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klarglas avatar image
klarglas asked

MPPT 100/20 sometimes no power in ESS configuration

Hello,


I have a Multiplus 2 48v 3000 and a MPPT 100/20 with a 48V lead acid battery. The MPPT 100/20 is connected to 2x275W panels (60 cells each). On ACin there is also a AC coupled PV inverter.

I configured ESS with the option "Grid feedin -> DC-coupled PV - feed in excess -> activ".

Grid setpoint -> 0W

Inverter Power limit -> 750W

Sometimes the MPPT feeds in power but sometimes not (screenshot).

When does the MPPT decide not ot feed in even when there is high load?


bildschirmfoto-2022-07-15-um-135154.png

In low load condition the AC PV power is used to charge the battery, the MPPT does only start a few times today as you can see on the screenshot.

bildschirmfoto-2022-07-15-um-141137.png


Thanks

Kind regards


MPPT ControllersESSfeed-in limit
bildschirmfoto-2022-07-15-um-135154.png (182.2 KiB)
bildschirmfoto-2022-07-15-um-141137.png (177.8 KiB)
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2 Answers
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kevgermany answered ·

Please give us a screen shot of the battery settings in the MPPT

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klarglas avatar image
klarglas answered ·

The MPPT is connected to a Cerbo GX via VE.direct so I think there is no battery settings in the MPPT or?

I think the charging is controlled external.

bildschirmfoto-2022-07-15-um-193934.pngI was able to "fix" the MPPT by disconnecting the battery and the PV. After a few minutes it works again and feed in power. But this is not really a every day solution, disconnection everything.


Do you need a VEconfigure screenshot of the battery settings?


bildschirmfoto-2022-07-15-um-193934.png (106.3 KiB)
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