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Idiomas disponibles
Idiomas disponibles
10.5
VARYING THE FLOATING VOLTAGE WITH THE TEMPERATURE:
The EPS-120-5192 and EPS-200-5193 chargers vary the output voltage according to the temperature of the
batteries, in order to maximize their useful life.
This procedure ensures that:
The battery floating voltage varies depending on the temperature of the batteries, as measured
-
by the battery temperature sensor.
-
The battery floating voltage does not vary based on the internal temperature of the device, but
only based on the temperature of the battery sensor.
-
The battery floating voltage varies in line with the formula:
V
=V_float-(T
BAT
Where:
V
:
BAT
V_float:
T
:
BAT
Comp_float:
-
The sensor used has an accuracy of 1°C across the entire range of operating temperatures.
-
The error introduced by the sensor plus the charger in floating voltage is less than that generated
by an error in the temperature measurement of 3ºC.
The correct operation of the parameters across their full range (as long as they do not harm the
-
integrity of the battery).
10.6
BATTERY CONNECTION AND CHARGING:
The EPS-120-5192 and EPS-200-5193 chargers have defined charging modes:
- Charging at constant voltage (or quick charging).
- Floating.
During constant voltage (or quick charge) charging mode, the charger sets a charging voltage that is higher
than the floating voltage. The main characteristics of this mode are:
-
The charging current is limited to a maximum value (ilim).
-
The voltage compensation can be enabled/disabled with temperature (enab_comp).
When the battery current remains stable below a certain value, the charger switches to float charging mode.
It is also possible to switch to this mode when a specific amount of time under load at constant voltage is
exceeded. This mode is characterized by:
-
The charging current is limited to a maximum value (ilim).
-
In this charging mode, the output voltage is always compensated with the battery temperature
(comp_float).
The switching of charging from floating mode to constant voltage mode is not planned, unless:
-
An AC failure occurs and, subsequently, adequate AC reappears.
-
If the device has disconnected the rectifier for a certain period of time and then switches it on
again, e.g. when performing a battery test.
In addition to the charging modes, the device takes the following situations into account:
-
The minimum battery voltage for starting the charging process is 4V (battery detection). The
charger will try to recover the voltage at maximum current, ensuring that the output voltage is
always within the specified range.
-
The indicator lights on the device show which charging mode the charger is in at all times.
-
The battery charging current is always limited, regardless of the charging mode.
Any time AC power is sent to the device after a mains failure or disconnection, it:
-
o
Starts charging the battery
o
The charging process starts in constant voltage mode. Subsequently, it will change to
floating, if the conditions are met.
-
On the other hand, when replacing one battery with another (usually a new one) it is not necessary
to:
o
Stop powering the loads.
o
Switch off the device.
o
Perform any special operation on the device.
It is sufficient to replace them with equivalent batteries, following the battery replacement
procedure in this operating manual.
If the battery type is being changed, the configuration of the device must be checked.
www.premiumpsu.com
Powering Your Challenge
-25)*(Comp_float/1000) [V] figure XX
BAT
is the desired floating voltage for the temperature of the batteries T
is the floating voltage indicated by the manufacturer for 25ºC [V]
is the temperature of the batteries [ºC]
is the setting of the floating voltage as a function of battery temperature
[mV/ºC]
Serie EPS
Manual de Operación
[V]
BAT
MA-5192A-1
20-10-2021
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