Outback FXR2012A User Manual

Operation
38 900-0167-01-00 Rev A
Figure 8 Repeated Charging (1
st
and 2
nd
Cycles)
Example of Multiple Cycles

In Figure 8 (Cycle 1), the charger initially completes Absorption. When the Absorption timer expires, the
charger goes Silent until battery voltage decreases to the
Re-Float
setting. The Float timer is reset to its
maximum. The charger proceeds through Refloat and Float until it is interrupted by a loss of AC power.

Cycle 2 begins when the AC source is restored. During the AC loss, the battery voltage did not decrease to
the
Re-Float
setting, so
Float Time
retains the remainder of the previous cycle. The charger returns to
Refloat and proceeds through the Float stage. Cycle 2 completes the Float stage when its timer expires. It
then goes Silent.
Note that in Cycle 1,
Absorb Time
had expired. It was not reset afterward and retained a “remaining run
time” of zero. The Bulk and Absorb stages do not occur on subsequent cycles until the timer reads
something other than zero.

This graph is continued in Figure 9. During the Silent period AC is lost again. The battery voltage decreases
until it reaches the Re-Bulk set point. This causes the charger to prepare a new three-stage cycle from the
beginning, but it cannot do so until the AC source is restored.
Voltage
Absorption
Set Point
Float
Set Point
Re-Float
Set Point
Time
AC Loss
Absorption
timer runs
C
y
cle 1
C
y
cle 2
Float timer
resets
Float timer runs (part)
Float timer runs
Inverter now charging to a new set point
Inverter has reached the charging set point
Inverter completed charging; the previous set point is no longer in use
Inverter waiting to charge when AC restored; the previous set point is still in use
AC Loss
Refloat
Absorption
Float
Silent
Refloat
Float
Silent

Outback FXR2012A Specifications

General

Brand	Outback
Model	FXR2012A
Category	Battery Charger
Language	English