Vertiv|Liebert® S600 10kVA ~ 20kVA UPS | User Manual 38
1. The device has a gravity sensor function; thus, the LCD display direction will be changed according to the
device layout mode.
4.1.1 LED Indicator
The LED indicators are composed of run indicator and alarm indicator. Table 4-1 gives the indicator description.
Table 4-1 Definition of Indicators
UPS has no output, Inverter is starting
4.1.2 Audible Alarm (Buzzer)
UPS activity is accompanied by the two kinds of sound listed in Table 4-2.
Table 4-2 Description of audible alarm
One beep every 0.5 second
Sound is generated when the UPS critical alarm appears, such as
Inverter overload
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
Sound is generated when the UPS fault appears, such as fuse or
hardware failure.
4.1.3 LCD and Functional Keys
The operator control and display panel provides five control keys, as described in Table 4-3.
Table 4-3 Description of Control Keys
Used to page up, turn left or add value, etc.