I have got a 120/240V system comprised by 6x Quattro 5kVA 120V units (3x per leg). This system has been working perfectly for a couple of months however for the last few days, when the generator switches OFF the voltage at the output drops for about 30 seconds and we are getting the alarm "#5 Overvoltage on AC-out"
I have checked the voltages on the input and realised the voltage on L1 was quite high 130V approx. I though that was the problem, however I have fine tuned the generator voltage to be closer to 120V and still having the same issue. According with the Victron documentation, this Error 5 could be related to a wiring issue on one of the slaves but I have checked that and everything seems fine.
VRM Portal ID: 0cae7d24a5a1
Thanks in advance.