topic_solved Duet 3 mini 5+ connecting fans
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Trying to figure out on how to connect fans. I just have 2 cables. Which pins do i use? I tried V_OUTLC1+ and OUT3-. Should i connect V_OUTLC1+ to out4.tach instead?
While i typed this message i just saw out 5-6, should i use them instead? -
@Alucardi I use OUT5 and OUT6 for two wire fans on mine. Make sure to set the voltage jumper for what your fans need.
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https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+3+Mini+5++Guide+Part+1:+Wiring/87?lang=en
Specifically steps 10 and 11.
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well there is something wrong cause it keeps burning my fans now. I killed 3 fans! WTF it was working fine last night but now out of the blue it kills my fans. I had 3 12v blowers and 2 cooling fans all dead. Even tried pc fan and it died to. What can i can?
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are you sure you changed to jumper to 12v? 24v will burn out the fans.
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@Veti no. I must have miss read. I read it as 5-6 was set on 12v and 3-4 was vin but it was the other way around
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I do have a few 5v blowers. I also have a bukconverter. Can I just pull power from that? If so do I just connect plus to the converter?
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thank you for running the test.
i always wondered how long 12v fans would survive on 24v.
so apparently not long. -
@Veti lol not even a second! Btw can I just connect the + to a buck converter and run that on 5v and - to OUT6? Cause I have several 5 volt blowers but no more 12v.
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that should work, but it would be best if someone else can confirm this works on the mini as well.
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@Alucardi said in Duet 3 mini 5+ connecting fans:
@Veti lol not even a second! Btw can I just connect the + to a buck converter and run that on 5v and - to OUT6? Cause I have several 5 volt blowers but no more 12v.
@dc42 can you confirm?
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@Alucardi said in Duet 3 mini 5+ connecting fans:
@Alucardi said in Duet 3 mini 5+ connecting fans:
@Veti lol not even a second! Btw can I just connect the + to a buck converter and run that on 5v and - to OUT6? Cause I have several 5 volt blowers but no more 12v.
@dc42 can you confirm?
Yes, that would work,. However, as well as blowing the fans, it's quite likely that you have blown the fan mosfets on those outputs.
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@dc42 i tried them with a pc fan and it was fine.
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@Alucardi said in Duet 3 mini 5+ connecting fans:
@dc42 i tried them with a pc fan and it was fine.
That's good news!
