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    Short-to-ground on drivers

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    • kingfisherundefined
      kingfisher
      last edited by

      M144
      File 0:/gcodes/TRex_Feet.gcode selected for printing
      Error: Short-to-ground on drivers 0 1 4
      Error: Over temperature shutdown on drivers 0 1 4
      Error: Short-to-ground on drivers 0 2 4
      Error: Over temperature shutdown on drivers 0 2 4
      Error: Short-to-ground on drivers 0 1
      Error: Over temperature shutdown on drivers 0 1

      Came home to start a print (After a sucessfull four hour print last night) and I'm getting the error above?

      Manual homing and movements appears to work?

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      • kingfisherundefined
        kingfisher
        last edited by

        Here is the driver set up in my config: M584 X3 Y2 Z0:1 E4

        Just checked the wiring and it looks OK?

        Manual homing works, but the Y stepper starts making a horrible noise and doesn't move when i try to print

        I tried a recent print that worked and the same thing happens

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        • dc42undefined
          dc42 administrators
          last edited by

          Sounds like the SPI signal from the drivers isn't getting to the main processor. Check for conductive debris on top of the Duet that could be causing a short between pins of the stepper driver chips or the processor. If the problem persists and your Duet is still under warranty, ask for it to be repaired or replaced.

          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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          • kingfisherundefined
            kingfisher
            last edited by

            Thanks
            Its only a couple of months old.
            I'll have a peak through the case and see if the are any obvious issues…

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            • kingfisherundefined
              kingfisher
              last edited by

              I've taken the cover off and checked the wiring/board.
              Same issue
              I can home and move using the web interface but as soon as I start a print it crashes with the short to ground error
              Who do i contact for UK support/returns?
              Thanks

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              • dc42undefined
                dc42 administrators
                last edited by

                Email the details to info at Duet3D dot com.

                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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                • kingfisherundefined
                  kingfisher
                  last edited by

                  OK??? New board has arrived (Thanks for the great customer support)

                  But it might be user error (or the stepper motors?)

                  I've, re wired the new board (Couldn't see any wiring issues).

                  Then on the new board: Homing on all axis works but when I go to print the get a similar error?

                  Error: Short-to-ground on drivers 4
                  Error: Over temperature shutdown on drivers 4
                  20:20:00Error: Short-to-ground on drivers 1
                  Error: Over temperature shutdown on drivers 1
                  20:19:43Error: Short-to-ground on drivers 4
                  Error: Over temperature shutdown on drivers 4

                  I don't get why homing and moving the motors by the interface works but as soon as i go to print this happens?

                  This error started after months off error free printing??

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                  • kingfisherundefined
                    kingfisher
                    last edited by

                    Selected Config Lines if that helps:

                    M584 X3 Y2 Z0:1 E4

                    M906 X800 Y800 Z800 E300 I30

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                    • kingfisherundefined
                      kingfisher
                      last edited by

                      The machine Properties don't appear to match my config (Assuming I'm reading this correctly?):

                      https://drive.google.com/file/d/1VZg7r0YN19Ev95qZ2SvOHdI4RbZNxuH7/view?usp=sharing

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                      • dc42undefined
                        dc42 administrators
                        last edited by

                        The error is being reported on driver 4 which you have configured as an extruder. That driver won't be enabled until you first do some extrusion or retraction. That's why it's not being reported until you start printing.

                        Could it be that you have a short between one of the motor windings and the case of the motor?

                        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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                        • kingfisherundefined
                          kingfisher
                          last edited by

                          Thanks, I'll change that motor tomorrow…
                          BTW, I can heat it up and extrude manually.
                          Everything works from the web interface?

