Product Description
Manual_Grid_Power_FNC_en_V3_0
17
5.3.
Operation Modes (see also DIN EN IEC 62485-2)
5.3.1.
Standby parallel operation
Characteristics of this operating mode are:
Load, direct current source and battery are permanently connected in parallel.
The charging voltage is the operating voltage of the battery and at the same time the
system voltage.
The direct current source (charging rectifier) is always able to supply the maximum load
current and the battery charging current.
The battery only supplies power when the direct current source fails.
The charging voltage to be set is 1.40...1.45 V per cell x number of cells connected in
series (measured at the end poles of the battery). This is called float charging. The
battery is permanently in the state of charging with float charge voltage.
To shorten the recharge time, a charging stage can be used where the charging voltage
is set to 1.50...1.60 V per cell x number of cells connected in series. This is referred to as
boost charging.
After charging in boost charge, an automatic switchover to float charge takes place.
Direct
current
source
Load
Battery
