Emerson Liebert Remote Monitoring Panel User manual

AC Power
For Business-Critical Continuity™
HELPF4F3F2F1
EMERSON
™
Network Power
Liebert
®
Press any key back to main menu
Lieber t N X
081 kVA -3 x3
12 - 16 -2009
Single
12 :22 : 14
Normal
STATUS
EMERSON
™
Network Power
SILENCE ON/OFF
Remote Monitor Panel
Liebert
NX
Liebert®Remote Monitoring Panel™
User Manual

i
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
INFORMATION FOR THE PROTECTION OF THE ENVIRONMENT . . . . . . . . . . . . . . . . . . . .1
1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 Preliminary checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 Mounting the RMP on Drywall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Electrical connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1 Startup and Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 LED Mimic Power Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Audible Alarms—Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.4 Direct Access Push Buttons—Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 LCD Monitor and Menu Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6 Detailed Description of Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.7 Status and Event Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.8 Prompt (Popup) Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.9 Dynamic Energy Flow Chart and UPS Help Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.10 Default screen saver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.0 TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.1 Agency and Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

ii
FIGURES
Figure 1 Remote Monitoring Panel components and functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 2 Remote Monitoring Panel layout constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 3 RMP electrical input plug. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 4 Communication cable connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 5 Mounting hole dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 6 Power and communication cable routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 7 RS-485 cable connection to Liebert NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 8 Opening screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 9 Data loading progress screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 10 UPS and RMP firmware are compatible screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 11 Silence On/Off screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 12 Communication with UPS failed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 13 Firmware not compatible with UPS screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 14 Graphic LCD monitor windows and keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 15 Menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 16 Help screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 17 Default screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TABLES
Table 1 RMP component location in Figure 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2 Communication cable specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 3 Rectifier indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 4 Battery indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 5 Bypass indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 6 Inverter indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 7 Load indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 8 Status (Alarm) indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 9 Audible alarm key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 10 Menu key Icons and their meaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 11 UPS system window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 12 Descriptions of RMP menus and data window items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 13 RMP messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 14 Prompt windows, meanings controlled at UPS only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 15 Prompt windows, meanings controlled at RMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 16 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 17 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 18 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 19 Cable specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 20 Electromagnetic interference (EMI)—emission limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 21 Electromagnetic susceptibility (EMS)—immunity levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety and operating instructions concerning the installation and
operation of the Liebert NX Remote Monitoring Panel (RMP). Read all safety, installation and operat-
ing instructions before beginning installation. Adhere to all warnings on the unit and in this manual.
Follow all operating and user instructions.
The Liebert NX Remote Monitoring Panel must be commissioned and serviced by an engineer
approved by Liebert. Failure to do so may result in personnel safety risk, equipment malfunction and
invalidation of warranty.
The Remote Monitoring Panel is designed and intended for commercial and industrial use. It is not
recommended for use in life-support applications.
ELECTROMAGNETIC COMPATIBILITY—This is a low-emission, Class A product. Operating
this device in a residential area is likely to cause harmful interference that users must correct at their
own expense. Pursuant to FCC regulations, operation is subject to the following two conditions:
1. This device may not cause harmful interference; and
2. This device must accept any interference received, including interference that may cause
undesired operation.
Conformity and Standards
This equipment complies with CE directives 73/23 & 93/68 (LV Safety) and 89/336 (EMC), with Aus-
tralia and New Zealand EMC Framework (C-Tick) and with the following product standards for Unin-
terruptible Power System (UPS).
• EN / IEC / AS 62040-1-1-General and safety requirements for use in operator access area
• EN / IEC / AS 62040-2-EMC requirements; Class A compliant
• EN / IEC / AS 62040-3-Performance requirements and test methods
This equipment complies with UL 60950-1:2003, First Edition CSA C22.2 No. 60950-1-03 1st Ed.
April 1, 2003.
For details, see 4.0 - Technical Specifications.
Continued compliance requires installation in accordance with these instructions and the use of man-
ufacturer approved accessories only.
General
The unit must be grounded in accordance with applicable current local electrical regulations.
As with other types of power equipment, dangerous voltages are present within the RMP enclosure.
The risk of contact with these voltages is minimized as the live component parts are housed behind a
hinged, lockable door. No risk exists to any personnel when operating the equipment in the normal
manner, following the recommended operating procedures.
All equipment maintenance and servicing procedures involve internal access and should be carried
out only by trained personnel.
User-Serviceable Parts
There are no user-serviceable parts behind covers requiring a tool for removal. All equipment mainte-
nance and servicing procedures involving internal access requires the use of a tool and should be car-
ried out only by trained personnel.
INFORMATION FOR THE PROTECTION OF THE ENVIRONMENT
Unit Servicing
This unit makes use of components dangerous for the environment, including electronic cards and
other electronic components. Any of these components that are removed from the unit must be taken
to specialized collection and disposal centers.
Unit Dismantling
If this unit must be dismantled, this operation must be carried out only by properly trained and qual-
ified specialized personnel. The unit must be taken to a center that specializes in collection and dis-
posal of dangerous substances.

