Sorry, but I don't understand what your problem/question is.
What products do you have exactly? Maybe some pictures and/or a wiring diagram will help.
I take it you want to use the grid only if your batteries get low.
If this is correct, you can use the virtual switch setting of ignore Ac input.
More information can be found here Virtual switch ignore ac
The same can be achieved through assistants, Ignore ac using generator assistant
ESS may also be an option but I would talk to your installer about this.
All of these options will require either a GX device or a USB-Ve.bus adapter and the Ve.configure software.
Whichever way you choose, I would recommend discussing your exact requirements with your installer to ensure settings are optimised for your system.
On your Quattro you can connect Grid on AC1IN and Generator on AC2IN
