Changing The Battery Usage Through Battery-Backup Systems Without Increased Self-Consumption - SMA SUNNY ISLAND 3.0M Installation Manual

SMA Solar Technology AG
5. Set the parameters for full charge:
• Select the parameter Time for full charge of battery / 222.03 AptTmFul and set to the full-charge absorption
time recommended by the battery manufacturer.
• Select the parameter Full charge cycle time / 222.05 CycTmFul and set to the full-charge cycle time
recommended by the battery manufacturer.
• Select the parameter Cell charge setpoint voltage for full charge / 222.08 ChrgVtgFul and set it to the
cell-voltage setpoint recommended by the battery manufacturer for full charge.
6. Set the parameters for equalization charge:
• Select the parameter Time for equalization charge of battery / 222.04 AptTmEqu and set it to the
equalization-charge absorption time recommended by the battery manufacturer.
• Select the parameter Equalization charge cycle time / 222.06 CycTmEqu and set it to the
equalization-charge cycle time recommended by the battery manufacturer.
• Select the parameter Cell charge setpoint voltage for equalization charge / 222.09 ChrgVtgEqu and
set it to the cell-voltage setpoint recommended by the battery manufacturer for equalization charge.
8.2.3 Changing the Battery Usage Through Battery-Backup Systems
without Increased Self-Consumption
Adjusting the default values
The parameters for battery usage are set automatically to reasonable values during basic configuration for the
respective system. The parameter values can be adjusted if there are special requirements for the system or the
battery.
Figure 21: State of charge ranges of the battery according to the time of year (example)
Installation manual SI30M-44M-60H-80H-IA-en-32
8 Commissioning
73