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Liebert NXC 30kVA User Manual

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Liebert NXC 30kVA And 40kVA UPS

User Manual

Version
Revision date
BOM
Emerson Network Power provides customers with technical support. Users may contact the nearest
Emerson local sales office or service center.
Copyright © 2012 by Emerson Network Power Co., Ltd.
All rights reserved. The contents in this document are subject to change without notice.
Emerson Network Power Co., Ltd.
Address: No.1 Kefa Rd., Science & Industry Park, Nanshan District 518057, Shenzhen China
Homepage: www.emersonnetworkpower.com.cn
E-mail: support@emersonnetwork.com.cn
V1.0
December 25, 2012
31012710

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Summary of Contents for Liebert NXC 30kVA

  • Page 1: User Manual

    Liebert NXC 30kVA And 40kVA UPS User Manual Version V1.0 Revision date December 25, 2012 31012710 Emerson Network Power provides customers with technical support. Users may contact the nearest Emerson local sales office or service center. Copyright © 2012 by Emerson Network Power Co., Ltd.

  • Page 3: Product Safety

    Special Declaration Personnel Safety 1. This product must be installed and commissioned by professional engineers of the manufacturer or its authorized agent. Failure to observe this could result in product malfunction or personnel safety risk. 2. Take the time to read this product manual and the safety precaution thoroughly before installing and commissioning this product.

  • Page 4: Safety Precaution

    Safety Precaution This manual contains information concerning the installation and operation of single UPS module and parallel system of the Emerson NXC 30kVA and 40kVA UPS. Read this manual thoroughly before installing, using and servicing the UPS. The UPS must be commissioned and serviced by trained engineers approved and qualified by the manufacturer or its agent.
  • Page 5 Like other types of large power equipment, the UPS and battery circuit breaker box/battery cabinet have high voltage inside. Because the components with high voltage can be accessed only when the front door (which is locked) is opened, the risk of contacting high voltage has been minimized.
  • Page 6 The Manual Describes The Following Equipment Product Model Liebert NXC 30kVA NXC 0030kTJ1AFN02000 Liebert NXC 40kVA NXC 0040kTJ1AFN02000...

  • Page 7: Table Of Contents

    Contents Chapter 1 Overview ................................1 1.1 Features ................................1 1.2 Design Concept ..............................1 1.2.1 System Design ............................1 1.2.2 Bypass ............................... 2 1.2.3 System Control Principle ........................... 2 1.2.4 UPS Power Supply Switch Configuration ....................3 1.2.5 Battery Circuit Breaker (BCB) ........................4 1.3 Parallel System ..............................
  • Page 8 3.1.8 Protection Ground ........................... 16 3.1.9 External Protective Device ........................17 3.1.10 Power Cable Connection Steps ......................17 3.2 Wiring Of Signal Cable ............................21 3.2.1 Overview ..............................21 3.2.2 Input Dry Contact Port ..........................22 3.2.3 BCB Port ..............................22 3.2.4 Backfeed Protection Dry Contact Port .....................
  • Page 9 5.6.1 Procedures For Completely Powering Down UPS ................... 41 5.6.2 Procedures For Completely Powering Down UPS While Maintaining Power To Load ......41 5.7 EPO Procedures ..............................42 5.8 UPS Reset Procedures After EPO ........................42 5.9 Automatic Restart ............................... 42 5.10 Selecting Language ............................
  • Page 10 Chapter 8 Options ................................64 8.1 Option List ................................64 8.2 Opertion Introduction ............................64 8.2.1 Bypass Load Sharing Inductor Kit ......................64 8.2.2 Internal Battery Kit ........................... 67 8.2.3 Battery Temperature Compensation Kit....................70 8.2.4 Seismic Anchor Kit ..........................71 8.2.5 Air Filter ..............................

  • Page 11: Chapter 1 Overview

    Chapter 1 Overview This chapter briefly introduces the features, design concept, parallel system, operation mode, battery management and battery protection of the Liebert NXC 30kVA and 40kVA UPS (UPS for short). 1.1 Features The UPS is connected between a critical load (e.g. a computer) and mains power to provide high quality power for the loads.

