Woodward 8924-574 Price Discount | In Stock
1.8924-574 Product Overview
The Woodward 8924-574 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. 8924-574 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 8924-574 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.
When TFT is upgraded to high resolution
Let”s consider upgrading the resolution of the color TFT LCD from QVGA to VGA (640×480 pixels). As mentioned earlier, for a full-color
QVGA panel, the data size of one image is 230400 bytes. Similarly, for WVGA panels: 640x480x24 bits=307200×24 bits=921600 bytes.
This means that WVGA requires four times the data capacity of QVGA. Improving display resolution also increases the required memory
capacity and processing requirements, similar to the challenges faced when transitioning from monochrome to color.
In both cases, whether converting to color or upgrading to higher resolution, introducing an Epson LCD controller can achieve these enhancements
without replacing the existing CPU. This method effectively manages the increased demand for memory capacity and performance
while utilizing the current hardware settings.
Types of Epson LCD controllers
SRAM integrated products
These products include built-in memory (up to 1024KB) and support LCD displays with resolutions up to WVGA (480×800).
External SDRAM integrated products
Products that support high-resolution displays up to XGA (1024×768) require external memory to operate.
Simple LCDC
This product line has the basic functions of LCDC and is designed specifically for low cost and low power consumption.
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