Manuale d’uso / di manutenzione del prodotto NX UPS System del fabbricante Liebert
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AC P ow er For Bu siness-Critical Con tinuit y Li eber t N X U P S Us er Man ual–10-30kV A, 400V , 50/60Hz.
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i T ABLE OF CONTENTS 1.0 S INGLE M ODULE UPS I NST ALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii 2.4 Battery Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.4.1 Connection Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii 5.5 Battery Protection (settings by co mmissioning engineer) . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 6.0 O PERATING P ROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6.1 Introduction .
iv FIGURES Figure i Model number nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi Figure 1 Residual current circuit breakers (RCCB) symbols . . . . . . . . . . . . . . . . . .
v TA B L E S Table 1 Maximum steady state AC and DC cu rrents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 2 Distance from floor to connectio n po int on the equipment . . . . . . . . . . . . . . . . . .
vi Figure i Model number nomenclature UPS Single Module Liebert NXe UPS module ratings: 10, 15, 20, 30kVA (with in ternal battery) Example: NXE0A0010U = 10kV A module for Europe and Midd le East, 400V.
1 SAFETY PRECAUTIONS This manual contains informatio n concerning the in stallation and operation of this Emerson Network Power Liebert NX ™ Uninterruptible Power System (UPS). This manual shou ld be read before commencing installa tion. The UPS must be commissioned an d serviced by an engineer approved by the manufacturer (or agent).
2 User-Serviceable Part s All equipmen t maintenance and servicing proce dures involving inte rnal access requires the use of a tool and should be carried out only by trai ned pers onnel. There are no user-serviceable parts behind covers requiring a tool for removal.
Single Module UPS Installati on 3 1.0 S INGLE M ODULE UPS I NST ALLATION 1.1 Introduction This following se ction describes the requiremen ts th at must be taken into account when p lanning the positioning an d cabling of the Liebert NX uninterru ptible power supply and related equipme nt.
Single Module UPS Installati on 4 1.3 Location 1.3.1 UPS Room The UPS and its i nternal battery is intende d for indoor installa tion and should b e located in an env i- ronment with clean air and with adequate ventilation to keep th e ambient temperature within the specified operating range (see Table 30 ).
Single Module UPS Installati on 5 1.4 Positioning The cabinet is mounted on four castor-wheels for ea se of positioning and for short distance movement. Jacking feet are provided to prevent the UPS from mo ving once it has been wheeled to its final posi- tion.
Single Module UPS Installati on 6 1.4.4 Clearances The Liebert NX has no ventilation grilles at either side of the UPS. To enab le routine tightening of power terminations within the UP S, in addition.
Single Module UPS Installati on 7 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 transi ent current pulses, and • must have an average sensitivity , adjustable between 0.
Single Module UPS Installati on 8 1.6 Power Cables The cable design must comply with the voltages and currents provided in this sect ion, follow local wir- ing practices and take into considerati on the environmental conditions (tem perature and phys ical support media).
Single Module UPS Installati on 9 1.6.1 Cable T ermination Once the equipment has been finally positioned and secured, connect the power cables as described in the followin g procedure. Refer to the appropriate cable connection drawing in 4.0 - Installation Drawings .
Single Module UPS Installati on 10 Output System Connections 6. Co nnect the syste m output cables between the UPS output (oA-oB-oC-N terminals) and the critical load a nd tighten the connections t o 5 Nm (M6 Bolt). Ensure correct phase rotation. Internal UPS Battery Connection 7.
Single Module UPS Installati on 11 1.7 Control Cables and Communication 1.7.1 Monitor Board Features Based on your site’s specific needs, the UPS may re quire auxiliary connections to manage the bat.
Single Module UPS Installati on 12 1.8 Dry Cont act s The UPS provides input dry contacts and output dry contacts. 1.8.1 Input Dry Cont acts There are several input dry contacts at the X3 slot.
Single Module UPS Installati on 13 1.8.3 External Circuit-Breaker Interfac e J10 is the interface to any external battery circuit breaker (BCB). Figure 4 Jumper connect ion for BCB interface Ta b l e 5 External circuit-breaker interface Position Name Description J10.
