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Idiomas disponibles
Idiomas disponibles
10.7
BATTERY DISCHARGE AND DISCONNECTION:
The battery may be disconnected for the following reasons:
- The battery is empty (End of autonomy).
- The battery charging voltage is too high (Maximum battery voltage).
The following operating guidelines should be followed in the disconnection process:
-
When the battery is almost completely discharged, the charger:
o
Generates the "End of autonomy " alarm with sufficient time for it to be sent to the control
centre.
Will disconnect the battery and thus switch off the device and the load.
o
The disconnection is immune to sudden and/or short-term consumption.
o
When the battery voltage exceeds a set limit, the battery is disconnected and will not be
-
reconnected until the voltage is continuously within the range for a certain period of time.
10.8
RECOVERING BATTERY:
The EPS-120-5192 and EPS-200-5193 chargers incorporate a battery recovery process. Its function is to try
to recover a battery that has voltage values which are outside the established limits. Experience in the field
has shown that, after a deep discharge, some batteries can partially recover. In the event of mains failures,
this provides a certain degree of autonomy that would otherwise not be feasible.
This recovery process is initiated, as long as the batteries have a voltage higher than 4V (this being the voltage
of the assembly of batteries connected in series). The recovery process is as follows:
-
Once voltage is sent to the battery, after a certain period of time, it begins to recover its storage
properties. This means that the battery charging current increases.
When the battery current exceeds the current threshold for switching to floating, the battery is
-
considered to be recovered. At this point, the charging process automatically switches to constant
voltage charging mode.
-
Once the battery is in constant voltage charging mode (quick charging), the charging process is
carried out as indicated in point 3.3.1. The charger will switch from constant voltage charging to
float charging, either because it has reached the maximum time, or because the battery current
is lower than the defined float current threshold.
The following is taken into account during the battery recovery process:
-
It guarantees that the output voltage is always within the specified operating range. It is
considered critical that the output voltage is above the minimum voltage. If, by limiting the
charging current (a value that can be set), the battery voltage causes the output voltage to fall
below the minimum value of the output voltage, the battery will be disconnected from the charger,
as the conclusion can be drawn that the batteries are severely damaged.
-
However, the battery recovery state is limited in time. If the constant voltage charging process
has not begun within 15 minutes, the charger will automatically switch to constant voltage
charging.
-
If the recovery process is not successful, an urgent failure is signalled, because the batteries are
disconnected and in poor condition.
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