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Vertiv Liebert NXC 30kVA User Manual

Vertiv Liebert NXC 30kVA User Manual

Reliable & scalable power system designed for small and mid-size enterprises
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LIEBERT® NXC™ 30kVA & 40kVA UPS
Reliable & Scalable power system designed
for Small and Mid-size Enterprises
Installer/User Guide

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Summary of Contents for Vertiv Liebert NXC 30kVA

  • Page 1 LIEBERT® NXC™ 30kVA & 40kVA UPS Reliable & Scalable power system designed for Small and Mid-size Enterprises Installer/User Guide...
  • Page 2 November 15, 2018 Revision date 31012712 Vertiv provides customers with technical support. Users may contact the nearest Vertiv local sales office or service center. 2012 Copyright, 2017 by Vertiv Tech Co., Ltd. All rights reserved. The contents in this document are subject to change without notice.

  • Page 4: Special Declaration

     Near heat sources or strong electromagnetic interferences  Disclaimer Vertiv disclaims any and all responsibility or liability for the defection or malfunction caused by: Application range or operating environment outside the specifications  Unauthorized modification, improper installation or operation ...

  • Page 5: Safety Precaution

    Used to advise the user to carefully read and observe this unit though it may not cause damage. This manual contains information concerning the installation and operation of single UPS module and parallel system of the Vertiv NXC 30kVA and 40kVA UPS. Read this manual thoroughly before installing, using and servicing the UPS.
  • Page 6 Warning The selection of the prestage distribution protection equipment of the UPS system must comply with the local electric regulations. Warning: high earth leakage current Earth connection is critical before connecting the input supply (including both mains supply and battery). This equipment is installed with EMC filter.
  • Page 7 All the battery physical maintenance and servicing procedures need special tools and should be carried out only by trained personnel. Take special care when working with the batteries associated with this UPS. When the batteries are connected together, the battery terminal voltage exceeds 320Vdc and is potentially lethal. Battery manufacturers supply details of the necessary precautions to be observed in working on or in the vicinity of battery strings.
  • Page 8 The Manual Describes The Following Equipment Product Model Liebert NXC 30kVA NXC 0030kTJ1AFN02000 Liebert NXC 40kVA NXC 0040kTJ1AFN02000...

  • Page 9: Revision Information

    Add a Warning in Safety Precaution; update Note in Section 3.1.4 and update Table 3-3. V1.7 (March 10, 2017) Update Appendix 3. V1.8 (November 15, 2017) Update related information about Vertiv. V1.9 (November 15, 20178 Update Figure 6-4 and Table 6-5...

  • Page 10: 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 ..........................3 1.2.4 UPS Power Supply Switch Configuration ...................... 4 1.2.5 Battery Circuit Breaker (BCB) ......................... 5 1.3 Parallel System ..............................
  • Page 11 3.1.2 Maximum Steady State AC And DC Currents .....................20 3.1.3 Recommended CSA Of UPS Cable ........................21 3.1.4 Selection Of UPS I/O Switch .........................21 3.1.5 Distance Between The UPS Connection Point And The Floor ..............22 3.1.6 Notes ................................22 3.1.7 Power Cable Connecting Terminal .......................22 3.1.8 Protection Ground ............................23 3.1.9 External Protective Device ..........................23 3.1.10 Power Cable Connection Steps ........................24...
  • Page 12 5.2.1 Startup Procedures In Normal Mode ......................48 5.2.2 Startup Procedures In ECO Mode ........................49 5.2.3 Startup Procedures In Battery Mode (Battery Cold Start) ...............49 5.3 Procedures For Transfer Between Operation Modes ...................50 5.3.1 Transfer From Normal Mode To Battery Mode ...................50 5.3.2 Transfer From Normal Mode To Bypass Mode ...................50 5.3.3 Transfer From Bypass Mode To Normal Mode ...................50 5.3.4 Transfer From Normal Mode To Maintenance Mode .................50...
  • Page 13 7.2 System Installation Procedures ........................70 7.2.1 Preliminary Checks ............................70 7.2.2 Cabinet Installation ............................70 7.2.3 Power Cable ..............................71 7.2.4 Parallel Cable ..............................71 7.2.5 Remote EPO ..............................72 7.3 ion Procedures For Parallel System ......................72 7.3.1 Startup Procedures In Normal Mode ......................73 7.3.2 Maintenance Bypass Procedures .........................73 7.3.3 Procedures For Isolating One UPS Module From Parallel System ............75 7.3.4 Procedures For Inserting One Isolated UPS Module In Parallel System ..........75 7.3.5 Procedures For Completely Powering Down UPS ..................76...
  • Page 14 9.3.2 Communication Through Dry Contact Port ..................... 110 Chapter 10 Service And Maintenance ......................111 10.1 Safety ............................... 111 10.2 Key Components And Service Life Of UPS ....................111 10.2.1 Life Parameters And The Proposed Replacement Time Of Key Components ........111 10.2.2 Replacement Of Air Filter .........................

