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Woodward 8262-959
Product Overview
A digital position controller designed for precise actuator positioning in turbine and engine control systems. It works in conjunction with Woodward 505/505E digital turbine controllers, providing closed-loop position control for fuel valves, steam valves, and throttle actuators. The unit accepts a 4–20 mA command signal and outputs a calibrated 4–20 mA drive signal to the actuator, ensuring accurate positioning under varying load conditions.
Detailed content
Technical Specifications
- Power Supply: 18–40 VDC (24 VDC nominal)
- Command Input: 4–20 mA analog signal
- Actuator Output: 4–20 mA proportional current
- Position Feedback: 4–20 mA or 0–10 VDC signal
- Control Algorithm: PID closed-loop control
- Operating Temperature: -40 °C to +70 °C
- Dimensions: 260 mm × 248 mm × 25 mm
- Weight: 1.8 kg
Functional Characteristics
- High-precision closed-loop position control for actuators
- Fault detection for open/short circuits and signal loss
- LED status indicators for power, fault, and control activity
- Software-configurable PID parameters for different actuators
- Compact, panel-mount design for control cabinet installation
- High noise immunity for industrial EMI environments
Application Scenarios
Steam and gas turbine fuel valve control, industrial engine throttle positioning, petrochemical compressor guide vane control, and power plant auxiliary system actuators.
