Servo Drive Measures Motor Shaft Position
Lenze-AC Tech released its resolver-based Model 941 position servo drive that measures the position of the motor shaft within a revolution, while an incremental encoder can only know the relative position of the shaft. This position servo has an integrated resolver with a scalable emulated encoder output for applications that require tight positioning control. The output scales the resolution back into the user’s controller, providing 15 options of positioning resolution. Users can also choose their own level of control with the position servo drive’s capability of controlling basic torque and velocity applications up through fully programmable coordinated motion. Originally developed for military applications due to its ruggedness, the drive has applications in hot, humid, dusty, oily or vibratory environments.