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    proper under voltage detection (F3.2)

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    Duet Hardware and wiring
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    • hackinistratorundefined
      hackinistrator
      last edited by

      i made a simple test to see if the board will detect under voltage events on duet3 .12V supply with high resistance wires , moving large steppers fast .

      the only under voltage shown is for the 12V rail , not the main supply .
      M122 :

      Supply voltage: min 9.6, current 11.2, max 13.1, under voltage events: 0, over voltage events: 0, power good: yes
      12V rail voltage: min 9.2, current 10.5, max 12.3, under voltage events: 11
      

      under voltage on main supply never recorded . when i tried to generate higher under voltage event the board will reset itself .
      i think the limit for under voltage on the main supply should be changed a bit higher .

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      • dc42undefined
        dc42 administrators
        last edited by dc42

        The 12V rail is the one that is critical to keep the drivers working on Duet 3, so that's the one that generates under-voltage events.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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