14 Connecting External Sources SMA America, LLC
132 SI4548_6048-US-TB_en-13 Technical description
You can configure the Sunny Island in such a way that it charges its battery automatically via the grid
as soon as the state of charge is low. To activate this function, set the "232.41 GdSocEna" parameter
to "Enable" and the "560.01 GdManStr" parameter to "Auto."
The Sunny Island connects to the grid, when the state of charge of its batteries lies within the limits
determined by the following parameters:
• "233.01 GdSocTm1Str" to "233.02 GdSocTm1Stp"
• "233.03 GdSocTm2Str" to "233.04 GdSocTm2Stp"
The Sunny Island differentiates between two time periods, for which you can set different limiting
values to connect and disconnect the grid using the parameters mentioned above: These two time
periods are subdivided via the following parameters:
• "233.05 GdTm1Str"
• "233.06 GdTm2Str"
The Sunny Island charges its batteries using the battery charging process which is set via the
parameter "233.09 GdStrChrgMod".
Grid as generator: Connecting the grid as soon as the loads request high power
from the Sunny Island
You can configure the Sunny Island in such a way that it automatically connects to the grid, as soon
as the connected loads request high power from the Sunny Island. To activate this function, set the
"232.42 GdPwrEna" parameter to "Enable". The Sunny Island connects to the grid when the power
requested by the loads lies within the limits that are defined by the following parameters:
• "233.07 GdPwrStr" to "233.08 GdPwrStp"
Feeding into the grid
If the parameter "232.08.GdMod" is set to "GridFeed", the Sunny Island can feed into the grid,
whether or not "232.42 GdPwrEna" is enabled.
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