442703/B
181
ACmainspowercable(3-phase)totheMotorControlUnit
Theelectrichoistingmotoronthehullunitrequires3-phaseACpowerforoperation.
Thephysicalconnectionstothemotoraremadeinsidetheterminalboxonthemotor.
Toavoidseriousdamagetothehoistingmotor,andtoensurethatthemotoroperates
properly,youmustverifythattheelectricalconnectionsaremadeinaccordancewith
thesupplied3-phaseACvoltage.
Thehoistingmotorismounted
verticallyatthetopofthegantry.
Theupperpartofthemotoris
ttedtoagearbox.Thisgear
boxisconnectedtothehoisting
spindleusingatimingbelt.The
electricalconnectionstothe
hoistingmotoraremadeinsidethe
terminalbox.The3-phasesupply
voltageforthemotorcanbe230,
380or440V ACat50or60Hz.
WARNING
Highvoltagesareused.This
equipmentmustbeserviced
onlybyqualiedpersonnelfamiliarwithhigh-voltageequipmentandthepotential
hazardsinvolved.Failuretoobservethisprecautioncouldresultinbodilyinjury.
Makesurethatthe3-phaseACpowerisdisconnected,andthatthecircuit
breakersaredisengagedintheship’sfusebox.
Removethecoveronthepowerconnectionsterminalboxonthehoistingmotor.V erify
thattheelectricalconnectionstothehoistingmotoraremadeinaccordancewiththe
supplied3-phaseACvoltage.
Refertotheillustration.
Ifnecessary,changethephysicalconnections.
Relatedtopics
InstallingtheST90cables,page171
Cablelayoutandinterconnections
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