  • Page 12: Bypass

    In this situation, please contact the local customer service center of Emerson Network Power Co., Ltd for technical support. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 13: Ups Power Supply Switch Configuration

    (linked before delivery) to make the bypass input and rectifier input use mains power of the same route. During the normal operation of the UPS, except for the maintenance bypass switch Q3, other switches shall be closed. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 14: Battery Circuit Breaker (Bcb)

    3. Any RCD, if installed, must be of an appropriate setting and located upstream of the common neutral line input terminal. Alternatively, the device must monitor the protective earth current of the system. Refer to Warning: high earth leakage current before Contents. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 15: Operation Modes

    EOD voltage, if the mains is recovered, the UPS will restart automatically after a certain time of delay. This function and the automatic restart type can be set by the service engineer authorized by Emerson. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 16 Mains input Rectifier input switch Output switch Battery charger Battery Figure 1-7 Schematic diagram of ECO mode If ECO mode is required, adjust the corresponding parameters through the operator control and display panel. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 17: Battery Management

    The EOD voltage is settable from 1.6V/cell to 1.9V/cell (VRLA). 7. Battery low pre-warning time The battery low pre-warning time is adjustable between 3min and 60min. The default setting is 5min. 8. Maximum battery discharge time Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 18: Advanced Function

    The BCB alarm occurs when the external BCB opens, if you select the Emerson BCB (optional). The external battery connects to the UPS through the BCB. The BCB is manually closed and tripped by the UPS control circuit. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 19: Chapter 2 Mechanical Installation

    (as shown in Figure 2-1) to prevent the equipment from falling over. Figure 2-1 Inserting and movement 2.3 Unpacking Unpack the UPS and battery packages under the guidance of authorized service engineer. Steps: 1. Remove the side panels and top cover. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 20 Figure 2-4 Removing bottom pallet 3. After moving the cabinet to the installation place, you should raise the four adjustable feet, and then use the castors to move the cabinet to its final installation site. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 21: Initial Inspection

    Note 2: If the UPS is working in ECO mode, the power consumption will be less than that in Normal mode. Proper air conditioning system shall be selected according to the normal operating mode. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 22: Battery Location Selection

    UPS should be sufficient to enable free passage of personnel with the door fully open. Meanwhile, maintain at the back of the cabinet a clearance at least 500mm to permit adequate circulation of air coming out of the UPS. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 23: Cable Access Mode

    Installation hole Lower left corner of the cabinet (amplified view) Figure 2-6 Schematic diagram for UPS positioning and fixing 2.7 Installation Drawings Figure 2-7 describes the key mechanical characteristics of the UPS. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 24 Top view (door open) outlet inlet inlet outlet 1528 Right side view Front view Left side view Cable access area Ф11 foot installation hole Bottom view Figure 2-7 Top/front/side/bottom view of the UPS (unit: mm) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 25: Chapter 3 Electrical Installation

    2. Non-linear load (like switch power) affects the design of output and bypass neutral line. The neutral line current may exceed the rated phase current, at most 1.5 times of the rated phase current Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 26: Csa Of Ups Cable

    The grounding wires shall be tied up reliably to prevent the loosening of the grounding wire tightening screws when the grounding wires are pulled. Warning Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 27: External Protective Device

    (refer to Table 11-6 and Table 11-7). 3.1.10 Power Cable Connection Steps For cable access mode of the UPS, refer to 2.6.3 Cable Access Mode. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 28 2. PE: PE input terminal 3. mA, mB, mC: rectifier input terminals 4. bA, bB, bC, N: bypass input terminals 5. oA, oB, oC, oN: output terminals Figure 3-2 Power cable connection terminals Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 29 Step 2: Lead cables out from U type hole at the bottom of power distribution frame, and connect them to corresponding terminals Figure 3-3 Power cables wiring route (top cable access) Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 30 1) Connect the AC input cables to the bypass input terminals (bA-bB-bC) in the cabinet, and ensure that the three shorting copper bars between the rectifier input terminals (mA-mB-mC) and the bypass terminal terminals are Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 31: Wiring Of Signal Cable

