Victron Multiplus II AC input current limit is not equal to grid limit

Q&A and troubleshooting
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Hi All,

I have a system build for a friend who uses two Multiplus 48/5000 in Parallel on a single phase grid. All loads are on AC-Out. SolarEdge PV system is on AC-In. Victron vm-3p75ct grid meter is connected directly to L1 after the grid meter.

The problem I have is that when I set the Grid Current limit to 25A, the Multiplusses only use a maximum of 25A on the input of the multiplus itself. While when the SolarEdge system is producing power on the AC-in side, the grid meter shows less than 25A.

For example: Solar AC feed in is 10A and grid current limit is 25A, the total amount of current that should be available to the Multiplusses should be 35A. How do I set this up?

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The limit doesn’t differentiate between sources. It sets the point at which power assist kicks in, as per the manual.
You could create a nodered flow to temporarily increase the limit by what the PV inverter is producing.

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I hope that this is going to be updated on a future firmware update. Personally I have the Multi RS 6000 in my system, and in that system I can set the grid input current and multi rs input current separately:

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In my opinion, the Multiplusses should ignore the built-in current sensor when an external grid meter is installed.