I have 2 x 48/5000 Quattros installed into an RV. Last night, I was running off of the inverter and this morning the system shut down due to low voltage (48v and change). The system has been running well for a few months until today.
My system is such that I have an external automatic transfer switch that switch between shore/campsite power and the generator. The generator is a single phase 5500 watt Onan generator.
I do not have "Switched As Group" enabled:
I am now plugged into a 50amp (120/240v campsite) and the system still isn't allowing power through. I've never been to this campground before by the Hughes Watchdog protection device and app aren't reporting problems.
The flashing LEDs on the L1 unit are "mains on" and "float". This combination doesn't seem to exist in the Victron Toolkit app. You can confirm the lights here. The L2 unit just flashes "mains on" as it seems it is waiting for L1 to make a decision.
Though I see a weird message in VE Config:
Adapting down to the 30amp connection (120v) doesn't help. I see the same "not in phase" message. And I still get the same "mains on" and "float" lights flashing. I've been able to adapt down to 30amp campsites in the past without issue.
I've attempted to switch the whole setup to parallel, but it makes a loud noise, immediately trips the system into overload, and my Hughes Watchdog reports an overcurrent issue on line 1. This is with essentially nothing on inside of the RV, so I'm very confused. And, I've set the input current limit down to 10 amps (as seen in the VictronConnect screenshot below).
I've measured voltage at the AC1 input on each inverter and it reads in the 120v range. The VictronConnect app does, as well:
Here's my system diagram: https://i.imgur.com/BLybuWG.png
Here's my Rec BMS setup: https://i.imgur.com/4zm0l04.png
