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Woodward 8271-442
Product Full Name: Woodward 8271-442 Digital Governor Actuator Position Control Drive Module
Product Introduction: Original dedicated actuator drive control module from Woodward 8271 series, matched with digital speed governors for industrial engines and turbines. It realizes signal conversion, power amplification and closed-loop position control of governor output commands to electro-hydraulic actuators.
Detailed content
Technical Specifications:
- Operating Power Supply: DC 24V rated input
- Control Signal: Digital PWM / analog 4–20mA governor command signal
- Drive Channel: Single independent electro-hydraulic actuator drive channel
- Position Feedback Accuracy: ≤±0.5% full scale error
- Operating Temperature: -20°C to +60°C
- Protection Functions: Overcurrent, short circuit, overvoltage protection
Functional Features:
- High power signal amplification for weak governor control signals
- Real-time closed-loop adjustment with actuator position feedback
- Stable drive output under continuous high vibration operation
- Complete electrical isolation between control and drive circuits
- Fast dynamic response matching turbine load change characteristics
- Panel fixed installation for control cabinet integration
Application Scenarios:
- Industrial steam turbine governor actuator control
- Diesel generator speed regulation valve drive systems
- Natural gas engine fuel valve position control
- Marine turbine propulsion actuator control
- Industrial turbomachinery prime mover control equipment