Single Module UPS Installati on 14 1.8.4 Output Dry Cont act s There are three output dry contac t relays at the X1 slot (see Figure 5 and Table 6 ) Figure 5 Output dry cont acts and EPO wiring T able 6 Output dry cont act relays Position Name Description J13.
Single Module UPS Installati on 15 1.8.5 Emergency Power Off Input The UPS has an Emergency Power Off (EPO) function that opera tes by a button on the control pa nel or by a remote contact provided by the use r. The EPO button is under a hinged, clear plastic shi eld.
Single Module UPS Installati on 16 Serial Port s RS232-1 and RS232-2 RS232-1 provides serial data and i s intended for direct use with Liebert MultiLink monitoring and server shutdown software. RS232-2 provid es serial data and is in tended for use by authori zed commissioning and service pe rson- nel.
Battery Installation 17 2.0 B ATTERY I NST ALLATION 2.1 Introduction The UPS battery bank consist s of battery blocks connec ted in series to provide a D.
Battery Installation 18 2.2 Safety Special care should be take n when working with the batteries asso ciated with the Liebert NX UPS system. Whe n all the cells ar e conne cted together, the battery terminal voltage is potenti ally hazard- ous.
Battery Installation 19 2.3 Battery Cabinet 2.3.1 Introduction This cabinet can also be used in conjunction add itional cabinets, to provide the necessary accommoda- tion required by the larger ce lls associated with system’s having a long autonomy time.
Battery Installation 20 2.3.6 Battery T emperature Sensor (Optional) The optional external battery temperature sensor kit contains one pro be an d one temperature trans- port board a s illustrated in Figure 7 . It is connected to the UPS Monitor Board.
Battery Installation 21 2.3.9 General Arrangement Drawings Refer to Figures 8 and 10 for general arrangement of battery cabinet models. Figure 8 Battery cabinet bottom cable entry location 828 620 1400 100 700 83 82,5 250 All dimensions are expressed in millimeters.
Battery Installation 22 Figure 9 Battery cabinet with fuse or optional circuit breaker locat ions Bottom cable entry.
Battery Installation 23 Figure 10 Battery cabinet internal layout Minimum service space 65mm 3 Layers: Largest battery dimensions: 201x170x190 (LxWxH) Positions of captive nuts for grille mounting 1 Layer: Largest battery dimensions: 201x170x190 (LxWxH) Captive nut M6 Hex flange screw M6x16 1.
Battery Installation 24 Figure 1 1 Battery cabinet, bott om entry 2.4 Battery Power Cables 2.4.1 Connection Principles The following notes, in conjunction with the diagrams, illu strate the broad principles to be followed when fitt ing and co nnecting th e ma jority of battery installations.
Battery Installation 25 2.4.2 Fitting the Batteries 1. In general, at least 10mm (3/8") must be left unobstructed on all vertical sides of the battery blocks to permit fr ee air mo vement around the cells.
UPS Multi-Module Installation 26 3.0 UPS M ULTI -M ODULE I NST ALLATION 3.1 General The installation of a multi-modu le UPS configuratio n must follow th e installation pr ocedure for a sin- gle UPS module with the additional requ irements detailed in this chapter.
UPS Multi-Module Installation 27 3.2 Paralleled UPS Modules The basic installation procedure of a parallel system comprising two or more UPS modules is the same as that of single module system. The following sections only introduce the installation proce- dures specific to th e parallel system.
UPS Multi-Module Installation 28 Figure 15 Dry cont act s, multiple UPS modules with distribution p anel 3.2.2 External Protective Devices Refer to the instructions in 1.0 - Single Module UPS Installation . 3.2.3 Power Cables The wiring of power cables is simi lar to that of single module sy stem.
UPS Multi-Module Installation 29 3.2.4 Control Cables Intermodule Control Shielded and d ouble insulated control cabl es availabl e in lengths of 5, 10 an d 15 meters must be must be interconnected in a ring config uration between UPS modules as sh own below.
UPS Multi-Module Installation 30 3.3.3 Power Cables The wiring of power cables is simil ar to that of si n gle module syste m 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.
