medensat

motor

4 posts in this topic

Hi guys, i'm working in a project of a Mitsubishi PLC (FX) , i want to make a program ladder that controls two independent motors one at a time, the standby motor automatically starts in case of failure (coupur energy, default) the first engine. i program with gx iec developer 7.04, the 2 motors are switch on by (enable1,enable2). Thanks in advance

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First of all; do you have a feedback from the motors so you actually know if motor1 has stopped and you need to start motor2?

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i don't have a feedback from motors, I need a program,i want to make it so that if the main motor is running and the temperature sensor reaches (1 or 8 C°) the opposite motor will start automatically and the original motor will shut down . Both motors can never run at the same time. inputs: Enable1,Enable2,sensor. outputs:2 motors. note: don't worry about the sensor you can consider it as an ordinary input what interests me is how to make the switching of two motors Edited by medensat

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You need to compare the input temperature with a setpoint. If setpoint "high" is reached, then use a SET for motor2, and a RST for motor1. The same goes for the other way around (when setpoint "low" is reached, SET motor1 and RST motor2).

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