I have a few 60kva (6x 10kva Quattros} systems that we have running with 1 x 27kw fronius eco and 4 x250/100mppts. These systems all have freedom won batteries and run Dvcc. I have pv inverter support assistant running. My problem that I'm having is even though the Quattros are set to charge at only 55.5 vdc they are getting above 57Vdc before the frequency starts rising to limit the fronius. Does anyone know how to stop this or have similar experience.