Woodward 8280-501 from SAUL ELECTRIC | In Stock
1.8280-501 Product Overview
The Woodward 8280-501 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. 8280-501 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 8280-501 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.
The microcontroller used here is designed specifically for the convenience of daily life. It is a microcontroller developed by Parallax called “BASIC Stamp”.
BASIC Stamp is a PIC microcontroller compatible with the BASIC programming language. The use of BASIC programming language makes software
writing for microcontrollers very easy. The microcontroller comes with a 9-volt battery powered motherboard that can be programmed by connecting it to
a port on the computer. No manufacturer will use BASIC Stamps in their
actual products – because Stamps are expensive and relatively slow. However, using Stamps for experimental modeling or one-time product
demonstrations is very common because its setup and use are incredibly easy.
The microcontroller is called “Stamps” because it is only the size of a postage stamp.
Parallax has produced two versions of BASIC Stamp: BS-1 and BS-2. Here is a comparison of two versions:
Compare project BS-1BS-2
Random Access Memory 14 bytes 26 bytes
Electric erasable read-only memory 256 bytes 2000 bytes
The maximum program length is about 75 instructions and about 600 instructions
Execution speed of 2000 lines per second and 4000 lines per second
Input/output pin 816
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