Page 3 - TABLE OF CONTENTS
i TABLE OF CONTENTS I MPORTANT S AFETY I NSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 G LOSSARY OF S YMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.0 I NSTALLA...
Page 4 - ii; AINTENANCE; Intellislot
ii 3.4 External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.4.1 Matching Battery Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.4.2 Connecting the Batterie...
Page 5 - iii
iii 6.0 I NSTALLATION D RAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 7.0 O PERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 7.1 General Description . . . ....
Page 6 - iv; FIGURES
iv 9.9 Battery Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 9.9.1 Battery Undervoltage Pre-Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 9.9.2 Battery End-of-Di...
Page 8 - TABLES
vi TABLES Table 1 Input dry contacts at X3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 2 Maintenance bypass cabinet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 9 - SAVE THESE INSTRUCTIONS; before working with the UPS.; Retain this manual for use by installing personnel.; before handling the UPS. Test lift and balance the cabinet; WARNING; carried out only by trained personnel.; WARNING
1 I MPORTANT S AFETY I NSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation of your Liebert NX™ UPS and batteries.Read this manual thoroughly, paying special attention to the sections that apply to your installation, before worki...
Page 10 - Battery Cabinet Precautions; CAUTION
2 Battery Cabinet Precautions The following warning applies to all battery cabinets supplied with UPS systems. Additional warn- ings and cautions applicable to battery cabinets may be found in 3.0 - Battery Installation . ! CAUTION This equipment is fitted with RFI suppression filters.Ground leakage...
Page 12 - Installation; NSTALLATION; Liebert’s NX; External Inspections; carrier and your local Liebert representative immediately.; Internal Inspections; information contained in this section.; with large amounts of water.; NOTE; The NX UPS can be used in TN utility system.
Installation 4 1.0 I NSTALLATION Liebert’s NX ™ Uninterruptible Power Supply system provides continuous, high-quality AC power to your business-critical equipment, such as telecommunications and data processing equipment. The NX UPS supplies power that is free of the disturbances and variations in v...
Page 13 - Preliminary Checks; Battery Location
Installation 5 1.2.1 Storing for Delayed Installation If the equipment will not be installed immediately, it must be stored indoors where the humidity is no higher than 90% and the temperature is no higher than 104°F (40°C). The storage area must protect the NX from excessive moisture (see 10.2 - UP...
Page 14 - Considerations in Moving the NX; Final Position; Mechanical Considerations; Battery Cabinet Precautions on page 2
Installation 6 1.4.3 Special Considerations for 1+N Systems 1. Consider the grounding configuration of your system before finalizing module placement. For optimal ground performance, the NX modules should be close together. 2. For optimal load-sharing performance, the UPS output cables should be app...
Page 15 - Figure 1; System Composition; at the output of the UPS.
Installation 7 1.6.1 Clearances There are no ventilation grilles on the sides or rear of the UPS. The sides must be accessible during installation. After installation, the unit may be placed with the rear against a wall and optional cabi- nets on either side.To enable routine tightening of power ter...
Page 16 - the Maintenance Bypass Cabinet to be bolted to; left; side of the NX (see; the UPS and bypass
Installation 8 1.6.4 Optional Cabinets If your NX installation includes a Maintenance Bypass Cabinet, the NX must be positioned to allow the Maintenance Bypass Cabinet to be bolted to left side of the NX (see Figure 1 ). Cables from the Maintenance Bypass Cabinet must be brought through the bottom s...
Page 17 - Electrical Connections; LECTRICAL; Power Cabling; UPS input cables; Lug Size and Torque Requirements
Electrical Connections 9 2.0 E LECTRICAL C ONNECTIONS The UPS requires both power and control cabling once it has been mechanically installed. All control cables must run separate from power cables in metal conduits or metal ducts that are electrically bonded to the metalwork of the cabinets to whic...
Page 18 - Figure 2; input bus bars, then wire the Main input directly to CB1 (see; Figure 3; values in; another obstruction, such as a wall, is against the NX’s the left side.
Electrical Connections 10 2.1.2 UPS Input Configuration Figure 2 illustrates the NX in a split bypass (dual-input) configuration. In this configuration the Static Bypass and the Maintenance Bypass lines are supplied from a separate feed from the Main input. Both sources must be protected externally ...
Page 19 - below the switch, as shown in; . These busbars are accessible when the left side panel is; the UPS to the left of the bottom two battery shelves.; OUTPUT; Bussmann
Electrical Connections 11 2.1.4 Cable Connections The rectifier input, bypass and output are easily accessible from the left side of the unit for installa- tion. All require lug type terminations. They are connected to busbars on the left side of the NX and below the switch, as shown in Figure 3 . T...
Page 20 - Figure 5; tices, regulatory standards and the equipment to be installed.; UPS Rectifier and Bypass Input Supply; trical Characteristics; and; • Dual Input; System Output; must be separated at the input to the UPS.; or the risk of fire, should a ground fault occur.
