Page 2 - Product Warranty Registration; To register for warranty protection, visit the; Service and Support; section of our Web site at:; Product Registration; and fill out the form.
C ONTACTING E MERSON N ETWORK P OWER FOR S UPPORT To contact Emerson Network Power Liebert Services for information or repair service in the United States, call 800-543-2378. Liebert Services offers a complete range of star-up services, repair services, preventive maintenance plans and service contr...
Page 3 - TABLE OF CONTENTS; MPORTANT
i TABLE OF CONTENTS I MPORTANT S AFETY I NSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 I NTRODUCTION . . . . ...
Page 4 - ii; PTIONS
ii 2.6 Automatic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.6.1 Overloads (Without Transfer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.6.2 Automatic Trans...
Page 5 - iii; FIGURES
iii FIGURES Figure 1 Typical single module UPS system one-line diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 2 Main component locations-225 to 300kVA Liebert NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3 Main components...
Page 6 - iv
Page 7 - SAVE THESE INSTRUCTIONS; your installation, before working with the UPS.; Retain this manual for use by installing; and determine unit weight before handling each; WARNING
Important Safety Instructions 1 Liebert ® NX ™ 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. Read this manual thoroughly, paying special attention to the sections that apply to ...
Page 8 - Battery Cabinet Precautions; Important Safety; and; NOTICE; recommendations for handling and care.; NOTE
Important Safety Instructions Liebert ® NX ™ 2 Battery Cabinet Precautions The following warning applies to all battery cabinets supplied with UPS systems. Additional warnings and cautions applicable to battery cabinets may be found in Important Safety Instructions on page 1 and 4.4 - Battery Mainte...
Page 9 - NTRODUCTION; General Description; service to the optional maintenance bypass.; Figure 1; DC; BFB; UPS Module; maximum discharge current .; Critical
Introduction 3 Liebert ® NX ™ 1.0 I NTRODUCTION 1.1 General Description The Liebert NX UPS provides continuous, high-quality AC power to your business-critical equipment, such as telecommunications and data processing equipment. The Liebert NX UPS supplies power that is free of the disturbances and ...
Page 10 - Modes of Operation; the following occurs:; Operation; interrupt time setting.
Introduction Liebert ® NX ™ 4 1.2 Modes of Operation 1.2.1 Normal Mode Operating in normal mode, the Liebert NX’s rectifier derives power from a utility AC source and supplies regulated DC power to the inverter, which regenerates precise AC power to supply the connected equipment. The rectifier also...
Page 11 - Options
Introduction 5 Liebert ® NX ™ 1.3 Options A number of options are available from Emerson ® for your UPS system. Some options are not available for all ratings. Described below are the most frequently provided options. Other options are available. Contact your Emerson sales representative for more in...
Page 12 - PERATION; Features; minutes, the display will revert to the basic mimic screen.; Figure 2; FRONT DOORS REMOVED
Operation Liebert ® NX ™ 6 2.0 O PERATION The Liebert NX UPS is equipped with a microprocessor-based display touchscreen designed for convenient and reliable operation. The display is driven by menu-prompted software. 2.1 Features The Liebert NX interface display enables the operator to perform such...
Page 13 - Figure 3; HMI Screen
Operation 7 Liebert ® NX ™ Figure 3 Main components, 400-600kVA Liebert NX FRONT DOORS REMOVED DOORS AND INNER SKINS REMOVED HMI Screen Main Input CircuitBreaker (CB1) Optional Backfeed CircuitBreaker (BFB) ExternalCommunicationPanel InputGround Busbar BatteryBusbars (+ / -) Bypass BusbarsØ A,B,C Ou...
Page 14 - Bypass Input: voltage and frequency readings
Operation Liebert ® NX ™ 8 Figure 4 Main display screen, typical Figure 5 Normal Mode Figure 6 Utility fail 9 1 5 3 2 8 4 7 6 1. Bypass Input: voltage and frequency readings 2. Line power Input: voltage, current and fre- quency readings 3. Output: voltage, current and frequency read- ings 4. Battery...
