We've been running a MultiPlus-II system for about 16 months now.
Our MultiPlus-II 48/5000 recently started not accepting the AC Input connection (after an 'overload' event - we get these overload shutdowns from time to time, for some reason).
The system has a Venus GX , at Firmware v2.73.
The MultiPlus is on firmware version 475. It's configured as a single unit.
ESS is set as 'external control' (I automatically/dynamically set the grid setpoint through MQTT).
The MultiPlus detects the AC input voltage and frequency fine:
Here are some VE.Bus state entries for the event in question (power off due to overload occured at 10:38):
AC In voltage and frequency is stable, both before and after the time of fault:
Any idea what could be causing this sudden loss of accepting AC in? Could it be an internal fault (main grid relay) ?