Woodward 8272-242 from SAUL ELECTRIC | In Stock
1.8272-242 Product Overview
The Woodward 8272-242 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.
contacts： Mike
+86 18350224834 （WeChat/WhatsApp）
Email：Mike18350224834@gmail.com
2. 8272-242 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 8272-242 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.
Creating a digital clock
Spending $79 to make an LED light up seems a bit luxurious. You would definitely prefer to use BASIC Stamp to create something
more practical. For over 100 dollars, you can make an exquisite digital clock! This may seem too luxurious, but in the future when
making various other devices, you will find that these components can be reused.
We will use the input and output pins of BASIC Stamp to display numbers. In the digital clock section, we learned how to connect the
7-segment display LED of the 7447 chip. The 7447 chip can work in conjunction with BASIC Stamp. By directly connecting the four input
and output pins of BASIC Stamp to 7447, it is easy to display numbers from 0 to 9. The BS-1 version of Stamp has 8 input/output pins, which can directly drive two 7447 chips.
For a clock, at least 4 digits need to be displayed. In order to drive 4 pieces of 7447 with 8 input/output pins, we need to be more creative.
The following figure provides a solution:
In the above figure, 8 input and output pins are introduced from the left. This method uses four input and output pins to drive all four 7447s.
The remaining 4 pins are used to activate 4 pieces of 7447 in sequence (the “E” on the chip represents “Enable Enable” – pin 5 on the 7447 chip).
To make this system work, the Stamp program first sends out the first number through four data lines and sets the E pin of the first 7447 to the first
control line, thereby activating 7447. Then issue the second number to activate the second piece 7447, and repeat the activation of the four pieces
7447 in sequence. In fact, with a slight modification of the wiring, a single 7447 can achieve these
functions. By using the 74154 multiplexer chip and some drivers, up to 16 digits can be driven using this method.
This is the standard method for controlling LED display screens in practice. If you have an old-fashioned LED display calculator, observe the
display screen while shaking it. You will find that only one number is lit up at the same time. This technology is called multiplex display.
Click to learn more about Woodward”s products
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