Yes when you plug into shore power the converter powers the house loads and recharges the battery bank. If the shore power fails, the twelve volt devices are then powered by the battery bank.
But, with an inverter running a converter, the inverter is drawing from the battery bank. It will power the house loads and attempt to charge the battery. I.E. a loop where the converter tries to charge the battery by drawing power from that same battery via the inverter.
OK well my goal was to turn off the charging circuit when on invertor power. or plugging the camper into the invertor.
Let me ask this as I never tried it with my old camper, and I dont have the new camper yet..
If you remove the battery in the camper, and plug into shore power you get 12 volts at lights and such. I know this becuase in the winter I removed my batts but keep camper plugged in sometimes when I need to enter it to fetch items.
Now with no battery and plugged into shore power, if I switch the charging breaker at the convertor will that kill all 12 volts items to the camper?
If the above is true then it answers my question.