What happened with fans conectors?



  • Hi,

    The fan controlled by temperature to FAN1, did not work, I changed and connected another fan directly to the board in FAN1 (Extract of config.g, next), and it has not worked either, raising the hotend temperature, with the addition that after a few seconds smoke has started to come out .. ..

    [[language]]
    ; Fans
    
    M106 P0 S0 I0 F255 H-1; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F255 H1 T50; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S1 I0 F255 H1 T50; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    
    

    So with a multimeter I have measured the voltage of the connector FAN1 …. AND I MEASURED 24 V !!!!!!!!!., which I suppose this has damaged and / or burned the fan ....

    If I understand correctly, those fans are 12V, and now the connector takes 24V, I guess this will be for the update at 1.20, because as I said before I did not pass

    This is normal?
    Is there any way to get the connectors FAN0, FAN1 and FAN 2, 12V?
    Any other explanation?


  • administrators

    See https://duet3d.com/wiki/Connecting_and_configuring_fans. On a 24V powered printer it is normal to use 24V fans. They are readily available.



  • :C

    Eeeeemmmmm… Old trick of polarity...

    Mistake.... No... BIG MISTAKE

    Sorry


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