I'm trying to understand how "External Control" mode works in case we have shore power.
Setup: MultiPlus 48/5000 + Cerbo GX +(over CAN Bus)+ LFP battery (similar to this one).
I'm struggling with OverVoltage and DisbalanceVoltage errors on the battery.
And I have some doubts regarding (VEConfig 3) settings changes which I'm trying to play with.
For instance, I noticed limitation: the battery does not allow me to use Charge Current more than 30A.
I'm playing with different settings, e.g. Absorption/Float Voltage.
(DVCC➡Maximum Charge Voltage: 55.3)
In my understanding, the inverter shall go to Float after full charge battery. But it does not (I mean, the light "Float" does not light up).
Before I connected CAN bus to the battery – "Float" was working.
Questions
- How to figure out which settings are applicable in "External Control" mode?
- Does an inverter has some influence or BMS controls most of things?
- If there are limits, how to deal with OverVoltage and DisbalanceVoltage errors on the battery?