SMA Windy Boy 1100, Руководство по эксплуатации

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General information SMA Technologie AG
Page 60 WB11_17-11:FE4205 Operating instructions
Zac-Bfr/
Zac-Srr
The mains impedance has exceeded the permissible range ("Bfr“ or
"Srr“ is an internal message that has no meaning for the user). The
Windy Boy disconnects from the mains grid or stand-alone grid, to
avoid potential damage. The impedance is calculated from the mains
supply impedance and the impedance of the mains connection cable
(AC cable) of the Windy Boy.
Check the mains voltage and mains connections on the Windy Boy.
Use a mains connection cable with an adequate cross section (= low
impedance), and observe the advice to this effect in the installation
instructions in chapter 4.3. If the mains impedance is still too high,
then ask the electricity provider if the characteristics of the mains sup-
ply at the feed-in point can be altered.
Fault code Description