Electrical Connections 12 2.1.5 Safety Ground The safety ground busbar is located below the neutral input and output busbars as shown in Figure 5 below. The safety ground cable must be connected to the ground busbar and bonded to each cabinet in the system.All cabinets and cable conduit should be gr...
Page 21 - Common Input Connections; Code and all applicable local codes.
Electrical Connections 13 2.1.7 Cabling Procedure Once the equipment has been positioned and secured for operation, and the battery and ground col- lars have been connected (see 2.1.4 - Cable Connections ), connect the power cables as described below. (Study the reference drawing in 6.0 - Installati...
Page 22 - Internal UPS Battery Connections; between the shelves and to the fuses.; Observe the battery cable polarity.; Be sure that the battery connector is made with the cor-; Control Cables; Figure 6; performed ONLY by Liebert Global Services at startup.
Electrical Connections 14 Internal UPS Battery Connections The UPS internal batteries will be connected at the factory, EXCEPT the Anderson connections between the shelves and to the fuses. Observe the battery cable polarity. Be sure that the battery connector is made with the cor- rect polarity. 11...
Page 23 - Dry Contacts; The UPS provides input dry contacts and output dry contacts.; ENV; NOTE: The black square
Electrical Connections 15 Figure 7 Auxiliary terminal block detail (Monitoring Board) 2.3 Dry Contacts The UPS provides input dry contacts and output dry contacts. 2.3.1 Input Dry Contacts There are several input dry contacts at the X3 slot. Figure 8 Input dry contacts Table 1 Input dry contacts at ...
Page 24 - Maintenance Bypass Cabinet Interface; J26 and J30 are the MBC interface.
Electrical Connections 16 2.3.2 Maintenance Bypass Cabinet Interface J26 and J30 are the MBC interface. 2.3.3 BCB Box Interface J10 is the BCB box interface. Figure 9 Jumper connection for BCB interface Table 2 Maintenance bypass cabinet interface Position Name Description J26.1 T_IT 1 Input transfo...
Page 25 - There are three output dry contact relays at the X1 slot (see; Table 4; , is the remote EPO input interface. It is active when shorted from; Table 5; Bypass feedback protection relay center; Emergency Power Off Low; AC
Electrical Connections 17 2.3.4 Output Dry Contacts There are three output dry contact relays at the X1 slot (see Figure 10 and Table 4 ). Figure 10 Output dry contacts and EPO wiring for firmware before M170 2.3.5 EPO Input—Optional Firmware Before M200 The UPS has an Emergency Power Off (EPO) func...
Page 26 - Firmware M200 or Later; , is the remote EPO input interface. The EPO has a NO/NC contact; Table 6; Position; EPO Activated when opened to J28.2; board and must remain installed if using NO contacts.
Electrical Connections 18 Firmware M200 or Later The UPS has an Emergency Power Off (EPO) function operated by a button on the control panel or by a remote contact provided by the user. The EPO button is under a hinged, clear plastic shield.The X2 slot, shown in Figure 11 , is the remote EPO input i...
Page 27 - Battery Installation; ATTERY; Introduction; bert representative for a list approve batteries.; Safety; only when the NX is connected to input power and turned On.
Battery Installation 19 3.0 B ATTERY I NSTALLATION 3.1 Introduction Liebert recommends that the batteries in external cabinets match the internal batteries in the NX in manufacturer and type.If using multiple sets of batteries connected in parallel to provide the required battery backup run times, f...
Page 28 - External Battery Cabinet Installation; Handling; for a list of batteries that are approved for use with this product.
Battery Installation 20 3.4 External Battery Cabinet Installation 3.4.1 Matching Battery Cabinets Two sizes of optional battery cabinets are available. Refer to Figures 13 and 14 . The same model bat- tery cabinet may be installed in parallel in multiple cabinet strings for additional capacity. Batt...
Page 30 - side and rear service clearance requirements. Refer to
Battery Installation 22 3.4.3 Installation Considerations Position —Liebert battery cabinets come in versions specific to either the left or right side of the UPS. Control wires and power cables are cut to different lengths for the different versions. If the sys- tem includes a matching maintenance ...
Page 31 - Figure 16 Battery tray and supports
Battery Installation 23 Figure 15 Internal cable wiring from battery cabinet to Liebert NX Figure 16 Battery tray and supports Power cables from batteries Power cables from output power switch Power cables exit battery cabinet, enter Liebert NX Power cables run across top of Liebert NX Power cables ...
Page 32 - Connecting the Battery Cabinet to the UPS; . Be sure that the battery connections are made with the right; Non-Standard Batteries; Electrical Code and all applicable local codes.
Battery Installation 24 3.4.4 Connecting the Battery Cabinet to the UPS After the battery cabinet equipment has been positioned and secured for operation and the batteries have been connected, connect the power cables as described below. (See Figure 36 .) 1. Verify that all incoming high and low vol...
