SMA Solar Technology AG System Overview
Technical Description SI2012_2224-TEN082311 13
As an external DC fuse, the BatFuse secures the Sunny Island's battery connection leads.
In addition, the BatFuse allows the disconnection of the inverter on the DC side. You will find more
information in the technical description of the BatFuse. You can obtain the BatFuse as an accessory
from the SMA Solar Technology AG.
Simple Installation and Configuration
Despite the complex function of this battery inverter, the Sunny Island is easy to install and configure.
All the settings required for operation can be quickly and easily programmed in ten steps using the
"Quick Configuration Guide". Using the central operation concept referred to as "Single Point of
Operation", the system/cluster parameters are only set on the master device; all other devices adopt
the configuration automatically.
Menu Navigation and Data Archiving
The easy-to-understand menu navigation allows quick access to all important data, even while the
system is running. The Sunny Island can be controlled easily with the Sunny Remote Control 1
(SRC-1) external display. An MMC/SD card provides simple system supervision and thus simplifies
any service tasks.
The Sunny Island monitors the set voltage and frequency limits on the grid and generator. If these
limits are not observed, it disconnects from the external source without interruption and changes to
stand-alone grid operation. The Sunny Island also has an integrated anti-islanding process in order
to prevent unintended islanding on the public grid. If this process is triggered, the system will also
change to stand-alone mode without any interruption.
You can use the Sunny Island within various system configurations.
• The graphic on the following page shows which components can be integrated into a stand-
alone grid system.
• The graphics on the page after next show the different wiring options (1-phase, 1-phase
parallel and 3-phase).
Saving Data
Always use the MMC/SD card for saving data and events. This way, in case of a failure,
the SMA Solar Technology AG can help you quickly.
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