Digital guide
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Woodward 9905-387
Product Name: ProAct Driver Model III Actuator Controller
Product Introduction: A high-power, high-precision electronic driver designed to control Woodward ProAct series proportional actuators (fuel valves, throttle bodies). It receives low-level control signals (4–20 mA / PWM) and converts them into high-current drive outputs for accurate actuator positioning. The Model III offers enhanced current capacity and fault diagnostics for heavy-duty applications.
Detailed content
Technical Specifications:
- Power Supply: 24 VDC (18–32 VDC range)
- Control Input: 4–20 mA or PWM (10–32 VDC, 300–2000 Hz)
- Drive Output: 0–5 A proportional current
- Position Feedback: Optional (4–20 mA or potentiometer)
- Operating Temperature: -40 °C to +70 °C
- Protection: Overcurrent, short circuit, overtemperature, reverse polarity
- Enclosure: Sealed metal, IP40
- Functional Features:
- High-current proportional drive for large actuators
- Precision closed-loop position control with feedback
- Adjustable gain, deadband, and response time
- Comprehensive fault diagnostics with LED indicators
- Isolated input/output for noise immunity
- Compact, rugged design for engine compartment mounting
Application Scenarios:
- Large-bore diesel/gas engine fuel control
- Industrial steam/gas turbine valve actuation
- Marine main engine and auxiliary power systems
- Oil and gas field compressor unit controls
- Heavy-duty mobile machinery prime movers
