SMA Sunny Island 5048 - Battery Diagnostics

SMA Solar Technology AG Battery Management
Technical Description SI5048-TB-TEN110340 105
The limits for all three levels can be set independently from each other. This allows individual levels to
be skipped.
For level 1 and 2, a hysteresis of 5 % of the SOC state of charge is designated for exiting this state.
Battery preservation mode LBM1 and LBM2 are 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#)” (page182)).
Parameter BatPro1Soc < BatPro2Soc
If the BatPro1Soc parameter < BatPro2Soc, level 1 is skipped and only level 2 is carried
out.