Geeetech

I am thinking of buying a control board to replace one that has failed on my Prusa.

I like the GT250 because of it's three fan outputs. Can these be independantly controlled or are some of them 'always on'? What gcode commands would I use in Marlin to control them?

Thanks


Misha

The GT2560 has 3 fan outputs, but only the PWM one can be controled through gcode :M106 S127(0-255,when the num is 0, it will be stopped).

Hi i have GT2560 and 2 fans, one on board and one on hotend, but bout is turn on immediately after start and even not hotend heating or motors moving , and they are so loud.
So Pls can i have set them to lowest rpm ,or set them to turn on only when hot end heating (on extruder) or moving motors (on board)
And also i want add cooler for extruding , i connect him to PWM fan , but what Gcode be for him ?

Thx for any help.

there's only one PWM fan on the board, so when the power is on , other fans will turn on too, can not control them...And the gcode above is also the same for extruder fans.

OK thx for your help