Outback FXR2012A User Manual

Operation
900-0167-01-00 Rev A 39
Figure 9 Repeated Charging (3
rd
, 4
th
, and 5
th
Cycles)

Prior to the beginning of Cycle 3, the AC source was lost. The battery voltage decreased below the level of
the
Re-Bulk
set point. Whenever this occurs, the Absorption timer resets to its maximum amount.

In Figure 9, Cycle 3 begins when the AC source is restored again. The charger begins a new cycle by
entering Bulk stage. When it enters Absorption, the timer runs until it is interrupted by a loss of AC power.

Following Cycle 3, the voltage does not decrease below
Re-Bulk
. The Absorption timer retains the
remaining time from Cycle 3.

Cycle 4 begins when the AC source is restored again. The charger enters Bulk stage and proceeds to
Absorption. This stage does not last for the full duration of the
Absorb Time
setting. The timer uses up the
remaining time from Cycle 3. Absorption ends when the timer expires.
In this example, the duration was also longer than the
Float Time
setting. Because the Float timer began
running near the beginning of Cycle 3 and also Cycle 4 (when the batteries exceeded the
Float Voltage
setting), the
Float Time
has also expired. The charger does not enter Refloat or Float and goes Silent.
During the Silent period, AC is lost again. The battery voltage decreases until it reaches the
Re-Bulk
set
point, prompting a new charge cycle. The Absorption timer resets to its maximum amount.

When Cycle 5 begins, the charger proceeds through the Bulk stage and then the Absorption stage. At the
end of Cycle 5, the
Float Time
has expired, so the charger goes Silent.
C
y
cle 4
C
y
cle 3
Absorption
Set Point
Float
Set Point
Re-Bul
k
Set Point
AC Loss
Absorption
timer resets
Absorption
timer runs
(part)
Inverter waiting to charge when AC restored; a new set point is in use
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
AC Loss
Bulk
Abs.
Silent
Bulk
Absorption
Silent
Bul
k
Absorption
C
y
cle 5
Absorption
timer
resets
Absorption
timer runs
(remaining time)
Absorption
timer runs
(complete)

Outback FXR2012A Specifications

General

Brand	Outback
Model	FXR2012A
Category	Battery Charger
Language	English