Single Phase Induction Motor Direction Control Using PLC (v3)

Hello Friends, I am posting version3 project of Single Phase Induction Motor Direction Control. Already has done this project using Relay circuit and Microcontroller. Now it is the time for PLC programming. Many people are always searching for PLC projects in Internet for their mini projects. It is the opportunity for them to do this small project.
This Projects has RUN, STOP, FRW, REV control switches. One of the output controls RUN/STOP and another one forward /Reverse of motor. In default motor is in STOP and Forward condition.  And control of direction can achieved before RUN or While Running. But if you not defined direction it will rotates in Forward direction only.

Here we are not mentioning any PLC. This project can do in any PLC, but some precautions are required before connection. It is mentioned after Circuit diagram. For simulation purpose download Siemens Logo Soft COMFORT.

 It is free Programmer and simulator.

Go TO download page

Connection diagram of PLC and motor circuit is shown below.

Before connecting the Motor:

1)      Check the Rating of PLC output Relay, if it is 220v and 1-2Amps then ceiling Fan can use to control. Otherwise you have to check maximum motor current.

2)      If output Relay rating is less than 220v then you have to use External Relay, it should be Actuated by DC supply

3)      Check the input Rating of Relay, connection of input requires mentioned voltage as per PLC manual

Input switches are Push buttons, 3 are normally open (NO) switch and for STOP it is normally closed (NC) switch.

Power Circuit for Input Switches:

Ladder Diagram:

 Any Queries please comment.  

All the best

Thank you all... 

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About Praveen S

Hello everyone, I am Praveen S, currently employed as "Technical Design Engineer" for Polycab Wires Pvt Ltd , I am a BE Graduate in EEE from NMAMIT Nitte (Karnataka, India). I am very passionate about learning and sharing my knowledge relating to the areas of "Electrical and Electronics". Here's my blog to share my ideas and to improve myself.