Woodward 9905-463 ProAct Digital Speed Control
- Product Name: Woodward 9905-463 ProAct Digital Speed Control (Revision N)
- Product Description: An enhanced ProAct series digital speed control module (Revision N) designed for high-precision speed regulation of diesel engines, gas engines, and steam turbines. It features improved EMI resistance and firmware optimizations for enhanced control stability in harsh industrial environments.
- Technical Specifications:
- Power Supply: 18–32 VDC (24 VDC nominal)
Detailed content
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- Actuator Current: 10 A continuous; 30 A peak for transient loads
- Speed Sensing: Magnetic Pickup (MPU) or proximity probe (1–30 Vrms)
- Analog Inputs: Remote speed setpoint (4–20 mA or 1–5 VDC)
- Discrete Inputs: Run/Stop, Idle/Rated, Raise/Lower, Speed Reset
- Operating Temperature: -40°C to +70°C
- Weight: Approximately 2.3 kg
- Key Features:
- Revision N firmware optimizations for improved EMI resistance and control stability
- High-current actuator output for driving large ProAct series actuators
- Torsional filtering for smooth speed control and reduced mechanical vibration
- Isochronous/droop mode selection for single or parallel operations
- Failed speed sensor protection and overspeed trip test capability
- Seamless integration with Woodward 2301A series controls for hybrid systems
- Applications: Large diesel/gas generator sets, industrial steam turbines, marine propulsion systems, and oil & gas pipeline compressor drives.












