User Manual 10H52188UM51 - Rev. 1 - 09/2011
41
Liebert NXC
Operation and Display Panel
4.3
Detailed Description Of Menu Items
The description in the following refers to the LCD primary screen shown in Figure 4-3.
System information window
The system information window displays the current time and the UPS name. You are not required for operating the
information of this window. For details, see Table 4-5.
Table 4-5 System information window
Item Explanation
Liebert NXC 020kVA
UPS name, which stands for Liebert
®
Liebert NXC 20kVA UPS
12: 30: 36
Current time (format: 24 Hours, h: min: s)
Menu window and data window
The menu window displays the menu name of the data window. The data window displays the items of the menu selected from
the menu window. UPS parameters can be browsed and functions can be set through the menu window and data window.
Details are given in Table 4-6.
Table 4-6 Menu window and data window
Menu Item
Explanation
Mains
L-N voltage (V)
Phase voltage
L-N current (A)
Phase current
Frequency (Hz)
Input frequency
L-L voltage (V)
Line voltage
Power factor
Power factor
Bypass
L-N voltage (V)
Phase voltage
Frequency (Hz)
Bypass frequency
L-L voltage (V)
Line voltage
Output
L-N voltage (V)
Phase voltage
L-N current (A)
Phase current
Frequency (Hz)
Output frequency
L-L voltage (V)
Line voltage
Power factor
Power factor
Load
Sout (kVA)
Sout: Apparent power
Pout (kW)
Pout: Active power
Qout (kVAR)
Qout: Reactive power
Load level (%)
The percentage of the UPS rated load
Crest factor
Output current crest factor
System
Sout (kVA)
Sout: Apparent power
Pout (kW)
Pout: Active power
Qout (kVAR)
Qout: Reactive power
Battery
Battery voltage (V)
Battery bus voltage
Battery current (A)
Battery bus current
Battery temperature (°C)
Battery temperature (°C)
Battery remain time
(Min.)
Battery runtime remaining
Battery capacity (%)
Battery capacity (%), compared with the new battery capacity
Battery boost charging
Battery is boost charging
Battery float charging
Battery is float charging
Battery is not connected
Battery is not connected
Event
Current alarm
Display the current alarm. See Table 4-8 for UPS alarm message list
Records Historical
alarm
Display
all historical alarms. See Table 4-8 for UPS alarm message list
Language Language
selection
Options are displayed in 13 languades: Swedish, Spanish, Russian,
Chinese, Portuguese, Polish, Italian, German, French, English, Dutch,
Czech, and Turkish
