American Dryer Corp MLS-460 manual

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3)Malfunctioning operator interface terminal or communications cable.

4)Malfunctioning 24 volt DC power supply.

5)Malfunctioning hi-limit temperature controller. b. POSSIBLE SOLUTIONS;

1)Verify that fuses 7, 8, 9, and 10 are good.

Check that ALL fuse holder L.E.D. (light emitting diode) indicators are not lit.

If ALL fuses are good, go to paragraph #2 below, paragraph #3 below, paragraph #4 below, or paragraph #5 below.

If a fuse is bad, check the corresponding circuit, replace the fuse and test.

2)Malfunctioning PLC (Programmable Logic Controller).

If PLC power is off, a “LINE FAULT MESSAGE” will be displayed on the operator interface terminal.

NOTE: Call the ADC Service Department at (508) 678-9000.

3)Malfunctioning operator interface terminal.

Check power supply voltage to the operator interface terminal. It should be 24 volts DC.

Check that the interface cable to both the PLC and the operator interface terminal are secure.

NOTE: Call the ADC Service Department at (508) 678-9000.

4)Malfunctioning 24 volt DC power supply.

Verify that the power supply’s “red” “ON” light is illuminated.

Verify that 110 volt AC supply is available and correct.

Verify that the 4-40 mA (4-40 milliampere) transmitters or operator interface terminal are not causing the power supply to fail.

If the previous checked items are “OK,” replace the power supply.

5)Malfunctioning hi-limit temperature controllers (HLS1 or HLS2).

HLS1 - exhaust temperature hi-limit.

HLS2 - intake temperature hi-limit.

HLS1 and HLS2 are monitored by a six (6) channel hi-limit temperature controller that once triggered must be manually reset.

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Contents MLS-460 Installation/Operator’s Manual Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Power Malfunctions ServiceMotors Important Information SectionExplosion could Result Safety PrecautionsPage Specifications SPECIFICATIONS/DIMENSIONSDimensions Reassembly of Dryer Installation ProceduresReattach The Control Pendant Arm Reassembly Instructions For Dryers Shipped In Three 3 Pieces Page Location Requirements Air Front Tilt Piston and Sprinkler Lines Internal AIR, ELECTRICAL, and Water ConnectionsPage Electric Tumbler Basket Motors Temperature Probe, Base, and Tumbler Basket DisconnectsPage Pendant Left Drum Motor Tumbler Basket Junction Box DisconnectExternal Supply Connections Condensate return line must be 1-1/4 pipe Exhaust Ducting Page Electrical Requirements Electrical RequirementsLatest Edition MLS-460 Steam Electrical Service SpecificationsPage Fresh AIR Supply Requirements Steam Requirements Steam InformationShut Down Instructions Preparation for Operation PRE START-UPClean any lint accumulation from inside the heat console Routine MaintenanceCleaning Suggested Cleaning ScheduleMonthly Tumbler Basket Support and Drive System Component System DescriptionsPage Page Main AIR Blower and Heat Reclaimer System Heat Reclaimer Adjustment Remove Electricity from the Unit Compressed AIR System Page Safety Devices Door Open Service SERVICE/PARTS InformationParts Returning Warranty Parts Warranty InformationReturning Warranty Cards WarrantyPage Troubleshooting Table of Contents Number TroubleshootingVerify red Sprinkler Power on main panel to be illuminated Power MalfunctionsMain Disconnect Will Not Turn On If NO, refer to paragraph #1 above Sprinkler circuit may be defective Machine Main Power Shuts Down Blue Indicator OffSprinkler Circuit Components 3CR CRB Not UsedSprinkler Circuit Description Page Malfunctioning PLC Programmable Logic Controller Emergency Stop E-Stop Buttons 1, 2,Page General Description PLC Message HI-TEMP FaultPage Page Introduction Tumbler Basket Section Electrical MalfunctionsDrum Rotation Sensor PRS1 Rear Panel Control Problems Emergency Stop E-Stop Function If YES, refer to a If NO, refer to b PLC OUT PIN 1 = Drum Reverse PLC OUT PIN 2 = Drum Forward PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UP DS1-B=LOAD Door Switch DS2-B=UNLOAD Door Switch Wiring Back the PLC Programmable Logic ControllerProbable Solutions Base Section Electrical Malfunctions Wiring Back to the PLC Programmable Logic Controller Lint Drawer Proximity SwitchesPage Probable Causes Tumbler Reverse Pendant --- PB2 Pendant Control MalfunctionsLoad Level Unload Tumbler Reverse Tumbler Forward SEL a = Load SEL B = UnloadTumbler Forward Pendant --- PB1 Wiring Diagram Fuse 4 on Main Electrical Panel Faulty SwitchesWiring Back to PLC Programmable Logic Controller MLS-460 Pendant Assembly DiagramDisconnect Plug Faulty Switch Wiring Back to TB1 Temperature SensingAnother Emergency Stop E-Stop Button Exhaust RTD Resistive Temperature Device Sens1 Temperature Sensing Component DescriptionsWith the control voltage OFF Motors Circuit Wiring to the Analog Input ModuleVerify current setting Check circuit Check motor Retest LS-460 Idling LS-460 Running ADC113073 1- 01/14/00-15