Introduction
2
1.0 INTRODUCTION
The Liebert NX Remote Monitoring Panel (RMP) is designed as a remote user interface to monitor
Liebert NX Uninterruptible Power Systems. The RMP monochrome liquid crystal display measures
122 x 92mm (4.8 x 3.6 inches). It reports the same data and status and alarm messages that are
shown by the LCD on the UPS’s door. The RMP does not offer control of the UPS.
The RMP should be installed in a room where it is readily and easily observed by personnel, such as
facility and maintenance staff. This type location enhances the unit’s capacity to provide notice if a
status change or alarm requires an electrician or a UPS technician's intervention.
The RMP can monitor only one Liebert NX UPS. If there are multiple Liebert NX UPSs, an RMP will
need to be installed for each unit. For parallel systems, the system load information may be viewed
via the system screen from any RMP that is connected to a UPS in that system (see 3.6 - Detailed
Description of Menu Items.)
Figure 1 Remote Monitoring Panel components and functions
98101211
17
16
4
6
7
5
1
3
2
F1 F2 F3 HELPF4
14 15
13
11-21/32"
(296mm)
11-13/32"
(290mm)
15-53/64" (402mm)
4-41/64"
(118mm)
4-15/16"
(100mm)
15-3/4" (400mm)

Introduction
3
Figure 2 Remote Monitoring Panel layout constraints
Table 1 RMP component location in Figure 1
1 Bypass Input 10 F3 Function Key
2 Inverter—DC to AC 11 F4 Function Key
3 Rectifier—Input AC to DC 12 Help Key
4 Load—AC Output 13 Silence On/Off Audible—Alarm Mute
5 Battery—DC Backup 14 RS-232—for firmware update
6 Audible Alarm—Buzzer 15 RS-232—Reserved, not used
7 UPS Status and Alarm indicator 16 AC power input cable entry
8 F1 Function Key 17 RS-485 communication cable entry
9 F2 Function Key
UPS Room
Liebert NX
Communication
Cable; Maxi-
mum Length
100m (328ft.)
(field-supplied)
Maintenance or Control Room
HELPF4F3F2F1
EMERSON
™
Network Power
Liebert
®
Press any key back t o main menu
Lieber t NX
081 kVA -3x 3
12- 16 -20 09
Singl e
12:22 : 14
Normal
STATUS
EMERSON
™
Netwo rk Power
SILENCEON/OFF
RemoteMonitor Panel
Liebert
NX

