AC coupling and MicroGrid settings on the Fronius solar inverter

[Jbird2000]

Have an EG4 12KW Hybrid (+15kw Li-iron-Phosphate batteries). Grid tied and net metering. The Solar inverter is a Fronius Primo. When in grid down and running on battery should I set the Fronius to Country code setting "MG6 N" to allow the EG4 to frequency shift and adjust the Fronius power output to match the needs of the load and battery charging? Normal code setting for the Fronius was "240 N". If I should change it, do I leave it set to MG6N during a grid up scenario or change it back to 240N? I have scoured Fronius documentation and have yet to find answers .... yet

It appears that the current 240N setting results in toggling the inverter off/on when the inverter has excess coupled AC when in "grid down"

TIA

 

[timselectric]

Have an EG4 18KW Hybrid

EG4 does not offer an 18kw hybrid inverter.
You are probably referring to the EG4 18kpv hybrid AIO. (12kw inverter)

 

[Jbird2000]

EG4 does not offer an 18kw hybrid inverter.
You are probably referring to the EG4 18kpv hybrid AIO. (12kw inverter)

I apologize. U are correct 12KW/18kpv solar

 

[timselectric]

I don't know much about the settings for AC coupling. But, I'm sure that someone will answer your questions soon.

 

[timselectric]

Maybe @Markus_EG4 can help.