SMA Sunny Island 5048 - Switching a Multicluster System on and off; Activation; Startup; Stopping and Switching off

Multicluster Operation SMA Solar Technology AG
136 SI5048-TB-TEN110340 Technical Description
16.3 Switching a Multicluster System On and Off
16.3.1 Activation / Startup
Switching on a Multicluster system can only take place at the master of the main cluster. The extension
clusters will be started automatically after starting the main cluster. To do this, the DC circuit breakers
of all Sunny Islands in the extension cluster must be set to "ON".
Proceed as follows:
1. Carry out steps 1 - 4 in section 9.1”Switching On” (page62) on the master of the main cluster.
☑ The extension cluster masters show the
following:
2. Press and hold <ENTER> on the main cluster
master.
☑ The remaining time is displayed as a bar.
☑ A beep is heard. The main master is on and in operation. The green LED is on.
16.3.2 Stopping and Switching Off
The Sunny Island Multicluster system can only be stopped at the master of the main cluster. Proceed
at the main cluster master as described in sections 9.2”Stopping the Sunny Island (Standby)”
(page63) and 9.3”Switching Off” (page64).
Starting the Multicluster system
The Multicluster system is started once the main master has started. All extension clusters
follow the main master.
Error occurrence
If the device displays an error message unexpectedly, this error must be fixed before the
Sunny Island can be put into operation. For this purpose, refer to section
20”Troubleshooting” (page194).