Remote Emergency Power Off, Emergency power off | Liebert 1000kVA

Operation

3.3.8Remote Emergency Power Off

The Remote Emergency Power Off (REPO) mode is used to remove all power from the critical load.

The Remote Emergency Power Off control is a switch located remotely from the UPS system. It will normally be in the same room as the critical load equipment. This mode can also be initiated by an automatic contact closure in the same external circuit as the manually operated switch.

When you operate the Remote Emergency Power Off switch, all UPS circuit breakers are opened, including the bypass circuit breaker. All power through the UPS is removed from the load. Typically, the REPO circuit also opens the circuit breakers that provide power to the bypass lines and the UPS controls.

Refer to 3.4.5 - Shutdown Procedures.

Figure 60 Emergency power off

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

81

Image 87

Liebert 1000kVA manual Remote Emergency Power Off, Emergency power off

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 Reliability Types of System Control Cabinets SCCsDesigned for Success 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 Detailed Component Descriptions Controls HardwareSoftware 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 Static Bypass Fuse ProtectionShorted SCR Monitoring Static Switch Isolation Pulsed Parallel OperationLoad Transfers Transfer and Retransfer Conditions Retransfer Inhibited Redundant Mode Display Screen and Operator Controls Features 500kVA 1000kVADescription Function Operation Refer to 3.4.5 Shutdown Procedures Numbers are used as keys to data in , belowDescription Location Function Switches behind SCC control panel door Menu tree Menu Tree Navigation Master Menu Screen SCC Master MenuModule Master Menu Operation SCC Monitor/Mimic Display Screen Input Metering DisplaysOutput 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 Event History SCC Status ReportModule 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 Abbreviations used in alarm messages Load Block MessagesAbbreviation Definition 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 Alarm messages summary Alarm MessageSpecial Functions Requesting Information Communication InterfacesWorldwide Reporting Auto-Dial Local Reporting to a Terminal Local Reporting to a MonitorSite Reporting SiteScan or Snmp Series 610 terminal commands Remote Monitor PanelSeparate / Simultaneous Outputs 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 Manual Procedures SCC Start-Up ProcedureRefer to 3.5 Automatic Operations for more details 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 Maintenance Bypass Load Transfers If the load is on Maintenance BypassIf the load is on the UPS System Bypass Shutdown Procedures System Shutdown Procedure Module Shutdown Procedure Remote Emergency Power Off Repo Automatic OperationsLocal Emergency Modules Off Lemo 150% Overloads Without TransferAutomatic Transfers to Bypass 1000% Automatic Retransfers to UPS Automatic Module Off-LineAutomatic Emergency Modules Off Maintenance Training Liebert Global ServicesMaintenance Agreements The Signature Program Professional Start-Up Routine Maintenance Record LogAir Filters Limited Life Components Battery Safety Precautions Battery Maintenance Avertissement Number of Cells Battery Voltage VDC Nominal Float Matching Battery Cabinets Optional Battery retorque values Battery voltage recordRack-Mounted Batteries Torque specifications unless otherwise labeled Detection of TroubleTorque Requirements Recommended Test Equipment Reporting a ProblemUpstream Feeder Circuit Breaker Setting Inspections Corrective Actions Power factor pf KVA RatingKVA Environmental Conditions Specifications applicable to environment Battery Operation Adjustments Electrical Specifications Specifications 112 Page United States 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