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Emerson 400V Power Supply User Manual

Contents

1. OF BLUE RED O Mm T BATTERY E S 9009 o o rua 5 8 slg 515 9 ON 1 3 1 120 5 L i 1 1 i BLUE RED lt 364 N T e T 38 5 BLUE rs e e ES s 385 niue RED T usw su en m z I 685 38 5 e E
2. 67 Installation Drawings Figure 56 Cable terminal layout 140 200kVA NX ve we wee T Main Input Output Battery 5050 50 346 304 82 68 Installation Drawings Figure 57 Optional external Maintenance Bypass Cabinet 600mm wide 00000 DUDU 160 top cable 190 entry 120x160 Ww 120 120 50 50_ 824 600 1600 388 100 100 100 585 _ 10
3. Parallel Cable B III
4. PAUUO s Parallel cable
5. FUS 4 1 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 gt to internal battery 4 2 gt to external battery 5 Earth Note 1 For split Bypass operation ensure that the busbars between Bypass and Rectifier input are removed All dimensions are in mm Cable connections 58 Installation Drawings Figure 44 Location of parallel logic board M3 and options 30 40kVA NX MN Current 1 Parallel logic board EL 21 MADE 2 amp 2a Battery Ground Fault detection optional 3 Battery start interface optional THU mu 9 w FU 59 Installation Drawings Figure 45 Internal battery layout and connections 30 40kVA NX
6. E i BLUE mu RED 1 Internal battery Fuses 2 Ebattery connections 3 Cable entry 4 Rectifier fuses 5 Contactor All dimensions are in mm 60 Installation Drawings Figure 46 General arrangement 60 80kVA NX cA Cm 00 gt 825 800 FRONT e FRONT VIEW 1376 1 i i 825 800 eo D dH es TOP VIEW 600 777 07 83 D REAR VIEW B 696 SIDE VIEW Base View Section YN x 158 1 Air inlet grille 2 Air outlet grille 3 Castors for manoevring 4 Adjustable fixing feet 5 Seismic anchors Option 6 Cable entry 7 Fans 8 Operator control and display panel A
7. se LLLI 3j 65 Installation Drawings Figure 52 Cable terminal layout 100 120kVA NX 01 V1 1 Batt N1 U3 W3 02 V2 W2 N2 Input Batt Bypass Output Figure 53 General arrangement 140 200kVA NX 100 1800 1 Air inlet grille 2 Air outlet grille 3 Casters 4 Adjustable fixing feet 5 Seismic anchors optional 6 Cable entry 66 Installation Drawings Figure 54 Front view door open 140 200kVA NX 5
8. 1 2 3 4 5 6 Air inlet grille Air outlet grille Castors Adjustable fixing feet Seismic anchors option Cable entry ek rad bebe aden most o e e e e e Tuy o 2 rer view Base view 64 Installation Drawings Figure 50 Front view door open 100 120kVA NX 5 1 Input switch Q1 2 Bypass switch Q2 3 Maintenance bypass 4 5 switch Q3 Output switch Q5 Monitor board U2 ra
9. 270 270 Bottom View Front View 24 Battery Installation Figure 10 Wide battery cabinet with fuse or optional circuit breaker locations 22 Output Fuses L busbar alternative connections s ey ae Battery Circuit Breaker L Top Cable su entry BCB controller board i m m ub Fixing Feet Bottom Cable entry 25 Battery Installation Figure 11 Large battery cabinet dimensions Top View 16 _ 300 660 i 300 116 1800 H 825 Side 130 2 270 691 1 d c Y Y j 1 LO LO 55 T 660 5 660 5 w 55 Bottom View 26 Battery Installation Figure 12 Large battery cabinet with fuse or optional circuit breaker locations Fuses alternative to BCB Output bu
10. Battery Installation 2 5 Battery Control The battery circuit breaker 1s 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 undervolt release coil and also provides a path for the circuit breaker auxiliary contacts to signal the circuit breaker status back to the UPS control logic Refer to Figure 25 connections between the controller board and the UPS unit are made via auxiliary terminal Block X3 BCB of the Monitor Board which is located at the rear of the door in the UPS Cabinet refer to 1 8 3 External Circuit Breaker Interface Battery temperature sensor cables are connected between UPS auxiliary terminal block X3 BCB the Battery Circuit Breaker controller board and the battery as shown in Figures 25 and 26 Cables connected to must contain a protective earth wire or a shield be segregated from power circuits double insulated and of a typical 0 5 to 1mm cross section area for maximum runs between 25 and 50 meters respectively The shield should be connected to the protective earth of the battery cabinet or battery breaker not at the UPS CAUTION UPS containing an internal automatic battery contactor do not require BCB board nor undervoltage control of the BCB In this
11. zr SALON ZOOM 5 1 Kei a acad 1 ui Z sake Kei pe Ger m 8 x gt lt g a ZOOM qi KU gt lt 5 1 5 1 o e N 3 gt 2 901 THX w s ss 1901X dake 7 19Ke1 Jered JaUIgeD eg 10 sjauuey gt duis MIA 1NOtid Jaysew Jaysew 7 Jaysew g Jakeq Jaysew cw uodsuen aNd 1n z ama 9 9 0 0 60 gt 25 ZZE Bee 801X C801X pieoq 528 YTX sS um 5 OR TUX TOEM LIX 5 SS SS 002 521 828 Sdn OL Sdn OL 35 Battery Installation Figure 21 SENXAONBCWXXALF 2x4 LE 00M 19e Kei 50621 01 00119 21 8 19 21 6919 99 99 02 01e OCC LS v 006 NOLE W OLZAZLHN 210 09576 papaau jou si gg y 104 uorpung all y
12. beris pue 39 Battery Circuit Breaker 40 2 6 1 Battery Temperature 1 43 UPS MULTI MODULE 5 45 General cbe ote cu E das euam edu dade sup e an tud e he 45 Paralleled UPS Modules 1 46 3 2 T Cabinet Installation zs eoe bot eo e ob e rto ie TO 46 9 2 2 External Protective 47 32238 Power Cable8o Yu a eg Pe este eaten robe Ra e ee ris 47 3 2 4 Control Caples ecce S Susu kasu s AS SAS ta ls eh etes ete 48 Hot Standby UPS Modules 48 3 81 Cabinet eee e a tete re de TED tte ee RE 48 3 3 2 External Protective 48 3 9 95 Power ua a aoa estt UR Spo QS sive ee Ng 49 Dual Bus System t uus e Ru IUUD RM RE Ie aS EA 50 3 4 1 Cabinet 50 3 4 2 External Protective 50 3 423 Power Cabl
13. 89 Reset After Shutdown for Emergency Stop EPO Action or Other Conditions 90 AU LO co seo m ee MS LAS em LENIN 90 Language Selection ved eR AER ER Uo Ps RUN us 91 Changing the Current Date and Time 91 Command Password i see a QUERY BSBA VCRBO UO UR 91 OPERATOR CONTROL PANEL AND DISPLAY 92 Introduction situ ev eet chica ats ep eT ___ __ __ 92 amp LI Mimic Power Flow reto reos Reed usce ete erc UE Rt ele ace e m A EE 93 8 1 2 Audible Alarm 7 93 8 1 3 Direct Access Push Buttons 94 8 1 4 LCD Monitor and Menu 2 27 94 8 1 5 Detailed Description of Menu 96 Status and Event Messages Displayed on the UPS Front Panel 98 iii 8 3 8 4 8 5 9 0 9 1 9 2 10 0 10 1 Prompt Pop Up 2 103 Dynamic Energy Flow Chart and UPS Help Screen 104 D fault Sereen Saver ere ECC ee A E a ad qh eas 104 OPTIONS FOR ASSEMBLY INSIDE THE UPS CABINET 105 Protections
14. 1 Input switch Q1 2 Bypass switch Q2 3 Maintenance bypass switch Q3 4 Output switch Q5 5 Monitor board U2 5
15. 68 Optional external Maintenance Bypass Cabinet 600mm 69 Optional external Maintenance Bypass Cabinet 800mm 70 Optional External Maintenance Bypass Cabinet 850mm wide 71 Cabling diagram 30 200kVA cabinet configuration 1 1 1 72 Cabling diagram 30 200kVA cabinet configuration 1 1 8 73 Cabling diagram 30 200kVA cabinet configuration 1 1 5 74 Single unit block diagram with split bypass 1 75 1 N multi module UPS with external maintenance bypass switch 77 Example of configuration for single UPS with external Maintenance Bypass Cabinet 85 Typical 1 N system block diagram with common input supply with separate batteries and optional output bypass distribution 1 86 UPS control and display 1 4 92 Graphic LCD monitor windows and 94 a daca oae tau acd 95 He lp screen t eet e RUE D a E ua 104 Default screenm os etes rera rete na ee gea 104 Battery Start Option for
16. e S Ne US VOR 17 Salebys vto dev ratem Sewer ve e dr ir ps te OY 18 Battery Cabinet zu aser a s d BS OR Gat a 18 Jntroduction ere re RP 18 2 8 2 Temperature 19 2 9 9 DIMENSIONS io RARE RD me Pg e dd s e 19 2 94 eoe e Lee Seat ce NS eO ee Be RI I I che ERROR dew n ce po s 19 2 8 5 Circuit Breaker 1 19 2 3 6 Moving the Battery 20 2 81 seu NN PERPE a 20 2 8 8 General Arrangement 21 2 4 2 5 2 6 3 0 3 1 3 2 3 3 3 4 4 0 4 1 4 2 4 3 4 4 5 0 6 0 6 1 6 2 Battery Power eG up e e AMNIS ed Reh nd ies 38 2 4 1 Connection 38 2 4 2 Fitting the 2 38 2 4 8 Connecting the Battery 7 38 2 4 4 Battery Room 1 38 Battery
17. I 9 5 O O O o o Qo 25 RD p s 5 e ie ud es Q 92 9 es 5 54 6 Si 6 5 eel 0 I re 6 24 On 25 50 CORO 221 exe 521 5555955 OSORO i o 6 Q z Reco e gt e s De 6 Q 224 see exe ORO wS CC eor dii 620 0258 8282624 T 524 e 29 50 ORORO Q 5 Q Q Q Q Q ev e 8 er o e e e 25 e 8 AA 6 Q Q 174 Q alle D 24 5250 Q Q Q Q S ORU 8 52200 4 558 194 5 5 5 8 qox ax cx oom qc DO dfe Le e G2 Qs a IG 36 36 36 34 5 25 p
18. Rated Cabinet Weight Rated Service Uninterrupted External Cabinet Without Batteries Model UPS Ratings Current In Current IU WxDxH mm in kg Ib Narrow 40kVA 125A 160A 828x825x1600 200 441 Cabinet 60kVA 200A 250A 32 6 32 4 63 80kVA Wide 40kVA 125A 160A 1490x825x1600 270 595 Cabinet 60kVA 200A 250A 58 7 32 4 63 80kVA 100kVA Large AAA 400A 400A 1490x825x1800 wka Cabinet 500A 500A 58 7x32 4x76 9 160kVA 200k VA Circuit Breaker Features In 30 to 40kVA models fitted with internal battery and in all models fitted with a Battery Start kit the UPS is fitted with an internal contactor for automatic connection and disconnection of the batter ies External battery banks connected to such models generally are protected by a standard battery circuit breaker with status contacts and without undervoltage trip coil Refer to 2 5 Battery Con trol for details When no internal contactor for automatic disconnection is installed in the UPS module the external battery disconnection is performed by fitting a Circuit Breaker Controller Board and an undervoltage coil to the battery circuit breaker The circuit breaker can then be manually closed once the DC busbar is above the low battery trip voltage Once closed the circuit breaker can be opened manually at any time and is tripped automat ically by the UPS module following certain fault occurrences an emergency p
19. Large battery cabinet with fuse or optional circuit breaker asua De e eere eee RU et ee eds SENXAONBONALE tous x ee ER e e geht Ea e gant Bs SENXAONBONDLGOB 25 eee eae s eere as She tree leote Ig SENXAONBONDOLE eS RD td Bu ee ea dat s ot era eh eth Pats e So BG SENXAONBCWXXOLE L ul yu eue e ARN a de t e ee der SENXAONBCWXXALCB 9 4 2 4 7 SENXAONBCWXXALCB 4 2 2 SENXAONBCWXXALF 4 1 2 1 4 1 SENXAONBCWXXALF 4 2 2 4 Battery room design z yaaa Eb ex ted e e cde UY re aca TRIS EU Battery circuit breaker box 30 120kVA and 140 200 Battery circuit breaker box connection 4 Single temperature sensor and monitor 02 Multiple temperature sensors battery circuit breaker box and UPS module Emergency power off connections Typical 1 N system block diagram with common in
20. Gjexpense 34 Z 08 78107 amp 1229 Figure 78 OC Web Card battery data summary Liebert OpenComms Web Card Microsoft Internet Explorer File Edit Favorites Tools Help e Back Forward Stop Refresh 2 Favorites Mail Edit EMERSON Network Power monitor configure support Battery Updated July 13 2004 12 34 05PM e rai ell Le e 22130 s Supported Status Value Units Battery Time Remaining 563 Battery Voltage 546 9 v Battery Current Charge Discharge D2A Battery Charge Percentage 99 96 Battery Temperature 24 3 Battery Charge Compensation False Battery Test Result Unknown Battery Charge Mode Float Supported Alarms Status Battery Under Test Normal Load On Battery Normal Charger Failed Normal Low Battery Shutdown Imminent Normal Battery Fault Normal Battery Contact Fail Normal Battery Converter Over Temperature Normal Battery Converter Over Current Normal Battery Converter Fail Normal UPS Load Joint Mode Normal Supported Settinqs Value Units f Ptpsf 142 100 150 244 monitor upsBattery htm 4 A 5 Per tens e eo S vta marcas J epense Rlmerosorte Ejuieberto 38 SCEUROU 12 34 111 Options For Assembly Inside the UP
21. 2 uosi puy Jejseuu Jake Jejseuu Z dake Jaysew JoKe1 Jaysew 18 081 02144 08828 OL 0882801 VOOCNOCI dMd 900 69574 uuewssng vOOM SOOM 00 Jojauuoo Uosiapuy 099 081 02194 37 Battery Installation 2 4 2 4 1 2 4 2 2 4 3 2 4 4 Battery Power Cables 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 Fitting the Batteries 1 2 In general at least 10mm 3 8 must be left unobstructed on all vertical sides of the battery blocks to permit free air movement around the cells Clearance should be allowed between the top of the cells and the underside of the shelf above this is necessary for monitoring and servicing the cells When installing the batteries on racks always work from the bottom shelf upwards to prevent raising the centre of gravity Connecting the Battery 1 When the battery cabinet is installed on a raised floor the battery power cables and optional circuit breaker control cables can be routed to the UPS cabinet via the floor of the cabinet If the UPS and battery cabinet are located adjacent to each other and located on a solid floor these cables can be passed between the cabinets via the lifting apertu
22. Top plate Hinged door Standard cable entry is from bottom side The baseplate can be rotated to permit top cable entry 41 Battery Installation Figure 25 Battery circuit breaker box connection Temp Sensor 12V O3 out 64 GND Auxiliary Contactor NOTES Q 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 I DRV 2 AUX 3 GND1 4 USE refer to Table 11 for full X102 label descriptions 4 X101 HAZARDOUS VOLTAGE do not connect to battery bus before authorised by the commissioning engineer 5 103 106 are for connecting temperature sensors from multiple battery cabinets 42 Battery Installation 2 6 1 Table 11 Battery control label description X102 BCBB Monitor Bd X 102 Reference Ref Label Label Description Signal status 1 DRV DRV Battery circuit breaker tripping Normal H level voltage can close control signal from UPS Abnormal L level voltage BCB trips Bat CB auxiliary status contact Normal OV when is closed 2 IN AUX BCB X3 FB IN Open contact CB open Abnormal open when BCB is open on U2 Monitor N OV the BOB Board isi board OL Bat CB Board status signal Sua kaq Reg 4 05 On Ling GND OV from BCB Bd open the BCB Board is not 3 GND1 GN
23. 104 Options For Assembly Inside the UPS Cabinet 9 0 OPTIONS FOR ASSEMBLY INSIDE THE UPS CABINET 9 1 9 1 1 9 1 2 9 1 4 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 Protection Redundant Back Feed Protection In addition to the dry output back feed protection contact provided for tripping of an external circuit breaker upon a shorted static bypass semiconductor condition refer to 1 8 4 Output Dry Con tacts an optional contactor can be fitted in series with bypass semiconductors SCR in order to pro vide air gap isolation between upstream of the UPS input bypass mains and the Inverter output The power supply to the coil of contactor is taken from the bypass mains input line voltage When the bypass mains input is unavailable the contactor is opened and the UPS is disconnected from the bypass mains supply Seismic Anchors Seismic anchors avoid or lessen the damage caused by a possible earthquake or vibration and ensure that the UPS does not overturn or move laterally under such a situation Table25 Seismic anchor sizing UPS 30 120kVA Anchor Width mm in 500 19 7 Anchor Length mm in 83 3 3 140 200kVA 750 29 5 83 3 3 The Seismic Anchor classification when bolted into a suitable concrete slab exceeds the requirement
24. BEDE A EUR 76 Multi Module UPS 1 cN i ec e I Re Ren Ie y per Eee Ed eed dees 77 6 2 1 Features of NX Multi Module UPS 77 6 2 2 Requirements for Paralleling of UPS 78 if 6 3 6 4 6 5 7 0 7 1 7 2 7 8 7 4 7 5 7 6 7 7 7 8 7 9 7 10 7 11 7 12 7 13 7 14 7 15 8 0 8 1 8 2 NMlod s ot Operationer Nes sb pip es place bP pg Dat 78 6 341 Mode e muyay Z Pu sup ha kia pile apika Ru 78 6 3 2 Battery Mode Stored Energy 78 6 8 8 Auto Restart 1 7 1 18 6 84 Bypass Mode ooo VE NOE 79 6 3 5 Maintenance Mode Manual Bypass 79 6 3 6 Mode Single UPS 2 79 6 3 7 Parallel Redundancy Mode System Expansion 79 6 3 8 Hot Standby 4 79 6 3 9 Frequency Converter 79 6 3 10 Source Share Mode 79 Battery Management Set During Commis
25. Rotary Sw Normal Pos Rotary switch is in normal position Rotary Sw Bypass Pos Rotary switch is in bypass position Rotary Sw Maint Pos Rotary switch is in maintenance position Battery Contactor Open Battery Contactor Open Battery Contactor Close Battery Contactor Closed Battery Reverse Connect the battery again and check the wiring of batteries No Battery Check the battery and the wiring of batteries 101 Operator Control Panel and Display Table 23 UPS messages Message Description Suggested Action if any Auto start After UPS was shutdown at EOD inverter auto starts when utility restore REC FLASH UPDATE Rectifier firmware is being updated INV FLASH UPDATE Inverter firmware is being updated MONITOR FLASH UPDATE Monitor firmware is being updated Input contactor fault Input contactor fault Contactor P S 1 fault Contactor Power Supply board 1 Fault Contactor P S 2 fault Contactor Power Supply board 2 Fault LBS abnormal LBS is abnormal DSP firmware error The inverter firmware does not match with the rectifier firmware Input Fuse Fail Internal AC Input Fuse to Rectifier Failed Rectifier shuts down Battery discharges Not applicable for 30 40kVA models Input Disconnect Open AC mains input power switch open Input Disconnect Closed AC mains input power switch closed Mai
26. and options 30 40kVA Internal battery layout and connections 30 40KVA General arrangement 60 80kVA Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 Figure 74 Figure 75 Figure 76 Figure 77 Figure 78 Figure 79 Figure 80 Front view doors open 60 80kVA 62 Cable terminallayout 60 80kVA 63 General arrangement 100 120kVA 64 Front view door open 100 120kVA 65 Parallel logic board location 100 120KVA 65 Cable terminal layout 100 120kVA 66 General arrangement 140 200KVA 66 Front view door open 140 200kVA 67 Parallel logic board location 140 200KVA 67 Cable terminal layout 140 200kVA
27. used on the input and refer to the relative IT Systems standard WARNING Battery Hazards Special care should be taken when working with the batteries associated with this equipment When connected together the battery terminal voltage will exceed 400VDC and is hazardous Eye protection should be worn to prevent injury from accidental electrical arcs Remove rings watches and all other metal objects Use only tools with insulated handles Wear rubber gloves If a battery leaks electrolyte or 15 otherwise physically damaged it must be replaced stored in a container resistant to sulfuric acid and disposed of in accordance with local regulations If electrolyte comes into contact with the skin the affected area should be washed immediately with water Preliminary Checks Before installing the UPS please carry out the following preliminary checks 1 Visually examine the UPS and battery equipment for transit damage both internally and externally Report any damage to the shipper immediately 2 Verify that the correct equipment is being installed The equipment supplied has an identification tag on the back of the main door reporting the type size and main calibration parameters of the UPS Single Module UPS Installation 1 3 1 3 1 1 3 2 1 3 3 Location 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 adequat
28. medie e LO 8 L 100 2 BOTTOM VIEW 2 BACK VIEW SIDE VIEW 21 Battery Installation Figure7 Narrow battery cabinet with top cable entry location Top Cable Entry 100x250 mm sz 3 9x9 8 96 5 Front 3 8 Front Front 22 Battery Installation Figure8 Wide battery cabinet with top and bottom cable entry locations 21600 825 T 603 603 s Side View b Side View Front View L 1490 Top View 55 1 E 630 SS aS 55 Hi LE 1 m 1321 55 Bottom View 23 Battery Installation Figure 9 Wide battery cabinet with bottom cable entry location 150 150
29. 21718 081 0 149 1 0194 101290002 uosjepuy 34 08 10129UU0 UosJapuy 00 29 Battery Installation Figure 15 SENXAONBCNSLCB y 1 MAIA LNOYS 1o e ut Ke 101M papaau JOU si gg Jeujaqur 31 10 uonunj eseajai ay jluwue lN paeoq 04002 gg Ula 0 p l2 uuo2 q p nous saqe uodsuei duis pesn pieog ouo euis 942210 suorpnunsui Jasn 08 428 0113J31 aseajd 310N p yodsuen dwa euiqe Weg 10 pa asa sjauuetp dui pieoq onuo gg Sdn OL TOOLX H 018 WIM 54001 002 521 828 30 Battery Installation Figure 16 SENXAONBCNSLF Tray in Layer 3 BJ 5 E 3 5 gt 5 E 5 M 3 5 gt gt 5 2 s gt 10129UU0 uosJapuy YOV18081 02 Ldd SOOM 900M TO BCB BOX 59574 uueuissng 002 021 4 4 00 300 uosjepuy 34 081 02144 TO BCB BOX 1 When fuses are used for overcurrent protection the temp signals shall go directly to the 2 Used for UH12V100 A NPX 150 NPL24 12 38 12 512 38 12XLB150 P12V570 875 L12V32 NOTE 31 Battery Installation Figure 17 SENXAONBCWXXS3LCB D D LOpM
30. 805 70 01 V1 N1 Batt N1 U3 V3 W3 02 V2 W2 2 Input Batt Bypass Output 1 Main Rectifier connections N1 U1 V1 W1 6 Mains Input isolator Q1 2 Bypass connections N1 U3 V3 W3 7 Bypass Input isolator Q2 3 Output connections N2 U2 V2 W2 8 Maintenance bypass isolator Q3 4 Battery connections 9 Output isolator Q5 5 Earth NOTE 1 For split bypass operation ensure that the busbars between bypass and rectifier input are removed 2 All dimensions are in millimeters 63 Installation Drawings Figure 49 General arrangement 100 120kVA NX 825 800 700 e 1800
31. AC Power For Business Critical Continuity Liebert User Manual 50 and 60 Hz 30 200kVA 400V 5 Liebert EMERSON Network Power 1 0 11 1 2 1 3 1 4 1 5 1 6 122 1 8 2 0 2 1 2 2 2 8 TABLE OF CONTENTS SINGLE MODULE UPS INSTALLATION 1 3 Introduction ee ey panes E 3 Preliminary Checks se eh ee ete en RR ERE ER EN Ee 3 OC AUTOM aran S 4 lh URS ges eet Ru M EE DEI EM b EE EM PRU UE RE 4 1 8 2 External Battery Room 4 4 18582 Storan E oco teo pes ER PEE ip UU NUN IEEE S e d at s M IH RD patera 4 PosttlonIng rues a Sees 5 Tul System Cabinets VE ec eleg i 5 LAZ 30 10 40EV AU Pra ria Se E a eee ee ee oat 5 LAS Caza suum puka igre ROWE UT odes rss 5 14 4 Moving the Cabinet secs e SUE led aov Pied Sene 5 14 5 Cleatances ecu es 6 146 ACCESS ilana ccc 6 14 Final Position ngs dedo eR gu UM eed ha La tee 4 6 14 8 anu eee a bes yeso ale amp tec Detur M e ue 6 1 4 9 Cable