Page 15 - Figure 7; Touchscreen Navigation; System Status
Operation 9 Liebert ® NX ™ Figure 7 Load on bypass 2.2 Touchscreen Navigation Several menu items can be accessed from the main display screen (see Figure 9 ). These menu items are detailed in subsequent sections. 2.2.1 Main Display Screen This is the default screen. It displays the following informa...
Page 16 - This menu item displays a list of current Fault Warnings and Info.; Figure 8; Rectifier
Operation Liebert ® NX ™ 10 2.2.2 Status This menu item displays a list of current Fault Warnings and Info. Figure 8 Status 2.2.3 Events Log Menu This menu item displays the list of Events that occurred recently while the UPS was in operation. 2.2.4 Measures Menu This menu item displays the full set...
Page 17 - Figure 9; battery test.; Battery Status; The following commands can be set using this page
Operation 11 Liebert ® NX ™ Figure 9 Measures menus 2.2.5 Battery Menu This menu item displays the battery status/parameters such as temperature, cell voltage, capacity and run time, as well as commands that enable the user to the user to configure and execute the battery test. Battery Status • Batt...
Page 18 - Battery Measures; This section monitors variables applicable to the battery.; Figure 10 Battery parameters
Operation Liebert ® NX ™ 12 Battery Measures This section monitors variables applicable to the battery. Figure 10 Battery parameters
Page 19 - Figure 11 Life menu
Operation 13 Liebert ® NX ™ 2.2.6 Life Menu This menu displays the information about the status of Liebert LIFE.net connections, status of calls and types of calls and allows certain specific commands to be executed. This button is not active if the LIFE.net option is not available on UPS. Figure 11...
Page 20 - This menu item displays the LCD settings and selected language.; Figure 12 Settings Menu; Animated One Line Mimic; Green; Number, FW details and IP and MAC addresses.; CB1 is installed, it is assumed to be closed.
Operation Liebert ® NX ™ 14 2.2.7 Settings Menu This menu item displays the LCD settings and selected language. Figure 12 Settings Menu 2.3 Animated One Line Mimic This displays all the functional blocks in the UPS. Touch any icon to obtain detailed information about the corresponding functional blo...
Page 21 - . The UPS system could be in this mode of operation during; utility failure and fluctuations.; Figure 13 Load on bypass
Operation 15 Liebert ® NX ™ 2.4.1 Load on Bypass In this operating mode, the connected loads are supplied from line power via the Static Bypass Switch. The Static Bypass Switch is used to provide power to the loads. If an overload or short-circuit on UPS output occurs, the Static Bypass Switch is au...
Page 22 - Input Power Failure—Load on DC Source; Figure 16 Input power fail, load on DC source; Figure 17 Load on UPS, DC source not available
Operation Liebert ® NX ™ 16 2.4.2 Input Power Failure—Load on DC Source If the utility AC power source fails or is outside the acceptable range, the DC source becomes the power source for the UPS module inverters. The UPS continues to supply power to the critical load and also to the UPS controls.Us...
Page 23 - Figure 18 Remote Emergency Power Off; Manual Operations—All Systems; bypass and transfers from maintenance bypass to internal bypass.; been performed by Emerson Network Power
Operation 17 Liebert ® NX ™ 2.4.4 Remote Emergency Power Off The Remote Emergency Power Off control is a user-provided switch located remotely from the UPS system. It usually is installed in the same room as the critical load equipment. This mode can also be initiated by an automatic contact closure...
Page 24 - Figures 2; turn Off control power (see; connections must be secure.
Operation Liebert ® NX ™ 18 2.5.1 Startup—Single Module System This section lists typical step-by-step instructions. If the installation includes a Maintenance Bypass, power may already be supplied to the critical load equipment through the Maintenance Bypass. If there is no power to the critical lo...
