Failure Search SMA Solar Technology AG
48 SB13_21TL-IA-IEN121060 Installation Guide
dZac-Bfr
dZac-Srr
Sudden changes in grid impedance exceed the permissible range ("Bfr"
or "Srr" is an internal message of no relevance for the user).
For safety reasons, the inverter disconnects itself from the grid.
Corrective measures
Check the grid impedance and observe how often major deviations
occur.
If repeated frequency variations occur and this is causing "dZac-Bfr" or
"dZac-Srr" errors, ask the network operator if they would agree to modify
the operating parameter (dZac-Max).
Discuss any changes to this operating parameter with the SMA
Serviceline.
EEPROM Transition disturbance while data is being written or read from EEPROM.
The data is not relevant for safe operation.
The disturbance has no effect on the performance of the inverter.
EEPROM dBh EEPROM data is defective, the device has switched off because the loss
of data has disabled important functions of the inverter.
Corrective measures
• Contact the SMA Serviceline.
EeRestore One of the duplicate data sets in the EEPROM is defective and has been
reconstructed without loss of data.
• The error message only serves to inform you and has no effect on
the performance of the inverter.
Fac
Fac-Bfr
Fac-Srr
The grid frequency is no longer within the permissible range ("Bfr" or "Srr"
is an internal message of no relevance for the user). For safety reasons,
the inverter disconnects itself from the grid.
Corrective measures
• Check the grid connection and contact the network operator if
necessary.
• If the grid frequency is within the tolerable range but the "Fac-Bfr",
"Fac-Srr" or "FacFast" errors are still being displayed, contact the
SMA Serviceline.
Iac-DC_Offs-Srr
Iac-DC_Offs-Bfr
There is a grid fault ("Bfr" or "Srr" is an internal message of no relevance
for the user).
Corrective measures
• Check the grid conditions.
• Contact the SMA Serviceline if this fault occurs frequently or
repeatedly.
Message Description and Corrective Measure
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