Page 33 - Maintenance Bypass Cabinet; mode. The mode is selected using the Bypass Switch.; Bypass Switch; protected by the UPS.
Maintenance Bypass Cabinet 25 4.0 M AINTENANCE B YPASS C ABINET The Maintenance Bypass Cabinet is designed to operate in UPS mode, bypass mode and maintenance mode. The mode is selected using the Bypass Switch. Figure 17 Single UPS with external Maintenance Bypass Cabinet—typical configuration 4.1 B...
Page 34 - Bypass Mode; load is NOT protected by the UPS.; Maintenance Mode; Removing the Cover Plates; ). Remove these and keep the screws and plates for reinstallation.; Figure 18 Maintenance Bypass Cabinet—access plate removed; Extract screws
Maintenance Bypass Cabinet 26 4.3 Bypass Mode When the Maintenance Bypass Cabinet is in the Bypass mode, it provides an alternate path for power to the connected equipment. Should the UPS need to be taken out of service for limited maintenance or repair, manual activation of the bypass will cause an...
Page 35 - Refer to; Figure 19 Maintenance Bypass Cabinet wiring access panel
Maintenance Bypass Cabinet 27 4.6.2 Power Cable Installation Refer to Tables 35 , 36 and 38 when selecting cables. 4.6.3 Input/Output Wiring Follow the steps below to connect the input wiring: 1. Locate the input wiring access (top or bottom access), remove the conduit landing plate and punch the ap...
Page 36 - Figure 20 Maintenance bypass control wire location; the load when switching between bypass cabinet and UPS.; Terminal
Maintenance Bypass Cabinet 28 7. Connect the system input cables between the Maintenance Bypass Cabinet 'UPS Input' Busbars (A-B-C N terminals) and UPS input busbars (A-B-C N terminals) and tighten the connections to 44 lb-in. (5 N-m) (M6 bolt). 8. Connect the system outnput cables between the Maint...
Page 37 - Bolting Cabinets Together; Line up cabinets so that mounting holes are aligned.
Maintenance Bypass Cabinet 29 4.7 Bolting Cabinets Together 1. Line up cabinets so that mounting holes are aligned. 2. Using supplied hardware, bolt the cabinets together. The bolts may be inserted from either the UPS side or from the MBS side, whichever is more convenient. NOTE UPS wiring must be c...
Page 38 - Option Installations; PTION; Load Bus Synchronization; The DBS operates under the following conditions:; Figure 21 Load Bus Synchronization cable connection; LCD will display “LBS active.”
Option Installations 30 5.0 O PTION I NSTALLATIONS 5.1 Load Bus Synchronization The Load Bus Synchronizer (LBS) keeps the output of two independent UPS systems or parallel UPS systems in synchronization even when the systems are operating in different modes and even when either or both systems are o...
Page 39 - Configuring Parallel System Operation
Option Installations 31 5.2 Configuring Parallel System Operation 5.2.1 General The NX uses intelligent and reliable decentralized technology to achieve parallel operation of two or more modules of the same rating.The 1+N system is used to: • Increase the reliability of the system to ensure adequate...
Page 40 - the overload is cleared.; Figure 22 1+N system block diagram
Option Installations 32 5.2.2 Features of Parallel System • The hardware and firmware for parallel UPS module operation is standard in the NX, and the configuration can be set up by changing the settings in configuration software. • It is easy to install the parallel cables in a ring, providing high...
Page 41 - Redundancy Paralleling; Normal Mode Operation; Installing Parallel System
Option Installations 33 5.2.3 Operating Principles Redundancy Paralleling The 1+N parallel redundant system can noticeably improve system reliability. In normal condition, none of the UPS modules work at full load. That means that even if the load is increased, the system will not transfer to bypass...
Page 42 - Parallel System Control Cables; UPS; Interconnecting
Option Installations 34 5.3.5 Power Cables Wiring of power cables is similar to that of single-module system (See 2.1 - Power Cabling ). The bypass sources of all modules should be the same, and the outputs should be connected altogether cor- rectly.Power cables will be supplied by customer. Power c...
Page 43 - Input Distribution
Option Installations 35 Figure 24 Auxiliary dry contact cables for output breaker in multi-module system Figure 25 Dry contacts, multiple UPS modules with distribution panel ! CAUTION The auxiliary control wire must be installed to ensure proper operation of the system. NOTE For startup procedure, s...
Page 44 - Battery Circuit Breaker Box; The circuit breaker has the following features:; Normally
Option Installations 36 5.3.7 Emergency Power Off (EPO) The external emergency stop facility is identical to that described for the single-unit installation— that an individual emergency stop button is provided for each unit. Figure 26 Connecting EPO push button 5.4 Battery Circuit Breaker Box The b...
