Liebert Nfinity 208 V / 240 V 60Hz Bedienungsanleitung

User Manual

English

208 V / 240 V 60Hz

4 to 16 kVA

Power System

SAVE THESE INSTRUCTIONS.

This manual contains important instructions that

should be closely followed during installation

and maintenance of this UPS unit and during the

installation and replacement of power and

battery modules.

This product is designed for Commercial /

Industrial use only. This product is not intended

for use with life support and other U.S. FDA

designated “critical” devices. Maximum load

must not exceed that shown on the UPS rating

label. See Limited Warranty.

WARNING: Lethal voltages may be present

within this unit even when it is apparently not

operating. Observe all cautions and warnings in

this manual. Failure to do so MAY result in

serious injury or death. Never work alone.

Observe the following precautions when working

with batteries:

§CAUTION: DO NOT dispose of battery

modules in a fire; the battery module may

explode.

§CAUTION: DO NOT open or mutilate

batteries; released electrolyte is harmful to

skin and eyes, and may be toxic.

§CAUTION: A battery can present a risk of

electrical shock and high short circuit

current. The following precautions should

be observed when working on batteries:

§Remove watches, rings or other metal

objects.

§Use tools with insulated handles.

§CAUTION: Lead-acid batteries contain

hazardous toxic materials. Handle,

transport, and recycle in accordance with

local regulations.

This UPS is designed for use on a properly

grounded (earthed), 208/240 VAC, 60Hz supply,

and is to be installed by qualified personnel.

ELECTROMAGNETIC COMPATIBILITY -The

Nfinity™ UPS complies with the limits for a

Class A digital device, pursuant to Part 15 of

FCC rules. These limits provide reasonable

protection against harmful interference in a

commercial environment. This device

generates, uses, and radiates radio frequency

energy and, if not installed and used in

accordance with the instruction manual, may

cause harmful interference to radio

communications. Operating this device in a

residential area is likely to cause harmful

interference, which the user must correct at their

own expense.

Operate the UPS in an indoor environment only

in an ambient temperature range of 0°C to

+40°C (32°F to +104°F). Install it in a clean

environment, free from conductive

contaminates, moisture, flammable liquids,

gasses, or corrosive substances.

Turn the UPS off and isolate the UPS before

cleaning. Use only a soft cloth, never liquid or

aerosol cleaners. Keep the front and rear vents

free of dust accumulation that could restrict

airflow.

Never block or insert any object into the

ventilation holes or other openings.

This UPS contains user replaceable modules.

No attempts should be made to access the

interior of any module. See troubleshooting

section on module replacement.

IMPORTANT SAFETY INSTRUCTIONS

Glossary of Symbols

Introduction

General Description

Modes of Operation

Major Components

Congratulations on your purchase of Liebert’s

Nfinity™ Uninterruptible Power System. As with

every Liebert product, we stand behind our

quality. If you have any questions concerning

this UPS, please feel free to contact your local

sales representative, or call the appropriate

Technical Support number listed in the back of

this manual.

To ensure proper installation and operation of

this unit, please read this manual thoroughly.

SYSTEM DESCRIPTION

The Liebert Nfinity Power System is a modular

UPS intended for use with workstations, servers,

network, telecom or other sensitive electronic

equipment. It provides continuous, high-quality

AC power to your equipment, protecting it from

any power disturbance due to blackouts,

brownouts, surges or noise interference.

The Nfinity modular UPS was designed to

provide maximum system availability to business

critical equipment. Nfinity is also an easily

adaptable UPS system. By simply installing

additional power or battery modules you can

expand your current system capacity or extend

your back-up runtime.

Nfinity has a comprehensive user interface that

can be configured according to the user’s

preference. It also informs the user of details on

the status of the UPS, and keeps a log of

events.

FEATURES:

§Up to 16 kVA of modular back-up

power

§Continuous power conditioning

§A user-friendly interface for custom

configuration

§Continuous system monitoring

§Warning alarms and event logs

STANDARD COMPONENTS:

§Power Modules –for power

conditioning

§Battery Modules –for back-up power

§System Control Modules –for system

monitoring and communications

§LCD display for comprehensive user

indications and programmable controls

§Output transformer for isolation

COMMUNICATIONS

§Dry contacts

§RS-232

§Optional communications via

Intellislot™ communication ports

General Description

The Nfinity UPS is designed to operate as a true

on-line system in the following modes:

Normal Mode

The Power Module rectifiers derive power from a

utility AC source and supplies regulated DC

power to the inverter. The module’s inverter

regenerates precise AC power to supply the

connected equipment. The battery charger

maintains a float-charge on the battery.

Back-Up Mode

When AC utility fails, the connected equipment

is supplied power by the inverter, which obtains

energy from the battery modules. The output

power equipment will not be interrupted during

the failure or restoration of the AC utility source.

Auto Restart Mode

After a power outage and complete battery

discharge, once the AC utility is restored, the

UPS will automatically restart and resume

supplying power to the connected equipment.

This feature is enabled at the factory, but can be

disabled by the user. The user can also

program two auto restart delay settings:

1. Battery capacity level (%)

2. Countdown timer

Recharge Mode

When AC utility is restored, the unit will then

automatically recharge the battery modules until

they are fully charged.

Bypass Mode

The bypass provides an alternate path for power

to the connected equipment that operates in the

following manner:

Automatic

In the event of an internal failure or should

the inverter overload capacity be exceeded,

the UPS performs an automatic transfer of

the connected equipment from the inverter

to the bypass source.

Manual

Should the UPS need to be taken out of

service for limited maintenance or repair,

manual activation of the bypass will cause

an immediate transfer of the equipment from

the inverter to the bypass source.

Modes of Operation

The following is a general description

of each component and its functions.

Please review this section carefully, as

it will give you a better understanding

as to how Nfinity operates.

Unit Frame

Nfinity’s frame houses all of the other

system components. Looking at the

front of Nfinity™, one will see a series

of plastic bezels. By grabbing these

bezels from the side and pulling out,

you will remove the bezel to reveal the

Battery / Power Module bays. The

bottom bezel covers the cooling fans

and the Manual Bypass Switch.

The User Interface Module is located

above the Power / Battery Module bays

for easy access. From here the user

may find out various information about

Nfinity’s condition. By moving the User

Interface and setting it on top of the

frame, you will see the System Control

Module bays.

Major Components

Nfinity’s frame with bezels removed

User Interface Module

The User Interface Module is the primary source of

communication between the UPS and the user.

From the interface, the user can:

§View the status of the UPS

§Custom configure the system

§Review the event log to assist with

troubleshooting

§Enable / disable the output power

§Silence the audible alarm

For a more detailed explanation on how to operate

the User Interface module, see the Controls and

Indicators section of this manual.

System Control Module

The System Control Module is the

communicative backbone of the UPS. It

gathers input from all modules and processes

the data to control the operation of the

system –including monitoring the condition of

each module. An optional second System

Control Module can be installed to provide full

system functionality (operation and

communication), in the unlikely event a

Control Module should fail.

Under normal operation, the Status LED

(green) will blink and the Fault LED (amber)

will be off. For any condition other than this,

check the Troubleshooting section of this

manual.

User Interface Module

System Control Module

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