6.1.1 LED Indicator
The LEDs shown on the mini current path represent the various UPS power paths and show the
current UPS operating status. The status description of indicators is shown in table 6-2.
Table 6-2 Status description of indicator
Rectifier
indicator
Rectifier starting, mains normal
Battery
indicator
Steady red
Battery abnormal (battery failure, no battery or battery reverse) or
battery converter abnormal (failure, overcurrent or over temperature)
, EOD
Flashing red Battery low voltage
Battery and battery converter normal, battery not charging
Bypass
indicator
Load power supplied by bypass
Steady red
Bypass power abnormal or out of normal range, or static bypass
switch fault
Flashing red Bypass voltage abnormal
Inverter
indicator
Load power supplied by inverter
Inverter On, start, synchronization of standby (ECO mode)
System power not supplied by inverter, inverter fault
Flashing red System power supplied by inverter, inverter fault
Load
indicator
Steady red
UPS output overload and overtime, or output short, or output no
power supply
Flashing red Overload output of UPS
Status
indicator
Steady green Normal operation
6.1.2 Audible Alarm (buzzer)
There are two different types of audible alarm during UPS operation as shown in table 6-3.
Table 6-3 Description of audible alarm
long alarm
when system has general alarm (for example: AC fault), this audible
alarm can be heard
Continuous alarm
When system has serious faults (for example: fuse or hardware fault),
this audible alarm can be heard
6.1.3 Functional Keys
There are 4 functional keys on operator control and display panel, which are used together with LCD.
The functions description is shown in table 6-4
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