Operation
SMA America, LLC
88
SI5048U-TUS121440
Technical Description
• Active charging process
Meaning of the Symbols Appearing on the ”Home Screen”
Situation-Dependent Value Display
The display shows only values that are relevant in the actual system status. If there is no
generator connected, no generator values are displayed.
Messages on the Slave Devices
On the slave devices, the upper line of the display shows the bar graph for output power
or charging power. The lower line of the display shows the device assignment (e.g., S1 for
slave1) and, where applicable, the status of external sources (*, for a description, see
further above) and the status of relays.
Symbol
Meaning
Nominal power
Nominal load exceeded.
Direction of energy flow between grid/generator side, battery and load side.
Generator/grid side is on.
Battery
Load side (loads/Sunny Boys)
Power pole
The Sunny Island is working with grid limits.
The Sunny Island is working with generator limits.
The Sunny Island is configured as master.
The Sunny Island is configured as slave 1.
The Sunny Island is configured as slave 2.
Status of the external source:
Voltage and frequency of the generator/grid are within set limits.
Status of the external source:
Voltage and frequency of the generator/grid are not within set limits. In this case,
the Sunny Island does not connect the generator to the off-grid power system.
