Emerson GXT2U user manual Battery test is performed

Page 31

Troubleshooting Guide (Continued)

Problem

Cause

Solution

 

 

 

Fault and Bypass

UPS PFC (Power Factor Cor-

UPS requires service. Contact

indicator LEDs and

your local dealer, Liebert repre-

diagnostic LED D

rection Circuit) fault.

sentative or the Liebert World-

are illuminated.

 

wide Support Group.

Fault and Bypass

 

UPS requires service. Contact

indicator LEDs and

UPS inverter fault.

your local dealer, Liebert Rep-

diagnostic LED E are

resentative or the Liebert

 

illuminated.

 

Worldwide Support Group.

 

 

 

Fault indicator LED

 

Replace batteries. Contact your

and diagnostic

UPS failed the battery test.

local dealer, Liebert representa-

LED A and C are illu-

tive or the Liebert Worldwide

minated.

 

Support Group.

 

 

Your UPS has received a signal

Fault and Bypass

 

or command from the attached

UPS shutdown due to a com-

computer. If this was inadvert-

indicator LEDs and

ent, ensure the communication

diagnostic LED C

mand from the communica-

cable used is correct for your

and E are illumi-

tions port(s).

system. For assistance, con-

nated.

 

tact your local dealer, Liebert

 

 

representative or the Liebert

 

 

Worldwide Support Group.

 

UPS detected a line-to-neutral

 

 

reversal or a loss of proper

 

 

grounding; continuous horn and

 

AC LED is

UPS will not start.This is active

Contact a qualified electrician to

only when power is first applied

flashing.

verify site wiring.

to the input. Once the UPS is

 

 

 

running, the AC LED will not

 

 

start flashing, even if the input

 

 

wiring is changed.

 

 

 

Check battery connections,

 

 

completely power down and

Battery LED is

Battery source is not available;

restart UPS.

NOTE: If the battery circuit

flashing.

continuous horn.

opens while the UPS is running,

 

 

it will be detected when the next

 

 

battery test is performed.

 

 

The AC input powers the PFC

 

 

input and serves as the bypass

 

Bypass voltage is present, but

source. If the AC is present but

 

the voltage or frequency

Bypass LED is

is disabled for use because the

exceeds the acceptable range

flashing.

voltage or frequency is outside

for safe operation with a load,

 

acceptable limits.

 

the bypass will be disabled and

 

 

this LED will flash, indicating

 

 

that the bypass is unavailable.

27

Image 31
Contents Liebert GXT2U Page Table of Contents Operating Instructions Important Safety Instructions Page Glossary of Symbols Introduction Transient Voltage Surge Suppression and EMI/RFI Filters Rectifier/Power Factor Correction PFC CircuitBattery Charger Major ComponentsDC-to-DC Converter BatteryDynamic Bypass Liebert GXT2U-Rear View Base to accommodate InstallationTower UPS Installation PreparationOptional rack mount handles Rack-Mount UPS Conversion and InstallationM5 screws Mounting railsApply External Battery Cabinet Installation Page ON/Alarm Silence/Manual Battery Test Button Controls and IndicatorsUPS on Indicator LED Green Load/Battery Level Indicators 4 Green, 1 AmberFault Indicator LED Red Bypass Indicator LED AmberOutput Voltage Selection Bypass Mode Operation Normal Mode OperationOperating Instructions Battery Recharge Mode Battery Mode OperationPin Assignment Description Pins 4 & 5 Remote Shutdown on BatteryCommunications Communications Interface PortAuto-Enable Output Pin 6 Logic Pins 5 & 6 Any-Mode ShutdownUPS Intelligent Communications Liebert GXT2U Configuration Program Abilities Configuration ProgramBattery Replacement MaintenanceInternal Battery Replacement Procedures On bypass due to PFC failure beep every 4 sec TroubleshootingOn bypass due to overtemperature condition beep every 4 sec On bypass due to DC bus overvoltage beep every 4 secProblem Cause Solution Troubleshooting GuideBattery test is performed Condition Alarm Alarm ConditionsSpecifications Dimensions in mm Battery Cabinet SpecificationsWEIGHT, lb kg Minutes Battery Run TimesInternal Battery Load %Product Warranty Registration Page Page Page Emerson Network Power Technical Support / ServiceLocations
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