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122 SI5048-TB-TEN110340 Technical Description
Slave Device Failure
You can influence the behavior of the cluster upon failure of a slave device. For more information, see
section 12.8”Reaction in Case of Failures” (page96).
14.2 Grid
The Sunny Island supports the operation of grid backup systems on the grid. Here, a distinction is
made between two main states: either a power distribution grid and stand-alone grid system are
connected or a power distribution grid and stand-alone grid system are disconnected. The operating
mode of the Sunny Island is derived from this. If the stand-alone grid power system is disconnected,
the Sunny Island alone is responsible for powering this stand-alone grid system. If the power
distribution grid is connected to the stand-alone grid system, the stand-alone grid system is powered
from the power distribution grid. In this case, the voltage and frequency in the stand-alone grid are
identical with the power distribution grid.
Operating mode "Grid Charge"
Under specific conditions, the system can also temporarily feed energy from the stand-
alone grid system into the power distribution grid in the GridCharge operating mode
("232.08 GdMod" parameter).
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