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Motor driver destroyed?

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Duet Hardware and wiring
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  • undefined
    buckker
    last edited by 14 Sept 2022, 09:12

    Hi

    I'm not sure if I destroyed the extruder motor driver on my new Duet Wifi. After testing all functions, the extruder motor made some strange noises. I find out that the extruder phase cables are wrong connected to the 4pin connector. The Duet reported a Phase A short to ground error. After that I plugged in the cables correctly. Unfortunately the error still appears. The motors phase resistance is 3mOhm (both phases) as it should be. I also measured the phase resistance on the Duet board. One phase of the faulty motor output only have 3MOhm resistance. All other phases (also from the other correct working motor drivers) have a resistance of approximately 12MOhm.

    Is the motor driver destroyed?

    Many thanks in advance

    Best regards

    Michael

    undefined 1 Reply Last reply 14 Sept 2022, 09:17 Reply Quote 0
    • undefined
      jay_s_uk @buckker
      last edited by 14 Sept 2022, 09:17

      @buckker sounds like it. can you post a high res picture of the driver with the issue?

      Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

      undefined 1 Reply Last reply 14 Sept 2022, 10:09 Reply Quote 0
      • undefined
        buckker @jay_s_uk
        last edited by 14 Sept 2022, 10:09

        Yes, of course:

        DSC06816.JPG DSC06815.JPG

        The E0 driver is faulty.

        undefined 1 Reply Last reply 14 Sept 2022, 10:23 Reply Quote 0
        • undefined
          jay_s_uk @buckker
          last edited by 14 Sept 2022, 10:23

          @buckker no scorch marks but i've seen drivers fail without them.
          it would need a repair i think.
          you can always use driver E1 instead if you're not using it

          Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

          undefined 1 Reply Last reply 14 Sept 2022, 10:35 Reply Quote 0
          • undefined
            buckker @jay_s_uk
            last edited by 14 Sept 2022, 10:35

            @jay_s_uk Thanks for your help. I already use E1 for the second z-axis motor. Should I pay attention to something special if I buy a replacement chip?

            undefined 1 Reply Last reply 14 Sept 2022, 10:36 Reply Quote 0
            • undefined
              jay_s_uk @buckker
              last edited by 14 Sept 2022, 10:36

              @buckker no, nothing i'm aware of.
              You'll need a hot air station and a heated plate to be able to change the chip

              Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

              undefined 1 Reply Last reply 14 Sept 2022, 10:50 Reply Quote 0
              • undefined
                dc42 administrators @jay_s_uk
                last edited by 14 Sept 2022, 10:50

                @jay_s_uk @buckker the TMC2660 doesn't have a thermal pad underneath, so it's also possible to remove the old chip using low melting point solder such as Chipquik.

                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

                undefined 1 Reply Last reply 14 Sept 2022, 10:54 Reply Quote 0
                • undefined
                  jay_s_uk @dc42
                  last edited by 14 Sept 2022, 10:54

                  @dc42 yes, good point

                  Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                  undefined 1 Reply Last reply 14 Sept 2022, 11:37 Reply Quote 0
                  • undefined
                    buckker @jay_s_uk
                    last edited by 14 Sept 2022, 11:37

                    thanks to all

                    Do you have a source for a original TMC2660 chips? My favorite electronic store is out of stock....

                    undefined 1 Reply Last reply 14 Sept 2022, 11:43 Reply Quote 0
                    • undefined
                      jay_s_uk @buckker
                      last edited by 14 Sept 2022, 11:43

                      @buckker i use damaged duet 2 boards as a supply of parts. where are you based?

                      Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                      undefined 1 Reply Last reply 14 Sept 2022, 12:19 Reply Quote 0
                      • undefined
                        buckker @jay_s_uk
                        last edited by buckker 14 Sept 2022, 12:19

                        @jay_s_uk In Switzerland

                        Is it possible that the TMC 2660-PA is no longer in production?

                        Does the TMC 2660C-PA also works? This driver is available at Digikey.

                        https://www.digikey.ch/en/products/detail/trinamic-motion-control-gmbh/TMC2660C-PA/4500212

                        undefined 1 Reply Last reply 14 Sept 2022, 12:20 Reply Quote 0
                        • undefined
                          jay_s_uk @buckker
                          last edited by 14 Sept 2022, 12:20

                          @buckker yes, see here https://forum.duet3d.com/topic/29667/duet-wifi-stepper-driver-chips/5?_=1663045215718

                          Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                          undefined 1 Reply Last reply 14 Sept 2022, 12:36 Reply Quote 1
                          • undefined
                            buckker @jay_s_uk
                            last edited by 14 Sept 2022, 12:36

                            @jay_s_uk great, I will order some TMC 2660C-PA.

                            Many thanks for your help😊

                            1 Reply Last reply Reply Quote 1
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