Hi,
I have following small installation:
1520Wp panel source
1x BlueSolar 150/35
1x Cerbo GX
1x Pylontech Battery
1x AEConversion INV500
The battery BMS is talking to the Cerbo via CAN. This forces DVCC on the Cerbo switched on. When the battery reaches 90% of its capacity the BMS is reducing the max current from the BlueSolar from 25A down to 10A. As I do have an inverter which is not seen by the Cerbo it's also unknown how much current the inverter is drawing. The inverter uses a maximum of 10A. So when I set the inverter to 100% in this condition no current reaches the Pylontech anymore. I understand usually (when the inverter is known to the Cerbo) DVCC is considering the current taken by the inverter.
To get a full charge I need to reduce the inverter power to somewhat lower than 100% so some current is left going into the battery.
When the battery is fully charged DVCC is turning off the BlueSolar completely. Although my inverter still would like to work.
I see actually only one way out of this dilemma --> disconnecting the BMS from the Cerbo and deactivate DVCC. If I then would connect the Pylontech to the Cerbo using a simple RS485 connection ... will I still get values from the battery visible in the VRM ?
Does somebody have any other suggestion ?
Thanks
pawl