Emerson 30-200kVA - Manuals

iv 8.3 Prompt (Pop-Up) Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 8.4 Dynamic Energy Flow Chart and UPS Help Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 8.5 Default Screen Saver . . . . . . . . . . . . ....

v FIGURES Figure i Model number nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Figure 1 Residual current circuit breakers (RCCB) symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 2...

vii TABLES Table 1 Maximum steady state AC and DC currents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 2 Distance from floor to connection point on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 3 Input dry conta...

viii Dear Customer:Please allow us to congratulate you on choosing a Liebert manufactured Uninterruptible Power System.If this is your first Liebert UPS, we cordially welcome you to a lifetime relationship of after-sales support designed to keep your Liebert UPS and your systems permanently at their...

ix Figure i Model number nomenclature UPS Single Module Liebert NXa UPS module ratings:30 & 40kVA (with internal battery)60, 80, 100, 120, 140, 160, 200kVA (without internal battery) Example: NXA0A0200U = 200kVA module for Europe and Middle East, 400V/230V output Options Model Identification Not...

1 SAFETY PRECAUTIONS This manual contains information concerning the installation and operation of this Emerson Network Power Liebert NX Uninterruptible Power System (UPS).This manual should be read before commencing installation.The UPS must be commissioned and serviced by an engineer approved by t...

2 User-Serviceable Parts All equipment maintenance and servicing procedures involving internal access requires the use of a tool and should be carried out only by trained personnel. There are no user-serviceable parts behind covers requiring a tool for removal.This UPS is fully compliant with safety...

Single Module UPS Installation 3 1.0 S INGLE M ODULE UPS I NSTALLATION 1.1 Introduction This following section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert NX uninterruptible power supply and related equipment.This chapter is a g...

Single Module UPS Installation 4 1.3 Location 1.3.1 UPS Room The UPS and its internal battery is intended for indoor installation and should be located in an envi- ronment with clean air and with adequate ventilation to keep the ambient temperature within the specified operating range (see Table 33 ...

Single Module UPS Installation 5 1.4 Positioning The cabinet is mounted on four casters for ease of positioning and for moving short distances. Jacking feet are provided to prevent the UPS from moving once it has been wheeled to its final position.For optimal design life, the place chosen must offer...

Single Module UPS Installation 6 1.4.5 Clearances The Liebert NX has no ventilation grilles at either side of the UPS. To enable routine tightening of power terminations within the UPS, in addition to meeting any local regulations, Liebert recom- mends providing adequate clearance in the front of th...

Single Module UPS Installation 7 1.5.1 Rectifier and Bypass Input Overcurrent protection must be installed at the distribution panel of the incoming main supply. The protection must discriminate with the power cables current capacity and with the overload capacity of the system (see Table 38 ). As a...

Single Module UPS Installation 8 1.6 Power Cables The cable design must comply with the voltages and currents provided in this section, follow local wir- ing practices and take into consideration the environmental conditions (temperature and physical support media).For cable entry terminal, refer to...

Single Module UPS Installation 9 1.6.1 Cable Termination Once the equipment has been finally positioned and secured, connect the power cables as described in the following procedure. Refer to the appropriate cable connection drawing in 5.0 - Installation Drawings . 1. Verify that the UPS equipment i...

Single Module UPS Installation 10 Output System Connections 6. Connect the system output cables between the UPS output (U2-V2-W2-N terminals) and the critical load and tighten the connections to 5Nm for M6 bolts, to 13Nm for M8 bolts or to 26Nm for M10 bolts. Ensure correct phase rotation. External ...

Single Module UPS Installation 11 1.7 Control Cables and Communication 1.7.1 Monitor Board Features Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery system (external battery circuit breaker, battery temperature sensor), communicate with a personal ...

Single Module UPS Installation 12 1.8 Dry Contacts The UPS provides input dry contacts and output dry contacts. 1.8.1 Input Dry Contacts There are several input dry contacts at the X3 slot. X3 Ancillary Control and Alarms X3 IN DRY: Environmental, Battery Ground Fault and Generator Contacts The UPS ...

