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Phone: +86 18059884790
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- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat：18059884790
- E-mail: plc66@qq.com
WOODWARD 8200-508 SPC Servo Position Controller
Product Brief Description
Woodward 8200-508 is an SPC digital servo position controller designed for high-precision closed-loop valve positioning in turbomachinery control systems. It receives position setpoint commands from the main turbine controller and drives hydraulic servo actuators, using LVDT/RVDT position feedback to maintain accurate valve stroke. This rack-mount module converts digital command signals into analog drive current for servo coils, featuring built-in diagnostics and service ports for tuning. It serves as a critical spare part for gas turbine, steam turbine and compressor control cabinets used in power generation and oil & gas industries.
Product Features & Functions
- High precision closed-loop servo position control for hydraulic servo valves and turbine actuators
- Compatible with LVDT and RVDT position feedback transducers; supports dual redundant feedback sensors
- Configurable analog current output for servo coil driving, adjustable servo drive current range
- Fieldbus interface to communicate with Woodward MicroNet and NetCon master controllers for setpoint reception
- Wide 18–32 VDC power input range, suitable for industrial turbine cabinet power supply systems
- Continuous self-diagnostics to detect cable breaks, short circuits, feedback signal faults and internal hardware errors
- RS232 service port for on-site loop tuning, parameter backup, firmware upgrade via Woodward SPC Service Tool
- Onboard LED indicators showing power status, bus communication activity, drive active state and fault alarms
- Compact rack mount construction with vibration resistance for high-noise industrial control cabinet environments
Application Scenarios
- Gas turbine fuel control valve and steam turbine governor valve positioning control
- Centrifugal compressor anti-surge valves and recycle valve control skids
- Cogeneration CHP plants and captive power station turbomachinery control systems
- Oil & gas refinery and pipeline prime mover control cabinets
- MicroNet/NetCon system maintenance, spare replacement and turbomachinery control retrofits
FAQ
Q: What is Woodward 8200-508 used for?
A: It is SPC servo position controller for turbine valves, providing closed-loop position control for hydraulic servo actuators under MicroNet/NetCon host controller.
Q: What software is required to tune this controller?
A: Woodward SPC Service Tool is used for gain tuning, parameter configuration, firmware update and fault diagnostic checks.
Q: Can the 8200-508 run standalone without a MicroNet CPU?
A: No, it must receive position setpoint commands from the host MicroNet or NetCon controller over fieldbus.
Q: What position sensors can be connected?
A: LVDT and RVDT transducers are supported. Dual feedback can be configured to improve system reliability.
Q: Are refurbished 8200-508 spare modules available?
A: Refurbished spare units are available. Each module undergoes fieldbus communication test, closed-loop stroke simulation and fault injection testing before shipment.
