Emerson 30-200kVA manual

AC P ow er For Bu siness-Critical C ontinuit y Li eber t N X ™ User Ma nual 50 and 60 Hz , 30-200kV A, 400V[...]

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i T ABLE OF CONTENTS 1.0 S INGLE M ODULE UPS I NST ALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Preliminary Checks . . . . . . . . . . . . . . . . . . [...]

ii 2.4 Battery Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2.4.1 Connection Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2.4.2 Fitting the Batteries . . . . . . . . . . . . . . . . . [...]

iii 6.3 Modes of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 6.3.1 Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 6.3.2 Battery Mode (Stored Energy Mode) . . . . . . . . . [...]

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 Mon itoring board (U2) auxilia ry terminal blo ck[...]

vi Figure 47 Front view doors open—60-80kVA NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Figure 48 Cable term inal layout—60- 80kVA NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Figure 49 General arrang ement—100-120kVA NX . . . . . . . [...]

vii TA B L E S Table 1 Maximum steady state AC and DC cu rrents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 2 Distance from floor to connectio n po int on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 3 Input dry contacts at X3 . . . . . . . . . . . . . . . . .[...]

viii Dear Customer: Please allow us to congra tulate you on choosing a Liebert manufa ctured Uninterruptible Power System. If this is your first Liebert UPS, we cordially welcom e you to a lifetime relation ship of after-sales support designed to keep your Liebert UPS and your systems permanently at their peak performance. If you already own and us[...]

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, 200k VA (without i nternal battery) Example: NXA0A0200U = 200kV A module for Europe and Middle East, 400V/230V output Options Model Identification Note Narrow battery cabinet NXA0BCN Specify: UPS[...]

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1 SAFETY PRECAUTIONS This manual contains informati on concerning the in stallation and operation of this Emerson Network Power Liebert NX Uninterrupt ible Power System (U PS). This manual sh ould be read before commencing installa tion. The UPS must be commissioned an d serviced by an engineer approved by the manufacturer (or agent). Failure to do[...]

2 User-Serviceable Part s All equipmen t maintenance and servicing pr ocedures involving i nternal access requires the use of a tool and should be carried out only by trai ned pers onnel. There are no user-serviceable parts behind covers requiring a tool for removal. This UPS is full y compliant with safe ty regulations for e quipment located in an[...]

Single Module UPS Install ation 3 1.0 S INGLE M ODULE UPS I NST ALLATION 1.1 Introduction This following section describes the requirements th at must be taken into account when p lanning the positioning an d cabling of the Liebert NX uninterru ptible power supply and related equipme nt. This chapter is a guide to general procedures and pr actices [...]

Single Module UPS Install ation 4 1.3 Location 1.3.1 UPS Room The UPS and its i nternal battery is intende d for indoor installation and should be loca ted in an envi- ronment with clean air and with adequate ventilation to keep th e ambient temperature within the specified operating range (see Table 33 ). All models in th e Liebert NX UPS ra nge a[...]

Single Module UPS Install ation 5 1.4 Positioning The cabinet is mounted on four casters for ease of positi oning and for moving short distances. Jacking feet are provided to prevent the UPS from moving once it has been w heeled to its final position. For optimal design life, the place chosen mus t offer: •E a s y c o n n e c t i o n • Enough s[...]

Single Module UPS Install ation 6 1.4.5 Clearances The Liebert NX has no ventilation grilles at either side of the UPS. To enab le routine tightening of power terminations within the UP S, in addition to meeting any local regulations, Liebert recom- mends providing adequate clearance in the front of the equipment for unim peded passage of person- n[...]

Single Module UPS Install ation 7 1.5.1 Rectifier and Byp ass Input Overcurrent protection must be installed at the di stribution 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 guideline, a thermomagnetic circuit breaker, w[...]

Single Module UPS Install ation 8 1.6 Power Cables The cable design must comply with the voltages and currents provided in this sect ion, follow local wir- ing practices and take into considerati on the environmental conditions (tem perature and phys ical support media). For cable entry terminal, refer to Figures 43 , 48 , 52 and 56 . ! WARNING Bef[...]

Single Module UPS Install ation 9 1.6.1 Cable T ermination Once the equipment has been finally positioned and secured, connect the power cables as described in the followin g procedure. Refer to the appropriate cable connection drawing in 5.0 - Installation Drawing s . 1. Verify that the UPS equipment is iso lated from its external power source and[...]

Single Module UPS Install ation 10 Output System Connections 6. Connect the system output cables between th e 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 co rrect phase rotation. External UPS Battery Connection (60kVA Models and Above[...]

Single Module UPS Install ation 11 1.7 Control Cables and Communication 1.7.1 Monitor Board Features Based on your site’s specific needs, the UPS may re quire auxiliary connections to manage the battery system (external battery circuit breaker, battery temperature sensor ), communicate with a personal computer or provide alarm signaling to ex ter[...]

