The electrical control system of the machine is controlled by Germany (Siemens) cu320-2pn and S120, and the parameters are set by 9 "Siemens human-machine interface (diameter does not need to be set). The operation panel can be fine tuned for high precision operation. There are two imported servo motors to control the tension, which can be set and operated independently. In the tension system of the whole machine, the taper is used to control the constant tension in winding and the servo motor is used to control the speed tension in unwinding.