Hi,
I do have following Setup:
- 3x MultiPlus-II 48/3000/35-32 configured as 3 phase system (multiphase regulation set to "sum of all phases" )
- 3x Pylontech US3000C as battery bank
- Solar AC coupled 5.5kw peak on phase L1 (old system from 2012 limited to 4kw max output)
The Problem now is that the Pylontech batteries are only charged with about 32A from the Multiplus on phase L1. Maximum i have seen was 35A. The other 2 inverters seem to not charge the battery. This then results in lot of excess solar still feed into the grid instead of the battery. Discharging however works fine. Then all 3 Multiplus activate and discharge with about up to 110A maximum.
The charge current limit of the battery says 111A in the cerbo gx as you can see in the picture. So that cant be the problem. Also as a test I change the ac solar from L1 to L2. Then only the Multiplus on L2 charges the battery. Is this problem maybe some kind of configuartion issue ?