Not sure if this is a bug or a future request:
Multiple inverter/charger systems configured for split-phase power need to accept AC input with 0 degrees between the two legs.
The Ve.Bus System Configurator provides a selection for "Dual phase 180" and "L2 floating with return to original phase". But the the AC input is rejected if the two AC inputs are in phase.
"Floating" should accept the two AC inputs regardless of the relative phase.
Recently, there has quite a bit of discussion in other threads regarding the best way to configure Multis/Quatros for use in an RV with split-phase power inlets.
The complication arrises when split-phase power is not available. In this case, the RV must run off of a single circuit, putting the two inputs in phase.
There does not appear to be a configuration that will allow both Multis/Quatros to function with 0 degrees between their AC inputs. Rewiring the system for true parallel operation when moving between campgrounds is simply not practical.
Note that running a split-phase system on a single phase will never produce the double voltage (e.g 240 volts in the US). In most RVs however there are not any 240 volt appliances, or if there are, they would simply not function when on a 120 volt 30 amp service. This is a known and accepted situation.
Running both legs of a split-phase service in phase doubles neutral current. However, the total current available is lower than would be the case for a true split-phase service. For example, a typical RV in the US would have a 50 amp split-phase inlet. Running that inlet on a 120 volt 30 amp service would result in at most 30 amps on the neutral which is already sized fo 50 amps.
Power assist creates the potential for the Multi/Quatro output to produce greater than 50 amps of neutral current when running on a 0-phase service. This is easily handled by running separate neutral wires from each Multi/Quatro to the neutral busbar in the AC distribution panel.
