Reverse Forward Motor Control Circuit Using PLC – ZEN Programming Relay

How to Control the Reverse Forward Motor Operation Using Omron PLC ZEN Programming Relay?

In industrial applications, motor control circuits are used to control the speed, direction, and braking of electric motors. One common method of controlling the direction of rotation of a motor is the reverse forward motor control circuit. In this circuit, a motor can be made to rotate in both directions by using two contactors, one for forward direction and the other for reverse direction. The Omron PLC ZEN programming relay is an ideal choice for implementing the reverse forward motor control circuit.

The Omron PLC ZEN programming relay is a compact and cost-effective programmable logic controller that can be used for a wide range of applications. The ZEN relay is equipped with a user-friendly programming interface that allows for easy implementation of control circuits, such as the reverse forward motor control circuit.

The reverse forward motor control circuit using the Omron PLC ZEN programming relay consists of two contactors, a power supply, and the ZEN relay. The contactors are used to switch the motor connections between the power supply and the motor terminals, allowing the motor to rotate in either direction. The ZEN relay is used to control the contactors and to implement the control logic for the circuit. (We have used 10C1AR-A-V2 (100-230V AC) and 10C3D -D-V2 (24V DC) programable relays in this tutorial).

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Hardware Required

The following hardware components are required to implement the automatic control of reveres-forward motor rotation:

Power, Wiring & Ladder Control Diagrams

Wiring Diagrams

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Reverse Forward Motor Control Circuit Using Omron PLC ZEN Programming Relay
Wiring Diagram using Zen Programable Relay 10C1AR-A-V2 operated on 100 to 230VAC
REV-FWD Motor Control Using ZEN Programming Relay
Wiring Diagram using Zen Programable Relay 10C3DR-D-V2 operated on 12 to 24V DC.
Reverse Forward Motor Control Without External Buttons Using ZEN PLC
Reverse Forward Motor Control Without External Buttons Using ZEN PLC

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To implement the reverse forward motor control circuit using the Omron PLC ZEN programming relay, the following steps can be followed:

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Power Diagram

Reverse-Forward Control Circuit For 3-Phase Motor - Power Diagram

Ladder Control Diagram

Forward-Reverse Motor Control Program on PLC

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Programming

To program the Omron ZEN programming relay for forward and reverse control of a three-phase motor, follow these steps:

Step 1: Open the ZEN programming software (ZEN-SOFT01-V4 or CX-Programmer) or  and create a new project.

Step 2: Add a new program to the project and select the ZEN relay model that will be used in the circuit.

Step 3: Set the input and output points for the relay. The input points are used to control the direction of the motor, while the output points are used to control the contactors that switch the power supply to the motor.

Step 4: Define the input and output points for the forward and reverse contactors. The input points for the forward contactor should be connected to the output points for the reverse contactor, and vice versa.

Step 5: Program the relay to control the contactors based on the input signals. To rotate the motor in the forward direction, the forward contactor should be activated, while the reverse contactor should be deactivated. To rotate the motor in the reverse direction, the reverse contactor should be activated, while the forward contactor should be deactivated.

Step 6: Define the start and stop buttons for the motor. These buttons can be connected to input points on the ZEN relay and programmed to start and stop the motor based on the direction of rotation.

Step 7: Test the circuit by connecting the ZEN relay to the contactors and the motor. Apply power to the circuit and press the start button to test the motor’s rotation in both directions.

The reverse forward motor control circuit using the Omron PLC ZEN programming relay offers several advantages over traditional motor control circuits. First, the ZEN relay provides a compact and cost-effective solution for implementing the control logic for the circuit. Second, the ZEN relay’s user-friendly programming interface makes it easy to program the control logic for the circuit. Finally, the circuit is easy to maintain and troubleshoot, as the ZEN relay provides diagnostic information that can be used to identify and resolve any issues that may arise.

Disclaimer: The typical circuit diagram and control program logic shown above are provided for illustration, reference, and educational purposes only. The live circuit may be expanded with additional modifications, such as interlocks, safety devices, or other applications, as per the circuit’s requirements.

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