Digital guide
You are here:
Woodward 9905-969
Product Overview
An enhanced digital variant of the industry-standard 2301A analog controller, designed for precise engine speed regulation and generator load sharing. It integrates digital PID control, advanced load sharing algorithms, and improved communication capabilities for modern power generation applications.
Detailed content
Technical Specifications
- Power Supply: 18–40 VDC, 8 W maximum
- Speed Signal Input: 1–30 VRMS magnetic pickup (MPU) signal
- Actuator Output: 4–20 mA or 0–200 mA configurable current
- Load Sharing Signal: 0–6 VDC analog signal (for paralleled generators)
- Control Modes: Isochronous (zero droop) and droop (2–5% adjustable)
- Operating Temperature: -40 °C to +70 °C
- Dimensions: 274 mm × 214 mm × 59 mm
- Weight: 1.82 kg
Functional Characteristics
- Digital PID speed control with adjustable gain and stability parameters
- Accurate real kW load sharing between up to 12 parallel generators
- Built-in reverse power protection to prevent generator motoring
- Software-configurable parameters for different engine types
- LED status indicators for power, sync, load, and fault conditions
- Screw-clamp terminals for secure field wiring
- Rugged metal enclosure for EMI shielding and vibration resistance
Application Scenarios
Industrial standby power systems, marine power plants, commercial building emergency generators, multi-generator parallel operation systems, and oil/gas field distributed power generation.
