Thread: Wiring the fans
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Unread 11-03-2010, 09:46
Racer26 Racer26 is offline
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Re: Wiring the fans
The small fans in the kit are just 2 wires, +12VDC and Ground. You can wire them directly to the PDB.

The bigger fans have 3 wires. They are NOT PWM. They are +12VDC, Tach, and GND. The tachometer wire will allow you to measure the speed of the fan. In most FRC applications, this is totally unnecessary, and just supplying the fan with +12V and GND will be just fine. I believe the tach wire is the centre wire of the three.