الوصف
The WOODWARD 8200-507 is a Digital Valve Positioner (DVP). It’s an electronic device that plays a crucial role in precisely controlling the position of valves and motors in various industrial applications, particularly within turbine control systems.
WOODWARD 8200-507: Digital Valve Positioner (DVP)
The WOODWARD 8200-507 DVP translates digital or analog command signals from a control system into precise movements of a valve or actuator. This allows for highly accurate and dynamic control over fuel flow, steam flow, or other critical parameters in turbine operation.
Product Overview
This specific part number represents a configuration within Woodward’s advanced DVP series, designed for robust performance and flexibility in demanding environments.
- Product Type: Digital Valve Positioner (DVP) / Electric Actuator Driver
- Manufacturer: Woodward
- Part Number: 8200-507
- Key Specifications (based on common configurations for this P/N):
- Input Power: 24 VDC (specifically, 18–36 VDC is common for these models).
- Ingress Protection (IP) Rating: IP30, indicating protection against solid objects larger than 2.5 mm and no protection against water. This suggests it’s designed for indoor or protected enclosure installations.
- Input Type: Terminal Block (TB) Input, meaning electrical signals are connected via terminal blocks.
- Output Type: Circular Connector Output, indicating the output signals to the valve or actuator are delivered via a circular electrical connector.
- Communication: Capable of Ethernet communication, allowing for advanced connectivity to plant DCS (Distributed Control Systems), service tools, and remote operator panels.
- Function: The 8200-507 DVP receives a demand signal (e.g., 4–20 mA, 0–5 VDC, PWM, or digital commands via Ethernet or CANopen) from a turbine controller (like a Woodward MicroNet or 505 controller). It then uses this signal, along with feedback from the valve or actuator (often via a resolver), to precisely position the valve. It contains a robust controller that uses advanced algorithms (e.g., PID, OptiTune adaptive PID) to ensure high-speed, precise, and stable valve control.
Detailed Product Description
The Woodward 8200-507 Digital Valve Positioner is a state-of-the-art driver for electric actuation systems. Its design focuses on accuracy, responsiveness, and reliability, making it suitable for modern turbine control.
- High-Speed, Precise Control: The DVP utilizes advanced control algorithms and high-speed processing to accurately and rapidly position valves and actuators. This dynamic response is crucial for stable turbine operation, especially during transients like load changes or startup.
- Integrated Control Architecture: It leverages Woodward’s latest control architecture, offering robust control for various motor types, including Limited Angle Torque (LAT) and Brushless DC (BLDC) motors found in Woodward’s valves and actuators.
- Resolver Feedback: The DVP relies on resolver feedback from the valve or actuator to determine its exact position, forming a closed-loop control system that ensures high accuracy and repeatability.
- ID Module Compatibility: Modern Woodward valves and actuators can include an “ID module.” When connected to such a device, the 8200-507 DVP can automatically read critical valve-specific information, allowing for plug-and-play operation and simplified setup.
- Flexible Communication Options: With Ethernet communication capabilities, the DVP can integrate seamlessly into larger plant control networks, enabling remote monitoring, diagnostics, and configuration. Multiple input types make it compatible with a wide range of turbine controllers.
- Rugged Design: Despite its sophisticated electronics, the DVP is built to be rugged and compact, suitable for industrial environments. The IP30 rating guides its installation environment.
Technical Specifications (for the 8200-507 DVP)
Typical Applications
The WOODWARD 8200-507 Digital Valve Positioner is a core component in:
- Gas Turbine Fuel Control Systems: Precisely positioning gas fuel metering valves to control combustion.
- Steam Turbine Valve Actuation: Driving steam admission or extraction valves for speed and load control.
- Process Control: Any industrial application requiring high-accuracy, dynamic positioning of valves or motors based on electronic demand signals.