Heating fault (rising too slowly, RRF 3.01 from RRF 2.05)



  • Hi,

    I've just updated the FW from 2.05 to 3.01. Everythings seems to work fine (after some small issues).

    But now I've got this problem:
    Heater_fault.JPG
    The bed is heating - I see it at the rising temp. (which is indeed slower than before with 2.05)

    With 2.05 I had no problems:
    Here my old 2.05-Config:

    M307 H0 B0 S1.00                                 ; disable bang-bang mode for the bed heater and set PWM limit
    M305 P0 T100000 B4138 R4700                      ; set thermistor + ADC parameters for heater 0 - from RRF Configurator
    M143 H0 S120                                     ; set temperature limit for heater 0 to 120C
    
    

    and here the new one for 3.01:

    M308 S0 P"bedtemp" Y"thermistor"  A"Bed" T100000 B4138            ; configure sensor 0 as thermistor on pin bedtemp
    M950 H0 C"bedheat" T0                                     ; create bed heater output on bedheat and map it to sensor 0
    M143 H0 S120                                              ; set temperature limit for heater 0 to 120C
    M307 H0 B0 S1.00                                          ; disable bang-bang mode for the bed heater and set PWM limit
    M140 H0                                                   ; map heated bed to heater 0
    

    Thank you!





  • Thank you!
    I'll try this, but I'm just wondering, why I hadn't this fault when running RRF 2.x ?


  • administrators

    @tom_Nbg said in Heating fault (rising too slowly, RRF 3.01 from RRF 2.05):

    Thank you!
    I'll try this, but I'm just wondering, why I hadn't this fault when running RRF 2.x ?

    It's because RRF 2.x assumes that heater 0 is the bed heater, so it uses different M307 default parameters for it that assume a slower heating rate.



  • @dc42 , @SIam

    Thank you again!
    It is working now and I understood why 🙂


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