5v-12v fan wiring help
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Hi everyone, I have a couple of questions:
can I use 12v for fans that are always on and 5v for fan0-1-2?
or removing the jumpers all the fans work 5v?
I have to mount 1 fan 30x30 for v6 (12v) and 2 fans 30x30 (5v) to cool the printed part.
could it work by putting the two 5v fans in series always in 12v by lowering the max PWM? -
can I use 12v for fans that are always on and 5v for fan0-1-2?
Yes if you wire your always-on fans directly to VIN (assuming it is 12V) instead of to the always-on fan connectors.
could it work by putting the two 5v fans in series always in 12v by lowering the max PWM?
I don't recommend that because you can't guarantee that the two fans will share the voltage equally if you connect them in series.
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Yes if you wire your always-on fans directly to VIN (assuming it is 12V) instead of to the always-on fan connectors.
thank you so much I did not really think to connect the fan 12v always on at VIN as on the ramps hehe
thanks, it seems to me the best solution.So to enable the 5v I just remove the two jumpers?
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No you switch the jumper on the 3 pin VFAN block, to 5v, instead of Vin.
It will supply the fans from the Duet's onboard 5v regulator (or external 5v if you have that jumper switched also).
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No you switch the jumper on the 3 pin VFAN block, to 5v, instead of Vin.
ok, I think I understand, in the coming days I try to connect and test everything, thank you very much
