Emerson Liebert NX User Manual
  1. Manuals
  2. Brands
  3. Emerson Manuals
  4. UPS
  5. Liebert NX
  6. User manual

Emerson Liebert NX User Manual

10-20, 400v, 50/60hz, 3x1
Hide thumbs Also See for Liebert NX:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Installation Manual
Liebert NX
UPS
™
User Manual–10-20, 400V, 50/60Hz, 3x1
AC Power
For Business-Critical Continuity™

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Liebert NX and is the answer not in the manual?

Questions and answers

Related Manuals for Emerson Liebert NX

Summary of Contents for Emerson Liebert NX

  • Page 1 AC Power For Business-Critical Continuity™ Liebert NX ™ User Manual–10-20, 400V, 50/60Hz, 3x1...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS ..........1 MPORTANT AFETY RECAUTIONS...
  • Page 4 Battery Cabinet ............17 2.3.1 Introduction .
  • Page 5 Modes of Operation............41 5.3.1 Normal Mode .
  • Page 6 Liebert NX Remote Alarm Monitor ........
  • Page 7 Figure 33 Graphic LCD monitor windows and keypad ......... . 55 Figure 34 Menu tree .
  • Page 8 Used for extension in length or dual bus NX150MLBSKIT (150m) Dual Bus Extension Kit 50-150 Meters arrangement between Nx and non-Nx NX050MLBSKIT (50m) sources Specify number of blocks. Consult Emerson BDS 40 or Individual Battery Monitoring Network Power representatives for BDS 256 complete configuration...

  • Page 9: Important Safety Precautions

    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.
  • Page 10 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.

  • Page 11: Single Module Mups Installation

    NOTE Three-phase, 4-wire input supply required. The standard Liebert NX UPS is suitable for connection to 3-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...

  • Page 12: Location

    (see Table 30). All 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 and hot air is released through the grilles at the back.

  • Page 13: Positioning

    Single Module UPS Installation Positioning The cabinet is mounted on four castor-wheels for ease of positioning and for short distance movement. Jacking feet are provided to prevent the UPS from moving once it has been wheeled to its final posi- tion.

  • Page 14: Clearances

    1.4.4 Clearances The Liebert NX has no ventilation grilles at either side of the UPS. To enable routine tightening of power terminations within the UPS, in addition to meeting any local regulations, Liebert recom- mends providing adequate clearance in the front of the equipment for unimpeded passage of person- nel with the doors fully opened.

  • Page 15: External Battery

    Single Module UPS Installation 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...

  • Page 16: Power Cables

    Single Module UPS Installation Power Cables The cable design must comply with the voltages and currents provided in this section, follow local wir- ing practices and take into consideration the environmental conditions (temperature and physical support media). For cable entry terminal, refer to Figure 23. WARNING Before starting the UPS, ensure that you are aware of the location and operation of the external isolators that connect the ups input/bypass supply to the mains distribution panel.

  • Page 17: Cable Termination

    Single Module UPS Installation 1.6.1 Cable Termination NOTE 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 Department. See the back page of this manual for contact information.

  • Page 18: Control Cables And Communication

    Single Module UPS Installation Output System Connections Connect the system output cables between the UPS output (oA-N terminals) and the critical load and tighten the connections to 4.5 Nm (M8 bolt). Ensure correct phase rotation. 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.

  • Page 19: Dry Contacts

    Single Module UPS Installation Figure 2 Auxiliary terminal block detail monitoring board (U2) Modem SNMP Card Intellislot 2 Intellislot 1 Intellislot 3 Dry In The black square ( on each slot indicates Pin 1. Dry Contacts The UPS provides input dry contacts and output dry contacts. 1.8.1 Input Dry Contacts There are several input dry contacts at the X3 slot.

  • Page 20: Maintenance Bypass Cabinet Interface

    Single Module UPS Installation 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 ter- minal 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.

  • Page 21: Output Dry Contacts

    Single Module UPS Installation Figure 4 Jumper connection for BCB interface UPS Monitoring Board Aux – N.O. Aux – N.O. Battery Circuit Breaker 1.8.4 Output Dry Contacts There are three output dry contact relays at the X1 slot (see Figure 5 and Table 6). The relay con- tacts are suitable for extra-low voltage applications up to 1A.

