Woodward 8200-224 Servo Position Controller

Woodward 8200-224 Servo Position Controller – Precision Valve Actuation for Critical Industrial Applications

The Woodward 8200-224 Servo Position Controller delivers exceptional precision and reliability for valve actuation in gas turbines, steam turbines, and demanding industrial process control environments. Engineered with advanced feedback algorithms and rugged construction, this controller ensures accurate positioning under extreme operating conditions.

Technical Specifications

• Model: 8200-224
• Control Type: Closed-loop servo position control
• Input Signal: 4-20 mA analog current loop
• Output: Proportional hydraulic valve command
• Feedback: LVDT (Linear Variable Differential Transformer)
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Power Supply: 24 VDC nominal
• Response Time: <50 ms typical
• Accuracy: ±0.5% full scale
• Protection Rating: IP65 (NEMA 4X equivalent)

Key Applications & Solutions

Gas Turbine Control: Manages fuel valve positioning for precise combustion control, optimizing efficiency and emissions compliance in power generation and mechanical drive applications.

Steam Turbine Governing: Controls steam admission and extraction valves, enabling accurate load response and stable operation across varying demand profiles.

Industrial Process Automation: Regulates flow control valves in chemical processing, oil & gas, and manufacturing systems requiring high-precision actuation with fail-safe redundancy.

Advanced Features & Benefits

The 8200-224 incorporates adaptive gain scheduling to maintain optimal performance across the full stroke range, compensating for non-linearities in hydraulic actuators and valve linkages. Built-in diagnostics monitor feedback signal integrity, power supply health, and command tracking error, providing early fault detection to minimize unplanned downtime.

Its compact, DIN-rail mountable design simplifies retrofit installations while maintaining compatibility with legacy Woodward control architectures. The controller's electromagnetic interference (EMI) shielding and conformal coating ensure reliable operation in electrically noisy industrial environments.

Frequently Asked Questions

Q: Is the 8200-224 compatible with third-party actuators?
A: Yes, the controller supports standard LVDT feedback and can interface with most hydraulic actuators using 4-20 mA command signals. Consult factory documentation for specific actuator compatibility verification.

Q: What calibration procedures are required during commissioning?
A: Initial setup involves zero and span adjustment using onboard potentiometers. Detailed calibration instructions are provided in the installation manual. Field recalibration is typically not required unless actuator components are replaced.

Q: Can the 8200-224 operate in redundant configurations?
A: The controller supports dual-channel redundancy when paired with compatible Woodward systems. Consult application engineering for redundant architecture design guidance.

Q: What is the expected service life?
A: Under normal operating conditions, the 8200-224 is designed for 15+ years of continuous service. Regular inspection of electrical connections and environmental sealing is recommended per maintenance schedules.

Warranty & Support

Every Woodward 8200-224 Servo Position Controller includes a comprehensive 12-month warranty covering manufacturing defects and workmanship. Our technical support team provides application assistance, troubleshooting guidance, and replacement part identification to ensure maximum uptime.

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