Single Module UPS Install ation 12 1.8 Dry Cont act s The UPS provides input dry contacts and output dry contacts. 1.8.1 Input Dry Cont acts 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 accepts external signalling from voltage-free [...]

Single Module UPS Install ation 13 1.8.2 Maintenance Byp ass Cabinet Interface J26 and J30 are the MBC interfa ce. 1.8.3 External Circuit-Breaker Interface J10 is the interface to any external battery circuit breaker (BCB). T able 4 Maintenance bypass cabinet i nterface Position Name Description J26.1 T_IT 1 Input transformer overtemperature (NC) J[...]

Single Module UPS Install ation 14 1.8.4 Output Dry Cont act s There are three output dry contac t relays at the X1 slot (see Figure 4 and Table 6 ) Figure 4 Output dry cont act s and EPO wiring for firmware be for e M162 Figure 5 EPO wiring for firmware M200 or later 1.8.5 Emergency Power Off Input The UPS has an Emergency Power Off (EPO) function[...]

Single Module UPS Install ation 15 switch between these two termin als 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 ca rd. The voltage is between 9V to 12V. The maxi- mum[...]

Single Module UPS Install ation 16 Serial Port s RS232-1 and RS232-2 RS232-1 provides serial data and is intended for direct use with Liebert MultiLink monit oring and server shutdown software. RS232-2 provid es serial data and is in tended for use by authori zed commissioning and service person- nel. These serial ports are shared with the optional[...]

Battery Installation 17 2.0 B ATTERY I NST ALLATION 2.1 Introduction The UPS battery bank consist s of battery blocks connec ted 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 event of a mains failure) is limite d by[...]

Battery Installation 18 2.2 Safety Special ca re should be take n when working with the batteries asso ciated with the Liebert NX UPS system. Whe n all the cells ar e conne cted together, the battery terminal voltage is pote ntially hazard- ous. The battery installation must be segregated from all but appropriately qualified maintenance personnel b[...]

Battery Installation 19 2.3.2 T emperature Considerations Valve-regulated , lead acid batte ry cells are sensit ive 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 life is reduced at temperatures above 25[...]

Battery Installation 20 2.3.6 Moving the Battery Cabinet s Ensure that the weight is wi thin the desig nated surface weig ht loading of any handling equipment. See Table 8 for weight details. Battery cabinets can be handled by means of a fork li ft or similar equipment. 2.3.7 Cable Entry Cables enter the battery ca binet from either the top or t he[...]

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 batt ery cabinet with top and bottom cable ent ry locations FRONT VIEW FRONT VIEW Door Open SIDE VIEW BOTTOM VIEW BACK VIEW TOP VIEW 1600 55 630 55 55 250 100 566,5 96,5 828 660 55 825[...]

Battery Installation 22 Figure 7 Narrow batt ery cabinet with top cable entry location Cable Entry 100x250 mm (3.9x9.8") Front To p T op Front Front 96,5 (3.8") 225 (8.8")[...]

Battery Installation 23 Figure 8 Wide batter y cabinet with top and bottom cable en try locations 1600 1490 100 100 603 603 70 55 55 55 630 55 1321 Side View Side View T op View Front View Bottom View 825[...]

Battery Installation 24 Figure 9 Wide batter y cabinet with bottom cable entry loca tion 150 152 270 265 270 150 Bottom View Front View[...]

Battery Installation 25 Figure 10 Wide batter y cabinet with fuse or optional circuit breaker locations Bottom Cable entry Adjustable Fixing Feet BCB controller board Battery Circuit Breaker Output busbar connections Fuses (alternative to BCB) T op Cable entry[...]

Battery Installation 26 Figure 1 1 Large battery cab inet dimensions 1488 1800 825 11 6 300 660 300 11 6 552 180 55 630 55 55 660.5 660.5 55 130 270 691 270 130 567 150 Bottom View T op View Front Side[...]

Battery Installation 27 Figure 12 Large battery cabine t with fuse or optional circuit breaker locat ions Battery Circuit Breaker BCB controller board Output busbar connections Fuses (alternative to BCB)[...]

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 Layer 1 Layer 2 Layer 3 SP ACE FRONT VIEW Layer 4 TO U PS BCB(125/200A) Tra y in La[...]

Battery Installation 29 Figure 14 SENXA0NBCN4LF W001 W001 W001 W002 W001 W002 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W001 W001 W001 W001 W001 W004 W006 W005 W003 FRONT VIEW TO BCB BO X TO BCB BO X BCB SP ACE Tra y in Layer 1 Tra y in Layer 2 Tra y in Lay[...]

