![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/9/43/943fba79-304b-43e9-bf3c-e9aa2fcf3c42/943fba79-304b-43e9-bf3c-e9aa2fcf3c42-bg28.png)
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The inverter is switched off if the battery voltage drops below
a factory-set minimum voltage value.
Never store the unit in this condition! The discharged battery
system should be recharged within a week at the latest.
When the voltage and frequency are within the tolerance
range again after the mains is restored, the rectifiers switch
back on automatically. The supply of the inverter through the
mains is resumed and the battery charger charges the
battery.
The bar graph LED (LED chain above the pictograph)
indicates the remaining battery capacity during this operating
mode (see chapter 8, p. 45).
6.1.3 Bypass Operation
Battery
Load
REC
REC INV
Manual
bypass
Manual bypass path
SBS
Mains input
miniature circuit
breaker
Mains
Schematic
diagram
Secured
busbar
Load
Power circuit with
faulty INV
If the inverter is overloaded or if overtemperature is detected,
e.g. also if an inverter defect is detected, voltage is supplied
to the load without interruption via the static bypass switch
(SBS) that switches on automatically. This is signalled by the
Bypass LED.