Control circuit for forward and reverse motor

#CONTROL CIRCUIT FOR FORWARD AND REVERSE MOTOR FULL#
#CONTROL CIRCUIT FOR FORWARD AND REVERSE MOTOR SERIES#

The start button is the no normally open point of the connected button switch.ДЈгЂЃ Unidirectional operation electrical control circuit The inching effect can be achieved by connecting sb start button to any live wire. It ensures that the two contactors can not be pulled in at the same time, and can directly start the other rotation direction of the motor without pressing the stop button.ДўгЂЃ Control motor forward and reverse rotationД¬oils A1 and A2 of KM contactor are respectively connected with a live wire.

#CONTROL CIRCUIT FOR FORWARD AND REVERSE MOTOR SERIES#

For example, press SB2, which is connected in series in the km2 coil circuit, and the SB2 dynamic breaking contact disconnects the km2 line. (Figure C) on the basis of the above figure, the mechanical interlock composed of the dynamic breaking contact of the start button is added. Disadvantages: the stop button SB1 must be pressed first to stop the motor before starting the other rotation direction of the motor. It ensures that only one contactor is pulled in at any time to avoid short circuit of power supply. These two dynamic breaking contacts are called interlocking contacts, and this interlocking is called electrical interlocking. A dynamic break contact of km2 is connected in series in the KM1 coil circuit: similarly, a dynamic break contact of KM1 is connected in series in the km2 coil circuit. (Figure b) the principle is the same as figure a. if they are pulled in at the same time, the power supply is short circuited at the connection point of the contactor. Cause: the main circuit contactors KM1 and km2 are connected to the power supply of two phase sequences of motor M. Disadvantages: SB2 and Sb3 buttons cannot be pressed at the same time, otherwise the power supply will be short circuited and the motor will not work. Press SB1, km2 is powered off and released, and the motor stops. Press Sb3, km2 is powered on and engaged, and the motor starts and reverses. Press SB1, KM1 is powered off and released, and the motor stops. (figure a) press SB2, KM1 is powered on and engaged, and the motor starts to rotate forward. Its function is usually realized by integrated circuit, rather than an independent instrument.ДЎгЂЃ Reversible control circuit of asynchronous motor Its main function is to generate driving rotation.

Schematic Wiring Diagram of 3-О¦ Phase Motor Connection for Reverse and Forward operation using Star/Delta starter without Timer.Motor controller is a device used to control the operation of motor. Direct Online Starter вЂ“ DOL Starter Wiring Diagram for MotorsД¬ontrol Diagram of 3-Phase Motor Connection (Star/Delta starter without timer) for Reverse / Forward or Up-down operations.What is Soft Starter? Its Working, Diagram and Applications.

Power Diagram of Three Phase Motor Connection for Star/Delta starter without timer to operate the motor in Reverse / Forward directions. Three Phase Motor Connection STAR/DELTA Without Timer вЂ“ Power & Control Diagrams.Star-Delta (Y-О”) 3-phase Motor Starting Method by Automatic star-delta starter with Timer.

#CONTROL CIRCUIT FOR FORWARD AND REVERSE MOTOR FULL#

They are used as a Star-Delta starter where the motor connects to the main supply in star configuration initially (to reduce the high stating current) and then in Delta connection with full load speed and voltage.

K4 Contactor is in star connection while K3 Contactor is in Delta Connection.

In simple words, both K1 (for Forward) and K2 (for Reverse) contactors canвЂ™t be ON at the same time. if pushbutton for Forward direction is ON, we will have to stop the starter before changing the rotation of the motor.

Keep in mind that only one operation (either forward or reverse) is possible at a time due to electrical interlocking i.e.

Contactor (Where as two lines are changes with respect to the first contactor i.e. Similarly, the pushbutton for Reverse operation is used to rotate the motor in Reverse or Down position via K2.

If we press the pushbutton for Forward Operation, the motor will start in forward or Up position via K1 Contactor.

Control circuit for forward and reverse motor