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Arduino
Arduino Forum Arduino reset with induction motor and contactor
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Related

Arduino reset with induction motor and contactor

hawre.balak
hawre.balak over 5 years ago

Hello guys,

hope i could find a solution for my arduino based automation for a machine which contains an induction motor, the arduino is powered by a linear power supply and it controls a relay then it turns on a three phase contactor to turn on the induction motor, my problem is that whenever the induction motor starts the arduino randomly resets! How can i fix it

Note:

-the arduino works fine when the motor is not connected!

-the relay has protection diode on the coil!

-the power supply has a big 3300uF capacitor to prevent voltage dips and 0.1uF ceramic across the microcontroller.

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  • dougw
    dougw over 5 years ago +1
    You probably need to isolate the Arduino power from the coil and motor power. Use a diode to feed power to the Arduino and put a reasonably large cap on the Arduino side of the diode.
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  • neilk
    neilk over 5 years ago

    A schematic is needed to understand what the problem migh be

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  • neilk
    neilk over 5 years ago

    A schematic is needed to understand what the problem migh be

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