Battery Installation 30 Figure 15 SENXA0NBCN5LCB W001 W001 W001 W002 W001 W002 W001 W001 W002 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W001 W001 W001 W002 W001 W001 W001 W001 W001 W001 W001 W102 W101 W301 W302 BCB SP ACE BCB(125/200A) TO UPS FRONT VIEW Tra y in Layer 1 Tra y in Layer 5 Tra y in [...]

Battery Installation 31 Figure 16 SENXA0NBCN5LF W001 W001 W001 W006 W004 W002 W002 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W002 W002 W001 W001 W001 W001 W001 W001 W002 W002 W001 W001 W001 W001 W005 W003 TO BCB BO X TO BCB BO X FRONT VIEW SP ACE BCB Tra y in Layer 1 Tra y in Layer 5 Tra y i[...]

Battery Installation 32 Figure 17 SENXA0NBCWXX3LCB W002 W002 W002 W301 W101 W102 W302 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 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 W001 Tra y in Layer 1 T ray master Layer 1 Layer [...]

Battery Installation 33 Figure 18 SENXA0NBCWXX3LF W002 W002 W002 W101 W102 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 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 W001 W006 W004 W005 W003 Tra y in Layer 1 T ray master Layer[...]

Battery Installation 34 Figure 19 SENXA0N BCWXX4LCB_2x4 W102 W101 W001 W301 W001 W001 W001 W001 W001 W001 W001 W003 W001 W001 W001 W302 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W004 W002 W004 W002 W004 W003 W003 W002 W004 Tra y in Layer 3 Tra y in Layer 1 T ray master Layer 1 Layer 3 T ray maste[...]

Battery Installation 35 Figure 20 SENXA0N BCWXX4LCB_4x2 W301 W101 W102 W002 W001 W001 W001 W001 W001 W001 W003 W001 W001 W001 W002 W002 W002 W002 W002 W302 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W002 W001 W001 W001 W001 W001 W001 W002 W002 Tra y in Layer 1 Tra y in Layer 3 FRONT VIEW BCB(125/200A) TO U P S Tra y in La[...]

Battery Installation 36 Figure 21 SENXA0NBCWXX4LF_2x4 W102 W101 W006 W004 W005 W003 W004 W002 W001 W001 W001 W001 W001 W003 W004 W001 W001 W001 W001 W003 W001 W001 W004 W001 W001 W001 W002 W004 W001 W002 W001 W001 W001 W001 W003 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 T ray master Layer 1 Layer 3 T ray master T ray master Layer 4 Lay[...]

Battery Installation 37 Figure 22 SENXA0NBCWXX4LF_4x2 W101 W102 W002 W001 W001 W001 W001 W001 W001 W003 W001 W001 W001 W002 W002 W002 W002 W002 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W001 W002 W001 W001 W001 W001 W001 W001 W002 W002 W006 W004 W005 W003 Tra y in Layer 1 Tra y in Layer 3 FRONT VIEW Tra y in Layer 2 SP ACE BC[...]

Battery Installation 38 2.4 Battery Power Cables 2.4.1 Connection Principles The following notes, in conjunction with the diagrams, illu strate the broad principles to be followed when fitt ing and co nnecting th e ma jority of battery installations. 2.4.2 Fitting the Batteries 1. In general, at least 10mm (3/8") must be left unobstructed on a[...]

Battery Installation 39 2.5 Battery Control The battery circuit breaker is controlled by the bat tery circuit breaker controller board, which is located within the battery cabinet or adjacent to the battery circuit breake r when the batteries are rack-mounted. This board controls th e circuit breaker's undervolt releas e coil and also provides[...]

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 inst allations where the battery is not installed in the battery cabinet, in which case the app[...]

Battery Installation 41 Figure 24 Battery circuit breaker box—30 -120kV A and 140-200kV A Standard cable entry is from bottom side. The base plate can be rotated to perm it top cable entry. T able 10 Battery circuit breaker box legend Key # Component 1 Battery connections, positive and negati ve 2 Connections from UPS, positive and negative 3 Bat[...]

Battery Installation 42 Figure 25 Battery circuit breaker box co nnection NOTES 1. Cable W3 supplied with temperature sensor (5m) and with BC B Box (30m) 2. Cable W2 supplied with BCB Box (30m) 3. X102 labels are 1(DRV), 2(AUX) , 3(GND1), 4(U SE) - refer to Table 11 fo r full X102 label descriptions 4. X101 - HAZARDOUS VOLTAGE - do not connect to b[...]

Battery Installation 43 2.6.1 Battery T emperature Sensor—Optional The optional external battery temp erature sensor kit, supplied sepa rately from the battery circuit breaker, contains one probe and one temperat ure transport board as illustrated in Figure 26 . It is connected to the UPS Monitor Board (either directly or in case of multiple sens[...]

