1. Introduction: A winding machine (also known as a wire rewinding machine) precisely arranges wire from a large spool onto a smaller spool at a specific length. This system requires stopping and changing the reel after reaching the desired length, maintaining constant tension during winding and unwinding. 2. System Requirements: The winding motor operates at a given speed. As the winding diameter gradually increases, the linear speed also increases. This requires the unwinding motor to respond quickly and automatically track changes in the winding motor speed, performing constant linear speed control to maintain constant wire tension. During steady-state operation, the unwinding stand's swing arm remains stable at the midpoint. Automatic reverse winding occurs when the wire becomes loose or breaks. 3. System Configuration: The SINE300 series frequency converter is a new generation of high-performance vector control frequency converter independently developed by our company. This series is designed to meet the needs of various customers in multiple application fields. The winding motor uses the SINE300 all-around vector control frequency converter, which has a built-in high-speed pulse input interface for fixed-length control, eliminating the need for a meter, saving costs for customers and increasing product added value. The unwinding motor uses the SINE319 power take-up and unwinding vector inverter. This model is a user-friendly power take-up and unwinding vector inverter that automatically calculates the spool diameter. No inverter parameters need to be set; the factory settings are the optimal parameters. Simply connect the wires correctly according to the instruction manual, and it will start working normally. It can automatically identify the take-up and unwinding speed and direction, automatically track the take-up line speed for constant line speed control, and keep the tension balance bar basically at the midpoint of the power unwinding frame. Regardless of the line speed, the tension remains constant. 4. Debugging Instructions: 1. After connecting the SINE319 power take-up and unwinding inverter wiring, first determine the polarity and position of the tension potentiometer feedback. Specifically, adjust the inverter parameter to C25 (PID feedback monitoring, this parameter represents the actual value of the feedback voltage at the VF terminal). When the lever is at the lower limit, the feedback voltage should be approximately 9.5V displayed on C25; when the lever is at the lower limit, the feedback voltage should be approximately 0.5V displayed on C25; the midpoint is 5V. 2. Press the JOG key on the keyboard to start the inverter. The direction of rotation of the power wire feeding frame should be the wire feeding direction. Otherwise, reverse any two phases of the inverter's output (U, V, W) to reverse the inverter. During normal wire feeding testing, manually pull the wire briefly and then hold it still, observing the change in tension lever and the speed of the unwinding inverter. If the lever's return to the midpoint is slow, increase the value of parameter F7.14 (PID proportional gain). Conversely, if the lever reacts too quickly or hits the upper limit, decrease the value of parameter F7.14 (PID proportional gain). 3. Parameters of the winding inverter: F0.04=1 (External terminal start) F0.16=25 S (Acceleration time) F0.17=25 S (Deceleration time) F0.09=2 (External potentiometer speed adjustment) F3.25=0 (Output relay 2 is defined as relay action during inverter operation) F5.10=001 (Automatic stop after reaching the set length; external terminal reset is required before restarting) F5.19= m (Actual required length value) F5.23= mm (Actual circumference of the measuring shaft) F5.24= 2 (Actual number of detection pulses per revolution of the measuring shaft) 5. Conclusion: Using the SINE300 all-purpose vector inverter for winding, with a built-in high-speed pulse input interface, allows for fixed-length stop control, eliminating the need for a meter, saving customer costs, and increasing product added value. The unwinding process utilizes the SINE319 power-operated open-loop vector frequency converter. Simply follow the instructions for correct wiring to start and operate normally; it's incredibly user-friendly, a truly foolproof power-operated wire winding and unwinding frequency converter. Because of its active unwinding method, it automatically tracks the winding speed, providing constant speed control and maintaining constant tension. Even at high speeds, it ensures the quality of wire processing. In practical applications, it fully meets customer requirements, achieving true constant tension and smooth unwinding and winding.