UPS Multi-Module Installation 31 3.4 Dual Bus System 3.4.1 Cabinet Inst allation The Dual Bus System consists of two independent UP S configurations each consisting of one or more UPS modules. Dual Bus Systems are high av ailability configurations suit able for loads with multiple input terminals.
UPS Multi-Module Installation 32 3.4.4 Control Wires For Liebert NX to NX dual bus configuration, in terconnect the optional DBS cable between any DBS ports of tw o parallel syst ems as illustr ated in Figure 19 . Figure 19 Connections of a typical dual bus system utilising Load Bus Synch 3.
Installation Drawings 33 4.0 I NST ALLATION D RAWINGS Figure 20 Electrical connections X5 X3 X4 X1 X2 Ext EPO BCB Monitor Board Input MBC External Battery Batt UPS Parallel Board T o Customer ’s Saf.
Installation Drawings 34 Figure 21 General arrangement—10 -30kV A UPS module FRONT VIEW LEFT SIDE VIEW Leveling feet Detail A, rear of unit shown without side panel Lev e 10mm dia threaded mounting holes 86.
Installation Drawings 35 Figure 22 10-30kV A NX front view with doors open 1 2 3 4 5 External Battery Input Bypass Input Main Input Output T1 T2 1) Main/Bypass Input terminal (T1) 2) Battery /Output t.
Installation Drawings 36 Figure 23 Location of p arallel logic board M3 Battery Start Interface NXe 10-30kV A T op View Parallel Logic Board.
Installation Drawings 37 Figure 24 Internal battery layout and co nnecting—GP12120 F2 (12AH/12V) Figure 25 Internal battery layout and co nnecting—LC-R127R2PG1 (7.2AH/12V) NOTE 1. TYPICAL USED FOR:GP 12120 F2 (12AH/12V) BA TTERY INTERCONNECT WIRING DIAGRAM 2.
Installation Drawings 38 Figure 26 Internal battery layout 136 mm 160 mm 160 mm 160 mm 160 mm 151 mm Battery 562mm 347mm.
Operation 39 5.0 O PERATION 5.1 Introduction Liebert’s NX™ Uni nterruptible Power System system provides continuous, high-quality AC power to your business-critical equi pment, such as telecomm unications and data processing equip ment.
Operation 40 5.1.2 St atic T ransfer Switch The circuit blocks labeled Static Switch in Figure 27 contain el ectronically controlled switching cir- cuits that enable the critical load to be connected to either the inve rter output or to a bypass power source via the static bypass line.
Operation 41 5.1.4 Redundant Control Power Supply Board The UPS is equipped with two identical and full y redundant control power supply boards. Each of them takes inputs from the AC and DC sources. When one of the sources or eve n if one of the control power boards fails, the UPS syste m can still operate normally.
Operation 42 5.2.1 Features of NX Multi-Module UPS Configurations 1. The hardware and firmware of single module UPS units is co mpletely compat ible with the requirements of a multi -module system. Multi-mo dule conf iguration is ach ieved merely through settings in configuration software.
Operation 43 5.3.4 Byp ass Mode If the inverter overlo ad capacity is exceeded, or if the inverter becomes unavailable for any reas on, the static transfer switch will perform a transfer of the load from the inverter to the bypass source, with no interruption in power to the critical AC load.
Operation 44 5.4 Battery Management—Set During Commissioning 5.4.1 Normal Function • Constant charging current— Current can be set up to limit charging power. • Constant boost voltage boost (if applicable ) — Voltage of boost charging can be set as required by the type of battery.
Operating Pro cedures 45 6.0 O PERATING P ROCEDURES 6.1 Introduction The NX can operate in any of four modes , as shown in Table 9 . This section provides instructions on switching between modes, resetting the UPS, switch ing the inverter On and Off and perf orming other operations.
Operating Pro cedures 46 6.2 UPS St artup The NX must be fully installed and commissioned be fore startup, and external power isolators must be closed. Once those general conditions are met, the UPS may be started. 6.2.1 St art-Up Procedure To start the UPS f rom a fully powere d-down condition : 1.
