11 Troubleshooting
SMA Solar Technology AG
68
STP5-9TL-IA-en-10
Installation Manual
11 Troubleshooting
11.1 LED Signals
The LEDs indicate the operating state of the inverter.
11.2 Event Messages
Description
Status
Explanation
Green LED
Is lit
Operation
In case of an event, the event message is shown in the
display (see Section 11.2).
Flashing
The requirements for the connection to the electricity grid
have not been met.
Red LED
Is lit
Error
The display shows the error message and event number
(see Section 11.3).
Blue LED
Is lit
Bluetooth
communication is activated.
Display message
Cause
Update file OK
The update file found is valid.
SD card is read
The inverter is currently reading the SD card.
No new update
SDcard
There are no update files relevant for this inverter on the SD card or the
available update has already been carried out.
Grid param. locked
The parameters have been blocked and cannot be changed.
Abort self-test
The self-test was stopped due to DC voltage being too low.
Update communication The inverter updates the communication component.
Update main CPU
The inverter updates the inverter component.
Update Bluetooth
The inverter updates the
Bluetooth
component.
Upd. language table
The inverter updates the language table.
Update completed
The inverter has successfully completed the update.
Grid
param.unchanged
The selected rotary switch position is not assigned or it is not possible to
change the grid parameters.
Inst. code valid
The SMA Grid Guard code entered is valid. Protected parameters have
now been unblocked and you can adjust the parameters.
The parameters are automatically locked again after ten feed-in hours.
Self-test
The self-test is being carried out.