  • Page 16: 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 17: Bypass

    Note When the load is supplied by the bypass or maintenance bypass, the power supply quality will be uncertain. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 18: System Control Principle

    In case of inverter failure, inverter switch failure, output fuse blowout and bypass STS failure, the load will automatically transfer to the bypass, and the output power supply will not be interrupted. In this situation, please contact the local customer service center of Vertiv Tech Co., Ltd for technical support. (Parallel System) In the event of a fault in a UPS module, it will automatically exit from the parallel system.

  • Page 19: Ups Power Supply Switch Configuration

    DC bus Rectifier input Output switch Q5 Mains input switch Q1 Neutral line Neutral line Charger Neutral line output switch Q6 Neutral line input Battery Figure 1-2 UPS power supply switch configuration Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 20: Battery Circuit Breaker (Bcb)

    4. For parallel system consists of two or more UPS modules, the bypass load sharing inductors (optional) should be selected. 1.4 Operation Modes The UPS has the following operation modes: Normal mode  Battery mode  Automatic restart mode  Bypass mode  Maintenance mode  Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 21 If the automatic restart function has not been set, the user can manually start the UPS through pressing the FAULT CLEAR key first and ON key next. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 22 Then, after bypass frequency and voltage have came back and remained within the predefined limits for at least five minutes, the load is automatically and instantaneously transferred back to bypass source. In this mode, the system can normally charge the battery. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 23 The batteries of different manufacturers, different types and different use time are not allowed to be used together. The common battery string mode is suitable for parallel system only, and does not support the LBS mode. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 24: Battery Management

    9. Maximum boost charge protection time To protect against the battery overcharge damage caused by long time boost charge, a protect time setting is essential. The limit of time setting shall be configured by service engineer through the Vertiv setting software.

  • Page 25: Battery Temperature Compensation

    When the battery voltage drops to the EOD voltage, the battery converter shuts down automatically. The EOD voltage is adjustable from 1.6V/cell to 1.85V/cell (VRLA). BCB alarm The BCB alarm occurs when the external BCB opens, if you select the Vertiv BCB (optional). Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 26 Chapter 1 Overview 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 27: Chapter 2 Mechanical Installation

    If an electric forklift is used, insert the tines of the forklift below the bottom pallet (as shown in Figure 2-1) to prevent the equipment from falling over. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 28: Unpacking

    2. Remove the fixing bolts of the bottom pallet (see Figure 2-4), and reserve the fixing bolts. Then use the forklift (following the inserting direction shown in Figure 2-4) to move the cabinet near the installation place. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 29 4. Open the UPS front door, loosen the six fixing screws and remove the two fixing bars in left drawing in Figure 2-6, and then reinstall the fixing screws to their original positions, see right drawing in Figure 2-6. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 30: Initial Inspection

    Do not obstruct the ventilation holes (ventilation grills). The rear of the UPS should be kept a distance at least Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 31: Battery Location Selection

    3. Due to its intensity, the castors may be valid only on the flat surface. 4. The gravity center of the UPS cabinet is high, avoid falling over during the cabinet movement. 5. Vertical hanging of cabinet is not allowed. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 32: Clearance

    4. Align the foot fixing pieces with the installation holes dug according to dimensions shown in Figure 2-8. 5. Rotate the nuts from top to bottom till the nuts firmly press the foot fixing pieces, and then use the fixing bolts M10 to fix the UPS on the floor. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 33 Foot fixing piece Foot Foot Installation hole Installation hole Lower left corner of the cabinet (amplified view) Lower left corner of the cabinet (amplified view) Figure 2-7 Schematic diagram for UPS positioning and fixing Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 34: Installation Drawings

    1528 Right side view Front view Left side view Ф11 foot installation hole Cable access area 32 84 Bottom view Figure 2-8 Top/front/side/bottom view of the UPS (unit: mm) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 35: Chapter 3 Electrical Installation

