Hi Victron Team. DPA has sold a 3kVA Multi, 2 x BYD batteries, CCGX to an installer for an off grid site and the installer supplied a new SMA inverter for AC coupling. The installer spoke with SMA rep to determine the ramping frequencies to input into the PV support assistant. Ramping starts at 51 ends at 52hz. The SMA ramps down nicely and Soc shows 98%, 99% but the system shuts down when SoC gets to 100%. The installer has gone back and updated CCGX firmware, selected DVCC, checked all settings but problem persists. No errors or notifications on the Multi but potentially the Alarm (ARM) led on the batteries are flashing once per second when interrogated indicating low batt voltage.
Any suggestions
David