Page 45 - Figure 27 Battery circuit breaker box connections; Midpoint Busbar Detail
Option Installations 37 Figure 27 Battery circuit breaker box connections NOTE 1. The signal cables in this figure must be shielded and double-insulated.2. Connect the Pes (Protection Earth) of the UPS cabinet and BCB box to the same point. DPN U3813078 Rev. N (7.9mm) (Typ. 4 places) .31" dia. ....
Page 46 - percent. “ENV-T” is used for environment temperature detecting.
Option Installations 38 5.5 Battery Start With this option, the NX UPS can be started with power supplied only by the batteries (at charged condition). This type of start, in the absence of utility power, allows independent utilization of battery power and provides for higher availability in some ci...
Page 47 - OC Web Card—SNMP/HTTP Network Interface Card; Table 8
Option Installations 39 5.10 OC Web Card—SNMP/HTTP Network Interface Card This network interface card provides all real-time data and status information as SNMPv1 traps for connection to a 10/100-baseT Ethernet connection. The same card also will transmit the same status information and all measured...
Page 48 - appropriate Comm Channel.; Scroll down to view them on the screen.
Option Installations 40 5.10.1 Configuring Baud Rates The default baud rate for Intellislots is 9600. To communicate with the OCWEB-LB, Modbus/Jbus, or the MultiLink cards, the baud rate must be set to 2400.To change the baud rate (refer to Table 8 ): 1. Use the Navigation keys directly below the LC...
Page 49 - Figure 28 OC Web card display
Option Installations 41 Figure 28 OC Web card display
Page 50 - On UPS
Option Installations 42 5.11 Relay Card The relay card provides voltage-free contact closures for remote monitoring of alarm conditions.Delivering On Battery, On Bypass, Low Battery, Summary Alarm, UPS Fault and On UPS sig- nals, the easy-to-install card integrates with AS/400 computers (additional ...
Page 51 - Figure 29 MultiPort 4 card pin assignment; CPU; Pin
Option Installations 43 5.12 MultiPort 4 Card The MultiPort 4 card provides four sets of voltage-free contact closures for remote monitoring of alarm conditions UPS operation On Battery and battery low condition. A typical applicaton is to allow a maximum of four computer systems to simultaneously m...
Page 52 - Installation Drawings; Figure 30 Dimensional view- front and left side views; weight of the unit must be supported under all casters.
Installation Drawings 44 6.0 I NSTALLATION D RAWINGS The diagrams in this section illustrate the key mechanical and electrical characteristics of the NX UPS System cabinets. Figure 30 Dimensional view- front and left side views 1. All dimensions are in millimeters.2. A minimum of 24 inches clearance...
Page 53 - Figure 31 Dimensions continued—top and bottom views; Front View
Installation Drawings 45 Figure 31 Dimensions continued—top and bottom views Figure 32 Main components—typical unit Rear stabiliz- ing foot Air Exhaust Power Cable Entry Area Top and Bottom Air 10mm dia. threaded mounting holes 4 (typ). See Notes 8 and 9 above. TOP VIEW BOTTOM VIEW MonitorBoard(U2) ...
Page 54 - Figure 33 Cable connections; accommodate conduit size and replace.
Installation Drawings 46 Figure 33 Cable connections NOTES 1. All dimensions are millimeters.2. Top and bottom cable entry available through removable access plates. Remove, punch to accommodate conduit size and replace. 3. Control wiring and power wiring must be run in separate conduit. Output and ...
Page 55 - Figure 34 Location of internal batteries; Battery
Installation Drawings 47 Figure 34 Location of internal batteries Battery 417mm 687mm 186mm
Page 56 - Figure 35 Battery connections; TOP LAYER; DYNASTY BATTERY
Installation Drawings 48 Figure 35 Battery connections + - + - + - + - + - + - + - - + + - + - + - + - + - + - + - - + + - + - + - + - + - + - + - - + - N + W501 3pcs W500 18pcs W510 to W511 W502 to W503 W503 to W502 W504 to W505 W511 to W510 W507 to W506 W509 to W508 W 506 t o W 5 07 TOP LAYER MIDD...
Page 57 - Figure 36 Battery cabinet interconnection; UPS battery terminal block; their final installed location.
Installation Drawings 49 Figure 36 Battery cabinet interconnection Table 11 Liebert -supplied interconnect wiring Run From To Conductors A UPS battery terminal block External 27" or 59" battery cabinet Positive, midpoint, negative B Battery cabinet terminal block UPS monitor board Battery br...
Page 58 - Figure 37 Maintenance Bypass interconnection; final installed location.
Installation Drawings 50 Figure 37 Maintenance Bypass interconnection Table 12 Liebert-supplied interconnect wiring for Maintenance Bypass Cabinet Run From To Conductors A Utility AC source Maintenance Ph A, B, C bypass/ transformer cabinet B Utility AC source Maintenance Neutral bypass/ transformer...
