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    2 x radial 24volts fan not spining

    Duet Hardware and wiring
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    • claustro
      claustro last edited by

      Hi ,
      I have a duet wifi all with 24volt psu.
      I connected two 24 volts radial fan in parallel on fan output. they spin only after I give it a spin with my finger, they don't start by himself. Any idea where is the problem

      thx
      Andrea

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      • Dougal1957
        Dougal1957 last edited by

        Why did you need to wire them in Parallel when you have 5 fan outputs

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        • T3P3Tony
          T3P3Tony administrators last edited by

          Do they turn properly when connected to the always on fan pins (with 24V directly applied, no PWM)

          www.duet3d.com

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          • claustro
            claustro last edited by

            @ Dougla1957 'beçouse I want drive both at same speed in the same time

            @T3P3Tony , I'll make some tests and then I'll report

            thx

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            • number40fan
              number40fan last edited by

              Hook the grounds together and use your PWM fan connection for power to one fan, ground for both, and grab 24 volts from somewhere else for your second fan.

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              • claustro
                claustro last edited by

                Thank you for replay. I installed the wire for suggested config. Can suggest me were I can grab 24v safely? I was thinking about the alwais on fan pin. I have one free.
                Thx
                Andrea

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                • number40fan
                  number40fan last edited by

                  That should work fine.

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                  • claustro
                    claustro last edited by

                    thx! 😉

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