Emerson NXr User Manual
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Emerson NXr User Manual

30kva ~ 200kva
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Liebert NXr
Liebert NX
30 to 200 kVA UPS cubicles
parallelable to 800kVA

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Summary of Contents for Emerson NXr

  • Page 1 Liebert NX Liebert NXr 30 to 200 kVA UPS cubicles parallelable to 800kVA...

  • Page 2: User Manual

    Revision date 2011 0401 (ENPAu 2011 1108) 31012244 Emerson Network Power provides customers with technical support. Users may contact the nearest Emerson local sales office or service center. Copyright © 2010 by Emerson Network Power Co., Ltd. All rights reserved. The contents in this document are subject to change without notice.

  • Page 3: Safety Precaution

    Failure to observe this could result in personnel safety risk, equipment malfunction and invalidation of warranty. The NXr UPS is only used for commercial or industrial purpose and cannot be used as life support equipment. This is a C2 type UPS product. In a domestic environment, this product may cause radio frequency interference, in which case, the user may be required to take additional measures.
  • Page 4 Battery voltage higher than 400Vdc All the battery physical maintenance and servicing procedures need special tools or keys 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 400vdc and is potentially leathal.

  • Page 6: Table Of Contents

    Contents Chapter 1 Installation Of single UPS cubicle ........................1   1.1 Brief Introduction ..............................1     1.2 Initial Check ................................1 1.3 Location Selection ..............................2   1.3.1 UPS Room ..............................2     1.3.2 External Battery Room..........................2 1.3.3 Storage ..............................
  • Page 7   2.5 Battery Recycling ..............................20 2.6 Connection Of External Battery Circuit-Breaker (BCB ..................20   Chapter 3 Installation Of Multiple UPS cubicles ........................ 22   3.1 Overview ................................22   3.2 1 + N Parallel System ............................22    ...
  • Page 8   5.2.1 Start Screen ............................. 34 5.2.2 Primary Screen ............................34   5.2.3 Default Screen ............................35   5.3 Selecting Language ............................35   5.4 Changing The Current Date And Time ........................ 35   5.5 Control Password ..............................35   5.6 Detailed Description Of Menu Items ........................
  • Page 9   8.8 Efficiency, Heat Losses And Air Exchange ......................54   Appendix 1 Option List ..............................55 Appendix 2 List Of Abbreviations ............................56  ...

  • Page 10: Chapter 1 Installation Of Single Ups Cubicle

    Chapter 1 Installation Of UPS Module Chapter 1 Installation Of single UPS cubicle This chapter introduces the installation of Emerson NXr 30kVA ~ 200kVA UPS (hereinafter referred to as UPS) module, including the initial check, location selection, positioning, external protective device and cable connection.

  • Page 11: Location Selection

    During storage, periodically charge the battery according to the battery manufacturer instructions. In the charge process, temporarily connect the UPS to the mains and activate the battery for the time required for recharging the battery. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 12: Positioning

    UPS base. If the UPS is mounted on raised floor, a suitable pedestal should be designed, which should be able to bear the UPS weight. When designing the pedestal, refer to the bottom view in Figure 1-1 and Figure 1-2. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 13 Chapter 1 Installation Of UPS Module Front view Side view Anchor hole Top view Bottom view A amplified view ～ Figure 1-1 30kVA 160kVA UPS installation dimensions (unit: mm) NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 14: Cable Entry

    External circuit breakers or other protective devices must be fitted at the input AC supply of the UPS. This section provides a general guide for qualified installation engineers. The installation engineers should have the knowledge of the local wiring regulations on the equipment to be installed. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 15: Rectifier And Bypass Input

    380V 400V 415V 380V 400V 415V Bolt Bolt Torque (N.m) (N.m) 150, 160 90 、 100 30-B Note: 1. Input mains current for common rectifier and bypass AC input. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 16: Distance From Floor To Connection Point On The Equipment