32. M 100M 1 LOpM LOOM u LOOM LOOM TOOM ZOOM 99 10 956 papaau 10051926 au 10 uoun aseajal 0 02 628 0 parauuoo p nous 0 4 04 jo Uo ou J 7 Uorauuo 2 48210 lt 0 9 5 195 08 gg 01 19 2 aseajd D 10D 100M LOpM z 4ahe7 LOLM LOOM LODM a g 1 ON NIA LNOYS 1 sake 1 z19Ke1 dake odsuen du 8 88 801X C801X pieoq 010 999 Em 1001X T001X 001 101X 001 002 521 828 Sdn OL 5401 32 Battery Installation Figure 18 SENXAONBCWXX3LF MAIA LNOYS 790 ZE Z LYW 10 p sn E Jaysew 13407 papaau jou si 979 10 UOUN aseajal au e uwuea y pieoq 04402 979 Jeuraa 01 aq p nous Sa
33. Remove rings watches necklaces bracelets and all other metal objects Use only tools with insulated handles Wear rubber gloves and a rubber apron when handling batteries Ifa battery leaks electrolyte or is otherwise damaged it should be placed in a container resistant to sulfuric acid and disposed of in accordance with local regulations If electrolyte comes into contact with the skin the affected area should be washed immedi ately with plenty of clean water Batteries must always be disposed of according to local environmental laws When replacing batteries use the same number and type that were originally fitted Disconnect charging source before connecting or disconnecting battery terminals Determine whether the battery is inadvertently grounded If it is inadvertently grounded remove the source of the ground Contact with any part of a grounded battery can result in electrical shock Battery Cabinet Introduction This cabinet can also be used in conjunction additional cabinets to provide the necessary accommoda tion required by the larger cells associated with system s having a long autonomy time Where two or more cabinets are used they are positioned alongside each other and secured and bonded together If the cabinet s is located immediately adjacent to the main UPS equipment the two units are bolted together 18 Battery Installation 2 3 2 2 3 3 2 3 4 2 3 5 Temperature Consi
34. 45 fei 0621 21 OOL TUN CL 8 NC LI S9 14N 99 S9 05 Lev 0LE OZC C Id v 008 V 0 W OLE V OLTATLHN paste papaau JOU si gg Ay 10 uonuny aseajai ellou pun aU alIyMuUeayy ouo 978 0 parauuoo aq pinoys sajqeo duu pasn peog 04002 ou J 7 Uoneuuoo a qe 104 suonaninsul JASN 08 979 01 J3ja 958914 LON 101 seyseuyheay 7 Kei aaysew v sae ut MAIA 5 Jaysew sake 5 Jayseu 7 19Ke1 dake 1 35 Jakeq 1 35 y dake 5 901 TOOLX 1901 ESOL 1 501 LHOlX 01 C 01X VOIX TOEM 1101 LOEM au 002 521 828 C801X pleog 04102 999 st 5401 5401 34 Battery Installation 013 98 2 17 40 p pa u jou si 82 8 eu JO uonpunj aseje eu peoq 0002 gog euiajxe 0 pejoeuuoo eq pinous 59182 dwa pasn 04102 ou Z 101291102 ejqeo 10 suononisui YO 909 0 19 91 eseg d L Kei
35. Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 FIGURES Model number 1 1 Residual current circuit breakers RCCB symbols Monitoring board U2 auxiliary terminal block contacts v ones poe ay oC On ati ERO PME EA E ie Pese m a Output dry contacts and EPO wiring for firmware before 162 EPO wiring for firmware M200 or later 4 Narrow battery cabinet with top and bottom cable entry Narrow battery cabinet with top cable entry location Wide battery cabinet with top and bottom cable entry Wide battery cabinet with bottom cable entry location Wide battery cabinet with fuse or optional circuit breaker locations Large battery cabinet dimensions
36. atxr as QUPS 2 avr Distribution Cabinet s To Load 1 Turn inverter Open External Output isolator Q1ext or Q2ext The UPS enters Isolation Status automatically parallel signaling and communication becomes masked and output becomes inhibited Power Off unit for maintenance Power On unit Unit enters Test Mode by configuration software setting Diagonosis or testing The UPS exits Test Mode by configuration software setting Output becomes inhabited because of Isolation Status Return all switches to the Normal position Close External Output isolator Qlext or Q2ext The UPS exits Isolation Status automatically parallel signaling and communication recovers eo 5959 86 Operating Procedures 7 7 2 output becomes enabled but interlocking works now 10 Turn On inverter and join the parallel system 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 normally operating paralleled UPS modules Only the power switches isolators and circuit breakers in the module to be isolated will be opened This procedure does not require the supply of any bypass power to the critical load 1 Turn the inverter 2 Open Internal Output isolator Q5 but keep Internal Maintenance Circuit Breaker open The UPS e
37. ore aaa an Su d bod D b dedo tbt Tub ode de sedute redd 6 External Protective Devices i obeunt WIS NE L n 6 1 5 1 Rectifier and Bypass Input 7 1 5 2 External Battery iov odes is woe ale ix chee p EE vole othe a ais note oe ed 7 12598 5 2 Wea Gram ees 7 Power Cables aa eR b paco bina eg agb 8 Eet Cable p u kusa tC ee eene f v CQ E vete du 9 Control Cables and 11 144 Monitor Board e er at ee a 11 Dry Contact ss war cere uluya a _ reete Ta Me Bote 12 1 81 Input SN Renee oo eus Rb a els RO SURREY td 12 1 8 2 Maintenance Bypass Cabinet Interface 13 1 8 8 External Circuit Breaker 13 18 4 Output Dry Contacts ess eee e er Ree E rece e rs cU E RE 14 1 85 Emergency Power Off 14 1 8 6 External Bypass Switch 16 BATTERY D B RR 17 Introduction
38. 4 6 1 5 6 1 6 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 source is not available the bypass and rectifier input supply connections are linked Static Transfer Switch The circuit blocks labeled Static Switch in Figure 63 contain electronically controlled switching cir cuits that enable the critical load to be connected to either the inverter output or to a bypass power source via the static bypass line During normal system operation the load is connected to the inverter but in the event of a UPS overload or inverter failure the load is automatically transferred to the static bypass line To provide a clean no break load transfer between the inverter output and static bypass line the static switch activates connecting the load to bypass To achieve this the inverter output and bypass supply must be fully synchronized during normal operating conditions This is achieved through the inverter control electronics which make the inverter frequency track that of the static bypass supply provided that the bypass remains within an acceptable frequency window A manually controlled maintenance bypass supply is incorporated into the UPS design It enables the critical load to be powered from the utility byp
39. ALL power to the UPS open the upstream feeder breaker s when the remote EPO is activated NOTE N Normally closed EPO X2 1 2 these terminals are supplied factory linked on the monitor board and must remain installed if using NC contacts auxiliary cables of terminal must be double insulated Wire should be 0 5 1 5mm 16 20AWG stranded for maximum runs between 25 and 50 meters 82 164ft respectively X5 Auxiliary DC Power Output Auxiliary DC power for modem or external SNMP card The voltage is between 9V to 12V The maxi mum current is 500mA X6 Analog Input Interface Two analog signal channels with an input range is from 0 to 12V The precision of detection is 4396 X6 pin 1 Not used X6 pin 2 12V X6 pin 3 environment temperature detection X6 pin 4 GND X7 External Battery Temperature Detector Interface Interface for TMP12Z temperature detector normally connected to an external battery cabinet see Figure 26 Pin reference X7 pin 1 Not used X7 pin 2 12V Power supply for Temperature Monitoring Probe X7 pin 3 BAT T Battery Temperature signal X pin 4 GND 15 Single Module UPS Installation 1 8 6 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
40. E ___ 1 1 J13 421 J25 J28 J4 J26 J30 J10 eee 085983 EPO Dry In MBC BCB SEE MINY AGE is The black square g x1 X2 x3 on each slot indicates Pin 1 11 Single Module UPS Installation 1 8 1 8 1 Dry Contacts The UPS provides input dry contacts and output dry contacts 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 accepts external signalling from voltage free dry contacts connected to finger proof push in terminal X3 IN DRY Subject to prior software programming the signalling is accepted by the UPS when connection between the relevant terminal and the 12V terminal is altered Cables connected to X3 IN DRY must be segregated from power circuits for screening purposes double insulated and of a typical 0 5 to 1mm cross section area for maximum runs between 25 and 50 meters 82 164 ft respectively Figure3 Input dry contacts 12V Table 3 Input dry contacts at X3 Position Name Description J4 1 ENV Battery Room Alarm NC J4 2 BtG Battery Ground Fault Detection NC J4 3 GEN On Generator NO J4 4 12V 12V Power 1 Must be configured by configuration software before becoming active 2 When activated the charger current can be limited via software to a percentage of the full
41. Frequency Hz Input frequency input L L voltage v Line line voltage Power factor Power factor L N voltage V Phase voltage TX Input L L voltage V Line line voltage L N voltage V Phase voltage Bypass Frequency Hz Bypass frequency L L voltage A Line line voltage L N voltage V Phase voltage L N current A Phase current Output Frequency Hz Input frequency L L voltage V Line line voltage Power factor Power factor L N voltage V Phase voltage TX Output a L L voltage V Line line voltage Sout kVA Sout Apparent power Pout kW Pout Active power Load Qout Qout Reactive power Loadlevel The percent of the UPS rating load Crest factor Output current Crest Factor 96 Operator Control Panel and Display Table 22 Descriptions of UPS menus and data window items continued Menu Type Item Type Explanation Sout kVA Sout Apparent power Pout kW Pout Active power System Qout Qout Reactive power Single unit no parallel data cae configured as a single unit UPS has only native load no system Battery voltage V Battery bus voltage Battery current A Battery bus current Battery temperature C Internal battery temperature C Batiery Remain Time Min Battery run time remaining Battery capacity Percentage of battery life remaining Battery boost charging Battery is boost charging Battery float charging Battery is float charging Battery disconnected Ba
42. Load indicator 5 Green UPS output ON and Normal Red UPS output ON and Overloaded Off UPS output OFF Table 18 Status Alarm indicator 6 Green Normal Operation Yellow UPS Warning e g AC Input Failure Red UPS fault e g Fuse or Hardware failure Audible Alarm Buzzer UPS activity is accompanied by the following sounds Table 19 Audible alarm key Single beep Direct Access key acknowledgement One beep UPS Warning e g AC Input Failure per second Continuous Fault e g Fuse or Hardware failure beep 93 Operator Control Panel and Display 8 1 3 Direct Access Push Buttons Keys Emergency Power Off EPO 2 the Load Disables rectifier inverter static bypass Inverter ON Enables Inverter Operation Inverter OFF Disables Inverter Operation Fault clear Resets blocked UPS functions subject to any fault being cleared Silence ON OFF Toggle type buzzer mute Any new fault re enables the buzzer 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 stores 512 historical records that can retrieve for reference and diagnosis The user can perform commands or easily browse through the input output load and battery param eters For quick reference the UPS status and
43. Tolerance AC t5 Factory set to 400V 380 or 415V selectable by commissioning engineer EN 50091 3 1 4 50 Crest factor 3 1 limited by IEC 62040 3 definition of non linear load EN 50091 3 4 3 4 half a cycle Factory set to 50Hz 60 Hz selectable by commissioning engineer Frequency converter operation also selectable EN 50091 3 4 3 7 also for 0 100 0 load transient Transient recovery time return to within 5 of steady state output voltage within 118 Technical Specifications Table 39 Bypass input Unit of Rated Power kVA Measurement 30 40 60 80 100 120 140 160 200 380 400 415 V Rated AC Voltage V ac three phase four wire sharing neutral with the rectifier input and providing neutral reference to the output Rated current 380V A 45 61 91 121 151 182 212 242 303 400V 43 58 87 116 145 174 202 230 288 415V 42 56 83 111 139 167 194 222 278 135 long term 12596 long term Overload capacity 96 170 10 min 150 10 min 100096 100 ms 100096 100 ms Upstream protection bypass Thermomagnetic circuit breaker rated up to 12596 of nominal output line by others current IEC 60947 2 curve C Current rating of neutral cable A 1 7 In 1 521 1 35In Frequency Hz 50 60 Synchronous transfer lt 1ms ms Asynchronous transfer default 15 ms 50 Hz 13 3 ms 60 Hz or 40 60 80 100 ms selectable Upper lim
44. WxLxH mm in Value uH 30 40 kVA 252 55 122 60 80 Seis ovr 65 100 120kVA 309990 40 140 160kVA 254 26 200KVA 5x9 4 22 Three bypass current sharing inductors are assembled within each UPS cabinet without requirement of additional footprint The resulting degree of unbalance is typically less than 20 of the rated sys tem current depending on the external cable configuration Cable lengths from the Bypass supply to each UPS module and from the UPS module output to the paralleling point should be kept as identi cal as possible 106 Options For Assembly Inside the UPS Cabinet Figure 73 Bypass current sharing inductances Bypass Current Static Switch Sharing Induct 107 Options For Assembly Inside the UPS Cabinet 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 leakage current from the battery into the PE Protective Earth Residual current range monitored 30 3000mA Power supply voltage for the set AC230V L N When a battery ground fault is detected an alarm will appear on the UPS display panel An additional Dry contact fault Alarm signal is available for remote monitoring Table 27 Dry contact fault alarm signal is available for remote monitoring Termi
45. a normal installation the battery temperature 16 main tained between 15 C and 25 C 59 and 77 F Keep batteries away from main heat sources or main air inlets etc Where the batteries are located externally to the main UPS cabinet a battery protection device e g fuses or circuit breakers must be mounted as close as possible to the batteries themselves and connected using the most direct route possible Storage Should the equipment not be installed immediately it must be stored in a room for protection against excessive humidity and or heat sources see Table 33 CAUTION An unused battery must be recharged periodically per battery manufacturer recommendation Temporarily connecting the UPS to a suitable AC supply mains and activating it for the time required for recharging the batteries can achieve this Single Module UPS Installation 1 4 1 4 1 1 4 2 1 4 3 1 4 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 Easy connection Enough space to easily work on the UPS Sufficient air exchange of enough to dispel heat produced by UPS Protection against atmospheric agents Protection against excessive humidity and very high heat sources Protection against dust Compliance with the
46. and rectifier inputs connect the AC input supply cables between the mains distribution panel and the UPS input U1 V1 W1 N terminals and tighten the connections to 5Nm for M6 bolts to 13Nm for M8 bolts or to 26Nm for M10 bolts Ensure correct phase rotation Split Bypass Connections 5 Ifa split bypass configuration is used connect the AC input supply cables to the rectifier input busbars U1 V1 W1 N terminals and the AC bypass supply cables to the bypass input U3 V3 W3 N terminals and tighten the connections to 5Nm for M6 bolts 13Nm for M8 bolts or to 26Nm M10 bolt Ensure correct phase rotation For split bypass operation ensure that the linking busbars between bypass and rectifier input are removed The AC input and the AC bypass supplies must be referenced to the same neutral point Frequency Converter Mode If a frequency converter configuration is used connect the AC input supply cables to the rectifier input busbars U1 V1 W1 N terminals Torque to 5Nm for M6 bolts to 13Nm for M8 bolts or to 26Nm M10 bolt Ensure correct phase rotation There will not be any AC bypass supply cables to the bypass input U3 V3 W3 N terminals and tighten the connections For frequency converter operation ensure that the linking busbars between bypass and rectifier input are removed Single Module UPS Installation Output System Connections 6 Connect the system output cables between the UPS out
47. associated backup battery Battery Mode Stored Energy Mode Upon failure of the AC mains input power the inverter which obtains power from the battery sup plies the critical AC load There is no interruption in power to the critical load upon failure or restora tion of the AC mains input power after which the Normal Mode operation will continue without the necessity of user intervention Auto Restart Mode The battery may become exhausted following an extended AC mains failure The inverter shuts down when the battery reaches the End Of Discharge voltage EOD The UPS may be programmed to Auto Recovery after EOD after a delay time This mode and any delay time are programmed by the commissioning engineer 78 Operation 6 3 4 6 3 5 6 3 6 6 3 7 6 3 8 6 3 9 6 3 10 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 the inverter be asynchronous with the bypass the static switch will perform a transfer of the load from the inverter to the bypass with inter ruption in power to critical AC load This 1s to avoid paralleling of unsynchronised AC sources This interruption is programmable but typically set to be less than 3 4 of an electrical cycle e g less than 15ms 50Hz or le
48. be set from 30 to 360 days The periodic testing can also be inhibited Conditions Battery at float charge for at least 5 hours load 20 100 of rated UPS capacity Trigger Manually through the command of Battery Maintenance Test in LCD panel or auto matically Battery Self Test Interval 30 360 days default setting is 60 days Battery Protection settings by commissioning engineer Battery Undervoltage Pre warning The battery undervoltage pre warning occurs before the end of discharge After this pre warning the battery should have the capacity for 3 remaining minutes discharging with full load The time is user configured from 3 to 60 minutes Battery End of Discharging EOD Protection If the battery voltage is lower than the EOD the battery converter will be shut down EOD is adjust able from 1 6V to 1 75V per VRLA cell or 1 0 to 1 1 V per NiCd cell Battery Contactor Fault Warning If the battery contactor monitor status is different from the drive signal this warning will occur Battery Disconnect Devices For 30 40kVA models with internal batteries and for any model fitted with a Battery Start kit the UPS contains an internal contactor for automatic connection and disconnection of the batteries The relevant features are Low battery safety cutoff Connect disconnect status displayed via LCD Overcurrent protection Maximum discharging time protection 1 to 72 hours For models above 40kVA and not fitted
49. breaker where an external battery is used This breaker is located inside the battery cabinet if used or is otherwise adjacent to the battery racks Open Output power switch Q5 Open bypass input power switch Q2 Ensure maintenance bypass power switch Q3 is open mimic panel LED indications and messages will extinguish as the mains driven internal power supplies decay 9 To completely isolate the UPS from the AC supplies the main external power input isolator both isolators where split supplies are provided for rectifier and bypass and external output isolator must be opened and tagged with warning labels accordingly WARNING Hazardous Battery Voltage No operator serviceable parts are located behind covers that require tool for their removal Only qualified service personnel are authorised to remove such covers The UPS battery and connecting terminals remains energized at hazardous voltage levels at all times The battery is located behind protective covers that require a tool for their removal inside the UPS cabinet 30 and 40kVA models inside a free standing battery cabinet or on open racks inside a dedicated battery room that may be locked Emergency Shutdown With EPO This circuit has been designed to switch off the UPS in emergency conditions 1 fire flood etc The system will turn off the rectifier inverter and stop powering the load immediately including the inverter and bypass a
50. charger current 0 100 3 Activating this feature turns the battery charger off NOTE All auxiliary cables of terminal must be double insulated Wire should be 0 5 1 5mm 16 20AWG stranded for maximum runs between 25 and 50m 82 164 ft respectively 12 Single Module UPS Installation 1 8 2 Maintenance Bypass Cabinet Interface J26 and J30 are the MBC interface Table 4 Maintenance bypass cabinet interface Position Name Description J26 1 T IT Input transformer overtemperature NC J26 2 AUX Reserved J26 3 12V 412V Power J26 4 GND Power Ground J30 1 FUSE Reserved J30 2 F FAN Fan Fail Alarm NC J30 3 T Output Transformer Overtemperature NC J30 4 AUX O Reserved Must be configured by software before becoming active NOTE All auxiliary cables of terminal must be double insulated Wire should be 0 5 1 5mm 16 20AWG stranded for maximum runs between 25 and 50m 82 164 ft respectively 1 8 3 External Circuit Breaker Interface J10 is the interface to any external battery circuit breaker BCB Table 5 External circuit breaker interface Position Name Description J10 1 DRV BCB Driver Signal Output N O J10 2 FB BCB Contact State Input N O J10 3 GND Power Ground J10 4 OL BCB On Line Input This pin will become active when BCB interface is connected N O NOTE All auxiliary cables of terminal
