Light chaser
Procedure:
- This is a new installation:
When the inverter is disconnected, check that the ribbon cable has been correctly connected.
If the error then still persists, replace the inverter.
- It is an existing system:
Was a firmware update carried out previously (e.g. replacement of the EEPROM)?
Yes, a firmware update was previously carried out:
Was the firmware update carried out according to the appropriate installation manual?
The cause for the “light chaser” might be that the update was carried out contrary to the manual. This means that the inverter was not correctly disconnected from voltage sources and discharged, and the firmware was damaged by residual voltages or by ESD measures that were not observed. Maybe an unsuitable firmware was installed.
Re-install the “old” firmware, if necessary. The light chaser should no longer be displayed. Then install the current firmware (EEPROM) according to the installation manual.
If the error still persists, the inverter must be replaced.
No, a firmware update has not been carried out previously:
The inverter must be replaced.
All work on the inverter and the cabling of the PV array must be carried out by an electrically qualified person. SMA accepts no liability for the information and solutions given in the Online Service Center Additional information can be found in our Online Service Center’s terms and conditions of use.