SMA WB 5000A-11 Installation - Manual (Page 67)

SMA Solar Technology AG Troubleshooting
Installation Manual WB5A_6A-IA-IEN114540 67
Bfr-Srr Internal measurement comparison disturbance or hardware defect.
Corrective measures
• Contact the SMA Service Line if this disturbance occurs frequently.
Derating The "Derating" operating state is a normal operating state which may
occur occasionally and can have several causes.
Once the inverter enters the "Derating" mode, it will display the
"Derating" warning until the next total shutdown of the inverter.
Corrective measures
• Check the heat dissipation as described in Section 8.2 "Checking
the Heat Dissipation" (page 61).
EEPROM Temporary disturbance while data is being written or read from
EEPROM. The data is not relevant for safe operation.
• This disturbance has no impact on the performance of the inverter.
EEPROM dBh EEPROM data is defective. The inverter has switched off because the loss
of data has disabled important functions of the inverter.
Corrective measures
• Contact the SMA Service Line.
EeRestore One of the duplicate records in the EEPROM is defective and has been
reconstructed without loss of data.
• This error message is only for information purposes 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" or "Srr" is an internal display message which has no relevance for
the user).
The inverter disconnects from the power distribution grid for safety
reasons.
Corrective measures
• Eliminate the disturbance.
• If the grid frequency is within the tolerance range and the
disturbances "Fac-Bfr", "Fac-Srr" or "FacFast" are still displayed,
contact the SMA Service Line.
Imax Overcurrent on the AC side. This message is displayed when the current
on the AC grid is greater than specified.
Corrective measures
• Check the plant design and grid conditions.
Message Description and Corrective Measures