Liebert 610 manual Maintenance Bypass Load Transfers

Page 81

Operation

3.4.3Maintenance Bypass Load Transfers

To manually transfer the load between Maintenance Bypass and the UPS bypass line, carefully follow these instructions. Do not transfer the load between Maintenance Bypass and the UPS module (inverter) output. Use the Monitor/Mimic Display screen to verify the UPS bypass line is available.

! CAUTION

Make sure you understand the proper sequence before operating any circuit breaker. Operating a Maintenance Bypass circuit breaker out of sequence could cut off power to the critical load.

! CAUTION

The UPS system must be on internal bypass before performing the following procedures and operating MIB or MBB, or damage to the UPS may occur and the critical load may be lost.

STEP 1 (Maintenance Bypass Load Transfers - If the Load is on the UPS Bypass)

a.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, press the button on the maintenance bypass cabinet to remove the key from the solenoid.

NOTE

If the maintenance bypass cabinet or switchboard has any other type of custom interlock, follow the specific instructions for that interlock system to remove the key.

b.If using a key interlock system, insert the key into the lock for the Maintenance Bypass Breaker (MBB) to enable it to be closed.

c.Close the Maintenance Bypass Breaker (MBB).

d.Open the Maintenance Isolation Breaker (MIB). The UPS system is now isolated from the critical load, and the load is now on Maintenance Bypass.

e.If using a key interlock system, remove the key from the lock for the Maintenance Isolation Breaker (MIB) to lock it open.

f.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, replace the key into the solenoid.

g.If UPS bypass shutdown is required, open the Bypass Input Breaker (BIB).

STEP 2 (Maintenance Bypass Load Transfers - If the Load is on Maintenance Bypass)

a.Close the Bypass Input Breaker (BIB) or verify BIB is closed. Note that UPS Bypass circuit breaker (motorized) must also be closed. Refer to 3.4.1 - Start-Up Procedure.

b.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, press the button on the maintenance bypass cabinet to remove the key from the solenoid.

NOTE

If the maintenance bypass cabinet or switchboard has any other type of custom interlock, follow the specific instructions for that interlock system to remove the key.

c.If using a key interlock system, insert the key into the lock for the Maintenance Isolation Breaker (MIB) to enable it to be closed.

d.Close the Maintenance Isolation Breaker (MIB).

e.Open the Maintenance Bypass Breaker (MBB). Load is now on UPS Internal Bypass.

f.If using a key interlock system, remove the key from the lock for the Maintenance Bypass Breaker (MBB) to lock it open.

g.If the maintenance bypass cabinet or switchboard has an optional 2-key interlock system, replace the key into the solenoid.