Page 25 - see; Steps 4
Operation 19 Liebert ® NX ™ g. Close all DC breakers. NOTICE Risk of improper operation. Can cause equipment damage.Do not close the battery breaker until the DC bus is above 540VDC. h. Press the “Start Inverter” button on touchscreen. Press “Confirm” on the popup window and the load will be energiz...
Page 26 - initiate automatic load transfers and retransfers. Refer to; Transfer Procedure; could cut Off power to the critical load.; Transfer the UPS system to bypass (see; System; load and the load is now on Maintenance Bypass.
Operation Liebert ® NX ™ 20 2.5.3 Load Transfer and Retransfer-Single Module System Changing the load from the UPS system to the UPS bypass is called a transfer. Changing the load from UPS bypass to the UPS system is called a retransfer. Note that the UPS system control logic can initiate automatic ...
Page 27 - Bypass; Retransfer-Single Module System
Operation 21 Liebert ® NX ™ 2.5.5 Maintenance Bypass Load Transfers-Single Module System: If Load is on Maintenance Bypass 1. Verify that the module’s rectifier is On and in bypass mode. See 2.5.1 - Startup—Single Module System for the startup sequence. 2. Close the Bypass Input Breaker (BIB) or ver...
Page 30 - Automatic Operations
Operation Liebert ® NX ™ 24 2.6 Automatic Operations The Liebert NX UPS system is designed to function while unattended by an operator. The system control logic monitors the performance of the UPS, the availability of power sources and the current required by the critical load.The system control log...
Page 31 - to Bypass, UPS System Faults; an interrupted load transfer is a very unlikely occurrence.
Operation 25 Liebert ® NX ™ 2.6.2 Automatic Transfers to Bypass (Overload Condition) The UPS system will initiate an automatic load transfer to the bypass line if an overload condition exceeds the current-versus-time curve of overload capacity or if specified UPS system faults occur.The Overload Tra...
Page 32 - other than output overload.
Operation Liebert ® NX ™ 26 2.6.4 Automatic Retransfers to UPS The following critical bus conditions must be present to initiate an automatic retransfer of the critical load from the bypass source to the UPS inverter:1. Critical load was initially transferred to the bypass source due to a system ove...
Page 33 - Remote Alarm Unit; the connection cable must not exceed 1000ft.; MopUPS Shutdown and Monitoring Software; Safe system shutdown
Options 27 Liebert ® NX ™ 3.0 O PTIONS 3.1 Remote Alarm Unit A remote alarm panel is available for displaying important individual UPS messages. The length of the connection cable must not exceed 1000ft. 3.2 MopUPS Shutdown and Monitoring Software The MopUPS Professional software package provides sa...
Page 34 - Manage UPS Adapter; DHCP Network Configuration; Connectivity; Table 3; Interface
Options Liebert ® NX ™ 28 3.3 Manage UPS Adapter ManageUPS NET Adapter III offers an open approach to network power management by delivering a complete set of manageability options including: WEB, Telne and Out-Of-Band accessibility, in addition to the full-featured, embedded SNMP agent. Event messa...
Page 35 - Available Selectable Input Contacts
Options 29 Liebert ® NX ™ 3.4.1 Available Selectable Input Contacts • On Gen• Fast Power Off• MBB Aux Contacts• Start battery test (see Note 4 below) • Fault acknowledge• Bypass and Inverter both Off • Stop battery test (see Note 4 below) Notes 1. Each signal can be inverted2. Each signal can have a...
Page 36 - AINTENANCE; Safety Precautions; Battery Cabinet Precautions on page 2
Maintenance Liebert ® NX ™ 30 4.0 M AINTENANCE 4.1 Safety Precautions Observe the safety precautions in Battery Cabinet Precautions on page 2 . Observe all of the warnings below before performing any maintenance on the UPS and associated equipment. Also observe the manufacturer’s safety precautions ...
