Beckhoff CX210009x4 Manuale Utente Scaricare il pdf (Pagina 62)

Commissioning

Powerfailureduringthebootprocess

TheUPSserviceisnotyetactiveatthistime.TheUPSautomaticallyswitchestobatteryoperation,thus

bridgingthepowerfailure.ThePCisbootedupinbatterymode.DuringaprolongedpowerfailuretheUPS

servicetakesovercontrolafterthestartandstartsshuttingdownthesystem.

RestorationofsupplyandrepeatedpowerfailuresduringUPSshutdown

ThefollowingdiagramshowsacaseinwhichtheUPSserviceinitiatesashutdownandthesupplyis

restoredduringtheshutdown.

OncetheUPSservicehasinitiatedtheshutdownthisprocesscannotbestoppedandmustbecompleted.

RepeatedpowerfailuresduringtheshutdownarebridgedbytheUPS.InordertoenabletheIPCtorestart

theexternalpowersupplyisinterruptedbriefly(afewseconds).

CX210009x462 Version1.1

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Beckhoff CX2100­09x4 Manuale Utente Pagina 62