One-way operation energy consumption braking circuit No. 10

 Figure 3-142 shows the winding machine control device circuit. The winding machine is used to wind plastic binding tape (such as grafting tape)
. Wrap a length of plastic tape around a plastic reel. Due to the low strength of the plastic belt, in order to prevent the plastic belt from being broken, the motor
must be stopped quickly when shutting down . In addition, in order to measure the length of the plastic tape wound on the reel, a photoelectric counter is used .     When stopping, press the stop button SBz, the contactor KMi is released, KM2 is engaged, the electromagnetic clutch Y and the energy consumption braking circuit work at the same time, and the motor is quickly braked to stop.     The purpose of using time relay KT delay (1~2s) is to ensure sufficient braking time. In fact, the motor is braked to a halt almost instantly . In the figure, contact K, when the photoelectric counter is ready to count