04-3598_ABB_PVA11_T_1-3kVA_EN_REV-B.doc
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Modifications reserved
4.2
Operation
The different codes could be displayed on the LCD screen corresponding to their own operating modes,
and they are illustrated as the following table. At any time, only one normal operating mode or fault mode
is presented. But the warning, even several warnings could appear in a certain normal operating mode at
one time. And the normal operating mode code and the warning code would be shown circularly. Once
one fault is come forth, then all previous warnings would not be shown again but only the fault code is
presented.
Operating mode
Code
Output off or EPO
0
Bypass mode
1
Online mode
2
Battery mode
3
Battery test mode
4
ECO mode
5
Converter mode
6
Table 5: Code of the normal operating mode
4.2.1
Output off or EPO mode
– Code 0
Output Off
The LCD display of a UPS in “Output off” mode is shown in Figure 5. The information on the mains,
battery, UPS output and load wi
ll be displayed and the code “0” will indicate that the UPS is not
supplying energy to the load even if the batteries may be charging.
EPO (Emergency Power Off)
The mode code “0” and the word “EPO” are shown in the LCD display when the Emergency Power Off is
activated. In this mode, the UPS is under alarming situation and can only be shut down after changing
the status of the EPO switch in the rear of the UPS.
Figure 5: LCD display for UPS with output off