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    Bed Heater fault [3.4.B5]

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    • T3P3Tonyundefined
      T3P3Tony administrators @PCR
      last edited by

      @pcr please send the M307 command that the tuning suggested

      www.duet3d.com

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      • SIamundefined
        SIam @SIam
        last edited by

        I hope that I have not bored you, but the Heater fault does still persist in 3.4.b6
        after the PID Tuning with 3.4.b6 I got this result:

        M307 H0 B0 R0.460 C286.3 D0.90 S1.00 V24.3
        

        and here is the old known error message:

        6.11.2021, 19:31:14	Error: Heater 0 fault: at 53.2°C temperature is rising at 0.1°C/sec, well below the expected 0.3°C/sec
        

        😢😭

        Hypercube-Evolution-Hybrid, Piezo Orion, Orbiter
        Duet WiFi 1.02 or later + DueX5
        RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta4 (2021-09-27 11:30:36)
        Duet WiFi Server: 1.26
        Duet Web Control 3.4.0beta4 (2021-09-27)

        T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
        • T3P3Tonyundefined
          T3P3Tony administrators @SIam
          last edited by

          @siam I am not sure why the tuning is reporting the bed can heat at 0.46 deg/s but is only heating at 0.1 deg/s can you try changing your M307 command to lower the R parameter (try R0.3).

          www.duet3d.com

          SIamundefined 1 Reply Last reply Reply Quote 0
          • SIamundefined
            SIam @T3P3Tony
            last edited by SIam

            @t3p3tony said in Bed Heater fault [3.4.B5]:

            I am not sure why the tuning is reporting the bed can heat at 0.46 deg/s but is only heating at 0.1 deg/s

            then there are two of us 😉

            If I reduce the R value, The Problem is gone, but I think that this is not the solution maybe (or better Hopefully) I'm wrong, but I think if the final rrf3.4 is out with this PID algorithm more people will have this problem.

            Hypercube-Evolution-Hybrid, Piezo Orion, Orbiter
            Duet WiFi 1.02 or later + DueX5
            RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta4 (2021-09-27 11:30:36)
            Duet WiFi Server: 1.26
            Duet Web Control 3.4.0beta4 (2021-09-27)

            T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
            • T3P3Tonyundefined
              T3P3Tony administrators @SIam
              last edited by

              @siam can you post an image of the temp graph that point at which you get the fault, and let me know the target temperature. That way we can see if it's faulting when the PID may be slowing the heating rate to not overshoot, or during the main section of full power heatup.

              www.duet3d.com

              SIamundefined 1 Reply Last reply Reply Quote 0
              • SIamundefined
                SIam @T3P3Tony
                last edited by

                @t3p3tony Sorry for The delay I had last week, a small working accident. I recorded a Video from The heating Process, you can find the heating error at 1:20 min. 2:40 min. and 4:10 min.

                https://kleinersonnenschein.eu/heaterror.mp4 if you need more tests, let me know!

                Hypercube-Evolution-Hybrid, Piezo Orion, Orbiter
                Duet WiFi 1.02 or later + DueX5
                RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta4 (2021-09-27 11:30:36)
                Duet WiFi Server: 1.26
                Duet Web Control 3.4.0beta4 (2021-09-27)

                T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                • T3P3Tonyundefined
                  T3P3Tony administrators @SIam
                  last edited by

                  @siam thanks that's helpful.

                  I measured the first minute of your video the bed heater raised by 17.7 degrees in 60 seconds so that is an R of 0.295 so Changing R to 0.29 is a good idea.

                  Once you have done that, If you don't mind recording a M303 tuning for the bed that would be super helpful. I am curious why the tuning is suggesting an R of 0.46

                  www.duet3d.com

                  SIamundefined 2 Replies Last reply Reply Quote 0
                  • SIamundefined
                    SIam @T3P3Tony
                    last edited by

                    @t3p3tony with R0.29 the heating was successful! Now I have to wait for cooldown of the bed, and then I will start the PID tuning I think this I can do this tomorrow

                    Hypercube-Evolution-Hybrid, Piezo Orion, Orbiter
                    Duet WiFi 1.02 or later + DueX5
                    RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta4 (2021-09-27 11:30:36)
                    Duet WiFi Server: 1.26
                    Duet Web Control 3.4.0beta4 (2021-09-27)

                    1 Reply Last reply Reply Quote 1
                    • SIamundefined
                      SIam @T3P3Tony
                      last edited by

                      @t3p3tony and here is a video from the PID tuning process https://kleinersonnenschein.eu/pidtuning.mp4

                      Hypercube-Evolution-Hybrid, Piezo Orion, Orbiter
                      Duet WiFi 1.02 or later + DueX5
                      RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta4 (2021-09-27 11:30:36)
                      Duet WiFi Server: 1.26
                      Duet Web Control 3.4.0beta4 (2021-09-27)

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                      • SIamundefined SIam referenced this topic
                      • btmcmahanundefined
                        btmcmahan
                        last edited by btmcmahan

                        Hey @SIam Did you find a solution for this? I've having the same problem with firmware 3.4.0. After reading this thread, I think I can tweak my R#, but this seems like a band-aid not a real solution. Obviously I would prefer if Auto-Tune gave me working values.

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                        • Skanundefined
                          Skan
                          last edited by

                          Did anyone fix this issue? I am having the same issue with my large bed

                          jay_s_ukundefined 1 Reply Last reply Reply Quote 0
                          • jay_s_ukundefined
                            jay_s_uk @Skan
                            last edited by

                            @Skan can you start a new thread please and provide all the relevant information

                            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

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