    Max. steady state AC and DC currents Rated current (A) Bus stud bolt/nut specification UPS power Max. Output/bypass Battery discharge Input/battery/ Recommended (kVA) input current at full load current (+, -, N) at output/ torque (N.m) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 36: Recommended Csa Of Ups Cable

    00V main 63A (3P), DC 160A (4P) 63A (3P) (3-in 3-out) blcok bypass 100A (3P) 30kVA Icc=10kA\Uc=230/4 Terminal Terminal block DC 160A (4P) 160A (1P) (3-in 1-out) 00V main 63A (3P), blcok Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 37: Distance Between The Ups Connection Point And The Floor

    5. Do not form coils, so as to minimize the formation of EMI. 3.1.7 Power Cable Connecting Terminal The rectifier input, bypass input, output and battery power cables are connected to the corresponding terminals shown in Figure 3-2. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 38: Protection Ground

     Be insensitive to transient state current pulse  Have an average sensitivity which is 0.3A ~ 3A adjustable  The RCCB symbols are shown in Figure 3-1. Figure 3-1 RCCB symbols Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 39: External Battery

    2. When routing the cables inside the cabinets, it is required to bind and fix the cables as instructed in Figure 3-3 and Figure 3-4 in the cabinets, so as to prevent cable damage due to mechanical stress. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 40 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 41 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 42 Power distribution mode According to the user's requirements, the I/O cable connections can be configured into four types: 3-in 3-out, common source configuration (factory default)  3-in 3-out, split bypass configuration  Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 43 (mA-mB-mC) in the cabinet, and connect the bypass input cables to the bypass input terminals (bA-bB-bC) in the cabinet. Connect the rectifier input neutral line and bypass neutral line to the neutral terminal N in the cabinet. Ensure correct phase rotation. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 44 Do not reconnect these links and do not close the BCB before authorized to do so by the service engineer. Note: When connecting the cables between battery terminals and BCB, the connection should begin from the BCB terminal. Now, the connection is finished. Then replace the protective covers. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 45: Wiring Of Signal Cable

    3.2.2 Input Dry Contact Port The input dry contact ports J1 and J2 are shown in Figure 3-8 and described in Table 3-5. The input dry contact voltage is 12Vdc, and the current is 20mA. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 46: Bcb Port

    J4 is the BCB port. The port is shown in Figure 3-9 and described in Table 3-6. UPS inside External ports Figure 3-9 BCB port J4 Table 3-6 Description of BCB port J4 Silkscreen Port Pin No. Pin name Meanings Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 47: Backfeed Protection Dry Contact Port

    UPS or by a remote contact provided by the user. The EPO switch has a protective cover. J3 is the remote EPO input port. The port is shown in Figure 3-11 and described in Table 3-8. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 48: Rs232 Communication Port

    After the connection, you need to install the USB drive program in the installation disk. Note: To make the communication normal, do not connect the RS232 port and USB port to the computer at the same time. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 49: Parallel And Lbs Communication Ports

    Respectively route the power cables and signal cables. The shielding coat of signal cable must be reliably earthed. Two connection modes are available: top cable access, bottom cable access. See Figure 3-13 and Figure 3-14. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 50 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 3-14 Signal cables wiring route (bottom cable access) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 51: Chapter 4 Operator Control And Display Panel

    Inverter turning on, starting up, synchronizing or in stand-by state (ECO mode) indicator Inverter off Rectifier not ready or critical fault (fro example, inverter relay short circuit, Alarm indicator Solid red bypass STS short circuit, bypass backfeed and inverter fault, etc.) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 52: Audible Alarm (Buzzer)

    UPS, get current UPS status and alarm information, and perform functional setting and control operation. The LCD also stores up to 2048 historical records that can retrieve for reference and diagnosis. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 53 Chapter 4 Operator Control And Display Panel Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 54: Lcd Screen Type

    The functions of the menu keys F1 ~ F5 for the current screen are shown by self-explanatory icons in the keypad window as appropriate. From any menu on the primary screen, pressing the F1 key returns to the 'OutPut' menu. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 55: Default Screen

