Problem with virtual heater for the drivers (RRF3)



  • Hi,
    I had the both virtual sensors in RRF2.05 running without any problem.
    When switching to RRF3 (actual 3.01RC2) the tempearture for drivers shows allways 0.0°.
    The temp for MCU is shown correct.

    Here are the lines from config.g

    M308 S4 P"mcu-temp" Y"mcu-temp" A"MCU"					  ; set virtual heater for MCU
    M308 S5 P"drivers"  Y"drivers" A"Driver"				  ; set virtual heater for stepper drivers
    

    V_Sensor.JPG

    Thank you for your ideas!


  • administrators

    @tom_Nbg said in Problem with virtual heater for the drivers (RRF3):

    When switching to RRF3 (actual 3.01RC2) the tempearture for drivers shows allways 0.0°.

    That's normal. The drivers don't report their temperature, just whether it is normal (below about 100C), over temperature warning (100-130C) or over temperature error (above 130C). So RRF always reports 0, 100 or 130.



  • Thank you!
    I thought I had seen 20° before in 2.05.... so it seems I've mixed up something...


  • administrators

    There was talk of having drivers report 0C when not enabled and something like 50C when enabled, but that hasn't been implemented. It's not clear to me that 50C would be the correct value. For example, one of my printers has a fan that turns on when the MCU temperature exceeds 45C or the drivers give an overheat warning. With enabled drivers reporting 50C, that would always turn the fan on, which I don't want to do because it isn't necessary. But a user running the drivers at 2A current probably would want to turn the fan on any time the drivers are enabled.


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