  • Page 22: Emergency Power Off Input

    Single Module UPS Installation 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 5, is the remote EPO input interface.

  • Page 23: External Bypass Switch Interlock

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

  • Page 24: Battery Installation

    Liebert representative for battery run times. Safety Special care should be taken when working with the batteries associated with the Liebert NX UPS system. When all the cells are connected together, the battery terminal voltage is potentially hazard- ous. The battery installation must be segregated from all but appropriately qualified maintenance personnel by locating the cells in a key-lockable cabinet or in a purpose-designed, dedicated battery room.

  • Page 25: Battery Cabinet

    Battery Installation 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. The internal batteries are always connected through power fuses to the UPS and segregated terminal bars are available for connection to an external battery.

  • Page 26: Dimensions

    Figure 7. It is connected to the UPS Monitor Board. NOTE A temperature sensor for internal batteries is installed as a standard feature of the Liebert NX. Figure 7 Single temperature sensor and monitor board-U2...

  • Page 27: Cable Entry

    Battery Installation 2.3.8 Cable Entry Cables enter the battery cabinet from the bottom. Cable entry is made possible by removing a blank- ing piece fitted at the bottom to reveal the cable entry hole. 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 Bottom View...

  • Page 28: Figure 9 Battery Cabinet With Fuse Or Optional Circuit Breaker Locations

    Battery Installation Figure 9 Battery cabinet with fuse or optional circuit breaker locations Bottom cable entry...

  • Page 29: Figure 10 Battery Cabinet Internal Layout

    Battery Installation Figure 10 Battery cabinet internal layout Positions of Captive Nuts Minimum Service Space 65mm for Grille Mounting Captive Nut M6 Hex Flange Screw M6x16 DETAIL B 3 Layers: 1 Layer: Largest Battery Dimensions: Largest Battery Dimensions: 201x170x190 (LxWxH) 201x170x190 (LxWxH)

  • Page 30: Battery Power Cables

    Battery Installation Figure 11 Battery cabinet, bottom entry Item # Item Name Grille steel Grille steel Middle pillar Cover module BC Small NXf Ground bus Captive nut M4 Captive nut M6 Screw flange M6x16 Nut flange M6 Screw M6x16 countersink Spring washer M4 Flat washer M4 Screw mushroom head cross M4x12...

  • Page 31: Fitting The Batteries

    • 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 12 Battery room design...

  • Page 32: Battery Control

    Battery Installation Battery Control Battery temperature sensor cables are connected between UPS auxiliary terminal block X3 BCB, the Battery Temperature sensor and the battery as shown in Figure 7. Cables connected to X3 BCB must contain a protective earth wire or a shield, 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.

  • Page 33: Ups Multi-Module Installation

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

  • Page 34: Paralleled Ups Modules

    UPS Multi-Module Installation 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 15.

  • Page 35: External Protective Devices

    UPS Multi-Module Installation Figure 16 Dry contacts, multiple UPS modules with distribution panels Input Distribution Panel UPS 1 UPS 2 UPS N M3 Board M3 Board M3 Board Ext. Maint. Ext. Out Ext. Maint. Ext. Out Ext. Maint. Ext. Out 1 2 3 4 1 2 3 4 1 2 3 4...

  • Page 36: Control Cables

    UPS Multi-Module Installation 3.2.4 Control Cables Intermodule Control Shielded and double insulated control cables available in lengths of 5, 10 and 15 meters must be must be interconnected 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 24).

  • Page 37: Power Cables

    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.

  • Page 38: Dual Bus System

    UPS Multi-Module Installation Dual Bus System 3.4.1 Cabinet Installation The Dual Bus System consists of two independent UPS configurations each consisting of one or more UPS modules. Dual Bus Systems are high availability configurations suitable for loads with multiple input terminals. For single input loads an optional Static Transfer Switch may be added and the stan- dard Load Bus Synchroniser activated.

  • Page 39: Control Wires

    3.4.4 Control Wires For Liebert NX to NX dual bus configuration, connect the optional DBS cable to any DBS ports of two parallel systems as illustrated in Figure 20. Figure 20 Connections of a typical dual bus system utilising Load Bus Synch...

