Click on the “Project” menu in the title bar
3. Save the project by typing the appropriate project name (without extension) into your own folder in C: or D: .
4. Then click the save button above.
Select the components of the project. Atmel
Click on the+symbol as needed. Atmel was selected for this example.
5. Select AT89C51 as shown below
6. Then click “OK”
7. Then click “Yes” or “No…”, mainly “No”.
Your project is now ready for use.
5437-281 505 Turbine Control | 100% Original,
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