Shelly 0-10V and Mean Well ELG LED driver compatibility

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  • Hi,

    which Shelly 0-10V dimmer do i need to pick if i want to control a Mean Well ELG LED driver?

    Despite having some background in electronics, I find all the information somewhat confusing.

    Looking into the details of the Gen2 and Gen3 0-10V dimmers, it says Gen2 = current sinking and Gen3 = current sourcing

    Looking at the documentation of the meanwell dimming methods, it says that the controling device can be passive (voltage divider i assume), active (0-10V) or PWM. Also there is a mention of the driver sourcing 0.1mA of current.

    https://www.meanwell.eu/ExclusivePDF/DIMMING-NOTE.pdf


    Now what does that mean exactly. If i assume the driver is sourcing 0.1mA i would conclude that i need the Shelly Gen2 which is current sinking.

    On the other hand if i assume that the driver is controlled by an active dimming device and the dimmer would provide the 0-10V, wouldn't that mean the dimmer would provide the current as well? So then it'd be the Shelly Gen3?


    Does somebody use one of the 0-10V dimmers with a Mean Well ELG driver? Or can somebody point me to a straight-forward and well working combination?

  • Shelly plus Dimmer 0-10V has an optocoupler output (PC817) forming a PWM current sink. On the other hand, the Shelly Dimmer 0/1-10V PM Gen3 delivers a smooth DC voltage between 0 to 10V. This is the main difference between these parts. Suggest to use the Gen3 device if the manual of the appliance to be dimmed does not explicitly mention PWM capability…

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Comment is free, but facts are sacred“ (C.P. Scott, britischer Verleger)

  • Actually the Mean Well documentation also mentions PWM support (resistor/PWM/0-10V). So both should actually work?

    TBH now i'm even more confused by the terminology. So 0-10V can actually also be a PWM signal despite its name suggesting an analog behaviour?

  • The Shelly plus Dimmer 0-10V has a PWM sink only. No DC voltage at the output…

    Some stuff to read:

    thgoebel
    18. November 2023 um 19:32


    On the other hand the Gen3 device:

    thgoebel
    21. Juni 2024 um 17:05

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Comment is free, but facts are sacred“ (C.P. Scott, britischer Verleger)