This is for the Nidec TA500DC A34538-90 CQ2 DC 12V Beta V series fans:
Minimum connections to get fan to turn:
Negative DC (Gnd) to Black or Blue wire (preferably the Black wire)
Positive DC (12V) to Red wire
PWM (Pulse Width Modulation) signal to Green wire (this is the signal that will actually make the fan turn at speed).
The rest are fan feedback signals which are not needed for this test.
Nice info cowboy, but what actual signal is required into PWM so that Silver can get to know how to get the fan running. Is it a TTL level 1 or 0, or 0V or 12V for example, assuming a constant level will do that is?
spec
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