Fisher & Paykel 517735 service manual Rotor Position Sensor, Installation

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4.6Rotor Position Sensor

One of the inputs that the Motor Controller Module needs in order to determine which switches to turn on, is the position of the Rotor. This information is supplied by the Rotor Position Sensor (RPS).

On the RPS there are three Hall Sensors. These detect the magnetic field of the individual magnets in the Rotor. As the motor turns, the position of a group of magnets is detected. There are 5 wires on the RPS, 2 for power supply and 3 signal wires. Data on the position of the Rotor is supplied to the microprocessor in the Motor Controller Module via the three signal wires.

•A single RPS p.n. 426221P may be used on all phases of Smartdrive.

•The RPS is static sensitive. ESD precautions must be taken when handling this device.

•Do not remove the printed circuit board from the plastic housing.

•Do not use a multi-meter to check the resistance of the sensors. This may result in damage.

•To test the RPS use a RPS tester p.n. 502105 and manually rotate the agitator. This tester requires adapters, see Appendix D. It requires a 9v battery to operate. The tester has 3 LEDs. A pass is when 1 or 2 LEDs are illuminated at a time. 0 or 3 LEDs illuminated indicates a fail. Any flickering of the fail LED will indicate that the RPS or rotor is faulty. A faulty rotor would give a fail at certain points of rotation. This tester does not test all the functionality of the RPS. It tests the 3 outputs but cannot indicate all faults, for example if a capacitor on the RPS is cracked.

•Conformal coating has caused contact problems on the edge connector. Pushing the plug on and off a few times should clean the contacts.

Fault codes 53, 130,131,132,133,134,136 are directly associated with the RPS. Test with a RPS tester. Check the strain relief for the harness. If there is any sign of corrosion replace RPS. If there is an indication of a ‘flash over’ from the RPS to the stator there will be a black mark on the RPS. The Motor Controller will have blown up.

Installation

Refer Section 12.3 for advice on motor removal and installation. Unclip the RPS module from the stator and slide it out.

When refitting, line up the arrows on the RPS and Stator. Slide the RPS into the Stator poles until the clip locks into the notch on the other side of the Stator.

Refit RPS harness into strain relieving labyrinth. NB. Early Smartdrive models did not have this strain relief. If this is the case, secure harness carefully using a cable tie or replace RPS.

