SMA SB 700U - Manual (Page 77)

SB700U-11:SE3207 SMA America 7-3
Error messages
In case of an error, the Sunny Boy 700U generates the error code according to the
operating mode and the detected error.
Error Code Description Error Type
Bfr-Srr Communication between micro-controllers is failing Error
EarthCur-
Max-Bfr BFR-earth current between PV+ and GND is out of tolera-
ble range Error
EarthCur-
Max-Srr SRR-earth current between PV+ and GND is out of tolera-
ble range Error
EEPROM Transition failure during reading or writing of data EE-
PROM, the data is not essential for safe operation - this fail-
ure does not effect performance. Error
EEPROM p Data EEPROM defective, device is set to permanent dis-
able due to the fact that the data loss affects important func-
tions of the inverter. Contact SMA. Error
EeRestore Internal failure Error
Fac-Bfr
Fac-Srr The AC grid frequency is exceeding the allowable range.
(„Bfr“ or „Srr“ is an internal message and is not important
to the user.) The Sunny Boy assumes that the public grid is
down and disconnects from the grid in order to avoid is-
landing.
Check the grid frequency and the grid cable connection in
the Sunny Boy enclosure. If the grid frequency is out of
range due to your local grid conditions contact the utility
company and ask, if it is permissable to change the grid
monitoring parameters of the inverter. Contact SMA about
how to change the grid monitoring parameters of your Sun-
ny Boy. If the grid frequency is within the tolerable range
and you still observe the failure message „Fac-Bfr“ or „Fac-
Srr“ contact SMA.
Disturbance
GFDI Fuse
Open The GFDI-Fuse is defective or open Error
Imax Overcurrent on the AC side. This failure code is indicated
in case the current to the AC grid exceeds the specification.
This may happen in case of harmfull interference on the
grid. If you observe „F-Imax“ often, check your grid. For as-
sistance contact SMA. Disturbance