Hey folks. New install here and I’m having very similar issues ! My setup has solar backfed through breakers. I had the two solar CTs connected there (with the sun sign on both pointing towards breaker), and then I had my main CTs connected to the two main live phases (checked that V diff between them is 240 so I don’t accidentally monitor neutral), and made sure the “home” sign is pointing away from panel (the direction of utility company), as some old version of the manual appears to say. Since my production > consumption in day time, as I expected, the solar was positive and the two mains were negative, and the main display would show it as 0 which I thought was a software correction. I checked that turning on a device makes the main CT less negative which made sense to me.
8 hours later, I get the (hmmm…) message showing 50% completion. At this instant, the software decides randomly to flip the phase of one main CT (so now one reads positive and one negative), and this seems to last indefinitely. I waited 2 days then did a data reset and started over again and got same issue. I now turned one AC on and saw a spike of power up so I thought ok this is a good sign. Then I started the other identical AC units and nothing seemed to change on the graphs. The numbers don’t make sense at all to me now.
I want a ground truth: when everything is installed correctly and everything is working fine, what am I expected to see in the main display ? When solar is being produced I should see solar wattage as a positive value on both phases right ? And What about the main side ? Should it show positive when consuming ? Or when being back fed ? What is the sign convention here ? My guess is that it should show positive when consumption > generation, and negative (and equal to generation) when generation > consumption. What is the correct state ?