Installation Manual

900-0168-01-00 Rev C 9
Planning
Applications
OutBack inverter/chargers are designed to use a battery bank to store energy. They work together
with power from the utility grid or from renewable energy sources, such as photovoltaic (PV) modules,
wind turbines, and other renewable sources. These sources charge the battery, which in turn is used
by the inverter.
FXR series inverters have been designed to work with all types of renewable systems. These include
off-grid, backup, and interactive applications. The inverter’s settings can be changed to accommodate
many applications. Changes are made with the system display.
The FXR inverter has one set of terminals for a single AC source. However, it can use two different AC
sources when an external transfer switch is installed. The inverter can be independently programmed
for each source. It is common to use utility grid power and a gas or diesel generator. Other
combinations of AC sources are possible.
Figure 3 Applications (Example)
In Figure 3, the inverter uses a bidirectional AC input to sell power back to the utility grid. The power
being delivered to the grid (labeled “AC Out”) is excess AC power not being used by the AC loads.
Selling requires an inverter/charger with
Grid Tied
mode available and active.
OR
AC IN
AC IN
Loads
AC OUT
DC OUT
Load Support
Battery Charging
AC or PV
PV Array
DC IN
AC OUT
PV Harvest
Utility Grid
AC Generator
Charge
Controller
Battery Ban
k