  • Page 40: Installation Drawings

    Installation Drawings NSTALLATION RAWINGS Figure 21 Electrical connections Earth To Customer’s Safety Earth Ext. Maint. Parallel Board To Critical Load Ext. Out Power Cables Main/Bypass Input Modem- Monitor Board Supply SNMP RS-485 Input J28-1 X2 Ext EPO J28-2 External Battery J28-3 J28-4 Batt...

  • Page 41: Figure 22 General Arrangement-10-20Kva Ups Module

    Installation Drawings Figure 22 General arrangement—10-20kVA UPS module 10mm dia threaded mounting holes 86.5 Leveler Detail A, rear of unit shown without side panel Leveling feet LEFT SIDE VIEW FRONT VIEW 8-M10 519.6 4-O50 415.2 142.5 1253 111.8 138.25 1) Air inlet grille 2) Air outlet grille 3) Adjustable fixing feet 4) Castors for maneuvering...

  • Page 42: Figure 23 10-20Kva Nx Front View With Doors Open

    Installation Drawings Figure 23 10-20kVA NX front view with doors open 1) Main/Bypass Input terminal (T1) 2) Battery /Output terminal (T2) 3) Input circuit breaker (CB1) 4) Rotary switch (SW1) 5) Monitor board (U2) External Battery Input Wire range for terminal blocks: Output 15/20kVA, 14-30mm 10kVA, 8-16mm...

  • Page 43: Figure 24 Location Of Parallel Logic Board M3

    Installation Drawings Figure 24 Location of parallel logic board M3 Battery Start Interface Parallel Logic Board NXf 10-20kVA Top View...

  • Page 44: Figure 25 Internal Battery Layout And Connecting-12Ah/12V

    Installation Drawings Figure 25 Internal battery layout and connecting—12AH/12V BOTT OM LA YER TO P L A YER Layer 5 Layer 4 Layer 3 Layer 2 Layer 1 W501 4pcs W500 34Pcs W503 W502 W51 1 W510 W515 W514 W513 W512 W506 W508...

  • Page 45: Figure 27 Internal Battery Layout

    Installation Drawings Figure 27 Internal battery layout 347mm 171mm 562mm 160mm 160mm 160mm 160mm Battery 139mm...

  • Page 46: Operation

    5.1.1 Split-Bypass Input Figure 28 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...

  • Page 47: Static Transfer Switch

    Operation 5.1.2 Static Transfer Switch The circuit blocks labeled Static Switch in Figure 28 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;...

  • Page 48: Redundant Control Power Supply Board

    Operation 5.1.4 Redundant Control Power Supply Board The UPS is equipped with two identical and fully 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.

  • Page 49: Features Of Nx Multi-Module Ups Configurations

    Operation 5.2.1 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. 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.

  • Page 50: Auto-Restart Mode

    Operation 5.3.3 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.

  • Page 51: Battery Management-Set During Commissioning

    Operation 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 in accordance with the manufacturers recommendation. For Valve Regulated Lead Acid (VRLA) batteries, maximum boost charge voltage should not exceed 2.4V / cell.

  • Page 52: Operating Procedures

    Operating Procedures PERATING ROCEDURES 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 NX can operate in any of four modes, as shown in Table 9.

  • Page 53: Ups Startup

    Operating Procedures UPS Startup The NX must be fully installed and commissioned before startup, and external power isolators must be closed. Once those general conditions are met, the UPS may be started. 6.2.1 Start-Up Procedure To start the UPS from a fully powered-down condition (see Figure 32 for location of mimic indicators and function buttons): 1.

  • Page 54: Verify Switching Between Operation Modes

    Operating Procedures 5. Turn the rotary switch to NORMAL, then press the INVERTER ON control button for 2 seconds. The inverter will start and the inverter 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.

  • Page 55: Switching The Ups From Normal To Maintenance Bypass

    Operating Procedures Switching the UPS from Normal to Maintenance Bypass Follow the procedure below to transfer the load from the inverter output to the Maintenance Bypass line of the UPS. CAUTION Before performing this operation, confirm that the UPS LCD displays “Normal.” If the LCD does not display “Normal,”...

  • Page 56: Powering Down The Ups And Maintaining Power To Load

    Operating Procedures Powering Down the UPS and Maintaining Power to Load NOTE An external Maintenance Bypass Cabinet must be installed before attempting to perform the following procedure If the UPS needs to be shut down completely while maintaining power to the load, follow these steps: 1.

