SMA America, LLC 5 Troubleshooting
User Manual SB30-40-BA-eng-BUS121010 21
5Troubleshooting
5.1 LED Signals
The LEDs display the operating state of the inverter and indicate the messages in the display via
various blink codes.
Figure 7: Position of the LEDs
Position Description Status Explanation
A Green LED Glowing Operation
Indicates normal operation of the inverter.
Blinks 3 times per
second
Start
The inverter is calibrating internal systems. The
calibration lasts 10 seconds and the inverter
begins normal operation.
Stop
The inverter has been set to stop mode
manually.
Blinks once per
second
Waiting
The inverter is checking the conditions for grid
connection.
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