WOODWARD 8200-586

الوصف

The WOODWARD 8200-586 is a Digital Valve Positioner (DVP). This highly advanced electronic device is a crucial component in industrial turbine control systems, providing extremely precise and dynamic control over the position of powerful electric valves and actuators.

WOODWARD 8200-586: Digital Valve Positioner (DVP) – High Output (10kW), SIL-Certified, Ethernet

The WOODWARD 8200-586 DVP is a top-tier driver for electric actuators, distinguished by its combination of very high power output, Safety Integrity Level (SIL) certification, and advanced Ethernet communication capabilities. This makes it ideal for the most demanding and safety-critical applications in large gas and steam turbine control systems.

Product Overview

This particular part number represents a premium, safety-rated, and networked configuration within Woodward’s DVP series, optimized for maximum power delivery and adherence to stringent safety standards.

• Product Type: Digital Valve Positioner (DVP) / Electric Actuator Driver – High Output, SIL-Certified, Ethernet
• Manufacturer: Woodward
• Part Number: 8200-586
• Key Specifications:
  • Input Power: 24 VDC (typically 18–36 VDC).
  • Output Power: This is a crucial distinguishing feature. The 8200-586 is a 10 kW High Output DVP. This means it can supply up to 10 kilowatts of power to operate extremely demanding electric actuators, making it suitable for the largest control valves found in heavy industrial machinery.
  • Safety Integrity Level (SIL) Certification: This is a defining characteristic. The 8200-586 is SIL-certified, indicating it is designed and validated for use in Safety Instrumented Functions (SIF) where a specific level of risk reduction is required. This often implies redundant components, extensive self-diagnostics, and robust fault tolerance to ensure high reliability in safety-critical applications.
  • Ingress Protection (IP) Rating: Typically IP30. This means it’s protected against solid objects larger than 2.5 mm, but it has no protection against water. Therefore, it’s 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 includes Ethernet communication (likely supporting Ethernet Global Data, EGD). This provides advanced, high-speed connectivity to plant Distributed Control Systems (DCS), remote monitoring, and diagnostic tools.
  • 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 8200-586 DVP receives a demand signal from a turbine or plant control system (e.g., a Woodward MicroNet or 505 controller, often via Ethernet). It then processes this signal in real-time, integrating it with high-resolution position feedback from the actuator, to precisely drive the valve to the commanded position with immense power. Its powerful internal controller utilizes advanced algorithms (such as PID and adaptive OptiTune) to ensure rapid, accurate, and stable valve control. This is essential for maintaining turbine stability, efficiency, and safety, especially in applications where very large, fast-acting, and safety-critical valves are required, with the added benefit of network integration.

Detailed Product Description

The Woodward 8200-586 Digital Valve Positioner (High Output, SIL-Certified, Ethernet) is a robust and exceptionally capable driver, engineered for the most demanding, safety-critical, and networked control applications that require significant electrical power for valve actuation.

• Exceptional Power Output (10 kW): This DVP’s standout feature is its ability to deliver a massive 10 kW of power to the connected actuator. This makes it ideally suited for driving the largest and heaviest electric valves that demand substantial force for precise and rapid movement, crucial in large-scale power generation or industrial processes.
• SIL-Certified for Safety Applications: The SIL certification signifies that this DVP has been rigorously designed, tested, and validated to meet specific safety integrity requirements. This makes it suitable for deployment as part of a safety instrumented system (SIS) to reduce the risk of hazardous events, providing an additional layer of protection in critical operations.
• High-Speed, Accurate Control: It incorporates advanced control algorithms and high-speed processing to accurately and quickly position valves, even under challenging dynamic conditions. This responsiveness is critical for maintaining stability during rapid load changes and precise regulation.
• Integrated Control Architecture: Built upon Woodward’s cutting-edge control architecture, it provides reliable and efficient control for their range of electric motor-driven valves and actuators, specifically designed for 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 come with an integrated “ID module.” When connected to the 8200-586 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.
• Ethernet Communication for Advanced Integration: The inclusion of Ethernet (EGD) provides a modern, high-speed interface for seamless integration into plant-wide control networks. This facilitates remote diagnostics, monitoring, and control, enhancing overall system management and enabling more sophisticated, data-driven control strategies.
• Robust and Reliable Design: Despite its sophisticated internal electronics, the DVP is built for durability in industrial environments. Its IP30 rating means it should be installed within protected enclosures to ensure long-term reliability.

Technical Specifications (for the 8200-586 DVP)

Typical Applications

The WOODWARD 8200-586 Digital Valve Positioner is a core component in:

• Very Large Gas Turbine Fuel Control Systems: Precisely positioning the largest gas fuel metering valves in high-power generation applications, especially when these valves are part of a safety instrumented function and require seamless network integration.
• Large Steam Turbine Valve Actuation: Driving significant steam admission, extraction, or bypass valves for speed, load, and pressure control in large steam power plants, particularly when these actions are safety-critical and require SIL compliance and robust networked communication.
• Heavy-Duty, Safety-Critical, Networked Industrial Process Control: Any industrial application requiring the highly accurate, dynamic positioning of exceptionally large or powerful valves or motors where adherence to Safety Integrity Levels is mandated and Ethernet connectivity is desired for advanced control and monitoring.