Connecting the Measuring Cable of the Multicluster-Box 12
Qualified person
Requirements:
- The inverters to be connected must be Sunny Island 6.0H / 8.0H inverters.
- The utility grid must be connected to the multicluster system (see Multicluster-Box 12 operating manual).
Procedure:
- On every Sunny Island of the main cluster, connect the measuring cable for voltage monitoring of the Multicluster-Box 12 to the ExtVtg terminal ( > Connecting ExtVtg):
On the master, connect the X112 3 and X112 4 conductors to ExtVtg.
On slave 1, connect the X112 7 and X112 8 insulated conductors to ExtVtg.
On slave 2, connect the X112 9 and X112 10 insulated conductors to ExtVtg.
- At the master, connect the AC contactor monitoring ( > Connecting BatVtgOut, DigIn, BatTMP and BatCur):
Connect the master BatVtgOut- with the DigIn-.
Thread both insulated conductors through a ferrite included in the scope of delivery.
Connect the insulated conductor from X113 3 to BatVtgOut+.
Connect the insulated conductor from X113 4 to DigIn+.