Hello,
I have encountered an alarm on my system, which consists of six Quattro 15kVA inverters in an AC-coupled setup with an on-grid inverter. The system has been operating smoothly for the past two years, but this fault has suddenly appeared.
VE.Bus Error: VE.Bus Error 18: AC Overvoltage on the output of a slave has occurred while already switched off
Could you please assist in diagnosing the issue?