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Getting Genstart to trigger on excessl load on 3 phase using Genflag

Three phase multiplus system (6 x 3kva multis) Wish to self consume, have the multiplus only charge from grid on battery level or excessive load. There is solar PV on AC out so PV Assistant is also required, and driving need for system to be group switched. Grid AC (3 phase) is avialable to AC IN .

Do not want to use ESS, as I do not want to put in grid code and risk feeding any of my power into the grid.

If I load Genstart and Genflag on phase 1 then that works for low battery and excess load on that phase , only. Excess load on L2 or L3 cause Multis to overload. The Genflag seems to be distributed somewhat to the other phase multis since they dont start charinging, probably via group switch function. I cant get Genstart to trigger for overload on L2 or L3. IF I load the assistant on another phase , nothing happens. If I load the assistant plus another instane of Genflag then I lose function on L1 too.. seems the Genfag on L2 or L3 is Or'd with L!. I can prove if I put both assitants on L2 or L3 then the genflag does control the Ignore AC flag on that multi.(changes from 1 to 0) . but when triggered nothing happens.. presumbably because it is still 1 on L1 and that is charge / phase master.

Any ideas how I can use these assistants and genflag to trigger for overload on L2 & L3?

Multiplus-IIoffgridAssistantsgen start
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mblowes avatar image mblowes commented ·

My interpretation is that because switch as group is set (and has to be for PV assistant) then L1 is phase and charge master .. . genflag set on L1 thus propogates to L2 and l3 to ignore AC in on all , but assistants on L2 & L3 cant communicate with the L1 instance of genflag.

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