Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Simple overall wiring for self-locking control of motor operation and fault analysisPhysical wiring diagramCircuit diagramWorking Principle and Fault Analysis:1. Close QF1 and QF2 to conduct the power supply. Press the jog button SB2. The AC contactor KM coil gets electricity. The main contact closes and the auxiliary contact closes to conduct the power supply. The KM self-locking three-phase asynchronous motor starts to run.2. Release the SB1 button. The AC contactor coil loses electricity. The

The secondary control circuit of the intermediate relay self-locking1、Physical wiring diagram&Circuit diagram2、Operation principle Close QF to connect the power supply. Press the start button SB2, the coil of the intermediate relay gets electricity. The normally open contact 9-5 is closed to conduct the power supply. The intermediate relay is self-locked and the load starts to operate. Press the stop button SB1, the coil of the intermediate relay loses electricity. The normally open contact

Physical diagram of interlock of 14-pin intermediate relayThe circuit diagram of interlock for 14-pin intermediate relays