Activity › Forums › Questions & Troubleshooting › AnalogWrite causes OVL › Reply To: AnalogWrite causes OVL

  • Alex_S

    Member
    November 8, 2021 at 6:09 pm

    Dear Jarda,
    thank you for your answer.

    I’m sorry, it’s not possible to upload a photo of the dimmer.
    It’s called 15.11.8.230.0400 the manufacturer is Finder.

    https://www.findernet.com/en/worldwide/series/15-series-dimmers/type/type-1511-slave-dimmers/

    There you can find a datasheet. On page 15 there is a wiring diagramm.

    In my opinion, it is a default dimmer, with a 0-10V poti to control the dimmer, it work’s fine.
    I suspect that the dimmer can only handle real 0-10v, and not a PWM signal.

    What else can I test?

    Or is there a bug in my program?

    Should I make the PWM frequency smaller, and maybe a capacitor in parallel to the dimmer input to smooth the signal?

    Alex

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