I have 3 multiplus 2 in 3-phase config, 1200 ah 48VDC battery, generator and now a water turbine.
I control the water turbine with frequency shift, and it works fine.
The issue is that in the display of the Ekrano it does not show a negative value of the input power, it show only 0 in the general information display, but in the multiplus details screen it show the correct data.