Activity › Forums › Questions & Troubleshooting › Controllino with Meanwell 0-10V LED power supply › Reply To: Controllino with Meanwell 0-10V LED power supply

  • Jarda

    Member
    March 17, 2023 at 1:21 pm

    Hello Alex again,

    now I’m reading that you are using D15, so you dont have CONTROLLINO Automation and you HAVE MEGA, so you are using PWM control. Sorry for my mistake 😉

    Yes, load resistor helps in your case, maybe you can go little bit lower to for example 10K, because current at meanwell power supply is in uA so maybe because of internal capacitance there is still some voltage.

    I hope you have version of the power supply for PWM, not for DALI ;-).

    Also please note, that PWM input of the meanwell power supply shall be around 10V, so dont use your controllino at 24V 😉

    Next point is, that Meanwell power supply needs around 1.5kHz the PWM, it is on the border of possibilities of CONTROLLINO output. So probably output is not able to achive this frequency and on the ouput is “only” the voltage, not PWM. Please check it via oscillocope.

    Best Regards

    Jaroslav

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