Perfect Reverse And Forward Motor Control Circuit
The addresses for the auxiliary contact interlocking using the r and f contacts are the output addresses of the forward and reverse starters 030 and 032.
Reverse and forward motor control circuit. We ll call this new switch stop. Contactor f 11 12 will open to prevent contactor r to be energized. Here i showed the forward reverse wiring diagram.
Motor control forward reverse. Maintaining contact f 13 14 will close to maintain contact or f continually energized even if the forward push button is release. The motor m will run reverse.
In the diagram i connect the incoming three phase supply l1 l2 l3 to the mccb circuit breaker molded case circuit breaker. The forward contactor coil energized and three phase induction motor runs in the forward direction. The motor operates in the forward and reverse direction by making the coil in the relay energize and de energize.
Two micro switches are used in which the motor is set to move in the forward direction if one switch is pressed and in the reverse direction when the other button is pressed. We use 2 magnetic contactors as forward reverse switch. The ladder circuit that latches the overload condition forward or reverse must be programmed before the circuits that drive the forward and reverse starters as we will explain shortly.
And from the mccb breaker i connect the supply to both. Forward reversing starter with mechanical and electrical interlocking. Referring to the control circuit on figure a pressing the forward push button f will energize contactor f.
This in effect reverses the wiring whenever the relay is turned on or off. Now if either forward or reverse circuits are latched they may be unlatched by momentarily pressing the stop pushbutton which will open either forward or reverse circuit de energizing the energized contactor and returning the seal in contact to its normal open state. Rung 0002 when the workpiece is near limit switch2 it will enable reverse motor for latching reverse motor is connected in parallel with limit switch 2 reverse pushbutton pb is also connected in parallel to manually operate reverse motor.