51. current fire prevention requirements Operating environment temperature between 20 C and 25 C 68 and 77 F The batteries are at maximum efficiency in this temperature range see Table 33 The UPS cabinet is constructed around a steel chassis with removable panels The top and side panels are secured to the chassis by screws Access to the power terminals auxiliary terminals blocks and power switches is from the front Oper ational status and alarm information is provided through the front door operator control panel Mod els 40kVA and below house both the power components and an internal battery Cooling air enters in the front of the NXa 30 120kVA and the front and bottom of NXa 140 200kVA it is exhausted out the top of each System Cabinets A UPS may comprise a number of cabinets depending on design requirements e g UPS cabinet exter nal battery cabinet external bypass cabinet In general all the Liebert cabinets used in a particular installation are of the same height and designed to be positioned side by side to form a matching array Refer to 5 0 Installation Drawings for assistance on positioning the cabinets described below 30 to 40kVA UPS The UPS consist of a single cabinet which uses typically forty 40 12V battery blocks fitted inter nally and connected in series to provide a nominal battery voltage The UPS may be shipped without the batteries fitted An extended battery option is available This compr
52. ouod ee I 105 9 1 1 Redundant Back Feed Protection 105 3SeismiezAnelorg oi m cedet ae esos tuse asus Mathia SM a 105 9 1 3 Degree of Protection for the UPS 105 Battery Start Facility a erm EA ers spera tre e 105 9 1 5 Bypass Current Sharing Inductors 106 91 6 Battery Ground Fault 108 91 7 Dust Palters ova eee e t RR ege es ete eto ec a o eon 109 9 1 8 Redundant Fan for Power 109 Communication and Monitoring 110 9 2 1 OC Web Card SNMP HTTP Network Interface Card 111 9 2 2 Relay Card zoe our PES ere a ere nearest od ere ses e re CE EE 112 9 2 9 Card seu teres ea e dee te tege NORMA S ID CAU E gre gus 113 9 2 4 485 Web Card Modbus Jbus IGM Net 114 9 2 5 Remote Alarm Monitor a usis On nh s 114 TECHNICAL SPECIFICATIONS 2 24 7 ct et raw eee wd De he 115 Conformity and 115 Figure 1 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8
53. running Rectifier Overtemp The UPS can recover automatically Check the environment and ventilation Batt Contactor Fail Battery contactor or circuit breaker not responding to control signals Batt Charger Fault The voltage of the battery charger is too high Control Power 1 Fail UPS operates but Redundant Control Power is not available Mains Phase Reversed AC Input phase sequence is reversed Rectifier Overcurrent Rectifier is overloaded Soft Start Fail Rectifier could not start due to low DC bus voltage 98 Operator Control Panel and Display Table 23 UPS messages Message Description Suggested Action if any This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass voltage is beyond the normal range The amplitude threshold is fixed for positive and negative 10 rating This alarm automatically resets once the bypass voltage goes normal 1 First verify that the bypass voltage and frequency displayed on the panel is within the selected range Note here the rated voltage and frequency are specified by Output voltage level and Output frequency level respectively 2 If the displayed voltage is believed to be abnormal then verify the bypass voltage and frequency presented to the UPS Check the external supply if it is found to be faulty This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass voltag
54. the actual output current to verify that the indications are valid Disconnect unnecessary load and ensure the safety In a parallel system a severe load sharing error can also leads to the alarm 99 Operator Control Panel and Display Table 23 UPS messages Message System Over load Description Suggested Action if any The UPS parallel system is confirmed to overload when the total load arises above 105 nominal rating for the set basic number of UPSs The alarm automatically resets once the overload condition is removed 1 Confirm that the alarm is true by checking the system load percent indicated on the LCD panel to determine which phase is being overloaded 2 If the alarm is true measure the actual output current to verify that the indications are valid Disconnect unnecessary load and ensure the safety In a parallel system a severe load sharing error can also leads to the alarm Unit Over load Timeout The UPS is confirmed to overload and the overload times out Note 1 the highest loaded phase will indicate overload timing out first Note 2 When the timer is active then alarm unit overload should also be active as the load is above nominal Note 3 When the timer has expired the inverter Static Switch is opened and the load transferred to bypass The inverter shutdown and will restart after 10 seconds Note 4 If the load decreases lower than 95 after 5 minutes the system will tr
55. the circuit is connected to a UPS The text to use is the following or equivalent ISOLATE THE UNINTERRUPTIBLE POWER SYSTEM BEFORE WORKING ON THIS CIRCUIT 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 regulations for equipment located in an operator accessible area Hazardous voltage is present within the UPS and battery enclosure but out of reach of non ser vice personnel Contact with hazardous voltage is minimized by housing live parts behind safety pan els that require a tool for their removal No risk exists to any personnel when operating the equipment in the normal manner following the recommended operating procedures Battery Voltage Exceeds 400VDC All physical battery maintenance and servicing requires the use of a tool or a key and should be car ried out only by trained personnel WARNING Special care should be taken when working with the batteries associated with this equipment When connected together the battery terminal voltage will exceed 400VDC and is potentially lethal Battery manufacturers supply details of the necessary precautions to be observed when working on or in the vicinity of a large bank of battery cells These precautions should be followe
56. voltage and or frequency UPS is in BYPASS MODE load not on Inverter power UPS Battery is LOW UPS fault has occurred Table 29 Connection JPO1 Pin 9 to Pin 17 Description Allows all relay COMMONS to be tied together REMOVE Interconnects all relay COMMONS and the not supported ANY MODE SHUTDOWN Return JPO2 Pin 7 to Pin 17 112 Options For Assembly Inside the UPS Cabinet 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 typical application is to allows a maximum of four computer systems to simultaneously monitor the status e g utility power failure low battery of a single UPS This card is supported in any of the three NX Intellislot bays Figure 79 SiteNet MultiPort4 Intellislot pin configuration 41 CPU 5 5 ani CPU 41 CPU Table 30 SiteNet MultiPort4 Intellislot pin assignment Assignment Description 2 5 Low Battery Not Used Not Used Not Used Not Used Not Used Low Battery Common Utility Fail Common Utility Fail 02 N 113 Options For Assembly Inside the UPS Cabinet 9 2 4 485 Web Card Modbus Jbus IGM Net The OpenComms 485 Card facilitates SiteScan Web or Building Management Systems monitoring T
57. with an internal contactor The features above except automatic connect are performed by connecting the external battery to the UPS through an external battery circuit breaker which is manually closed and electronically tripped via the UPS control circuits 80 Operating Procedures 7 0 OPERATING PROCEDURES 7 1 7 2 WARNING Hazardous mains and or battery voltage present behind covers No user serviceable parts are located behind covers that require a tool for their removal Only qualified service personnel are authorised to remove such covers 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 to intervene with the UPS mode of operation including starting up transferring load to bypass and shutting down NOTE All the user controls and indicators mentioned in these procedures are identified in 8 0 Operator Control Panel and Display All power switches mounted inside the cabinet and accessible after opening the key locked front door are shown in Figure 63 and described in 7 0 Operating Procedures Startup in Normal Mode This procedure must be followed when turning on the UPS from a fully powered down condition i e where the load is not being initially supplied at all or where supplied by the maintenance bypass sw
58. 0 _ Front View Side View 175 259 175 13 12x diameter 501 551 o 1525 100 m Mew bottom cable 630 entry 250x100 DU 5719 0000000 io 1 a 28 5 433 s Loss 69 Installation Drawings Figure 58 Optional external Maintenance Bypass Cabinet 800mm wide DUUDUUU 00000000 DDUDUDUU View tit 140 HL top cable 145 entry 120x160 Tu rt 50 120 460 120 50 825 F 800 7 j 1600 1 1 1 100 i 588 __ 100 585 _ 100 100 100 Front View Side View 275 _ _ 250 __ 275 13 12 _ diameter 50 i 55 165 100 bottom cable Bottom entry 250x100 630 View 10000000 559 0000000 J 55 mai 633 28 5 55 5 28 5 70 Installation Drawings Figure 59 Optional External Maintenance Bypass Cabinet 850mm wide 479 200 145 top cable entry 150x200
59. 00V Quantity of lead acid cells Nominal 240 40 x 6 cell 12V blocks Maximum 252 42 x 6 cell 12V blocks Minimum 228 38 x 6 cell 12V blocks 2 25 V cell selectable from 2 2 2 3V cell Float Voltage Vicell Constant current and constant voltage IU charge mode Temperature 5 compensation mV C cl 3 0 selectable 0 to 5 0 around 25 C 77 F or 20 C 68 F or inhibit Ripple Voltage V float lt 1 Ripple Current 96 C49 lt 5 2 35 V cell selectable from 2 30 2 40V cell Boost Voltage VRLA V cell Constant current and constant voltage IU charge mode float boost current trigger 0 050 C49 selectable 0 030 0 070 boost float current trigger 0 010 C49 selectable 0 005 0 025 with Boost Control 24 hr safety time out selectable 8 30 hr boost mode inhibit also selectable 1 63 V cell selectable from 1 60 1 75 V cell End Of Discharge VRLA V cell Auto Inverse EOD voltage x discharge current mode The end of discharge voltage increases at low discharge currents 2 4 V cell selectable from 2 3 2 4V cell Battery Charge V cell Constant current and constant voltage IU charge mode Programmable auto trigger or inhibit of boost mode Battery Charging Power 2 kW 5 1 6 7 10 13 17 20 23 8 27 2 34 Max Current A 13 17 25 83 43 50 60 68 85 Adjustable 3 1 Fora battery capacity of 24Ah or that corresponding to a rated back up time of 10 m
60. 2 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 system depending on the redundancy level optional maintenance bypass cabinet must be used in all configurations where one internal main tenance bypass switch is insufficient to supply the full system load Each rating has maintenance bypass cabinets sufficient to supply the full system load up to six units in parallel power operation Interlock with UPS Module Interlock the External Maintenance Bypass Switch with the operation of the UPS module s prevents backfeed of the External Bypass AC power into the Inverter if an incorrect switching sequence is used A volt free auxiliary status contact from external bypass switch QF3 is connected to UPS termi nal X3 MBC interface of the parallel control board M3 Figure 35 External maintenance bypass cabinet with separate bypass input 400V 50Hz 3 or 4W Supplied by Others 400V 50Hz 4w External Optional Cabinets EXT Maint X3 1 amp 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 amp 4 on UPS Parallel Board leave shorted if no external output switch is used Pro vi
61. 850 Top View 56 824 i 1800 100 585 Side View 50 55 Bottom View 630 638 Front View 100 13 12x diameter 152 5 150 bottom cable entry 270x150 71 Installation Drawings Figure 60 Cabling diagram 30 200kVA MBP T cabinet configuration 1 1 1 BY PASS SUPPLY MAIN PDWER SUPPLY I m PII vp ecu F n WIRING LEGEND FACTORY SUPPLIED WIRING POWER CABLE FACTORY SUPPLIED WRING SIGNAL CABLE i FIELD SUPPLIED WRING CUSTOMER INTERCONNECTION WIRING POWER CABLE SS INTERCONNECTION WIRING SIGNAL CABLE NOTE 1 CONSULT INSTALLATION MANUAL FOR UPS CONNECTIONS 401 esc Nu e PCB BOARD 5 uem im mie em genes ee im em Dem e em m eei m SS ime i MISI ee Rp I ee ek is ACE a Ae ee ae ee ee ee 4 l l 105 106 107 c sF a I I 1 I l Epp cum m a e Telly ee I I I I I I I 5 INPUT INPUT N OUTPUT DUTPUT_N 21 02 Boord 3 UPS MODULE TENOR J5 ala I Sat Ce ai LJe1 E 26 oo ER
62. D GND1 GND1 to GND on U2 board 12V Power supply from 5 1 12V P12 Monitor Bd to Temp Monitoring Power available 3W X7 Probe amp Buffer e 3 ov on 02 Monitor GND2 GND2 to GND on U2 board Buffered Bat temp Probe signal 7 2 Out out from BCB Bd to Monitor Bd 1 Cables connected to X3 BCB must be segregated from power circuits double insulated and of a typical 0 5 to 1mm2 cross section area for maximum runs between 25 and 50 meters respectively 2 Battery temperature sensing cables must be less than 10 m long 3 30 40kVA UPS models fitted with internal battery and any UPS models fitted with Battery Start kit contain an internal UPS battery contactor for automatic connection and disconnection of the batteries and the battery circuit breaker undervoltage coil is not used Refer to 2 5 Battery Control for details A CAUTION Leave terminals open if the corresponding facility is not used The commissioning engineer must program the UPS accordingly e g disable battery temperature compensation enable internal battery contactor 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 either directly or in case of multiple sensors through the bat tery circuit breaker board
63. FACTORY SUPPLIED WIRING POWER CABLE FACTORY SUPPLIED WIRING SIGNAL CABLE FIELD SUPPLIED WIRING CUSTOMER h INTERCONNECTION WIRING POWER CABLE 1 G BOARD L e a 4 8 kan mier INTERCONNECTION WIRING SIGNAL CABLE HH 7 73 NOTE 1 CONSULT INSTALLATION MANUAL FOR UPS CONNECTIONS r L L ma ii 7583 to BOARD 5 mj 550 to FANS s E M65 o FAM J o FANS PE m 4607 io FANG mr To Tells ec i aT Ic I INPUT INPUT_N OUTPUT ir B UPS MODULE Jaa 2 Po UB Beard 11 amp UOTE 74 Operation 6 0 OPERATION 6 1 A WARNING Hazardous mains and or battery voltage present behind covers No user serviceable parts are located behind covers that require a tool for their removal Only qualified service personnel are authorised to remove such covers 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 15 free from voltage and frequency variations and from disturbances experienced at the Mains AC input supply This is achi
64. L LUL ur 2 BYPASS INPUT 72 Installation Drawings Figure 61 Cabling diagram 30 200kVA MBP T cabinet configuration 1 1 3 BY PASS SUPPLY MAIN POWER SUPPLY ee eee eee ee WIRING LEGEND FACTORY SUPPLIED WIRING POWER CABLE FACTORY SUPPLIED WIRING SIGNAL CABLE FIELD SUPPLIED WIRING CUSTOMER INTERCONNECTION WIRING POWER CABLE INTERCONNECTION WIRING SIGNAL CABLE NOTE 1 CONSULT INSTALLATION MANUAL FOR UPS CONNECTIONS K BAR CODE o sZ in gt W602_to_FANL J4 m 603 to PCB BOARD s to Fans 6 7 7165 to sr Itt N65 to FANS W607 to FANG a E E gun 1 e 4 Terminal block ____________________________________________ 2 74 1 cu SI aI III I Eid FA ES Ts Tel re Le Tels INPUT_N DUTPUT N Hojs M3 Boardu B UPS MODULE Lo LLL Smal 2 Boord J21 72 268998 SORES 111 AUSSIE es ee ee eee ar J 73 Installation Drawings Figure 62 Cabling diagram 30 200kVA cabinet configuration 1 1 5 LOAD SUPPLY WIRING LEGEND
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66. PS 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 commissioned by authorized personnel and the external power isolators are closed WARNING Mains voltage will be applied to UPS output terminals No operator serviceable parts are located behind covers that require a tool for their removal Only qualified service personnel are authorised to remove such covers Open the UPS door to gain access to the main power switches Open or confirm disabled maintenance bypass power switch Q3 Close input bypass power switch Q2 and UPS output power switch Q5 Close also any external output isolation switches where used The LCD display becomes active Close the Rectifier AC Input Power Switch Q1 The Rectifier indicator flashes on the UPS mimic panel during the startup of rectifier and becomes steady green once the rectifier reaches normal operation state after about 30s Close external battery circuit breaker QF1 where an external battery is used This breaker is located inside the battery cabinet 1f used or 15 otherwise adjacent to the battery racks Following battery availability being detected by the UPS the red battery indicator extinguishes moments after when the battery charger starts operation Press INVERTER ON button for two seconds The inverter will start up and the inverter indicator flashes while it synchronises to t
67. PS system transferred to bypass at the same time This message will appear on the UPS which passive transfer to bypass Parallel Board Fault Malfunction of the paralleling control circuits of this UPS module Can cause System Transfer to bypass DC Bus Over Voltage Rectifier inverter and battery converter were shutdown because DC bus voltage is too high Check whether there is a fault in rectifier side If no then check whether overload occurs Restart the inverter after resetting the fault Parallel Connect Fault The parallel cables are not connected correctly in a parallel system Reset the fault by pressing the fault clear button then restart the inverter by pressing the inverter on button Bypass Over Current Bypass current is over limit above 135 rating The UPS just alarms and does nothing LBS Active Load Bus Synchronisation is active The UPS is acting as an LBS master or slave in a dual bus configuration Setting Save Error History records not saved Reserved Mains Neutral Lost AC Input mains reference neutral not detected Protocol version clash Firmware incompatibility between Monitor Board and Digital Signal Processor Board Battery ground fault Battery leakage to ground detected option Inv turned On Manually Manual Turn On via front panel 100 Operator Control Panel and Display Table 23 UPS messages Message Inv turne
68. S Cabinet 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 computers additional cable required and other relay contact monitoring systems The Relay card is rated for 24 VAC VDC at 1A and supported in any of the three NX Intellislot bays Table 28 Relay Card pin configuration Pin Function Operation 1 UPS Fault Closed if no UPS failure 2 3 Not Used 4 UPS Fault Closed if UPS fails 5 Summary Alarm Closed if SUMMARY ALARM occurs 6 Summary Alarm Closed if no alarm conditions are present 7 Any Mode Shutdown return Not use External EPO terminal 8 Not Used 9 Common Low Battery 10 Low Battery Closed if battery is OK 11 Low Battery Closed if LOW BATTERY point occurs 12 13 Not Used 14 UPS Any Mode Shutdown Not support use External EPO terminal 15 On UPS Closed if ON UPS inverter power 16 On Battery Closed if ON BATTERY power Utility failure 17 Common UPS Fault Summary Alarm On UPS On Battery On Bypass 18 On Battery Closed if not ON Battery power Utility OK 19 23 Not Used 24 On Bypass Closed if ON BYPASS 25 Not Used A Summary Alarm occurs when any of the following conditions exist Utility power is out of the acceptable range
69. T XXX 050 or 150 Specify Length in metres Used for extension in length or dual bus arrangement between Nx and non Nx sources Individual Battery Monitoring BDS 40 or BDS 256 Specify number of blocks Consult Emerson Network Power representatives for complete configuration 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 the manufacturer or agent Failure to do so could result in personnel safety risk equipment malfunction and invalidation of war ranty The Liebert NX has been designed for Commercial Industrial use only and is not recommended for use in life support applications This is a low emission CLASS A Uninterruptible Power System UPS product In a residential envi ronment this product may nevertheless cause radio interference in which case the user may be required to take additional measures Conformity and Standards This equipment complies with CE directives 73 23 amp 93 68 LV Safety and 89 336 EMO with Aus tralia and New Zealand EMC Framework C Tick and with the following product standards for Unin terruptible Power System UPS EN IEC AS 62040 1 1 General and safety requirements for use in operator access are
70. UPS with external battery 106 Bypass current sharing inductances 4 107 Battery ground fault detection set 108 Replacing the dust 109 Communication bays and cable location 110 OC Web Card data summary 111 OC Web Card battery data summary 111 SiteNet MultiPort4 Intellislot pin configuration 113 06485 yu cod pe S xs EU Y ee a DCUM RAS 114 vi Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Table 32 Table 33 Table 34 Table 35 Table 36 Table 37 Table 38 TABLES Maximum steady state AC and DC 8 Distance from floor to connection point on the 8 Input occ eR RR E Re ee BRE A AE RS 12 Maintenance bypass