    UPS cabinet. As shown in Figure 3-5, the communication box provides the following ports: User dry contact port RS232 communication port USB communication port Parallel communication port LBS communication port RS485 communication port Intellislot port Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 32: Input Dry Contact Port

    2.3 and 2.4 have been shorted in factory 3.2.3 BCB Port J4 is the BCB port. The port is shown in Figure 3-7 and described in Table 3-6. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 33: Backfeed Protection Dry Contact Port

    The EPO switch has a protective cover. J3 is the remote EPO input port. The port is shown in Figure 3-9 and described in Table 3-8. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 34: Rs232 Communication Port

    Note: To make the communication normal, do not connect the RS232 port and USB port to the computer at the same time. 3.2.8 Parallel And LBS Communication Ports See Figure 3-5 for their positions. 3.2.9 RS485 Communication Port See Figure 3-5 for its position. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 35: Intellislot Port

    Right top cover Step 2: Lead cables to front Step 3: Connect cables to panel through cable trough corresponding terminals Figure 3-10 Signal cables wiring route (top cable access) Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 36 Step 6: Use cable tie to fasten cable onto the cabling mount next to each port, and connect cables to corresponding terminals B amplified view Figure 3-11 Signal cables wiring route (bottom cable access) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 37: Chapter 4 Operator Control And Display Panel

    The two indicators show the current working state of the UPS, see Table 4-2 for details. Table 4-2 Definition of indicators Indicator Status Description Solid green Load powered by the inverter Inverter indicator Flashing green Inverter turning on, starting up, synchronizing or in stand-by state (ECO mode) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 38: Audible Alarm (Buzzer)

    4.2 LCD Screen Type 4.2.1 Start Screen Upon UPS start, the UPS executes self-test, and the start screen appears and remains approximately 25 seconds, as shown in Figure 4-2. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 39: Primary Screen

    During UPS operation, if there is no alarm or key action within two minutes, the default screen will appear, as shown in Figure 4-4. After a short delay, the LCD backlight will turn off. Pressing any menu keys (F1 ~ F5) restores the default screen. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 40: Detailed Description Of Menu Items

    Line voltage L-N voltage (V) Phase voltage L-N current (A) Phase current OutPut Frequency (Hz) Output frequency L-L voltage (V) Line voltage Power factor Power factor Load Sout (kVA) Sout: apparent power Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 41 Manually stop a battery maintenance test, battery capacity test or system test charge Freshening charge Manually initiate a battery freshening charge Stop freshening charge Manually stop a battery freshening charge Eff.Curve Eff.Curve Display the system efficiency at current load Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 42: Prompt Window

    Bypass mode The UPS is in bypass mode Normal mode The UPS is in normal mode Battery mode The UPS is in battery mode UPS shutdown UPS shutdown with no output power Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 43 After UPS shutdown at EOD, the inverter automatically starts upon mains restoration Freshening boost charge The battery is forced to be in boost charge state Rec flash update Rectifier software being updated Inv flash update Inverter software being updated Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 44 2. If the alarm is caused through setting the software value by Emerson authorized engineer, and you wish to change the setting values, please contact the Emerson local customer service center Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 45: Chapter 5 Ups Operation Introduction

    Note: If the UPS system is composed of more than 2 paralleled UPS modules, do not use the internal maintenance bypass switch. Q5: Output switch, which connects UPS output to the load. Q6: Neutral line switch (locked) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 46: Ups Startup Procedures

    Q1 and Q2 are closed. Then the rectifier starts up and the alarm indicator (red) is on. At the same time, the bypass static switch is closed. About 30 seconds later, the alarm indicator (red) is flashing, and then the rectifier startup is finished. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 47: Startup Procedures In Eco Mode

    The inverter starts up, and the inverter indicator (green) is flashing. After the inverter runs normally, the inverter indicator (green) is on. At this time, the UPS is powered by the inverter. Battery cold start button Figure 5-2 Battery cold start button Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 48: Procedures For Transfer Between Operation Modes

    6. Pressing the EPO button stops the operation of rectifier, inverter, static switch and battery, but this action will not affect the maintenance bypass power the load normally. Note In maintenance mode, the load is directly fed by the mains power instead of the pure AC power from the inverter. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 49: Transfer From Maintenance Mode To Normal Mode