Single Module UPS Installation 13 1.8.2 Maintenance Bypass Cabinet Interface J26 and J30 are the MBC interface. 1.8.3 External Circuit-Breaker Interface J10 is the interface to any external battery circuit breaker (BCB). Table 4 Maintenance bypass cabinet interface Position Name Description J26.1 T_...

Single Module UPS Installation 14 1.8.4 Output Dry Contacts There are three output dry contact relays at the X1 slot (see Figure 4 and Table 6 ) Figure 4 Output dry contacts and EPO wiring for firmware before M162 Figure 5 EPO wiring for firmware M200 or later 1.8.5 Emergency Power Off Input The UPS...

Single Module UPS Installation 15 switch between these two terminals using shielded cable (see Figure 4 and Table 7 ). If this function is not used, terminals X2: 3&4 must be opened and X2: 1&2 must be closed. X5: Auxiliary DC Power Output Auxiliary DC power for modem or external SNMP card. ...

Single Module UPS Installation 16 Serial Ports RS232-1 and RS232-2 RS232-1 provides serial data and is intended for direct use with Liebert MultiLink monitoring and server shutdown software.RS232-2 provides serial data and is intended for use by authorized commissioning and service person- nel.These...

Battery Installation 17 2.0 B ATTERY I NSTALLATION 2.1 Introduction The UPS battery bank consists of battery blocks connected in series to provide a D.C. string voltage as required by the UPS converter. The 'AUTONOMY TIME' (the time during which the battery can maintain supply to the load in the eve...

Battery Installation 18 2.2 Safety Special care should be taken when working with the batteries associated with the Liebert NX UPS system. When all the cells are connected together, the battery terminal voltage is potentially hazard- ous. The battery installation must be segregated from all but appr...

Battery Installation 19 2.3.2 Temperature Considerations Valve-regulated, lead acid battery cells are sensitive to ambient temperature and should be operated between 15°C and 25°C (59-77°F). Battery capacity is increased by 1% for every 1°C (2°F) increase in temperature up to 25°C (77°F). Battery li...

Battery Installation 20 2.3.6 Moving the Battery Cabinets Ensure that the weight is within the designated surface weight loading of any handling equipment. See Table 8 for weight details. Battery cabinets can be handled by means of a fork lift or similar equipment. 2.3.7 Cable Entry Cables enter the...

Battery Installation 21 2.3.8 General Arrangement Drawings Refer to Figures 6 through 10 for general arrangement of battery cabinet models. Figure 6 Narrow battery cabinet with top and bottom cable entry locations FRONT VIEW FRONT VIEW Door Open SIDE VIEW BOTTOMVIEW BACK VIEW TOPVIEW 1600 55 630 55 ...

Battery Installation 22 Figure 7 Narrow battery cabinet with top cable entry location Cable Entry 100x250 mm (3.9x9.8") Front Top Top Front Front 96,5 (3.8") 225 (8.8")

Battery Installation 23 Figure 8 Wide battery cabinet with top and bottom cable entry locations 1600 1490 100 100 603 603 70 55 55 55 630 55 1321 Side View Side View Top View Front View Bottom View 825

Battery Installation 24 Figure 9 Wide battery cabinet with bottom cable entry location 150 152 270 265 270 150 Bottom View Front View

Battery Installation 26 Figure 11 Large battery cabinet dimensions 1488 1800 825 116 300 660 300 116 552 180 55 630 55 55 660.5 660.5 55 130 270 691 270 130 567 150 Bottom View Top View Front Side

Battery Installation 28 Figure 13 SENXA0NBCN4LCB.eps W001 W001 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W002 W002 W002 W002 W101 W102 W301 W302 BCB La y er 1 La y er 2 La y er 3 SP ...

