Fisher & Paykel 517735 Motor Controller Module, Water Level Measurement Pressure Sensor

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4.3Motor Controller Module

This module contains the circuitry needed to control the water valves, pump and the motor. It also recieves signals from the rotor position sensor, pressure sensor and the display module.

The Motor Controller Module and Display Module are continuously communicating. The Motor Controller Module supplies the Display Module with 15v (11v min 17v max). The two Modules are connected together with a 3 way harness, (Phase 1-4), or a 4 way harness, (phase 5).

The electronics in the Motor Controller Module, (Phase 1-4 only) are cooled by water, Phase 5 is air cooled. The inlet chamber is a separate part to the Motor Controller Module. The inlet chamber serves two purposes: -

•Phase 1 to 4. Water cooled. During filling, water is flowing through the chamber continuously and cooling the electronics. During spin cycles, if the electronics becomes too hot, the cold valve will purge. A small quantity of water may be discharged into the bowl during the cycle.

•Mixing the incoming hot and cold water is part of the automatic wash water temperature system. A thermistor measures water temperature and enables the water temperature to be controlled.

The Motor Controller Module contains an EEPROM which stores information on Smartdrive operation such as faults and diagnostic information. Information on the last fault is retained in the memory. This memory is also used to store Favourite Cycle data, Optional Adjustments Mode data (see later) as well as special data stored during manufacture. All this memory will be retained when Smartdrive is powered off.

•If Motor Controller has No Power. See Section 6.1.

•Phase 1. Original Motor Controllers have a replaceable fuse. 6A 32mm slow blow. For diagnostics see WM51 in Appendix B.

•Phase 1 (spare) these are essentially Phase 4 functionality. See WM011 in Appendix B.

•Phase 1, 425775. These modules stirred at 30 RPM because Smartdrive was noisy. Replace suspension rods is a better solution. 425775 is now obselete.

•Phase 2-4 check that a blade divider (p.n. 425842) exists within the heatsink.

•Phase 4-5. When replacing Motor Controllers ensure that size setting mode is entered to set size.

•Phase 1-3. When replacing Motor Controllers enter option adjustment mode to set size.

•The colour of the Motor Controller identifies the phase and must match that of the display. Blue (or white) is Phase 1, Blue is Phase 2. Green is Phase 3. Yellow is Phase 4 and grey is Phase 5.

•Pressure pipe must only be reconnected when the bowl is empty of water, otherwise the bowl will flood. Blow down pipe to release any water droplets before reconnecting.

•Smartdrive is not isolated. Even 15v will be live.

•Phase 1-4 use water cooling. Dry out topdeck area before refitting.

•Phase 5 has a standby mode. The 15v will power off at the end of the cycle or after 15 minutes without use. The power button must be used to wake up Smartdrive.

•Phase 5 uses the pump as part of the power supply. If the pump blocks Smartdrive could power off!

Water Level Measurement - Pressure Sensor

Smartdrive is fitted with a pressure sensor which can fill to any water level. The pressure sensor is incorporated within the Motor Controller and cannot be removed. The pressure pipe connects from the Motor controller to the air bell at the bottom of the outer bowl. It is part of the harness assembly. On Phase 1 the pressure sensor is on the Display Module.

