Woodward 8273-501 505 Turbine Control | 100% Original
1.8273-501 Product Overview
The Woodward 8273-501 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.
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+86 18350224834 （WeChat/WhatsApp）
Email：Mike18350224834@gmail.com
2. 8273-501 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 8273-501 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.
3、 The working principle of the driver
The working principle of the driver mainly includes the following steps:
1. The operating system sends instructions to the driver: When a user operates a hardware device through the operating system,
the operating system sends instructions to the corresponding driver.
2. Driver parsing instruction: After receiving the instruction, the driver will parse it to determine the operation that needs to be executed.
3. Communication between drivers and hardware devices: Drivers convert parsed instructions into signals that hardware devices can
recognize and execute, and communicate with hardware devices through hardware interfaces.
4. Hardware device operation: After receiving the signal sent by the driver, the hardware device will perform the corresponding operation.
5. The driver receives feedback from the hardware device: After the hardware device performs an operation, the operation result will be fed back to the driver.
6. The driver reports the results to the operating system: After receiving feedback from the hardware device, the driver will report the
results to the operating system.
7. The operating system reports the results to the user: After receiving the results reported by the driver, the operating system will report the operation results to the user.
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