  • Page 57: Emergency Shutdown With Epo

    Operating Procedures Emergency Shutdown With EPO This circuit has been designed to switch off the UPS in emergency conditions (i.e., fire, flood, etc.). The system will turn off the rectifier, inverter, static switch, battery circuit breaker and/or internal DC bus disconnection device and stop powering the load immediately (including the inverter and bypass), and the battery stops charging or discharging.

  • Page 58: Language Selection

    Operating Procedures Language Selection The LCD menus and data display are available in 12 languages: Chinese, Dutch, English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Spanish and Swedish.To select a different language than the one being displayed: 1. From the main menu, press the F1 (shift) key to move the cursor to the menu at the top of the screen.

  • Page 59: Isolating One Module In A Multi-Module System

    Operating Procedures 6.12 Isolating One Module in a Multi-Module System NOTE The Multi-Module system must have at least one UPS module redundant in the system and have an external output breaker installed with interlocking cables connected to the UPS module. 1.

  • Page 60: Inserting One Module Into A Multi-Module System

    Operating Procedures 6.13 Inserting One Module into a Multi-Module System This procedure is indicated to reintegrate a UPS module that has been previously isolated from other modules of a group of paralleled UPS modules. It is assumed that the installation is complete, the sys- tem has been commissioned by authorized personnel and the external power isolators are open.

  • Page 61: Operator Control Panel And Display

    Figure 32 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 Liebert NX 2006-10-22 17:32:20 Status 020kVA 3X1 Single...

  • Page 62: Mimic Power Flow

    Operator Control Panel and Display 7.1.1 Mimic Power Flow The LEDs mounted on the mimic flow chart represent the various power paths and current UPS oper- ational status. Table 12 Rectifier indicator—1 Green Rectifier in Normal Operation Flashing Input AC Normal, but rectifier not operating Green Rectifier Failed Rectifier Not operating, Input AC Not Available or out of normal range...

  • Page 63: Direct Access Push Buttons (Keys)

    LEFT RIGHT HELP ENTER Next Data Window Window Type 2 Escape DOWN Figure 33 Graphic LCD monitor windows and keypad 1 - UPS System Liebert NX 2006-10-22 17:32:20 20kVA 3X1 Unit #1 Normal Window 2 - UPS Menu Bypass Output...

  • Page 64: Figure 34 Menu Tree

    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 33 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’.

  • Page 65: Detailed Description Of Menu Items

    UPS System Window: This fixed-pane window displays current time and date and identifies the UPS, its configuration and its status. Table 20 UPS system window Description Explanation Liebert NX UPS family name YYYY-MM-DD (see Settings menu for other date formats) 2006-10-22 12:30:36 Current Time (24 hr HH:MM:SS format)
  • Page 66 Operator Control Panel and Display Table 21 Descriptions of UPS menus and data window items (continued) Menu Type Item Type Explanation Battery voltage (V) Battery bus voltage Battery current (A) Battery bus current Battery temperature (°C) Internal battery temperature °C Battery Remain Time Min.

  • Page 67: All Status And Event Messages Displayed On The Ups Front Panel

    Operator Control Panel and Display 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.
  • Page 68 Operator Control Panel and Display Table 22 UPS messages (continued) Message Description / Suggested Action (if any) This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass voltage 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”...
  • Page 69 Operator Control Panel and Display Table 22 UPS messages (continued) Message Description / Suggested Action (if any) 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.
  • Page 70 Operator Control Panel and Display Table 22 UPS messages (continued) Message Description / Suggested Action (if any) 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 be as a Turn On Fail result of Invalid Operation (Maintenance bypass on) or DC bus or rectifier not ready.

  • Page 71: Prompt (Pop-Up) Windows

    Operator Control Panel and Display Prompt (Pop-Up) Windows The prompt window is displayed during the operation of the system to alert the user to certain condi- tions and / or to require user confirmation of a command. Table 23 Prompt windows, meanings Prompt Meaning Inverter and Bypass supplies are not synchronised and...

  • Page 72: 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 36 Default screen Liebert NX 2006-05-22 12:30:36...