Page 37 - Liebert Services; UPS Startup; Maintenance Agreements: The Signature Program; UPS Service Agreements; Training
Maintenance 31 Liebert ® NX ™ 4.2 Liebert Services Startup, UPS maintenance, DC source maintenance and training programs are available for the Liebert NX UPS through your Emerson ® sales representative. 4.2.1 Professional Startup UPS Startup —Emerson ® customer engineers perform a thorough non-power...
Page 38 - Routine Maintenance
Maintenance Liebert ® NX ™ 32 4.3 Routine Maintenance You should become thoroughly familiar with the equipment, but at no time should you go beyond the specific procedures in this manual while performing maintenance or correcting a malfunction.If you have any doubt as to what must be done, call Lieb...
Page 39 - Battery Maintenance; Table 4; Component; as with the manufacturers’ specifications.
Maintenance 33 Liebert ® NX ™ 4.3.3 Limited Life Components The Liebert NX UPS has a design life well in excess of 10 years. Well-maintained units can continue to provide economic benefits for 20 years or more. Long-life components are used in the UPS wherever practical and cost-effective. However, ...
Page 40 - connection resistance should be made.; grounded metal surface.
Maintenance Liebert ® NX ™ 34 4.4.1 Battery Safety Precautions Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from batteries.When replacing batteries, use the same number and type of batt...
Page 41 - Matching Battery Cabinets—Optional; Voltage Records; about equalize charging.; Table 5; Number of Cells
Maintenance 35 Liebert ® NX ™ NOTICE Risk of improper cleaning. Can cause equipment damage.Batteries should be cleaned with a dry cloth or a cloth lightly moistened with water. Do not use cleaners on the batteries. Solvents can make the battery cases brittle.Because individual battery characteristic...
Page 42 - Battery Cell Terminals; tighten if necessary.; more than the retorque value.; Table 7; shows battery retorque values.; Other DC Sources; manual, available on the manufacturer’s Web site.; Table 6; Retorque Value; Enersys
Maintenance Liebert ® NX ™ 36 Battery Cell Terminals : Check for discoloration, corrosion and connection integrity. Clean and tighten if necessary. NOTE that when installing a new battery, the initial torque value is 5 lb.-in. more than the retorque value. Table 7 shows battery retorque values. If t...
Page 43 - Detecting Trouble; Reporting a Problem
Maintenance 37 Liebert ® NX ™ 4.5 Detecting Trouble It is important that the operator check the instrument readings if abnormal equipment performance is suspected. Any metered value that differs appreciably from normal could mean an impending malfunction and should be investigated. 4.5.1 Items to ch...
Page 44 - PECIFICATIONS; DC Sources; DC source manual in conjunction with this manual.; Environmental Conditions; Notes on Environmental Specifications; of excess moisture and contaminants.; Parameter
Specifications Liebert ® NX ™ 38 5.0 S PECIFICATIONS 5.1 DC Sources 5.1.1 Battery Operation The separate battery manufacturer’s manual, available on the manufacturer’s Web site, provides the necessary information for the installation, operation and maintenance of the battery. Use the battery manual ...
Page 45 - Table 8
Specifications 39 Liebert ® NX ™ Table 8 Electrical specifications Input Parameters Input Voltage to Rectifier, VAC, 3-phase, 3-wire 480V Input Voltage to Bypass, VAC, 3-phase, 3-wire 480V Input Voltage Range, VAC +10% to -30% Input Frequency, Hz 60 Permissible Input Frequency Range, Hz 55-65 Rectif...
Page 48 - by helping customers optimize their data center; Business-Critical Continuity
Ensuring The High AvailabilityOf Mission-Critical Data And Applications. Emerson Network Power, a business of Emerson (NYSE:EMR),is the global leader in enabling Business-Critical Continuity ™ from grid to chip for telecommunication networks, data centers,health care and industrial facilities. Emers...
