SMA SUNNY MINI CENTRAL 4600A Installation Manual page 67

SMA Solar Technology AG
Message
Derating
EEPROM
EEPROM dBh
EeRestore
Fac‑Bfr
Fac‑Srr
FacFast
K1‑Close
K1‑Open
Imax
Installation Manual
Description and corrective measure
The "Derating" operating state is a normal operating state which may
occur occasionally and can have several causes.
Once the inverter enters the "Derating" operating state, it will display the
"Derating" warning until the next total disconnection of the device
(at the end of the day).
Corrective measures
• Check the heat dissipation as described in section 8.2 "Checking
Heat Dissipation" (page 60).
Transition fault while data is being written or read from EEPROM.
The data is not relevant for safe operation.
• This fault has no effect on the performance of the inverter.
EEPROM data is defective. The inverter has switched itself off because the
loss of data has disabled important functions of the inverter.
Corrective measures
• Contact the SMA Service Line.
One of the duplicate records in the EEPROM is defective and has been
reconstructed without loss of data.
• This error message only serves to inform you and has no effect on
the performance of the inverter.
The power frequency is no longer within the permissible range
("Bfr"/"Srr"/"Fast" is an internal message that has no meaning for the
user). The inverter disconnects itself from the power distribution grid for
safety reasons.
Corrective measures
• Check the grid connection and contact the grid operator if
necessary.
• If the power frequency is within the tolerable range, but "Fac‑Bfr",
"Fac‑Srr" or "FacFast" faults are still displayed, contact the
SMA Service Line.
Error during relay test.
Corrective measures
• If this fault frequently occurs or occurs several times consecutively,
contact the SMA Service Line.
Overcurrent on the AC side. This message is displayed if the current in the
AC grid is higher than specified.
Corrective measures
• Check the plant design and grid conditions.
SMC46-60A-IA-IEN120471
Troubleshooting
67