Page 59 - Figure 38 NX 1+1 parallel cabinet interconnections; Run; +1 Parallel Cabinet
Installation Drawings 51 Figure 38 NX 1+1 parallel cabinet interconnections Table 13 Liebert-supplied interconnect wiring Run From To Conductors Cabinet Type A Utility AC Source Paralleling Cabinet PH A, B, C - Bypass BR0, CR1, DR1 B Utility AC Source Paralleling Cabinet Neutral - Bypass BR0, CR1, D...
Page 60 - Figure 39 Lineup detail—SlimLine distribution cabinet to NX
Installation Drawings 52 Figure 39 Lineup detail—SlimLine distribution cabinet to NX Table 14 Liebert-supplied interconnect wiring—SlimLine distribution cabinet to NX Run From To Conductors A Distribution Cabinet Load AC Connection Isolated Ground B Distribution Cabinet Load AC Connection Neutral Di...
Page 61 - Figure 40 Lineup detail—1+N Type A connection to NX; RUN FROM; + N Parallel Cabinet
Installation Drawings 53 Figure 40 Lineup detail—1+N Type A connection to NX Table 15 Interconnect wiring—1+N Type A connection to NX RUN FROM TO CONDUCTORS A1-A4 Utility AC Source UPS #1-UPS #4 Module AC Input Ph A, B, C - UPS Input B1-B4 Utility AC Source UPS #1-UPS #4 Module AC Input Neutral - UP...
Page 62 - Figure 41 Lineup detail—1+N Type B1 connection to NX; setting the cabinets in their installed location.
Installation Drawings 54 Figure 41 Lineup detail—1+N Type B1 connection to NX Table 16 Interconnect wiring—1+N Type B1 connection to NX Run From To Conductors A Utility AC Source Paralleling Cabinet Ph A, B, C - System Input B Utility AC Source Paralleling Cabinet Ground - System Input C Utility AC ...
Page 63 - Figure 42 Lineup detail—1+N Type C connection to NX
Installation Drawings 55 Figure 42 Lineup detail—1+N Type C connection to NX Table 17 Interconnect wiring—1+N Type C connection to NX Run From To Conductors A Utility AC Source Paralleling Cabinet Ph A, B, C-system Input B Utility AC Source Paralleling Cabinet Ground - System Input C1-C4 Paralleling...
Page 65 - Front of Units
Installation Drawings 57 Figure 44 Suggested placement, multiple NX units with auxiliary cabinets Battery Cabinet Battery Cabinet Liebert NX UPS Battery Cabinet Multi-Module Paralleling Cabinet Liebert NX UPS Liebert NX UPS Front of Units Liebert NX UPS Liebert NX UPS Liebert NX UPS Multi-Module Par...
Page 66 - Operation; PERATION; General Description; service to the maintenance bypass.; Figure 45 Single module block diagram (dual input configuration); Bypass Supplies; The circuit block labeled “Static Switch” and “Contactor” in; Operating Modes; equipment is not protected from power failures or surges and sags.
Operation 58 7.0 O PERATION 7.1 General Description The standard NX consists of the UPS and internal batteries in a compact, single cabinet.As shown in Figure 45 , the AC utility source is input at CB1 and the rectifier converts the AC utility into DC power. The inverter converts that DC power from ...
Page 67 - the rectifier powering the critical load.; altered by modifying the Output transfer interrupt time setting.; maintenance mode, the input and output busbars remain energized.
Operation 59 Normal Mode Operating in normal mode, the NX’s rectifier derives power from a utility AC source and supplies reg- ulated DC power to the inverter, which regenerates precise AC power to supply the connected equip- ment. The rectifier also uses the utility source power to charge the batte...
Page 68 - Operator Control and Display Panel; PERATOR; Operator Control Panel; Mimic Display; Rectifier indicator
Operator Control and Display Panel 60 8.0 O PERATOR C ONTROL AND D ISPLAY P ANEL 8.1 Operator Control Panel The control panel and LCD on the front of the Liebert NX lets the operator: • turn the UPS on or off• transfer into the various operating modes• silence alarms• check the status of the UPS and...
Page 69 - Mimic Display Indicators; depicting the various paths of UPS power, as shown in; Figure 48 Mimic display indicators location; provides a guide to inter-; Mimic display status indicators
Operator Control and Display Panel 61 8.2 Mimic Display Indicators The Mimic display on the front panel consists of six indicators arranged in a single-line diagram depicting the various paths of UPS power, as shown in Figure 48 . Figure 48 Mimic display indicators location The current operational s...
Page 70 - Control Buttons; Alarm Buzzer; Single beep; Button; Alarm
Operator Control and Display Panel 62 8.3 Control Buttons The Control Buttons on the front panel may be used to shut down the UPS completely, turn the inverter on or off, restart the UPS after a fault and silence the alarm, as shown in Figure 49 . The function of each button is described in Table 19...