Battery Installation 38 2.4 Battery Power Cables 2.4.1 Connection Principles The following notes, in conjunction with the diagrams, illustrate the broad principles to be followed when fitting and connecting the majority of battery installations. 2.4.2 Fitting the Batteries 1. In general, at least 10...

Battery Installation 39 2.5 Battery Control The battery circuit breaker is controlled by the battery circuit breaker controller board, which is located within the battery cabinet or adjacent to the battery circuit breaker when the batteries are rack-mounted. This board controls the circuit breaker's...

Battery Installation 40 2.6 Battery Circuit Breaker Box The box contains a battery isolating circuit breaker and the circuit breaker controller board as also mounted in the battery cabinet.A range of battery circuit breaker boxes is available for use in installations where the battery is not install...

Battery Installation 41 Figure 24 Battery circuit breaker box—30-120kVA and 140-200kVA Standard cable entry is from bottom side. The baseplate can be rotated to permit top cable entry. Table 10 Battery circuit breaker box legend Key # Component 1 Battery connections, positive and negative 2 Connecti...

Battery Installation 42 Figure 25 Battery circuit breaker box connection NOTES 1. Cable W3 supplied with temperature sensor (5m) and with BCB Box (30m)2. Cable W2 supplied with BCB Box (30m)3. X102 labels are 1(DRV), 2(AUX), 3(GND1), 4(USE) - refer to Table 11 for full X102 label descriptions 4. X10...

Battery Installation 43 2.6.1 Battery Temperature Sensor—Optional The optional external battery temperature sensor kit, supplied separately from the battery circuit breaker, contains one probe and one temperature transport board as illustrated in Figure 26 . It is connected to the UPS Monitor Board ...

Battery Installation 44 Figure 27 Multiple temperature sensors, battery circuit breaker box and UPS module NOTE: 1. Each probe consists one OT6-4 terminal and one precision temperature sensor that is sealed in the OT6-4's terminal. The whole probe is supplied as one cable. 2. The type of temperature...

UPS Multi-Module Installation 45 3.0 UPS M ULTI -M ODULE I NSTALLATION 3.1 General The installation of a multi-module UPS configuration must follow the installation procedure for a sin- gle UPS module with the additional requirements detailed in this chapter.In addition to the local EPO push button ...

UPS Multi-Module Installation 46 3.2 Paralleled UPS Modules The basic installation procedure of a parallel system comprising two or more UPS modules is the same as that of single module system. The following sections only introduce the installation proce- dures specific to the parallel system. 3.2.1...

UPS Multi-Module Installation 47 Figure 30 Dry contacts, multiple UPS modules with distribution panel 3.2.2 External Protective Devices Refer to the instructions in 1.0 - Single Module UPS Installation . 3.2.3 Power Cables The wiring of power cables is similar to that of single module system. The By...

UPS Multi-Module Installation 48 3.2.4 Control Cables Intermodule Control Shielded and double insulated control cables available in lengths of up to 30 meters must be intercon- nected in a ring configuration between UPS modules as shown below. The parallel control board is mounted on the top, behind...

UPS Multi-Module Installation 49 3.3.3 Power Cables The wiring of power cables is similar to that of single module system except that the output of the upstream UPS is fed into the bypass input of the downstream UPS, and the load is fed by the down- stream UPS through its inverter or bypass. The byp...

UPS Multi-Module Installation 50 3.4 Dual Bus System 3.4.1 Cabinet Installation The Dual Bus System consists of two independent UPS configurations each consisting of one or more UPS modules. Dual Bus Systems are high availability configurations suitable for loads with multiple input terminals. For s...

UPS Multi-Module Installation 51 3.4.4 Control Wires For Liebert NX to NX dual bus configuration, interconnect the optional DBS cable between any DBS ports of two parallel systems as illustrated in Figure 34 . Figure 34 Connections of a typical dual bus system utilising Load Bus Synch 3.4.5 Extended...