Installation
4
2.0 INSTALLATION
2.1 Preliminary checks
Before beginning to install the RMP, verify that the equipment has reached site in its own packaging
and in good general condition. Please notify immediately the shipper, Emerson Network Power and
your local Liebert representative of any damage.
These items should be included in the package:
• RMP box with LCD screen
• 4 mounting screws
• 4 plastic wall anchors (6mm-by-26mm)
• 2 Phoenix connectors for connection with the UPS.
• User manual
2.2 Location
The RMP is designed for indoor use and should be installed in an environment with clean air and ade-
quate ventilation to keep the temperature within the specified operating range (see Table 17).
If the RMP is to be installed on a wall or other vertical surface, ensure that the surface can bear the
weight (see Table 16) and there is no water leakage.
2.3 Power Supply
The RMP requires a 120V/230V AC input (for detailed electrical specifications, see Table 18).
Figure 3 RMP electrical input plug
2.4 Cable Specifications
Connect the RMP to the Liebert NX with a field-supplied communication cable meeting the specifica-
tions in Table 2.
Table 2 Communication cable specifications
No Item Specification
1 Connector type Both terminals are all 4-pin Phoenix terminal (supplied with RMP).
2 Cable Length <100m
3 Cable type a shielded and twisted pair of 0.5 to 1 mm2(16-20AWG) wires
4 Connection mode See Figure 4
15.6mm 4mm
14mm

Installation
5
Figure 4 Communication cable connection
2.5 Mounting the RMP on Drywall
To hang the RMP on drywall or similar surface:
1. Drill four holes (6mm-by-26mm) in the wall, spacing them as shown in Figure 5.
2. Insert the four factory-supplied, plastic anchors into the holes.
3. Insert one screw into each anchor and tighten firmly.
4. Remove the four hooks from the RMP, reverse them, then reattach them to the RMP.
5. Hang the RMP on the wall by slipping the hooks over the heads of the screws and lowering the
RMP slowly until the screws are seated in the slotted portion of the hooks.
Figure 5 Mounting hole dimensions
UPS_U2_J24
Up to 328 ft. (100 m)
RMP_X1_J1 Shield
Shield
485-
485+ 485-
485+
1
2
3
4
1
2
3
4
STATUS
Remote Monitor Panel
S ILEN C E O N/ O FF
Liebert NX
Emerson
Network P ower
TM
14-3/16"
(365mm)
12"
(306mm)
F1 F2 F4F3 HELP

Installation
6
2.6 Electrical connections
Connect the power and communication cables to the RMP as shown in Figure 6.
Figure 6 Power and communication cable routing
Extract four
screws to
remove the
cable access
cover
Attach AC Input
cable to labeled
connector
Attach
communi-
cation
cable to
labeled
RS-485
connector
Reinstall cable access cover,
inserting AC Input and
communication cables into
respective, labeled slots

Installation
7
Connect the RS-485 communication cable to the Liebert NX as shown in Figure 7.
Figure 7 RS-485 cable connection to Liebert NX
Connect the other end of the RS-485 signal cable to the X4 slot on the monitor board. The monitor
board is inside the UPS front door.
Communication connections
on Remote Monitoring Panel board

Operation
8
3.0 OPERATION
3.1 Startup and Reset
The RMP will start as soon as the power supply is connected. The LCD will illuminate without any
data displayed; the LEDs will light up yellow.
After 20 seconds, all LEDs will turn off and the LCD will show the opening screen, shown in
Figure 8, for 10 seconds.
Figure 8 Opening screen
If all conditions above are met, the RMP will start to get all messages from the UPS. The screen in
Figure 9 will be displayed while the data is loading. The loading time is about 30 seconds.
Figure 9 Data loading progress screen
If the firmware in the UPS and the RMP are compatible, the RMP will display the screen shown in
Figure 10. The NX screen will display the same screen.
F2 F4 F5F1 F3
Liebert NX 2006-01-22 12:30:36
30kVA-3X3 Unit #1 Normal
?
Bypass
Main
Vphase V
Iphase A
Freq. Hz
Vline V
P. F.
A(AB)
120
20.5
50.1
208
0.99
B( BC)
120
20.5
50.1
208
0.99
C(CA)
120
20.5
50.1
208
0.99
Output
Loading data from UPS
F2 F4 HELPF1 F3
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16

