General information
SMA
Technologie AG
Page 54
WB11_17-11:FE4205
Operating instructions
9.1.1 Status messages
The Windy Boy produces a range of status messages, depending on the mode in
which it is currently operating. The status messages can vary, depending on the type
of communication system you are using.
Derating
Overtemperature in inverter ("WR"). The Windy Boy reduces its
performance to avoid overheating the device. To avoid unneces-
sary yield losses, the configuration and string size should be
checked. Check if the Windy Boy can be located in a better posi-
tion with better ventilation, thus providing better heat dissipation.
Mpp
The Windy Boy is operating in MPP mode. The Windy Boy takes
the highest possible performance from the PV generator. MPP is
the standard display when operating with normal sunshine (PV
operation only).
Island Mode
The Windy Boy is in Island Mode. This mode is specially con-
ceived for operation in a stand alone power system with a Sunny
Island as network controller. More information about this topic
can be obtained from the Sunny Island operating manual under
the category "Droop Mode".
grid mon.
Testing the mains supply status (mains impedance), relay tests etc.
This message appears during the startup phase, before the Windy
Boy is connected to the mains supply. This message mainly ap-
pears when there is little or no wind.
Offset
Offset compensation of the measurement electronics
disturb.
Fault (see table "Fault messages")
This fault occurs for reasons of safety and prevents the Windy Boy
from connecting to the mains network. This mode can also be man-
ually set.
Stop
Interruption of operation after a fault. This status can also be man-
ually set.
Turbine Mode
Default setting for Windy Boy inverters. The input voltage is con-
verted according to the V/I function U
PV
Start, U
DC
Start and U
D-
C
WindMax. See chapter 5 "Turbine operation” (page 31).
V-Const
Constant current operation (the input voltage is predefined. The
Windy Boy operates in neither MPP mode nor Turbine mode). In
some cases, this can be set as the operational mode.
waiting
The switch-on conditions are not (yet) satisfied.
Zuschalt
Connection to mains grid.
Summary of Contents for Windy Boy 1100
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