SMA Windy Boy 1100, Operating Instructions Manual

Page: 28 / 68

Unit description SMA Technologie AG
Page 28 WB11_17-11:FE4205 Operating instructions
"Fehler ROM" indicates, that the Windy Boy has re-
cognized a fault in the Firmware EEPROM. Contact
SMA to correct the fault.
Special display in the case of excessive DC input voltage
If an excessive DC input voltage is present on the
Windy Boy, then this is indicated by rapid blinking of
the background illumination and a corresponding
message.
Immediately disconnect the DC input of the Windy Boy. The pres-
ence of excessive input voltage can lead to irreparable damage!
Make sure that the input voltage never exceeds 400 V.
Before placing the device back into operation, the input voltage must be
checked before reconnecting the DC voltage to the Windy Boy! Since the
Windy Boy is identical to the Sunny Boy, apart from the mode of operation,
the display shows "PV" (Photovoltaic) as its input source.
When the Windy Boy receives an excessive DC input voltage, it automatically
disconnects from the mains network and no longer feeds power into the grid.
When the Windy Boy is in operation, you must always first disconnect the AC
voltage (mains supply) and only then should you disconnect the DC voltage
from the Windy Boy.
Fault displays
of the Firmware EEPROM
Faults
ROM
Overvoltage displays
!PV-Overvoltage!
DISCONNECT DC