Displays and Messages
SMA America, LLC
64
SB50US-80US-eng-IUS112633
Installation Guide
8.1 LED Operation Indicators
Standby (night)
The inverter is in standby mode. The input voltage is too low for operation.
Initialization
The inverter initializes. The power from the PV array is sufficient to initialize the control current.
However, it is not sufficient for standard operation. Data transmission is not possible during
initialization.
In the event of inclement weather or low solar irradiation, all LEDs may simultaneously light up and
then go out again. This is not a disturbance. The inverter is attempting to initialize. The power available
from the PV array is not sufficient for standard operation.
Start
The inverter calibrates the internal systems. The power available from the PV array is not sufficient for
standard operation. The calibration lasts 10 seconds and the inverter records standard operation. The
inverter also displays this status if it has manually been set to STOP mode. For the duration of the
parameter setting, the actual PV voltage P-Start must be lower than the set PV‑Start voltage (see section
9 ”Troubleshooting” (page 77)).
