Specifications

ManualsBrandsEmerson ManualsPower SupplyNfinity 208

Liebert Nfinity UPS Guide Specification

4kVA –20kVA (208/120 or 240/120) 4/03 Rev 2

SL-23956

LIEBERT Nfinity UPS

GUIDE SPECIFICATIONS

for a 4 to 20kVA (208/120V or 240/120V)

Single-Phase Uninterruptible Power Supply System

1.0 GENERAL

1.1 SUMMARY

This specification describes the Nfinity UPS, a modular uninterruptible power supply system for workstation,

server, network, telecom and other sensitive electronic equipment applications. It defines the electrical and

mechanical characteristics and requirements for a continuous-duty single-phase, solid-state, uninterruptible

power supply system. The uninterruptible power supply system, hereafter referred to as the UPS, will provide

high-quality AC power.

1.2 STANDARDS

The UPS is designed in accordance with the applicable sections of the current revision of the following

documents. Where a conflict arises between these documents and statements made herein, the statements in this

specification shall govern.

UL Standard 1778

IEEE C62.41, Category A & B

CSA 22.2, No. 107.1

FCC Part 15, Sub Part B, Class A

National Electrical Code (NFPA 70)

IEC 62040-3 (formerly NEMA PE-l)

1.3 SYSTEM DESCRIPTION

1.3.1 General

The Nfinity UPS system consists of the appropriate number of modules for capacity and/or

redundancy. All modules are to be operating simultaneously and sharing the load. In a non-redundant

system, all the modules making up the UPS are required to supply the full rated load. If a power or

control module malfunctions, the load will transfer automatically to the bypass line. If a battery

module malfunctions, it will automatically isolate itself from the system. For redundant operation, the

UPS will have one or more modules than what is required to supply the full rated load. The

malfunction of one of the modules will cause that module to be isolated from the system and the

remaining module(s) will continue to carry the load. Replacement of a module is capable without

disturbance to the connected load (Hot-swappable/User Replaceable).

1.3.2 Modes of Operation

The UPS is designed to operate as a true on-line system:

A. Normal - The critical AC load is continuously supplied by the UPS inverter. The input converter

derives power from a utility AC source and supplies DC power to the inverter. The battery

charger maintains a float-charge on the battery.

B. Back-up - Upon failure of utility AC power the critical AC load is supplied by the inverter. In this

mode the inverter is powered from the battery. There is no interruption in power to the critical

load upon failure or restoration of the utility AC source.

C. Recharge - Upon restoration of utility AC power, the input converter will automatically restart

and resume supplying power to the inverter. The battery charger will resume recharge of the

battery.

Summary of content (10 pages)

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LIEBERT Nfinity UPS GUIDE SPECIFICATIONS for a 4 to 20kVA (208/120V or 240/120V) Single-Phase Uninterruptible Power Supply System 1.0 GENERAL 1.1 SUMMARY This specification describes the Nfinity UPS, a modular uninterruptible power supply system for workstation, server, network, telecom and other sensitive electronic equipment applications. It defines the electrical and mechanical characteristics and requirements for a continuous-duty single-phase, solid-state, uninterruptible power supply system.
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D. Automatic Restart - After a utility AC power outage and complete battery discharge, the UPS will automatically restart and resume supplying power to the critical load. In addition, the battery charger will automatically recharge the battery. This feature is enabled (factory default) and will be capable of being disabled by the user. The user will also be able to program two auto restart delay settings 1. 2. Battery capacity % level Countdown timer E.
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B. Voltage Regulation: +/- 3% steady state. C. Frequency Regulation: 60 Hz, +/- 0.5%. D. Frequency Slew Rate: field selectable from 0.5 to 5.0 Hz maximum per second. E. Bypass Frequency Synchronization Range: field selectable from 0.5 to 5.0 Hz maximum per second. F. Voltage Distortion: 3% total harmonic distortion (THD) maximum into a 100% linear load, 7% THD maximum into a 100% non-linear load with crest factor ratio of 3:1. G. Load Power Factor Range: 0.5 lagging to 1. H.
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1.5 USER DOCUMENTATION The specified UPS system is supplied with one (1) user's manual. Manuals include installation drawings and instructions, a functional description of the equipment with block diagrams, safety precautions, illustrations, step by step operating procedures, and routine maintenance guidelines. 1.6 WARRANTY The UPS manufacturer warrants the UPS against defects in materials and workmanship for two (2) years.
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C. Input Protection The UPS has built-in protection against undervoltage, overcurrent, and overvoltage conditions including low-energy surges introduced on the primary AC source and the bypass source. The UPS can sustain input surges without damage per criteria listed in IEEE C62.41, Category A & B. The UPS cabinet contains an input breaker sized to supply full 20kVA rated load and to recharge the battery at the same time. D.
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The UPS fault indicator is used with additional indicators and audible alarms to notify the user that a UPS fault condition has occurred. The color of the fault indicator LED is amber. Replace Battery Module Replace Power Module Replace Control Module On Bypass Low Battery OverTemp Warning UPS Shutdown If there is a fault condition, the UPS will attempt to maintain conditioned power to the load, or at minimum transfer to bypass.
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2.2.5 Remote Emergency Power Off (REPO) The remote emergency power off function (REPO) allows the user to disable all UPS outputs in an emergency situation. The REPO, in order to be flexible, will be able to interface with either normally open (N.O.) or normally closed (N.C.) systems. The REPO is activated when a pair of „SELV‟ contacts, external to the UPS, are activated. The REPO connection is through a simple terminal block type connector.
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bypass. The manual bypass does not wrap around the EMI filtering, overcurrent protection or isolation transformer. The UPS will initiate an audible alarm upon transfer to manual bypass. The audible alarm is capable of being silenced by the user. The alarm will continue to sound (unless silenced) while in bypass mode. This shall provide a reminder to the user that the load continues to be powered from utility supply alone. 2.2.
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2.3.4 Network Communications The user has the option of installing an optional Intellislot card to provide HTTP supported SNMP communication over a local area network. This card supports 10/100Mbit Ethernet over unsheilded twisted pair connection. 2.4 ACCESSORIES (OPTIONAL COMPONENTS) 2.4.1 Modular 12 Bay Extended Battery Cabinets The Modular Battery Cabinet is available in the 12 bay frame only. It can be pre-configured with 1 to 12 Nfinity Battery Modules installed.
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3.1 FIELD QUALITY CONTROL The following inspections and test procedures will be performed by factory trained field service personnel during the UPS start-up. 3.2 3.1.1 Visual Inspection A. Inspect equipment for signs of shipping or installation damage. B. Verify installation per drawings. C. Inspect cabinets for foreign objects. D. Verify neutral and ground conductors are properly sized and configured. 3.1.2 Mechanical Inspection A. Check all power modules are correctly fitted. B.