APC 20 - 200 KVA user manual List of secondary messages, Load on Mains

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Control-panel display (cont.)

List of secondary messages

LOAD ON MAINS 2

The load has been transferred to the bypass AC source (M2) and is no longer protected (only in on-line mode). The buzzer sounds continuously.

MAINS 2 OUTSIDE TOLERANCES TRANSFER DISABLED

CHECK MAINS 2

The bypass AC source (M2) frequency or voltage is outside tolerances and the inverter is unable to synchronise.

Transfer of the load from the inverter to the bypass AC source (M2) or vice- versa will result in an interruption of the supply of power to the load. The buzzer sounds slowly and discontinuously.

BATTERY OVERTEMPERATURE, CHECK VENTILATION

The battery temperature is outside tolerances. The buzzer sounds slowly and discontinuously.

BATTERY ROOM VENTILATION FAULT,

CHECK VENTILATION

A fault requiring servicing has occurred in the battery room ventilation system. The rectifier/charger shuts down after a 30-second time delay.

The user must take steps to re- establish correct operation of the ventilation system.

If a harmonic filter is present in the installation, this message also signals an abnormally high temperature in the filter inductor.

The buzzer sounds slowly and discontinuously.

MAINS 1 OUTSIDE TOLERANCES, CHECK MAINS 1

The normal AC source (M1) frequency or voltage is outside specified tolerances and the rectifier/charger has shut down. The inverter is on battery power.

MAINS 1 INPUT SWITCH Q1 IS OPEN

The normal AC input (M1) switch Q1 is open. It must be closed for rectifier/ charger start-up. The buzzer sounds slowly and discontinuously.

INTERNAL UPS FAULT,

LOAD TRANSFER FAULT,

CALL MAINTENANCE

A fault has occurred in the static switch that transfers the load between the inverter and the bypass AC source (M2). Servicing by the after-sales support department is required. The buzzer sounds continuously.

OVERLOAD

RATED CURRENT PER PHASE = XXX A

CHECK LOAD LEVEL

This display informs the user that load current is greater than rated current, and gives the value. The buzzer sounds continuously.

UPS SHUTDOWN DUE TO AN OVERLOAD,

CHECK LOAD LEVEL

This message follows the preceding when the overload persists. The UPS has shut down and the buzzer sounds continuously.

INVERTER NOT IN PHASE WITH MAINS 2.

TRANSFER DISABLED, CHECK MAINS 2

The phase difference between the inverter and the bypass AC source (M2) is outside tolerances. Transfer of the load between the inverter and the bypass AC source (M2) will result in an interruption in the supply of power to the load.

For parallel UPSs, this message should be interpreted as meaning the phase difference between the inverter for which the message is displayed and the other inverters is outside tolerances.

UPS SHUTDOWN

BY AN EXTERNAL COMMAND

The inverter has received a command to shut down. The command is in the form of a signal from received the remote-indications relay board which has been set for this function.

FREQUENCY CHANGE

BY AN EXTERNAL COMMAND

The inverter has received a command to change its output frequency (50 Hz or 60 Hz). This command is not effective unless the inverter has first been shut down. The frequency is changed when the inverter is started again.

MAINS 2 INPUT SWITCH Q4S IS OPEN

The bypass AC source (M2) input switch Q4S is open, i.e. backup power for the load via the bypass AC source (M2) is not available.

INVERTER OUTPUT SWITCH Q5N IS OPEN

Inverter output switch Q5N is open, i.e. the load cannot be supplied via the inverter.

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Contents MGE Galaxy PW 51028230XT/BG Contents Page General characteristics of MGE Galaxy PW UPSs IntroductionSystem description Schematic diagram of the MGE Galaxy PW systemSystem may also include Isolation and protection devices Frequency converter with battery backup powerDifferent types of MGE Galaxy PW systems External bypass for parallel UPSs and the hot-swap optionMode Battery timeOperation in on-line Operation with the normalOperation with the normal AC source restored Battery charge cycleOperation with the bypass AC source outside tolerances Operation in ECO modeOperation with bypass AC source restored Forced transfer and return transferParallel UPSs with redundancy Single-UPS unit on-line or ECO modeInverter shutdown or overload Parallel UPSs without redundancySteady state voltage regulation Example of an installation with an engine generator setOutput voltage quality and continuity Transient voltage regulation80 100 120 kVA Description of MGE Galaxy PW cubiclesUPS cubicle 20 30 40 50 60 kVA 160 200 kVAControl panel Battery cubicleGeneral Presentation Buzzer reset key Battery keyAlarm reset key Anomaly indicator lightParallel UPS unit for increased output Start-upSystem start-up Single-converter unit or redundant parallel converter unitStart-up of a rectifier/ charger Start-up of a moduleStart-up of an inverter Shutdown of the inverter UPS in ECO modeShutdown Shutdown of a rectifier/ chargerControl-panel display Display of alarmsGeneral organisation Load Protected ON-LINE Mode List of primary messagesList of secondary messages Load on MainsBattery Charging BAT. = XXX a U BAT. = XXX Voltage measurements Measurement systemCurrent measurements Selections and settings Battery measurementsSet date and time Inverse video Battery testPast events Test Interrupted Check Presence of the Battery Check Alarms Alarms Maintenance bypassSignal transmission Signal receptionEnvironment information Logging and time-stamping General instructions for using most screensSetting the date and time for the UPS Utilisation via the MGE Galaxy PW displayConsulting statistics ExampleMin nb of backups 3 min this Elapsed backup time min this isNb of backups 1 min this is Total time with Tbatt 25 C hUtilisation via Teleservice Single-UPS unit or UPS in ECO mode MaintenanceMaintenance configuration UPS isolationRedundant, parallel UPS Start-upParallel UPS for increased output Isolate all UPSsFunctional check Battery maintenanceVisual check Vented lead-acid batteriesTraining center Safety of life and property Harmonics filter and power factor improvementOptions Empty cubicles Electrical supervision
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