    The inverter starts up, and the inverter indicator (green) is flashing. After the inverter runs normally, the UPS will be transferred from the bypass to inverter, and then the inverter indicator (green) is on. At the moment, the load has transferred to UPS normal mode. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 50: Battery Self-Test Procedures

    4. Stop the battery test. If required, the test may be stopped before completion by selecting Stop testing on the Command menu. Refer to Chapter 4 Operator Control And Display Panel for more information. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 51: Ups Self-Test Procedures

    The following procedures are applicable for completely powering down the UPS and still keeping the power supply to the load. Refer to the procedures in 5.3.4 Transfer From Normal Mode To Maintenance Mode. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 52: Epo Procedures

    FAULT CLEAR key first for two seconds and then ON key for two seconds. Note During the automatic restart process, manual startup is disabled. Automatic restart must be set by Emerson’s authorized service engineer through Emerson setting software. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 53: Selecting Language

    6. Similar to step 4, press the F3 and F4 to input new password again, and press the F5 (enter) key to confirm, then press the F2 (ESC) key to return to the 'OutPut' menu. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 54: Chapter 6 Battery

    1) The battery shall be firmly and reliably connected. After the connection is completed, the screw connections between all the terminals and the batteries shall be calibrated. The requirements on torque specified in the specifications or user manual provided Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 55: Ups Battery

    However, during the installation design of the battery, temperature rise shall be taken into account, and enough room shall be reserved to ensure good ventilation. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 56: Precautions For Installation Design

    20°C ~ 25°C If the average operating temperature of the battery rises from 25°C to 35°C, the temperature service life of the battery will be reduced by 50%. If the operating temperature of the Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 57: Number Of Batteries

    To obtain the required backup time, the batteries may be connected in parallel. In this situation, the BCB shall be installed in the after-stage of all the paralleled batteries. Note Only trained personnel shall operate and maintain the battery circuit breaker. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 58: Battery Installation And Connection

    6. When the battery cable is connected, it is prohibited to pull the battery cable or the cable terminal. 7. Do not cross the battery cables during the connection, and do not tie the battery cables together. 8. See Figure 6-1 for battery connection. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 59 W39 CROSS1 W39 CROSS1 W39 CROSS1 W39 CROSS1 W39 CROSS1 W39 CROSS1 W65 BAT-BOX W62+UP W63-DOWN W62+UP W63-DOWN W62+UP Battery tray 3 Battery tray 4 Battery tray 5 W66 BATN-BOX 32-block battery Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 60: Design Of Battery Room

    The workbench (or pedal) must be skid-proof and insulated, and at least 1m wide. Wiring All the wiring distances shall be minimized. BCB The BCB is generally installed in the wall-mounted box near the battery. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 61: Bcb Box (Optional)

    Short circuit protection and EOD protection. When the battery voltage drops to EOD, the BCB will be switched off automatically. UPS EPO. When pressing the EPO button, the BCB will be switched off automatically. UPS- UPS N UPS+ BAT+ BAT- BAT N Figure 6-3 BCB box Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 62 Abnormal: low level, BCB open Auxiliary contact of BCB Normal: 0V, BCB closed; IN (AUX) FB (IN) (contact off means BCB off) Abnormal: open, BCB open GND1 Signal ground GND1 to GND Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 63: Bcb Reference Current And Connection

    3. Measure and record the air temperature inside the battery room. 4. Check to ensure that the battery terminals have no damage or heat generating trace, and the battery enclosure and terminal shields are intact. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 64: Disposal Of Used Battery

    Random discard or any other improper disposal of the used lead acid storage battery may cause severe environment pollution and the relevant person will be investigated of corresponding legal responsibilities. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 65: Chapter 7 Parallel System And Lbs System

    Place the UPS modules side by side and interconnect as shown in Figure 7-1. The output distribution mode (Q1EXT, Q2EXT must be configured) shown in Figure 7-1 is recommended to facilitate maintenance and system testing. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 66: Power Cable

