6. UPS Operating Modes
On the LCD panel of the UPS, a code is displayed to indicate the operating
mode of the UPS. The codes displayed can also indicate a fault or a warning.
The table below shows the meanings of the different codes that can be
displayed on the UPS LCD.
Note that, at any time instant, only one operating mode or a fault mode can
be represented.
If several warnings exist in a given operating mode, the codes of these
warnings and the code that indicates the operating mode are shown cyclically.
Once a fault comes forth, the codes of all existing warnings will not be
displayed and only the code of the existing fault will be displayed.
Operating mode
code
Operating mode
code
No-output mode
00
Overload fault
07
Bypass mode
01
Over temperature fault
08
Line mode
02
Site fail warning
09
Battery mode
03
Fan fail warning
10
Battery test mode
04
Battery over-charge warning
11
Bus fault
05
Battery weak warning
12
Inverter fault
06
Charger fail warning
13
6.1 Line Mode of Operation
The LCD display of the UPS in the line mode of operation is shown in the
following figure. In this mode of operation, information about the input mains
supply, the battery, the UPS output and the load are displayed. The block
"INVERTER" on the LCD display indicates that the inverter is in operation.
Note that the code that indicates this mode of operation is "02".