Battery Installation 44 Figure 27 Multiple tempera ture sensors, battery circuit br eaker box and UPS module NOTE: 1. Each probe consists one OT6-4 terminal and one precision temp erature sensor that is sealed in the OT6-4's terminal. The whol e probe is supplied as one cable. 2. The type of temperature tran sport board illustrated in Figure 2[...]

UPS Multi-Modul e Installation 45 3.0 UPS M ULTI -M ODULE I NST ALLATION 3.1 General The installation of a multi-modu le UPS configurati on must follow the installation p rocedure for a sin- gle UPS module with the additional requ irements detailed in this chapter. In addition to the local EPO pu sh bu tton on the front panel of the UP S module (th[...]

UPS Multi-Modul e 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 th e parallel system. 3.2.1 Cabinet Inst allation Place the UPS modules sid[...]

UPS Multi-Modul e Installation 47 Figure 30 Dry cont act s, multiple UPS modules with distribution p anel 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 simi lar to that of single m odule sy stem. The Bypass and the Main input sources must be ref[...]

UPS Multi-Modul e Installation 48 3.2.4 Control Cables Intermodule Control Shielded and doubl e insulated control cables avai labl e in lengths of up to 30 meters must be intercon- nected in a ring co nfiguration be tween UPS module s as shown below. The parallel control board is mounted on the top, be hind protective cover of each UPS module (refe[...]

UPS Multi-Modul e Installation 49 3.3.3 Power Cables The wiring of power cables is simil ar to that of si n gle 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 bypass a nd the main inpu t sources must be refer[...]

UPS Multi-Modul e Installation 50 3.4 Dual Bus System 3.4.1 Cabinet Inst allation The Dual Bus System consists of two independent UP S configurations each consisting of one or more UPS modules. Dual Bus Systems are high av ailability configurations suit able for loads with multiple input terminals. For single input loa ds an optional Static Transfe[...]

UPS Multi-Modul e Installation 51 3.4.4 Control Wires For Liebert NX to NX dual bus configuration, in terconnect the optional DBS cable between any DBS ports of tw o parallel syst ems as illustr ated in Figure 34 . Figure 34 Connections of a typical dual bus syst em utilising Load Bus Synch 3.4.5 Extended Dual Bus Synchronization Option (DBS Interf[...]

External Optional Cabinets 52 4.0 E XTERNAL O PTIONAL C ABINET S 4.1 External Maintenance Byp ass Cabinets The bypass cabinet enables maintenance operati ons and repairs to be performed in full isolation while also allowing the disabling of e ach UPS with out affecting the ordinary operation of the system (depending on the redundancy level). The op[...]

External Optional Cabinets 53 EXT-Maint X3-1&2 on UPS Parallel Board M3 (leave open if n o ex te rn al byp as s s wi tch is us ed ). P ro - vides external ma in tenance bypass interlock protection for the UPS. Short circuit means external bypass closed. EXT-Out (X3-3&4) on UPS Parallel Board (l eave shorted if no external output switch is u[...]

External Optional Cabinets 54 Figure 38 Dual input external isolation transfor mer cabinet Figure 39 Output external isolation tra nsformer cabinet 4.4 T op Cable Entry Option Optional Top Cable entry cabinets ar e available for every range of UPS. Q1 Q3 Q5 X3 X1 CB T o Load UP S I nput Mains S upply 3P S upplied by O t her s I s olat ion T r ans f[...]

Installation Drawings 55 5.0 I NST ALLATION D RAWINGS Figure 40 Electrical connections N.O. V< N P 2 2 4 3 2 3 4 3 4 BFP-O BFP-S BFP-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 1 2 FUSE 1 T_OT AUX_O F_F AN 3 4 2 EPO-NO 1 3 EPO-NO 2 EPO-NC 1 EPO-NC BFP INV A[...]

Installation Drawings 56 Figure 41 General arrangement—30-4 0kV A UPS 1) Air inlet grille 2) Air outlet gri lle 3) Castors for manoev ring 4) Adjustable fixing feet 5) Se i s m ic an ch or s ( O ption al) 6) Cable entry 7) Fans 8) Operator control and display pane l All dimen sions are i n mm. 825[...]

Installation Drawings 57 Figure 42 Front vie w, door open30-40kV A NX Internal battery trays be hind cover 5x (159 x 364 x 685mm) HWD NXa 30-40 kV A Front View 1) Output Switch—Q5 2) Maintenance Bypass Switch—Q3 3) Bypass Input Switch—Q2 4) Mains Input Switch—Q1 5) Monitor Board—U2[...]

Installation Drawings 58 Figure 43 Cable terminal layout—30-40kV A NX 1) Main (Rectifier) connections (N1-U1-V1-W1) 2) Bypass conn ecti ons (N1-U3-V3-W3) 3) Output connectio ns (N2-U2-V2-W2) 4) B atter y con nect ions ( +/-) 4.1 > to internal battery 4.2 > to external battery 5) Earth Note 1: For split Bypass operation ensure that the b usb[...]

