SMA S Technical Description page 12

The Sunny Backup System S
The intelligent battery management built into the Sunny Backup 2200 protects the battery from
overcharging and deep discharge. This ensures that the battery service life stipulated by the battery
manufacturer can be achieved.
As an external DC fuse, the BatFuse A.01 protects the battery connections of the Sunny Backup 2200.
Additionally, the BatFuse A.01 enables the DC-side disconnection of the Sunny Backup 2200.
The Sunny Backup 2200 performs the entire controlling and regulation of the system. If the system is
in grid-parallel operation, the Sunny Backup 2200 ensures standard-compliant grid monitoring and
battery-preserving charging. The Sunny Backup 2200 is extremely quick to detect any failure of the
public grid and disconnects the system from the grid. After approx. 50 ms, the loads will be already
supplied with electricity again, from the battery. After a matter of seconds, the PV system switches to
this stand-alone grid, and either powers the loads, or is used for recharging the batteries. The
efficiency during charging, regardless of whether from the grid, or from the PV system, and during
discharging, is up to 93 %. Due to the 's very high overload capability of up to 3.8 kW for 5 minutes,
and the integrated smooth startup of the Sunny Backup 2200, critical loads with very high start
currents can also be started safely. Thus, over-dimensioning of the Sunny Backup 2200 is not
necessary.
Requirement according to VDE 0126-1-1 and guidelines of other countries
The Sunny Backup System S meets all requirements of the VDE 0126-1-1 guidelines that
are required in Germany for feeding PV electricity into the grid as well as guidelines of
other countries. The switching devices for PV feeding are implemented redundantly, and
are monitored. The safety of this system has been inspected and certified by the German
Professional Association for Precision Engineering and Electrotechnology.
Information
The Sunny Backup System S is only intended for use in TN systems!
Despite the complex functions of the Sunny Backup system, it can be installed and configured with
ease. All special material required for installation is included in the delivery. Additional sub-distribution
units are generally not necessary. The safety and fuse protection concept on the consumer side, and
that of the PV system, are generally not impaired by the Sunny Backup 2200, and do not need to be
adapted.
All the settings required for operation can be quickly and easily programmed in six steps using the
"Quick Configuration Guide" of the Sunny Backup 2200. The easy-to-understand menu navigation
allows quick access to all important data, even while the system is running. An MMC/SD card
provides uncomplicated system control, and thus makes any service work easier.
Saving data and events
Always use the MMC/SD card to save data and events. This is necessary in order for SMA
Solar Technology AG to be able to help you in the event of a fault.
12 SBU2200-TEN083320
SMA Solar Technology AG
Technical Description