Displays and Messages LED Operation Indicators
SB3000US-4000US-11-SE1607 SMA America 7-5
Normal Operation
Green LED is on
The inverter is feeding the utility grid in either “MPP”, “Constant Voltage” or
“Turbine” mode.
“MPP” Mode: The Sunny Boy adjusts the voltage and current from the PV array to
obtain the greatest PV output power.
“Constant Voltage” Mode: The voltage from the PV array has been set to a fixed
value. This value is set by using the Sunny Boy Control or the Sunny Data software.
(The parameter name is “V-Const”) This mode is typically used for fuel cell or micro-
hydro applications.
“Turbine” Mode: This mode is used for DC rectified motor sources with a dynamic
power curve (typically wind turbines). The user can set the magnitude and slope of
the curve to match a particular alternator.
Derating
1s
Green LED is shortly
off once per second
The Sunny Boy is designed to operate at full rated power up to 45°C ambient
temperature. The inverter will continue to operate beyond 45°C and will derate as
required to maintain safe internal component temperatures. Unnecessary derating
can also be caused by blocked fan intakes. For this reason the fan intakes should
be inspected often and cleaned when necessary.
To Next Page
Loading...