Installation Drawings 59 Figure 44 Location of p arallel logic board M3 and opt ions—30-40kV A NX Sk t Indicator Bt t 1. Parallel logic board 2 & 2a. Battery Ground Fault detection, optional 3. Battery start interface, optional Current T ransformer W1-A35S 20 21 2a 3 1 2[...]

Installation Drawings 60 Figure 45 Internal battery layout and co nnections—30-40kV A NX + + + + + + + + + + + + + 1) Internal battery Fus es (+/-) 2) Ebattery connections (+/-) 3) Cable entry 4) Rectifier fuses 5) Contactor All dimensions are in mm. 120.5 364 1 3 BATTER Y RED RED RED BLUE BLUE RED BLUE RED BLUE RED BLUE 38.5 38.5 38.5 38.5 36 BA[...]

Installation Drawings 61 Figure 46 General arrangement—60-8 0kV A NX 1) Ai r inl et g ril le 2) Air outlet gri lle 3) Ca stors for m anoevring 4) Adjustable fixing feet 5) Seis mic a nchor s (O ptio n) 6) Cable entry 7) Fans 8) Operator control and display panel All dimensions are in mm. FRO N T VIEW Section A-A TO P V I E W[...]

Installation Drawings 62 Figure 47 Front view doors open—6 0-80kV A NX 1) Parallel logic board 2) Monitor board 3) Batter y start Interface 4 and 4a) Battery Ground Fault detection (optional)[...]

Installation Drawings 63 Figure 48 Cable terminal layout—60-80kV A NX 1. Main (Rectifier) connections (N1-U1-V1-W1) 2. Bypass connection s (N1-U3-V3-W3) 3. Output connecti ons (N2-U2-V2-W2) 4. Battery connections (+ / -) 5. Earth 6. Mains Input isolator (Q1) 7. Bypass Input isolator (Q2) 8. Maintenance bypass isolator (Q3) 9. Output isolator ( Q5[...]

Installation Drawings 64 Figure 49 General arrangement—100- 120kV A 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 53 696 83 4 800 825 2 6[...]

Installation Drawings 65 Figure 50 Front vie w, door open—100-120kV A NX Figure 51 Parallel logic board location—100-1 20kV A NX 1) I nput s wi t c h (Q 1 ) 2) B yp as s s w i t ch (Q 2) 3 ) M a int e na nc e b y pa s s s wit c h ( Q 3 ) 4) O u t p u t s w it ch (Q 5) 5) Mo n i t or b o a r d U2 5 1 2 3 4 Parallel cable[...]

Installation Drawings 66 Figure 52 Cable terminal layout—100-1 20kV A NX Figure 53 General arrangement—140- 200kV A NX U1 V1 W1 U 1V 1W 1N 1 B a t t + B a t t - N 1 U 3V 3W 3U 2V 2W 2 N 2 Input Batt Bypass Output 1. Air inlet grille 2. Air outlet grille 3. Casters 4. Adjustable fixing feet 5. Seismic anchors (optional) 6. Cable entry 1 2 4 5 3[...]

Installation Drawings 67 Figure 54 Front vie w, door open—140-200kV A NX Figure 55 Parallel logic board location—140-2 00kV A NX 5 1 1. Input switch, Q1 2. Bypass switch, Q2 3. Maintenance bypass switch, Q3 4. Output switch, Q5 5. Monitor board, U2 3 2 4 Parallel Cable[...]

Installation Drawings 68 Figure 56 Cable terminal layout—140-2 00kV A NX U3 V3 W3 U2 V2 W2 N3 N1 W1 V1 U1 Bypass Main Input Output Battery[...]

Installation Drawings 69 Figure 57 Optional external Mainten ance Byp ass Cabinet, 600mm wide top cable entry 120x160 bottom cable entry 250x100 28,5 55 433 55 28,5 50 55 630 55 175 250 175 152,5 100 571,5 13 (12x) diameter 100 585 100 100 388 100 1600 824 600 50 120 260 120 50 190 160 474 Bottom Vie w Side View To p Vie w Front View[...]

Installation Drawings 70 Figure 58 Optional external Mainten ance Byp ass Cabinet, 800mm wide top cable entry 120x160 bottom cable entry 250x100 28,5 55 633 55 28,5 50 55 630 55 250 275 275 800 825 1600 100 585 100 100 588 100 165 100 559 100 50 120 460 120 50 145 140 539 13 (12x) diameter Bottom Vie w Side View Front View To p Vie w[...]

Installation Drawings 71 Figure 59 Optional External Maintenance Byp ass Cabinet, 850mm wide top cable entry 150x200 bottom cable entry 270x150 824 1800 100 585 100 100 638 100 850 28.5 55 683 55 28.5 50 55 55 630 290 270 290 150 152,5 13 (12x) diameter 56 150 438 150 56 145 200 479 Bottom Vie w Side View To p Vie w Front View[...]