71. V 400V 415V 400VDC holes Bolts Ib ft 30 50 47 45 46 43 42 64 M6 7 _ 5 1 12 40 65 62 60 61 58 56 85 60 97 92 88 91 86 83 128 9 80 128 122 117 121 115 111 170 100 160 152 146 152 145 139 213 8 13 2 9 120 191 181 175 182 174 167 255 10011 10 26 5 8 140 222 211 204 212 201 194 298 10 11 160 254 241 232 242 230 222 340 200 317 301 290 303 288 277 426 For terminal location refer to 5 0 Installation Drawings Table 2 Distance from floor to connection point on the equipment Minimum Distance mm in UPS UPS 30 40 kVA UPS 60 80 kVA UPS 100 120 kVA UPS 140 200 kVA Rectifier AC Input supply 350 13 8 305 12 324 12 8 Bypass AC Input supply 300 11 8 250 9 8 310 12 2 UPS Output AC 260 10 2 250 9 8 310 12 2 Battery Power 1030 40 5 230 9 360 14 2 Auxiliary cables 1320 52 1500 59 Monitor board U2 Communications 1070 42 1 1250 49 2 Earth 350 13 8 275 10 8 338 13 3 A WARNING Failure to follow adequate earthing procedures may result in electromagnetic interference or in hazards involving electric shock and fire Single Module UPS Installation 1 6 1 Cable Termination NOTE Q The operations described in this section must be performed by authorised electricians or qualified technical personnel If you have any difficulties do not hesitate to contact our Customer Service and Support Dep
72. a EN IEC AS 62040 2 EMC requirements Class compliant EN IEC AS 62040 3 Performance requirements and test methods For more details see 10 0 Technical Specifications Continued compliance requires installation in accordance with these instructions and the use of man ufacturer approved accessories only A High Leakage Current EARTH CONNECTION IS ESSENTIAL BEFORE CONNECTING THE INPUT SUPPLY Earth leakage current exceeds 3 5 mA and is less than 1000 mA for 30 80kVA less than 2000mA for 100 120kVA models and less than 2500mA for 140 200kVA models Transient and steady state earth leakage currents which may occur when starting the equipment should be taken into account when selecting instantaneous RCCB or RCD devices Residual Current Circuit Breakers RCCBs must be selected sensitive to DC unidirectional pulses class A and insensitive to transient current pulses Note also that the earth leakage currents of the load will be carried by this RCCB or RCD This equipment must be earthed in accordance with the local electrical code of practice A WARNING Back Feed Protection Notice This UPS is fitted with a voltage free contact closure signal for use with an external automatic disconnect device supplied by others to protect against back feeding voltage into the bypass input If this signal is not used by the installer a label must be added at the external bypass input disconnect device to warn service personnel that
73. akage monitoring devices if installed must be located upstream of the common neutral sinking point Refer to the instructions in 1 0 Single Module UPS Installation 50 UPS Multi Module Installation 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 UPS UPS Parallel Board Parallel Board Parallel Board Parallel Board DBS Cable Parallel System A Parallel System NOTE Example shown with ring control cables 8 for DSB applied to two 1 1 paralleled systems 3 4 5 Extended Dual Bus Synchronization Option DBS Interface Box For Liebert NX to non NX whether another Liebert UPS range or not dual bus configuration one DBS interface box shall be mounted on the non Liebert NX UPS and one on the Liebert NX UPS In this situation the other UPS system is always treated as a master and the following conditions are covered Master and slave are both on inverter Master on bypass slave on inverter NOTE Extended DBS interface box is also used for extending DBS cable length up to 150 metres for DBS configuration between two groups of NX UPS systems 51 External Optional Cabinets 4 0 EXTERNAL OPTIONAL CABINETS 4 1 4
74. al operation state about 30 seconds the rectifier indicator turns green NOTE The rectifier will be turned On automatically when the overtemperature fault disappears at 5 minutes after the disappearance of overtemperature signals After the EPO button is pressed if the input utility is removed the UPS will shut down completely When input utility returns if the Bypass input power switch Q2 and UPS output power switch Q5 are closed the UPS will startup on Bypass There will be power at the output terminals of the UPS WARNING If the internal Manual Bypass Power Switch Q3 1s closed and input utility is present there will be power at the output terminals of the UPS Auto Restart When the main and bypass sources fail the UPS draws power from the battery system to supply the load until the batteries are depleted When the UPS reaches its end of discharge EOD threshold it will shut down The UPS will automatically restart and enable output power After utility power 15 restored If Auto Recovery after EOD Enabling is enabled After the Auto Recovery after EOD Delay Time expires the default delay is 10 minutes If the Auto Recovery after EOD Enabling feature is disabled the user may restart the system man ually by pressing Fault Clear button 90 Operating Procedures 7 13 Language Selection 7 14 7 15 The LCD menus and data display are available in 12 languages Chinese Dutch En
75. ansfer back to inverter mode Confirm that the alarm is genuine by checking the load percent indicated on the LCD If an overload is indicated then check the load and investigate any additional load connected prior to the alarm if applicable Byp Abnormal Shutdown Both bypass and inverter voltages unavailable Load interruption Inverter Over Current Inverter Pulse Width Modulation module overloaded Bypass Phase Reversed The phase sequence direction of bypass voltage is reversed Normally the phase of phase B lags 120 degrees behind phase A and the phase of phase C lags 120 degrees behind phase B Verify that the phase rotation of the bypass supply presented to the UPS is correct and rectify it if it is found to be in error Load Impact Transfer A transfer to bypass occurred due to a large step load The UPS should recover automatically Turn on connected equipment in sequential order to reduce the step loading of the inverter Transfer Time out The load is on bypass power due to excessive number of transfers that occurred within the last hour The UPS will recover automatically and will transfer the load back to inverter power within an hour Load Sharing Fault UPS modules within a parallel system are not sharing the load current equally DC Bus Abnormal DC input voltage to inverter beyond limits Inverter shuts down Load transfers to bypass System Transfer The whole paralleled U
76. any warnings are always highlighted without the need of navigating through the menu The versions of converter firmware inverter firmware and internal monitor firmware can also be displayed on the LCD Menu keys F1 to F4 are used to navigate within the graphic LCD monitor windows Table 20 Menu key Icons and their meaning Key F1 F2 F3 FA Help Window Type 1 N LEFT RIGHT Next Data Window ENTER HELP ESC Window Type 2 Escape UP DOWN Figure 68 Graphic LCD monitor windows and keypad Liebert NX 2005 10 22 1 UPS System 200kVA 3X3 Unit 1 Window 2 UPS Menu A AB B BC Window 220 220 20 5 3 UPS Data Window Input breaker closed Manual turn on 01 12 12 30 06 4 Current Record UPSinnormalmode 01 22 12 30 16 Window 5 Keypad Window F1 F2 F3 F4 HELP 94 Operator Control Panel and Display 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 first rest in Input breaker closed In a similar manner pressing F2 would move the cursor from the Output data window to the Bypass data window The summary menu tree is shown below Refer to 8 2 All Status and Event Messages Displayed on the UPS Front Panel for a detailed description of each menu item Figure 69 M
77. artment See the back page of this manual for contact information 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 is isolated from its external power source and all the UPS power isolators are open Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation 2 Open the door to the UPS cabinet and remove one of the two protective cover to gain access to the desired connection bars the lower protective cover houses the 60 200kVA connection bars the left protective cover houses the 30 40kVA connection bars The protective cover on the UPS cabinet of 60 to 200kVA models must be removed after the handles on the power 1solators have been removed 3 Connect the safety earth and any necessary bonding earth cables to the copper earth busbar located on the floor of the equipment below the power connections All cabinets in the UPS must be connected to the user s ground connection NOTE The earthing and neutral bonding arrangement must be in accordance with local and national codes of practice Identify and make power connections for incoming cables according to one of the two procedures below depending on the type of installation Common Input Connections 4 Forcommon bypass
78. ass supply while the UPS is shut down for routine maintenance NOTE When the UPS is operating in bypass mode or on maintenance bypass the connected equipment is not protected from power failures or surges and sags Battery Circuit Breaker Any external battery is connected to UPS through a circuit breaker fitted inside the battery cabinet or located adjacent to the batteries where a battery cabinet 16 not used This circuit breaker 1s closed manually but it contains an undervoltage release coil which enables it to be tripped from the UPS control electronics following certain detected faults It also has a magnetic trip facility for overload protection The undervoltage release coil control is replaced by a battery contactor located inside the UPS fitted with either internal batteries or with battery start option or both Battery Temperature Compensation For 30 40kVA UPS with internal batteries a standard temperature probe is installed to measure the internal battery temperature to optimize battery management The measured temperature can be displayed from the UPS front panel For UPS with external batteries an optional battery temperature interface equally optimises the external battery management by connecting up to four external temperature sensors from the battery cabinet s to a control unit inside the UPS For details refer to Figure 27 Redundant Control Power Supply Board The UPS is equipped with two identical and full
79. attery maintenance test battery capacity test Stop Freshening Charge Manually stops Freshening Charge NM UPS version d version numbers for the inverter rectifier and UPS model Provides UPS model information for example 208V 60Hz 97 Operator Control Panel and Display 8 2 Current Record Window Keeps a log the events that resulted in the current mode of operation Ignores transient conditions that have been resolved Use page F1 and up down arrow to read the events For a complete history log refer to the Records tab of the Menu and Data Window Refer to Table 23 for a complete list of supported status messages All Status and Event Messages Displayed on the UPS Front Panel This is the complete list of UPS events and status messages supported for display in either the Record window Historic data or in the Current window Prevailing data as described in 8 1 4 LCD Moni tor and Menu keys Table 23 UPS messages Message Description Suggested Action if any Inverter Comm Fail Internal RS485 communication failure between monitor and inverter Rectifier Comm Fail Internal RS485 communication failure between monitor and rectifier The CAN communication between different UPSs within a parallel system fails 1 Check if there are some UPSs not powered on in the parallel sy
80. breaker is located inside the battery cabinet if used or is otherwise adjacent to the battery racks mimic panel LED indications and messages will extinguish as the mains driven internal power supplies decay The load is now powered from the maintenance bypass supply and the UPS is completely shut down A WARNING Hazardous Voltage at UPS terminals No operator serviceable parts are located behind covers that require a tool for their removal Only qualified service personnel are authorised to remove such covers The input and output AC and DC battery and connecting terminals remains energized at hazardous voltage levels at all times The battery 1s located behind protective covers that require a tool for their removal inside the UPS cabinet 30 and 40kVA models inside a free standing battery cabinet or on open racks inside a dedicated battery room that may be locked Figure 65 Example of configuration for single UPS with external Maintenance Bypass Cabinet U1 V1 W1 N1 U2 V2 W2 N2 Supplied by Others 9 a u eee Operating Procedures 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 Supplied J by Others Input Mains InputMains Supply L1 L2 L3 N Supply L1 L2 L3 N L1 L2 L3 N
81. cabinet 13 External circuit breaker 13 Output dry contact relays for firmware before 162 14 EPO 3nput contact relays e cod tete ae es s DNUS 15 Dimensions and Meee ses ERE hoe a dete 19 UPS circuit breaker configurations 000 0c ccc s 40 Battery circuit breaker box 4 41 Battery control label description 109 43 UPS control and display panel components 92 Rectifier indicator de CRUE de es 93 Battery andic ator 2 s Gye ese rea o eR PARS Ru e M bU BER OEE 93 Bypass indicator vues ex heh ee e pese GR a ae at ee ae 93 Inverter indicator i ewe eee ase et GI eg a cee etra 93 Load indicator Daa cv eae did be eR ge Be a 93 Status Alarm 93 Audible alarm ue vues e SB RE Pie eia Be 93 Menu key Icons and their 94 UPS system wando
82. case direct wiring to the NX Monitor Board is required the auxiliary NO contact of the battery circuit breaker is wired directly to the NX monitor board terminal X3 BCB 2 3 On Line X3 BCB terminals 4 3 of the NX monitor board are linked Any temperature sensor is wired directly to the NX monitor board terminal X7 2 12V 3 signal 4 GND For details refer to 1 7 Control Cables and Communication The above applies to 30 to 40kVA models with internal battery any model with the Battery Start option The commissioning engineer must program the UPS accordingly e g enable or disable bat tery temperature compensation enable internal battery contactor 39 Battery Installation 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 installed in the battery cabinet in which case the appropriate battery box is fitted as close as possible to the battery and connected to the UPS equipment as illustrated in Figure 25 The battery circuit breaker box used with the circuit breaker controller board is required to protect the battery from deep discharging and overcurrents It also provides electrical isolation between the UPS and the battery permitting technical service personnel to reduce the ris
83. ches normal operation state after about 30s 4 Close external battery circuit breaker where an external battery is used This breaker is located inside the battery cabinet if used or is otherwise adjacent to the battery racks 5 Following battery availability being detected by the UPS the red battery indicator extinguishes moments after when the battery charger starts operation 6 Open or confirm open the internal Manual Bypass Power Switch Q3 Open also any external Maintenance Bypass Switch where used 7 Press INVERTER ON button for two seconds The inverter will start up and the inverter indicator flashes while it synchronises to the bypass voltage frequency After the inverter is ready the UPS transfers from bypass to inverter the bypass indicator turns off and the inverter indicator becomes steady green 8 Check that no Warning message is displayed in the top right corner of the LCD Monitor and the status of the indicators are LED LED Function Status Rectifier indicator Green Battery indicator Off Bypass indicator Off Inverter indicator Green Output indicator Green Ww Pp Alarm indicator Off The UPS is now operating in NORMAL mode 82 Operating Procedures 7 3 7 4 7 4 1 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
84. control functions accessible to the operator The default pass word is 12345 This password provides access to UPS and battery test functions 91 Operator Control Panel and Display 8 0 OPERATOR CONTROL PANEL AND DISPLAY 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 of event and alarm logs Figure 67 UPS control and display panel The operator control panel is divided into three functional areas Mimic Power Flow Chart Graphic LCD monitor with menu keys Direct Access keys Status Liebert NX 2005 10 22 17 32 20 200 3X3 Single Normal oo L1i N L2 L2 N L3 L3 N L1 L1 N L2 voltage V 229 5 229 5 229 5 L N current A 24 5 24 5 24 5 Frequency Hz 49 97 49 97 49 97 L L voltage V 3975 3975 3975 Power Factor 0 99 1 00 0 99 ua Rotary SW normal pos 07 07 17 24 1 Manual turn 07 07 17 29 Normal mode 07 07 17 30 __ FAULTCLEAR SILENCE ON OFF F1 F2 F3 e we wo Table 12 UPS control and display panel components Component Function Button Function 1 T Rectifier Input AC to DC EPO Emergency Power Off button 2 Battery DC Back up Inverter ON Inverter start button 3 Bypass Input Inverter OFF Inverter shutdown button 4 Inverter DC to AC Faul
85. 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 batteries maximum boost charge voltage should not exceed 2 4V cell Float Charge Voltage of float charging can be set as required by the type of battery For VRLA float charge voltage should be between 2 2V to 2 3V Float Charge Temperature Compensation optional A coefficient of temperature compen sation can be as required by the type of battery End of discharge protection EOD If the battery voltage is lower than the EOD the battery converter will shut down and the battery is isolated to avoid further battery discharge EOD 16 adjustable from 1 6V to 1 75V per cell VRLA or 0 9 to 1 1 V per cell NiCd Battery Low Warning Time Adjustable between 3 and 60 minutes The default is 5 minutes 6 4 2 Advanced Functions Software Settings Performed by the Commissioning Engineer 6 5 Battery Self Test and Self Service At periodic intervals 2096 of the rated capacity of the battery will be discharged automatically at a rate equal to 15 kW of the rated UPS kVA capacity During discharge the rectifier provides the balance necessary to feed the load The minimum amount of load must exceed 20 of the nominal rat ing of the UPS module If the load is less than 20 auto discharge cannot be executed The periodic interval can
86. d Off Manually Description Suggested Action if any Manual Turn Off via front panel EPO Emergency Power Off direct access key pressed or external command received Transfer Confirm Prompt to press enter key to acknowledge that an interrupted load transfer to bypass will happen Transfer Cancel Prompt to press ESC key to avoid that an interrupted load transfer to bypass will happen Unit Off Confirm Prompt to press enter key to acknowledge that the UPS will be disconnected from other paralleled UPS modules System Off Confirm Prompt to press enter key to acknowledge that the all paralleled UPS will be disconnected from the load Fault Reset Fault clear direct access key pressed Alarm Silence Silence On Off direct access key pressed Inverter failed to turn on when Inverter On direct access key was pressed This may Turn On Fail be as a result of Invalid Operation Maintenance bypass on or DC bus or rectifier not ready Alarm Reset Fault clear or Silence On Off direct access key pressed Bypass Mode Load supplied from AC input bypass supply Normal Mode Load supplied from Inverter output through double conversion of the AC mains input supply Battery Mode Load supplied from Inverter output through double conversion of the Battery supply Source share mode Load supplied from Inverter output through shared double conversion of the AC mains input supp
87. d implicitly at all times Attention should be paid to the recommendations concerning local environmental conditions and the provision of protective clothing first aid and fire fighting facilities Single Module UPS Installation 1 0 SiNGLE MODULE UPS INSTALLATION 1 1 1 2 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 1s a guide to general procedures and practices that should be observed by the installing engineer The particular conditions of each site will determine the applicability of such procedures WARNING Professional Installation Required Do not apply electrical power to the UPS equipment before being authorised to do so by the commissioning engineer The UPS equipment shall be installed by a qualified electrical tradesperson in accordance with the information contained in this manual All equipment not referred to this manual is shipped with details of its own mechanical and electrical installation NOTE Three phase 4 wire input supply required The standard Liebert NX UPS is suitable for connection to 8 phase 4 wire Earth TN TT and IT AC power distribution systems IEC60364 3 Optional 3 wire to 4 wire conversion transformers are available If it is used in IT AC power distribution systems a 4 pole circuit breaker must
