Hi, in this article we are going to see Motor Control Circuit Diagram rotate in a Forward and Reverse Direction. Here, the wiring and control circuit diagrams are given and explained in detail. Generally, in industrial applications, Elevators, Cranes, etc we need to rotate the motor in both forward and reverse directions.
Forward Reverse Motor Control Wiring Diagram
Here the wiring diagram for motor control with indicator light connection is given below.
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Connection Description
1. Main incoming three-phase supply is connected to the MCCB. MCCB outgoing is connected to the contactor.
2. Here both contactor is connected in parallel but the ‘R’ and ‘B’ phases are interchanged for the second contactor.
3. Interlocking: Interlocking is the arrangement of turning on only one contactor at a time. As both contactors are connected in parallel and the terminal interchanged for the second contactor, so there will be a short circuit if both contactors are turned on at the same time.
So the magnetic coil of the first contactor is connected through the NC contact of the second contactor. As it is the magnetic coil of the second contactor is connected through the NC contacts of the first contactor. So only one contactor can be turned at a time.
4. Here, you can also see the main incoming of the control circuit is connected through the NC contact of the thermal overload relay, so when the relay turned on due to an overcurrent fault it will disconnect the total control circuit from the power supply as a result contactor also be turned off and the motor will be disconnected from the power supply.