Installation Drawings 72 Figure 60 Cabling diagram, 30-200kV A, MBP-T cabinet, configuration 1.1.1[...]

Installation Drawings 73 Figure 61 Cabling diagram, 30-200kV A, MBP-T cabinet, configuration 1.1.3[...]

Installation Drawings 74 Figure 62 Cabling diagram, 30-200kV A, MBP-T cabinet, configuration 1.1.5[...]

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 uninterru ptible power to the latter. The power from the UPS is free from voltage and frequency variati ons and from disturbances experienced at the Mains AC input supp ly. This is[...]

Operation 76 6.1.1 Split- Bypass I nput Figure 63 illustrates the Liebert NX UP S in what is known as the sp lit-bypass configuration wherein a separate power switch to a dedicated b y pass power source that al so feeds the maintenance bypass line connects the static bypass line. Where a se parate power source is not available, the by pass and rect[...]

Operation 77 6.2 Multi Module UPS—1+N Multi-module UP S are formed by several “si ngle un it” UPS modules to constitute “1+N”system where groups of one o r more, up to six, single unit s operate together fo r the purpose of providi ng additional power or reliability or both. The load is equally shared between an y paralleled UPS. Figure 6[...]

Operation 78 6.2.2 Requirement s for Paralleling of UPS Modules A group of paralleled modules behave as if it we re one large UPS with the advantage of presenting higher reliability . In order to assure that all modu les are equally utilis ed and to comply with rele vant wiring rules, the follow ing requirements apply: 1. All UPS modules m ust be o[...]

Operation 79 6.3.4 Byp ass Mode If the inverter overlo ad capacity is exceeded, or if the inverter becomes unavailable for any reas on, 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 the in verter be asynchronous with the bypass, 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 Acid (VRLA) batte rie s, maximum boost c[...]

Operating Pro ced ures 81 7.0 O PERATING P ROCEDURES 7.1 Introduction Following installa tion and commissioning by an au thorised service engineer, the UPS will operate in one of the modes described in 6.3 - Modes of Operatio n . This chapter descri be s the various proce- dures available f or the operator to intervene with the UPS mode of operatio[...]

Operating Pro ced ures 82 In multi-module systems — perform each step of the procedure in ev ery UPS module before proceed- ing to the next step. 1. Open the UPS door to gain a ccess to the main power switches. 2. Close Bypass input power switch Q2 and UPS output power swit ch Q5. Close also any external output isolation switches, where used. The[...]

Operating Pro ced ures 83 7.3 St artup into ECO Mode Applies only to a si ngle module UPS and when programmed by the commissio ning engineer to per- form ECO mode control of th e power delivered to the load. Follow 7.2 - Startup in Normal Mode and observe at the end of the procedure that the mi mic panel bypass indicato r remains green (i ndicating[...]

Operating Pro ced ures 84 7.5 UPS Self-T est The UPS test procedure checks the co ntrol functions of the UPS, the mimic flow chart LEDs and the audible alarm. This self- test is password controll ed and menu driven. It can be carried out from the UPS front panel by the operator and tak es 5 seconds. 7.5.1 UPS Self-T est Procedure 1. Select “Comma[...]

Operating Pro ced ures 85 7. Press the EPO (Emergency Power Of f) button at t he UPS front panel of this UPS module only . This will disable further Rectifie r, Inverter, Static Switch an d Battery operation. This will not affect the manual maint enance bypass power switch. 8. Open the Rectifie r input power swi tch Q1 and Sta tic bypass input p ow[...]

Operating Pro ced ures 86 7.7 Isolation of One Module in a Multi-Module System 7.7.1 Multi-Module Systems W ith External Output CB1 Figure 66 T ypical 1+N system block diagram with co mmon input supply , with sep arate batteries a nd optional output / by pass dis tribution p ane l 1. Turn Off inverte r. 2. Open External Output isolator (Q1ext or Q2[...]

Operating Pro ced ures 87 output becomes enabled but interlocking works now. 10. Turn On inverter and join the paralle l system. 7.7.2 Multi-Module System Without Exte rnal Output Circuit Breaker 1 This procedure is indica ted for isolation of one UP S module fro m other modules of a group of other- wise normally operating paralleled UPS modules. O[...]

Operating Pro ced ures 88 7.8 Insertion of One Module in a Multi-Module System This procedure is indicated to reintegrate a UPS modu le that has been previous ly isolated from other modules of a group of parall eled UPS modules. It is assumed that the installati on is complete, the sys- tem has been commissioned by auth orized personnel and the ext[...]

Operating Pro ced ures 89 7.9 Shut down Procedure—Comple te UPS and Load Shut down 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 wil l be removed from the load. In multi-module systems – perform each step of th e procedure in every UPS modu[...]