Operation
9
Figure 10 UPS and RMP firmware are compatible screen
When the Silence On/Off button is pushed, the relevant screen in Figure 11 will be displayed for
5 seconds.
Figure 11 Silence On/Off screens
If the RMP is abnormal or the connection with the UPS is incorrect, the RMP will show the screen in
Figure 12 to report communication with UPS failed.
NOTE
The Silence On/Off button will control only the audible alarm in the Remote Monitoring
Panel. It will not silence the audible alarm in the UPS.
Liebert NX 2006-01-22 12:30:36
30kVA-3X3 Unit #1 Normal
?
System
Output
Sout (kVA)
Pout (kW)
Qout (kVAR)
A(AB)
10
10
0
B( BC)
10
10
0
C(CA)
10
10
0
Load
Loadlevel (%)
Crest Factor
50 50 50
1.41.41.4
F2 F4 HELPF1 F3
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16
Liebert NX 2006-01-22 12:30:36
30kVA-3X3 Unit #1 Normal
?
Bypass
Main
Vphase V
Iphase A
Freq. Hz
Vline V
P. F.
A(AB)
120
20.5
50.1
208
0.99
B( B C)
120
20.5
50.1
208
0.99
C(CA)
120
20.5
50.1
208
0.99
Output
Remote Monitor Panel
silence
F2 F4 HELPF1 F3
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16
Liebert NX 2006-01-22 12:30:36
30kVA-3X3 Unit #1 Normal
?
Bypass
Main
Vphase V
Iphase A
Freq. Hz
Vline V
P. F.
A(AB)
120
20.5
50.1
208
0.99
B( B C)
120
20.5
50.1
208
0.99
C(CA)
120
20.5
50.1
208
0.99
Output
Remote Monitor Panel
silence off
F2 F4 HELPF1 F3
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16
RMP Silence On RMP Silence Off

Operation
10
Figure 12 Communication with UPS failed
If the RMP is functioning properly and the connection with UPS is correct, but the UPS does not sup-
port the communication function with RMP, then the RMP will display a the screen shown in
Figure 13 to report “Firmware is not Compatible with UPS.”
Figure 13 Firmware not compatible with UPS screen
If the RMP determines that the UPS firmware is not compatible, after loading all messages available
from the UPS, the RMP will display the screen shown in Figure 13.
Liebert NX 2006-01-22 12:30:36
30kVA-3X3 Unit #1 Normal
?
Bypass
Main
Vphase V
Iphase A
Freq. Hz
Vline V
P. F.
A(AB)
120
20.5
50.1
208
0.99
B( BC)
120
20.5
50.1
208
0.99
C(CA)
120
20.5
50.1
208
0.99
Output
Communication with UPS
Failed
CommErrID=0x01
F2 F4 HELPF1 F3
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16
Liebert NX 2006-01-22 12:30:36
30kVA-3X3 Unit #1 Normal
?
Bypass
Main
Vphase V
Iphase A
Freq. Hz
Vline V
P. F.
A(AB)
120
20.5
50.1
208
0.99
B( BC)
120
20.5
50.1
208
0.99
C(CA)
120
20.5
50.1
208
0.99
Output
Firmware is not
Compatible with UPS
RMP:Vxxx UPS:Vxxx
F2 F4 HELPF1 F3
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16