    Once the equipment has been finally positioned and secured, refer to Figure 1-3 to connect the power cables as described in the following procedures: NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 17 2. Open the UPS door and remove the protective cover at the lower part in the front to gain access to the power terminals, as shown in Figure 1-4 to Figure 1-6. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 18 Chapter 1 Installation Of UPS Module Figure 1-4 30kVA (NXr 30K-B) UPS power terminals NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 19 2. Bypass input: bA, bB, bC, mN 3. UPS output: oA, oB, oC, oN 4. Battery input: + , - , N 5. Earth: PE Figure 1-6 200kVA UPS power terminals NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 20 (+) to (+) and (–) to (–), but disconnect one or more battery cell links in each tier. Do not reconnect these links and do not close the BCB before authorized by the commissioning engineer. 6. For frequency converter applications ensure the bypass links are removed. 7. Replace the protective cover. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 21: Control Cables And Communication

    +12V power J8.1 BAT_IN Internal battery temperature detection J8.2 +12V +12V power J8.3 BAT_OUT External battery temperature detection J8.4 Power ground Note*: Activating this feature turns off the battery charger NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 22: Battery Circuit-Breaker (Bcb) Port

    IN_S J9.2 shorted to J9.4 when Internal maintenance switch is closed J9.3 EXT_OUT External output isolator (EOI) Aux Contact closed to J9.4 when EOI is closed. J9.4 Power ground NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 23: Backfeed Protection Output Dry Contact Port

    Pins 1 and 2 of J10 are supplied factory-shorted. If the UPS EPO function is not used, pins 1 and 2 of J10 must remain shorted and pins 3 and 4 of J10 must remain open . NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 24: Relay And Network Interface Card Ports, Service Ports

    For details, refer to the user manuals of the each specific network interface card. Service ports J2 and J3: Parallel connection ports - used for control of two or more NXr UPS cabinets operating in parallel. J4: Load Bus Synch (LBS) interface - used to synchronize the outputs of two NXr UPS systems operating in dual bus mode.

  • Page 25: Chapter 2 Battery

    Batteries of different brand, model and age should nottbe used together. Except for the NXr 30K-B model that contains internal batteries, all UPS batteries are located external to the UPS cabinet and is normally housed in a battery cabinet or located on stands/racks.

  • Page 26: Safety

    12) Before connecting or disconnecting the battery connection cables, please cut off the charging power. 13) Check if the battery has been unexpectedly earthed. If yes, remove the earth power. Contact with any part of the earthed battery may cause electric shock. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 27: Battery Power Cable

    8. Refer to Figure 2-1 and Figure 2-2 for the battery cable connection. 9. For NXr 30K-B UPS, it is required to install the factory supplied separators between the two rows of batteries on each layer of the battery compartment, as shown in Figure 2-2.

  • Page 28: Battery Maintenance

    Figure 2-2 Internal battery cable connection (NXr 30K-B) 2.4 Battery Maintenance The battery supplied by Emerson complies with the safety requirements of IEC 62040-1:2008. For the battery maintenance and maintenance precautions, refer to the relevant manual provided by the battery manufacturer and observe applicable local regulation e.g.

  • Page 29: Battery Recycling

    Emerson, please consult the local customer service center or sales office of Emerson. If the customer refuses to accept this special note or does not use the disused battery recycling system of Emerson. Emerson will not undertake any environment responsibility caused by the improper disposal of the disused battery products.
  • Page 30 Auxiliary Bypass module contactor BCB control board UHW241C2 X101 X102 X108 +12V +12V BAT -T BAT-T GND2 GND1 Figure 2-6 Connections between UPS, BCB and BCB control board (option) NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 31: Chapter 3 Installation Of Multiple Ups Cubicles

    The basic installation steps of parallel system are the same as those of the single UPS cubicle. The following sections describe the differences between the parallel system installation and single UPS installation. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 32: Cabinet Installation

    UPS output switches and maintenance bypass must be installed, as shown in Figure 3-2, to facilitate maintenance and system testing. Figure 3-2 Typical “1+N” system schematic diagram (with common input, separate battery and output/bypass distribution cabinet) NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 33: External Protective Device

