question

lopcarlo avatar image
lopcarlo asked

Multiplus 2 new instalation some help.

Hi

I need some advice about the system that I am doing. I have:

1 Multiplus 2 48/5000 - ESS

1 cerbo gx at ac in with 12v transformer before bypass point

1 fronius primo 5.0 at mp ac out

1 aftermarket 7” display

1 hager sft440 for bypass

1 10kw battery (waiting for delivery for about 90 days)


Despite not having batteries I started to assemble what I could because I want to do all the firmware updates and cable management ready while I am waiting for batteries.

The doubts are:

As you could see in the picture I could install and update all the firmware, and the system is working with no problems after those upgrades, can I still have this running without batteries while I am waiting or it is better to bypass the mp for now.

About the cerbo gx, I live in a stable grid power area, can I connect the cerbo gx with from ac with a simple 20000mah powerbank with a step up converter that outputs 0,8a at 12v. By the multimeter value yes but anyone tried it?

KR

Luis


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Multiplus-IIcerbo gxFronius
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1 Answer
Kevin Windrem avatar image
Kevin Windrem answered ·

It isn't recommended to run the MP2 without a battery connected. Best to bypass it and turn it off.

While you can run the Cerbo off of AC via a power supply, I'd recommend running off your battery bank so you still have control in the event you loose the grid.

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