SMA Solar Technology AG Operation
Technical Description SI5048-TB-TEN110340 79
Meaning of the Symbols that appear in the Home Screen:
Messages on the slave devices
The slave devices only show the bar display for output and charging power and the device
assignment in the bottom line (e. g. S1 for slave 1) as well as the status of external sources,
if applicable (*, for the description see above).
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
Power distribution grid is connected. The Sunny Island is working with grid limits.
The generator is connected. 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 external source are not within set limits. In this case,
the Sunny Island does not connect the generator to the stand-alone grid.
Status of the external source:
The maximal admissible generator reverse power was exceeded and the
Sunny Island has disconnected the generator from the stand-alone grid.
"Battery" request reason:
The generator has been requested as a result of the battery state of charge.
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