External Optional Cabinets 52 4.0 E XTERNAL O PTIONAL C ABINETS 4.1 External Maintenance Bypass Cabinets The bypass cabinet enables maintenance operations and repairs to be performed in full isolation while also allowing the disabling of each UPS without affecting the ordinary operation of the syste...

External Optional Cabinets 53 EXT-Maint X3-1&2 on UPS Parallel Board M3 (leave open if no external bypass switch is used). Pro- vides external maintenance bypass interlock protection for the UPS. Short circuit means external bypass closed. EXT-Out (X3-3&4) on UPS Parallel Board (leave shorte...

External Optional Cabinets 54 Figure 38 Dual input external isolation transformer cabinet Figure 39 Output external isolation transformer cabinet 4.4 Top Cable Entry Option Optional Top Cable entry cabinets are available for every range of UPS. Q1 Q3 Q 5 X3 X1 CB To Load UPS Input Mains Supply 3P Su...

Installation Drawings 55 5.0 I NSTALLATION D RAWINGS Figure 40 Electrical connections N.O. V< N P 2 2 4 3 2 3 4 3 4 BFP-OBFP-SBFP-C INV-C INV-S INV-O ACF-C ACF-S ACF-O +-+- 0V GND 1 4 3 2 A-IN +12V ENV-T GND ENV +12V GEN BtG 1 4 3 2 GND +12V T_IT AUX_I 4 3 12 FUSE 1 T_OT AUX_O F_FAN 3 4 2 EPO-NO ...

Installation Drawings 56 Figure 41 General arrangement—30-40kVA UPS 1) Air inlet grille 2) Air outlet grille 3) Castors for manoevring 4) Adjustable fixing feet 5) Seismic anchors (Optional) 6) Cable entry 7) Fans 8) Operator control and display panel All dimensions are in mm. 825

Installation Drawings 57 Figure 42 Front view, door open30-40kVA NX Internal battery trays behind cover5x (159 x 364 x 685mm) HWD NXa 30-40kVA Front View 1) Output Switch—Q52) Maintenance Bypass Switch—Q33) Bypass Input Switch—Q24) Mains Input Switch—Q15) Monitor Board—U2

Installation Drawings 58 Figure 43 Cable terminal layout—30-40kVA NX 1) Main (Rectifier) connections (N1-U1-V1-W1) 2) Bypass connections (N1-U3-V3-W3) 3) Output connections (N2-U2-V2-W2) 4) Battery connections (+/-) 4.1 > to internal battery 4.2 > to external battery 5) Earth Note 1: For split...

Installation Drawings 59 Figure 44 Location of parallel logic board M3 and options—30-40kVA NX S k t Indicator B tt 1. Parallel logic board2 & 2a. Battery Ground Fault detection, optional 3. Battery start interface, optional CurrentTransformerW1-A35S 20 21 2a 3 1 2

Installation Drawings 60 Figure 45 Internal battery layout and connections—30-40kVA NX + + + + + + + + + + + + + 1) Internal battery Fuses (+/-) 2) Ebattery connections (+/-) 3) Cable entry 4) Rectifier fuses 5) Contactor All dimensions are in mm. 120.5 364 1 3 BATTERY RED RED RED BLUE BLUE RED BLUE...

Installation Drawings 61 Figure 46 General arrangement—60-80kVA NX 1) Air inlet grille 2) Air outlet grille 3) Castors for manoevring 4) Adjustable fixing feet 5) Seismic anchors (Option) 6) Cable entry 7) Fans8) Operator control and display panel All dimensions are in mm. FRO NT VIEW Section A-A TO...

Installation Drawings 62 Figure 47 Front view doors open—60-80kVA NX 1) Parallel logic board 2) Monitor board 3) Battery start Interface 4 and 4a) Battery Ground Fault detection (optional)

Installation Drawings 63 Figure 48 Cable terminal layout—60-80kVA NX 1. Main (Rectifier) connections (N1-U1-V1-W1)2. Bypass connections (N1-U3-V3-W3)3. Output connections (N2-U2-V2-W2)4. Battery connections (+ / -)5. Earth 6. Mains Input isolator (Q1)7. Bypass Input isolator (Q2)8. Maintenance bypas...

