Unsolved Voltage decreases after putting a fan into the fan port
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Where are you measuring this? There could be some voltage drop over the switching FET, but 5v is more than I'd expect. Are you measuring when the output is set to 100% if not your meter may struggle getting an accurate reading as well.
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@bearer i measure the 5,8V at the fan connection but the cable is not the problem because when the fan is connected to the always on fan port i can measure the 24V at the fan
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@SIam doesnt changed anything tried freq 10000 and freq 100 still only 5,8V and no spinning fan
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please try to connect the fan to a other pwm output and report the result
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@SIam the next Port worked, so is the first one broke ?
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it look like that the mosfet from fan 0 is faulty
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Are you running a 24V fan on 5V? It is going to be slow. I connected mine to E1 heater on the Duet.
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@SIam can i replace it ?`its the mosfet from fan1
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@Quattro no the voltage drops to 5,8V when the fan is connected and if i remove the fan the voltage is 24V
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@K3K5 said in Voltage decreases after putting a fan into the fan port:
can i replace it ?
https://github.com/T3P3/Duet/tree/master/Duet2 schematics are available