Operation
11
3.2 LED Mimic Power Flow
The LEDs mounted on the mimic flow chart represent the various power paths and current UPS oper-
ational status.
3.3 Audible Alarms—Buzzer
UPS activity is accompanied by the following sounds
Table 3 Rectifier indicator
Green Rectifier in Normal Operation
Flashing
Green Input AC Normal, but rectifier not operating
Red Rectifier Failed
Off Rectifier Not operating, Input AC Not Available or out of normal range
Table 4 Battery indicator
Green Battery Normal, but discharging and powering the load
Flashing
Green Battery End of Discharge pre-warning
Red
Battery abnormal (Failed, Absent or Polarity Reversed) or Battery
Converter abnormal
(Failed, overcurrent, overtemperature)
Off Battery and Converter Normal, Battery charging
Table 5 Bypass indicator
Green Load on Bypass power
Red Bypass not available, out of normal range or Static bypass switch fault
Off Bypass Normal, load not on bypass
Table 6 Inverter indicator
Green Inverter Normal and powering the load
Flashing
Green Inverter ON, starting up, synchronizing, or standing by (ECO mode)
Red Inverter failed
Off Inverter not operating
Table 7 Load indicator
Green UPS output ON and Normal
Red UPS output ON and Overloaded
Off UPS output OFF.
Table 8 Status (Alarm) indicator
Green Normal Operation
Yellow UPS Warning e.g. AC Input Failure
Red UPS fault (ex. Fuse or Hardware failure)
Table 9 Audible alarm key
Single beep Direct Access key acknowledgement
One beep per second UPS Warning, (ex. AC Input Failure)
Continuous beep Fault, (ex. Fuse or Hardware Failure)

Operation
12
3.4 Direct Access Push Buttons—Keys
The NX Remote Monitoring Panel has one direct access push button: Silence ON/OFF. The Silence
ON/OFF button is a toggle type buzzer mute; any new fault re-enables the buzzer.
3.5 LCD Monitor and Menu Keys
The menu-driven, 320 x 240 dot graphic LCD monitor displays real time data and, at the same time,
stores 512 historical records that can be retrieved for reference and diagnosis.
The user can perform commands or browse through the input, output, load and battery parameters.
For quick reference, the UPS status and any warnings are always highlighted without the need of
navigating through the menu. The versions of converter firmware, inverter firmware and internal
monitor firmware can also be displayed on the LCD.
Menu keys F1 to F4 are used to navigate within the graphic LCD monitor windows.
Figure 14 Graphic LCD monitor windows and keypad
The function of keys F1 to F4 is shown by a self-explanatory icon as appropriate for the particular
window. As shown in Figure 14 above, pressing F1 moves the cursor (resting in “OUTPUT”) from the
UPS Menu Window (2) to current record window (4) where it would first rest in “Input breaker closed’.
In a similar manner, pressing F2 would move the cursor from the Output data window to the Bypass
data window.
Table 10 Menu key Icons and their meaning
Key F1 F2 F3 F4 Help
Window Type 1
Next Data Window
LEFT RIGHT
ENTER HELP
Window Type 2
Escape
UP DOWN
?
ESC
Liebert NX
20kVA 3X3
?
Output
2006-10-22
Unit #1
17:32:20
Normal
F2 F3 F4 HELPF1
Bypass
Main
L-N
Vphase V 220
Iphase A 20.5
Freq. Hz 50.1
Vline V 380
P.F. 0.99
Input breaker closed 01-12 12:28:16
Manual turn on 01-12 12:30:06
UPS in normal mode 01-22 12:30:16
4 - Current Record
Window
3 - UPS Data
Window
2 - UPS Menu
Window
1 - UPS System
Window
5 - Keypad Window

Operation
13
The summary menu tree is shown in Figure 15. Refer to Table 12 for a detailed description of each
menu item.
Figure 15 Menu tree
Battery
Battery voltage (V)
Battery current (A)
Battery temperature (°C)
Remain Time Min.
Battery capacity (%)
Battery boost charging
Battery float charging
Battery disconnected
Command
Battery maintenance test
Battery capacity test
System test
Stop testing
Freshening Charge
Stop Freshening Charge
Modem Auto-answer enable
Version
UPS version
UPS model
Settings
Display contrast
Date format set
Date & time
Comm1 baud rate
Comm2 baud rate
Comm3 baud rate
Communication address
Communication mode
Callback times
Phone No.1
Phone No.2
Phone No.3
Command password
System
Sout (kVA)
Pout (kW)
Qout (kVAR)
Single unit, no
parallel data
Records
(history log)
Language
(Choices for
display)
Mains (input)
L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor
Load
Sout (kVA)
Pout (kW)
Qout (kVAR)
Loadlevel %
Crest factor
Bypass
L-N voltage (V)
Frequency (Hz)
L-L voltage (V)
Output
L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor
TX Input *
L-N voltage (V)
L-L voltage (V)
* When configured, input transformer voltages are
displayed on the front LCD. When not activated, the
values are hidden.
** When configured, output transformer voltages are
displayed on the front LCD. When not activated, the
values are hidden.
TX Output **
L-N voltage (V)
L-L voltage (V)
Visible from the RMP,
but the control is
available at UPS only.
Visible from the RMP,
but the control is avail-
able at UPS only.

