SMA WB 5000 - Manual (Page 60)

General information SMA Technology AG
Page 60 WB50_60-11:FE4105 Operating instructions
10.2 Fault messages
If a fault develops, the Windy Boy 5000 / 6000 generates a message, which is
dependent on the operational mode and the type of fault
.
Fault code Description
Bfr-Srr
NUW-FAC
NUW-UAC
NUW-ZAC
Internal measurement comparison fault: the Windy Boy 5000 /
6000 found a too large difference between values provided by the
BFR and SRR. Contact SMA.
dZac-Bfr
dZac-Srr The changes in mains impedance exceed the permissible range
("Bfr" or "Srr" is an internal message that has no meaning for the
user).
The Windy Boy 5000 / 6000 disconnects from the mains supply or
stand-alone grid, to avoid potential damage. If possible, check the
mains impedance and check how often major deviations occur. If
repeated variations occur and this is causing "dZac-Bfr" or "dZac-
Srr" faults, ask the electricity provider if they agree to a modification
of the operating parameters. Discuss the proposed parameters with
the SMA hotline.
EEPROM A data transfer fault occurred during reading or writing of data from
the EEPROM. The data is not relevant for safe operation - this fault
has no effect on performance.
EEPROM
dBh Data EEPROM is defective. The device has switched itself off
because the loss of important functions has disabled the Windy Boy
5000 / 6000. Contact SMA.
EeRestore One of the duplicate data sets in the EEPROM is defective and has
been reconstructed without loss of data.
Fac-Bfr
Fac-Srr The mains frequency has exceeded the permissible range ("Bfr" or
"Srr" is an internal message that has no meaning for the user). The
Windy Boy 5000 / 6000 disconnects from the mains supply or stand-
alone grid, to avoid potential damage. Check the mains frequency
and mains connections on the Windy Boy 5000 / 6000. If the mains
frequency lies outside the permissible range because of local
conditions, ask the electricity provider if they agree to a modification
of the operating parameters.
If the mains frequency lies within an acceptable range and "Fac-Bfr"
or "Fac-Srr" faults are still being displayed, please contact the SMA
hotline.