4.3 LED Signals
LED Status Explanation
Green LED flashing: 2s on
2s off
Waiting for feed-in conditions
The conditions for feed-in operation are not yet met. As
soon as the conditions are met, the inverter will start feed-
in operation.
flashing quickly Update of central processing unit
The central processing unit of the inverter is being up-
dated.
glowing Feed-in operation
The inverter feeds in with a power of at least 90%.
pulsing Feed-in operation
The inverter is equipped with a dynamic power display via
the green LED. Depending on the power, the green LED
pulses fast or slow. If necessary, you can switch off the dy-
namic power display via the green LED.
Off The inverter is not feeding into the utility grid.
Red LED glowing Event occurred
If an event occurs, a distinct event message and the corre-
sponding event number will be displayed in addition on
the inverter user interface or in the communication prod-
uct.
Blue LED flashes slowly for
approx. one
minute
Communication connection is being established
The inverter is establishing a connection to a local network
or is establishing a direct connection to an end device via
Ethernet (e.g. computer, tablet PC or smartphone).
flashes quickly for
approx. two min-
utes
WPS active
The WPS function is active.
glowing Communication active
There is an active connection with a local network or there
is a direct connection with an end device via Ethernet (e.g.
computer, tablet PC or smartphone).
4Product Description
SMA Solar Technology AG
Operating ManualSB15-25-1VL-40-BE-en-1118