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I have a Multiplus system Multiplus2 with three phases as an island for three years. No Problems.
A few days ago there was the indication that the time was different.
Now the plant has stopped. The three Multiplus no longer synchronize to three-phase and so I can no longer start.
Addendum, is it possible that the earth relay of a Multiplus is defective or that it does not work to check whether it is closed. The system is an island and has no access to the grid or shore power. Therefore, the system has its own earth connection. Is it possible to switch off this test of the Multiplus, as the earth connection is always present and should not be disconnected?