Installation Drawings 64 Figure 49 General arrangement—100-120kVA NX Front view Side view 1) Air inlet grille 2) Air outlet grille 3) Castors 4) Adjustable fixing feet 5) Seismic anchors (option) 6) Cable entry Base view Top view 700 1800 1 5 3 696 83 4 800 825 2 6

Installation Drawings 65 Figure 50 Front view, door open—100-120kVA NX Figure 51 Parallel logic board location—100-120kVA NX 1) Input s witc h (Q 1) 2) B ypa s s s witc h (Q 2)3) Ma inte na nc e bypa s s s witc h (Q 3) 4) O utput s witc h (Q 5) 5) Monitor boa rd U 2 5 1 2 3 4 Parallel cable

Installation Drawings 68 Figure 56 Cable terminal layout—140-200kVA NX U3 V3 W3 U2 V2 W2 N3 N1 W1 V1 U1 Bypass Main Input Output Battery

Operation 75 6.0 O PERATION 6.1 Introduction The Liebert NXa Uninterruptible Power System is connected between the Mains AC input source and the critical load to provide uninterruptible power to the latter. The power from the UPS is free from voltage and frequency variations and from disturbances ex...

Operation 76 6.1.1 Split-Bypass Input Figure 63 illustrates the Liebert NX UPS in what is known as the split-bypass configuration wherein a separate power switch to a dedicated bypass power source that also feeds the maintenance bypass line connects the static bypass line. Where a separate power sou...

Operation 77 6.2 Multi Module UPS—1+N Multi-module UPS are formed by several “single unit” UPS modules to constitute “1+N”system where groups of one or more, up to six, single units operate together for the purpose of providing additional power or reliability or both. The load is equally shared betw...

Operation 78 6.2.2 Requirements for Paralleling of UPS Modules A group of paralleled modules behave as if it were one large UPS with the advantage of presenting higher reliability. In order to assure that all modules are equally utilised and to comply with relevant wiring rules, the following requir...

Operation 79 6.3.4 Bypass Mode If the inverter overload capacity is exceeded, or if the inverter becomes unavailable for any reason, the static transfer switch will perform a transfer of the load from the inverter to the bypass source, with no interruption in power to the critical AC load. Should th...

Operation 80 6.4 Battery Management—Set During Commissioning 6.4.1 Normal Function • Constant charging current— Current can be set up to limit charging power. • Constant boost voltage (if applicable) — Voltage of boost charging can be set as required by the type of battery.For Valve Regulated Lead A...

Operating Procedures 81 7.0 O PERATING P ROCEDURES 7.1 Introduction Following installation and commissioning by an authorised service engineer, the UPS will operate in one of the modes described in 6.3 - Modes of Operation . This chapter describes the various proce- dures available for the operator ...

Operating Procedures 82 In multi-module systems — perform each step of the procedure in every UPS module before proceed- ing to the next step. 1. Open the UPS door to gain access to the main power switches.2. Close Bypass input power switch Q2 and UPS output power switch Q5. Close also any external ...

Operating Procedures 83 7.3 Startup into ECO Mode Applies only to a single module UPS and when programmed by the commissioning engineer to per- form ECO mode control of the power delivered to the load.Follow 7.2 - Startup in Normal Mode and observe at the end of the procedure that the mimic panel by...

Operating Procedures 84 7.5 UPS Self-Test The UPS test procedure checks the control functions of the UPS, the mimic flow chart LEDs and the audible alarm. This self-test is password controlled and menu driven. It can be carried out from the UPS front panel by the operator and takes 5 seconds. 7.5.1 ...

Operating Procedures 85 7. Press the EPO (Emergency Power Off) button at the UPS front panel of this UPS module only . This will disable further Rectifier, Inverter, Static Switch and Battery operation. This will not affect the manual maintenance bypass power switch. 8. Open the Rectifier input powe...