Operating Pro ced ures 90 7.1 1 Reset After Shut down fo r Emergency S top (EPO Ac tion) or Other Conditions Once all appro priate measures have been taken to corre ct the problem indicated by the a larm mes- sage appearin g on the operator cont rol panel displa y, carry out this procedure to restore the UP S to regular operation following an EPO a[...]

Operating Pro ced ures 91 7.13 Language Selection The LCD menus and data display are availa ble in 12 languages: Chinese, Dutch, English, French, German, Italian, Japanese, Polish, Portuguese, Ru ssian , Spanish and Swedish.To sele ct a different language tha n the one being displa yed: 1. From the main menu, press the F1 (shift) key to move the cu[...]

Operator Cont rol Panel and Displa y 92 8.0 O PERATOR C ONTROL P ANEL AND D ISPLAY 8.1 Introduction The operator control p anel and display is loca ted on the front door of the UPS. The panel is the access point for operator control and monitoring of all me asured parameters, UPS and battery status and of event and alarm logs. Figure 67 UPS control[...]

Operator Cont rol Panel and Displa y 93 8.1.1 Mimic Power Flow The LED mounted on the mimic flow chart represen t the various power paths and current UPS oper- ational status. 8.1.2 Audible Alarm (Buzzer) UPS activity is accompanied by the following sounds T able 13 Rectifier indicator— 1 Green Rectifier in Normal Operation Flashing Green Input A[...]

Operator Cont rol Panel and Displa y 94 8.1.3 Direct Access Push Buttons (Keys) Press and hold Direct Acce ss key briefly until acknowledged by a single beep. 8.1.4 LCD Monitor and Menu keys The user-friendly a nd menu-driven 32 0 x 240 dot graph ic LCD monitor display s real time data and at the same time stores 512 hist orical records that can re[...]

Operator Cont rol Panel and Displa y 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 a b o v e , p r e s s i n g F 1 m o v e s t h e c u r s o r ( r e s t i n g i n “ O U T P U T ” ) f r o m t h e UPS Menu Window (2) to current record window (4) where it would[...]

Operator Cont rol Panel and Displa y 96 8.1.5 Det ailed 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. Menu and Data Window Use the horizontal arrow [...]

Operator Cont rol Panel and Displa y 97 System Sout (kVA) Sout: App arent power Pout (kW) Pout: Active powe r Qout (kVAR) Qout: Reactive power Single unit, no paral lel data When configured as a single unit, UPS has only native load, no system load. Battery Battery voltage (V) Battery bus voltage Battery current (A) B attery bus current Battery tem[...]

Operator Cont rol Panel and Displa y 98 Current Record Window Keeps a log the eve nts that resulted in the current mode of operation. Ignores transient conditions that have been resol ved. Use “page” (F1) a nd up / down a rrow to read the eve nts. For a complete history log, refer to the Records tab of the Me nu and Data Wi ndow. Refer to Table[...]

Operator Cont rol Panel and Displa y 99 Bypass Unable to Trace This alarm is triggered by an inverter soft ware routine when the amplit ud e or frequency of bypass voltage is beyond th e normal ran ge. The amplitude threshold is fixe d for positive and negative 10% rating. This alarm automatically reset s once the bypass voltage goes normal. 1. Fir[...]

Operator Cont rol Panel and Displa y 100 System Over load The UPS parallel system is confirmed to ov erload when the total load arises above 105% nominal rating for th e set basic number of UPSs. The alarm automaticall y resets once the overload condition i s removed. 1. Confirm that the alarm is true by che cking the system load pe rcent indicated[...]

Operator Cont rol Panel and Displa y 101 Inv. turned Off Manua lly Manual Turn Of f via front panel EPO Emergency Power O ff direct access key pressed or external command received Transfer Confirm Prompt to press “en te r” key to acknowledge that an interrupte d load transfer to bypass will happen. Transfer Canc el Prompt to press “ESC” key[...]

Operator Cont rol Panel and Displa y 102 Auto start After UPS was shutdown at EOD, inverte r auto starts when utility restore REC FLASH UPDATE Rectifier firmware is being updated INV FLASH UPDATE Inverter firmwa re is being updated MONITOR FLASH UPDATE Monitor firmware is being up dated Input contactor fault Input cont actor fault Contactor P.S. 1 [...]

Operator Cont rol Panel and Displa y 103 8.3 Prompt (Pop-Up) Windows The prompt window is displayed duri ng the operation of the system to alert the user to certain condi- tions and / or to require user confirmation of a command. T able 24 Prompt windows, meanings Prompt Meaning Transfer w ith interrupt, plea se confirm or cancel Inverter and Bypas[...]

