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andreas-ott avatar image
andreas-ott asked

No Battery Load in multi-phase ESS System - Phase Rotation error

Hello Community

we have an On-Grid ESS System with 3x MultiPlus, ET340 and CCGX and the ESS Assistant loaded.

A message like "Phase Rotation Error" occured. But changing the phases will cause in a "Time Sync Failure". How can we get rid of these failures?

Also a problem: Grid Information on CCGX always empty "---". May this is the real problem the battery load not start.

20211004-171535-resized.jpg

Any ideas welcome

Andreas

ESS
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4 Answers
Alexandra avatar image
Alexandra answered ·

@Andreas Ott

How are you changing the phases to remove the rotation error? is it including a software reprogram or just physically moving units around? Or just moving AC in wiring? Maybe a check on the programing of each unit position in the three phase would help.

The error #10 Time sync failure can be cause by dc fusing blowing so yes can be caused by your batteries not working.

The other more overlooked causes of random problems is the VE cables linking the units.

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andreas-ott avatar image
andreas-ott answered ·

Thanks for your comment Alexandra

If we only change the AC wiring the "rotation error" results in a "Time Sync" failure. If we change also the inverters configuration we have the "rotation error" again.

DC fuse ist ok.

The links between the inverters exist and they are ok.

Why is the "GRID" on dashboard always "---" ?

Andreas

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

Grid is only shown after the system accepted the AC input.

It seem like you are from a electrician company, so I guess you can check the phase order and the rotating field that must match the output of the Multis.


Grid wird nur angezeigt, wenn das System das Netz auch akzeptiert hat, aber soweit kommt es im Moment ja noch nicht.

Sie scheinen von einem Eketro-Unternehmen zu sein, da haben sie doch sicher die Möglichkeit die Phasenfolge bzw. das Drehfeld zu messen, das muss mit dem Ausgang der Multis übereinstimmen.

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andreas-ott avatar image
andreas-ott answered ·

Here a overview diagram

Very simple

system1.jpg

We still not have a grid information but we see the AC loads on the display.

The VVGX knows the amount of AC Loads and the solar inverters generation. It could be calculated...

Andreas


system1.jpg (43.5 KiB)
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andreas-ott answered ·

Solved:

One Inverter was broken. Victron Germany repaired it. Now the 3-phase system works fine.

Andreas

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