the installation:
3 phase system ( 3X multiplus 2 48-3000-35) fw 475
mppt 150-60 with 3kw solar
smartshunt
color control gx fw 2.60
grid meter ET340
PV meter ET340
LIFEPO4 300AH 48V
ac coupled pv system 4,5kw
feed in grid active.
when i set in ESS the maximum charge power to 0w than delivers the mppt full power to the battery and in a high soc also to the grid. but always at maximum power.
but now is the problem that de multi don't charge the battery with the ac pv system.
when i set in ESS the maximum charge power to lets say 2000w than the multi is charging perfect to a max of 2KW. and de mppt also delivers the max he can. But than we reach a high soc and the multi keeps charging at 2kw but the mppt go down to zero. and than goes also the multi down.
but i want that the mppt also delivering the max output always. and feed all excess power in to the grid.
thx
