Multiplus feed in even when I disabled it

DIY
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1

Hi, I’m new on the forum so bear with me and my English (not my native language)

I have installed a grid-connected 3-phase system with 3 Multiplus
3000/32-35, a Cerbo GX, an EM-540, 2 MPPT 150/35 and 200Ah 48V batteries.
I do not want to feed any power in to the grid thou my gridmeter cannot see the powerflow so i vill pay for everything that passes the meter
I´m running ESS assistant in all MP´s. I have disabled DC PV feed in (do not have any AC PV)
I have two problems:
1: The EM-540 shows that I feed in, as I interpret it (ex. -181W in the box ”Grid”). So what have I missed? Any suggestions?
2: No loads show up in the box ”AC loads”. All loads shows in ”Critical Loads” . No matter if I draw them from AC1 out and AC2 out, see pictures, a 1kW element is connected
Happy to provide more specific information conserning settings etc. If you need
Regards
Nicke

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2

Is all the firmware up to date.
Is the grid meter configured in its position correctly?
Set up phase compensation to individual phase.

3

Hi,
Thank you for quick answer.
Tried individual phase compensation with same result as before
The multis where running 508 so I will update them to 522 and reinstall the assistants and settings and try again. Othervise all firmware was the latest
Haven´t made any configuration to the gridmeter, it just popped up when I installed it. Any suggestion of what settings to change?

4

With the setting “individual phase” the system should try to regulate each phase individually to the grid setpoint.

Switching ON/OFF big loads are always cause a short spike from/to the grid.

AC Out 1 and 2 are both shown as “critical loads”, that’s normal.
Only loads between the grid meter and the AC IN are shown as “AC loads”.

5

I´ve now updated the firmware and tested the system over the weekend, its still small flutuations with feedback when i look om the remote console, but much less and there is no reverse power registrated when I look on the VRM portal so I´m happy with that. The ESS seems to be working as intended.
A another question, if I put loads between the gridmeter and the MP, vill the MP be able to feed them back thro AC IN1 and keep the meter to zero if I have enough PV and battery power?