We have set up two Multis 48/3000/16/35 in paralel w BYD premium battery W BYD BMS 15,4kWh/48V AC coupled w Fronius Primo 8,2, w limited AC power output to 4800W PV field is 9000W but w limited AC output on Fronius Primo.. All firmware is up to date, cabels same lenght, Fronius is set as MG50, and we have Maste and slave unit. Also we have 3 pv panels 300W as back up on Smart MPPT charger connected to Cerbo.
It is off grid system set up at island in Adriatic, we have system up and running but we have every day alarms from 1 to 10 ( VE.Bus Error: VE.Bus Error 18: AC Overvoltage on the output of a slave has occurred while already switched off) . The system is up on VRM, but we cannot find the answer what to do.
Load is at the moment up to a 100W. We have Cerbo GX w touch screen and it is operational at VRM.