    . Note The length and specification of power cables including the bypass input cables and UPS output cables should be the same. This facilitates load sharing in bypass mode. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 34: Auxiliary Control Wiring

    Be sure to verify the reliable cable connection before starting up the system. UPS 1 UPS 3 UPS 4 UPS 2 Figure 3-5 Connection of parallel control cables of 1+N parallel system NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 35: Dual Bus System

    3.3.4 Control Cable For NXr-to-NXr dual bus system, connect the optional LBS cables between the LBS ports (J4) of the two parallel systems, as shown in Figure 3-8. The LBS port (J4) is provided on the front panel of the bypass module, as shown in Figure 3-6.
  • Page 36 Chapter 3 Installation Of Parallel System UPS 1 UPS 2 UPS 3 UPS 4 Bypass module Bypass module Bypass module Bypass module LBS cable LBS cable Figure 3-8 Connection of typical dual bus system NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 37: Chapter 4 System Description

    (no-break) load transfer between the inverter output and static bypass line. The synchronization between the inverter output and static bypass is achieved through the inverter control electronics, which make the NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 38: N Parallel System

    The UPS is an on-line, double-conversion, reverse-transfer UPS that permits operation in these modes:  Normal mode  Battery mode (“stored energy mode”)  Automatic restart mode  Bypass mode  Maintenance mode (manual bypass)  Parallel redundancy mode NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 39: Normal Mode

    The boost charge voltage can be set as required by the type of battery. For valve-regulated lead-acid (VRLA batteries, the maximum boost charge voltage should not exceed 2.4V/cell. 3. Float charge. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 40: Advanced Function

    The battery disconnect device alarm occurs when the battery disconnect device disconnects. The external battery connects to the UPS through the external BCB. The BCB is manually closed and tripped by the UPS control circuit. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 41: Chapter 5 Operator Control And Display Panel

    State Description Solid green Rectifier in normal operation Flashing green Mains input normal, but rectifier not operating Rectifier indicator Solid red Rectifier fault Rectifier not operating, mains input abnormal NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 42: Audible Alarm (Buzzer)

    The operator control and display panel provides an LCD and five menu keys (F1 ~ F5). The menu keys are described in Table 5-5. Table 5-5 Menu key description Function 1 Escape HOME Left Right Enter Function 2 Down NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 43: 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。 NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 44: Default Screen

    This password provides access to UPS and battery test functions. 5.6 Detailed Description Of Menu Items The description that follows refers to the LCD primary screen shown in Figure 5-3. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 45 Displays the alarm history. For the list of the alarms that may be displayed on Records (alarm history) the LCD on the UPS operator control and display panel, refer to Table 5-9 Language (language option) Provides 12 optional LCD languages NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 46: Prompt Window

    This prompt appears to require your confirmation. Cancelling the test will ends cancel the test and transfers the UPS to Normal mode System self test finished, everything is No action required NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 47: Alarm List

    UPS. If the bypass voltage and frequency are abnormal, check the external bypass supply. 4. If the mains is likely to trigger this alarm frequently, the bypass limits can be changed to a wider NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 48 The neutral line of the AC input mains is not detected The battery ground fault option has detected a battery ground fault. Contact the local customer service Battery ground fault center of Emerson to inspect the battery installation NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 49 Rectifier software being updated Inv Flash Update Inverter software being updated Monitor Flash Update Monitoring software being updated Bypass Flash Update Bypass software being updated LBS abnormal LBS abnormal NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 50: Chapter 6 Operating Instructions

    The UPS provides a maintenance switch only (silkscreen: MAINTAIN CB), as shown in Figure 6-1 to Figure 6-3. The user needs to provide the other switches. Maintenance switch Figure 6-1 Location of maintenance switch of 30kVA (NXr 30K-B) UPS NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 51: Ups Startup Procedures

    Chapter 6 Operating Instructions Maintenance switch Figure 6-2 Location of maintenance switch of 30kVA (NXr 30K) ~ 160kVA UPS Maintenance switch Figure 6-3 Location of maintenance switch of 200kVA UPS 6.2 UPS Startup Procedures It is assumed that the installation is complete, the system has been commissioned by authorized personnel, and the external power isolators are closed.

