FRONIUS TPS4000 CMT

[trebor]

Hi all,

I have Fronius TPS 4000 CMT that was sitting in storage for a few years and now I powered it ON and there is 050 Symmerty error. Last time I used it everything was OK.
I checked three phase power supply and it looks OK.
Only thing I found from manuals is LED on PC board BPS that should be maybe related with my problem. Red arrow on attached picture.

Has anyone had experiance with this error?

Thank you all..

 

[trebor]

Update:
Hi

The problem was on this big BPS43 board. After replacing the board the problem was gone.
Now I have to see in more detail how to repair this BPS43 board. and figure out what component could have be damaged if machine was not been used for a couple of years.

Maybe this big 4 white capacitors. I think that over time capacitors can gone bad if not used.

not sure...

Thanks,

 

[tom2207]

hope you get it sorted , maybe they will do you an exchange board , no harm in asking