Operator Cont rol Panel and Displa y 104 8.4 Dynamic Energy Flow Chart and UPS Help Screen This screen displays a mimic diagra m of the UPS that includes energy flow and st atus of isolation and transfer switches. Press the Help ke y to activate this screen. Press ag ain to toggle between this screen and the main screen. Figure 70 Help screen 8.5 D[...]

Options—For Assembl y Inside the UPS Cabi net 105 9.0 O PTIONS —F OR A SSEMBLY I NSIDE THE UPS C ABINET Several items of optiona l equipment are available for connection to the Liebert NX UPS. These are described in this section of the ma nual and should be fitted prior to i nstallation. 9.1 Protection 9.1.1 Redundant Back-Feed Protection In ad[...]

Options—For Assembl y Inside the UPS Cabi net 106 Figure 72 Battery S tart Opt ion for UPS with external battery 9.1.5 Byp ass Current Sharing Inductors Applicable in para lleled UPS configurations t o ensure that the (passive) static bypass switches, when activated, share the load current. The inductors provide droop type current compensation fo[...]

Options—For Assembl y Inside the UPS Cabi net 107 Figure 73 Byp ass current sharing induct ances UPS 1 In p u t Ou t p u t S tati c S wi tch B ypass C urr ent Sharing I nduct . N U3 V3 W3 Q2 Q5 N2 U2 V2 W2[...]

Options—For Assembl y Inside the UPS Cabi net 108 9.1.6 Battery Ground Fault Detection In addition to any resi dual current device mounted externally and upstream the UPS or when optional isolation transformers are fitted to the UPS, an optional resid ual ba ttery current device can be fitted to detect leakage current from the battery into the PE[...]

Options—For Assembl y Inside the UPS Cabi net 109 9.1.7 Replacing Dust Filters Installing the two dust filters in the Lieb ert NX requires only a Phillips screwdriv er. 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 filters on the back si de of the front door (s[...]

Options—For Assembl y Inside the UPS Cabi net 110 9.2 Communication and Monitoring Figure 76 Communication bays and cable locat ion ( = Notes: a) All Intellislot cards are supported in any bay . b) Port sharing is: - PERMITTED between RS232-x DB9 devices and Relay / Multiport4 In tellislot cards (i .e., Serial Multilin k sof tware will work from [...]

Options—For Assembl y Inside the UPS Cabi net 111 9.2.1 OC Web Card - SNMP/HTTP Network Interface Card This network interface card prov ides all real-time data and status informat ion as SNMPv1 traps for connection to a 10/100-baseT Ethernet network and in addition the same card will also transmit the same status information and all mea sured par[...]

Options—For Assembl y Inside the UPS Cabi net 112 9.2.2 Relay Card The Relay card provides voltage-free contact closur es 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 computers (ad ditiona l cable required) and[...]

Options—For Assembl y Inside the UPS Cabi net 113 9.2.3 Multiport-4 Card The Multiport-4 card provides 4 sets o f voltage-fr ee contact closures for remo te monitoring of alarm conditions UPS operation On Battery and battery low condition. A typical application is to allows a maximum of four computer systems to simultaneously monitor the status ([...]

Options—For Assembl y Inside the UPS Cabi net 114 9.2.4 OC485 W eb Card – Modbus, Jbus, IGM Net The OpenComms 485 Card facilitates SiteScan We b or Buildin g Management Systems monitoring. The RS232 port is used for connection to a personal computer for settin g up. The RS-485 port supports IGM Net and Modbus/JBu s protocols and maps the operat[...]

T echnical Spec ifications 115 10.0 T ECHNICAL S PECIFICATIONS 10.1 Conformity and St andards The UPS has been designed to confor m to the following Euro pean and internation al standards: The above mentioned product standards incorporate relevant compliance clauses with generic IEC and EN standards for safety (I EC/EN/AS60950), electromagnetic emi[...]

T echnical Spec ifications 116 T able 34 Efficiency , AC/AC Input and output volt age 400V AC, 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) % 8 99 09 19 1 9 0 . 6 9 1 . 1 9 2 . 5 9 2 . 7 9 2 . 8 ECO Mode % 9 4 94. 8 94.3 95 95 9 5.6 95.5 95.7 95.7 Inverter[...]

T echnical Spec ifications 117 T able 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 Fl oat charge is 540V) Range: 400V ~ 600V Quantity of lead-acid cells Nominal — 240 = [40 x 6-cell (12V) blocks] Maximum — 252 = [42 x 6-cell (12V) blocks] Min[...]

T echnical Spec ifications 118 T able 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 11 2 128 160 Rated AC Voltage 1 V (ac) 380/400 / 415 V (three-phase, four-wire with neut ral ref erenced to the bypass n[...]

T echnical Spec ifications 119 T able 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 neut ral with the rectifier input and providing neutral reference to th e output Rated current 380V A 45 61 91 121 151 182 212 242 303 400V 43 58 87 116 145[...]

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