American Dryer Corp MLS-460 manual

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3.Electrical Service

The electrical power is connected to the dryer at the high voltage section of the control cabinet. On the MLS-460 dryer, this section is located at the bottom left of the main electrical enclosure.

The MLS-460 dryer, with sprinkler option, must be supplied with two (2) independent input power lines. One is 3-phase (3ø) electric service that feeds the dryer itself, and the other is single-phase (1ø) electric service that feeds the safety sprinkler system. Both input lines must be independent of each other and individually protected by their own individual fused disconnect.

IMPORTANT: THE MLS-460 WITH SPRINKLER OPTION WILL NOT OPERATE WITHOUTAN INDEPENDENT POWER SOURCE FED TO THE SAFETY SPRINKLER SYSTEM.

Feed the electrical service cables to the dryer using the pre-punched knockouts at the bottom section of the electrical cabinet right wall.

Connect the ground wires directly to the ground lug located at the same approximate area.

Before turning power on to the dryer, measure the supply voltage to ensure that it matches the dryer’s specified input voltage. This input voltage is marked on the aluminum data plate located on the inner right wall of the electrical cabinet.

IMPORTANT: For proper sprinkler and dryer operation, sprinkler must be powered by a “separate or dedicated” single-phase (1ø) multi-wire branch circuit at dryer’s nameplate voltage.

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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 Section Important InformationSafety Precautions Explosion could ResultPage SPECIFICATIONS/DIMENSIONS SpecificationsDimensions Reassembly of Dryer Installation ProceduresReattach The Control Pendant Arm Reassembly Instructions For Dryers Shipped In Three 3 Pieces Page Location Requirements Internal AIR, ELECTRICAL, and Water Connections Air Front Tilt Piston and Sprinkler LinesPage Temperature Probe, Base, and Tumbler Basket Disconnects Electric Tumbler Basket MotorsPage Pendant Tumbler Basket Junction Box Disconnect Left Drum MotorExternal Supply Connections Condensate return line must be 1-1/4 pipe Exhaust Ducting Page Electrical Requirements Electrical RequirementsLatest Edition Electrical Service Specifications MLS-460 SteamPage Fresh AIR Supply Requirements Steam Information Steam RequirementsShut Down Instructions PRE START-UP Preparation for OperationRoutine Maintenance CleaningSuggested Cleaning Schedule Clean any lint accumulation from inside the heat consoleMonthly Component System Descriptions Tumbler Basket Support and Drive SystemPage 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 Warranty Information Returning Warranty CardsWarranty Returning Warranty PartsPage Troubleshooting Troubleshooting Table of Contents NumberVerify red Sprinkler Power on main panel to be illuminated Power MalfunctionsMain Disconnect Will Not Turn On If NO, refer to paragraph #1 above Machine Main Power Shuts Down Blue Indicator Off Sprinkler circuit may be defective3CR CRB Not Used Sprinkler Circuit ComponentsSprinkler Circuit Description Page Emergency Stop E-Stop Buttons 1, 2, Malfunctioning PLC Programmable Logic ControllerPage PLC Message HI-TEMP Fault General DescriptionPage Page Tumbler Basket Section Electrical Malfunctions IntroductionDrum 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 Wiring Back the PLC Programmable Logic Controller DS1-B=LOAD Door Switch DS2-B=UNLOAD Door SwitchProbable Solutions Base Section Electrical Malfunctions Lint Drawer Proximity Switches Wiring Back to the PLC Programmable Logic ControllerPage Probable Causes Pendant Control Malfunctions Load Level Unload Tumbler Reverse Tumbler ForwardSEL a = Load SEL B = Unload Tumbler Reverse Pendant --- PB2Tumbler Forward Pendant --- PB1 Fuse 4 on Main Electrical Panel Faulty Switches Wiring Back to PLC Programmable Logic ControllerMLS-460 Pendant Assembly Diagram Wiring DiagramDisconnect Plug Faulty Switch Wiring Back to TB1 Temperature SensingAnother Emergency Stop E-Stop Button Temperature Sensing Component Descriptions Exhaust RTD Resistive Temperature Device Sens1With the control voltage OFF Circuit Wiring to the Analog Input Module MotorsVerify current setting Check circuit Check motor Retest LS-460 Idling LS-460 Running ADC113073 1- 01/14/00-15