Emerson Liebert NX User Manual

Operator Control Panel and Display
57
7.1.5 Detailed Description of Menu Items
The description that follows refers to the graphic LCD monitor window shown on Figure 33.
UPS System Window: This fixed-pane window displays current time and date and identifies the UPS,
its configuration and its status.
Menu and Data Window
Use the horizontal arrow keys to navigate between any of the selectable menu and data windows.
Table 20 UPS system window
Description Explanation
Liebert NX UPS family name
2006-10-22 YYYY-MM-DD (see Settings menu for other date formats)
12:30:36 Current Time (24 hr HH:MM:SS format)
20kVA 3x1 20kVA = UPS rated output, 3x1 = 3-phase input, 1-phase output
(Configuration)
Single, ECO, Master, Slave or Unit # 1
Single = single double-conversion unit
ECO = single stand-by unit with double-conversion fall-back
Master = master in a 1+1 Hot Stand By system
Slave = slave in a 1+1 Hot Stand By system
Unit # 1 = of max 6 double-conversion units in a parallel system
(Status)
Normal, Warning or Fault
Normal = UPS operating Normal
Warning = System attention required, e.g. AC Input Failure
Fault = UPS Fuse or Hardware Failure
Table 21 Descriptions of UPS menus and data window items
Menu
Type Item Type Explanation
Mains
(input)
L-N voltage (V) Phase voltage
L-N current (A) Phase current
Frequency (Hz) Input frequency
L-L voltage (v Line-line voltage
Power factor Power factor
TX Input
L-N voltage (V) Phase voltage
L-L voltage (V) Line-line voltage
Bypass
L-N voltage (V) Phase voltage
Frequency (Hz) Bypass frequency
Output
L-N voltage (V) Phase voltage
L-N current (A) Phase current
Frequency (Hz) Input frequency
Power factor Power factor
TX Output L-N voltage (V) Phase voltage
Load
Sout (kVA) Sout: Apparent power
Pout (kW) Pout: Active power
Qout (kVAR) Qout: Reactive power
Loadlevel % The percent of the UPS rating load
Crest factor Output current Crest Factor
System
Sout (kVA) Sout: Apparent power
Pout (kW) Pout: Active power
Qout (kVAR) Qout: Reactive power
Single unit, no parallel data
When configured as a single unit, UPS has only native load, no system
load.

Emerson Liebert NX Specifications

General

Brand	Emerson
Model	Liebert NX
Category	UPS
Language	English