Troubleshooting; Led Signals - SMA SUNNY BOY 3000-US Installation Manual

SMA America, LLC

10 Troubleshooting

10.1 LED Signals

The LEDs represent the current operating state of the inverter clarify the messages in the display by
means of the various blink codes.
Figure 25: Position of the LEDs
Position Designation
A Green LED
Installation Manual
Status Explanation
Glowing Operation
Indicates standard operation of the inverter.
Blinks 3 times per Start
second
The inverter is calibrating internal systems. The
calibration takes 10 s. Following successful
calibration, the inverter resumes normal
operation.
Stop
The inverter has been manually set to stop
mode.
Blinks once per Waiting
second
The inverter is monitoring the grid limits and
the DC voltage of the PV array. If both values
meet the feed-in conditions, the inverter begins
feeding into the power distribution grid.
Goes out briefly Derating
once per second
The inverter reduces the power in order to
protect the internal components from
overheating.
10 Troubleshooting
SB30-40-US-IA-en-33 63