Operating Pro cedures 47 5. Turn the rotary switch to NORMAL, then press the INVERT ER ON control button for 2 seconds. The inverter will start and the inve rter indicator will flash green. After the inverter is ready, the UPS transfers from bypass to inverter, the bypass indicator turns off and the inverter and load indicators turn on.
Operating Pro cedures 48 6.3 Switching the UPS from No rmal to Maintenance Byp ass Follow the procedure below to transfer the load fr om the inverter output to the Maintenance Bypass line of the UPS. This procedure assumes that UPS is operating normall y.
Operating Pro cedures 49 6.5 Powering Down the UPS a nd Maintaining Power to Load If the UPS needs to be shut down completely while maintaining powe r to the load, follow these steps: 1. Perform Steps 1 through 5 in 6.3 - Switching the UPS from Normal to Maintenance Bypass .
Operating Pro cedures 50 6.6 Emergency Shut down With EPO This circuit has been de signed to switch off the UPS i n emergency conditions (i. e., fire, flood, etc.). The system will turn off the rectifie r, inverter and stop powering the load immediately (including t he inverter and by pass), and the batte ry stops charging or discharging.
Operating Pro cedures 51 6.9 Language Selection The LCD menus and data display are availa ble in 12 languages: Chinese, Dutch, English, French, German, Italian, Japanese, Polish, Portuguese, Ru ssian , Spanish and Swedish.To sele ct a different language tha n the one being displa yed: 1.
Operating Pro cedures 52 6.12 Isolating One Mod ule in a Multi-Module System 1. With all UPS modules in the system in Norm al mode, open the ex ternal output isolator. 2. Press the UPS EPO to isolate the batteries. 3. Open the UPS door to ga in access to the main power switches SW1 and CB1.
Operating Pro cedures 53 6.13 In serting One Module into a Multi-Module System This procedure is indicated to reintegrate a UPS modu le that has been previous ly isolated from other modules of a group of parall eled UPS modules.
Operator Control Panel and Disp lay 54 7.0 O PERATOR C ONTROL P ANEL AND D ISPLAY 7.1 Introduction The operator control p anel and display is located on the front door of the UPS. The panel is the access point for operator control and monitoring of all me asured parameters, UPS and battery status and of event and alarm logs.
Operator Control Panel and Disp lay 55 7.1.1 Mimic Power Flow The LEDs mounted on the mimic flow chart repres ent the various power paths and current UPS oper- ational status.
Operator Control Panel and Disp lay 56 7.1.3 Direct Access Push Buttons (Keys) Press and hold Direct Acce ss key briefly until acknowledged by a single beep.
Operator Control Panel and Disp lay 57 The function of keys F1 to F4 is shown by a self -explanatory icon as appropriate for the particular window. As shown in Figure 32 a b o v e , p r e s s i n g F .
Operator Control Panel and Disp lay 58 7.1.5 Det ailed Description of Menu Items The description that follows refers to the graphic LCD monitor window shown on Figure 32 . UPS System Window: This fixed-pane window displays current time and date and identifies the UPS, its configuration and its status.
Operator Control Panel and Disp lay 59 System Sout (kVA) Sout: App arent power Pout (kW) Pout: Active power Qout (kVAR) Qout: Reactive power Single unit, no parallel data When configured as a single unit , UPS has only nati ve load, no system load.
Operator Control Panel and Disp lay 60 Current Record Window Keeps a log the eve nts that resulted in the current mode of operation. Ignores transient conditions that have been resol ved. Use “page” (F1) and up / down arrow to read the eve nts. For a complete history log, refer to the Records tab of the Me nu and Data Window.
Operator Control Panel and Disp lay 61 Bypass Abnormal This alarm is triggered by an inverter softwa re routine when the ampl itude or freq uency of bypass voltage exceeds the limit. This alarm automati cally resets onc e the bypass voltage goes norma l.
Operator Control Panel and Disp lay 62 Unit Over load Timeout The UPS is confirmed to over load and the overload times out. Note 1: the highest loaded phase will indicate overl oad timing-out first. Note 2: When the timer is active then alarm “uni t overload” should also be active as the load is above nominal.