Page 71 - LCD Overview; Figure 51 Sections of the LCD
Operator Control and Display Panel 63 8.5 LCD Overview The LCD on the front panel has five main sections, as shown in Figure 51 . Press the F1 key below the LCD to scroll through these sections. • UPS system information - view UPS name and model, date and time, overall status (see Table 21 ). • LCD ...
Page 72 - Navigation Keys; UPS System Information; Icons for navigation keys; ESC
Operator Control and Display Panel 64 8.6 Navigation Keys The navigation keys on the front panel—F1 through F4 and Help—are used to access the LCD to view the current status and other information about the NX.Navigation key icons on the LCD appear above each key to indicate its operation (see Table ...
Page 73 - LCD Menus and Data Items; menu choices are listed below and described in detail in; Figure 52 Menu tree
Operator Control and Display Panel 65 8.8 LCD Menus and Data Items The LCD menus provide access to the following categories of information and settings for the UPS. Selecting a menu changes the information displayed in the UPS data items portion of the LCD. The menu choices are listed below and desc...
Page 74 - Language Selection; Language; Current Date and Time; Settings
Operator Control and Display Panel 66 8.9 Language Selection The LCD menus and data display are available in 12 languages (Chinese, Dutch, English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Spanish and Swedish). To select a differ- ent language: • From the main menu, press the ...
Page 75 - Descriptions of UPS menus and data window items
Operator Control and Display Panel 67 Table 22 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 ...
Page 76 - Descriptions of UPS menus and data window items (continued)
Operator Control and Display Panel 68 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 Commu...
Page 77 - UPS Status Messages; current status window of the LCD; Current status
Operator Control and Display Panel 69 8.11 UPS Status Messages The NX displays status changes as they occur in the current status window of the LCD , then stores that data in the history log , as shown in Figure 53 . • Current Status Window: The status messages are displayed chronologically and incl...
Page 78 - Types of LCD Screens; Figure 54 Opening display
Operator Control and Display Panel 70 8.12 Types of LCD Screens This section provides a quick guide to the main types of LCD screens. 8.12.1 Opening Display As the UPS begins powering up, the opening display appears, as shown in Figure 54 . Figure 54 Opening display 8.12.2 Default Screen After the U...
Page 79 - Press the HELP key below the LCD to display the Help window shown in; Figure 56 Help screen; when any key is pressed.; Figure 57 Screen saver window
Operator Control and Display Panel 71 8.12.3 UPS Help Screen Press the HELP key below the LCD to display the Help window shown in Figure 56 . (Press the HELP key again to exit the Help window.) Figure 56 Help screen 8.12.4 Screen Saver Window If there has been no interaction with the NX’s LCD for 2 ...
Page 80 - From Bypass to Inverter Mode With Power Interruption
Operator Control and Display Panel 72 8.13 Pop-Up Windows Pop-up prompt windows appear when the user must confirm a choice or perform an operation. This section describes the pop-up windows. 8.13.1 From Bypass to Inverter Mode With Power Interruption If the bypass voltage or frequency exceeds the sy...
Page 81 - Operating Instructions; PERATING; NX Operating Modes; The NX can operate in any of four modes, as shown in; UPS operating modes; commissioned by a Liebert factory-trained service engineer.
Operating Instructions 73 9.0 O PERATING I NSTRUCTIONS 9.1 NX Operating Modes The NX can operate in any of four modes, as shown in Table 23 . This section provides instructions on switching between modes, resetting the UPS, switching the inverter On and Off and performing other operations. Table 23 ...
Page 82 - Figure 58 Power switches - 10kVA NX; NORMAL; three seconds before turning it to the next position.
Operating Instructions 74 9.1.1 Power Switches The UPS can be isolated by means of power switches, mounted inside the cabinet and accessible after opening the front door.The location of the UPS power switches is shown in Figure 58 . Figure 58 Power switches - 10kVA NX The UPS unit power switches are...
Page 83 - UPS Start Up; Indicator
Operating Instructions 75 9.2 UPS Start Up The NX must be fully installed and commissioned before start up, and external power isolators must be closed. Once those general conditions are met, the UPS may be started. 9.2.1 Start-Up Procedure To start the UPS from a fully powered-down condition:1. Ope...
Page 84 - Verify Switching Between Operation Modes; after 10 seconds and resume feeding power to the inverter.; Switch from Normal Mode to Bypass Mode; • Press INVERTER OFF button to switch to bypass mode.; Switch from Bypass Mode to Normal Mode; switch to normal mode.; through the inverter.
Operating Instructions 76 5. Turn the rotary switch to NORMAL, then press the INVERTER ON control button for 2 seconds. The inverter will start and the inverter indicator will flash green. After the inverter is ready, the UPS transfers from bypass to inverter, the bypass indicator turns off and the ...
Page 85 - Switching the UPS from Normal to Maintenance Bypass; mal to Maintenance Bypass; displayed until the appropriate condition is rectified.
