Load Curve - Cristec CPS2 Serie Manuel D'utilisation

3.2.5 Load curve

Boost in ON position
With this setting the CPS2 shore-power unit produces a 3-state load curve IUoU: Boost, Absorption, Floating.
U out
charger
0
I out
charger
I nom
0
Boost Phase: starts up automatically when the shore-power unit is turned on if the battery is flat. The current is
then at maximum output.
Absorption Phase: begins when the voltage has reached the maximum Boost level. The current level starts
falling.
These two phases combined last a maximum of 4 hours. If the current falls below 15% of rated current, the
floating phase automatically kicks in. Duration and current intensity depend on how charged the battery is.
Floating Phase: starts after 4 hours or if output current has reached 15% of the shore-power unit's rated current.
The voltage switches to the Floating value and the rated current continues to drop.
UECPS2-12-16/25/40-DEA.DOC
Flat battery
Boost Absorption Floating
U boost
U floating
4 Hrs
Boost Absorption Floating
4 Hrs
Battery only slightly flat
U out
charger
U boost
t 0
I out
charger
I nom
15% I nom
t 0
Boost Absorption Floating
U floating
< 4 Hrs
Boost Absorption Floating
15% I nom
< 4 Hrs
t
t
25