SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

Multicluster Operation SMA Solar Technology AG
16 Multicluster Operation
16.1 Communication between the Sunny Island
For increased output, up to 12 Sunny Island clusters can be interconnected to form a Multicluster
system. Within each cluster, a communication cable connects the master to the slaves. Each cluster is
connected to the others via another communication cable, connected to the respective master.
The Multicluster Piggy-Back (MC-PB) is inserted in the Sunny Island at the external communication
socket. A grounding conductor is provided with the Multicluster Piggy-Back. It must be connected as
displayed in the graphic.
For orientation, refer to the following figure:
Position Description
A Multicluster Piggy-Back (MC-PB)
B Connection of the PE cable
C Cable route
132 SI5048-TB-TEN110340 Technical Description