SMA SUNNY ISLAND 8.0H - Cleaning the Fans

SMA Solar Technology AG 6 Electrical Connection
Installation Manual SI80H-60H-OffGrid-IA-en-11 51
4. For a single-cluster system, lead the white RJ45 data cable through the enclosure opening of the
cable feed-through plate on the master and plug the cable into the ComSmaIn socket.
5. For a multicluster system, connect the white RJ45 data cable and connect the masters to each
other:
• Lead the white RJ45 data cable through the enclosure opening of the cable feed-through
plate on the master of the main cluster and plug the cable into the ComSmaIn socket.
• Remove the terminator from the ComSmaOut socket on the master of the main cluster.
• Lead the grey RJ45 data cable through the enclosure opening of the cable feed-through
plate on the master of the main cluster and plug the cable into the ComSmaOut socket.
• Lead the grey RJ45 data cable through the enclosure opening of the cable feed-through
plate on the master of the extension cluster 1 and plug the cable into the ComSmaIn socket.
• Connect the other extension clusters with each other as described.
6. Leave the terminator plugged into the unused ComSmaOut socket. The communication bus is
equipped with a terminating resistor at the end.
6.15.9 Installing the Cable Feed-Through Plate
1. Select two cable support sleeves with a suitable number of openings.
2. Open the cable support sleeves and lay the cables
in the cable support sleeve.
3. Open the cable feed-through plate and insert the
cable support sleeves into the cable feed-through
plate. Position the flat side of each cable support
sleeve on the flat sides of the cable feed-through
plate.