APC 20 - 200 KVA Shutdown of the inverter, Shutdown of a rectifier/ charger, UPS in ECO mode

Page 19

Shutdown

Shutdown of the inverter

◗press the "inverter OFF" button 9 on the control panel for three seconds (see figure 19).

Single-UPS unit

◗the green "inverter" light 4 on the control panel goes off;

◗the green "static-bypass" light 3 goes on;

◗the inverter stops;

◗if bypass AC source (Mains 2) transfer conditions are satisfied, the inverter shuts down and the load is transferred to the bypass AC source;

◗if bypass AC source (Mains 2) transfer conditions are not satisfied, the inverter does not shut down. The message "MAINS 2 OUTSIDE TOLERANCES, TRANSFER DISABLED" is displayed.

UPS in "ECO" mode

◗the green "inverter" light 4 on the control panel goes off;

◗if the load was on the static bypass, nothing is changed;

◗if the load was on the inverter:

◗the green "static-bypass" light 3 goes on,

◗if bypass AC source (Mains 2) transfer conditions are satisfied, the inverter shuts down and the load is transferred to the bypass AC source,

◗if bypass AC source (Mains 2) transfer conditions are not satisfied, the inverter does not shut down. The message " MAINS 2 OUTSIDE TOLERANCES, TRANSFER DISABLED" is displayed.

Single-converter unit

◗the green lights 4 and 5 on the control panel go off;

◗the inverter stops.

Parallel UPS unit

◗if the system is redundant, i.e. the other parallel-connected inverters can supply the load on their own, the inverter shuts down and the green "inverter" light 4 goes off.

The load is not affected in that the other inverters continue to supply it normally;

◗if the system is not redundant, the other inverters go to overload status. If overload conditions are overrun, the load is transferred to the bypass AC source:

◗the green lights 3 turn green,

◗the green "inverter" light 4 goes off.

Parallel-converter unit

◗the redundant system means that the other parallel inverters can supply the load unassisted. The inverter shuts down and the green "inverter" light 4 goes off. The load is not affected in that the other inverters continue to supply it normally;

Shutdown of a rectifier/ charger

Except in frequency converters without a battery, it is recommended not to stop the rectifier/charger because the battery will no longer be charged. Except in the case of a test of the inverter on battery power, the rectifier/ charger should be shutdown after the inverter to avoid unnecessary battery discharge.

Proceed in the following order:

◗open battery circuit breaker QF1;

◗open normal AC input switch Q1:

◗the rectifier/charger shuts down,

◗the green "rectifier/charger" light 1 goes off.

Note:

In a frequency converter without a battery, rectifier/charger shutdown automatically results in inverter shutdown.

E-51028230XT/BG - 19

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Contents MGE Galaxy PW 51028230XT/BG Contents Page Introduction General characteristics of MGE Galaxy PW UPSsSystem description Schematic diagram of the MGE Galaxy PW systemSystem may also include External bypass for parallel UPSs and the hot-swap option Frequency converter with battery backup powerDifferent types of MGE Galaxy PW systems Isolation and protection devicesOperation with the normal Battery timeOperation in on-line ModeBattery charge cycle Operation with the normal AC source restoredForced transfer and return transfer Operation in ECO modeOperation with bypass AC source restored Operation with the bypass AC source outside tolerancesParallel UPSs without redundancy Single-UPS unit on-line or ECO modeInverter shutdown or overload Parallel UPSs with redundancyTransient voltage regulation Example of an installation with an engine generator setOutput voltage quality and continuity Steady state voltage regulation20 30 40 50 60 kVA 160 200 kVA Description of MGE Galaxy PW cubiclesUPS cubicle 80 100 120 kVAControl panel Battery cubicleGeneral Presentation Anomaly indicator light Battery keyAlarm reset key Buzzer reset keySingle-converter unit or redundant parallel converter unit Start-upSystem start-up Parallel UPS unit for increased outputStart-up of a rectifier/ charger Start-up of a moduleStart-up of an inverter Shutdown of a rectifier/ charger UPS in ECO modeShutdown Shutdown of the inverterControl-panel display Display of alarmsGeneral organisation List of primary messages Load Protected ON-LINE ModeLoad on Mains List of secondary messagesBattery 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 Maintenance bypass AlarmsSignal transmission Signal receptionEnvironment information Utilisation via the MGE Galaxy PW display General instructions for using most screensSetting the date and time for the UPS Logging and time-stampingExample Consulting statisticsTotal time with Tbatt 25 C h Elapsed backup time min this isNb of backups 1 min this is Min nb of backups 3 min thisUtilisation via Teleservice UPS isolation MaintenanceMaintenance configuration Single-UPS unit or UPS in ECO modeStart-up Redundant, parallel UPSIsolate all UPSs Parallel UPS for increased outputVented lead-acid batteries Battery maintenanceVisual check Functional checkTraining center Safety of life and property Harmonics filter and power factor improvementOptions Electrical supervision Empty cubicles
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