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    Breakout board produces no 5v signals

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    • leonknookundefined
      leonknook @adavidm
      last edited by

      @adavidm
      Yes I have changed P1 to P5 and nothing.
      I thought the drive mapping should do the job but I understand you have to assign the drive (on the break out board) in the M569 also.

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      • dc42undefined
        dc42 administrators
        last edited by dc42

        @leonknook said in Breakout board produces no 5v signals:

        M569 P5 R1 T2 ;does not work

        The breakout board handles the inversion of the enable signal, so you need R0 in that command, not R1. If it still doesn't work, try T4 instead of T2.

        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

        leonknookundefined 1 Reply Last reply Reply Quote 0
        • leonknookundefined
          leonknook @dc42
          last edited by

          @dc42 said in Breakout board produces no 5v signals:

          M569 P5 R1 T2

          No, sorry no results. Second led is pulsing but it seems there is no current at all to drive the motor.
          Extra info: the stepper driver has a 48v dc connection
          The attached motor is a standard nema 17 to see if it works (must be later on a nema23)

          ; Drives
          M569 P0 S1 ; Drive 0 goes forwards
          ;M569 P1 S1 ;does not work
          ;M569 P5 S0 ;does not work
          ;M569 P5 R1 ;does not work
          ;M569 P5 R1 T1 ;does not work
          ;M569 P5 R1 T2 ;does not work
          ;M569 P5 R1 T5 ;does not work
          ;M569 P5 R0 T2 ;does not work
          M569 P5 R0 T4 ; does not work

          M569 P2 S1 ; Drive 2 goes forwards
          M569 P3 S1 ; Drive 3 goes forwards

          M584 X0 Y5 Z2 E3 ; Apply custom drive mapping
          M564 S0 H0

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          • dc42undefined
            dc42 administrators
            last edited by dc42

            Which is the "second LED" you refer to?

            After you send the command to move Y, do you get +3.3V or greater on ENA+ relative to ENA- ? It should be the other way round after you reset the Duet and before you send the first command to move Y.

            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

            leonknookundefined 1 Reply Last reply Reply Quote 0
            • leonknookundefined
              leonknook @dc42
              last edited by leonknook

              @dc42

              After a reset off everything I measure this -3.53v
              After pushing the y move button the voltage change to plus +3.53v

              The led down under is bright all the time
              The led above is pulsing when pushing the move button.

              Same measurement on the breakout board self without stepper driver connected.

              0_1539245494118_en measure.jpg

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              • leonknookundefined
                leonknook
                last edited by

                My problem is still not solved. If there are no options left over please let me know.
                I will trow this well developed board out of the window and never look at it again.

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                • dc42undefined
                  dc42 administrators
                  last edited by dc42

                  The LEDs suggest that your driver module is receiving the signals from the Duet. Are you certain that you have connected the stepper motor correctly, and set an appropriate microstepping and motor current on the switches? Does the motor spindle lock when the ENA voltage changes from negative to positive?

                  You can increase the drive voltage to 5V by connecting +ENA, +PUL and +DIR to +5V (which is available on the servo connector of the breakout board) instead of to the individual + outputs; but I really don't think that drive voltage is the problem.

                  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

                  leonknookundefined 1 Reply Last reply Reply Quote 0
                  • leonknookundefined
                    leonknook @dc42
                    last edited by

                    @dc42
                    The TB6600 stepper driver seems to be not a suitable driver for the duet.
                    This week arrived the DM556 drivers and they work without any problems.

                    Thanks for all the help!

                    Kind regards,
                    Leon.

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                    • leonknookundefined
                      leonknook
                      last edited by

                      To complete this thread for others. I had to use the 5v connection from the breakout board to make the DM556 to work properly. For some reason the 3.3v voltage from the +signals ENA PUL and DIR does not do the job for this driver.

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                      • dc42undefined
                        dc42 administrators
                        last edited by

                        Thanks for the info. We will feed this input into planned design changes, and consider getting a TB6600-based driver to test.

                        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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