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Lubomir Horna asked

Multiplus II, 3-phase, ESS, Ignore AC

Hello guys,

I am from Czech Republic and I have following device setup:
3x MultiPlus-II 48/5000 in 3-phase configuration
DC coupled system with PV array (2 strings, 2 MPPTs)
Pylontech batteries
VenusGX - devices are connected to the VE.Can (Battery & MPPTs) and VE.Bus (Multis)

Next, the software configuration:
VenusOS version: 2.92
Multiplus-II firmware version: 500
=== Multis settings: ===
The same settings on tabs: General, Grid, Inverter on all Multis; Charger settings only on L1 Multi
Grid code: "Europe (EN50549-1:2019)" on all Multis
== Assistantants: ==
ESS on all Multis
generator start and stop (load & battery SOC conditions on L1, load conditions on L2, L3)
general flag user

Goal of configuring assistants:
To be able evaluate load on L1, L2, L3 and based on defined conditions set "Ignore AC" to off and take additional power from grid.

So far I have been working with a 1-phase installation - it has worked well. But in this 3-phase system it doesn't work, no reaction on any assistant conditions.

The question:
Is there any recommended/supported settings for this solution?

I have used mainly following documentation for my setup:
Victron & Pylontech US2000, US3000 and Phantom-S [Victron Energy]
https://www.victronenergy.com/media/pg/Venus_GX/en/index-en.html
https://www.victronenergy.com/media/pg/Energy_Storage_System/en/system-design.html
https://www.victronenergy.com/live/ve.bus:grid-codes-and-loss-of-mains-detection
https://www.victronenergy.com/live/assistants:ignore_ac_input_using_the_generator_assistant
https://www.victronenergy.com/media/pg/VE.Bus_Configuration_Guide/en/index-en.html
https://www.victronenergy.com/blog/2021/02/02/victronconnect-parallel-three-split-phase-setup-and-more/


Thanks in advance for the responses and advice.


Multiplus-IIESSgrid3 phaseAssistants
2 |3000

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