Battery management SMA Solar Technology AG
100 SI5048-TEN093630 Technical Description
The limits for all three levels can be set independently of each other. This allows individual levels to
be skipped.
For level 1 and 2, a hysteresis of 5 % of the SOC charge level is designated for exiting this state.
Battery preservation mode is not automatically exited if an external voltage source
(grid reconnection/generator start) is present.
The battery preservation mode can be exited by manually starting the Sunny Island. If, within
5 minutes (see above), charging current is detected, the Sunny Island continues to operate; otherwise,
it switches off again.
13.6 Battery Diagnostics
The "320# Battery Diagnosis" menu displays several values that provide information on the past
operational behavior of the battery. These values are helpful in checking the efficiency of the set
parameters and in viewing the typical operating conditions of the battery (see section
19.3”Diagnosis (300#)” (page172)).
Parameter BatPro1Soc < BatPro2Soc
If the BatPro1Soc parameter < BatPro2Soc, level 1 is skipped and only level 2 is carried out.
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