Operation
14
3.6 Detailed Description of Menu Items
The description that follows refers to the graphic LCD monitor window shown on Figure 14.
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 11 UPS system window
Description Explanation
Liebert NX UPS family name
2005-10-22 YYYY-MM-DD (see Settings menu for other date formats)
12:30:36 Current Time (24 hr HH:MM:SS format)
30kVA-3x3 30kVA = UPS rated output, 3 x 3 = 3-phase input and 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 12 Descriptions of RMP 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
L-L voltage (A) Line-line voltage
Output
L-N voltage (V) Phase voltage
L-N current (A) Phase current
Frequency (Hz) Output frequency
L-L voltage (V) Line-line voltage
Power factor Power factor
TX Output L-N voltage (V) Phase voltage
L-L voltage (V) Line-line voltage
Load
Sout (kVA) Sout: Apparent power
Pout (kW) Pout: Active power
Qout (kVAR) Qout: Reactive power
Load level % 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.

Operation
15
Current Record Window
Keeps a log the events that resulted in the current mode of operation. Ignores transient conditions
that have been resolved. Use “page” (F1) and up / down arrow to read the events.
For a complete history log, refer to the Records tab of the Menu and Data Window.
Refer to Table 13 for a complete list of supported status messages.
Battery
Battery voltage (V) Battery bus voltage
Battery current (A) Battery bus current
Battery temperature (°C) Battery temperature °C
Remain Time Min. Battery run time remaining
Battery boost charging Battery is boost charging
Battery float charging Battery is float charging
Battery disconnected Battery is not connected
Records (history log) Displays all records in the history log
Language (choices for text displayed) User may select any of 12 languages for LCD text.
Settings
Display contrast Adjust the LCD display contrast
Date format set * Choose the format for date display: M/D/Y, D/M/Y, M/D/Y, Y/M/D
Date & time * Set the date and time
Comm1 baud rate * Communication baud rate setting for IntelliSlot 1
Comm2 baud rate * Communication baud rate setting for IntelliSlot 2
Comm3 baud rate * Communication baud rate setting for IntelliSlot 3
Communication address * This setting is applicable to RS485 communication mode
Communication mode * Communication Mode Setting
Callback times * When IntelliSlot 1 Communication mode is Modem, this parameter sets
the number of times a number is redialed to send an alarm notification.
Phone No.1 * When IntelliSlot 1 Communication mode is Modem, this is the first phone
number to be dialed (to send an alarm notification).
Phone No.2 * When IntelliSlot 1 Communication mode is Modem, this is the second
phone number to be dialed (to send an alarm notification).
Phone No.3 * When IntelliSlot 1 Communication mode is Modem, this is the third phone
number to be dialed (to send an alarm notification).
Command password * User can modify the command password.
Command
(start/stop
battery &
system
tests)
Battery maintenance test * This test performs a partial discharge of the battery to obtain a rough
estimate of the battery capacity. Load must be between 20% and 100%.
Battery capacity test * This test performs a full discharge of the battery to obtain a precise
measure of the battery capacity. Load must be between 20% and 100%.
System test * This is a self-test of the UPS. When the user activates this function, a
popup window appears about 5 seconds later to show the results.
Stop testing * Manually stops a battery maintenance test, battery capacity test or system
test.
Freshening Charge * This command will allow a temporary Equalize charge for the batteries.
This charge is configurable for 1 to 36 hours
Stop Freshening Charge * Manually stop a Freshening Charge
Modem Auto-answer
enable * Manually enable the auto-answer function of modem.
Version UPS version Provides UPS firmware version numbers for the inverter, rectifier and
software display board.
UPS model Provides UPS model information—for example, 400V-50Hz.
* Visible from the RMP, but the control is available at UPS only.
Table 12 Descriptions of RMP menus and data window items (continued)
Menu
Type Item Type Explanation

