Need to understand from what happened.... and maybe learn from my errors ?
Currently installing and setting a parrallel system and got a blow.
2x quattro 48/5000 in parrallel
8 kw if panels on 2 X 150/70
4X UP5000 pylontech
cerbo
have installed all. NO AC IN connected. NO AC out connected
did the settings following Victron's instructions with Ve bus quick config. all went well up to getting confirmation the system was well configured in parrallel.
did the settings on each inv separately via VeConfig direct access from Ve bus quick.
No assistants. No ESS.
Just basic VS with "disable charger" and ignore AC settings.....
all inv same week. same latest firmware.
all components with latest firmware.
all batteries at 100%
after settings , removed MK3 and connected cerbo . all looked good.
no ac in . no ac out connected yet.
Note. after all settings, I noticed that Master inverter had a steady "inv" green light, and slave had the green inv light alternating with the green "mains ON" light. I was trying to find out whether this was correct when I heard a loud spark and all went on alarm and Off including the batteries. Got a burnt smell !
Bat low voltage alarm ! (full )
High discharge current
I have no idea what went wrong and would be grateful for some ideas.
thanks
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