4028 fan setup
hey guys, trying to setup my 4028 fan right now and currently run into this issue, not sure what to do about it
if someone could please help that would be amazing!
53 Replies
issue is that the PA8 pin is already used by the part cooling fan.
plus it is an Mosfet output, which cant be used for the tacho signal
was following this wiring guide
which header should i put the pwm into
sorry, thats what im trying to get working, currently fan just isnt working at all
PWM is not the Tacho
i realized that now reading
oh wait the fan is working now, i just power cycled it weird
Tacho is a signal cable that gives a puls or two each rotation. that way klipper can check if the fan is actually moving
it doesnt seem like its turning off
right now both my fans in mainsail say 0 percent but they are both on
with no pwm signal the 4028 will mostlikely default to full speed
so the hotend fan is working but part cooling when i try adjusting just isnt changing speed
thats the part ive come to lol
I have the exact same problem right now in my thread just below!
let me hop on into that
haha
No I think yours is a bit different
gotcha
yeah my 4028 is just running right now
My machine was working fine for a year, stopped using it for a month and now when PWM is at zero it’s 100%