    The menu window provides the menus of the data window. The data window displays the items of the menu selected in the menu window. UPS parameters can be browsed and functions can be set through the menu window and data window. Details are provided in Table 4-7. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 56 Battery is float charging charging Battery is not Battery is not connected connected Event (active alarm) Display the active alarms Records (alarm history) Display the alarm history Language (language option) Provide 17 optional LCD languages Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 57 Run Time Byp. Run time Display UPS accumulated run time on bypass UPS version Provide UPS inverter, rectifier and monitoring software versions Version UPS model Provide UPS model information, for example, 208V-60Hz Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 58: Prompt Window

    ON key on the operator control and display panel pressed to turn on the inverter Manual turn off OFF key on the operator control and display panel pressed to turn off the inverter Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 59 At least one phase of the output voltages is abnormal This alarm appears when the load rises above 105% of the nominal rating. The alarm Unit overload automatically resets once the overload condition is removed Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 60 The battery is under automatic periodic battery maintenance test (20% capacity Battery period testing discharge) Batt. capacity testing The user initiated a battery capacity test (100% capacity discharge) Battery maintenance The user initiated a maintenance test (20% capacity discharge) Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 61 1. For UPS installed with the optional battery monitor, refer to the user manual of the battery monitor for the alarm messages related to battery cell and charge current. 2. If the alarm is caused through setting the software value by Vertiv authorized engineer, and you wish to change the setting values, please contact the Vertiv local customer service center.

  • Page 62: 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 63: Ups Startup Procedures

    2. Close the bypass input switch Q2, rectifier input switch Q1, output switch Q5 and all external output isolating switches (if any) of the UPS in turn. At the moment, the system is powered on, and the startup screen pops up. Refer to 4.2.1 Start Screen. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 64: 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. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 65: Procedures For Transfer Between Operation Modes

    1. Press the OFF key at least two seconds. At this point, the inverter indicator (green) turns off, accompanied by an audible alarm. The load transfers to the static bypass, and the inverter shuts down. Note Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 66 1. If the maintenance is required, wait 10 minutes for the internal DC bus capacitance discharging. 2. The parts of UPS circuits also have hazardous voltage, though the rectifier input switch, bypass input switch and Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 67: Transfer From Maintenance Mode To Normal Mode

    The battery test procedures are password controlled and menu driven. The test is immediately terminated in the event of a battery or a mains failure and the total load power is supported from the remaining source without interruptions. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 68: Ups Self-Test Procedures

    5.6.1 Procedures For Completely Powering Down UPS Complete UPS shutdown and load power-off should follow this procedure. All power switches, isolating switches and breakers are disconnected, and then UPS no longer supplies power to load. Caution Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 69: Procedures For Completely Powering Down Ups While Maintaining Power To Load

    2. Press and hold the ON key over two seconds, 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. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 70: Automatic Restart

    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 Vertiv's authorized service engineer through Vertiv setting software.

  • Page 71: Changing Current Date And Time

    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 72: Chapter 6 Battery

    Too large or too small torque may cause poor connection of the Tighten the terminal bolt of the terminal. Under certain conditions, the terminal may have arcing or battery with specified torque heat accumulation, which finally will cause fire Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 73 (e.g., wrench) are covered with insulating material. Otherwise, battery burning, human death/injury or explosion may be caused. h) Do not disassemble, modify or demolish the battery. Otherwise, battery short circuit, liquid leakage or even human injury may be caused. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 74: Ups Battery

    To avoid the battery over-charge or under-charge, please set the battery management parameters according to the equalizing/float charge voltage and temperature compensation factor specified in the manuals provided by the battery manufacturer. Please charge the battery immediately after discharge. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 75: Precautions For Installation Design

    Uneven temperature among the battery strings will cause uneven voltage distribution and thus result in problem. Therefore, it is very important to maintain balanced temperature in the battery string, and the temperature difference between batteries of different layers shall be kept Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 76: Number Of Batteries

    2.15Vdc/Cell ~ 2.3Vdc/Cell, 2.27V/cell recommended 6.6 Battery Protection The UPS inside has a fuse switch to protect the internal battery. The Vertiv BCB (optional) is recommended to protect the external battery. The external battery is connected to the UPS through the BCB. The BCB can be manually closed and has the electronic tripping device controlled by the UPS control circuit.