Operator Control Panel and Disp lay 63 Fault Reset Fault clear direct access key pressed Alarm Silence Silence On/Off direct access key pressed Turn On Fail Inve rter failed to turn on when Inverter On direct access key was pressed. This may be as a result of Invalid Operation (Maintenance byp ass on) or DC bus or rectifier not ready.
Operator Control Panel and Disp lay 64 7.3 Prompt (Pop-Up) Windows The prompt window is displayed duri ng the operation of the system to alert the user to certain condi- tions and / or to require user confirmation of a command.
Operator Control Panel and Disp lay 65 7.5 Default Screen Saver This default screen is displ ayed following at leas t 2 minutes of operation wi th no new alarm. After another delay, the backlight turn s off. Press any key (F1-F4 or Help) to reactivate the screen.
Options—For A ssembly Inside the UPS Cabinet 66 8.0 O PTIONS —F OR A SSEMBLY I NSIDE THE UPS C ABINET Several items of optiona l equipment are available for connection to the Liebert NX UPS. These are described in this section of the manua l and should be fitted prior to i nstallation.
Options—For A ssembly Inside the UPS Cabinet 67 8.1.2 Redundant Fan for Power Module In addition, to en sure sufficient cooling power at variou s operation modes with 100% rated load, a redundant power m odule fan set ca n be supplied, t hus ensuring contin uity of UPS operation even with the failure of some fans.
Options—For A ssembly Inside the UPS Cabinet 68 8.1.3 OC Web Card - SNMP/HTTP Network Interface Card This network interface card provid es all real-time data and status information as SNMPv1 trap s .
Options—For A ssembly Inside the UPS Cabinet 69 8.1.4 Relay Card The Relay card provides voltage-free contact closur es for remote monitoring of alarm conditions.
Options—For A ssembly Inside the UPS Cabinet 70 Figure 41 SiteNet MultiPort4 Intellislot pin configuration T able 27 SiteNet MultiPort4 Intellis lot pin assignment Pin Assignment Description 1 Low B.
Options—For A ssembly Inside the UPS Cabinet 71 8.2 OC485 W eb Card – Modbus, Jbus, IGM Net The OpenComms 485 Card facilitates SiteScan We b or Buildin g Management Systems monitoring. The RS232 port is used for connection to a personal computer for setti ng up.
Options—For A ssembly Inside the UPS Cabinet 72 8.2.2 Dust Filter for 10-30kV A Installing the two dust filters in the Li ebert NX requires onl y a Phillips screwd river. Each filter is held in place by a bracket on either side of each filter. To install each fi lter: 1.
T echnical Specifica tions 73 9.0 T ECHNICAL S PECIFICATIONS 9.1 Conformity and St andards The UPS has been designed to confo rm to the following E uropean and internati onal standards: The product st.
T echnical Specifica tions 74 T able 32 Mechanical characteristic s Rated Power, kVA Unit of Measurement 10 15 20 30 Dimensions, WxDxH mm (in) 600x700x1400 (23-9/16x27-5/8x55) Mass Mass without batter.
T echnical Specifica tions 75 T able 34 Battery Intermediate DC Circuit Rated Power, kVA Unit of Measurement 10 15 20 30 Battery Bus Voltage VDC Nominal: 480V (VRLA Float charge is 540V) Range: 400V - 616V Number of Lead-Acid Cells Nominal 240 = [40 x 6-cell (12V) blocks] Maximum 264 = [44 x 6-cell (12V) blocks] Float V oltage V/cell (VRLA) 2.
T echnical Specifica tions 76 T able 36 Byp ass mains input Rated power, kVA Unit of Measurement 10 15 20 30 Rated AC Voltage 1 VAC 380/400/415 V three-phase four-wire, sharing neutral with the rectif.
T echnical Specifica tions 77 NOTES.
T echnical Specifica tions 78.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Liebert NX UPS System è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Liebert NX UPS System - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Liebert NX UPS System imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Liebert NX UPS System ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Liebert NX UPS System, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Liebert NX UPS System.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Liebert NX UPS System. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Liebert NX UPS System insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
