Input Power Failure-Load on Battery | Liebert 1000kVA specs

Operation

3.3.4Input Power Failure—Load on Battery

If the utility AC power source fails or is outside the acceptable range, the battery plant becomes the power source for the UPS module inverters. The UPS system continues to supply power to the critical load and also to the controls of the UPS modules and the SCC.

You can use the Battery Time screen at the UPS modules to monitor the present battery voltage com- pared to the shutdown value. The length of time the battery can sustain the load depends on the size of the load and the size and condition of the battery plant. The battery plant is usually large enough to supply a 100% rated load for 15 minutes.

Alarm messages that indicate battery status are Battery Discharge, Low Battery and Battery Shut- down. The voltage limits for these alarms are displayed on the UPS module Alarm Limit Settings screen. These limits were selected for your installation by Liebert Global Services during initial start- up.

The battery block in the UPS module Monitor/Mimic Display indicates Charge or Discharge and the current in Amperes. Maximum battery discharge current ranges from 326 amps (for 150kVA) to 1620 amps (for 750kVA). Refer to the separate Installation Manual or drawings for specific data on your system.

Figure 56 Input power fail—load on battery

RIB

RIB

RIB

BFB

UPS #3

UPS #2

UPS

#1

CB1

CB1

CB1

SBS

BIB

R

R

R

SBB

I

I

I

MBB

CB2

CB2

CB2

System

SKRU

Controls

Output

MIB

										SCCT
			MBD							To Critical Load
										To Critical Load
						MBD				MBD
	Battery									SCCT
				Battery			Battery			SCCT
				Battery			Battery			(can accommodate up to 6 UPS modules)
										(can accommodate up to 6 UPS modules)

77

Image 83

Liebert 1000kVA manual Input Power Failure-Load on Battery, Input power fail-load on battery

Contents

Series 610 UPS Battery Cabinet Precautions Table of Contents Specifications Maintenance Figures Tables Important Safety Instructions Multi-Module UPS, 100-500kVA System Description Multi-Module UPS, 500-750kVA Designed for Success ReliabilityTypes of System Control Cabinets SCCs Other Factors to Consider Safety PrecautionsInput Power Failure Modes of Operation Operator Controls 1989-2003 Options Battery Two Breaker Maintenance Bypass Battery Racks or CabinetsModule Battery Disconnect Three Breaker Maintenance Bypass System Control Cabinet General Component Descriptions UPS Module Battery Plant Software Detailed Component DescriptionsControls Hardware Input Circuit Breaker Input Power FactorRectifier/Charger Operation Battery Equalize Charge Circuit Battery Charging CircuitBattery Disconnect Battery Charge Current Limiting Output Regulation and Overload Performance Non-Linear Load CharacteristicsUnbalanced Load Characteristics Inverter Shorted SCR Monitoring Static BypassFuse Protection Load Transfers Static Switch IsolationPulsed Parallel Operation Transfer and Retransfer Conditions Retransfer Inhibited Redundant Mode Display Screen and Operator Controls Features Description Function 500kVA1000kVA Operation Description Location Function Refer to 3.4.5 Shutdown ProceduresNumbers are used as keys to data in , below Switches behind SCC control panel door Menu tree Menu Tree Navigation Module Master Menu Master Menu ScreenSCC Master Menu Operation Output Metering Displays SCC Monitor/Mimic Display ScreenInput Metering Displays Item 6 System Status Messages Status/Alarm Message AreasItem 7 Alarm Messages Item 5 Module Status Messages Module Monitor/Mimic display screen Module Monitor/Mimic Display Screen Item 5 Alarm Messages Alarm Messages Module Display SCC Display Monitor/Mimic display example Utility fail KVA / 217 kW 325A 325A 325A MOD On Line OFF Line SUM ALM B-C C-A 0V 0V Not OK to Transfer Static Switch Connected Walk-in display screen during start-up Walk-In Display Screen Present Status Status Reports Screens Module Status Report Event HistorySCC Status Report History status report screens History Status Alarm in SCC Alarm in Module Alarm conditions that freeze history data gathering System Status Battery Cycle Monitor-Module Only Battery cycle monitoring summary screen SCC system configuration screen System Configuration Screens Date screen Date Time screen Time Auto Dial Auto dial setting screen Maximum Auto-Retransfer Attempts Modem Baud Rate Retransfer Attempts System Current RatingLanguage Selection System Options Continuous Duty Static Switch Optional Battery test screen-MMU only SCC and module remote monitor indications Remote Monitor Module alarm limit settings screen Alarm Limit Settings Screen Temperature Limit Setting Optional Battery Float Voltage Refer to 3.4.3 Load Transfer Procedures for more details Load Transfer Procedures Screen Refer to 3.4.1 SCC Start-Up Procedure for more details Start-Up Procedures Screen Module start- up procedures screens Shutdown Procedures Screen SCC shutdown procedures screen Battery time screen 15 minute discharge Battery Time Screen Module Only Elapsed Time Minutes Upper Limit Actual Lower Limit Operation Meter calibration screen Meter Calibration Screen Battery equalize screen Battery Equalize Screen System Status Messages Alarm and Status Messages Module Status Messages Abbreviation Definition Abbreviations used in alarm messagesLoad Block Messages Alarm messages meaning and corrective action Control Power Manual ResetStatic Switch Bypass Phase Module N Off Reverse PowerInverter Fault Transfer New Alarm Battery OvertempOvertemperature Timeout Special Functions Alarm messages summaryAlarm Message Requesting Information Communication InterfacesWorldwide Reporting Auto-Dial Site Reporting SiteScan or Snmp Local Reporting to a TerminalLocal Reporting to a Monitor Separate / Simultaneous Outputs Series 610 terminal commandsRemote Monitor Panel Circuit breaker abbreviations Abbreviation Circuit Breaker OK to Transfer Load on Bypass Load on bypass, UPS available Momentary Overloads Momentary overload, pulsed static bypass switch Input power fail-load on battery Input Power Failure-Load on Battery One module off-line, load on UPS One Module Off-Line Load on UPS-battery not available Off Battery Emergency Modules Off Refer to 3.4.5 Shutdown Procedures Emergency power off Remote Emergency Power Off System Shutdown Refer to 3.3.10 Maintenance Bypass Load on maintenance bypass, two breakers Refer to 3.5 Automatic Operations for more details Manual ProceduresSCC Start-Up Procedure Operation Operation SCC start-up procedures screen UPS Module Start-Up Module start-up procedures screen Operation Manual Transfer Instructions UPS Lead Load Transfer Procedures If the load is on the UPS System Bypass Maintenance Bypass Load TransfersIf the load is on Maintenance Bypass Shutdown Procedures System Shutdown Procedure Module Shutdown Procedure Local Emergency Modules Off Lemo Remote Emergency Power Off RepoAutomatic Operations 150% Overloads Without TransferAutomatic Transfers to Bypass 1000% Automatic Emergency Modules Off Automatic Retransfers to UPSAutomatic Module Off-Line Maintenance Training Liebert Global ServicesMaintenance Agreements The Signature Program Professional Start-Up Air Filters Routine MaintenanceRecord Log Limited Life Components Battery Safety Precautions Battery Maintenance Avertissement Number of Cells Battery Voltage VDC Nominal Float Matching Battery Cabinets Optional Rack-Mounted Batteries Battery retorque valuesBattery voltage record Torque Requirements Torque specifications unless otherwise labeledDetection of Trouble Recommended Test Equipment Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Corrective Actions KVA Power factor pf KVARating Environmental Conditions Specifications applicable to environment Battery Operation Adjustments Electrical Specifications Specifications 112 Page United States 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