SMA SB 3300TL - Manual (Page 16)

Device Description SMA Technologie AG
Page 12 SB3300TL-11:FE1905 Operating Instructions
3.3.4 Description of Operating States
Stand-by at Night
The Sunny Boy 3300TL is in so-called
stand-by operation. This state is
reached if the input power at the in-
verter is too low for feeding opera-
tion (all string voltages are below
125 V) and not sufficient for normal
operation.
Initialization
The on-board computer of the Sunny
Boy 3300TL is in the initialization
phase. The DC input voltage at the
Sunny Boy is above approx. 125 V.
Power is already supplied to the inter-
nal board, but is not yet sufficient for
grid feeding. Data transmission is not
possible yet.
Feeding Operation
The Sunny Boy 3300TL has success-
fully completed the self-test of the
measurement electronics and the
MSD and starts feeding to the grid.
MPP operation (default):
The Sunny Boy 3300TL automatically
determines the MPP voltage of the
PV-generator.
All LEDs are off
All LEDs are on or
blinking
Green LED is on