Technical Parameters
1. General Specifications
Model: 9906-619

Manufacturer: Woodward

Type: Digital Speed Control Module

Application: Speed governing for gas/diesel engines, turbines, and compressors

2. Electrical & I/O Specifications
Power Supply:

18–36V DC (typical operating range)

10–35V DC (full range)

Power Consumption: ≤15W

Speed Sensing Input:

Magnetic Pickup (MPU) or Proximity Sensor

Frequency Range: 1 Hz – 20 kHz

Analog Inputs:

4–20mA / 0–10V (configurable for load, pressure, temperature)

Digital I/O:

Programmable discrete inputs (start/stop, alarms, fault reset)

Relay Outputs: SPDT/DPDT (for shutdowns, alarms, load control)

3. Speed Control & Performance
Control Modes:

Isochronous (constant speed)

Droop (load-dependent speed adjustment)

Load Sharing (for parallel generator operation)

Speed Range: 0–20,000 RPM (adjustable)

Accuracy: ±0.25% of setpoint

Stability: ±0.1% steady-state regulation

4. Protection & Diagnostics
Overspeed/Underspeed Protection

Loss of Speed Signal Detection

Fail-Safe Shutdown Logic

Built-in Fault Logging & Diagnostics

5. Communication & Configuration
Protocols:

CANbus (SAE J1939) – Engine communication

Modbus RTU (RS-485) – SCADA/PLC integration

Configuration: Programmable via Woodward Toolkit Software

6. Environmental & Mechanical
Operating Temperature: -40°C to +85°C (-40°F to +185°F)

Housing: IP40-rated (dust-resistant)

Mounting: DIN rail or panel mount

Key Features
✔ Precise Digital Control – PID-based algorithm for optimal speed regulation.
✔ Flexible I/O Configuration – Supports multiple sensor inputs and relay outputs.
✔ Load Sharing Capability – Ideal for parallel generator applications.
✔ Robust Protection – Prevents damage from overspeed, loss of signal, and other faults.
✔ Easy Integration – Compatible with CANbus & Modbus for system communication.

Typical Applications
Power Generation (Standby/Prime Gensets)

Industrial Turbines & Compressors

Marine & Offshore Power Systems

Oil & Gas Pipeline Compression