Liebert 610 manual Alarm messages and corrective actions, AC Input

Page 57

Operation

Table 4

Alarm messages and corrective actions

Alarm

 

Special

 

Message

 

Functions

Meaning and Corrective Action

AC INPUT

 

 

 

 

 

 

The rectifier input line voltage is outside of specified limits or the input circuit breaker is

Input fail

 

 

opened while the battery circuit breaker remains closed. The battery supplies power to the

 

 

critical load through the UPS inverter. Provide an alternate source of AC power or prepare to

 

 

 

 

 

 

initiate critical load procedures when battery reserve time is low.

 

 

 

 

DC BUS

 

 

 

DC Ground

 

D, L, S

Either the positive (+) or negative (-) DC bus is grounded. No transfer or shutdown occurs.

 

Contact Liebert Global Services (1-800-LIEBERT) at once. Do not attempt to locate or repair

Fault

 

 

 

the fault.

 

 

 

 

 

 

 

DC Capacitor

 

D, F, S

At least one DC capacitor fuse has opened. The UPS module is shut down and isolated.

Fuse Blown

 

Contact Liebert Global Services at once. Do not attempt to reset the circuit breakers.

 

 

 

 

 

The module battery circuit breaker (MBD) is open. This circuit breaker can be opened either

Battery CB

 

 

manually or automatically in a UPS shutdown procedure. If the UPS is operating with this

 

D, S

breaker open, the critical load is not protected from loss of the utility source power.

Open

 

 

 

After AC power is restored and the DC bus is at 100% operating voltage, manually close the

 

 

 

 

 

 

battery circuit breaker so the rectifier can charge the battery.

 

 

 

 

 

 

 

The battery is discharging. This occurs whenever the battery supplies power to the load for

 

 

 

more than 5 seconds because of input power failure, a rectifier problem or an overload

Battery

 

D, R, S

condition. If the input power or a source of auxiliary power is restored to the UPS module,

Discharging

 

the UPS automatically returns to normal operation. Watch the battery voltage carefully.

 

 

 

 

 

Reduce the load (begin controlled shutdown) to extend the battery back-up time. Reset the

 

 

 

UPS alarms after the input power is restored. The message clears after 30 seconds.

Low Battery

 

 

The battery voltage is approaching the minimum discharge voltage (approximately

 

D, R, S

5 minutes remaining). Complete the controlled shutdown of the critical load. Reset the

Warning

 

 

 

alarms if the input power is restored before shutdown.

 

 

 

 

 

 

 

Low Battery

 

D, F,

The battery voltage has decreased to the minimum discharge value. The UPS module shuts

 

down (no power to the critical load) and the battery and input circuit breakers trip open.

Shutdown

 

L, S

 

Perform a UPS system start-up procedure when AC power becomes available.

 

 

 

 

 

 

 

Battery Over

 

 

The measured battery temperature exceeds the customer-defined limit for more than

Temperature

 

D, S

1 minute. Alarm automatically clears when temperature falls below the limit for more than

(Optional)

 

 

1 minute. Determine the overtemperature cause.

Battery

 

 

The UPS rectifier/charger is reducing the battery float voltage setpoint to compensate for

Charge

 

S

elevated battery temperature. The UPS automatically reverts to normal operation when

Compensation

temperature returns below the limit.

 

(Optional)

 

 

 

 

 

 

 

DC

 

 

The maximum preset value of the DC Bus voltage has been exceeded. The UPS transfers

 

D, F,

to bypass and the input and battery circuit breakers trip open. Contact Liebert Global

Overvoltage

 

 

L, S

Services at once. A fault may have occurred within the UPS. Do not attempt to reset the

Shutdown

 

 

 

circuit breaker.

 

 

 

 

 

 

 

BYPASS

 

 

 

Load On

 

 

The critical load is being supplied power from the bypass line and is therefore exposed to

 

D, R

utility power disturbances. Clear all of the alarms before attempting to retransfer the load

Bypass

 

 

 

from the bypass line to the UPS.

 

 

 

 

 

 

 

Auto Transfer

D, E, F

The critical load has been automatically transferred to the bypass line. Use the History

Status screen to determine the cause for the transfer. Clear all of the alarms before

to Bypass

 

 

 

attempting to retransfer the load from bypass to UPS.

 

 

 

 

 

 

 

Auto

 

 

An automatic retransfer will be initiated when the OK to Transfer condition has been present

Retransfer

 

 

for 10 seconds, if the overload has dropped below 100% of the rated load

Primed

 

 

 

 

 

 

A manual retransfer is required. Either an overload condition has lasted more than

Manual Reset/

 

5 minutes or no more auto-retransfer attempts are available. Note that this alarm is only

Retransfer

 

 

used if auto-retransfer attempts are enabled. Perform a manual retransfer if all necessary

 

 

 

conditions are present.

D = auto-dial

 

L = latches

 

E = logs only

 

R = remote

 

F = freezes

 

S = summary

 

D* = auto-dial initiated by Auto Transfer to Bypass if load is on UPS when alarm occurs

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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