  • Page 73: Options

    PTIONS SSEMBLY NSIDE THE ABINET Several items of optional equipment are available for connection to the Liebert NX UPS. These are described in this section of the manual and should be fitted prior to installation. Protection 8.1.1 Battery Ground Fault Detection...

  • Page 74: Redundant Fan For Power Module

    Options—For Assembly Inside the UPS Cabinet 8.1.2 Redundant Fan for Power Module In addition, to ensure sufficient cooling power at various operation modes with 100% rated load, a redundant power module fan set can be supplied, thus ensuring continuity of UPS operation even with the failure of some fans.

  • Page 75: Oc Web Card - Snmp/Http Network Interface Card

    Options—For Assembly Inside the UPS Cabinet 8.1.3 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.

  • Page 76: Relay Card

    Options—For Assembly Inside the UPS Cabinet 8.1.4 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.

  • Page 77: Multiport-4 Card

    Options—For Assembly Inside the UPS Cabinet 8.1.5 Multiport-4 Card The Multiport-4 card provides 4 sets of voltage-free contact closures for remote monitoring of alarm conditions UPS operation On Battery and battery low condition. A typical application is to allows a maximum of four computer systems to simultaneously monitor the status (e.g., utility power failure / low battery) of a single UPS.

  • Page 78: Oc485 Web Card - Modbus, Jbus, Igm Net

    Options—For Assembly Inside the UPS Cabinet OC485 Web Card – Modbus, Jbus, IGM Net The OpenComms 485 Card facilitates SiteScan Web or Building Management Systems monitoring. The RS232 port is used for connection to a personal computer for setting up. The RS-485 port supports IGM Net and Modbus/JBus protocols and maps the operation of the UPS including status, alarms and data (voltages, currents, frequency, power factor, temperatures etc.) Figure 42 OC485 Web card...

  • Page 79: Configuring Baud Rates

    8.2.3 Dust Filter Installing the two dust filters in the Liebert NX requires only a Phillips screwdriver. Each filter is held in place by a bracket on either side of each filter. To install each filter: 1. Open the UPS door and locate the filters (on the back side of the front door; see Figure 43).

  • Page 80: Technical Specifications

    Technical Specifications ECHNICAL PECIFICATIONS Conformity and Standards The UPS has been designed to conform to the following European and international standards: Table 29 Compliance with European, international standards Description Normative reference General and safety requirements for UPS used in EN 50091-1-1 /IEC 62040-1-1 / AS 62040-1-1 operator access areas Electromagnetic compatibility (EMC) requirements for EN 50091-2 / IEC 62040-2 / AS 62040-2 (Class A)

  • Page 81: Table 32

    Technical Specifications Table 32 Mechanical characteristics Unit of Measurement Rated Power, kVA 600x700x1400 Dimensions, WxDxH mm (in) (23-9/16x27-5/8x55) Mass Mass without batteries kg (lb) 180 (397) 200 (441) 200 (441) Pantone 877 (Silver grey) Finish equivalent Becker Silver epoxy polyester powder 041-37-2 Protection Degree, IEC (60529) IP20 (finger-proof with front doors open or closed)

  • Page 82: Battery

    Technical Specifications Table 34 Battery Intermediate DC Circuit Rated Power, Unit of Measurement Battery Bus Nominal: 480V (VRLA Float charge is 540V) Voltage Range: 400V - 600V Number of Lead-Acid Cells Nominal 240 = [40 x 6-cell (12V) blocks] Maximum 264 = [44 x 6-cell (12V) blocks] 2.25 V/cell (selectable from 2.2 –2.3V/cell) Float Voltage...

  • Page 83: Table 35

    Technical Specifications Table 35 Inverter output to critical load Unit of Rated Power, kVA (kW) Measurement 10 (8) 15 (12) 20 (16) 220/230/240V (single-phase, two-wire with neutral Rated AC Voltage referenced to the bypass neutral) Frequency 50 / 60 110% for 60 min 125% for 10 min Overload % Rated...
  • Page 84 Racks & Integrated Cabinets Connectivity Embedded Power Power Switching & Controls Services DC Power Monitoring Precision Cooling Surge Protection Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2007 Emerson Electric Co.

This manual is also suitable for:

Liebert nx series

Table of Contents

Save PDF