    PARA 1 PARA 1 LBS 1 PARA 1 LBS 2 PARA 2 LBS 2 PARA 2 LBS 2 PARA 2 LBS 2 PARA 2 Figure 7-2 Parallel signal cables connection (Parallel system) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 67: Remote Epo

    These procedures are applicable to start the UPS under total power-down state, which means the UPS or the maintenance bypass switch has not supplied the load before. Make sure UPS has been completely installed and commissioned by the engineer, and external power supply switch has been turned off. Warning Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 68: Maintenance Bypass Procedures

    4. At this moment, the LCD of each UPS displays ‘Maint. sw. closed’. 5. Disconnect the output switch Q5 and neutral line switch Q6 of each UPS in turn, and the maintenance bypass can supply power to the load. Caution Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 69: Procedures For Isolating One Ups Module From Parallel System

    These procedures shall only be carried out by service personnel of Emerson or under their guidance. The following procedures are used to reintegrate a UPS module that has been previously isolated from the parallel system: Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 70: Procedures For Completely Powering Down Ups

    7.3.6 Procedures For Complete UPS Shutdown While Maintaining Power To Load The following procedures are applicable for completely powering down the UPS and still keeping the power supply to the load. Refer to the procedures in 7.3.2 Maintenance Bypass Procedures. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 71: Lbs System

    Place the UPS modules side by side and interconnect the UPS modules according to the following instructions. Bypass Bypass Rectifier Rectifier To load Figure 7-4 LBS system (UPS module) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 72: External Protective Device

    LBS2 port of one UPS module to LBS1 port of another UPS module, as shown in Figure 7-6 and Figure 7-7. UPS 2 UPS 1 PARA 1 LBS 1 PARA 1 LBS 1 LBS 2 PARA 2 LBS 2 PARA 2 LBS cable Figure 7-6 Connection of typical LBS system (UPS module) Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 73 LBS 1 PARA 2 LBS 2 LBS 2 PARA 2 LBS 2 PARA 2 LBS 2 PARA 2 Parallel cable Parallel cable LBS cable Figure 7-7 Connection of typical LBS system (parallel system) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 74: Chapter 8 Options

    Figure 8-1 Operation principle of bypass load sharing inductor Preparation 1. Prepare the installation tools, including a cross head screwdriver, a pair of diagonal cutting pliers, a sleeve and an adjustable spanner. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 75 M6 flat washers and nuts to fasten the terminals. The torque value is 4.8N.m. Then respectively connect the other end of W62 and W59 to the transfer terminal bC in UPS cabinet and the corresponding cabling hole Q2-6 of bypass input switch Q2. See Figure 8-3 for details. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 76 W60 and W57 to the transfer terminal bA in UPS cabinet and the corresponding cabling hole Q2-2 of bypass input switch Q2. Refer to inductor 1 for the detailed connection method of inductor 3. 5. Replace the left side panel and close the front door of the UPS. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 77: Internal Battery Kit

    2. Open the cabinet front door, remove the screws to open the battery compartment door (see Figure 8-4), and reserve the removed screws. Battery compartment door Figure 8-4 Opening battery compartment door Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 78 No.1 ~ No.5 battery trays correspond to No.1 ~ No.5 layers (from top to bottom) of the battery compartment, otherwise the battery voltage may be abnormal. Warning The battery tray shall be installed from the bottom layer upwards, to avoid falling over caused by high gravity center. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 79 5. According to Figure 8-5, connect the positive terminal of battery tray 1 to cabinet positive terminal; connect the neutral line terminal of battery tray 3 to cabinet neutral line terminal, and connect the negative terminal of battery tray 5 to cabinet negative terminal. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 80: Battery Temperature Compensation Kit

    2. Connect one end of the specified cable to either port of the battery temperature sensor, and the other end to each port of UF-RS485 card. See Figure 8-6. Figure 8-6 Connection between UF-RS485 card and battery temperature sensor Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 81: Seismic Anchor Kit

    After fixing the UPS onto the concrete floor, the seismic anchor kits should achieve Class 2 requirement of Table 2 in IEC60068.3.3 and satisfy the UBC 1994 standard (earthquake area 4 from fierceness to very fierceness). Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 82 4. As shown in Figure 8-12, use four M12 expansion bolts to fix seismic anchor 4 on the ground, then push the UPS backward to insert seismic anchor 1 and seismic anchor 2 into the two holes of seismic anchor 4 respectively. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 83: Air Filter

