[RE-wrenches] Fronius State 104

[Jeff Wongstrom]

Hello wrenches,

We have a Fronius IG3000 that chronically and frequently cycles into and out of a state 104(grid frequency not within admissible range).   The utility has monitored the supply and claims to have found no frequency or supply issues.   Fronius sent a replacement inverter but the error persists. The tie in point was moved from the critical loads sub panel to the main distribution panel.  The state 104 persists with ALL other breakers open.  A Fluke DMM min/max function captures no frequency readings outside of the inverter frequency window-same with voltage readings.   

Any suggestions or recommendations?

Thanks,

Jeff


Jeff Wongstrom
NABCEP Certified
406.291.3416
thirstylakesolar.com





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