We are offering jac580l drawing machine specific frequency convertervoltage level:220v (single-phase power): 0.4kw-2.2kw380v (three-phase power): 0.75kw-400kwfeaturescontrol mode: vector control (fvc, svc), torque control, v f control technology, and at the same time, designed to facilitate the closing line using synchronization control and tension control function.Tension control: pid tension control alone or master drive + pid tension control.According to different groups of users accustomed to setting parameters macros, reducing the workload of user settings.Dynamic parameter control: volume diameter, gear ratio, diameter, kongpan, half plate, full plate, low, medium, high speed, tension, short all handled automatically by the inverter.Do not need pid board, plc, external controller, you only need a small amount of external operation switch intermediate relay.