Operating Procedures 86 7.7 Isolation of One Module in a Multi-Module System 7.7.1 Multi-Module Systems With External Output CB1 Figure 66 Typical 1+N system block diagram with common input supply, with separate batteries and optional output / bypass distribution panel 1. Turn Off inverter.2. Open E...

Operating Procedures 87 output becomes enabled but interlocking works now. 10. Turn On inverter and join the parallel system. 7.7.2 Multi-Module System Without External Output Circuit Breaker 1 This procedure is indicated for isolation of one UPS module from other modules of a group of other- wise n...

Operating Procedures 88 7.8 Insertion of One Module in a Multi-Module System This procedure is indicated to reintegrate 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...

Operating Procedures 89 7.9 Shutdown Procedure—Complete UPS and Load Shutdown This procedure must be followed to completely power down the UPS and LOAD . All power switches, isolators and circuit breakers will be opened and power will be removed from the load.In multi-module systems – perform each s...

Operating Procedures 90 7.11 Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions Once all appropriate measures have been taken to correct the problem indicated by the alarm mes- sage appearing on the operator control panel display, carry out this procedure to restore the UPS to ...

Operating Procedures 91 7.13 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 different language than the one being displayed:1. From the main menu...

Operator Control Panel and Display 92 8.0 O PERATOR C ONTROL P ANEL AND D ISPLAY 8.1 Introduction The operator control panel and display is located on the front door of the UPS. The panel is the access point for operator control and monitoring of all measured parameters, UPS and battery status and o...

Operator Control Panel and Display 93 8.1.1 Mimic Power Flow The LED mounted on the mimic flow chart represent the various power paths and current UPS oper- ational status. 8.1.2 Audible Alarm (Buzzer) UPS activity is accompanied by the following sounds Table 13 Rectifier indicator—1 Green Rectifier...

Operator Control Panel and Display 94 8.1.3 Direct Access Push Buttons (Keys) Press and hold Direct Access key briefly until acknowledged by a single beep. 8.1.4 LCD Monitor and Menu keys The user-friendly and menu-driven 320 x 240 dot graphic LCD monitor displays real time data and at the same time...

Operator Control Panel and Display 95 The function of keys F1 to F4 is shown by a self-explanatory icon as appropriate for the particular window. As shown in Figure 68 above, pressing F1 moves the cursor (resting in “OUTPUT”) from the UPS Menu Window (2) to current record window (4) where it would f...

Operator Control Panel and Display 96 8.1.5 Detailed Description of Menu Items The description that follows refers to the graphic LCD monitor window shown on Figure 68 . UPS System Window: This fixed-pane window displays current time and date and identifies the UPS, its configuration and its status....

Operator Control Panel and Display 97 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. Battery Battery voltage (V) Battery bus voltage Battery...

Operator Control Panel and Display 98 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 M...

Operator Control Panel and Display 99 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...

Operator Control Panel and Display 103 8.3 Prompt (Pop-Up) Windows The prompt window is displayed during the operation of the system to alert the user to certain condi- tions and / or to require user confirmation of a command. Table 24 Prompt windows, meanings Prompt Meaning Transfer with interrupt,...

Operator Control Panel and Display 104 8.4 Dynamic Energy Flow Chart and UPS Help Screen This screen displays a mimic diagram of the UPS that includes energy flow and status of isolation and transfer switches. Press the Help key to activate this screen. Press again to toggle between this screen and ...

Options—For Assembly Inside the UPS Cabinet 105 9.0 O PTIONS —F OR A SSEMBLY I NSIDE THE UPS C ABINET Several items of optional equipment are available for connection to the Liebert NX UPS. These are described in this section of the manual and should be fitted prior to installation. 9.1 Protection 9...

