For testing and updating purpose i connected my new multiplus 2 on ac in with grid.
I can read configuration but after a few minutes a relay in multiplus clicks and my 16amp fuse triggers.
So i feel not confident enugh to upgrade firmware because of power loss while updating.
Nothing else is connected at this moment with the multiplus.
If i connect the Multiplus II to a VE bus gx i got an error ve11 (grid relay test failure)
Maybe someone knows whats going wrong.
Best regards
Michael