I realize this question has been asked several times already, but not for my exact use case. I am installing two Quattros in split-phase 120/240 in the US. I will have no grid connection. In my case the ground relays in the Quattros will be closed, connecting neutral to ground. If I connect a generator, these relays will open, and there will be no G-N bond in the Quattros. There is no G-N bond in my generator, so the whole system will not have a G-N bond when the generator is running.
I believe I should disable the ground relays in the Quattros and make the G-N bond in my main AC circuit panel on the Quattro output side, creating a G-N bond whether the system in running in inverter mode from batteries or from generator power. Is this a correct assessment?