Vertiv Liebert PST4-350MT120 Instrucciones de instalación y mantenimiento

Liebert® PST4™ 350–500 VA

Installer/User Guide

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Technical Support Site

If you encounter any installation or operational issues with your product, check the pertinent section of

this manual to see if the issue can be resolved by following outlined procedures. For additional assistance,

visit https://www.VertivCo.com/en-us/support/

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TABLE OF CONTENTS

1 Liebert PST4 Overview 5

1.1 Controls and Indicators 6

1.2 Installation 6

1.3 Setup and Start-up 7

1.4 UPS Operation 7

1.5 Alarms 8

1.5.1 On Battery 8

1.5.2 Low Battery Warning 8

1.5.3 Weak/Bad Battery 8

1.5.4 Overload 8

1.5.5 UPS Fault 8

1.6 Troubleshooting 9

1.7 Maintenance and Battery Replacement 9

1.7.1 Battery Charging 9

1.7.2 Precautions 9

1.7.3 Battery Replacement Precaution 10

1.7.4 Information for the Protection of the Environment 10

1.7.5 Battery Replacement Procedure 10

1.7.6 Specifications 12

Appendices 15

Appendix 1: Technical Support 15

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1 LIEBERT PST4 OVERVIEW

Thank you for purchasing the Liebert PST4 Uninterruptible Power Supply. It is designed, manufactured,

and tested to provide many years of reliable power protection.

Please review this manual and the important safety instructions before installing, operating, or

maintaining your Liebert PST4 UPS.

CAUTION: Connect the UPS only to a properly grounded/earthed outlet that is protected by an

appropriate branch circuit protector (circuit breaker or fuse) that meets national and/or local

electrical codes.

The Liebert PST4 should be located near the wall outlet. Do not use extension cords between the wall

outlet and the UPS. The Liebert PST4 is designed for small office and home use only. It is not

recommended to be used with life-support equipment or applications.

WARNING: Risk of Electric Shock. Observe all cautions and warnings in this manual. Failure to

do so may result in serious injury or death. Refer all UPS and battery service to properly trained

and qualified service personnel. Do not attempt to service this product yourself beyond the

battery replacement procedures. Opening or removing the cover may expose you to lethal

voltages within this unit even when it is apparently not operating and the input wiring is

disconnected from the electrical source. Never work alone.

In case of fire, use a dry chemical fire extinguisher to put out the fire. Using a fluid fire extinguisher may

cause electric shock. In the event of an emergency, press and hold the ON/OFF button for at least one (1)

second to turn off the UPS then unplug the UPS from the wall outlet.

NOTICE: This equipment has been tested and found to comply with the limits for a Class B computing

device in accordance with the specifications in Subpart J of Part 15 of FCC Rules and also meets the Class

B limits for radio noise emissions from digital apparatus set out in the Radio Interference of the Canadian

Department of Communications. These limits are designed to provide reasonable protection against such

interference in a residential installation. This equipment generates and uses radio frequency and if not

installed and used properly, that is, in strict accordance with the manufacturer's instructions, this

equipment may cause interference to radio and television reception. If this equipment does cause

interference to radio or television reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one or more of the following measures:

•Re-orient the receiving antenna.

•Relocate the computer with respect to the receiver.

•Move the computer away from the receiver.

•Shielded communication-interface cables must be used with this product.

WARNING: Changes or modifications to this unit not expressly approved by the party

responsible for compliance could void the user's authority to operate the equipment.

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The Liebert PST4 is shipped with the following items:

•CD with Liebert MultiLink® Shutdown Software and User manual (electronic version)

•USB cable; one 2m (6-1/2 ft.) long

•Wall-mount template and screws

•User Manual with warnings safety instructions and WEEE recycling sheet

(ISO14001compliance)

1.1 Controls and Indicators

ITEM DESCRIPTION

1 Battery-backed and surge-protected output power receptacles.

The Low Battery/Overload/Fault (Red) LED.

•The Low Battery/Overload/Fault (Red) LED illuminates in a steady state when the UPS has an internal fault and

the audible alarm beeps continuously.

•The Low Battery/Overload/Fault (Red) LED blinks when the UPS is overloaded and the audible alarm sounds one

beep every half second.

•The Low Battery/Overload/Fault (Red) LED blinks when the UPS reaches a Low Battery Warning and the audible

alarm sounds two beeps every five seconds.

•The Low Battery/Overload/Fault (Red) LED blinks when the battery is weak or needs replaced and the audible

alarm sounds three beeps every thirty seconds.

3 Input Circuit Breaker. The input circuit breaker trips in the event the output load exceeds the UPS's power rating.

4 On/Off button.

5 Input Power Cord.

The On Utility/On Battery (Green) LED

•The On Utility/On Battery (green) LED illuminates in a steady state when the UPS is on and operating in the AC

normal mode.

