US Patent 7375478 Servo drive with high speed wrapping function

A servo drive with high speed wrapping function is applied for servo control of wrapping wire and method for the same. The servo drive includes a wrapping mechanism, a rotation control unit for controlling rotation of the wrapping mechanism, a lateral motion control unit for controlling lateral movement of the wrapping mechanism, a potentiometer, and an upper-layer controller. The lateral motion control unit of the servo drive cooperates with a command processor such that an inverter command of an inverter is calculated by wrapping parameter, external activating signal and a thickness detection signal. The induction motor is activated to drive the wrapping mechanism and an encoder linked with the induction motor moves the wrapping mechanism for lateral movement such that the wire is guided between two ends of wrapping cylinder.