88. delivered to the load Follow 7 2 Startup in Normal Mode and observe at the end of the procedure that the mimic panel bypass indicator remains green indicating that the load 1s supplied by the bypass mains The UPS is now operating in ECOMODE Battery Test Mode Procedures The Battery test mode procedures transfer the UPS into shared source mode wherein approximately 1596 of the rated load power is supplied by the battery and the balance by the AC input mains There are two Battery tests to select from Maintenance test verifies battery integrity and leads to a 20 percent battery discharge Battery Capacity test verifies the battery s precise capacity and leads to a full battery discharge until Battery Low alarm The battery test procedures are password controlled and menu driven The test is immediately termi nated in the event of a battery or a mains failure and the total load power is supported from the remaining source without interruptions The tests can be carried out from the UPS control panel by the operator when the following conditions are satisfied The load must be between 20 and 100 of rated UPS capacity The battery must have been float charging for 5 hours or more Test Procedure 1 Select Commands window on the UPS control panel Use the right or left arrow keys to navigate to the Commands window 2 Select desired Test Use page F1 and up down arrow keys F2 to highlight t
89. derations 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 life is reduced at temperatures above 25 C 77 F When batteries are mounted in the same room as the UPS unit it is the battery that dictates the designed maximum ambient temperature not the UPS i e in the case of valve regulated cells the ambient room temperature should be kept between 15 C 25 C 59 77 F and not between 0 C and 40 C 32 104 F which is the specified main equipment operating temperature range Tempera ture deviations are permissible for short periods provided the average temperature does not exceed 25 C 77 F Dimensions The external dimensions are shown in Table 8 These are the same height and depth as the UPS module and provide a matching appearance when bolted together All cabinets are fitted with doors which must be fully opened in order to fit or remove the batteries The door swing must therefore be taken into consideration when planning the positioning of the cabinets Weight The unladen weight is shown below in Table 8 When designing the battery installation the weight of the batteries and cables must be added to the unladen weight This is particularly important when placing the NX on a raised floor Table 8 Dimensions and weight
90. des external output interlock protection for paralleled UPS modules Short circuit means external output switch closed 4 3 Isolation Transformer Option Isolation transformers are required in cases requiring galvanic isolation between the input supply mains and the UPS These options are housed in cabinets and they are available for every range of UPS These optional cabinets provide the Top Cable entry function Terminals cabling for the battery connection is not a part of the or TC cabinet Figure 36 Equipment arrangement UPS battery cabinet and top entry Isolation Transformer Cabinet BATTERY cabinet FRONT Figure 37 Single input external isolation transformer cabinet Isolation Transformer Cabinets Input Mains Supply Supplied by Others 53 External Optional Cabinets Figure 38 Dual input external isolation transformer cabinet Maintenance Bypass Supply QF2 Isolation Transformer Cabinets QF1 A Input v Supply E ayasa Q2 Q1 Input Mains Supply Supplied S by Others UPS BS X3 Figure 39 Output external isolation transformer cabinet Isolation Transformer Cabinets Supplied by Others Input Mains Supply 4 4 Top Cable Entry Option Optional Top Cable entry cabinets are available for every range of UPS gt lt 95 Ww Load i 54 I
91. door open30 40kVA NX e 200 g 3 T m i Se 5 6 I B Q5 Q2 4 P Internal battery trays behind cover 4 5x 159 x 364 x 685mm HWD el 4 b _____ __ ____ o Us LS Loo 1 Output Switch Q5 NXa 30 40kVA 2 Maintenance Bypass Switch Q3 Front View 3 Bypass Input Switch Q2 4 Mains Input Switch Q1 5 Monitor Board U2 57 Installation Drawings Figure 43 Cable terminal layout 30 40kVA NX 5000 199 SEE 1 5
92. e check the current warnings Check Current Records window Enter control password Required for Battery or UPS test default 12345 Battery Self Test aborted condition not met Battery self test condition is not enough User should check whether battery state is boost charging and whether load level is greater than 20 percent Battery Refresh Charge aborted condition not met Boost charging condition is not enough such as no battery charger has failed etc 103 Operator Control Panel and Display 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 the main screen Figure 70 Help screen Help information _ Select the current record window Select the previous menu item Press help key back to main menu 8 5 Default Screen Saver This default screen is displayed following at least 2 minutes of operation with no new alarm After another delay the backlight turns off Press any key F1 F4 or Help to reactivate the screen Figure 71 Default screen Liebert NX 2005 05 22 12 30 36 200 kVA 3x3 UNIT 1 NORMAL EMERSON Network Power 0 Liebert Press any key back to main menu F1 F2 F3 F4 HELP
93. e exceeds the limit This alarm automatically resets once the bypass voltage goes normal First check if there are some relevant alarms such as Bypass disconnect open Bypass phase reverse and Mains neutral lost If they appear solve them first 1 Then verify that the bypass voltage and frequency displayed on the panel is Bypass Abnormal within the bypass limit Note here the rated voltage and frequency are specified by Output voltage level and Output frequency level respectively 2 If the displayed voltage is believed to be abnormal then verify the bypass voltage and frequency presented to the UPS Check the external bypass supply if it is found to be faulty If the utility is likely to trigger this alarm frequently the bypass limit can be changed a little larger through the configuration software according to the customer s agreement Bypass Unable to Trace This alarm is triggered by an inverter software routine when the inverter and bypass waveforms are misaligned by more than 6 degrees in phase This alarm resets automatically once the condition is no longer true Inverter Asynchronous 1 First check if the alarm Bypass unable to trace or Bypass abnormal occurs If SO solve it first 2 Verify the waveform of the bypass voltage If it is too distorted ask the customer to verify and seek any possible measurements Inverter Fault Inverter output voltage beyond limits Load transfers to bypass The temperatu
94. e load 1 5 2 External Battery UPS and its associated batteries are protected against overcurrents through a DC compatible dis connect device 1 5 3 UPS Output Any external distribution board used for load distribution shall be fitted with protective devices that discriminate with those used at the bypass input to the UPS and with the UPS overload characteris tics see Table 38 Single Module UPS Installation 1 6 A Power Cables For cable entry terminal refer to Figures 43 48 52 and 56 WARNING Before starting the UPS ensure that you are aware of the location and operation of the 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 external isolators that connect the ups input bypass supply to the mains distribution panel Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation Table 1 Maximum steady state AC and DC currents NOMINAL CURRENT Amps BUSBAR STUD SIZE Input Mains B with full battery Bypass Output attery at recharge at full load minimum Bypass UPS 3ph 3ph Cables Battery Torque RATING voltage Cables Load Nm kVA 380V 400V 415V 380
95. e ventilation to keep the ambient temperature within the specified operating range see Table 33 models in the Liebert NX UPS range are air cooled with the aid of internal fans Cold air enters through ventilation grilles at the front of the cabinet for NXa 30 120kVA and through ventilation grilles located at the front and bottom of the cabinet for 140 200kVA Hot air is released through grilles at the top Do not cover the ventilation openings If necessary to avoid room temperature build up install a system of room extractor fans Optional air filters are available if the UPS is to operate in a dusty environment The UPS heat dissipation detailed in Table 34 can be used as a guide for air conditioning sizing depending on the selected mode of operation Normal Mode VFI SS 111 Double Conversion UPS ECO Mode VFD SS 311 Stand By UPS If in doubt use Normal Mode figures The UPS is suitable for mounting on concrete other non combustible surface only External Battery Room Batteries should be mounted in an environment where the temperature is consistent and even over the whole battery Temperature is a major factor in determining the battery life and capacity Typical battery manufacturer performance data are quoted for an operating temperature between 20 and 25 C 68 and 77 F Operating above this range will reduce the battery life while operation below this range will reduce the battery capacity In
96. e with the additional requirements detailed in this chapter In addition to the local EPO push button on the front panel of the UPS module that stops operation of that module the UPS supports also a remote emergency stop to permit simultaneous multi module shutdown NOTES 1 The remote emergency power off switch must be voltage free and Normally Open or Normally Closed 2 The open voltage supplied is 12VDC 20mA 3 This external emergency stop may be supplied with a second set of contacts that can be used to trip incoming mains or bypass supply circuit breakers supplied by others and fitted with remote trip units 4 Normally Closed EPO X2 1 amp 2 these terminals are supplied factory linked on the monitor board Figure 28 Emergency power off connections lt x2 3 E x2 4 Monitor Board X2 3 Y2 4 Monitor Board EPO X2 1 x22 Monitor Board EPO 45 UPS Multi Module Installation 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 Cabinet Installation Place the UPS modules side by side and interconnect as shown in Figure 29 The distribution panel external bypass cabinet is optional but recommended for ease of maintenance and system te
97. ells 1n a key lockable cabinet or in a purpose designed dedicated battery room NOTE Q Full safety instructions concerning the use and maintenance of UPS batteries are provided in the appropriate battery manufacturers manuals The battery safety information contained in this section relates to key considerations that must be taken into account during the installation design process and might affect the design outcome depending on localised conditions WARNING Hazardous battery voltage present behind covers No user serviceable parts are located behind covers that require a tool for their removal Only qualified service personnel are authorised to remove such covers When using internal batteries in 30 and 40kVA units the batteries are always connected through power fuses to the UPS and to the segregated terminal bars available for connection to an external battery Isolate any internal battery connections before attempting to access the segregated terminal bars available for connection to an external battery The following general battery safety precautions and warnings should be observed at all times A battery can present risk of electric shock or burn from high short circuit currents The full nominal string voltage when the battery blocks are interconnected is 480VDC which 1s hazardous Only qualified personnel should install or service batteries Eye protection should be worn to prevent injury from electrical arcs
98. enu tree Mains input L N voltage V L N current A Frequency Hz L L voltage V Power factor TX Input Bypass Output TX Output L N voltage V L L voltage V L N voltage V Frequency Hz L L voltage V L N voltage V L N current A Frequency Hz L L voltage V Power factor L N voltage V L L voltage V Choices for display gt Load um System Battery gt Sout kVA Sout kVA Battery voltage V history log Pout m Pout kW Battery current A Qout KVAR Qout KVAR Battery temperature C Loadlevel 96 Single unit no Remain Time Min Crest factor parallel data Battery capacity 96 Battery boost charging Battery float charging Battery disconnected Language Settings Command Display contrast Date format set Date amp time Comm 1 baud rate baud rate Comms baud rate Communication mode Callback times Phone No 1 Phone No 2 Phone No 3 Command password Communication address Battery maintenance test Battery capacity test System test Stop testing Freshening Charge Stop Freshening Charge UPS version UPS model When configured input transformer voltages are displayed on the front LCD When not activated the values are hidden When configured output transformer voltages are displayed on the f
99. er 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 the equipment for unimpeded passage of person nel with the doors fully opened It is important to leave 800mm 31 5 clearance above the UPS to permit adequate circulation of air coming out of the unit Access The component layout of the UPS supports front and top access while servicing diagnosing and repairing the UPS thus reducing the space requirement for side and rear access Final Positioning The UPS cabinets are fitted with casters on the base to allow ease of movement and positioning A WARNING Casters are strong enough for movement across even surfaces only Caster failure could occur if they are subjected to shock loading When the equipment has been finally positioned ensure the adjustable feet are set so that the UPS will remain stationary and stable Floor Anchoring Diagrams in 5 0 Installation Drawings show the location of the holes in the base plate through which the equipment may be bolted to the floor If the equipment is to be installed on a raised floor it should be mounted on a pedestal suitably designed to accept the equipment point loading Cable Entry Cables can enter the Liebert NX UPS and battery cabinet from below Cable entry is made possible by removing a blanking piece fitted at the bottom of equipment t
100. es Leda MR ue d HU e a An pd abii duet due 50 BA A gt 2 s Control Wires URP we ee es Vct eb RA e et 51 3 4 5 Extended Dual Bus Synchronization Option DBS Interface 51 EXTERNAL OPTIONAL 52 External Maintenance Bypass 52 Interlock with UPS 52 Isolation Transformer 53 Top Cable Entry 0 54 INSTALLATION 22 225 5 46 es esau d 55 OPERATION ziuen i cw 3h co ose ee es ee a rr aan Te x OS a 75 Introduction EGE EP MUT BRAN 75 GLA Split By pass Input xu os be ts Godt ou a OE eee Gak aba AO 76 6 1 2 Statie Transfer Switch RUM UAE AGIs 76 6 1 3 Battery Circuit 76 6 1 4 Battery Temperature 76 6 1 5 Redundant Control Power Supply Board 76 6 16 Socket Outlet cs cz p Ta Sia
101. eved through high frequency double conversion power pulse width modulation PWM associated with full digital signal processing control DSP As shown in Figure 63 the AC input mains source is supplied at Q1 and converted into a DC source This DC source feeds a DC DC Bidirectional Battery Converter that ensures the battery to remain charged at all times and at the same time feeds the Inverter that converts the DC source into a clean and input independent AC source The battery powers the load through the bidirectional battery con verter and through the inverter in case of an AC input mains power failure In case of Inverter unavailability or excessive overload the load may also be powered from an external AC Bypass source through input isolator Q2 and the static bypass Besides this if maintenance or repair of the UPS is necessary the UPS can support the load through the internal and manually controlled maintenance bypass isolator Q3 With the exception of the maintenance bypass isolator all the isolators shown are closed during normal UPS operation Figure 63 Single unit block diagram with split bypass input Bypass UPS Module Mains Maintenance Bypass Isolator Q 3 Supply Bypass Isolator Q2 Bypass Side DC Bus Rectifier Inverter Static Switch Input Input Isolator Input Output Sx Mains Q1 Static Isolator E Supply Switch Q5 Battery Converter 1 Battery Circuit Breaker 75 Operation 6 1 1 6 1 2 6 1 3 6 1
102. f the current listed in Table 1 is suitable Split Bypass lf a split bypass is used install separate protective devices for the rectifier and for the bypass in the incoming mains distribution panel NOTE Rectifier and bypass input sources must be referenced to the same neutral potential NOTE For IT power systems four pole protective devices must be used external to the UPS both upstream of the input distribution panel and downstream toward the load Earth Leakage RCD Any residual current detector RCD installed upstream of the UPS input supply must be sensitive to DC unidirectional pulses Class A insensitive to transient current pulses and must have an average sensitivity adjustable between 0 3 and 1A Figure 1 Residual current circuit breakers RCCB symbols To avoid false alarms earth leakage monitoring devices when used in systems with split bypass input or when used in paralleled UPS configurations must be located upstream of the common neutral sinking point Alternatively the device must monitor the combined four wire rectifier and split bypass input currents The residual earth current introduced by the RFI suppression filter inside the UPS is greater than 3 5mA 1000mA for 30 80kVA 2000mA for 100 120kVA models and less than 2500mA for 140 200kVA models Liebert recommends verifying the selectivity with all other differential devices both upstream of the input distribution board and downstream toward th
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104. glish French German Italian Japanese Polish Portuguese Russian Spanish and Swedish To select a different language than the one being displayed 1 9219 From the main menu press the F1 shift key to move the cursor to the menu at the top of the screen Press F2 and left and right arrows as needed to select the Language menu Press F1 shift to move the cursor to the data and settings area of the LCD Use F2 and F3 up and down to select the required language Press the F4 enter key to accept the language selection Return to the main menu by repeatedly pressing F1 ESC as needed all text on the LCD will now be displayed in the selected language Changing the Current Date and Time To change the system date and time 1 From the main menu press the F1 shift key to move the cursor to the menu at the top of the screen Press F2 and F3 left and right arrows as needed to select the Settings menu Press F1 shift to move the cursor to the data and settings area of the LCD Use F2 and F3 up and down to select the Date amp Time option then press F4 enter Position the cursor on the row in which the date and time are displayed then press F4 enter Using the F2 and F3 up and down keys enter the current time and date information Press F4 enter to save the settings then press F1 ESC to return to the main menu Command Password Password protection is used to limit the
105. he RS232 port is used for connection to a personal computer for setting up The RS 485 port supports IGM Net and Modbus J Bus protocols and maps the operation of the UPS including status alarms and data voltages currents frequency power power factor temperatures etc Figure 80 OC485 Web card 9 2 5 Table 31 NX communication options On the UPS Physical Labeled LCD screen Monitoring description ID Name under Settings Devices Baud of port of Port controlled by supported rate Comments Multiport 4 any Relaycard int any Top Intellislot 2 Comm 1 Not simui iih Intellislot On Monitor Board I ot simu taneous WI OCWEBLB 2400 Multilink in RS232 1 Modbus Jbus 2400 Multiport 4 any Relaycard int any Middle Intellislot 1 Comm 2 Not simii iih Intellislot On Monitor Board ot simultaneous WI OCWEB LB 2400 Multilink in RS232 2 Modbus Jbus 2400 Multiport 4 any Bottom Intellislot 3 Comm 3 Relaycard int any Intellislot On Monitor Board OCWEB LB 2400 Modbus Jbus 2400 Top m Not simultaneous with Web DB9 port RS232 1 Comm 1 Multilink Serial 9600 card in top Intellislot Service Not simultaneous with Web DB9 port RS232 2 Comm 2 9600 card in middle Intellislot Remote Alarm Monitor Status and alarm conditions are available on an optional remote alarm monitor RAM panel that is driven by volt free alarm status contacts fro
106. he desired test Press enter F4 When prompted enter each password digit with up arrow F2 and use right arrow F3 to access next field Press F4 when all digits have been entered 3 Wait until the test completes This tests updates the battery information used to calculate the expected back up time displayed during AC input failure and the battery capacity percentage when compared to a new battery displayed in normal mode 4 Stop test If required the test may be stopped before completion by selecting Stop Test in the Commands window For more details on how to operate the UPS control panel refer to 8 0 Operator Control Panel and Display 83 Operating Procedures 7 5 7 5 1 7 6 UPS Self Test 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 UPS Self Test Procedure 1 Select Commands window on the UPS front panel Use the right or left arrow keys to navigate to the Commands window 2 Select desired Test Use page F1 and up down arrow keys F2 to highlight the desired test Press enter F4 When prompted enter each password digit with up arrow F2 and use right arrow F3 to access next field Press enter F4 when all digits have been ente
