Good day Team
I need your assistance with my Victron system, I’m getting overload L1 I , I was searching for this error and I have been realizing that all my multiplus are master , i was resetting all multiplus to default and select 1 phase and back to 3 phase every change done with send configuration and each multiplus for ess assistant done with this app Ve bus configuration , but still nothing changed, all are still master , what I did wrong?
Thx in advance for your assistance
Did you use a mk3 usb interface With ve bus system configurator software?
See:
Yes 
absolutely , is any change to config this whiteout ? If is possible can u explained how
Sorry i dont understand your question 
did you follow the complete manual in my link?
Setting up, wiring, etc.
You need an usb mk3 interface to setup the multiplusses with ve bus as 3 phase system with software,
after that you need to set all the settings and assistants in each multiplus with the ve configure software,
last is making all settings in GX device
That’s normal, each phase has a masters (in case you have multiple units on one phase).
Your overload alarm has another cause.
Thanks Matthias for explanation, I understand that when my system use ESS it’s better not to activate power assist , it’s that right ? The error come when power solar going very high for example 13 kw , In any multiplus2 5kw I set already from beginning 50A ,
Thx 
Thanks Marc , I did already all this setup my system got this year upgrade more solar panels almost 36x450w and now solar production is higher that’s why I got this overload L1 error.
My question was before is any possibility to setup multiplus without mk3? For 3 phased
Thx
Give us some more information about your system.
Components? Configuration? Wiring?
No you cant setup 3 phase without mk3
As matthias said, what does your system looks like, maybe make a drawing,
where is your solar connected to? Mppt? ac inverter on ac in or out? Etc..