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Contents Smart Drive Electronic Washing Machine Phase 1 to 5Phase 5 Iweco Phase 3 GWPhase 4 GW Phase 5 IWMW, GW What PHASE, Size & Model is Your SMARTDRIVE?Table of Contents Recycle HOW to Service Smartdrive If Smartdrive has no Power see SectionIntroduction Smartdrive Servicing Quick Reference Guide ALL Terminals and Internal Parts should be Treated AS Live SpecificationsInlet Hoses InstallationInstallation Removing Transit RestraintLevelling Smartdrive Installation Environment Water Supply TemperaturesSafety Accessories and Spare PartsSmartdrive Components Electronics Systems Phase Wiring Diagram Motor SpecificationsWater Level Measurement Pressure Sensor Motor Controller ModuleDisplay Module Water Valves Rotor Position Sensor InstallationPump Pump Motor SpecificationsInner and Outer Bowls Diagram showing the Floating BowlDetection Of Inner Bowl Float Off Point Bowl Check Lid Switch Lid Switch and Out of Balance SwitchWater Temperature Sensing Favourite cycle GW only All Phases Customising Wash Cycles GW only Phase 3 to 5 onlySmartdrive Information Delay Start GW only Phase 2 to 5 only Auto Water Level GW only Phase 3 to 5 onlyWater Saver GW only Phase 3 to 5 only Amount of Water Used in the Water Saver Rinse Fabric Softener Dispenser All PhasesCreasing Wash Performance Information All PhasesSmartdrive Problems If Smartdrive Appears To Have No PowerIf Smartdrive Powers Off mid cycle Flooding LeakingNoisy Poor Wash Performance Continuous Spinning or Slow SpinningIt Appears Smartdrive is doing nothing SiphoningRadio Frequency Interference RFI Earth LeakageWash Water Temperature All Phases Option Adjustment ModeMethod of Setting the Wash Temperature Rinse Options All PhasesPhase End of Cycle Warning Beeps GW Only All PhasesOut Of Balance Recovery Adjustment GW and MW only Phase Auto Water Fill Level Adjustment GW only PhaseWhat WAS the Last FAULT? Diagnostic ModeTo Test Pump & Water Valves Test LID, OUT of BALANCE, & Size SwitchesMedium Water Level LED on = RE-CYCLE on RestartRecycle LOW Water Level LED OFF = Restart OFFPage Size Setting Mode Phase 4 and 5 only User Warnings Insufficient Hot Water Hot Water LED flashingInsufficient Cold Water Cold Water LED flashing Overloaded Product High Water LED flashing No Water Both Hot and Cold Water LEDs flashingPhase 4 Phase 1 toRestart and Recycle Wash Progress LEDs flashing Demonstration Mode All LEDs flashing in patterns IWM09 IWL09 Fault CodesGWC08 GWM08 GWL08 THC08 THM08 THL08 GWC09 GWM09 GWL09Primary Source Motor Controller Smartdrive Phases 1 to 5 Fault DescriptionsPhase 1 to 5 Motor Controller Fault Phase 1 Communications FaultPrimary Source Display Module Phase 1 to 5 Display Module FaultPhase 1 to 5 Size Error Primary Source Display Module ActionPhase 2 to Phase 4 toPhase 1 to 5 Thermistor Error Action PhasePrimary Source Pressure Tube Phase 1 to 5 Pressure Sensor FaultPhase 1 to 5 Flood Protection Error Phase 1 Pump FaultPrimary Source Pump Action Phase 1 Pump Connection FaultPhase 5 IW LCD Initialisation Error 28 30 xx Phase 1 Display / Motor Controller out of SequencePhase 1 Pump Circuit Error Phase 1 Brake Resistor FaultPhase 1 MC Reset Error Secondary Source Mechanical Action Phase 1 to 5 Water Leak FaultPhase 1 to 5 Pump Block Error Primary Source Pump SystemPrimary Source Suds Phase 1 to 5 Tap or Pressure Sensor Tube FaultPhase 1 to 5 Bowl Dis-Engaged Fault Primary Source MechanicalPrimary Source Mechanical Action Phase 1 to 5 Temperature Sensor FaultPhase 1 Rotor Fault Primary Source Phase 1 to 5 OOB Switch FaultSecondary Source Motor Controller Phase 2 to 5 Water in Bowl During SpinPhase 5 Display Fault Primary Source Pump System ActionPhase 2 to 5 Cold Valve Fault Phase 2 to 3 Bowl Dis-engaged FaultPhase 2 to 5 Hot and Cold Valve Fault Primary Source WiringSecondary Source Diverter Valve Phase 2 to 5 Hot Valve FaultPhase 5 ECO Recirculation Fault Phase 5 ECO Recirculation Fault See fault codePhase 2 to 5 Rotor Position Sensor Fault Phase 2 to 5 Motor / Motor Control Step FailSecondary Source Motor Phase 4 to 5 Motor Controller Fault Phase 4 to 5 Bowl Check FaultPrimary Source- Pump Phase 4 Motor Controller FaultPhase 5 Machine Setup Error Phase 2 to 3 Display / Motor Controller Comms. ErrorPrimary Source Wiring Action Phase 1 to 5 Single Rotor Position Sensor ErrorPhase 4 Single Current Trip & Rotor Position Sensor Error Phase 1 to 5 Repetitive Rotor Position Sensor ErrorPhase 1 to 4 Single Current Trip Phase 1 to 4 Repetitive Current TripPhase 1 to 5 Motor Stall Phase 1 to 5 Bowl Engaged During Agitate Phase 4 to 5 Brake Function Time-out Fault Mechanical Service Section Complete DisassemblyPhase 5 Topdeck Showing Wiring Connections NB DON’T Remove the Earth Connection from the Wrapper Phase 2 Topdeck Showing Wiring ConnectionsPage Page Assembly Guidelines Assembly Motor Assembly & DisassemblyPump Blockage Shaft & Bearing Removal Shaft & Bearing Assembly Page Wash Progress LEDs Appendix a Binary Decoding Chart 8 BitsSize Setting Fault Finding / Fault CodesImportant Note WM013 Pump Hood KIT January 2000 Phases 2 to Wiring ConnectionsPump Hood Kit Part Number 479188P WM51 Diagnostic Flow Chart Sept 1992- Phase 1 only WM65 BIB Deflector April 1994- Phase 1 only WM70 Premature OUT of Balance February 1995 Phase 2 onlyKit Lever Out of Balance & Bracket Phase 2 Part Number WM81 Pump Shield 5KG Smartdrive September 1996 Phases 1 to WM80 Condensation KIT May 1996 Phase 2 & 3 onlyAppendix C Smarttool Appendix D Tools for Servicing Smartdrive Compact Medium Large Specifications for IWIW Quick Reference Guide Models Size Width Wash Load CapacityWash 1 Detergent Activating Wash Front loader type wash Introduction to IWWater Temperature Sensing Pump Option Adjustment Mode for IWOther Options Status Display Diagnostic Mode for IWFault Status Recycle Size Setting Mode for IW
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