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Vertiv I Liebert ITA2 30kVA I Manual
4.1.2
LED Indicators
The LED indicators consist of the run indicator and alarm indicator. Table 4-1 provides a
description of the these indicators.
Table 4-1
Description of LED indicators
Indicator
Color
State
Meaning
Run indicator
Green
On
UPS has output
Blinking
Inverter is starting
Off
UPS has no output, inverter is starting
Alarm
indicator
Yellow
On
Alarm occurs
Red
On
Fault occurs
/
Off
No alarm, no fault
4.1.3
Audible Alarm (Buzzer)
The UPS operation is accompanied with the following two different kinds of audible alarms
shown in Table 4-2.
Table 4-2 Description of audible alarm
Sound
Meaning
Continuous beep
Sound is generated when the UPS fault appears, such as fuse or hardware
failure
One beep every 0.5 second
Sound is generated when the UPS critical alarm appears, such as Inverter
overload
One beep every second
Sound is generated when the UPS critical alarm appears, such as battery low
voltage
One beep every 3.3 second
Sound is generated when the UPS general alarm appears
4.1.4
LCD And Functional Keys
The operation and display panel include five functional keys, the respective functions are
described in Table 4-3.
Table 4-3 Description of control buttons
Functional key
Silkprint
Description
Confirm
Used to confirm or enter
Up
Used to page up, turn left or add value, etc.
Down
Used to page down, turn right or reduce value, etc.
Escape
Used to back, escape, cancel or forbid operation
Power
Used to power on, power off or transfer to Byapss mode
