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Re: GT2560 PWM Fan always rotating
Posted: Wed Jan 04, 2017 6:14 pm
by smokehead
Yup, suppert told me same thing, but i made test yesterday. I connected FAN to PWM port(Fan is always working) On LCD screen I set 0 for FAN, the voltage between "2" and "1" on Pin16 was 0, when I set 255 for FAN on LCD the voltage rise to 3v, and when I changing between 0-255 the woltage on Pin16 was moving from 0-3V. On PWM FAN slot i have always about 10.5v- 11v. So what can we say about this?
Re: GT2560 PWM Fan always rotating
Posted: Thu Jan 05, 2017 10:49 am
by bang
Weird...
But i think maybe you can replace it to take a look?
How do you think?
Re: GT2560 PWM Fan always rotating
Posted: Thu Jan 05, 2017 3:19 pm
by smokehead
You mean mosfet(pin16)?
Re: GT2560 PWM Fan always rotating
Posted: Thu Jan 05, 2017 6:00 pm
by bang
No,i mean the mosfet Q5.
Re: GT2560 PWM Fan always rotating
Posted: Sat Mar 04, 2017 7:02 pm
by giannis
Suddenly my PWM fan is always rotating.
I have changed the fan but the problem remain.
I suppose the mosfet is broken .
I have a Arduino Uno board, can i use it with the pins from the second extruder that is not in use to control the fan speed ?