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11-3
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11-3. AG PCB
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12-1
POWER SUPPLY PART
DRIVING PART
SENSING PART
COMMUNICATION PARTDD MOTOR CONTROL CIRCUIT
12. CIRCUIT DESCRIPTIONS12-1. OVERALL SYSTEM
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12-2
▶ Function - GeneratesconstantDCvoltagesof15Vand5V,etc.necessarytocontrolthecircuitsbytransforminghighACinput voltages. - Thecircuitofthispartisconstructedusingaswitchingtransformer.
▶ Description - GeneratesDCvoltagesbytransformingACinputsthroughadiode(bridge). - Theswitchingtransformerimplementsvoltagesof15Vand8V. - Aconstant5VisoutputattheIC1outputterminal.
12-2. POWER SUPPLY PART
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12-3
▶ FunctionControlstheelectricalharnesspartsoftheset.
▶ Description - MICOMsendsahighsignaltotheportofatargetharnesstooperate. - IfahighsignalentersasIC7andIC8input,theoutputterminaldecreases. - Atthistime,arelayoperatestosupplypowertothetargetharness.
12-3. DRIVING PART
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12-4
▶ Function - Detectstemperaturesofeachpartthroughtheoutputofathermistor. - Detectsthevolumeofwaterbymeasuringthefrequencyofthewaterlevelsensor. - Detectsthedoorlockstate.
▶ Description - DeterminesthecurrentvolumeofwaterbydetectingtheIC3’soutputs(MICOMPin6). - Controlsthewatertemperaturetobesuppliedthroughthethermistor’soutputs. - Determinesthedoorlockstatebydetectingtheon/offstateofthedoorswitchcontact.
12--4. SENSING PART
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12-5
▶ Function - CommunicationscircuitforcontrollingthedisplayoftheSUBPCB. - ControlcircuitfortheencoderandswitchoftheSUBPCB.
▶ Description - Input/OutputportsoftheMICOMforcontrollingtheLED,display,andswitchoftheSUBPBA.
12-5. COMMUNICATION PART
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12-6
▶ Function - InvertercontrolofDDmotor - DetectmotorrpmusingHall_ICintheDD_MOTOR - DetectDC_LINKvoltage - Detectcondition(suchasexcesscurrent)ofmotorcontrolpart
▶ Description - PWMoutputwillbeavailableatPINno.10~15withreferencetoactivehighwhenusingINVERTERcontrolof DD_MOTOR - IPMwillgiveLosignalto16PINontheMICOMthroughF0forabnormalcasessuchasover16Aisgeneratedinthe IPMorupperphasecurrentiscontrolledlessthan10.5V. - DependingontheON/OFFconditionofHALAL_ICinsidetheDD_MOTOR,High/LowsignalwillbeputthroughPIN19 and20ontheMICOM,andROTORpositionofDD_MOTORandrpmwillbedetected - 10%ofDC_LINKvoltagewillbeputintoPIN28,andwilldetectA/DfunctionDC_LINKvoltageinsidetheMICOM
12-6. DD MOTOR CONTROL CIRCUIT
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13. REFERENCE INFORMATION13-1. MODEL NAME
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