Liebert Complete Troubleshooting Guide for Your Power Supply Needs

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Troubleshooting

12.0TROUBLESHOOTING

The information below indicates various symptoms a user may encounter in the event the UPStation GXT2 develops a problem. Use this information to determine whether external factors caused the problem and how to remedy the situation.

1.1. The Fault indicator will illuminate, indicating the UPS detected a problem.

2.2. An alarm will sound, alerting that the UPS requires attention.

Fault

Example shows UPS on bypass because of output overload, signified by amber load indicator.

AC INPUT

BA

ON

BYPAS S

3.3. One or more additional battery level LED indicators will be illuminated to provide a diagnostic aid to the operator, as described below:

Table 3

Indicator meanings

 

 

LED status

Diagnosis/Audible alarm

All LEDs

 

On bypass due to output overload; beep every half-second

 

 

 

A LED

 

On bypass due to overtemperature condition; beep every 4 sec.

 

 

 

B LED

 

On bypass due to DC bus overvoltage; beep every 4 sec.

 

 

 

C LED

 

DC-DC failure during battery mode; beep every 4 sec.

 

 

 

D LED

 

On bypass due to PFC failure; beep every 4 sec.

 

 

 

E LED

 

On bypass due to inverter failure; beep every 4 sec.

 

 

 

A&C LEDs

 

UPS failed battery test; long beep every minute

 

 

 

C&E LEDs

 

UPS shutdown due to command from communication port (SNMP); no beep

 

 

 

Battery LED Flashing

Internal Battery source not available (continuous horn). Check Battery connection,

completely power down and reboot UPS.

 

 

A&E LEDs

 

Fan locked

 

 

 

B&C

 

REPO active. UPS cannot run with REPO loop open.

 

 

 

B&D

 

UPS is OFF due to previous REPO shutdown. Autorestart disabled.

 

 

 

D&E

 

Charger Malfunction

 

 

 

Under fault conditions, the Fault indicators will be illuminated indefinitely while battery charger is operational, or for a maximum of 5 minutes while the battery charger is not operational.

If a problem persists, consult your local dealer, Liebert representative or contact the Liebert World- wide Support Group. Please have the UPS model number and serial number available at the time of your inquiry.

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Contents GXT2-6000RT230& GXT2-4500RT230 Power AvailabilityPage Table of Contents Operating Instructions MaintenanceTroubleshooting SpecificationsImportant Safety Instructions Glossary of Symbols Introduction System Description Rectifier/Power Factor Correction PFC CircuitBattery Charger InverterDC-to-DC Converter BatteryDynamic Bypass Major Components Main Frame and ElectronicsGXT2, rear view Internal Battery PacksPower distribution boxes, basic, optional Removable Power Distribution BoxWHAT’S Included GXT2 Configuration ProgramRack-Mount UPS Installation Install the Main CabinetInstallation and Configuration Tower UPS InstallationQuantity Installing the Adjustable Rack-Mount Kit-Sold SeparatelyM4 nuts External Battery Cabinet Installation Distribution Box Electrical Connections Connect the Internal Batteries Using the External ConnectorConnect Input/Output Power StoragePD-CEHDWR and PD-CEHDWRBYP Terminal Block Connections Electrical specificationsInitial START-UP and Electrical Checks What You Will Need Configuration ProgramControls and Indicators ON/Alarm Silence/Manual Battery Test ButtonStandby/Manual Bypass Button Bypass Indicator LED Amber Load Level Indicators 4 Green, 1 AmberBattery Level Indicators 5 Green Fault Indicator LED RedBattery Recharge Mode Normal Mode OperationBattery Mode Operation Bypass Mode OperationDB-9 pin assignment Pin 4 Remote Shutdown on BatteryCommunications Interface Port CommunicationsUPS Intelligent Communications Repo switch connection diagram Remote Emergency Power OffMaintenance Internal BatteryInternal Battery Replacement PD-CEHDWR-Manual Bypass Switch Available Disconnect AC Power ConnectionsReconnect Indicator meanings TroubleshootingLED status Diagnosis/Audible alarm Troubleshooting guide Alarm conditions Troubleshooting guide cont’dBattery run times Auto-Learning Battery Run Times UPS specifications SpecificationsExternal battery cabinet specifications Model Number Power distribution specificationsSpecifications Page Company Behind the Products Technical Support/ServiceLocations