Operation
22
900-0198-01-00 Rev A
The charger may perform two functions during Float. Both are called
Float
in the system display. They are
defined here as Refloat and Float.
Refloat
Refloat is a constant-current function. The initial DC current may be as high as the charger’s maximum
current, depending on conditions. This stage is similar to Bulk, except that the charger uses the
Float
Voltage
setting as noted above. The charger delivers current until the batteries reach this value.
Float
Float is a constant-voltage function. The current varies as needed to maintain
Float Voltage
, but typically
drops to a low number. This stage is similar to Absorption, except that the voltage is different.
Time limit:
Float Time
setting. The charger will go Silent once the timer has expired (if another stage is
not still in progress.) The Float timer is reset to its maximum amount whenever the batteries decrease to
the
Re-Float Voltage
setting.
NOTE:
The Float timer begins running any time the battery voltage exceeds the Float Voltage
set point. This usually means that it begins running during the Bulk stage, once the
voltage rises above that level. Often the timer will expire before the bulk and
absorption stages are complete. (This will occur if the Float Time setting is less than
the total of the bulk and absorption stages.) The charger will not enter Refloat or Float
but will go directly to Silent. The charger only spends time in Float stage if the timer
is still running.
To skip this step:
Decreasing the
Float Time
setting to zero causes the inverter to enter Silent as soon as
the absorption stage is complete. The inverter will perform neither the constant-current Refloat nor the
constant-voltage Float.
Setting
Float Voltage
equal to the
Absorb Voltage
level causes the charger to proceed through the
normal three-stage cycle, but at a single voltage.
ALSO:
Setting the charger to <
On
> in the system display causes the charger to remain in Float
continuously so that the Float timer no longer applies. (The charger also skips Bulk, Absorption, and Silent.)
The charger can still begin a single three-stage charge if the criteria are met, after which it will return to
continuous Float.
Silent
Following the expiration of the Float timer, the unit enters (or re-enters) the Silent stage. The unit remains
connected to the AC source, but the charger is inactive. The unit will continue cycling between Float and
Silent until the AC source is lost or a new charge begins.
New Charging Cycle
If the AC source is lost or disconnected, the unit will return to inverting mode if enabled. The battery
voltage will begin to decrease due to loads or natural loss. When the AC source is restored, the inverter
will return to the charging cycle.
The
Absorb Time
setting is reset to its maximum amount whenever the AC source (shore power or
generator) is reconnected. The three-stage cycle starts over from the beginning.
Содержание FX Mobile Series
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