  • Page 77: Battery 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 78 Battery tray 2 W63-DOWN W66 BATN-BOX W62+UP W63-DOWN Battery tray 3 PP75 terminal of W63 connects to PP75 terminal of W62 W62+UP Battery tray 4 W63-DOWN W65 BAT-BOX W62+UP Battery tray 5 32-block battery Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 79 PP75 terminal of W43 connects to PP75 terminal of W42 W42+UP Battery tray 3 W44 BATN-BOX W43-DOWN W42+UP W43-DOWN Battery tray 4 W45 BAT-BOX W42+UP Battery tray 5 38-block battery Figure 6-1 Connection for internal batteries Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 80: Design Of Battery Room

    The BCB box contains a BCB and a BCB control board. Vertiv provides the BCB box and BCB signal cables (length: 30m) for use when the battery does not install in the battery cabinet. In this situation, The BCB box is fitted as close as possible to the battery and connected to the UPS.
  • Page 81 Cabling hole for confirming the cable size and opening hole Wall-mounted installation hole Grounding bar Insulating plate Base plate Visible cover The BCB box generally uses bottom cabling mode, but you can rotate its bottom plate to use top cabling mode. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 82 The separate safety earth must be connected between the UPS and BCB box. Caution If the corresponding functions are not required, just do not connect corresponding ternimals. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 83: Bcb Reference Current And Connection

    For the battery maintenance and maintenance precautions, refer to IEEE-Std-1188-2005 and the relevant manuals provided by the battery manufacturer. Note 1. Periodically check the screws of the battery connection parts and confirm that they are firmly tightened. If there is Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 84: 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 85: Chapter 7 Parallel System And Lbs System

    Warning To achieve coordinated operation of the modules in the parallel system, it is required to configure each module separately using Vertiv setting software. This must be done by Vertiv service personnel. 7.2.2 Cabinet Installation Place the UPS modules side by side and interconnect them 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.

  • Page 86: Power Cable

    PARA1 port to the PARA2 port of another module. Follow this method to connect other parallel cables. The ring connection ensures the reliability of the control of the parallel system. Be sure to verify the reliable cable connection before starting up the system! Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 87: Remote Epo

    UPS1 Figure 7-3 EPO circuit diagram Note: In Figure 7-3, the upper one is Normally Open type, and the lower one is Normally Closed type. 7.3 ion Procedures For Parallel System Warning Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 88: Startup Procedures In Normal Mode

    7.3.2 Maintenance Bypass Procedures Warning If the UPS system is composed of more than 2 parallel UPS modules, and the load capacity exceeds the single module capacity, do not use the internal maintenance bypass switch. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 89 2. The parts of UPS circuits also have hazardous voltage, though the rectifier input switch, bypass input switch and battery switch are disconnected. Therefore, the UPS maintenance is suitable for qualified personnel only. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 90: Procedures For Isolating One Ups Module From Parallel System

    7.3.3 Procedures For Isolating One UPS Module From Parallel System Important These procedures shall only be carried out by service personnel of Vertiv or under their guidance. Warning Before operation, confirm that the system capacity has redundancy to avoid system shutdown due to overload.

  • Page 91: Procedures For Completely Powering Down Ups

    Place the UPS modules side by side and interconnect the UPS modules according to the following instructions. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 92 Note In a dual-bus system, the two UPS systems must have the same power rating, voltage and frequency, and the load must not exceed the power rating of a UPS module system. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 93: External Protective Device

    PAR A 2 LBS 2 PAR A 2 LBS 2 PAR A 2 Parallel cable Parallel cable Parallel cable Parallel cable LBS cable LBS cable Figure 7-7 Connection of typical LBS system (parallel system) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 94: Chapter 8 Options

    LBS cable Available in 5m, 10m, 15m 0040kTJ1AFN02SL14 0040kTJ1AFN02SL15 C2 electromagnetic shielding assembly 0040kTJ1AFN02Z16 Output transformer 0040kTJ1AFN02Z15 Lightning proof plate 0040kTJ1AFN02Z17 3-in 1-out copper bar kit Marked with number 21 NXC 0040kTSB01 Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 95: Option Introduction

    2. Connect the cables strictly following the instructions. Failure to observe this may cause damage to the UPS and the inductors. 1. Shut down the UPS completely. Note This procedure will cause the load power-off. a) Close the load. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 96 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 97 M6 × 16 sems screws, M6 flat washers and nuts to fasten the terminals. The torque value is 4.8N.m. Then respectively connect the other end of W60 and W57 to the transfer terminal bA in UPS cabinet and the Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 98: Maintenance