    Table 8-4 Dimensions of air filter UPS (kVA) Dimension (L × W) (mm) 30/40 455 × 376 30/40 200 × 152 8.2.6 IS-WEBL Card Figure 8-15 shows the appearance of the IS-WEBL card. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 84: Is-Relay Card

    2. Insert the IS-WEBL card (along two sides of the Intellislot port) into the port position recommended in Table 3-9, and then fasten the screws. For more information of the IS-WEBL card, refer to the Liebert IntelliSlot Web Card Quick Start Guide in accessory. Refer to 3.2.11 Signal Cable Connection Steps for the cabling and routing of the signal cables.

  • Page 85: Is-485L Card

    Common-On Bypass For more information of the IS-Relay card, refer to the Liebert IntelliSlot Relay Card User Manual in accessory. The installation method of the IS-Relay card is the same as that of the IS-WEBL card described in 8.2.6 IS-WEBL card.

  • Page 86: Bcb Box

    Modbus RTU protocol to manage the UPS, acquire the UPS parameters, operating status and fault types to achieve UPS monitoring. For more information of the IS-485L card, refer to the Liebert IntelliSlot Modbus 485, Modbus IP And BACnet IP Reference Guide in accessory.

  • Page 87: Chapter 9 Communication

    Network Shutdown, so as to prevent data loss. The IS-WEBL card should be installed in the Intellislot port (see Figure 3-5) in the UPS. For the installation and setting information of the IS-WEBL card, refer to the Liebert IntelliSlot Web Card Quick Start Guide in accessory.

  • Page 88: Communication Through Dry Contact Port

    (EIB): Input dry contact port Output dry contact port EPO input port For the functions and detailed information of these ports, refer to 3.2 Wiring Of Signal Cable. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 89: Chapter 10 Service And Maintenance

    3. Remove the air filter to be replaced, and insert a clean one. 4. Re-install the removed fixing bar in the original place and tighten the fixing screws. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 90: Replacement Of Fuse

    UPS is working in order to rapidly position which ambient conditions are unusual; the setting of UPS operation control panel should be known as well. For information of the UPS battery maintenance, refer to 6.11 Battery Maintenance. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 91: Chapter 11 Specifications

    Item Unit 30kVA 40kVA Dimensions (W × D × H) 600 × 850 × 1600 Net weight Gross weight Color Black ZP7021 Protection degree, IEC (60529) IP20 (front door open or closed) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 92: Electrical Characteristics (Input Rectifier)

    11.6 Electrical Characteristics (Inverter Output) Table 11-6 Inverter output (to critical load) Rated power (kVA) Item Unit 30kVA 40kVA Rated AC voltage 380/400/415 (3-phase 4-wire, with neutral reference to the bypass neutral) Frequency 50/60 Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 93: Electrical Characteristics (Bypass Input)

    1. Factory set to 380V. 400V or 415V selectable by service engineer. 2. Factory set to 50Hz. 60Hz selectable by service engineer 11.8 Efficiency And Loss Table 11-8 Efficiency and loss Item Unit Rated power (kVA) Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 94 25% load 91.7% 93.6% ECO mode 98.4% 98.4% Loss Normal mode (no load) 1.116 1.116 Normal mode (full load) 1.620 2.240 Note: 400Vac input and output, battery fully charged, full-rated linear load Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 95: Appendix 1 Disposal Of Old Appliances

    Follow local municipal waste ordinances for proper disposal provisions to reduce the environmental impact of waste electrical and electronic equipment (WEEE). For information regarding the scrapping of this equipment please contact your closest Emerson Representative. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 96: Appendix 2 Glossary

    Protective earth RCCB Residual current circuit breaker Residual current detector Silicon-controlled rectifier SNMP Simple network monitoring protocol Static transfer switch SVPWM Space vector pulse width modulation Uninterruptible power system VRLA Valve-regulated lead-acid Liebert NXC 30kVA And 40kVA UPS User Manual...

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