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7. OPERATION OF THE SYSTEM 7. OPERATION OF THE SYSTEM
Commissioning
TocorrectlycommissiontheMCBOXthesequenceofoperationsindicatedbelowmustbe
followedandtheMCcontrolsystemfunctionsmustbeknown.
Electrical power supply
Oncethepowerconnectionshavebeenmade,theMCBOXcanbeenergisedbymeansofthe
masterswitchtobettedbytheinstallerontheupstreamline.SwitchingonoftheMCsystemwill
beindicatedbythelightingupofthetwobacklitLCDsttedonthefront.
NOTE:
Intheeventofcontinuouscurrentpowersupply(DC),afusesizethatisappropriatetotheDC
motor’sabsorptionlevelshouldbeintroducedtothemotorpowerline.
Forexample:
•Iftheconnectedmotorisonethatabsorbs10Amaxthena
12Adelayfuseshouldbeinserted.
•If,however,themotorabsorbs50Amax,thena60Adelay
fuseshouldbeinserted.
•Ifthefuseissmall,itcanbettedalongthecableinsidethe
junctionbox,inposition(1)(seeillustration)
•If,however,thefuseisverybig(e.g.60A)andcannot
physicallytinsidethebox,thenitcanbeinsertedalongthe
motor’spowersupplycableinposition(2)(seeillustration)
Station conguration
EveryMCBOXstationcanbeadaptedtothespecicrequirementsofthestationmanager.Todo
thistheMCcontrolsystemmustbeCONFIGURED.
WARNING
MCcongurationiscrucialandmustbedonebyskilledpersonnel.
Toperformthisoperation,theMCmanualmustbecarefullyandthoroughlyread.
Aftercompletingconguration,userPINCODEScanbeassignedtothepersonschargedwith
usingMCBOX,inaccordancewiththedetailedinformationintheMCmanual.