    3. Keep good records. Inform the service engineer for on-site maintenance in time. 8.2.2 Internal Battery Kit Vertiv provides two kind of internal battery kits for the user when UPS internal battery or corresponding kits is required. Kit A: 32-block internal battery kit (factory installation), or select the battery cable, battery tray, screws, protective cap and battery fuse (site installation);...
  • Page 99 Remove the side panel and back door of the cabinet, and then install W35, W36, W37 (38-block internal battery kit) or W55, W56, W57 (32-block internal battery kit) on corresponding positions according to Figure 8-4 and Figure 8-5. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 100 4. Place the battery into corresponding position in battery tray one by one according to internal battery connection shown in Figure 6-1, and then use M6*20 sems screws/spring washers/flat washers and Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 101 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 102 Back view Figure 8-8 Connection between battery trays and batteries 6. Use torque value in Figure 8-9 to fix both sides of the battery tray, then pull up the limiting baffle plate. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 103 (+, -, N), so as to verify that the cable connection is correct. Warning At this moment, the battery voltage over 384V has been input to the UPS cabinet. Insulated gloves and other protective measures are required. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 104: Battery Temperature Compensation Kit

    Preparation 1. Prepare the installation tools, including a cross head screwdriver. 2. Check that all installation materials are present and complete, including a battery temperature sensor, a UF-RS485 card. Procedures Warning Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 105 1, and then insert the UF-RS485 card into the Intellislot port 1. The installation method of the UF-RS485 card is the same as that of the IS-WEBL card described in 8.2.6 IS-WEBL card. Refer to Figure 8-14 for installation and connection of the battery temperature sensor. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 106: Seismic Anchor Kit

    Table 2 in IEC60068.3.3 and satisfy the UBC 1994 standard (earthquake area 4 from fierceness to very fierceness). Warning 1. Only Vertiv-authorized engineers shall carry out the installation. 2. Carry out the installation strictly following the instructions. Failure to observe this could cause personnel injury or damage to the UPS and seismic anchor kits.
  • Page 107 UPS backward to insert seismic anchor 1 and seismic anchor 2 into the two holes of seismic anchor 4 respectively. M12 expansion bolt (4 pcs) Seismic anchor 1 Seismic anchor 4 Seismic anchor 2 Figure 8-18 Fixing seismic anchor 4 on the ground and fixing the cabinet Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 108: Air Filter

    UPS (kVA) Dimension (L × W) (mm) 30/40 455 × 376 30/40 200 × 152 8.2.6 IS-WEBL Card Figure 8-21 shows the appearance of the IS-WEBL card. IS-WEBL Figure 8-21 IS-WEBL card Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 109: Is-Relay Card

    Chapter 8 Options The IS-WEBL card is a network management card. It can make the UPS made by Vertiv Tech Co., Ltd real network equipment. It can also be connected to the IRM series sensor to provide environment monitoring function. When the intelligent equipment generates an alarm, the IS-WEBL card can notify the user by recording the log, sending trap information, and sending a mail.
  • Page 110 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. Refer to 3.2.11 Signal Cable Connection Steps for the cabling and routing of the signal cables. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 111: Is-485L Card

    This UPS includes an isolation transformer (see Figure 8-24 for its position) at the UPS output. This transformer is installed in the cabinet and provides electrical isolation between the UPS output and the load. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 112 1. The optional output transformer is only suitable for 3-in 3-out mode. 2. When switching on the maintenance bypass switch, the output transformer is still live. During the transformer maintenance, you must shut down the UPS completely. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 113: Mechanical Specification

    2. Remove the rear panel and side panels of the UPS cabinet, and reserve the removed screws. 3. Install the output transformer. a) According to Figure 8-26, remove the four battery tray beams, three shorting copper bars (number 51) and cable W31. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 114 Removed Removed Removed Removed Figure 8-26 Removing battery tray beams, shorting copper bars and cable W31 b) Install the metal plates and cushion pads onto the base, as shown in Figure 8-27. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 115 10N.m screw, torque value: 10N.m M5 x 12 hexagon sems M5×12 hexagon sems screw, torque value: 2.8N.m screw, torque value: 2.8N.m Cushion pad Cushion pad Figure 8-28 Installing output transformer (2) Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 116 Install the fans onto the front panel of battery cabinet. b) Connect the cables from the two fans respectively to terminals (N-A) of the output transformer primary side and terminals (N-B) of the output transformer primary side, see Figure 8-30. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 117 (W01) to the port of signal acquisition device, and the other end to the RS485 card, see the lower diagram in Figure 8-31. c) Insert the RS485 card into the Intellislot 1. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 118 Connect one end of the copper earth bar (number 80, see Figure 8-32) to copper bar of the UPS output neutral line, and the other end to the UPS enclosure. Torque value is 4.5N.m Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 119: Lightning Proof Plate

