OUT_3, OUT_4, OUT_5 of 6XD only PWM or also voltage control?
-
Are the OUT_3, OUT_4, OUT_5 PWM connectors on the 6XD only PWM controllable or also analog voltage controllable? To connect and control 3-wire fan? And if yes, How?
-
@lazy_mosquito they provide only PWM output. To use a 3-wire fan at less than full speed and have the tacho outputting correctly, you would need to add a circuit to switch the positive wire instead of the negative wire, and for some fans change the PWM to variable voltage too. It's much simpler to use 4-wire fans, which are designed for PWM control. All Duet 3 main boards provide some ports that support 4-pin fans..
