Product Description
Manual_Grid_Power_FNC_en_V3_0
18
5.3.2.
Buffer 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 not able to supply the maximum load
current at all times. The load current temporarily exceeds the rated current of the DC
source. During this time, the battery supplies current.
The battery is therefore not fully charged at all times.
The charging voltage to be set is 1.45...1.55 V per cell x number of cells connected in
series (measured at the end poles of the battery).
Direct
current
source
Load
Battery
