WOODWARD 8200-538

الوصف

The WOODWARD 8200-538 is a Digital Valve Positioner (DVP) within Woodward’s high-output series. This sophisticated electronic device is designed for highly precise and dynamic control of large, powerful valves and actuators in industrial turbine and process control applications.

WOODWARD 8200-538: Digital Valve Positioner (DVP) – High Output (5kW)

The WOODWARD 8200-538 DVP serves as a critical interface in control systems, translating electrical command signals into precise physical movements of heavy-duty fuel, steam, or other process control valves. Its “High Output” designation specifically points to its capability to drive larger actuators requiring substantial power.

Product Overview

This particular part number represents a specialized configuration within Woodward’s DVP product line, engineered for robust performance and high-power delivery.

• Product Type: Digital Valve Positioner (DVP) / Electric Actuator Driver – High Output
• Manufacturer: Woodward
• Part Number: 8200-538
• Key Specifications:
  • Input Power: 24 VDC.
  • Output Power: This is a defining characteristic. The 8200-538 is specifically identified as a 5 kW High Output DVP. This means it can supply up to 5 kilowatts of power to operate demanding electric actuators.
  • Ingress Protection (IP) Rating: Often associated with IP30. This indicates protection against solid objects larger than 2.5 mm, but no protection against water. It is therefore designed for installation inside a control cabinet or a well-protected enclosure.
  • Input/Output Connections: Features Terminal Block (TB) Input/Output. All electrical connections for control signals, power, and feedback are made via screw terminals.
  • Communication: This specific variant (8200-538) is listed as No Ethernet, indicating that its primary control signal interface is likely analog (e.g., 4–20 mA, 0–5 VDC) or CANopen, rather than Ethernet Global Data (EGD).
  • Safety Integrity Level (SIL): This model is listed as Non-SIL, meaning it’s designed for high-reliability control functions but is not certified for safety instrumented functions where SIL compliance is required as the primary protection layer.
  • Motor Types: Compatible with Woodward’s Limited Angle Torque (LAT) and Brushless DC (BLDC) motor types, which are integral to their high-performance valves and actuators.
  • Position Feedback: Relies on resolver feedback from the valve or actuator for highly accurate and continuous position monitoring.
• Function: The 8200-538 DVP receives a demand signal from a turbine or plant control system (e.g., a Woodward MicroNet or 505 controller). It then processes this signal in real-time, combining it with high-resolution position feedback from the actuator, to precisely drive the valve to the commanded position. Its powerful internal controller utilizes advanced algorithms (such as PID and adaptive OptiTune) to ensure rapid, accurate, and stable valve control, which is essential for maintaining turbine stability, efficiency, and safety during all operating conditions.

Detailed Product Description

The Woodward 8200-538 Digital Valve Positioner (High Output) is a robust and highly capable driver tailored for applications that demand significant electrical power for valve actuation.

• Exceptional Power Output (5kW): This DVP’s primary strength lies in its ability to deliver up to 5 kW of power, making it suitable for driving larger, more robust electric valves and actuators that require substantial force or rapid movement for precise flow control.
• High-Speed, Accurate Control: It incorporates advanced control algorithms and high-speed processing to accurately and quickly position valves. This dynamic response is crucial for stable turbine operation, especially during transients like load changes and rapid startups, where very tight control is necessary.
• Integrated Control Architecture: Built on Woodward’s latest control architecture, it provides reliable and efficient control for their range of electric motor-driven valves and actuators, including both LAT and BLDC motor types.
• Resolver Feedback for Precision: By utilizing resolver feedback from the connected valve or actuator, the DVP establishes a highly accurate closed-loop control system, ensuring precise positioning, excellent repeatability, and minimal overshoot.
• ID Module Compatibility for Simplified Setup: Many newer Woodward valves and actuators include an “ID module.” When connected to the 8200-538 DVP, it can automatically read critical, valve-specific configuration information. This “plug-and-play” capability significantly simplifies installation, setup, and commissioning, reducing manual configuration errors.
• Terminal Block Connections: The use of terminal blocks for all electrical connections offers a secure and flexible wiring interface, allowing for straightforward integration into control panels and existing wiring infrastructures.
• Robust and Reliable Design: Despite its sophisticated internal electronics, the DVP is built for durability in industrial environments. Its IP30 rating guides its installation within protected enclosures to ensure long-term reliability.

Technical Specifications (for the 8200-538 DVP)

Typical Applications

The WOODWARD 8200-538 Digital Valve Positioner is a core component in:

• Large Gas Turbine Fuel Control Systems: Precisely positioning high-flow gas fuel metering valves in power generation and industrial gas compression applications.
• Large Steam Turbine Valve Actuation: Driving significant steam admission, extraction, or bypass valves for speed, load, and pressure control where substantial force and precise positioning are critical.
• High-Power Industrial Process Control: Any industrial application requiring the highly accurate, dynamic positioning of large valves or motors based on electronic demand signals, especially where high power output is a prerequisite.