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    24 volt fan with PWM control

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    Duet Hardware and wiring
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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by

      Can you give some information about your fan?

      Have you seen this? https://docs.duet3d.com/en/User_manual/Connecting_hardware/Fans_connecting

      Z-Bot CoreXY Build | Thingiverse Profile

      Zsevenundefined 1 Reply Last reply Reply Quote 0
      • Zsevenundefined
        Zseven @Phaedrux
        last edited by

        @Phaedrux Yes, I have read it but not understood it.
        The fan has 3 pins 1x +24v 1x - 1x pwm

        Which is the pwm output?
        Outx-
        Or outx.tach

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          https://docs.duet3d.com/en/User_manual/Connecting_hardware/Fans_connecting#connecting-fans-to-duet-fan-pins

          Click the tab for 4wire fans.

          Z-Bot CoreXY Build | Thingiverse Profile

          Zsevenundefined 1 Reply Last reply Reply Quote 0
          • Zsevenundefined
            Zseven @Phaedrux
            last edited by

            @Phaedrux

            I have connected the fan and set the parameter Q1000. If I set the speed in the DWC to 95%, the motor burns out!

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              Can you give more detail about what exactly you are connecting?

              Z-Bot CoreXY Build | Thingiverse Profile

              Zsevenundefined 1 Reply Last reply Reply Quote 0
              • Zsevenundefined
                Zseven @Phaedrux
                last edited by

                @Phaedrux

                Hello ,
                I have
                +24V at Out5 / V_OutLC1
                -Out 5 / GND
                PWM at Out 5 / out5-

                in config.g

                M950 F2 C‘!out5’ Q1000
                M106 P2 S0.0 H-1 C ‘Blower’

                oliofundefined 1 Reply Last reply Reply Quote 0
                • oliofundefined
                  oliof @Zseven
                  last edited by oliof

                  @Zseven I assume this is a CPAP/vacuum blower control PCB and not a standard fan, is that correct?

                  <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

                  Zsevenundefined 1 Reply Last reply Reply Quote 0
                  • Zsevenundefined
                    Zseven @oliof
                    last edited by

                    @oliof

                    Yes !

                    oliofundefined 1 Reply Last reply Reply Quote 0
                    • oliofundefined
                      oliof @Zseven
                      last edited by

                      @Zseven then you need to give us more details. Type of blower, how everything is wired between the PCB and the Blower and the control board, etc.

                      I highly doubt the Duet board can burn out the big blower because those fan ports are limited to 1A; I assume the blowers pull more than that.

                      <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

                      Zsevenundefined 2 Replies Last reply Reply Quote 0
                      • Zsevenundefined
                        Zseven @oliof
                        last edited by

                        @oliof

                        Hello ,
                        I have requested the data sheet from the manufacturer.

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                        • Zsevenundefined
                          Zseven @oliof
                          last edited by

                          @oliof

                          ello ,
                          I have now got a replacement as the last fan has burnt out.

                          08-06-2024_08-37-38.jpg

                          DC7-24V brushless turbo fan motor 100000 rpm high speed aluminium alloy impeller with brushless motor and speed controller

                          I have now connected the fan direnkt to the 24V power supply and I can control it very well with the potentiometer

                          I have now measured the voltage at the potentiometer and between the red and black cable are 5V

                          The yellow cable should be the PWM signal.

                          How can I now control this fan with the Duet 6xd?

                          Witch pins ?

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                          • oliofundefined
                            oliof
                            last edited by

                            The wiring on the photo does not match the wiring on the PCB graphics.

                            If you could provide a link to the listing and/or a full spec sheet that would help. "PWM control" can mean different things, in this case it could be 0-5V for example which would require extra circuitry.

                            <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

                            Zsevenundefined 1 Reply Last reply Reply Quote 0
                            • Zsevenundefined
                              Zseven @oliof
                              last edited by

                              @oliof

                              I have fix it !

                              oliofundefined 1 Reply Last reply Reply Quote 0
                              • oliofundefined
                                oliof @Zseven
                                last edited by

                                @Zseven please share your fixed setup for the benefit of all (-;

                                <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

                                Zsevenundefined 1 Reply Last reply Reply Quote 0
                                • Zsevenundefined
                                  Zseven @oliof
                                  last edited by

                                  @oliof

                                  Hello ,
                                  here is my solution for the 6XD board

                                  17-06-2024_20-03-42.jpg

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