Simrad SU90 - Motor Control Unit Familiarization and Main Parts Identification

SimradSU90
MotorControlUnitfamiliarizationandmain
partsidentication
HOIST STOP
REMOTE LOWER
(CD015409-021)
E301
S301
S302
P302
S303
K303
L1
L2
K302
K301
F301
E
AInternal24Vdcpowersupply
BEthernetconnector
CHandcrank
DMainslter
EHullUnitControllercircuit
board
F301Fuseforinternalpower
supply
E301TerminalstripforAC
mainsinput
K301Hoistingcontactor
K302Loweringcontactor
K303Phasewatchrelay
L1Yellowindicatorlight
L2Greenindicatorlight
S301Motorprotectingswitch
S302Hoist/lowerswitch
S303Handcrankwithsafety
switch
P302Connectorforhullunitlimitswitchesandrotationsensor
Duringnormaloperationalconditions,thefollowingtwoindicatorlampsshallbelit:
•L1indicatesthatthephasewatchrelayK303isactivated.Thismeanthatthe3-phase
voltageisappliedtothehoist/lowersystem,andthatthethreephasesarecorrectly
connectedwithregardtothetrainingdirectionofthehoistingmotor.
•L2indicatesthattheinternal+24Vdcpowersupplyforthecontrolelectronicis
operational.
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381293/A