SMA America, LLC
Connecting External Sources
Technical Description
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Grid as generator: Charging the Sunny Island via the grid in order to avoid deep
discharge
You can configure the Sunny Island in such way, that it charges its battery automatically via the grid
as soon as the charge level 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 public grid, when the charge level of its batteries lies within the limits
determined by the following parameters:
• ”233.01 GdSocTm1Str” — ”233.02 GdSocTm1Stp”
• ”233.03 GdSocTm2Str” — ”233.04 GdSocTm2Stp”
The Sunny Islands 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”.
Manual grid start deactivates settings for automatic grid start
Via the ”560.01 GdManStr” parameter you can define whether the grid is to be
connected or not.
• ”Stop”: public grid is never connected.
• ”Start”: public grid is always connected.
• ”Auto”: public grid connects automatically and protects the battery from deep
discharge.
The following chapter describes how to perform the settings for an automatic grid start.
