I have a sma sb4000/20 conected with modbus to my cerbo gx on L3
But cince i tryed firmware 3.62 my sma inverter doesn’t work anymore it’s stuck in power limiting
Are you using both wifi and ethernet connections on the GX?
Only wifi on the cerbo and lan on the sma (obviously)
@iburger i think i have an isue with either to mutch parameter changes?
But my sma sb4000 tl / 20 is stuck at 10w after a firmware update
Sadly im not the installer of the sma so i can’t see the logs online ( i dont even have the bleutooth password)
Rollback to 3.55 so long.
I was thinking about that
You convinced me
Im now installing 3.55
Still the same so i gues my cerbo isn’t actively limiting the inverter
Next up pull utp out of sma ?
Are you sure the gx can see it? Did you set the IP manually for it on the GX?
Yes it says its comunicating and it used to work flawless
how does this happen ?
i need a grid guard code to fix it
and why isn’t the cerbo updating the registers
or is it becous my cerbo might have jumped to a different ip addres ?
time to get myself a grid guard code i gues
for now i will update to 3.62 again
thanks Burger for your great work so far
useless text : waste of time garanteed
(i might be that idiot that got invented last time someting was claimed to be idiot proof
becous we all know the universe will keep producing better idiots so the engineers and costumer service keep their job) some peaple believe god is an engineer
so i almost collected all the passwords so soon i can manualy reset my sb4000tl/21 to full power
if i had my inverter registered then it would have been solved already
so now i know more the default if no new data is recieved for 10 minutes = keep old data in my case that seems to have been 0-10w
changed that to go to pre set number (in my case 100%) i might change that later if needed
also i hope that tomorow this pv inverter starts up normal i might test the “limit inverter power” function later
and im back on fw3.62 for now (now that i can set all the setings on this inverter i can experiment a bit
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ok so everyting works again i can set a feed in limit in fw3.62 and it behaves as expected
why it crashed my sma inverter we don’t know
i did write most of the procedure to fix it but if anyone has the same isue please add to this post maybe one day we find a reason of this “bug”