Hi!
I have a problem with max. charge current. It seems that it doesn't work right.
See below:
Max charge is 15A but the battery will be load with 39A?!
What's going wrong?
asked
max. charge current doesn't work
as @klim8skeptic already pointed out: If you have a 3p system (which according to the picture you seem to have), then 15A is per charger/inverter. Therefore a total 45A.
In addition to that there is the current from the PV charger.
The Fronius is a 3-phase inverter at AC-in but the battery will load only by DC. The load function of MultiGrid (2 parallel at L1) is switched off.
It appears that the DC charger ((MPPT 250/100 5,3kWp PV) ) is not taken into account by DVCC and therefore charges at full power.
Hi @MaHa
When 'feed in DC solar power' is 'on', DC charge current is not limited, and when the battery is not fully charged yet (so no feed-in from DC active yet) this can lead to charging with a higher current than set in DVCC.
So the solution is to either disable DC feed-in, or better: use a battery that is capable of the charge current the MPPT can reach.
I think it's a software error!
DVCC will not(!) control the charge current via DC-input in my system (Fronius at AC-in).
