Displays and Messages SMA America, LLC
74 SB50US-80US-eng-IUS112633 Installation Guide
8.4.2 Operating Mode
8.4.3 Operating Parameters of the Sunny Boy
Changes to the parameters labeled with * can lead to changes regarding conformity with IEEE 1547
and must be approved by the on site electric utility company and/or the responsible authority.
8.4.4 Operating Parameters of the Sunny Boy
l
Stop: Manual system stop
Offset: Offset calibration of the electronics (at start-up)
Waiting: PV voltage is not high enough to start
Grid monitoring: Synchronizing to grid (at start-up)
MPP-Search: MPPT range test (at start-up)
MPP: Sunny Boy is in MPP mode (standard operation)
V-Const: Sunny Boy is in MPP mode with constant voltage
Derating: Reduction of the power fed into the grid due to increased cooling element
temperatures
Disturbance: Fault status relating to the grid. As soon as the cause of the fault is no longer
present, this fault will be reset automatically.
Error: Inverter fault, user interaction required
Warning: System warning advising further investigation
Changes to the preset parameters can negatively influence the operation and the
performance of the inverter.
• Changes to the operating parameters must be made by trained qualified personnel.
Name Unit Range Standard Password
Level
Description
AntiIsland-Ampl* deg 0 ... 10 0 Installer Amplification of the anti-island
process
AntiIsland-Freq* mHz 0 ... 2000 500 Installer Repetition rate of the anti-island
process
CO2-Fact lbs./
kWh
0 ... 2 1.7 Installer The Sunny Boy evaluates the yield
and displays the approximate
amount of CO2 that the Sunny Boy
has saved.
This CO2 amount is calculated by
multiplying the generated kWh (E-
total) by the factor defined in the
parameter "CO2".
Default USA/UL1741/
2005, OFF_Grid,
NON IEEE1547
USA/
UL1741/
2005
Installer Used for adjusting the parameters
country specific settings.
Note: After changing one of the
parameters marked with "*", the
parameter "default" changes to
"adjusted" automatically.
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