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Contents Phase 1 to 5 Smart Drive Electronic Washing MachinePhase 5 IW Phase 3 GWPhase 4 GW Phase 5 IwecoWhat PHASE, Size & Model is Your SMARTDRIVE? MW, GWTable of Contents Recycle HOW to Service Smartdrive If Smartdrive has no Power see SectionIntroduction Smartdrive Servicing Quick Reference Guide Specifications ALL Terminals and Internal Parts should be Treated AS LiveRemoving Transit Restraint InstallationInstallation Inlet HosesAccessories and Spare Parts Installation Environment Water Supply TemperaturesSafety Levelling SmartdriveSmartdrive Components Electronics Systems Phase Wiring Diagram Specifications MotorMotor Controller Module Water Level Measurement Pressure SensorDisplay Module Water Valves Installation Rotor Position SensorPump Motor Specifications PumpDiagram showing the Floating Bowl Inner and Outer BowlsDetection Of Inner Bowl Float Off Point Bowl Check Lid Switch and Out of Balance Switch Lid 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 Fabric Softener Dispenser All Phases Amount of Water Used in the Water Saver RinseWash Performance Information All Phases CreasingSmartdrive Problems If Smartdrive Appears To Have No PowerIf Smartdrive Powers Off mid cycle Flooding LeakingNoisy Continuous Spinning or Slow Spinning Poor Wash PerformanceEarth Leakage SiphoningRadio Frequency Interference RFI It Appears Smartdrive is doing nothingOption Adjustment Mode Wash Water Temperature All PhasesRinse Options All Phases Method of Setting the Wash TemperatureEnd of Cycle Warning Beeps GW Only All Phases PhaseAuto Water Fill Level Adjustment GW only Phase Out Of Balance Recovery Adjustment GW and MW only PhaseDiagnostic Mode What WAS the Last FAULT?Test LID, OUT of BALANCE, & Size Switches To Test Pump & Water ValvesLOW Water Level LED OFF = Restart OFF RestartRecycle Medium Water Level LED on = RE-CYCLE onPage Size Setting Mode Phase 4 and 5 only User Warnings Insufficient Hot Water Hot Water LED flashingInsufficient Cold Water Cold Water LED flashing No Water Both Hot and Cold Water LEDs flashing Overloaded Product High Water LED flashingPhase 4 Phase 1 toRestart and Recycle Wash Progress LEDs flashing Demonstration Mode All LEDs flashing in patterns GWC09 GWM09 GWL09 Fault CodesGWC08 GWM08 GWL08 THC08 THM08 THL08 IWM09 IWL09Phase 1 Communications Fault Smartdrive Phases 1 to 5 Fault DescriptionsPhase 1 to 5 Motor Controller Fault Primary Source Motor ControllerPrimary Source Display Module Action Phase 1 to 5 Display Module FaultPhase 1 to 5 Size Error Primary Source Display ModuleAction Phase Phase 4 toPhase 1 to 5 Thermistor Error Phase 2 toPhase 1 Pump Fault Phase 1 to 5 Pressure Sensor FaultPhase 1 to 5 Flood Protection Error Primary Source Pressure Tube28 30 xx Phase 1 Display / Motor Controller out of Sequence Phase 1 Pump Connection FaultPhase 5 IW LCD Initialisation Error Primary Source Pump ActionPhase 1 Pump Circuit Error Phase 1 Brake Resistor FaultPhase 1 MC Reset Error Primary Source Pump System Phase 1 to 5 Water Leak FaultPhase 1 to 5 Pump Block Error Secondary Source Mechanical ActionPrimary Source Mechanical Phase 1 to 5 Tap or Pressure Sensor Tube FaultPhase 1 to 5 Bowl Dis-Engaged Fault Primary Source SudsPhase 1 to 5 OOB Switch Fault Phase 1 to 5 Temperature Sensor FaultPhase 1 Rotor Fault Primary Source Primary Source Mechanical ActionPrimary Source Pump System Action Phase 2 to 5 Water in Bowl During SpinPhase 5 Display Fault Secondary Source Motor ControllerPrimary Source Wiring Phase 2 to 3 Bowl Dis-engaged FaultPhase 2 to 5 Hot and Cold Valve Fault Phase 2 to 5 Cold Valve FaultPhase 5 ECO Recirculation Fault See fault code Phase 2 to 5 Hot Valve FaultPhase 5 ECO Recirculation Fault Secondary Source Diverter ValvePhase 2 to 5 Rotor Position Sensor Fault Phase 2 to 5 Motor / Motor Control Step FailSecondary Source Motor Phase 4 to 5 Bowl Check Fault Phase 4 to 5 Motor Controller FaultPhase 4 Motor Controller Fault Primary Source- PumpPhase 2 to 3 Display / Motor Controller Comms. Error Phase 5 Machine Setup ErrorPhase 1 to 5 Single Rotor Position Sensor Error Primary Source Wiring ActionPhase 1 to 4 Repetitive Current Trip Phase 1 to 5 Repetitive Rotor Position Sensor ErrorPhase 1 to 4 Single Current Trip Phase 4 Single Current Trip & Rotor Position Sensor ErrorPhase 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 Phase 2 Topdeck Showing Wiring Connections NB DON’T Remove the Earth Connection from the WrapperPage Page Assembly Guidelines Motor Assembly & Disassembly AssemblyPump Blockage Shaft & Bearing Removal Shaft & Bearing Assembly Page Appendix a Binary Decoding Chart 8 Bits Wash Progress LEDsSize 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 WM80 Condensation KIT May 1996 Phase 2 & 3 only WM81 Pump Shield 5KG Smartdrive September 1996 Phases 1 toAppendix C Smarttool Appendix D Tools for Servicing Smartdrive Models Size Width Wash Load Capacity Specifications for IWIW Quick Reference Guide Compact Medium LargeIntroduction to IW Wash 1 Detergent Activating Wash Front loader type washWater Temperature Sensing Option Adjustment Mode for IW PumpOther Options Diagnostic Mode for IW Status DisplayFault Status Size Setting Mode for IW Recycle
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