Woodward 9905-211 Digital Speed Control

Product Description

• The Woodward 9905-211 Digital Speed Control is a microprocessor-based speed controller designed for engines and turbines.

• It provides precise digital regulation of engine or generator speed by processing input signals from sensors and generating control commands for actuators.

• The controller supports stable operation in industrial and power generation environments, offering high reliability, fast response, and protection features.

• It integrates with Woodward governors, fuel systems, and control networks for automated speed control and monitoring.

Technical Specifications

• Part Number: 9905-211

• Module Type: Digital Speed Controller

• Control Type: Closed-loop digital speed regulation

• Input Signals: Magnetic pickup, tachometer, or other rotational speed sensors

• Output Signals: Analog or digital control signals to actuators or governors

• Speed Range: Configurable depending on engine/turbine application (e.g., 0–3600 RPM typical)

• Control Accuracy: ±0.25% of setpoint under normal operating conditions

• Power Supply: 24 VDC nominal

• Power Consumption: Approximately 10–12 W

• Response Time: < 10 ms for speed correction

• Operating Temperature Range: –20 °C to +70 °C

• Storage Temperature Range: –40 °C to +85 °C

• Relative Humidity: 5% to 95% non-condensing

• Mounting: Panel or chassis-mounted within Woodward control system

• Dimensions: Approx. 250 mm × 120 mm × 40 mm

• Weight:  0.5–0.7 kg

• Applications: Engine speed control, turbine regulation, generator synchronization, and automated process control systems