Liebert NXC 30kVA User Manual

Liebert NXC 30kVA And 40kVA UPS
User Manual
Version
V1.0
Revision date
December 25, 2012
BOM
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.
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

Liebert NXC 30kVA Specifications

General

Capacity	30 kVA
Active Power	27 kW
Frequency	50/60 Hz
Input Frequency	50/60 Hz
Output Frequency	50/60 Hz
Operating Temperature	0°C to 40°C
Topology	Double Conversion Online
Battery Type	Valve-regulated lead acid (VRLA)
Relative Humidity	0-95% (non-condensing)
Communication Interface	RS232, USB, SNMP, Modbus
Efficiency	Up to 95%

Summary

Chapter 1 Overview

1.5 Battery Management

Covers functions related to battery testing, charging, and protection.

1.6 Battery Protection

Details the safety features and mechanisms for protecting the UPS battery.

Chapter 2 Mechanical Installation

2.1 Precautions

Important considerations and warnings before proceeding with mechanical installation.

2.5 Environmental Requirement

Specifies the necessary environmental conditions for UPS installation.

2.5.1 UPS Location Selection

Criteria and recommendations for choosing the optimal installation location for the UPS.

Chapter 3 Electrical Installation

3.1 Wiring Of Power Cable

Comprehensive guide on connecting power cables for the UPS system.

3.1.1 System Configuration

3.1.2 Maximum Steady State AC And DC Currents

3.1.9 External Protective Device

3.2 Wiring Of Signal Cable

Guide for connecting various signal and communication cables to the UPS.

Chapter 4 Operator Control And Display Panel

4.3 Detailed Description Of Menu Items

4.5 Alarm List

Comprehensive list of all possible UPS alarm messages and their explanations.

Chapter 5 UPS Operation Introduction

5.1.1 Precautions

Important safety warnings and operational notes for UPS users.

5.2 UPS Startup Procedures

Step-by-step guide for starting the UPS in different modes.

5.2.1 Startup Procedures In Normal Mode

Detailed steps for starting the UPS from a powered-down state in normal mode.

5.2.2 Startup Procedures In ECO Mode

5.2.3 Startup Procedures In Battery Mode (Battery Cold Start)

5.3 Procedures For Transfer Between Operation Modes

Explains how to switch the UPS between different operating modes.

5.3.4 Transfer From Normal Mode To Maintenance Mode

Procedure to safely transfer the UPS to maintenance mode for servicing.

5.3.5 Transfer From Maintenance Mode To Normal Mode

Steps to return the UPS from maintenance mode to normal operation.

5.4 Battery Self-test Procedures

Guide on performing battery self-tests to assess battery health.

5.5 UPS Self-test Procedures

Instructions for running UPS self-tests to check system functions and indicators.

5.6 UPS Shutdown Procedures

Procedures for safely shutting down the UPS system.

5.6.1 Procedures For Completely Powering Down UPS

Steps to completely power off the UPS and disconnect all supplies.

5.7 EPO Procedures

Chapter 6 Battery

6.2 Safety

Crucial safety precautions when working with UPS batteries due to high voltage hazards.

6.5 Battery Installation Environment And Number Of Batteries

6.6 Battery Protection

Describes protection mechanisms for the UPS battery, including BCB.

6.7 Battery Installation And Connection

Step-by-step guide for installing and connecting UPS batteries.

6.7.1 Battery Installation

6.7.2 Battery Connection

Detailed instructions for connecting battery terminals and cables correctly.

6.11 Battery Maintenance

Recommendations and procedures for maintaining UPS batteries.

Chapter 7 Parallel System And LBS System

7.2 System Installation Procedures

7.2.4 Parallel Cable

7.3 Operation Procedures For Parallel System

Operating procedures specific to parallel UPS systems.

7.3.1 Startup Procedures In Normal Mode

Steps to start a parallel UPS system from a complete power-down state.

7.3.2 Maintenance Bypass Procedures

Procedures for safely performing maintenance using the bypass function in parallel systems.

7.3.3 Procedures For Isolating One UPS Module From Parallel System

Steps to safely remove a single UPS module from a parallel system for maintenance.

7.4 LBS System

7.4.4 LBS Cable

Chapter 9 Communication

Chapter 10 Service And Maintenance

10.1 Safety

Critical safety guidelines for performing service and maintenance on the UPS.

10.2 Key Components And Service Life Of UPS

Information on key UPS components, their estimated life, and replacement times.

10.2.1 Life Parameters And The Proposed Replacement Time Of Key Components

Table detailing lifespan and recommended replacement intervals for UPS components.

10.3 Maintenance Of UPS And Options

General maintenance advice for the UPS and its optional accessories.

Chapter 11 Specifications

11.2 Environmental Characteristics

11.3 Mechanical Characteristics

11.4 Electrical Characteristics (Input Rectifier)

Specifies electrical parameters for the UPS input rectifier.

11.5 Electrical Characteristics (Intermediate DC Circuit)

Details electrical characteristics related to the UPS's DC intermediate circuit and battery.

11.6 Electrical Characteristics (Inverter Output)

Specifies electrical parameters for the UPS inverter output.

11.7 Electrical Characteristics (Bypass Input)

Details electrical characteristics of the UPS bypass input.

11.8 Efficiency And Loss

Provides data on UPS efficiency across different load levels and modes.