    The lightning proof plate (see Figure 8-33 for its position) is installed at the UPS input. The system with lightning proof plate can pass the lightning proof test of 3kA. Lightning proof plate Lightning proof plate Lightning proof plate Figure 8-33 Lightning proof plate Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 120: 3-In 1-Out Copper Bar Kit

    8-34) in this kit are used to connect the bypass input, and output. Figure 8-34 3-in 1-out copper bar Note UPS is the 3-in 3-out mode by default. If you need to change it into 3-in 1-out mode, contact Vertiv authorized personnel for settings. Always observe the following procedures: Power distribution mode 1.

  • Page 121: Start-Up Procedures

    3. Close the rectifier input switch Q1. At the moment, the system is powered on, and the startup screen pops up. Refer to 4.2.1 Start Screen. Then press the EPO button within 10s, see Figure 8-37. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 122 Q1 and Q2 are closed. Also check that the system display the LCD screen shown in Figure 8-39, otherwise verify that the setting is correct or not by Vertiv authorized personnel.
  • Page 123 After the cable connection, find the label shown in Figure 8-40 (30kVA as an example) inside the front door of the UPS and put a tick after 'MODULE OUTPUT' and 'BYPASS INPUT' according to the actual situation for ease of maintenance. Figure 8-40 Label Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 124: Chapter 9 Communication

    Tech Co., Ltd. This card supports SNMP protocol. The IS-WEBL card is a network management card. It can make the UPS made by Vertiv Tech Co., Ltd real network equipment. It can also be connected to the IRM series sensor to provide environment monitoring function.

  • Page 125: Communication Through Is-Relay Card

    These functions are realized through the following interfaces on the external interface board (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 126: Chapter 10 Service And Maintenance

    Frequent inspection or replacement should also be made in new buildings. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 127: Replacement Of Fuse

    3. Maintain appropriate ambient temperature. The most appropriate temperature for battery is 20°C to 25°C. Too low temperature will reduce the battery capacity and too high temperature will reduce the battery life. Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 128 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 129: Chapter 11 Specifications

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

  • Page 130: Electrical Characteristics (Input Rectifier)

    Boost-float current trigger 0.010C (selectable from 0.001 to Boost control 0.025) 24h safety time timeout (selectable from 8h to 30h) Boost mode inhibit also selectable EOD voltage V/cell (VRLA) 1.60 ~ 1.85 Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 131 Constant current and constant voltage charge mode Programmable automatic trigger or inhibit of boost mode *: When the model is 40kVA and the battery cell is 30, the Vertiv authorized personnel shall set the EOD voltage value to 1.75 V/cell.

  • Page 132: Electrical Characteristics (Inverter Output)

    61 (3-in 3-out), 182 (3-in 1-out) 380V Rated 400V 44 (3-in 3-out), 132 (3-in 1-out) 58 (3-in 3-out), 174 (3-in 1-out) current 415V 42 (3-in 3-out), 126 (3-in 1-out) 56 (3-in 3-out), 168 (3-in 1-out) Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 133: Efficiency And Loss

    25% load 91.7% 93.6% ECO mode (100% load) 98.4% 98.4% Loss Normal mode (no load) 0.35 0.35 Normal mode (full load) 1.530 2.150 400Vac input and output, battery fully charged, full-rated linear load. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 134: 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 Vertiv Representative. Liebert NXC 30kVA And 40kVA UPS User Manual...

  • Page 135: 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...

  • Page 136: Appendix 3 Hazardous Substances And Content

    ×: Means the content of the hazardous sustances in at least one of the average quality materilals of the parts is outsides the limits specified in GB/T 26572 About battery: Generally follow the environmental protection use period of the battery, otherwise five years. Applicable scope: NXC 30kVA And 40kVA UPS Liebert NXC 30kVA And 40kVA UPS User Manual...
  • Page 137 © 2019 Vertiv Group Corp. All rights reserved. Vertiv™ and the Vertiv logo are trademarks or registered marks of Vertiv Group Corp. All other names and logos referred to are trade names, trademarks or registered trademarks of their respective owners.

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