107. he load volt age frequency After the inverter is ready the UPS connects to the load the inverter indicator becomes steady green and the output indicator turns green Check that no Warning message is displayed in the top right corner of the LCD Monitor and the status of the indicators as follows LED LED Function Status 1 Rectifier indicator green 2 Battery indicator off 3 Bypass indicator off 4 Inverter indicator green 5 Output indicator green 6 Alarm indicator off The UPS is now operating in NORMAL mode 88 Operating Procedures 7 9 7 10 Shutdown Procedure Complete UPS and Load Shutdown This procedure must be followed to completely power down the UPS and LOAD power switches isolators and circuit breakers will be opened and power will be removed from the load In multi module systems perform each step of the procedure in every UPS module before proceeding to the next step A CAUTION The following procedure will switch off all power to the load equipment 1 Press the EPO Emergency Power Off button at the UPS front panel only This will disable Rectifier Inverter Static Switch and Battery operation The Load will be de energised NOTE Except in an emergency situation do not press any remote EPO button 2 Open the UPS door to gain access to the main power switches 3 Open the Rectifier input power switch Q1 Open external battery circuit
108. inutes whichever is greatest 2 Atlow input voltage the UPS recharge capability increases with load decrease up to the maximum capacity indicated 3 Maximum currents listed are for end of discharge voltage of 1 67 V cell for 240 cells 117 Technical Specifications 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 1 380 400 415 V Rated AC Voltage V ac three phase four wire with neutral referenced to the bypass neutral Frequency Hz 50 60 11095 for 60 min o 12595 for 10 min Overload rated 150 for 1 min 22596 for 200 msec Fault Current 96 rated 320 current limitation for 200 msec Non linear load capability 1 96 rated 100 Neutral current capability rated 17096 15296 13596 ns 2 1 balanced load Steady state voltage stability 5 2 100 unbalanced load Transient voltage response 6 96 5 lt 1 linear load Total Harmonic Voltage Distortion lt 3 5 non linear load 380V THDV 4 9 4 0 non linear load 400V 4 5 non linear load 415V Synchronisation Window Hz Rated frequency 2 Hz selectable 0 5 to 3Hz Slew Rate Max change rate of 1 Hz Hz sec SSe synch frequency selectable 0 1 to 3Hz s single UPS 0 2Hz sec paralleled UPS Inverter Voltage
109. is inserted in the top bay NOT PERMITTED between RS 232 x D B9 devices and OCWeb OC485 cards i e Serial MultiLink software will not work from RS232 1 DB 9 when OCWeb card is inserted in the top bay c Monitor board firmware version will be m131 or greater The version may be verified from the UPS LCD refer to 8 0 Operator Control Panel and Display Gland plate for cable exit 110 Options For Assembly Inside the UPS Cabinet 9 21 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 same status information and all measured parameters for display via a Web browser This card is supported in the top middle and bottom Intellislot bays Figure 77 OC Web Card data summary window F Liebert OpenComms Web Card Microsoft Internet Explorer File Edit View Favorites Tools Help e Back Forward Stop Refresh Address http 142 100 150 244 amp EMERSON Network Power monitor 5 Summary Device Information M aU Legend pcdes ouo l m Normal is Marginal F ault Absent Output Active Alarms No Alarms Present Yosoisiyt Copyright Liebert Corporation 2000 2004 02 21 A 52 Geer Thoms winzip Po Enza
110. ises a separate cabinet containing additional bat teries that can be connected to the UPS to increase its battery run time Battery cabinets and batter les are usually shipped separately 60 200kVA UPS The 60 to 200kVA consist of a single cabinet without any internal battery Usually with 60 to 200kVA UPS installations the batteries are contained in a purpose built battery cabinet which sits alongside the main UPS equipment Batteries are accessible in the external cabinet from the front making it unnecessary to allow for side access Moving the Cabinets A WARNING Ensure that any equipment used to move the UPS cabinet has sufficient lifting capacity The UPS is fitted with casters Take care to prevent the NX from moving when unbolting the unit from its shipping pallet Ensure that adequate personnel and lifting aids are available when removing the shipping pallet Ensure that the UPS weight is within the designated surface weight loading of any handling equip ment See Table 35 UPS and optional cabinets battery cabinets top cable entry cabinets etc can be handled by means of a forklift or similar equipment The UPS cabinet also can be moved short distances by its casters NOTE Care must be taken when maneuvering units fitted with batteries Keep such moves to a minimum Single Module UPS Installation 1 4 5 1 4 6 1 4 7 1 4 8 1 4 9 1 5 Clearances The Liebert NX has no ventilation grilles at eith
111. it 10 15 or 20 default 15 Bypass voltage tolerance 96 V ac Lower limit 10 20 30 or 40 default 20 delay time to accept steady bypass voltage 10 sec Bypass frequency tolerance 96 2 5 5 10 or 20 default 10 Synchronisation Window Hz Rated frequency 2 Hz selectable 0 5 to 3Hz 1 Factory set to 400V 380 or 415V selectable by commissioning engineer 2 Factory set to 50Hz 60 Hz selectable by commissioning engineer Bypass condition ignored when UPS set as frequency converter 119 Ensuring The High Availability Of Mission Critical Data And Applications Emerson Network Power the global leader in enabling business critical Technical Support Service continuity ensures network resiliency and adaptability through a family of technologies including Liebert power and cooling technologies that protect and support business critical systems Liebert solutions employ an adaptive architecture that responds to changes in criticality density and capacity Enterprises benefit from greater IT system availability operational flexibility and reduced capital equipment and operating costs While every precaution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions 2006 Liebert Corporation All rights reserved thr
112. itch It is assumed that the installation 1s complete the system has been commissioned by autho rized personnel and the external power isolators are closed 81 Operating Procedures In multi module systems perform each step of the procedure in every UPS module before proceed ing to the next step WARNING Mains Voltage will be applied to UPS output terminals This procedure results in mains voltage being applied to the UPS output terminals solate and attach warning labels to any downstream load connections as applicable No operator serviceable parts are located behind covers that require a tool for removal Only qualified service personnel are authorised to remove such covers 1 Openthe 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 output isolation switches where used LCD becomes active and after initialization the UPS output is powered from the bypass with the bypass and load indicators turned on The UPS Mimic LED s will indicate refer to Figure 67 LED LED Function Status 3 Bypass indicator Green 5 Output indicator Green 2 Battery indicator Red 6 Alarm indicator Amber red 3 Close the Rectifier AC Input Power Switch Q1 The Rectifier indicator flashes on the UPS mimic panel during the startup of rectifier and becomes steady green once the rectifier rea
113. ks involved in mainte nance work to a minimum Inside the box are connection bars for power cables arriving from the UPS and from the battery NOTE The control cables from the UPS unit to the controller board must be made using a 5 core shielded cable located in a separate conduit to that containing the battery power cables The control signal cable is connected to the circuit breaker controller board through the terminal board cable shield must be earthed to prevent induced noise affecting the control operation and a sepa rate safety earth must be connected between the UPS unit and circuit breaker box The configurations in Table 9 are available depending on the UPS power rating Table 9 UPS circuit breaker configurations Dimensions Weight UPS HxWxD mm in kg Ib Circuit Breaker 30 to 40 kVA 21 5 47 4 125A 4p 558x378x180 60 to 80 22x14 9x7 200A 4p 100 to 120 25 55 400A 4p 140 to 160kVA 825x530x195 30 66 400A 4p 200kVA 32 4x21x7 7 32 71 500A 4p Listed weights do not include packaging The BCB box contains a battery isolating circuit breaker and a circuit breaker controller board and offers the following features Short circuit and End Of Discharge protection The circuit breaker or internal UPS battery con tactor when fitted automatically opens when the EOD voltage is reached UPS Emergency Stop compatibility The circuit breaker or inter
114. kup not available Output Disabled UPS Output Disabled test mode 102 Operator Control Panel and Display 8 3 Prompt Pop Up Windows 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 Transfer with interrupt please confirm or cancel Meaning Inverter and Bypass supplies are not synchronised and any load transfer between the supplies will cause a brief load interruption The load is too high to be transferred with interrupt The total load must be less than the capacity of one unit to allow a parallel system to perform an interrupted transfer from bypass to inverter This Operation Leads to Output Shutdown Confirm or Cancel No alternative supply is available and any Inverter Off operation will cause the load to be de energised This operation leads to inverter overload confirm or cancel The turn off this inverter will lead to the overload of remaining inverter s in a parallel system Turn on more UPS to carry current load The number of paralleled inverters already turned on is insufficient to carry the existing load Battery will be depleted confirm Battery Capacity test discharges the battery 100 System self test finished everything is ok No action required System self test finished Pleas
115. ll dimensions are in mm 61 Installation Drawings Figure 47 Front view doors open 60 80kVA NX CURRENT TRANSFORMER 1 Parallel logic board 2 Monitor board 3 Battery start Interface 4 and 4a Battery Ground Fault detection optional 62 Installation Drawings Figure 48 Cable terminal layout 60 80kVA NX K GIL e sReo3XI60A e SIRCOSXISOA e sirco4x250A o o 9 O Q OTe OO e o SIRCO3XBOA e 6 amp amp o o 9 J 29
116. lti Module Installation 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 protective cover of each UPS module refer to Figure 44 The ring config uration ensures high reliability of the control refer to Figure 31 Figure 31 Connection of 1 N system parallel control cables Parallel Board Parallel Board X3 3 3 Hot Standby UPS Modules 3 3 4 Cabinet Installation Place the UPS modules side by side and interconnect as shown below The hot standby mode comprises two series connected UPS modules of the same rating One module 1s designated as the hot standby master downstream and the other module is designated as the hot standby slave upstream Their roles are determined by power connection and configuration soft ware In normal operation both slave and master operate in normal mode and the output from one upstream slave UPS feeds the bypass input to the other downstream master UPS The output of the downstream master UPS is connected to the critical load and is always synchronised to the out put of the upstream slave UPS If the inverter of the UPS connected to the load fails the inverter of the upst
117. ly and of the Battery supply UPS Shutdown UPS Shutdown output power down Check UPS Output Inverter off during normal startup diagnostics information only Generator Connected Generator active signal received Source share mode may be activated pending UPS settings BCB open Battery Circuit Breaker status open BCB closed Battery Circuit Breaker status closed Battery Float Charging Battery status Float charge mode Battery Boost Charging Battery status Boost charge mode Battery Discharging Battery status discharge mode Battery Period Testing Automatic periodic battery maintenance discharge test 2096 capacity discharge Batt Capacity Testing User initiated battery capacity discharge test 10096 capacity discharge Batt Maint Testing User initiated maintenance discharge test 2096 capacity discharge UPS System Testing User initiated UPS self test Inverter in Setting Inverter starting up and synchronising Rectifier in Setting Rectifier starting up and synchronising MBP T cabinet Fan Fault Maintenance bypass cabinet fans fault Ext Input TX Overtemp External Input Isolation Transformer Over Temperature Ext Output TX Overtemp External Output Isolation Transformer Over Temperature Battery Room Alarm Environment in Battery Room Needs Attention Rotary Sw Test Pos Rotary switch is in test position
118. m an optional relay alarm board 114 Technical Specifications 10 0 TECHNICAL SPECIFICATIONS 10 1 Conformity and Standards The UPS has been designed to conform to the following European and international standards Table 32 Compliance with European international standards Description Normative reference General and safety requirements for UPS used in operator EN 50091 1 1 IEC 62040 1 1 AS 62040 1 1 access areas Electromagnetic compatibility EMC requirements for UPS EN 50091 2 IEC 62040 2 AS 62040 2 Class A Method of specifying the performance and test requirements of EN 50091 3 IEC 62040 3 5 62040 3 UPS SS 111 The above mentioned product standards incorporate relevant compliance clauses with generic IEC and EN standards for safety IEC EN AS60950 electromagnetic emission and immunity IEC EN AS61000 series and construction IEC EN AS60146 series and 60529 For more details see below Description Normative reference Safety for Information technology equipment EN60950 IEC 60950 AS 60950 Degrees of protection provided by enclosures IP code EN 60529 IEC60529 AS 60529 Semiconductor convertors Part 1 General requirements and line IEC 60146 1 1 AS 60146 1 1 commutated convertors Part 1 1 Specifications of basic requirements Electromagnetic compatibility EMC immunity test IEC AS 61000 4 2 3 4 5 6 Limits for harmonic current emissio
119. must be double insulated Wire should be 0 5 1 5mm 16 20AWG stranded for maximum runs between 25 and 50 meters 82 164ft respectively 13 Single Module UPS Installation 1 8 4 Output Dry Contacts There are three output dry contact relays at the X1 slot see Figure 4 and Table 6 NOTE All auxiliary cables of terminal must be double insulated Wire should be 0 5 1 5mm 16 20AWG stranded for maximum runs between 25 and 50m 82 164 ft respectively Figure4 Output dry contacts and EPO wiring for firmware before M162 do x i 4 Jp r ji j L EPO H EPO L BFP S S 5 Table 6 Output dry contact relays for firmware before M162 Position Name Description J13 2 BFP O Bypass feedback protection relay normally open Closed when bypass SCR is shorted J13 3 BFP S Bypass feedback protection relay center J13 4 BFP C Bypass feedback protection relay normally closed Open when bypass SCR is shorted J21 2 INV O Inverter mode relay normally open Closed when UPS is in inverter mode J21 3 INV S Inverter mode relay center J21 4 INV C Inverter mode relay normally closed Open when UPS is in inverter mode J25 2 Main input fault relay normally open Closed when main input is in fault J25 3 ACF S Main input fault relay center J25 4 ACF C Main input fault relay n
120. n IEC AS 61000 3 2 3 4 3 6 The product standards in Table 32 incorporate relevant compliance clauses with generic IEC and EN standards for safety IEC EN AS60950 electromagnetic emission and immunity IEC EN AS61000 series and construction 560146 series and 60529 Table 33 Environmental characteristics Unit of Rated Power kVA Measurement 30 40 60 80 100 120 140 160 200 Acoustic noise level at 1 meter dBA 55 55 59 59 62 62 65 65 66 lt 1000 3280 above sea level Altitude of Operation m f power by 1 100m between 1000 and 2000 3280 6562 Relative Humidity 0 to 95 non condensing 0 10 40 32 10 104 Operating Temperature F Note Battery life is halved for every 10 increase above 20 UPS Storage Transport Temperature C F 20 to 70 4 to 158 Recommended Battery Storage F 20 to 30 4 to 86 Temperature 20 for optimum battery storage 115 Technical Specifications Table 34 Efficiency AC AC Input and output voltage 400VAC battery charged full rated linear load Unit of Rated Power kVA Measurement 30 40 60 80 100 120 140 160 200 Normal Mode dual conversion 89 90 91 91 90 6 914 92 5 92 7 92 8 Mode 94 94 8 94 3 95 95 95 6 95 5 95 7 95 7 In
121. nDnpUt 3 5 592 oderit ca a tue fedt ee Qu ee US cs ae ee bie hoes Rege Doe Bal ea ee Ties 119 vii EMERSON Network Power Liebert 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 peak performance If you already own and use a Liebert UPS then we are doubly honoured by your decision to continue this valued relationship Our philosophy is reflected in our mission statement Keeping Business in Business and with this we strive to contribute to the growth amp success of your business Please give us your valued feedback to help us realise our mission EMERSON NETWORK POWER viii Figurei Model number nomenclature NXa 0 0 Feature Set for Region A0 EMEA BO Aust NZ Revision L C0 Japan to Base P Unit 00 China NX Product Line pee Latin Amer FO Other 200 U Input amp gt 50 60Hz Voltage Voltage Code 220 380 F 230 400 U Output kVA 240 415 G UPS Single Module Liebert NXa UPS module ratings 30 amp with internal battery 60 80 100 120 140 160 200kVA without internal battery Example NXAOA0200U 200kVA module for Europe and Middle East 400V 230V outpu
122. nal Name Definition Battery Ground Fault Detection can be 21 Common programmed as Alarm or Pre Alarm 22 NC 24 NO The Battery ground fault detection set contains one CT current transformer and one DC sensitive residual current monitor The connection of this set for UPS is illustrated as follows Figure 74 Battery ground fault detection set connections imal 7 Transformer BCB or W1 A358 Contactor I re Battery x R Monitor Board 2 1 Socket Output Phase 1 11 DRY X3 Output Neutral Battery Ground Fault Detection Resys B470 AC230 The Battery Ground Fault Detection Set is assembled within the UPS cabinet 108 Options For Assembly Inside the UPS Cabinet 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 Openthe UPS door and locate the filters on the back side of the front door see Figure 75 2 Remove one bracket and loosen the screw on the second bracket The second bracket need not be removed see Figure 75 Remove the dust filter to be replaced Insert the clean filter Reinstall the bracket tightening the screw securely 6 Tighten the screw on the second bracket Or pa Figure 75 Replacing the dust fil
123. nal UPS battery contactor when fitted opens when the emergency stop button is pressed on the UPS front panel NOTE Q 30 to 40RVA UPS models fitted with internal battery and any UPS models fitted with a Battery Start kit contain an internal UPS battery contactor for automatic connection and disconnection of the batteries and the battery circuit breaker undervoltage coil is not used Refer to 2 5 Battery Control for details 40 Battery Installation Figure 24 Battery circuit breaker box 30 120kVA and 140 200kVA 6 M6 f T9 P9 30 120kVA el 8 R Circuit Breaker Box 3 4 e Dh D e o 925 E Sr o o UPS Jo 5 BATTERY e lo lo OR wx 6 140 200kVA Circuit Breaker Box Table 10 Battery circuit breaker box legend Key Component 1 Battery connections positive and negative Connections from UPS positive and negative Battery circuit breaker controller board Battery circuit breaker Plate for cabling holes User to size and cut holes for the cables to be used Wall mounting holes Earth bar Insulating cover
124. nd the battery stops charging or discharging If the input utility is present the UPS s controls will remain active however the output will be turned off To remove all power from the UPS the external feeder breaker should be opened 89 Operating Procedures 7 11 7 12 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 regular operation following an EPO action or for the following reasons Inverter Overtemperature Cut off Overload Battery Overvoltage excessive switching BYP XFER COUNT BLOCK etc When the user confirms that the fault is cleared amp the remote EPO signal is not active 1 Press the FAULT CLEAR button to let the system exit the Emergency Off state 2 Press the INVERTER ON button on the right side of the operator control panel for longer than 2 seconds NOTE UPS manufactured before March 2006 may first require a full power down i e manual opening of the input isolators for the Fault Clear to take effect NOTE Q The rectifier will start again and the bypass will begin to power the load for units with internal battery contactor installed the battery contactor will close The Rectifier indicator flashes while the rectifier is starting up When the rectifier enters the norm
125. nstallation Drawings 5 0 INSTALLATION DRAWINGS Figure 40 Electrical connections EARTH TO CUSTOMER SAFETY EARTH w2 v TO CRITICAL LOAD 380 415V 50HZ 5 N w3 POWER BUSBARS T BYPASS SUPPLY 380 415V 50HZ POWER CABLES U3 CONNEDTOR BARS THAT NEED TO BE REMOVED FOR DUAL INPUT SYSTEMS N W INPUT SUPPLY 3804151 5092 U Monitoring Board U2 PWR FOR monema O 0V swecap O 112 2 RS485 1 g 9 40 __ o 10 T 2 lo T 10 20 o TO e O BCB BOX ZO 30 o Le v BATTERY BEEN WO TO BATTERY BATTERY TEMPER P12 TRANSPORT GNDI P12 ONLINE IN DRV 55 Installation Drawings Figure 41 General arrangement 30 40kVA UPS Bose View Section AA 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 56 Installation Drawings Figure 42 Front view