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                          • kingfisherundefined
                            kingfisher
                            last edited by

                            I'm now getting the error on driver 1 on a quick test before stopping for the night

                            22:48:53Error: Short-to-ground on drivers 1
                            Error: Over temperature shutdown on drivers 1
                            22:48:28Error: Short-to-ground on drivers 1
                            Error: Over temperature shutdown on drivers 1
                            22:47:56Error: Short-to-ground on drivers 1
                            Error: Over temperature shutdown on drivers 1

                            I'll triple check the wiring and look at swapping the motors tomorrow

                            Why would the manual movements and extrusion work but not during a print? (Looks like its not a duet fault, but Its driving me mad!)

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                            • deckingmanundefined
                              deckingman
                              last edited by

                              @kingfisher:

                              …................................
                              Why would the manual movements and extrusion work but not during a print? (Looks like its not a duet fault, but Its driving me mad!)

                              You have driver 1 mapped to Z so X Y and E moves don't use that driver but when you are printing, there will be Z movement. Have you tried a manual Z move?

                              Ian
                              https://somei3deas.wordpress.com/
                              https://www.youtube.com/@deckingman

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                              • dc42undefined
                                dc42 administrators
                                last edited by

                                @kingfisher:

                                OK??? New board has arrived (Thanks for the great customer support)

                                But it might be user error (or the stepper motors?)

                                I've, re wired the new board (Couldn't see any wiring issues).

                                Then on the new board: Homing on all axis works but when I go to print the get a similar error?

                                Error: Short-to-ground on drivers 4
                                Error: Over temperature shutdown on drivers 4
                                20:20:00Error: Short-to-ground on drivers 1
                                Error: Over temperature shutdown on drivers 1
                                20:19:43Error: Short-to-ground on drivers 4
                                Error: Over temperature shutdown on drivers 4

                                I don't get why homing and moving the motors by the interface works but as soon as i go to print this happens?

                                This error started after months off error free printing??

                                Do you have anything connected to the Duet expansion connector?

                                What power supply voltage are you using?

                                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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                                • kingfisherundefined
                                  kingfisher
                                  last edited by

                                  @deckingman:

                                  @kingfisher:

                                  …................................
                                  Why would the manual movements and extrusion work but not during a print? (Looks like its not a duet fault, but Its driving me mad!)

                                  You have driver 1 mapped to Z so X Y and E moves don't use that driver but when you are printing, there will be Z movement. Have you tried a manual Z move?

                                  Yes Z moves fine with the Web GUI. I can even do the full bed compensation routine, but the short-to-ground error happens as soon as I try to print.

                                  Current thoughts are around issues with the stepper motors
                                  Will switch the Z back to one driver
                                  Tripple check the wiring
                                  Then look at swapping the steppers out

                                  Other thoughts include the PSU, when monitoring the compensation routine late last night the voltage dropped to 11v at one point (I've not noticed it fluctuate before)

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                                  • dc42undefined
                                    dc42 administrators
                                    last edited by

                                    Yes it could be the PSU. The stepper drivers shut down if the voltage falls below about 10V. Please run M122 and see what the count of "Under voltage events" is. Note, this counter is reset to zero after you run M122.

                                    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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                                    • kingfisherundefined
                                      kingfisher
                                      last edited by

                                      Thanks - I'll move the PSU test up the list. (I've got a spare I can swap over easily tonight)
                                      It might encourage me to make the 24v switch I've been planning for a while…
                                      (Thanks again for the continued support)

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                                      • Kulitorumundefined
                                        Kulitorum
                                        last edited by

                                        I am getting the same with 20beta1, looks like false errors to me.

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                                        • kingfisherundefined
                                          kingfisher
                                          last edited by

                                          Think I've got a different issue (Prob a hardware related diagnosis now?)
                                          I can't print, the stepper motor go haywire when a print starts.
                                          I'll undertake tests this evening, but my money is on the PSU.
                                          Nothing changed in my set up - I finished a 4 hour print, tried to start another and the errors started (The PSU is now the most likely cause)

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                                          • dc42undefined
                                            dc42 administrators
                                            last edited by

                                            @Kulitorum:

                                            I am getting the same with 20beta1, looks like false errors to me.

                                            Please try beta 6 - the driver monitoring code works differently now.

                                            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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