PLC PROGRAMMING MOTOR FORWARD - REVERSE CONTROLLING
#plcprogramming ,#ladderlogic ,#hmi
In this motor starter, there are four Contactors and switches (Two ON-Push and OFF-Push) are used to change the rotating direction of a three phase motor such as Revers, Forward, Up or down. As there is no timer used in the control circuit, the operation is semi-automatic or manual.
The power circuit and schematic wiring diagram shows that L1 and L3 have been changed for reverse and forward operation of the three phase motor (as changing two lines out of three will change the rotation of the motor in opposite direction). This kind of motor starting methods through motor starters are needed and used in lathe machines and cranes etc. to change the rotation of motors
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