Fan assignment to tool, no thermocouple?



  • Hello,

    I use Heater 2 for chamber on the duet wifi and connect Fans to P2 output.

    Can I do that when I turn on heating the fan switches on immediately and when turn off heating the fan shuts down.?
    But i need to do this on the P2 fan output, so that I can restrict the speed ,,F250,,

    I tried different combinations like ,,M106 P2 H2,, ,,M563 P2 D2 H2 F2,, and others. I tried to assign but fan no react.


  • administrators

    Which Duet are you using?



  • Duet 2 Wifi New version v1.04


  • administrators

    The correct command is M106 P2 H2 Tnn where nn is the temperature at which you want the fan to turn on. You can also add an S parameter to limit the fan speed, although for thermostatic fans the firmware enforces a minimum S0.5.


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