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    Thermistor at 2000c

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    • Phaedruxundefined
      Phaedrux Moderator @Bewaren
      last edited by

      The web interface was updated along with the firmware.

      When you send M98 Pconfig.g now do you get any errors?

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      • Bewarenundefined
        Bewaren @Phaedrux
        last edited by

        @Phaedrux

        HTTP is enabled on port 80
        FTP is enabled on port 21
        TELNET is enabled on port 23
        Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 365C

        This is what I am getting now, I am also struggling with the smart effector wiring for the thermistor, I am using a PT100 Thermistor, 2 pins but I am trying to figure out which pins I need to connect it too.

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          If you're using a PT100 your config is incorrect.

          M308 S1 P"e0temp" Y"thermistor" T100000 B4138      ; configure sensor 1 as thermistor on pin e0temp
          M950 H1 C"e0heat" T1                               ; create nozzle heater output on e0heat and map it to sensor 1
          M307 H1 B0 S1.00                                   ; disable bang-bang mode for heater  and set PWM limit
          

          This is for a thermistor. In the configurator you'd need to choose which channel you have the PT100 connected to.

          Do you have the PT100 daughter board?

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          • Bewarenundefined
            Bewaren @Phaedrux
            last edited by

            @Phaedrux I do not no, I am using the thermistor provided with the E3D Hotend for the smart effector, I believe it is a PT100, correct? It was a while back since I bought it.

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            • Bewarenundefined
              Bewaren @Phaedrux
              last edited by

              @Phaedrux I have pins T3 - T4 wired up, is that correct?

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                I'm not sure what you bought. 😀

                To use a pt100 you'll need the pt100 daughter board.

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  Can you post some photos?

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                  • Bewarenundefined
                    Bewaren @Phaedrux
                    last edited by

                    @Phaedrux alt text20200616_005347.jpg 20200616_005354.jpg

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                    • Bewarenundefined
                      Bewaren @Phaedrux
                      last edited by

                      @Phaedrux Hope these help

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                      • Bewarenundefined
                        Bewaren
                        last edited by

                        The wiring it a little messy at the moment, please excuse it xD

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                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          Well we need to verify what sensor you are actually using. Is it a thermistor or PT100. If it's a PT100 you will need the daughter board before you can use it.

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                          • Bewarenundefined
                            Bewaren @Phaedrux
                            last edited by

                            @Phaedrux 20200616_010917.jpg

                            This is the thermistors or PT100 I am using, not sure if it helps identify it

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                            • Phaedruxundefined
                              Phaedrux Moderator
                              last edited by Phaedrux

                              I believe the E3D PT100s use red wires and the thermistors are blue. But I'm not sure if that's a hard rule, but I think that's generally the case.

                              https://e3d-online.com/collections/printer-parts-electrical/products/thermistor-cartridge
                              https://e3d-online.com/collections/printer-parts-electrical/products/pt100-temperature-sensor

                              You should try to verify with your invoice or email confirmation from your purchase to be sure.

                              You'll need a daughter board to be able to read the PT100.
                              https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors

                              https://e3d-online.com/products/pt100-daughterboard-for-duet-wifi?_pos=4&_sid=8859bba4b&_ss=r

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                              • Bewarenundefined
                                Bewaren
                                last edited by

                                Alright I can confirm it's a PT100, found the invoice. I will get one ordered asap.

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                                • Phaedruxundefined
                                  Phaedrux Moderator
                                  last edited by

                                  Glad we got that sorted out. Once you have the daughterboard installed and connected you'll need to make a change to your temp sensor config to point to the PT100.

                                  M308 S1 P"spi.cs1" Y"rtd-max31865"             ; configure sensor 1 as thermocouple via CS pin spi.cs1
                                  M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
                                  M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
                                  

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                                  • A Former User?
                                    A Former User @Phaedrux
                                    last edited by

                                    You should try to verify with your invoice or email confirmation from your purchase to be sure.

                                    suppose its still possible they could have shipped the wrong one, to be sure use a multimeter and measure the resistance at room temperature; PT100 should be about 100 ohm, and PT1000 should be about 1000 ohm.

                                    (Techincally PT100 is 100 ohm at 0°C and closer to 110 at room temperature, and 1100 ohm for PT1000)

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                                    • Bewarenundefined
                                      Bewaren @A Former User
                                      last edited by

                                      @bearer comes back at 109 ohm

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                                      • sg2020undefined
                                        sg2020 @Phaedrux
                                        last edited by

                                        @phaedrux I was also trying to get my E3D PT100 sensor to work and your code helped. Could you explain why this works? Why does it need p"spi.cs1"? why is it configuring the sensor 1 as a thermocouple?

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                                        • Phaedruxundefined
                                          Phaedrux Moderator @sg2020
                                          last edited by

                                          @sg2020 said in Thermistor at 2000c:

                                          @phaedrux I was also trying to get my E3D PT100 sensor to work and your code helped. Could you explain why this works? Why does it need p"spi.cs1"? why is it configuring the sensor 1 as a thermocouple?

                                          Ignore the comment on that line. It's not actually a thermocouple, that's just the comment that the config tool has added. It seems to be the same regardless of what type of daughterboard you've chosen.

                                          The important thing is that you're telling it what pin you're using (spi.cs1) and what type of daughterboard chip you're using (rtd-max31865).

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                                          • tony449777undefined
                                            tony449777 @Phaedrux
                                            last edited by

                                            @phaedrux So if the channel 1 on the card is “spi.cs1”
                                            And you have one daughter board with the two ports, then is the second port for the same card “spi.cs2”?

                                            Is there any pages that you can recommend that would help me understand what this means?

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