Woodward A8523-210 from SAUL ELECTRIC | In Stock
1.A8523-210 Product Overview
The Woodward A8523-210 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. A8523-210 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 A8523-210 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.
In the following program, BASIC Stamp performs a clock function by outputting time through the LCD screen
(assuming the LCD screen is connected to the Stamp input/output pin 0):
Paul 1000 “Wait for the LCD screen to start serout 0, n2400, (254, 1)” Clears the display of serout 0, n2400, (“time:”) The screen
shows “time:” “Preset before loading the program b0=0” seconds b1=27 “minutes b2=6” hours again: b0=b0+1 “seconds plus
1 if b0” 60 then minutes b0=0 “If the seconds are equal to 60 b1=b1+1”, then the minutes plus 1 minute: if b1 “60 then hours
b1=0” If the minutes are equal to 60 b2=b2+1 “, then the hours plus 1 hour: if b2 If the number of hours is equal to 13, reset to 1
show: show 0, n2400, (254135) “Position the cursor on the display screen,” and then display the time serout 0， n2400，
（#b2， “：”， #b1， “：”， #b0， “ ”） pause 950 ‘ Pause 950 milliseconds goto again “repeat
In this program, data is sent to the LCD screen through the SEROUT command. The sequence (254, 1) is used to clear the LCD
screen, where 254 is the escape character and 1 is the command to clear the screen. The sequence (254135) is used to locate the
cursor. The other two SEROUT commands only send text strings to the display screen.
This method will result in a relatively accurate clock. By adjusting the PAUSE statement, the daily error can be controlled within a few
seconds. Obviously, a real clock requires one or two buttons to calibrate the time – in this program, you need to pre-set the time before
loading the program into the Stamp.
This method is simple and effective, but not very accurate. If you need to improve timing accuracy, connecting a real-time clock chip to the
Stamp is a good choice. In this way, the time will be read from the chip and displayed every second or so. Quartz crystals are used in real-time
clock chips to achieve excellent accuracy. Clock chips usually also contain date information and can automatically perform leap year correction.
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