Pwm on nidec ??

Does someone was able to get the pwm working on the nidec ?

I know that the pwm is the blue on the nidec . That the doc is totally misleading. I've followed the documentation on the 4028 form ratirig page .setup the jumper on 5v on cncfan , adjusted the name of the pin for the octopus wiring based on their shema.

I've adjusted the config and the wire so it doesn't blow at start or when the fan bar is at 0%. But as soon I add some percentage it full blow. It s like aon/ off for the moment?
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