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    Where does the temperature daughter board go on Duet3?

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    • Kulitorumundefined
      Kulitorum
      last edited by

      I can't find anything in any documentation - Where do I install it, and in what orientation?

      Tried this - it seemed logical, is this correct?

      IMG_3046.JPG

      I'm connecting it to a Ultimaker K-Type thermocoupler - is my configuration correct?

      ; Heaters
      M308 S0 P"spi.cs0" Y"thermocouple-max31855" ; configure sensor 0 as thermocouple via CS pin spi.cs0
      M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
      M143 H0 S120 ; set temperature limit for heater 0 to 120C
      M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
      M140 H0 ; map heated bed to heater 0
      M308 S1 P"spi.cs1" Y"thermocouple-max31855" ; configure sensor 1 as thermocouple via CS pin spi.cs1
      M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
      M143 H1 S280 ; set temperature limit for heater 1 to 280C
      M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

      Thank you.

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      • aidarundefined
        aidar
        last edited by aidar

        From your picture, you are using Pt100 daughterboard. As far as i know, thermocouple needs another daughterboard, for thermocouple. Pt100 board will not work with thermocouples.
        https://duet3d.dozuki.com/Wiki/Thermocouple_daughter_board

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        • Kulitorumundefined
          Kulitorum
          last edited by Kulitorum

          Thank you - turns out the UM2 does not use Thermocoubles, but a PT100 RTD (Resistance Temperature Detectors) Device, so I did have the correct daughter board, I just had to short the solder pins (red circles) and my config (that works) is:

          ; Heaters
          M308 S0 P"spi.cs0" Y"rtd-max31865" ; configure sensor 0 as thermocouple via CS pin spi.cs0
          M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
          M143 H0 S120 ; set temperature limit for heater 0 to 120C
          M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
          M140 H0 ; map heated bed to heater 0
          M308 S1 P"spi.cs1" Y"rtd-max31865" ; configure sensor 1 as thermocouple via CS pin spi.cs1
          M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
          M143 H1 S280 ; set temperature limit for heater 1 to 280C
          M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

          IMG_3048.JPG

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            Have you seen this?

            https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors

            Z-Bot CoreXY Build | Thingiverse Profile

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