Outback FX-R Series Operator Manual

Operation
900-0167-01-01 Rev A 41
Auxiliary Terminals
The FXR inverter has an auxiliary (“
A
UX
“) output that responds to different criteria to control
certain operations. These terminals provide a 12 Vdc output that can deliver up to 0.7 Adc.
The
A
UX
output has three states: continuous
Off
, continuous
On
, and
Auto
, which allows that
output to be activated using the automatic auxiliary functions. (All functions are defaulted to
Auto
.) These items are based in the FXR inverter and accessed using the system display. The
system display and other devices have separate programming, such as Advanced Generator
Start (AGS), that can also control the
A
UX
outputs. To avoid conflicts, the output should be
turned
Off
when the AGS function is active.
For the FXR automatic functions, typical applications include signaling a generator to start,
sending a fault alarm signal, or running a small fan to ventilate the batteries. When considering
these applications, plan for both connection requirements and programming with the system
display.
The
A
UX
terminals have a series of set points which are used by various functions. Not all
points are used by all functions. Each mode description (below) will show the set points used
by that function.
 Low DC voltage settings
 High DC voltage settings
 On delay settings, in increments of 0.1 minutes
 Off delay settings, in increments of 0.1 minutes
These are not temperature-compensated. Compensation is only used for inverter battery charging.
There are nine functions, each geared toward a different application. These functions are
summarized in Table 5 on page 43.
NOTE
:
The
A
UX
output is defaulted to
Vent Fan.
A sealed FXR inverter with the Turbo Fan is
required to use the
A
UX
output for fan control. In a single-inverter system, no other functions
can be used.

Load Shed
can perform load management. It is intended to turn off designated loads during low
battery periods to conserve remaining battery power.
 When battery voltage rises above a settable high voltage level, the AUX output is activated after a
settable delay. The A
UX output is used to energize a larger external relay (normally open) which
is connected to non-vital loads. The A
UX output will be deactivated once the battery voltage falls
below a low voltage setting for a settable delay period.
 Load Shed will also turn off when the inverter enters a high-temperature condition or when the AC
output voltage drops below a specific AC voltage for more than 3 seconds. This voltage limit is
15 volts below the setting of the inverter’s output voltage. For the inverter’s default output voltage
of 120 Vac, the limit is 105 Vac. (See the menu tables beginning on page 65.) The limit is not
otherwise settable.
 Load Shed will also turn off if the input current exceeds the Input AC Limit setting while the
inverter is using an AC source.
 Settable parameters include:
 Low and high DC voltage
 On and off delay

Gen Alert
is used as a controller for an AC generator with a remote start feature, although it has
limited functionality. (The generator recharges batteries using the inverter’s battery charger.)
 The AUX output will activate to start the generator when the battery voltage falls to a low set point
for a settable delay. The A
UX output is deactivated, shutting off the generator, once the battery
voltage rises to a high voltage setting for a settable delay period.