1. Power Supply
Operating Voltage: 18-32 VDC (nominal 24 VDC)

Power Consumption: <15W typical

Redundancy: Optional redundant power supply input

2. Speed Sensing Inputs
Sensor Types:

Magnetic pickup (MPU)

Proximity sensor

Frequency Range: 10 Hz to 20 kHz

Input Channels: 2 (primary + backup)

3. Control Outputs
Actuator Drive:

Analog output: 4-20 mA or 0-10 VDC

PWM output: For direct actuator control

Load Sharing: Isochronous or droop mode selectable

4. Control Performance
Speed Regulation Accuracy: ±0.25% of setpoint

Adjustable PID Parameters: Proportional, Integral, Derivative

Dynamic Response: Configurable for different engine types

5. Communication Interfaces
Standard:

RS-232/RS-485

Optional:

CAN bus (SAE J1939)

Modbus RTU

6. Protection Features
Overspeed/underspeed protection

Loss of speed sensor detection

System fault diagnostics

7. Environmental Specifications
Operating Temperature: -40°C to +70°C

Humidity: 0-95% non-condensing

Vibration Resistance: 5g (MIL-STD-810)

Enclosure Rating: IP20 (requires protective housing)

Functional Description
1. Speed Regulation
Maintains precise engine speed under varying load conditions

Adjustable speed setpoint with ramp-up/ramp-down control

2. Load Management
Isochronous mode for single engine applications

Droop mode for parallel generator operation

Adjustable load sharing parameters

3. System Monitoring
Real-time speed display

Fault diagnostics and alarm indication

Event logging capability

4. User Interface
Front panel LCD display

Keypad for parameter adjustment

LED status indicators

5. Flexible I/O Configuration
Multiple analog and digital I/O channels

Configurable for various control schemes

Expansion capability for additional functions

Typical Applications
Standby and prime power generator sets

Industrial engine control systems

Gas compression and pumping applications

Marine propulsion systems

Ordering Information
Part Number: 9907-173

Documentation: Refer to Woodward manual 03070-XX for complete specifications