Operating Instructions 77 9.3 Switching the UPS from Normal to Maintenance Bypass Follow the procedure below to transfer the load from the inverter output to the Maintenance Bypass line of the UPS. This procedure assumes that UPS is operating normally.1. Press the INVERTER OFF button on the right si...
Page 86 - Powering Down the UPS and Maintaining Power to Load; Steps 1
Operating Instructions 78 9.5 Powering Down the UPS and Maintaining Power to Load If the UPS needs to be shut down completely while maintaining power to the load, follow these steps:1. Perform Steps 1 through 5 in 9.3 - Switching the UPS from Normal to Maintenance Bypass . 2. Close the external main...
Page 87 - Emergency Shutdown With EPO; for equipment shutdown if input power fails again.; minutes after the disappearance of overtemperature signals.; the output terminals of the UPS.
Operating Instructions 79 9.6 Emergency Shutdown With EPO This circuit has been designed to switch off the UPS in emergency conditions (i.e., fire, flood, etc.). The system will turn off the rectifier, inverter and stop powering the load immediately (including the inverter and bypass), and the batte...
Page 88 - Battery Protection; Output becomes inhibited because of Isolation Status.; Hazardous Battery Voltage; dedicated battery room that may be locked.
Operating Instructions 80 9.9 Battery Protection 9.9.1 Battery Undervoltage Pre-Warning Before the end of discharge, the NX displays a battery undervoltage pre-warning. After this pre-warn- ing, the battery has the capacity for 5 minutes discharging with full load (default time). The NX can be user-...
Page 89 - Inserting One Module into a Multi-Module System; charger starts operation.; LED Function
Operating Instructions 81 9.11 Inserting One Module into a Multi-Module System This procedure outlines how to integrate a UPS module that has been previously isolated from other modules of a group of paralleled UPS modules. It is assumed that the installation is complete, the sys- tem has been commi...
Page 90 - Shutting Down a Multi-Module System With System Bypass Switch; Steps 2; damage. This procedure will shut off power to the load.; each unit with as little delay as possible.; The following step will shut off power to the connected load.
Operating Instructions 82 9.12 Shutting Down a Multi-Module System Without System Bypass Switch 1. Open the UPS door to gain access to the main power switches, SW1 and CB1of a UPS in the system. 2. Turn the rotary switch to BYPASS position. Rotating any UPS Rotary Switch (SW1) to the Bypass position...
Page 91 - Commissioning a Parallel System; down to connect the load to the maintenance bypass supply.
Operating Instructions 83 9.14 Commissioning a Parallel System Check the input and output wiring of each UPS module. Ensure that the phase rotation sequence of the main inputs and the bypass inputs and outputs of each UPS module are the same. Ensure the parallel cables are connected firmly.It is ass...
Page 92 - and after the external power switches have been closed. See; SW; Rotary; Ch
Operating Instructions 84 The procedure can be performed only after the installation has been completed (which includes the maintenance bypass cabinet), after the system has been placed in operation by authorized personnel and after the external power switches have been closed. See Figure 60 for mor...
Page 93 - Parallel System Start Up; Start each UPS normally as described in; Replacing Dust Filters; dust filter in place, as shown in; Figure 61 Dust filter replacement; Sems screw
Operating Instructions 85 9.16 Parallel System Start Up 1. Start each UPS normally as described in 9.2 - UPS Start Up 2. Turn on the inverter of each UPS module one at a time.3. Apply the load after the last UPS module transfers to inverter. The total load can be determined through the LCD of either...
Page 94 - UPS Specifications; PECIFICATIONS; Conformity and Standards; The UPS has been designed to conform to the following standards:; UPS Environmental; radation in electrical operating characteristics:; UPS Mechanical Characteristics; Environmental characteristics; Rated Power; Mechanical characteristics; Parameter
UPS Specifications 86 10.0 UPS S PECIFICATIONS These specifications describe requirements for the Liebert NX UPS. 10.1 Conformity and Standards The UPS has been designed to conform to the following standards: • IEEC1000-4-5• ASME• CSA 22.2, No. 107.1• FCC Part 15, Class A• ISO 9001• National Electri...
Page 95 - UPS Electrical Characteristics; UPS terminal
UPS Specifications 87 10.4 UPS Electrical Characteristics Table 27 UPS terminal Input (for single-input unit) Unit Rating Nominal Input Current Maximum Input Current OCP Current OCP Device Rating Bolt Size Maximum Recommended Lug Lug T&B One Hole 54000 Lug T&B One Hole REDDY 10 28 35 42 45 6...
Page 96 - are the battery makers and the models they supply.; Approved batteries; Battery Manufacturer; Rectifier input power; DC intermediate circuit
UPS Specifications 88 10.4.1 Battery Manufacturers and Models Either of two manufacturers’ batteries will be installed in the NX 10-30 kVA 208V as shipped. Below are the battery makers and the models they supply. 10.4.2 Input Rectifier 10.4.3 DC Intermediate Circuit Table 28 Approved batteries Batte...