126. nt Disconnect Open Maintenance bypass power switch open Maint Disconnect Closed Maintenance bypass power switch closed Bypass Disconnect Open AC bypass input power switch open Bypass Disconnect Closed AC bypass input power switch closed Output Disconnect Open UPS Output power switch open Output Disconnect closed UPS Output power switch closed Input Inductor Overtemp Overheating of Rectifier input filter choke Rectifier shuts down Battery discharges Balancer Fault Internal VDC and VDC off set by over 50V exceeding the Inverter DC offset compensation capacity Inverter shuts down Load transfers to bypass Balancer Over Current Internal Inverter DC off set balancing IGBT current rating exceeded 300 Inverter shuts down Load transfers to bypass Balancer overtemp Inverter voltage offset control choke overheated Inverter shuts down Load transfers to bypass Inv Inductor Overtemp Inverter output filter choke overheated Inverter shuts down Load transfers to bypass Batt Converter Fault Battery converter output voltage beyond limits or battery fuse failed Battery converter shuts down Battety backup not available Batt Conv Over Curr Battery converter overloaded Battery converter shuts down Battery backup not available Batt Converter Overtemp Overheating of Battery converter heatsinks Battery converter shuts down Battery bac
127. nters Isolation Status automatically parallel signaling and communication become masked and internal output becomes inhibited Power Off unit for maintenance Power On unit with Internal Output isolator Q5 open UPS enters Test Mode by configuration software setting Diagonosis or testing The UPS exits Test Mode by configuration software setting Output becomes inhibited because of Isolation Status 8 Return all switches of Unit 1 to the Normal position including Internal Output Circuit Breaker 1 When Internal Output isolator Q5 is closed unit will exit Isolation Status automatically parallel signaling and communication recovers output becomes enabled but interlocking works now 9 Turn On Inverter1 and join the parallel system WARNING Hazardous Battery Voltage SI No operator serviceable parts are located behind covers that require a tool for their removal Only qualified service personnel are authorised to remove such covers The UPS battery and connecting terminals remains energized at hazardous voltage levels at all times The battery is located behind protective covers that require a tool for their removal inside the UPS cabinet 30 and 40kVA models inside a free standing battery cabinet or on open racks inside a dedicated battery room that may be locked 87 Operating Procedures 7 8 Insertion of One Module in a Multi Module System This procedure is indicated to reintegrate a U
128. o 2006 Emerson Electric Co
129. o reveal the cable entry hole Top Cable Entry Optional Optionally a top cable entry extension may be used The cabinet extends the overall width of the UPS and permits connection of all incoming AC DC power cables from above The top cable entry option is fitted on the side of the UPS cabinet and is supplied without side panels the side cover from the UPS being used The cabinet with cables coming in from the top for the 30 40 kVA UPS must be positioned on the left side the cabinet for the 60 to 200 kVA UPS can be positioned on either side This facilitates cable entry through the top metal panel after the appropriate cable entry holes have been cut The top cable entry also includes the power connection cables between the cabinet and the UPS External Protective Devices Circuit breakers or other protective devices must be installed in the AC supply external to the UPS This chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed Single Module UPS Installation 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 guideline a thermomagnetic circuit breaker with an IEC 60947 2 trip curve C normal for 12596 o
130. oming mains supply UPS 1 synchronises to the output of the UPS 2 ensuring uninterrupted load transfer from UPS 1 to UPS 2 or vice versa This ensures that any specified load is supplied by a UPS while still providing a bypass path to cater for overloads Further the system can also be pro grammed to reverse UPS1 between Normal and Bypass Modes so that each UPS is equally utilised This interval is programmable from 1 to 4 320 hours 180 days Frequency Converter Mode The NX UPS can be programmed into frequency converter mode for either 50Hz or 60Hz stable out put frequency The input frequency may vary from 40Hz to 70Hz In this mode the static bypass oper ation is disabled and the battery becomes optional depending on any requirement to operate in battery mode stored energy mode Source Share Mode Co Generation NXa modules have the capability of fully supporting their critical load while limiting the amount of power taken from the incoming AC mains supply Any balance of power required is supplied by the UPS battery This feature is useful e g in applications where peak hour tariffs apply or where a gen erator smaller than needed feeds the UPS during mains outages The Source Share Mode is user acti vated and the ratio of the main AC input power is programmable from 2096 to 10096 of the rated UPS power 79 Operation 6 4 6 4 1 Battery Management Set During Commissioning Normal Function Constant charging
131. orised by the commissioning engineer Ensure correct polarity of string end connections to the battery circuit breaker and from the battery circuit breaker to the UPS terminals i e positive to positive and negative to negative but disconnect one or more battery cell links in each tier Do not reconnect these links and do not close the battery circuit breaker before authorised by the commissioning engineer 8 Refit all protective covers removed for cable installation 10 Single Module UPS Installation 17 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 computer or provide alarm signaling to external devices or for Remote Emergency Power Off REPO The monitor board arranged for this purpose is located on the rear of the operator access door The main features are Input and Output dry contacts signal one pair of contacts of relay Emergency Power Off control EPO Environmental parameter input interface User communication for data setting and user background monitor Intellislot interface Modem interface Temperature detect interface Figure 2 Monitoring board U2 auxiliary terminal block detail oL PWR J15 Modem X5 SNMP Card r Intellisiot 2 _ 2 XA
132. ormally closed Open when main input is in fault Figure5 EPO wiring for firmware M200 or later EPO NO EPO NC 1 8 5 Emergency Power Off Input The UPS has an Emergency Power Off EPO function that operates 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 4 is the remote EPO input interface The EPO has an NO NC contact point that becomes active when shorting terminals X2 3 and 4 or open terminal connection X2 2 and 1 If an external emergency stop facility is required it is connected terminals X2 1 amp 2 or X2 3 amp 4 of the auxiliary terminal block X2 It also 1s connected to the normally open or normally closed remote stop 14 Single Module UPS Installation switch between these two terminals using shielded cable see Figure 4 and Table 7 If this function is not used terminals X2 3 amp 4 must be opened and X2 1 amp 2 must be closed Table 7 EPO input contact relays Position Name Description J28 1 EPO NC EPO Activated when opened to J28 2 J28 2 EPO NC EPO Activated when opened to J28 1 J28 3 EPO NO EPO Activated when shorted to J28 4 J28 4 EPO NO EPO Activated when shorted to J28 3 NOTE The emergency stop action within the UPS shuts down the rectifier inverter and static bypass It does not internally disconnect the input power supply To disconnect
133. oughout the world Specifications subject to change without notice Liebert and the Liebert logo are registered trademarks of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 25230 07 06 Rev 5 Emerson Network Power M The global leader in enabling Business Critical Continuity ACPower Systems Embedded Computing Connectivity I Embedded Power DC Power Systems B Integrated Cabinet Solutions Outside Plant Web Site www liebert com Monitoring 800 222 5877 monitoring liebert com Outside the US 614 841 6755 Single Phase UPS 800 222 5877 upstech liebert com Outside the US 614 841 6755 Three Phase UPS 800 543 2378 powertech liebert com Environmental Systems 800 543 2778 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy 39 0499719111 Fax 39 049 5841 257 Asia 7 F Dah Sing Financial Centre 108 Gloucester Road Wanchai Hong Kong 852 2572220 Fax 852 28029250 EmersonNetworkPower com l Services Power Switching amp Controls I Site Monitoring Precision Cooling Surge amp Signal Protection Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric C
134. outputs that nevertheless are synchronised through a Load Bus Synchroniser LBS so that critical loads can be seamlessly transferred from one system to another See 6 3 Modes of Opera tion for more information 6 2 1 Features of NX Multi Module UPS Configurations 1 The hardware and firmware of single module UPS units is completely compatible with the requirements of a multi module system Multi module configuration is achieved merely through settings in configuration software and control cables 2 Parallel control cables are connected in a ring providing both performance and redundancy Dual bus control cables are connected between any two UPS modules of each bus The intelligent paralleling logic provides the user with maximum flexibility For example shutting down or starting up UPS modules in a parallel system can be done in any sequence Transfers between Normal and Bypass modes of operation are synchronised and self recovering e g following overloads and their clearance 3 The total load of the multi module system can be queried from each module s LCD 77 Operation 6 2 2 6 3 6 3 1 6 3 2 6 3 3 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 requirements apply 1 All UPS modules mu
135. ower off command or if low high DC busbar voltage is detected Refer to 2 5 Battery Control for details 19 Battery Installation 2 3 6 Moving the Battery Cabinets 2 3 7 WARNING Ensure any lifting equipment used in moving the cabinet has sufficient lifting capacity 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 NOTE Care must be taken when maneuvering units fitted with batteries Keep such moves to a minimum When the equipment has been finally positioned ensure the adjustable feet are set so that the battery cabinet will remain stationary and stable Cable Entry Cables enter the battery cabinet from either the top or the bottom Cable entry is made possible by removing a blanking piece fitted at the bottom to reveal the cable entry hole 20 Battery Installation 2 3 8 General Arrangement Drawings Refer to Figures 6 through 10 for general arrangement of battery cabinet models Figure6 Narrow battery cabinet with top and bottom cable entry locations 828 e bol FRONT VIEW FRONT VIEW Door Open E22 E ov TOP 6 5 VIEW ii 660 i at 10 i
136. pendent 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 single input loads an optional Static Transfer Switch may be added and the stan dard Load Bus Synchroniser activated Depending on the configuration follow the appropriate instal lation instructions for each system Place the UPS modules side by side and interconnect as shown below The objective of the Dual bus Synchronizer DBS is to keep the output of two independent UPS sys tems or parallel systems in synchronization One system is designated as the master the other is designated as the slave The operating modes covered comprise master and or slave operating inverter or bypass mode Figure 33 Typical dual bus system configuration with static transfer switch and Load Bus Synch Bypass Supply Bypass Supply Input Input Input Rectifier Rectifier Rectifier Input Rectifier I I I I I CHARGER 1 1 8 uuum EALLLI INTERMODULE p ____ E a CONTROL CABLE Load 3 4 2 External Protective Devices Refer to the instructions supplied in 1 0 Single Module UPS Installation 3 4 3 Power Cables The wiring of power cables is similar to that of single module system The Bypass and the Main input sources must be referenced to the same neutral potential and input earth le
137. put 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 UPS Battery Connection 60kVA Models and Above Option for 30 40kVA Models Connect the battery cables between the UPS terminals and its associated battery circuit breaker Observe the battery cable polarity NOTE When connecting the cables between the battery extremities to the circuit breaker always connect the circuit breaker end of the cable first WARNING If the load equipment will not be ready to accept power on the arrival of the commissioning engineer ensure that the system output cables are safely isolated at their ends Internal UPS Battery Connection 30 40kVA only 7 battery consists of a series string connection of 5 x 8 or 10 x 12V 6 cell battery blocks a Ensure that the eight or 10 battery blocks in each tier tray are interconnected b Connect the positive and negative cables to the UPS terminals c Pluginthe cables between the tiers d Ensure correct polarity battery string series connections 1 intertier and interblock connections are from positive to negative terminals Hazardous Battery Terminal Voltage 480VDC Ensure correct polarity of string end connections to the UPS terminals i e positive to positive and negative to negative but leave these UPS terminal cables disconnected until connection is auth
138. put supply with separate batteries and optional output bypass distribution 1 Dry contacts multiple UPS modules with distribution Connection of 1 N system parallel control cables Hot standby configuration 0 4 4 Typical dual bus system configuration with static transfer switch and Load Bus Synch Connections of a typical dual bus system utilising Load Bus External maintenance bypass cabinet with separate bypass Equipment arrangement UPS battery cabinet and top entry Isolation Transformer Cabinet ove pe RET A ku S Single input external isolation transformer Dual input external isolation transformer cabinet Output external isolation transformer Hleetrical connections etis Mete eR pe es e Red RUM SER oats Ree e General arrangement 30 40kVA Front view door open30 40kKVA 2 Cable terminallayout 30 40kVA Location of parallel logic board
139. re of the inverter heat sink is too high to keep inverter running This alarm is triggered by the signal from a temperature monitoring thermostat on the inverter bridge heat sink The UPS will recover automatically after a 5 minute delay from the disappearance of the overtemperature signal If the overtemperature condition is true then check for and verify 1 high ambient air temperature 2 blocked cooling airway 3 any fan failure 4 prolonged inverter overload Inverter Overtemp Fan Fault At least one of the cooling fans has failed At least one of the static switches of inverter side is open or short circuit This fault is Inverter STS Fail locked until power off At least one of the static switches of bypass side is open or short circuit This fault is Bypass STS Fail locked until power off Operation Invalid This record is registered following an incorrect operation At least one of the inverter output fuses is blown Inverter shuts down Load Output Fuse Fail transfers to bypass Control Power 2 Fail UPS operates but Redundant Control Power is not available The UPS is confirmed to be overload when the load arises above 105 nominal rating The alarm automatically resets once the overload condition is removed 1 Confirm that the alarm is true by checking the load percent indicated on the LCD Unit Over load panel to determine which phase is being overloaded 2 If the alarm is true measure
140. ream slave UPS supplies the load through the downstream master UPS bypass circuit system can be programmed to cycle the downstream master UPS between normal mode and bypass mode so that both UPS units are equally exercised NOTE If it is a hot standby system the master must be turned on first 3 3 2 External Protective Devices Refer to the instructions in 1 0 Single Module UPS Installation 48 UPS Multi Module Installation 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 bypass and the main input sources must be refer enced to the same neutral potential and input earth leakage monitoring devices if installed must be located upstream of the common neutral sinking point Refer to the instructions in 1 0 Single Mod ule UPS Installation No control wires other than those specified for the single module configuration are required Figure 32 Hot standby configuration Input Distribution Upstream Downstream Mains L1 Bypass L1 Mains L1 Bypass 11 L2 L3 N L2 L3 N L2 L3 N L2 L3 N F 3 Charger 6712713 9 7 UPS1 Output 49 UPS Multi Module Installation 3 4 Dual Bus System 3 4 1 Cabinet Installation The Dual Bus System consists of two inde
141. red 3 Wait until the test completes After 5 seconds a popup window will appear to showing the result of this diagnosis Rectifier Inverter Monitor OK or Fault 4 Stop test If required the test may be stopped before completion by selecting Stop Test in the Commands window For more details on operating the UPS front panel see 8 0 Operator Control Panel and Display Maintenance Bypass Procedure and UPS Shutdown The following procedure transfers the load supply from being protected by the UPS into being connected directly to the AC input bypass supply though a maintenance bypass switch This switch is either internal Q3 located behind the front door for Single module 1 1 redundant multi module UPS applications external located in the bypass cabinet for 1 1 capacity and 1 N redundant multi module UPS applications refer to Figure 64 In multi module systems perform each step of the procedure in every UPS module before proceed ing to the next step CAUTION Risk of Load Interruption Except in emergency situations so as not to risk a short interruption in powering the load before initiating this bypass procedure confirm that no WARNING status is displayed in the top right corner of the UPS Monitor If a WARNING status is displayed the operator will be prompted to confirm enter or cancel ESC any action that can lead to load interruption 1 Press INVERTER OFF direc
142. res located in the lower sides of the cabinets In general it is recommended that the inter connecting cables be fitted to the batteries within their particular level before fitting the inter level connecting cables followed finally by the cables to the circuit breaker An insulating shroud should be fitted to each terminal after its connection has been made When connecting the cables between the battery string ends to the optional circuit breaker always connect the circuit breaker end of the cable first Battery Room Design Whatever the type of mounting system selected the following conditions should be noted Cell Layout 1 Whichever battery mounting system is used the batteries should be arranged to prevent the pos sibility of simultaneous contact with two exposed live parts having a potential greater an 150V Where this is not possible insulated terminal shields must be installed and insulated cables must be used for connections Service Platform 2 The service platform or duckboard must be slip proof insulated from the floor and at least one metre 39 in wide Connections 3 All connections must be as short as possible Battery Protection Fuses Circuit Breaker 4 The battery circuit breaker is generally installed at the front of the battery room See 2 5 Bat tery Control for details on connecting the circuit breaker box available for the Liebert NX Figure 23 Battery room design
143. ront LCD When not activated the values are hidden 95 Operator Control Panel and Display 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 Table 21 UPS system window Description Explanation Liebert NX UPS family name 2005 10 22 YYYY MM DD see Settings menu for other date formats 12 30 36 Current Time 24 hr HH MM SS format 200kVA 3x3 200kVA UPS rated output 3 x 3 3 phase input and output Configuration Single ECO Master Slave or Unit 1 Single single double conversion unit ECO single stand by unit with double conversion fall back Master master in a 1 1 Hot Stand By system Slave slave in a 1 1 Hot Stand By system Unit 4 1 of max 6 double conversion units in a parallel system Status Normal Warning or Fault Normal UPS operating Normal Warning System attention required e g AC Input Failure Fault UPS Fuse or Hardware Failure Menu and Data Window Use the horizontal arrow keys to navigate between any of the selectable menu and data windows Table 22 Descriptions of UPS menus and data window items Menu Type Item Type Explanation L N voltage V Phase voltage L N current A Phase current Mains
144. s of Level 2 Table 2 IEC60068 3 3 and complies with UBC 1994 Seismic Zone 4 for strong to very strong earthquakes Degree of Protection for the UPS Enclosure The standard degree of protection is IP20 A canopy option for IP21 is also available Battery Start Facility The battery start kit consists of controls a push button a charging resistor and an internal battery contactor that replaces any end of discharge battery circuit breaker trip control The battery is perma nently connected to the UPS DC input 105 Options For Assembly Inside the UPS Cabinet Figure 72 Battery Start Option for UPS with external battery po 16 2 FO 2 Temperature LO 3 Transport Contactor O OT6 4 LM35 Soft In Battery Black Start Battery Cabinet Manual Press Button 6 Batt N Detection Board 4 NOTE Battery contactor opens after Inverter shutdown at end of battery discharge Battery Start settings disable the end of discharge trip command to external battery circuit breaker 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 provide droop type current compensation for the oth erwise inherent current dispersion due to SCR and cable impedance differences Table 26 Bypass current sharing inductors dimensions values Dimensions Inductor UPS
