Specifications

ROCPOWER
–
MAGNUSandROCFORCE‐ ParallelSystemInstallationGuide 5
EnsurethattheUPSisproperlygroundedbecauseslightleakagecurrentsareproducedbythe
EMIfilter.

TheparallelfunctionoftheUPScanonlybeenabledinNormalMode.

Beforeparallelinstallation,measuretheoutputvoltageofeachUPS.Thetoleranceshouldbe
lessthan0.5VAC;otherwiseconsultyour
dealerbeforeinstallation.

EnsurethattheRJ45cableistightlyconnected.Apoorconnectionmaycausedamagetoboth
theUPSandtheoutputdevice.

Onlytwoterminalresistorsontherearpanelof two(2)orfour(4)oftheUPS’sinparallelshall
besetinthe“ON”
positionandtherestofthemshallbesetinthe“OFF”position;otherwise,
theparalleloperationofthoseUPSmightbeabnormalordamaged.

EnsurethatthewhentheUPSissetupforparalleloperation,theUPSunitshavethesame
ratingsandareofthesametype.
Forinstance,aUPSwithoutgalvanictransformer cannotbe
usedinparallelwithaUPSwithgalvanictransformer.

WhileinstallingtheUPS’s,pleaseadda40Arms/250VACand30Arms/250VACNFB(Non‐fuse
Breaker)attheinputandoutputofeachUPStoavoidanypotentialhazardwhentheUPSisin
MaintenanceMode.





















