ABB fault 5080

[chris kennedy]

I have an ABB drive that faulted yesterday on 5080. The cooling fan became dislodged underneath it. I put the cooling fan back in place and it is running.

Can't clear the fault. This fan runs as soon as the VFD is powered up. The 2 other ABB drives in this controller run when the VFD gets warm enough.

Any clues?

Thanks

 

[ptonsparky]

? Default is for fan to Run if control for it malfunctions?
(A WAG for sure, with no idea how to correct or prove it)

 

[TwoBlocked]

Another WAG - The thermistor or whatever is broke and the VFD thinks the temp is too high. A sensor problem.

 

[kwired]

Another WAG - The thermistor or whatever is broke and the VFD thinks the temp is too high. A sensor problem.

This would be high on my list of guesses.

 

[TwoBlocked]

Chris, you might get lucky and find something came unplugged or a wire broke during your repair.