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    How to configure thermal runaway settings for Enclosure Heater ?

    Tuning and tweaking
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    • simonboydfoley
      simonboydfoley last edited by

      I'm not using a M307 to configure an enclosure heater which is probably my problem, but I followed a guide on the Duet Site.;

      My config is below.

      However I keep getting thermal cutouts because the thermal runaway setting default is for a hotEnd and expects 1.7 C increase every 1 sec which is too high for an enclosure heater settings.

      ; H=2 Hot End 2 / Chamber Heater
      M141 H2 ; Assign chamber heater to heater 2
      M305 P2 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 2
      M301 H2 B1 ; Set heater 2 to bang-bang mode
      M143 H2 S50 ; Set temperature limit for heater 2 to 50C

      I cant seem to see where I can override the default thermal runaway settings 😞

      Any help appreciated

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      • dc42
        dc42 administrators last edited by dc42

        You can only change the heater protection settings using M307. If you want to set the patameters manually, see duet3d.dozuki.com/Wiki/Tuning_the_heater_temperature_control#Section_Setting_the_model_parameters_manually.

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