[RE-wrenches] AC Coupling Fronius IG Plus 10.0 inverter

[Steve Jefferson]

AFRA is a setting that is used when the SI is in an off-grid situation (can be grid tied, just that the grid is not available). If there is a generator that is providing power at a higher frequency, when the Sunny Island disconnects from the gen, it will lower the frequency (below 60Hz), to adjust clocks for the higher Hz that the gen was providing.
SMA America, LLC
Steve Jefferson
Sr. Technical Service Specialist, Sunny Family
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Email: steve.jefferson at sma-america.com
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