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Contents Series 610 UPS Battery Cabinet Precautions Table of Contents Specifications MaintenanceFigures Tables Important Safety Instructions System Description Reliability Designed for SuccessOther Factors to Consider Safety Precautions Modes of Operation Operator Controls Options Temperature-Compensated Charging Customer Alarm InterfaceBattery Load Testing Automatic RestartBattery Plant General Component DescriptionsUPS Module Detailed Component Descriptions Controls HardwareSoftware Rectifier/Charger Input Power FactorOperation Input Circuit BreakerBattery Disconnect Battery Charging CircuitBattery Charge Current Limiting Battery Equalize Charge CircuitUnbalanced Load Characteristics Non-Linear Load CharacteristicsInverter Output Regulation and Overload PerformanceStatic Bypass Static Switch Backfeed ProtectionBypass Circuit Breaker Pulsed Parallel OperationTransfer and Retransfer Conditions Three Breaker Maintenance Bypass Switchboard Display Screen and Operator Controls Features100kVA 500kVA 1000kVA Description Function Operator controls, typical systemDescription Function Series 610 UPS operator control panelMenu tree Menu Tree NavigationMaster menu screen Master Menu ScreenOperation Monitor/Mimic Display Screen Input Metering DisplaysOutput Metering Displays Status/Alarm Message Areas Item 7 Alarm MessagesItem 6 Status Messages Monitor/Mimic display example Utility fail Walk-in display screen Walk-In Display ScreenStatus reports screen Status Reports ScreensEvent History Present StatusHistory status report screen History StatusSystem Status Battery Cycle MonitorBattery cycle monitoring summary screen System configuration screens System Configuration ScreensMaximum auto-retransfer attempts screen Maximum Auto-Retransfer AttemptsDate screen DateTime screen TimeAuto dial screen Auto DialSystem Options Language SelectionContinuous Duty Static Switch Optional Additional alarm messages Alarm messagesRemote Monitor Standard Remote Monitor Indications ChannelOverload Alarm Alarm Limit Settings ScreenBattery Discharging Low BatteryBattery Rating 100% Battery Shutdown 60 MinutesBattery Rating Temperature Limit Setting OptionalLoad transfer procedure screen Load Transfer Procedures ScreenRefer to 3.4.1 Start-Up Procedure for more details Start-Up Procedures ScreenBattery Time Screen Shutdown Procedures ScreenBattery time screen 15-minute discharge Elapsed Time Minutes Upper Limit Actual Lower LimitStatus Reports Screens Meter Calibration ScreenBattery equalize screen Battery Equalize ScreenAlarm and status message screen Alarm and Status Messages Status MessagesAbbreviations used in alarm messages Alarm MessagesAC Input Alarm messages and corrective actionsUPS System Cooling UPS SystemAlarm Message Special Functions Alarm messages-summaryCommunication Interfaces Worldwide ReportingAuto-Dial Local Reporting to a Monitor Local Reporting to a TerminalSite Reporting SiteScan or Snmp Requesting InformationRemote Monitor Panel Series 610 terminal commandsSeparate / Simultaneous Outputs Keys FunctionLoad on Bypass Circuit breaker abbreviationsAbbreviation Circuit Breaker Load on bypass UPS available OK to TransferLoad on UPS bypass available Momentary Overloads Momentary overload through pulse-parallel static switchInput power fail-load on battery Input Power Failure-Load on BatteryLoad on UPS-battery not available Off BatteryEmergency Module Off Refer to 3.4.4 Shutdown ProceduresEmergency power off Remote Emergency Power OffModule Shutdown Refer to 3.3.9 Maintenance BypassLoad on maintenance bypass two breakers Load on maintenance bypass three breakers Start-Up Procedure Manual ProceduresStart-Up Procedure Set the Static Switch Disconnect or to OFF open Start-up procedures Start-Up Procedure Load transfer procedures screen Load Transfer ProceduresMaintenance Bypass Load Transfers Shutdown Procedures Shutdown Procedures Module Shutdown ProcedureLocal Emergency Modules Off Lemo Remote Emergency Power Off RepoBattery exercise control screen above and results below Battery Exercise ProceduresOverloads Without Transfer Automatic Operations1000% 150%Automatic Retransfers to UPS Automatic Transfers to Bypass Overload ConditionAutomatic Transfers to Bypass UPS System Faults Automatic Restart Optional Enabling Automatic RestartSequence of Operation Maintenance Maintenance Agreements The Signature Program Liebert Global ServicesProfessional Start-Up TrainingRoutine Maintenance Record LogAir Filters Limited Life Components Battery Safety Precautions Battery MaintenanceAvertissement Number of Cells Battery Voltage VDC Nominal Float Matching Battery Cabinets OptionalBattery retorque values Battery voltage recordRack-Mounted Batteries Torque specifications unless otherwise labeled Detection of TroubleTorque Requirements Upstream Feeder Circuit Breaker Setting Inspections Reporting a ProblemCorrective Actions Recommended Test EquipmentPower factor pf KVA RatingKVA Environmental Conditions Specifications applicable to environmentBattery Operation AdjustmentsElectrical Specifications Page Company Behind the Products Technical Support/ServiceLocations United States
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