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Vangelis Beligiannis avatar image
Vangelis Beligiannis asked

ESS does not allow the AC-OUT connected FRONIUS to produce power when AC-in is ignored.

I have an ESS system with a Quattro and a Fronius on the AC out.

When the AC-in (grid) is ignored (because I do not want the grid on the system when the battery is charged enough) the FRONIUS does not start up. The frequency on the output is above 52 HZ so the fronius does not start up. The general flag with programmable relay assistants are used to ignore the Ac in.

Why is this happening?2021-11-28-7.png2021-11-28-11.png2021-11-28-9.png

ESS
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2021-11-28-9.png (53.6 KiB)
2021-11-28-11.png (45.2 KiB)
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Alexandra avatar image
Alexandra answered ·

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Alexandra avatar image Alexandra ♦ commented ·
That being said have you tried telling the system to keep batteries charged or any of the variations there like battery life?
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