American Dryer Corp MLG-460 manual Motors, Circuit Wiring to the Analog Input Module

Page 97

If the power supply responds to the disconnection, there is a problem with the driven load and not the power supply itself.

Check ALL loads and retest.

Check that the device’s output voltage is 24 volts DC.

If not, adjust it.

3.DEFECTIVE ANALOG INPUT MODULE or CHANNEL Replace Analog Input Module

4.RTD (Resistive Temperature Device) WIRING TO THE “EXHAUST” 4 to 20 MILLIAMPERE (4 to 20 mA) TRANSMITTER

Check ALL wiring and connection from the exhaust RTD (Resistive Temperature Device) probe to the exhaust 4 to 20 milliampere (4 to 20 mA) transmitter. Refer to the EXHAUST Temperature Assembly and Wiring Diagram, Main Panel Wiring Diagram.

5.CIRCUIT WIRING TO THE ANALOG INPUT MODULE

Check ALL wiring and connections from the 4 to 20 milliampere (4 to 20 mA) transmitter to the PLC (Programmable Logic Controller) Analog Input Module. Refer to the Main Panel Wiring Diagram.

G.MOTORS

Introduction

The four (4) motors installed on the dryer are connected directly to associated thermal magnetic starters in the main electrical enclosure. The troubleshooting information includes in this section will cover the actuation, power control and safety devices to these motors.

The motors include:

MAIN BLOWER FAN MOTOR

BURNER FAN MOTOR

LEFT (Basket) TUMBLER MOTOR

RIGHT (Basket) TUMBLER MOTOR

Refer to the following diagrams for functional, and wiring information:

ML-460 MAIN PANEL WIRING DIAGRAM

ML-460 SYSTEM BLOCK DIAGRAM

Motor Actuating Device Information

ALL motor contactors have 120 volts 50/60 Hz actuation coils. Three (3) motor contactors are actuated by outputs from the PLC (Programmable Logic Controller), and one contactor is actuated by the Burner Controller Module (BCM).

93

Image 97
Contents MLG-460 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Returning Warranty Cards Parts Returning Warranty Parts Service PartsTroubleshooting TOC Section What to do if YOU Smell GAS Safety PrecautionsPage Specifications SpecificationsSpecifications Reassembly of Dryer Installation ProceduresPage Page Location Requirements Internal AIR, Electric and Water Connections Page Page Page Page Page Left Drum Motor External Supply Connections Page Page Electrical Requirements Electrical RequirementsMLG-460 Page Fresh AIR Supply Requirements Preparation for Operation PRE START-UPCleaning Routine MaintenanceMonthly Component System Descriptions Page Page Main AIR Blower and Heat Reclaimer System Page Compressed AIR System Page Page GAS Burner and Ignition System Switch #2 Intermittent Pilot Page Page Page Page Page Page Page Safety Devices Door Open Parts ServiceWarranty Returning Warranty CardsReturning Warranty Parts Page Troubleshooting Possible Solutions Power MalfunctionsProbable Causes No Control Power Blue Light Off Machine Main Power Shuts Down Blue Indicator Off 2CRB Sprinkler Circuit Description Page Front Panel Blue Light and RED Light on Possible Solutions Unless the Water Valve to the Sprinkler is Closed General DescriptionBurner Ignition Burner Controller Input Signal ComponentsIntroduction Burner Section Input Circuit Component DescriptionLoad Door Switch DS1B Stop Detector Relay Contact SMD no Output Signal Component DescriptionGAS Fault Message gas system only Heater Fault Message Possible Solutions Page Page AIR Fault Message HI-TEMP Fault Message Possible Solutions Drum Fault Message Page Tumbler Basket Section Electrical Components Tumbler Basket Section Electrical MalfunctionsFollowing is for 2-Door Models only Rear Panel Control Problems Probable Causes Possible Solutions PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UP Unload 1 Selection Probable CausesDoor Open Problem Drum Fault Message Malfunction Probable Causes Page Rear Down Switch LS2 Front Door SwitchLint Drawer Proximity Switches Base Section Electrical MalfunctionsTumbler Basket Tilt Problems Level Fault Lint Chamber Pressure Switch PS3Probable Solutions Page Lint Screen Mechanism Problem Screen Fault Lint Chamber Air Pressure Problem AIR Fault Pendant Electrical Components Pendant Control MalfunctionsVerify Pendant Electrical Signals ML-460 Pendant Assembly Diagram Temperature Sensing Page Temperature Measurement and Sensing Problems Motors Circuit Wiring to the Analog Input ModuleMotor Protection Device Descriptions Motor Actuation Problems Probable CausesMotor Fault Screen FaultGAS Fault AIR Fault