Page 97 - Inverter output; Bypass input
UPS Specifications 89 10.4.4 Inverter Output 10.4.5 Bypass Input Table 31 Inverter output Rated Power 10kVA 15kVA 20kVA 30kVA Rated voltage, VAC 120/208 Supply 3-phase, 4-wire plus ground Frequency, Hz 50 / 60 Rated Power, kW 8 12 16 24 Three -phase transient overload, min. load 10 minutes - 105-125...
Page 98 - Specifications and Technical Data; Lug Size and Torque Requirements; Torque specifications
Specifications and Technical Data 90 11.0 S PECIFICATIONS AND T ECHNICAL D ATA 11.1 Lug Size and Torque Requirements Use commercially available solderless lugs for the wire size required for your application. Refer to Table 33 . Connect wire to the lug using tools and procedures specified by the lug...
Page 99 - Maintenance bypass cabinet electrical data (single input)
Specifications and Technical Data 91 Table 35 Maintenance bypass cabinet electrical data (single input) kVA Type Maintenance Bypass I/P Voltage (VAC) Bypass Cabinet Max Input Current Cabinet Input OCP CB Size (A) O/P Voltage (VAC) Nominal O/P Current Rating (A) Output OCP CB Size (A) 30 A, J 208 104...
Page 100 - Maintenance bypass cabinet electrical data (dual input)
Specifications and Technical Data 92 10 A, J 208 35 50 208 28 40 10 B, K 480 16 20 208 28 40 10 B, K 600 12 15 208 28 40 10 B, K 220 34 50 208 28 40 10 C, L 480 16 20 480 12 15 10 C, L 600 13 20 600 10 15 10 C, L 220 35 50 220 26 40 10 D, M 480 16 20 208 28 40 10 D, M 600 13 15 208 28 40 10 D, M 208...
Page 101 - Multi-module bypass cabinet electrical data
Specifications and Technical Data 93 Table 37 Multi-module bypass cabinet electrical data System Size Type kVA System I/P Voltage (VAC) System Max Input Current System Input OCP CB Size (A) O/P Voltage (VAC) Nominal O/P Current Rating (A) Output OCP CB Size (A) 1+1 A00, BR0 30 208 104 125 208 83 125...
Page 102 - Maintenance bypass cabinet lug sizes
Specifications and Technical Data 94 Table 38 Maintenance bypass cabinet lug sizes Input Unit Rating Nominal System Input Voltage Bolt Size Maximum Recommended Lug Lug T&B One Hole 54000 Lug T&B One Hole REDDY 30 600 6M (1/4") 54105 62204 30 480 6M (1/4") 54106 62204 30 240 6M (1/4&#...
Page 103 - Battery cabinet physical characteristics; Short Narrow; Maintenance Bypass Cabinet weights; inch; Multi-module paralleling cabinet dimensions; All other types
Specifications and Technical Data 95 Table 39 Battery cabinet physical characteristics Battery Cabinet Type Dimensions WxDxH in. (mm) Net Weight Without Batteries, lb. (kg) Short Narrow 27.2x31.4x63 (690x825x1600) 551 (250) Short Wide 58.5x31.4x63 (1488x825x1600) 889 (400) Table 40 Maintenance Bypas...
Page 104 - Cable Lengths: Floor to Connection Point Inside UPS; To help calculate the total cable length required, refer to; Distance to connection points on the NX UPS
Specifications and Technical Data 96 11.2 Cable Lengths: Floor to Connection Point Inside UPS To help calculate the total cable length required, refer to Table 43 for the distance from the floor to selected connection points inside the NX. Determine the cable length required to reach the NX, then ad...
Page 105 - UPS Status Messages; PPENDIX; current status area and the history log, see; UPS status messages; Event Message
UPS Status Messages 97 A PPENDIX A - UPS S TATUS M ESSAGES Table 44 shows all event messages as they appear in the current status area of the LCD or the his- tory log, along with a description and recommended actions, if any. For further information on the current status area and the history log, se...
Page 112 - AC Power
EmersonNetworkPower.com Ensuring The High Availability0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-criticalcontinuity, ensures network resiliency and adaptability througha family of technologies—including Liebert power and coolingtechnologi...
Emerson LD195EM8
User Manual
Emerson EWR20V4
User Manual
Emerson SLC195EM8
User Manual
Emerson CR202EM9
User Manual
Emerson HD14070
User Manual
Emerson RLC320EM9
User Manual
Emerson PD6922
User Manual
Emerson EPT427D
User Manual
Emerson 400 VMC
User Manual
Emerson CF960CK
User Manual
Emerson MICRO MOTION 2700
Installation Manual
Emerson CF787AP00
User Manual