Options—For Assembly Inside the UPS Cabinet 106 Figure 72 Battery Start Option for UPS with external battery 9.1.5 Bypass Current Sharing Inductors Applicable in paralleled UPS configurations to ensure that the (passive) static bypass switches, when activated, share the load current. The inductors p...

Options—For Assembly Inside the UPS Cabinet 107 Figure 73 Bypass current sharing inductances UPS 1 In p u t Ou tp u t Static Switch Bypass Current Sharing Induct. N U3 V3 W3 Q 2 Q5 N2 U2 V2 W 2

Options—For Assembly Inside the UPS Cabinet 108 9.1.6 Battery Ground Fault Detection In addition to any residual current device mounted externally and upstream the UPS or when optional isolation transformers are fitted to the UPS, an optional residual battery current device can be fitted to detect l...

Options—For Assembly Inside the UPS Cabinet 109 9.1.7 Replacing Dust Filters Installing the two dust filters in the Liebert NX requires only a Phillips screwdriver. Each filter is held in place by a bracket on either side of each filter. To install each filter:1. Open the UPS door and locate the fil...

Options—For Assembly Inside the UPS Cabinet 110 9.2 Communication and Monitoring Figure 76 Communication bays and cable location ( = Notes:a) All Intellislot cards are supported in any bay.b) Port sharing is:- PERMITTED between RS232-x DB9 devices and Relay / Multiport4 Intellislot cards (i.e., Seri...

Options—For Assembly Inside the UPS Cabinet 111 9.2.1 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 network and in addition the same card will also transmit the s...

Options—For Assembly Inside the UPS Cabinet 112 9.2.2 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 signals, the easy-to-install card integrates with AS/400...

Options—For Assembly Inside the UPS Cabinet 113 9.2.3 Multiport-4 Card The Multiport-4 card provides 4 sets of voltage-free contact closures for remote monitoring of alarm conditions UPS operation On Battery and battery low condition. A typical application is to allows a maximum of four computer sys...

Options—For Assembly Inside the UPS Cabinet 114 9.2.4 OC485 Web Card – Modbus, Jbus, IGM Net The OpenComms 485 Card facilitates SiteScan Web or Building Management Systems monitoring.The RS232 port is used for connection to a personal computer for setting up.The RS-485 port supports IGM Net and Modb...

Technical Specifications 115 10.0 T ECHNICAL S PECIFICATIONS 10.1 Conformity and Standards The UPS has been designed to conform to the following European and international standards: The above mentioned product standards incorporate relevant compliance clauses with generic IEC and EN standards for s...

Technical Specifications 116 Table 34 Efficiency, AC/AC Input and output voltage 400VAC, battery charged, full rated linear load Rated Power, kVA Unit of Measurement 30 40 60 80 100 120 140 160 200 Normal Mode(dual conversion) % 89 90 91 91 90.6 91.1 92.5 92.7 92.8 ECO Mode % 94 94.8 94.3 95 95 95.6...

Technical Specifications 117 Table 37 Intermediate DC circuit, battery Rated Power, kVA Unit of Measurement 30 40 60 80 100 120 140 160 200 Battery bus voltage VDC Nominal: 480V (VRLA Float charge is 540V) Range: 400V ~ 600V Quantity of lead-acid cells Nominal — 240 = [40 x 6-cell (12V) blocks] Maxi...

Technical Specifications 118 Table 38 Inverter output to critical load Rated Power(load pf 0.8 lag) kVA 30 40 60 80 100 120 140 160 200 (load pf unity) kW 24 32 48 64 80 96 112 128 160 (load pf 0.9 lead) kVA 24 32 48 64 80 96 112 128 160 Rated AC Voltage 1 V (ac) 380/400 / 415 V (three-phase, four-w...

Technical Specifications 119 Table 39 Bypass input Rated Power, kVA Unit of Measurement 30 40 60 80 100 120 140 160 200 Rated AC Voltage 1 V (ac) 380/400/415 V three-phase four-wire, sharing neutral with the rectifier input and providing neutral reference to the output Rated current 380V A 45 61 91 ...

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