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    Duet 3 6HC input voltage and psu selection!

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    • weed2all
      weed2all last edited by weed2all

      Hello, I've seen the posts about voltages and menawell LRS-350-36 PSU to use with the duet 3 6HC board, though is unclear what to use...i see the max voltage input for duet 3 board is 32v, when I crank down the regulator of my lrs-350-36 psu it only gets to 32.4v...seen a post where a user said that his psu(the same model of mine) can be lowered at 30v but mine doesn't...
      So what psu you all use to be within limitation of the duet 6HC board?
      On the same note searching for adequate psu I've find the meanwell RSP-320-27 witch is a 27v psu but it can go up to 31.5v according meanwell datasheet...

      https://www.thingiverse.com/weed2all/designs

      fcwilt 1 Reply Last reply Reply Quote 0
      • fcwilt
        fcwilt @weed2all last edited by fcwilt

        @weed2all

        I just purchase a Mean Well unit rated at 24 Volts DC at a suitable current, the current being determined by the devices drawing current - steppers, heaters, fans, etc.

        Here is one I purchased for a small printer with an AC power bed heater: NES-350-24

        With the bed heater on AC the power needed for the DC loads was within the rating of this power supply.

        Frederick

        Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

        weed2all 1 Reply Last reply Reply Quote 1
        • weed2all
          weed2all @fcwilt last edited by

          @fcwilt I have plenty 24v psu lrs-350-24...though I wanted to use 32v on the duet 3 6HC on my cnc because of the nema 23 steppers

          https://www.thingiverse.com/weed2all/designs

          fcwilt 1 Reply Last reply Reply Quote 0
          • fcwilt
            fcwilt @weed2all last edited by

            @weed2all said in Duet 3 6HC input voltage and psu selection!:

            @fcwilt I have plenty 24v psu lrs-350-24...though I wanted to use 32v on the duet 3 6HC on my cnc because of the nema 23 steppers

            Got it.

            I see lots of 24 and 36 but not much in between - at least readily available.

            You could always use a 24 and a 5 in series. With the typical adjustments 32 might be doable.

            Frederick

            Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

            weed2all 1 Reply Last reply Reply Quote 0
            • weed2all
              weed2all @fcwilt last edited by

              @fcwilt yup that why I asked...seams the 27v will be the right choice getting it up to 31.5v...320watt is sufficient for my cnc...I only power the motors...no heaters, no other thing that need power...maybe a fan to cool the board...though tmc5160 used at 2.2 amp on each motor don't even get worm

              https://www.thingiverse.com/weed2all/designs

              1 Reply Last reply Reply Quote 1
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