Auxiliary Terminals - Alpha OutBack Power Radian Series Operator's Manual

Auxiliary Terminals

The Radian inverter has two sets of terminals that respond to different criteria to control certain
operations. The 12V A
control external loads. The R
(at 250 Vac or 30 Vdc). Each set of terminals has its own set of programmed criteria. Each has
identical options available. (When the options described below refer generically to the "A
output", it can mean either set of terminals.)
Each A output has three states: continuous Off, continuous On, and Auto, which allows that
UX
output to be activated using the automatic auxiliary functions. (All functions are defaulted to
Auto.) These items are based in the Radian 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
should be Off when the AGS function is active.
For the Radian 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 terminals have a series of set points which are used by various functions. Both sets of
UX
terminals have the same options available, but they are programmed independently. Not all set
points are used by all functions. Each A
are used for 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. (The 12V
A outputs are defaulted to different selections.) These functions are summarized in Table 4
UX
on page 42.
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 A
settable delay. The A
is connected to non-vital loads. The A
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
30 volts below the setting of the inverter's output voltage. For the Radian inverter's default output
voltage of 240 Vac, the limit is 210 Vac, or 105 Vac if output L1 or L2 decrease in voltage
independently. (See page 66.) 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
900-0161-01-01 Rev B
terminals provide a 12 Vdc output that can deliver up to 0.7 Adc to
UX
A terminals are "dry" relay contacts rated up to 10 amps
ELAY UX
mode description below will detail the set points that
UX
output is used to energize a larger external relay (normally open) which
UX
UX
outputs. To avoid conflicts, the output
UX
output will be deactivated once the battery voltage falls
Operation
UX
and R
AUX ELAY
output is activated after a
UX
39