Emerson GXT3 230V user manual Auto-Learning Battery Run Times

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Specifications

Table 11 Typical battery run times, minutes at 25°C (77°F ), 100% resistive load

Number of

 

 

 

 

Load%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Batteries/ Cabinets

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

 

 

 

 

 

 

 

 

 

 

 

Internal Battery

105

52

40

27

21

17

14

12

10

9

 

 

 

 

 

 

 

 

 

 

 

Internal Battery

 

 

 

 

 

 

 

 

 

 

+ 1 External

187

106

78

53

47

40

34

28

23

21

Battery Cabinet

 

 

 

 

 

 

 

 

 

 

Internal Battery

 

 

 

 

 

 

 

 

 

 

+ 2 External

217

146

106

91

71

53

49

45

41

37

Battery Cabinets

 

 

 

 

 

 

 

 

 

 

Internal Battery

 

 

 

 

 

 

 

 

 

 

+ 3 External

360

188

132

106

95

79

68

53

50

47

Battery Cabinets

 

 

 

 

 

 

 

 

 

 

Internal Battery

 

 

 

 

 

 

 

 

 

 

+ 4 External

360

205

159

124

106

98

83

75

66

53

Battery Cabinets

 

 

 

 

 

 

 

 

 

 

Using the configuration program, the user may specify the number of Liebert® external battery cabinets attached to the UPS. The factory default is programmed for internal batteries only.

See Table 11 shows the estimated run times at different loads.

12.1Auto-Learning Battery Run Times

As batteries age, the estimated runtimes may become less accurate. The Liebert GXT3is programmed to “learn” from a full battery discharge and modify the estimated runtime for the measured battery capacity. This can improve accuracy and compensate for aging batteries or batteries that operate at different ambient temperatures.

The UPS will update the anticipated run time calculation only under certain conditions.

The UPS must have a steady load that is greater than 20%.

The UPS must be at 100% charge at the start of a battery discharge.

The battery discharge must continue uninterrupted until the batteries reach their end-of-dis- charge voltage.

If all conditions are not met, the run time calculation will not be modified.

If the configuration program is used to change the number of battery cabinets, then the values in the battery above table will be restored. This will override any value that is Auto-Learned.

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Contents Liebert GXT3 230V,5000VA-UL Listed Page Table of Contents Specifications MaintenanceTroubleshooting CommunicationFigures Page Important Safety Instructions Information for the Protection of the Environment Glossary of Symbols Introduction Inverter Rectifier/Power Factor Correction PFC CircuitBattery Charger System DescriptionBattery DC-to-DC ConverterDynamic Bypass Main Frame and Electronics Major ComponentsLiebert GXT3 5000VA Terminal Block Communication Internal Battery Packs Removable Power Distribution BoxOuter Surface View Power Distribution Box Quick-Connect WHAT’S Included Tower UPS Installation Install the Main CabinetInstallation and Configuration Connectors Spacers Support BasesOperation and Display Panel Rotated Clockwise 90 Degrees Rack-Mount UPS InstallationInstalling the Adjustable Rack-Mount Kit-Sold Separately QuantityDepth UPS or battery813mm Retaining latchExternal Battery Cabinet Installation UPS or battery cabinet Apply greaseConnect Input/Output Power To removeTo install Distribution Box Electrical Connections HardwireTerminal Block ConnectionsElectrical specifications Branch circuit breaker ratingsConfiguration Program Features Configuration ProgramWhat You Will Need ON/Alarm Silence/Manual Battery Test Button Controls and IndicatorsStandby/Manual Bypass Button Load Level Indicators 4 Green, 1 Amber Battery Level Indicators 5 GreenUPS Status Indicators UPS status indicatorsUPS Status Indicator Icon Color Description Startup Checklist for the Liebert GXT3 Initial Startup and Electrical ChecksOperation Maintenance Bypass Manual Battery TestDisconnecting Input Power from the Liebert GXT3 Put the Liebert GXT3 in Manual BypassIT Power System Configuration Remove Screws IT Power System ConnectorsCommunication Interface Port Any Mode ShutdownBattery Mode Shutdown Dry ContactOn Battery Low BatteryLiebert IntelliSlot Communication Cards Remote Emergency Power Off Repo switch connection diagramLiebert MultiLink Replacing the Internal Battery Pack MaintenanceBattery Replacement Procedures Battery Charging PrecautionsChecking UPS Status Checking UPS FunctionsIndicators UPS SymptomsTroubleshooting Indicator Diagnosis/Audible alarmAudible Alarm Audible alarm descriptionCondition Alarm Troubleshooting table Problem Cause SolutionIlluminated Specifications UPS specificationsOperating temperature parameters Power distribution specificationsExternal battery cabinet specifications Auto-Learning Battery Run Times Page Twor k Ne tIs t Care