SMA
Technologie AG
General information
Operating instructions
WB11_17-11:FE4205
Page 59
K1-Schliess /
K1-Close
K1-Trenn /
K1-Open
Fault during relay test. Please contact SMA if this fault occurs often
or repeatedly.
NUW-Mes
Measurement difference between BFR and SRR: Fac, Uac or Zac.
Offset
Fault in the acquisition of measurement data. Contact SMA if this
fault occurs frequently.
Rechner /
NuW-Time-
out
Functional fault in one of the two microcontrollers. Please contact
SMA if this fault occurs often or repeatedly.
Riso
A grounding fault exists or one of the thermally monitored varistors
on the DC input is defective as a result of overvoltage. Consult
trained electrical personnel to correct the fault. You can find Instruc-
tions on how to change the varistors in the "Installation manual".
ROM
The Windy Boy firmware is faulty. Contact SMA if this fault occurs
frequently.
Uac-Bfr /
Vac-Bfr
Uac-Srr /
Vac-Srr
The mains voltage has exceeded the permissible range ("Bfr" or "Srr"
is an internal message that has no meaning for the user). The Uac
fault can have the following causes:
• Mains supply disconnected (circuit breaker or fuse)
• Broken AC cable or
• AC cable has a high internal resistance
For reasons of safety, the Windy Boy disconnects itself from the
mains network. Check the mains voltage and mains connections on
the Windy Boy. If the mains voltage lies outside the acceptable
range because of local conditions, ask the electricity provider if the
voltage can be adjusted at the feed-in point or if they agree to chang-
es in the values of the monitored operational limits.
If the mains voltage lies within an acceptable range and "Uac-Bfr" or
"Uac-Srr" faults are still being displayed, please contact the SMA
hotline.
UpvMax /
Vpv-Max
Over voltage on DC input
Immediately disconnect the DC input of the Windy Boy. Otherwise
the Windy Boy could be severely damaged! Check the configuration
of your system and measure the DC voltage before reconnecting the
Windy Boy to the DC voltage.
Watchdog
Fault in the program code flow monitoring.
Fault code
Description
Summary of Contents for Windy Boy 1100
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Page 4: ...SMA Technologie AG Page 4 WB11_17 11 FE4205 Operating Instructions...
Page 12: ...Safety Information SMA Technologie AG Page 12 WB11_17 11 FE4205 Operating instructions...
Page 36: ...Turbine operation SMA Technologie AG Page 36 WB11_17 11 FE4205 Operating instructions...
Page 38: ...Maintenance and care SMA Technologie AG Page 38 WB11_17 11 FE4205 Operating instructions...
Page 64: ...Stand alone systems SMA Technologie AG Page 64 WB11_17 11 FE4205 Operating instructions...
Page 66: ...Contact SMA Technologie AG Page 66 WB11_17 11 FE4205 Operating instructions...
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