  • Page 52: Procedures For Startup Into Normal Mode

    At this point, the LCD starts up, and the battery indicator starts flashing in green color. After the rectifier has operated normally for 30s, the battery indicator stops flashing and becomes solid green. 电池启动按钮 Battery start button Figure 6-4 Location of battery start button Note NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 53: Procedures For Transfer Between Operation Modes

    1. If you need to maintain a faulty module, wait for 10min to let the internal DC bus capacitor fully discharge before removing the faulty module for maintenance. 2. When the UPS in operating in maintenance mode, the neutral line is still energized. Therefore, only qualified personnel shall NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 54: Procedures For Completely Powering Down The Ups

    4. Open the output switch of the UPS. 6.6 Isolation Procedures (Of One UPS In A Parallel System) Caution The following procedures will switch off all power to the load. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 55: Insertion Procedures (Of One Ups In A Parallel System)

    In the case of a mains failure, the UPS draws power from the battery system to supply the load until the batteries are depleted. When the UPS reaches its end of EOD threshold, it shut will down. The UPS will automatically restart and enable output power: NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 56: Ups Reset Procedures

    UPS. 2. If you need to maintain a faulty module, wait for 10min to let the internal DC bus capacitor fully discharge before removing the faulty module for maintenance. NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 57: Chapter 7 Service

    If the UPS has been transferred to bypass, press and hold the INVERTER ON button for two seconds to start up all power modules. 7.1.3 Service Procedures Of Bypass Module Provided that the UPS is in normal mode, and that the bypass is normal: NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 58: Replacement Procedures Of Air Filter

    5. Tighten the fixing screws of the fixing bar on the other side. Fixing screw Fixing bar Fixing bar Air filter Figure 7-1 Replacing air filter of 30kVA ~ 160kVA UPS NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 59 Chapter 7 Service Fixing screw Fixing bar Fixing bar Air filter Figure 7-2 Replacing air filter of 200kVA UPS NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 60: Chapter 8 Product Specification

    600 × 843 × 1400 600 × 843 × 1600 Weight (excluding battery) Color Charcoal Grey ZP7021 / RAL 7021 Protection degree, IEC(60529) IP20 (front door open or closed) NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 61: Electrical Characteristics (Input Rectifier)

    2.4 (selectable from 2.30V/cell to 2.40V/cell) Constant current and constant voltage charge mode Programmable automatic trigger or inhibit of boost mode Battery 13.5 22.5 charging power and max charging 14.7 current (adjustable) NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 62: Electrical Characteristics (Inverter Output)

    Current rating of neutral 1.7 × In cable Frequency 50/60 Synchronous transfer: ≤1 Transfer time (between Asynchronous transfer (default): 15 (50Hz), 13.3 (60Hz); or 40, 60, 80, 100 bypass and inverter) selectable NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 63 Heat losses & air exchange Normal mode No load Maximum forced air cooling (front L/sec intake, rear exhaust) Note: 400Vac input and output, battery fully charged, full-rated linear load NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

  • Page 64: Option List

    Applicable to 30kVA (NXr 30K) ~ 100kVA UPS Bypass load sharing inductor UF-NRBYPCK-160 02354042 Applicable to 120kVA ~ 160kVA UPS Bypass load sharing inductor UF-NRBYPCK-200 02354314 Applicable to 200kVA UPS NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...
  • Page 65 MCCB Moulded-case circuit breaker Center tap Battery circuit breaker Load bus synchronizer Pulse width modulation Full digital control Static transfer switch VRLA Valve-regulated lead-acid liquid crystal display Electromagnetic compatibility NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual...

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