Operation
16
3.7 Status and Event Messages
Refer to Table 13 for descriptions of events and alarms.
Table 13 RMP messages
Message Description / Suggested Action (if any)
Inverter Comm. Fail Internal RS485 communication failure between monitor and inverter
Rectifier Comm. Fail Internal RS485 communication failure between monitor and rectifier
Parallel Comm. Fail
The CAN communication between different UPSs within a parallel system fails.
1. Check if there are some UPSs not powered on in the parallel system. If so, power on these
UPSs and check if the alarm disappears.
2. Press Fault Clear push button.
Battery Overtemp. The Battery temperature is over limit. Check the battery temperature and ventilation
Ambient Overtemp. The Ambient temperature is over limit. Check the ventilation of UPS room.
Battery Fault Battery detected faulty (Reserved)
Replace Battery Battery test failed, Battery should be replaced.
Battery Low Pre-warning
Before the end of discharge, battery undervoltage pre-warning should occur. After this pre-
warning, battery should have the capacity for 3 minutes discharging with full load. The time is
user-configured from 3 to 60 minutes.
Shut down the load in time.
Battery End of Discharge Inverter turned off due to low battery voltage. Check the utility failure and try to recover it.
Mains Volt. Abnormal Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown.
Check the input line-to-neutral voltage amplitude of rectifier.
Mains Undervoltage Mains Voltage is undervoltage with derated load.
Check the input line-to-line voltage amplitude of rectifier
Mains Freq. Abnormal Mains frequency is out of limit range and results in rectifier shutdown.
Check the rectifier’s input voltage frequency
Rectifier Fault Rectifier detected faulty. Rectifier shuts down. Battery discharges.
Rectifier Overtemp. The temperature of heat sink is too high to keep the rectifier running.
The UPS can recover automatically. Check the environment and ventilation.
Batt. Contactor Fail Battery contactor or circuit breaker not responding to control signals.
Batt. Charger Fault The voltage of the battery charger is too high.
Control Power 1 Fail UPS operates but Redundant Control Power is not available.
Mains Phase Reversed AC Input phase sequence is reversed.
Rectifier Overcurrent Rectifier is overloaded.
Soft Start Fail Rectifier could not start due to low DC bus voltage
Bypass Unable to Trace
This alarm is triggered by an inverter software routine when the amplitude or frequency of
bypass voltage is beyond the normal range.
The amplitude threshold is fixed for positive and negative 10% rating.
This alarm automatically resets once the bypass voltage goes normal.
1. First verify that the bypass voltage and frequency displayed on the panel is within the
selected range. Note here the rated voltage and frequency are specified by “Output voltage
level” and “Output frequency level” respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external supply if it is found to be faulty.
Bypass Abnormal
This alarm is triggered by an inverter software routine when the amplitude or frequency of
bypass voltage exceeds the limit.
This alarm automatically resets once the bypass voltage goes normal.
First check if there are some relevant alarms such as “Bypass disconnect open”, “Bypass phase
reverse” and “Mains neutral lost”. If they appear, solve them first.
1. Then verify that the bypass voltage and frequency displayed on the panel is within the bypass
limit. Note here the rated voltage and frequency are specified by “Output voltage level” and
“Output frequency level” respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external bypass supply if it is found to be faulty. If
the utility is likely to trigger this alarm frequently, the bypass limit can be changed a little larger
through the configuration software according to the customer’s agreement.