145. sbar connections Battery Circuit Breaker BCB controller board Battery Installation Figure 13 SENXAONBCNALCB eps LT Kei MAIA LNOYS 4aAe7 U x 7 LE l Re ala LE KE C 102 154 0411540 001 21520 001 1541 O0 AC LHRY NOT LAT LHN 001 XdN 10J papaau 10051428 Y 10 uorpuny aseapa1 lluMue lNpie0q 04102 gg Jeurayxe 0 RI aq pjnous uodsuer pieoq jonuo ou J 7 10 suonnusul 04 828 01191 asea q ILON _ 801X 090 pieoq onuo gg 5 m 22 S wx gt vooc sz 10828 28 Battery Installation Figure 14 SENXAONBCNALF E __ g 1 WU W O W W 1009 x oS 4 O7 s i i y Kei MAIA LNOYS 100 1540 OLI Z1SdNOL 21SdN 001 2 LSdN 00ZAZLHN OPLAZLHN 00 1 XdN 04 p SN Z 8 2Wa Xa pieoq 04102 01 sjeufis ayy uonetoid 104 pasn ale sesnj UeuM 310N pci uodsuendua X08 808 OL X08 8801 sasn4 uueuissng VOOCNOCL dMd 00M
146. see Figures 26 and 27 Figure 26 Single temperature sensor and monitor board U2 Temperature Sensor Name W2 L 30m Monitor Board 02 12V BAT T GND UPS Cable W2 is packed with the temperature sensor 43 Battery Installation Figure 27 Multiple temperature sensors battery circuit breaker box and UPS module Type W3 L 5m Type W3 L 30m Temperature Sensor BCB Control _ Temperature gt 2 Sensor 1 NC X106 12 z oUr l GND 2 Cable W3 L 5m is packed with the temperature sensor Cable W3 L 30m is packed with the BCB box 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 transport board illustrated in Figure 27 is TMP 2 The signal cables in the Figure 27 must be shielded and double insulated 4 Thetemperature monitoring cable must be less than 10m while the signal transmission distance of the transport board must be less than 100m amp 44 UPS Multi Module Installation 3 0 UPS MULTI MODULE INSTALLATION 3 1 General The installation of a multi module UPS configuration must follow the installation procedure for a sin gle UPS modul
147. service person nel These serial ports are shared with the optional Web browser SNMP ModBus and relay cards Refer to Table 31 regarding compatibility of simultaneous use Intellislot Web Browser SNMP ModBus and Relay Cards Interface There are three interface slots available for optional Web browser SNMP ModBus and Relay cards as illustrated in 9 0 Options For Assembly Inside the UPS Cabinet External Bypass Switch Interlock EXT Maint X3 1 amp 2 on UPS Parallel Board M3 leave open if no external bypass switch is used Provides external maintenance bypass interlock protection for the UPS Short circuit means external bypass closed EXT Out X3 3 amp 4 on UPS Parallel Board leave shorted if no external output switch is used Pro vides external output interlock protection for paralleled UPS modules Short circuit means external output switch closed NOTE UPS Parallel Board M3 is located behind protective covers accessible after opening the UPS front door removal of this barrier requires the use of a tool and is restricted to service personnel Jumper JP1 located next to X3 needs be removed X3 3 amp 4 to work properly 16 Battery Installation 2 0 BATTERY INSTALLATION 2 1 Introduction 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 ba
148. sioning 80 6 4 T Normal Functia e esan Ee T Teen mb pee E e 80 6 4 2 Advanced Functions Software Settings Performed by the Commissioning Engineer 80 Battery Protection settings by commissioning 80 OPERATING PROCEDURES 81 Introduction 19 Pectore EVEN AT PS SUSCI SAGE er M PI PMID 81 Startup in Normal Mod re oberen Uo eR ORG E piede 81 Startup into ECO 83 Battery Test Mode Procedures wA doe e GANE TR 83 WAL Test Procedure oii lya anu ce as eet aue uet ebd t 83 UPS SelizLestv tod e Ue e e Kr s Ri oA ELE 84 154 UPS Sel Test Proc dure vise sk Cer NEL Exe T AD Rer REG CUR 84 Maintenance Bypass Procedure and UPS 84 Isolation of One Module in a Multi Module 86 771 Multi Module Systems With External Output 86 7 7 2 Multi Module System Without External Output Circuit Breaker 1 87 Insertion of One Module in a Multi Module System 88 Shutdown Procedure Complete UPS and Load Shutdown 89 Emergency Shutdown With
149. ss than 12 5ms 60H27 Maintenance Mode Manual Bypass A manual bypass switch is available to ensure continuity of supply to the critical load when the UPS becomes unavailable e g during a maintenance procedure This manual bypass switch is fitted in all UPS modules and rated for full load of one module ECO Mode Single UPS Only If ECO mode is selected the double conversion UPS operation is inhibited at most times for the pur pose of saving energy In this mode of operation not unlike UPS of line interactive or stand by tech nology the bypass is the preferred source and only when the voltage and or frequency of the bypass supply are beyond pre defined and adjustable limits the critical AC load is transferred to the inverter This transfer takes place with an interruption of less than 3 4 of an electrical cycle e g less than 15ms 50Hz or less than 12 5ms 60H27 Parallel Redundancy Mode System Expansion For higher capacity or higher reliability or both the outputs of up to six UPS modules can pro grammed for directly paralleling while a built in parallel controller in each UPS ensures automatic load sharing Hot Standby Mode This is an alternative 1 1 redundancy application that ensures higher availability or better usage control or both Two UPS are connected in Hot Stand By mode as follows UPS 1connects to the criti cal load and UPS 2 connects to the bypass of UPS 1 The remaining AC inputs are connected to the inc
150. st be of the same rating and must be connected to the same bypass source 2 The bypass and the main input sources must be referenced to the same neutral potential 3 Any RCD Residual Current monitoring device if installed must be of an appropriate setting and located upstream of the common neutral bonding point Alternatively the device must monitor the combined 4 wire rectifier and split bypass input currents of the system Refer to the High Leakage Current Warning on page 1 4 Theoutputs of all UPS modules must be connected to a common output bus Optional isolation transformers are available for applications where sources do not share the same neutral reference or where the neutral is not available 5 Passive bypass current equalising chokes are available as an option in systems comprising more than three parallel redundant UPS modules or two or more parallel capacity UPS modules Modes of Operation The NX UPS is an on line double conversion reverse transfer UPS that permits operation in these modes Normal Mode Battery Mode Stored Energy Mode Auto Restart Mode Bypass Mode Maintenance Mode Manual Bypass ECO Mode Parallel Redundancy Mode Hot Standby Mode Frequency Converter Mode Normal Mode The UPS inverter continuously supplies the critical AC load The rectifier charger derives power from the AC mains input source and supplies DC power to the inverter while simultaneously FLOAT or BOOST charging its
151. stem If so power on these UPSs and check if the alarm disappears 2 Press Fault Clear push button Parallel Comm Fail Battery Overtemp The Battery temperature is over limit Check the battery temperature and ventilation Ambient Overtemp The Ambient temperature is over limit Check the ventilation of UPS room Battery Fault Battery detected faulty Reserved Replace Battery Battery test failed Battery should be replaced Before the end of discharge battery undervoltage pre warning should occur After this pre warning battery should have the capacity for 3 minutes discharging with full load The time is user configured from 3 to 60 minutes Shut down the load in time Battery Low Pre warning Inverter turned off due to low battery voltage Check the utility failure and try to Battery End of Discharge recover it Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown Mains Volt Abnormal Check the input line to neutral voltage amplitude of rectifier Mains Voltage is undervoltage with derated load Mains Undervoltage Check the input line to line voltage amplitude of rectifier Mains frequency is out of limit range and results in rectifier shutdown Check the rectifier s input voltage frequency Rectifier Fault Rectifier detected faulty Rectifier shuts down Battery discharges Mains Freq Abnormal The temperature of heat sink is too high to keep the rectifier
152. sting Figure 29 Typical 1 N system block diagram with common input supply with separate batteries and optional output bypass distribution panel Supplied by Others Input Mains y 7 Supply L1 L2 L3 N Supply L1 L2 L3 N UPS2 QQI1EXT QUPS Distribution Cabinet To Load Internal maintenance bypass switch Q3 must be removed when the load exceeds the capacity of one UPS module 46 UPS Multi Module Installation Figure 30 Dry contacts multiple UPS modules with distribution panel Input Distribution M3 Board M3 Board M3 Board X3 x3 X3 Ext Maint Ext Out Ext Maint Ext Out Ext Maint Ext Out Q2Ext To Load 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 Bypass and the Main input sources must be referenced to the same neutral potential and input earth leakage monitoring devices if installed must be located upstream of the common neutral sinking point Refer to the instructions in 1 0 Single Module UPS Installation The length and specification of power cables including the bypass input cables and UPS output cables should be the same This facilitates load sharing when operating in bypass mode 47 UPS Mu
153. t Options Narrow battery cabinet Model Identification NXAOBCN Note Specify UPS kVA rating 3 4 or 5 shelves fuse or circuit breaker protection Wide battery cabinet NXAOBCW Battery Circuit Breaker Box NXAOBCB Specify UPS kVA rating Battery Start Kit NXAOUFXBB Battery Ground Fault detection kit NXAOUFXBGF Battery temperature probe for external battery NXAOUFXBTS Maintenance bypass cabinet separate bypass input NXAOMBX Specify total system kVA Transformer cabinet NXAOTCX Specify UPS kVA amp I O Voltage Fan Redundancy kit NXAOUFXRF Specify UPS kVA rating Seismic Anchor kit NXAOUFXSAN Bypass current sharing inductance NXAOUFXBK Dual bus control cable 05 10 15 metres NXAOUFXD Specify length in metres Parallel control cable kit 05 10 15 metres NXAOUFXP Specify length in metres Relay Card On Bat Bat Low Sum UPS Fail RELAYCARD INT Intellislot plug in cards 3 slots available Relay Card 4 4 sets On Bat bat Low MULTIPORT 4 Webbrowser TCPIP SNMP Card OCWEB LB Jbus Modbus Card OC485CARD RAM Remote Alarm Monitor NXAOCFXRAM Requires RELAYCARD INT Modem card NXAOCFXMOD Large Battery Cabinet NXAONBCL Maintenance bypass cabinet separate bypass input NXAONMBX Transformer cabinet NXAONTCX Air Filter One Filter NXAOUFXARF Dual Bus Extension Kit 50 150 Meters NXXXXMLBSKI
154. t Clear Reset button 5 Load AC Output Silence On Off Audible Alarm Mute 6 UPS Status and Alarm indicator 7 Audible Alarm Buzzer _ F1 F4 Help LCD Menu keys 8 Emergency Power Off Button cover 92 Operator Control Panel and Display 8 1 1 8 1 2 Mimic Power Flow The LED mounted on the mimic flow chart represent the various power paths and current UPS oper ational status Table 13 Rectifier indicator 1 Green Rectifier in Normal Operation Flashing Input AC Normal but rectifier not operating Green Red Rectifier Failed Off Rectifier Not operating Input AC Not Available or out of normal range Table 14 Battery indicator 2 Green Battery Normal but discharging and powering the load Flashing Battery End of Discharge pre warning Green Battery abnormal Failed Absent or Polarity Reversed or Battery Red Converter abnormal Failed overcurrent overtemperature Off Battery and Converter Normal Battery charging Table 15 Bypass indicator 3 Green Load on Bypass power Red Bypass not available out of normal range or Static bypass switch fault Off Bypass Normal load not on bypass Table 16 Inverter indicator 4 Green Inverter Normal and powering the load Flashing Inverter ON starting up synchronising Green or standing by ECO mode Red Inverter failed Off Inverter not operating Table 17
155. t access key on the UPS front panel The UPS inverter will shut down and the load is supplied through the Static Bypass supply The UPS Mimic indicator Inverter ON 4 will extinguish the Status LED 6 turns on 2 In Single module 1 1 redundant multi module UPS Close the internal maintenance bypass power switch Q3 and any external maintenance bypass switch if used 3 In 1 N redundant or 1 1 capacity multi module UPS Close the external maintenance switch only 4 Maintenance Bypass supply is now in parallel with the UPS Static Switch supply 5 The display window will show messages reflecting the actions taken i e Maintenance Bypass closed etc 6 Open output power switch Q5 This ends the Bypass Procedure The load is now powered directly from the Maintenance Bypass supply NOTE The load equipment is NOT protected from AC supply aberrations Proceed with the following steps to shutdown the rectifier and battery 84 Operating Procedures 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 NOTE Do not press any remote EPO button 8 Open the Rectifier input power switch Q1 and Static bypass input power switch Q2 9 When an external battery is connected open external battery circuit breaker This
156. ters lM Bracket MOOT ms screw Bracket EE 9 1 8 Redundant Fan for Power Module x ka x K In addition to the monitored fans installed in the UPS cabinet to ensure sufficient cooling power at various operation modes with 10096 rated load a redundant power module fan set can be supplied thus ensuring continuity of UPS operation even with the failure of some fans No extra footprint is required 109 Options For Assembly Inside the UPS Cabinet 92 Communication and Monitoring Figure 76 Communication bays and cable location DB 9 Monitor Board Location Preferred Device This Location RS 232 1 DB 9 COM Port 1 Serial MultiLink Software Port Setting 2400 Baud RS 232 2 DB 9 COM Port 2 Service Access Software Port Setting 9600 Baud Location Preferred Device This Location Top Bay Relay Card no port setting req d Mid Bay Multiport4 no port setting req d Bottom OCWeb LB 485 port setting 2400 Baud __ ___ a a2 eee J Suggested routing of customer supplied communication cables 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 Serial Multilink software will work from RS232 1 DB9 also when relay card
157. to 477V 304V to 208V output de rated from 99 to 70 Frequency Hz 50 60Hz tolerance 40Hz to 72Hz Power Factor full load 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 half load 0 98 0 98 0 98 0 98 0 98 0 98 0 98 0 98 0 98 Input power rated 3 27 2 35 9 53 3 71 0 88 8 107 122 139 174 maximum 32 9 43 0 64 6 85 2 107 128 159 182 228 Input current rated 39 52 77 103 128 154 177 201 252 maximum 48 62 93 123 154 185 231 264 330 Harmonic Current Distort with THID linear or non linear balanced FL 3 3 3 3 3 3 3 5 3 3 load and at input THVD lt 2 Duration of progressive power 10 seconds to reach full rated current walk in selectable 5 through 30 seconds in 5 second intervals 1 Rectifier operates at any of the rated supply voltages and frequencies without further adjustment 2 At305V input mains the UPS maintains the specified output voltage at rated load without discharging a previously charged battery 3 EN 50091 3 at rated load and input voltage 400V battery charged 4 EN 50091 3 at rated load and input voltage 400V battery charging at maximum rated power 116 Technical Specifications Table 37 Intermediate DC circuit battery Unit of Rated Power kVA Measurement 30 40 60 80 100 120 140 160 200 Nominal 480V VRLA Float charge is 540V Battery bus voltage VDC Range 400V 6
158. ttery can maintain supply to the load in the event of a mains failure is limited by the ampere hour capacity of the battery blocks and 1n some cases this results 1n several strings being connected in parallel The NX 30 40kVA has internal batteries but longer run time is available by using an external bat tery cabinet The battery cabinet will be supplied in one of the following forms 1 Complete installation comprising the battery cabinet batteries and protective device 2 Battery cabinets and protective device only batteries supplied by others 3 Battery cabinet only batteries and circuit breaker supplied by others 30kVA to 40kVA UPS models contain an internal battery compartment that can accommodate up to 42 blocks 24 Ah 12V batteries The battery bank may be disconnected from the UPS for maintenance or service The circuit breaker can be switched ON or OFF manually and further battery isolation control is achieved through the use of either a battery circuit breaker undervoltage coil or through an automatic contactor inside the UPS 17 Battery Installation 2 2 2 3 2 3 1 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 1s potentially hazard ous The battery installation must be segregated from all but appropriately qualified maintenance personnel by locating the c
159. ttery is not connected Records history log Displays all records in the history log Language choices for text displayed User may select any of 12 languages for LCD text 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 amp time Set the date and time Comm1 baud rate Communication baud rate setting for Intellislot 1 Comm2 baud rate Communication baud rate setting for Intellislot 2 Comms baud rate Communication baud rate setting for Intellislot 3 Communication address This setting is applicable to RS485 communication mode Settings Communication mode Communication Mode Setting Callback times When Intellislot 1 Communication mode is Modem this parameter sets the number of times a number is redialed to send an alarm notification Phone No 1 When Intellislot 1 Communication mode is Modem this is the first phone number to be dialed to send an alarm notification Phone No 2 When Intellislot 1 Communication mode is Modem this is the second phone number to be dialed to send an alarm notification Phone No 3 When Intellislot 1 Communication mode is Modem this is the third phone number to be dialed to send an alarm notification Command password User can modify the command password Baterymaitenanceieet 77899 De IN _ CENE APE Ad E0 ba dh System test dw ear a 55 tne eae SES st p t sting a b
160. verter Efficiency DC AC battery at nominal voltage 480VDC and full rated linear load Battery Mode 96 93 93 94 94 94 94 94 94 94 Heat Losses amp Air Exchange Ventilation Normal Mode kW 3 0 3 6 4 7 6 3 7 9 9 5 10 8 11 8 14 5 ECO Mode kW 1 5 1 6 2 0 2 6 3 5 4 3 7 0 7 6 9 9 No Load kW 1 3 1 4 1 9 2 4 3 0 3 7 4 9 4 9 5 6 Forced air cooling L sec 333 333 458 458 500 500 671 671 721 front intake top exhaust M3 hr 1200 1650 1800 2415 2595 Table 35 Mechanical characteristics Unit of Rated Power kVA Measurement 30 40 60 80 100 120 140 160 200 4 1600 600 825 1800 700 825 1800 1000 825 Dimensions HxWxD mm in 63 x 23 6 x 32 5 70 8 27 5 32 5 70 8 x 39 4 x 32 5 312 341 401 445 720 720 960 960 1060 without Batteries kg lb 688 752 884 981 1587 1587 2116 2116 2337 T Pantone 877 Silver grey Finish Colour eqvl Becker Silver epoxy polyester powder 041 37 2 20 Protection Degree IEC 60529 finger proof with front doors open or closed Values listed are the mass of the units with options added ground fault sensor bypass share inductors and redundant fans Table 36 Rectifier AC input mains Rated power kVA 30 40 60 80 100 120 140 160 200 Rated AC Input Voltage three phase and Tecra e um the bypass input Input voltage tolerance VAC 305V
161. w egy cue mr e E S ENS eat es A 96 Descriptions of UPS menus and data window items 96 UPS m ssages voe ee adio Stt m eue e e bate veu SEEN de bae 98 Prompt windows 103 Seisimic anchor SIZING un was eR Y E races See SC DEAE RE COGO CHUA ee 105 Bypass current sharing inductors dimensions 106 Dry contact fault alarm signal is available for remote monitoring 108 Relay Card pin 112 SiteNet MultiPort4 Intellislot pin 113 NX communication eee hs 114 Compliance with European international 115 Environmental 115 Efficiency A CIA GC oud a de I ede UR ROMA ge d eed 116 Mechanical 4 116 Rectifier AC input 1 0 116 Intermediate DC circuit 117 Inverter output to critical 1 4 5 0 118 Bypassd3
162. y redundant control power supply boards Each of them takes inputs from the AC and DC sources When one of the sources or even if one of the control power boards fails the UPS system can still operate normally This feature further enhances the reli ability of the system Socket Outlet One single phase Shuko type universal outlet of current handling capability provides nominal UPS output voltage of up to current capacity for the ease of testing commissioning amp servicing of the UPS 76 Operation 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 between any paralleled UPS Figure 64 1 N multi module UPS with external maintenance bypass switch Qin UPS3 Qin UPS2 Qin UPS1 Qin Ext Byp SUPPLIED BY OTHERS INPUT MAINS SUPPLY BYPASS MAINS SUPPLY L1 L2 L3 N INPUT MAINS SUPPLY BYPASS MAINS SUPPLY L1 L2 L3 N INPUT MAINS SUPPLY L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N UPS3 OUTPUT L1 L2 L3 N Qout UPS2 Qout UPS3 Gout UPS1 Qout all UPS Distribution Cabinet Further single unit or 1 N groups may be configured as distributed redundant systems with inde pendent

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