SMA SB 1.5-1VL-40 Service Manual - Manual (Page 24)

Event number Message, cause and corrective measures
10286 WLAN connection lost
The inverter has lost WLAN connection to the selected network.
Corrective measures:
• Ensure that the WLAN router or WLAN Access Point is still active.
• Ensure that the WLAN router or WLAN Access Point is in range and is
signalizing correct operation.
• If this message is displayed often, improve the WLAN connection by
using a WLAN repeater.
27301 Update communication
The inverter is updating the communication component.
27302 Update main CPU
The inverter is updating the inverter component.
27312 Update completed
The inverter has successfully completed the update.
29004 Grid parameter unchanged
Changing the grid parameters is not possible.
20901 Inst. code valid
The entered Grid Guard code is valid. Protected parameters have now been
unlocked and you can adjust the parameters. The parameters will be automati-
cally locked again after ten feed-in hours.
20906 Self-test
The self-test is in progress.
4 Event Messages SMA Solar Technology AG
Service Manual for Installers SB15-25-SG-en-10 24