Simrad PI GEOMETRY - QUICK REFERENCE GUIDE REV B Manuale di Installazione Pagina 199

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On-boardmaintenance
FusesintheMotorControlUnit
TheHullUnitisfusedwithtwotypesoffuseslocatedinthe
MotorControlUnit.
Figure52LocationofS301,F301and+24Vdcpowersupply
HOIST STOP
REMOTE LOWER
(CD015409-027)
S301
+24V
F301
MotorProtectingSwitchS301
Topreventthehoistingmotorfromoverload,the3-phase
voltageforthemotorisfusedwiththecurrentadjustableMotor
ProtectingSwitchS301.ThisswitchislocatedinsidetheMotor
ControlUnit.
Themotorprotectingswitchwillautomaticallydisablehoisting
andlowering,if:
thevessel’sspeedistoohigh
thetransducershafthasbeenbent
thelubricationreservoirontheHullUnitisempty
Insuchcase,afailurewarningwillbepresentedonthesonar
display.Afterthecauseofthefailurehasbeenxed,the
protectingswitchisresetbypressingtheoperatinghandle
upwardstopositionON.Forservicepurposes,thisoperating
handlecanbepresseddownwardstopositionOFFtoprevent
unexpectedoperationwhileservicingtheHullUnit.
323775/B
197
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