I have a Multiplus-ii 24/3000 which is running ESS. The ac-in is connected to a 3phase system of quattros and I use the multi to use a 24V lithium battery that I still have to feed into 1 phase of the 3 phase system.
When I feed in, I set a negative grid value of 1500W. Way below the inverter max. But sometimes the multi trips in overload. Any idea what causes this? Sometimes it happens 3 of 4 times a day and then not for weeks. Room temperature is stable at around 10degrees C.
By the way, what is the maximum continuous backfeed a multi 3000 can provide?