wheisenburg
Independent Solar Consultant
I did some experimenting today. I have a two inverter system and set everything up the same other than the recharge voltage. One inverter did a grid sell, the other stayed in pass through mode.External automation is a good term for it.
So for me it might be possible to sell to the grid on my slave inverter and then have the master inverter kick off a charge cycle later when I remove the charge block. I may test that later, but it does help people running with a single inverter.