Description
Woodward SPM-D11
Technical Specifications
- Brand: Woodward
- Model: SPM-D11
- Product Type: Servo Drive / Positioning Module
Functional Features
- Closed-Loop Control: Continuously compares commanded position with actual feedback to eliminate error.
- Fault Detection: Monitors for motor overcurrent, feedback loss, and mechanical jams.
- Signal Conditioning: Amplifies low-power control signals to drive high-power servo motors.
Application Scenarios
Integrated into advanced turbine control cabinets and engine management systems requiring precise electro-mechanical actuation.
Performance Parameters
- Response Bandwidth: High-frequency response for stable control loops.
- Resolution: High-resolution position tracking for smooth valve modulation.
Material Composition
Precision electronic components on a multi-layer PCB with conformal coating for environmental protection.
Structural Characteristics
Standard industrial module form factor with plug-in connectors for power, control signals, and actuator feedback.
Working Principle
Receives a target position from the main controller, generates the appropriate drive current for the servo motor, and reads the position sensor to ensure the actuator reaches the exact commanded location.
Installation Requirements
Install in a compatible control rack. Route feedback cables away from high-voltage power lines to prevent noise interference.
Usage Precautions
Ensure the servo motor and feedback device are correctly matched to the SPM-D11 configuration. Observe ESD precautions during handling.





