SMA Solar Technology AG Troubleshooting
Installation Guide SMC9-11TLRP-IEN100640 69
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-Bfr
Fac-Srr
FacFast
The grid frequency is no longer within the permissible range
("Bfr" / "Srr" / "Fast" is an internal message that has no meaning for the
user). For safety reasons, the inverter disconnects itself from the grid.
Corrective measures
• Check the grid connection and contact the utility operator if
necessary.
• If the grid frequency is within the tolerance range, yet "Fac-Bfr,"
"Fac-Srr" or "FacFast" faults are still being displayed, please contact
the SMA Serviceline.
Fault Curr Meas
Fault Curr Meas-Srr
Deviation in the differential current measurement / differential current
If this fault message is displayed repeatedly, it means that inverter
operation is permanently disabled.
Corrective measures
• Contact the SMA Serviceline.
HW-Signal Corrective measures
• Contact the SMA Serviceline.
Corrective measures
• If this fault occurs often, contact the SMA Serviceline.
Iac-DC_Offs-Srr A grid disturbance has occurred.
Corrective measures
• Check the grid conditions.
• Contact the SMA Serviceline if this problem occurs often or several
times in succession.
IGBTs The internal hardware monitoring system has detected a fault in the
power electronics.
Corrective measures
• Contact the SMA Serviceline.
Imax Overcurrent on the AC side. This message is displayed if the current in the
AC grid is greater than specified.
Corrective measures
• Check the system design and grid conditions.
Message Description and corrective measure
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