Im using two MPPT 150/45, a cerbo-gx, a Multiplus 2 48/5000/70-50 and a pylontech battery. When only one MPPT is activ the Multiplus is inverting the full power of the mppt with aproximate 2200W. When the second gets activ the Multiplus caps the inverting at around 3000W. Feed in excess in enabled of course. Limit system feed is not set.
Here are some screenshots from a perfect day:
Both MPPT activ
One MPPT activ:And the other MPPT activ: