question

michael-boogaers avatar image
michael-boogaers asked

ESS system keeps going to Passthru and ignoring battery and DC PV Input.

Hi All.

System consist of 3 * Multiplus II 48/5000 units in Single Phase.

This happened right after u[update to FW 2.73.

I downgraded the fw to FW 7.72. And problem still active. Reset system , still no success.

The error comes and goes, then it works as it should, access PV Feedback etc. when ESS is set to optimized to 35% UGF.

Other issue I picked up is when I set It to keep battery full it works complete opposite for a while(then it feeds back and uses battery).

Inverters FW update to the same versions.

Any Advice?

cerbo gx
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1 Answer
Alexandra avatar image
Alexandra answered ·

Are you using anything like a meter in the system at all?

See FAQ #4.

Q4: Why is the VE.Bus state in pass-through?

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