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    Z-Motors don't drive powered by external stepper driver

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    • fcwiltundefined
      fcwilt
      last edited by

      Hi,

      I see a few things that I believe need fixing.

      As I recall the Duet 2 WiFi does not support any values other than 16 in M350.

      And you don't include external drives there either.

      So I think you need to change it to M350 X16 Y16 I1

      Again as I recall when you have drive mapping like Y1:4 or Z5:6:7:8 you only using single values in M92, M566, M203, M201, M906.

      And you don't include external drivers in M906.

      So I think you would use the following:

      M92  X286.72   Y204.80   Z576.00  E420.00  ; set steps per mm
M566 X900.00   Y900.00   Z12.00   E120.00  ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00  Y6000.00  Z180.00  E1200.00 ; set maximum speeds (mm/min)
M201 X500.00   Y500.00   Z20.00   E250.00  ; set accelerations (mm/s^2)
M906 X1800     Y1800              E800 I30

      At least that is how my configuration is setup and the external drives work.

      The only other change you might want to try is the T values in the M569 commands.

      The values suggested to me were T2:2:10:10 since I had no specifications for my external drivers.

      If you have the specs and you know your current values are correct of course you should leave them as they are.

      Frederick

      Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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      • Inno 3Dundefined
        Inno 3D
        last edited by

        Hi Frederick,

        Thanks for your help.

        I changed the M92, M566, M203, M201, M906 to single values, as you said.

        But the Z-Motors are still not running.

        Do you have another Idea?

        Many Thanks!
        Lars

        fcwiltundefined 1 Reply Last reply Reply Quote 0
        • fcwiltundefined
          fcwilt @Inno 3D
          last edited by

          @Inno-3D said in Z-Motors don't drive powered by external stepper driver:

          Hi Frederick,

          Thanks for your help.

          I changed the M92, M566, M203, M201, M906 to single values, as you said.

          But the Z-Motors are still not running.

          Do you have another Idea?

          Many Thanks!
          Lars

          I just noticed the printer dimensions - that is huge!

          Anyway have the Z steppers ever worked?

          Frederick

          Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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          • Inno 3Dundefined
            Inno 3D
            last edited by

            Yes before the ampere of the one external stepper driver was changed while the system was running. It was changed to 4 ampere.

            I changed the motor after I saw, that the motor was damaged and changed the ampere to 1.5.

            But after that none of the 4 Motors will drive again.

            Thanks
            Lars

            fcwiltundefined 1 Reply Last reply Reply Quote 0
            • fcwiltundefined
              fcwilt @Inno 3D
              last edited by

              @Inno-3D said in Z-Motors don't drive powered by external stepper driver:

              Yes before the ampere of the one external stepper driver was changed while the system was running. It was changed to 4 ampere.

              I changed the motor after I saw, that the motor was damaged and changed the ampere to 1.5.

              But after that none of the 4 Motors will drive again.

              Thanks
              Lars

              On my external driver I have to set the active state of the Enable input to match the active state of the Enable output from the Duet.

              Perhaps that setting in your driver has changed?

              Frederick

              Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

              Inno 3Dundefined 1 Reply Last reply Reply Quote 0
              • Inno 3Dundefined
                Inno 3D @fcwilt
                last edited by

                I haven't this setting. I can only change the ampere and the microstepping.

                Thanks
                Lars

                fcwiltundefined 1 Reply Last reply Reply Quote 0
                • fcwiltundefined
                  fcwilt @Inno 3D
                  last edited by

                  @Inno-3D said in Z-Motors don't drive powered by external stepper driver:

                  I haven't this setting. I can only change the ampere and the microstepping.

                  Thanks
                  Lars

                  So you are not using the enable inputs on the driver?

                  Frederick

                  Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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                  • Inno 3Dundefined
                    Inno 3D
                    last edited by Inno 3D

                    I'm sorry that I haven't answered.

                    Of course I'm using the enable inputs. That was my fault. Can I check there, if they work?

                    Lars

                    fcwiltundefined 1 Reply Last reply Reply Quote 0
                    • fcwiltundefined
                      fcwilt @Inno 3D
                      last edited by

                      @Inno-3D said in Z-Motors don't drive powered by external stepper driver:

                      I'm sorry that I haven't answered.

                      Of course I'm using the enable inputs. That was my fault. Can I check there, if they work?

                      Lars

                      The examples given in the driver docs show connecting the controller (the Duet) to the driver via Open Collector outputs and Open Emitter outputs.

                      The docs also mention a logic high as being 4 to 5 volts.

                      The Duet breakout board provides 3.6 volt differential signals.

                      If the driver docs are accurate the 3.6 volt signals from the breakout board are not going to provide the needed voltage for a driver logic one.

                      How do you have the drivers wired to the breakout board?

                      Frederick

                      Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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                      • peterartechnoundefined
                        peterartechno
                        last edited by

                        @Inno-3D

                        I use Leadshine D808 stepper drivers and I had a problem of the pulselength of my signals. They required to be a minimum of 5.0 us. Right now you have M569 P* T2.5:2.5:5:5, you could try that. It also recommends that in the manual of your stepper driver: https://www.damencnc.com/userdata/file/1750-1_DM556_datasheet.pdf

                        When using external stepper drivers, the M305 does not do anything since you use the dipswitches on your driver.

                        what is your wiring setup, do you have power-sourcing or sinking? I have all my + pins (EN+, DIR+, PUL+) powered on 5V, where I use the - pins for pulses.

                        Did you check the fuses on your board?

                        I would really like to see a picture of your printer if possible! I have one of X900 Y1400 Z400 and thought that was already massive!

                        I also use the expansion breakout board and that gives me 3.3V but using the 5V setup as previously explained, I can change the difference in voltage which makes a switch.

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