question

fgs-energie avatar image
fgs-energie asked

Can't use the battery

Hello everyone,

I have a Fronius + Multiplus connected to a grid.
The Fronius is connected to the AC input of the Multiplus and to the CCGX via EM24 + RJ485 to USB.

It worked without problems for a few months but now the system can not read the batteries as they remain charged at around 50V (also I have installed a SmartShunt and it keeps reading 99-100% SOC).

I tried changing the meter, the cable, the CCGX, I updated the firmware and re-installed the ESS assistant but with no effects on the system.

How can I manage to fix it?
Thanks

Mike

Fronius
2 comments
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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·
What batteries do you have?

Some screenshots may help to figure out the problem.

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fgs-energie avatar image fgs-energie Matthias Lange - DE ♦ commented ·

So the system is using a 48V - 450Ah Rolls OPZV batteries.

Here's the screenshot of the general view.
Thanks

1662713553642.png

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1662713553642.png (51.3 KiB)
1 Answer
Mike Dorsett avatar image
Mike Dorsett answered ·

what happens when you turn the grid off?

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