•The On Utility/On Battery LED blinks when the UPS is operating in the Battery mode and the audible alarm sounds

one beep every five seconds.

7 Surge-protected-only output-power receptacles.

8 RJ11/45 connectors for phone/fax/modem or network surge protection.

9 RJ45 connector for USB communications port for UPS monitoring and control.

1.2 Installation

Install the Liebert PST4 in a temperature-controlled environment that is free of corrosive and conductive

contaminants. Avoid locations near heat or water sources and exposed to direct sunlight. For proper

ventilation, leave approximately 2 to 4 inches clearance on all sides of the UPS.

The UPS unit ships with the internal battery connected.

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The UPS may be mounted to a wall using the mounting slots on the bottom of the UPS and provided

screws. A template for screw location is provided and the unit should be mounted ensuring they are in a

wall stud for a secure installation.

1.3 Setup and Start-up

Inspect the UPS for any signs of obvious damage. If damage is visible, do not proceed with the setup and

call our warranty support line for a new replacement unit.

The UPS has 3 battery-backed and surge-protected receptacles and 3 surge-protected-only receptacles.

Plug your critical equipment (such as computer, monitors, etc.) into the battery-backed receptacles and

your less-critical equipment (such as printers and other less-often used peripherals) into the surge-only

receptacles.

If you also want to protect your computer network connection or telephone, you can use the

network/telephone surge-protection ports on the side. Use the “IN” port to connect the line from the wall

jack and the “OUT” port to connect to your device port. Use of this feature is not required forproper

operation of the UPS.

If you wish to use the USB communications, plug the provided cable into the port on the UPS and the

other end into an open USB port on your computer. This allows unattended shutdown of your computer

using either the built-in feature within the Microsoft® Windows® operating system or the Liebert

Multilink® Shutdown software located on the CD that shipped with the UPS. Use of this feature is not

required for proper operation of the UPS.

You are now ready to start the UPS. Plug the UPS input cord into the wall outlet. To turn on the UPS, press

and hold the ON/OFF button until you hear the UPS beep, then release the button. The connected

equipment immediately receives power and the UPS starts a short, self system test (electronics and

battery check). When the unit passes all self checks, only the green LED should be lit indicating normal

operation.

NOTE: While every precaution has been taken to ensure that the battery is in good condition, we

recommend allowing the UPS to charge the battery for at least 4 hours prior to providing full back-up

time protection for any utility-power abnormality.

1.4 UPS Operation

The UPS is designed for easy operation. Once the UPS is plugged into the wall outlet, it begins to charge

the battery whether the UPS has been turned on or not.

To turn on the UPS, press and hold the ON/OFF button until the unit beeps, then release the button.

To turn off the UPS, press and hold the ON/OFF button for at least 1 second then release the button. To

completely stop all UPS operation, once the UPS is turned off, unplug the input cord from the wall outlet.

During normal operation, the UPS protects the connected equipment from utility abnormalities, such as

brownout/sags, over-voltage/surges, and complete outages. During these periods, the UPS automatically

draws power from the battery to support the connected equipment that is plugged into the battery-

backed outlets. Note that equipment plugged into the surge-only outlets shut down in these conditions. If

the utility power problems are long-term, the UPS will eventually shut down because all battery power is

exhausted. Once utility power is restored to normal operating parameters for the UPS, it automatically

restarts and begins to power the connected equipment and to recharge the battery for the next utility

abnormality.

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1.5 Alarms

1.5.1 On Battery

When the UPS is operating on the batteries, the On Battery LED blinks on-off and the audible alarm

sounds once every 5 seconds. The alarm stops once the UPS returns to the AC normal mode.

1.5.2 Low Battery Warning

The UPS sounds 2 beeps every 5 seconds when the battery reserve runs low. This condition continues

until AC returns or the UPS shuts down from battery exhaustion.

1.5.3 Weak/Bad Battery

The UPS automatically tests the battery's condition and, if the battery fails the test because of weak

capacity, bad battery, or battery disconnected:

•The Low Battery/Overload/Fault LED illuminates

•The alarm beeps 3 times every 30 seconds until the battery is reconnected or replaced. This

alarm repeats until the batteries pass a self test.

We recommend that the UPS charge overnight before performing a battery test to confirm a Weak/Bad

Battery condition.

1.5.4 Overload

When the amount of equipment connected to the UPS exceeds its power rating, the Low

Battery/Overload/Fault LED illuminates, and the UPS sounds 1 beep every half second (AC and Battery

modes). The alarm remains on until the excess load is removed or the UPS's self-protection circuit shuts

down the UPS.

