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The secondary control circuit of three - phase asynchronous motor inching jog forward and reverse

Simple self-locking control motor runs integral wiring

Intermediate relay self-locking secondary control circuit

Secondary circuit diagram of single-button start and stopPhysical wiring diagramCircuit diagramWorking Principle:1. Close QF to connect the power supply. Press SB, and the relay KA1 is energized and pulled in. The normally open contact of KA1 is closed, the coil of the AC contactor KM is energized, KM is pulled in and self-locked. The motor operates.2. The normally open contact of KM is closed, and the normally closed contact is disconnected. At this time, the coil of the relay KA2 cannot be ene

Three-phase asynchronous motor jogging forward and reverse secondary control circuitPhysical wiring diagramCircuit diagramWorking Principle:After closing the circuit breaker QF to connect the power supply, when the SB1 start button is pressed, the current passes through the normally closed point of KM2 to supply power to the KM1 coil, causing the main contact of KM1 to close and the motor to run forward. Once the SB1 button is released, the motor stops immediately.During the forward rotation of