I have a three wire(Red,Black, Blue) Delta Fan

Could I just simply jump the PWM Control to +12v for full speed?


Fan: https://www.digikey.com/product-detail/en/delta-electronics/BFB0712HH-AF00/603-1373-ND/2560497

Datasheet: http://www.delta-fan.com/Download/Spec/BFB0712HH-AF00.pdf


Something I found if applicable

Excerpt from: http://www.delta.com.tw/product/cp/dcfans/download/pdf/general_info.pdf

 

Err Rather than jump it straight to 12v I should use a 10kohm resistor inline so the Fan sees a constant 12mA pullup?

 

Hello,

The extra wire on the fan is an output to measure the speed.
Taken from the given info PDF, with some comments I made:




Bertus

 

Bertus interesting, hmm reason why I posted is because the fan does not turn on when +12v is applied to it (red/black)

Which is why I was thinking it needed that pull up.

 

Hello,

What did you use for powersupply?
Did you use the correct polarity?
Black - and red +.
Blue F00 output (needs pull-up to see signal).

Bertus

 

For quick initial testing(see if it spins) I am using a car battery (12v) Yes correct polarity was used, I ordered a replacement fan, mine may be defective, it should be here early next week.

Thanks for the help Bertus.

 

So I just looked at the fan I have and just relized its not the same exact one as the one on Digikey

It ends with AA03 not AF00

BFB0712HH-AA03 which that designation is not listed in that manual Ill have to dig deeper