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    Thermistor Semitec 104nt config problem

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    • Branzoundefined
      Branzo
      last edited by

      Hi everybody

      I am using a Duet 2 Ethernet to control a custom extruder.
      At this stage I do not need any axis or extruding control just Heating and Temperature reading/control

      I took heater cartridge and thermistor from a E3D TITAN AERO KIT
      according to E3D website the themistor should be a Semitec 104NT

      After configuring firmware accessing webinterface I get a temperature of -273.1 for tool 0

      my cfg is set like this:

      M308 S0 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8
      M950 H0 C"e0heat" T0 ; create nozzle heater output on e0heat and map it to sensor 0
      M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
      M143 H0 S500 ; set temperature limit for heater 0 to 500C

      ; Tool 0
      M563 P0 D0 H0 F0 ; define tool 0
      G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
      G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

      I am pretty sure that everything is wired correctly and I searchd for similar topic on this forum
      like this one link text
      but even trying to use different parameters combination my temperature reading is alway -273.1 °C

      can anyone help me?
      Thanks a lot, best regards

      Branzoundefined 1 Reply Last reply Reply Quote 0
      • Branzoundefined
        Branzo @Branzo
        last edited by

        @Branzo Ok little update, i changed config like this

        M308 S0 P"bedtemp" Y"thermistor" T100000 B4725 C7.06e-8

        and I get a temperature value

        is it a problem of pin name?
        are stil e0temp and e1temp valid pin names?

        may be a hardware problem on the board? how to check it?

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

          @Branzo all of those pin names are valid. post a photo to show where you've wired it to

          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

          Branzoundefined 1 Reply Last reply Reply Quote 1
          • apakundefined
            apak
            last edited by apak

            @Branzo said in Thermistor Semitec 104nt config problem:

            M308 S0 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8
            M950 H0 C"e0heat" T0 ; create nozzle heater output on e0heat and map it to sensor 0
            M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
            M143 H0 S500 ; set temperature limit for heater 0 to 500C

            if you declared S0 and H0 has the heated bed, need to declare S1 and H1 as the heater

            M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.060000e-8 A"Nozzle E0" R4700 ; E3d configure sensor 0 as thermistor on pin e0temp
            M950 H1 C"e0heat" T1                                        ; create nozzle heater output on e0heat and map it to sensor 2
            M143 H1 S285 A2                                         ; disable temporarily H1 if temp exceeds 285C
            M143 H1 S295 A0                                         ; heater fault H1 if temp exceeds 295C
            M307 H1 B0 S1.00                                        ; disable bang-bang mode for heater  and set PWM limit
            M570 H1 P10 T30                                      ; heater fault for 10 seg of 30ºC excursion
            
            1 Reply Last reply Reply Quote 1
            • Branzoundefined
              Branzo @jay_s_uk
              last edited by

              @jay_s_uk I go to bury myself deep underground
              checking wiring I have found out I was looking the board upsidedown and I wired the heaters to "always on fans" pin
              I feel ashamed 😞

              so sorry guys now everything seems working

              1 Reply Last reply Reply Quote 3
              • Branzoundefined Branzo has marked this topic as solved
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