1.5.5 UPS Fault

When the UPS detects a hardware fault, the Low Battery/Overload/Fault LED illuminates and the UPS

sounds a constant alarm. The fault condition, in some instances, may be reset by turning the UPS off and

then back on.

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1.6 Troubleshooting

SYMPTOM POSSIBLE CAUSE WHAT TO DO

UPS will not turn on. On/Off/ button not pressed. Press and release the On/Off button to start UPS.

UPS operates in battery mode

only, even though normal AC

power is present.

Input AC circuit breaker is

tripped.

Reset circuit breaker by pressing the plunger back in. If the AC circuit breaker trips

after UPS starts up, reduce the load on the UPS.

Fault LED is illuminated. UPS has detected an

internal fault. Call for a replacement unit.

The On Utility LED LED is

illuminated, but there is no

output.

The UPS is being controlled

via its communications port.

Disconnect the computer cable from the UPS and press the On button. If UPS works

normally, the software has control of the UPS. If the UPS still does not have output

power, call for service.

UPS does not provide expected

runtime.

The batteries may be weak

or at the end of useful

service life.

Charge the batteries for 8-hours and retest. If the run time is still less than expected,

the batteries may need replaced, even though the Weak/ Bad Battery LED is not

illuminated.

Low Battery LED is illuminated.

Loose connections at the

batteries, Weak batteries,

Bad batteries.

Check battery connections, charge the batteries for 8-hours, replace the batteries.

Overload LED is illuminated. The load has exceeded the

UPS's capacity. Check the "Specifications" on page12 table that follows. Remove part of the load.

1.7 Maintenance and Battery Replacement

1.7.1 Battery Charging

The batteries are valve-regulated, non-spill-able, lead acid and should be kept charged to attain their

design life. The Liebert PST4 charges the batteries continuously when it is connected to the utility input

power. If the Liebert PST4 will be stored for a long time, we recommend connecting the UPS to input

power for at least 24 hours every 4 to 6 months to ensure full recharge of the batteries.

1.7.2 Precautions

Although the Liebert PST4 is designed and manufactured to ensure personal safety, improper use can

result in electrical shock or fire. To ensure safety, observe the following precautions:

•Turn off and unplug the UPS before cleaning it.

•Clean the UPS with a dry cloth. Do not use liquid or aerosol cleaners.

•Never block or insert any objects into the ventilation holes or other openings of the UPS.

•Do not place the UPS power cord where it might be damaged.

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1.7.3 Battery Replacement Precaution

Before proceeding, please review the battery safety precautions.

WARNING: Risk of electric shock and explosion. Can cause equipment damage, injury and

death. Do not dispose of the battery in a fire. The battery may explode. Do not open or damage

the battery. Released electrolyte is toxic and is harmful to skin and eyes. If electrolyte comes

into contact with the skin, wash the affected area immediately with plenty of clean water and

get medical attention.

WARNING: Risk of electric shock. Can cause equipment damage, injury and death.

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 and other metal objects.

- Use tools with insulated handles.Wear rubber gloves and boots.

- Do not lay tools or metal parts on top of batteries.

- Disconnect charging source prior to connecting or disconnecting battery terminals.

- Determine if the battery is inadvertently grounded. If it is inadvertently grounded, remove the

source of the ground. Contact with any part of a grounded battery can result in electrical

shock. The likelihood of such shock will be reduced if grounds are removed during installation

and maintenance (applicable to a UPS and a remote battery supply not having a grounded

supply circuit).

1.7.4 Information for the Protection of the Environment

UPS SERVICING - This UPS makes use of components dangerous for the environment (electronic cards,

electronic components). The components removed must be taken to specialized collection and disposal

centers.

NOTICE TO ALL CUSTOMERS: DISPOSAL OF OLD APPLIANCES - This product has been

supplied from an environmentally aware manufacturer that complies with the Waste

Electrical and Electronic Equipment (WEEE) Directive 2002/96/CE. The “crossed-out

wheelie bin” & recycle symbol is placed on this product to encourage you to recycle

wherever possible. Please be environmentally responsible and recycle this product through

your recycling facility at its end of life. Do not dispose of this product as unsorted municipal

waste. Follow local municipal waste ordinances for proper disposal provisions to reduce the

environmental impact of waste electrical and electronic equipment (WEEE).

1.7.5 Battery Replacement Procedure

1. Turn the UPS on its side.

2. Remove and set aside the two battery-compartment retaining screws (item1).

3. Slide the battery compartment cover outward and lift-off to expose the battery (item2).

4. Grasp the battery and gently pull it out far enough to disconnect the battery wires.

5. Disconnect the battery positive (Red) wire and the battery negative (Black) wire. (item3).

6. Remove the battery and set aside.

7. Orient the new battery in the same direction as the original battery and place the new battery

close enough to connect the battery wires.

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