SMA SB 1.5-1VL-40 - Manual (Page 15)

4.3 LED Signals
LED Status Explanation
Green LED flashing Waiting for connection conditions
The LED is on for two seconds and then off for two sec-
onds. The conditions for feed-in operation are not yet met.
As soon as the conditions are met, the inverter will start
feed-in operation.
glowing Feed-in operation
(Power: ≥ 90%, relative to the active power limit set)
The inverter feeds in with a power of at least 90%.
pulsing Feed-in operation
(Power: < 90%, relative to the active power limit set)
The inverter feeds in with a power of less than 90%. The
LED flashes on and off uniformly. The higher the power,
the greater the frequency. If required, you can switch the
dynamic power display off (see Section 9.16 "Switching
the Dynamic Power Display Off", page 48).
Red LED glowing Error
If an error occurs, a distinct error message and the corre-
sponding event number will be displayed in addition on
the inverter user interface or in the communication prod-
uct. The error must be rectified by a qualified person (for
troubleshooting, see the service manual at www.SMA-So-
lar.com).
Blue LED flashes slowly for
approx. one
minute Communication connection is being established
The inverter is establishing a connection to a local network
or creating an Ethernet direct connection to an end device
(e.g. smartphone, tablet PC or computer).
flashes slowly for
approx. two min-
utes WPS active
The WPS function of the inverter for WLAN direct connec-
tion with an end device (e.g. smartphone, tablet PC or
computer) is active.
glowing Communication active
There is an active connection with a local network or an
Ethernet direct connection with an end device (e.g. smart-
phone, tablet PC or computer).
4 Product Description SMA Solar Technology AG
Operating Manual 15 SB15-25-BE-en-10