WOODWARD 8200-504

الوصف

The WOODWARD 8200-504 is a Digital Valve Positioner (DVP), specifically designed for high-power output applications in industrial turbine control systems. It’s a robust electronic device that provides precise and dynamic control over the position of large valves and actuators.

WOODWARD 8200-504: Digital Valve Positioner (DVP) – High Output

The WOODWARD 8200-504 DVP acts as a sophisticated driver, translating command signals from a turbine’s main control system into exact physical movements of the connected fuel, steam, or other critical flow control components. Its “High Output” designation indicates it’s capable of driving more powerful electric actuators, often found in larger turbine applications.

Product Overview

This particular part number represents a specialized configuration within Woodward’s DVP series, optimized for applications requiring significant power output and robust performance.

• Product Type: Digital Valve Positioner (DVP) / Electric Actuator Driver – High Output
• Manufacturer: Woodward
• Part Number: 8200-504
• Key Specifications (based on Woodward’s documentation for High Output DVP series):
  • Input Power: 24 VDC.
  • Output Power: This is a key distinguishing feature. The 8200-504 is part of a series that includes 5kW and 10kW output capabilities. For this specific part number (8200-504), it’s identified as a High Output DVP, 5kW. This means it can drive electric actuators requiring up to 5 kilowatts of power.
  • Ingress Protection (IP) Rating: Often associated with IP66, indicating robust protection against dust ingress and powerful jets of water. This makes it suitable for direct installation in more exposed or harsh industrial environments.
  • Input/Output Connections: Typically features Terminal Block (TB) Input/Output and can also include Ethernet communication.
  • Communication: Capable of Ethernet (EGD – Ethernet Global Data) communication, allowing for advanced connectivity to plant DCS (Distributed Control Systems), service tools, and remote operator panels.
  • Motor Types: Compatible with Woodward’s Limited Angle Torque (LAT) and Brushless DC (BLDC) motor types, common in their high-performance valves and actuators.
  • Position Feedback: Utilizes resolver feedback for highly accurate valve position monitoring.
• Function: The 8200-504 DVP receives a demand signal (e.g., from a Woodward MicroNet or 505 controller via analog input or Ethernet). It then processes this signal, along with high-resolution position feedback from the valve or actuator, to precisely drive the valve to the commanded position. Its internal controller uses advanced algorithms (like PID and adaptive OptiTune) to provide fast, accurate, and stable valve control, which is essential for stable turbine operation during various conditions, including startup, load changes, and shutdown.

Detailed Product Description

The Woodward 8200-504 Digital Valve Positioner (High Output) is a state-of-the-art driver specifically designed for demanding applications requiring significant power to actuate control valves. Its design prioritizes accuracy, responsiveness, and reliability for critical turbine control.

• High Power Output (5kW): This DVP stands out due to its ability to deliver a substantial 5kW of power to the connected actuator, making it suitable for larger, more robust valves that require higher forces or faster movements.
• High-Speed, Precise Control: It leverages advanced control algorithms and high-speed processing to accurately and rapidly position valves and actuators. This dynamic response is crucial for maintaining turbine stability and performance, especially during rapid changes in operating conditions and in applications demanding very tight control.
• Integrated Control Architecture: It incorporates Woodward’s latest control architecture, providing robust and efficient control for their various electric motor-driven valves and actuators, including both LAT and BLDC motor types.
• Resolver Feedback for Enhanced Accuracy: By using resolver feedback from the connected valve or actuator, the DVP establishes a highly accurate closed-loop control system, ensuring precise positioning, high repeatability, and minimal overshoot.
• ID Module Compatibility for Plug-and-Play: Many newer Woodward valves and actuators are equipped with an “ID module.” When connected to the 8200-504 DVP, it can automatically read critical, valve-specific configuration information, enabling “plug-and-play” installation and simplifying setup and commissioning significantly.
• Robust Environmental Protection (IP66): The IP66 rating is a key advantage, making this DVP exceptionally resilient to environmental factors (dust and powerful water jets). This expands its installation flexibility, allowing it to be placed directly in harsher environments without needing an additional protective enclosure.
• Versatile Communication: The inclusion of Ethernet (EGD) communication, alongside terminal block I/O, provides flexible and high-speed integration into modern plant-wide control networks. This facilitates remote diagnostics, monitoring, and control, enhancing overall system management.

Technical Specifications (for the 8200-504 DVP)

Typical Applications

The WOODWARD 8200-504 Digital Valve Positioner is a core component in:

• Large Gas Turbine Fuel Control Systems: Precisely positioning large gas fuel metering valves to control combustion processes in high-power generation applications.
• Large Steam Turbine Valve Actuation: Driving significant steam admission, extraction, or bypass valves for speed, load, and pressure control, especially where high forces are required for valve manipulation.
• High-Power Industrial Process Control: Any industrial application requiring the highly accurate, dynamic positioning of large valves or motors based on electronic demand signals, particularly in harsh environments.