Miller Electric D-74S

OM-1500-6 Page 24

SECTION 8 − ELECTRICAL DIAGRAM

Figure 8-1. Circuit Diagram

Contents

Main D-74S, D-74D From Miller to You TABLE OF CONTENTS Declaration of Conformity for European Community (CE) Products Note Appleton, WI 54914 USA SECTION 1 SAFETY PRECAUTIONS - READ BEFORE USING 1-1. Symbol Usage . 1-2. Arc Welding Hazards ELECTRIC SHOCK can kill. ARC RAYS can burn eyes and skin. WELDING can cause fire or explosion. FLYING METAL can injure eyes. BUILDUP OF GAS can injure or kill. HOT PARTS can cause severe burns. 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. FALLING UNIT can cause injury. OVERUSE can cause OVERHEATING STATIC (ESD) can damage PC boards. 1-5. Principal Safety Standards 1-6. EMF Information SECTION 2 CONSIGNES DE SCURIT LIRE AVANT UTILISATION 2-1. Symboles utiliss . 2-2. Dangers relatifs au soudage larc UNE DCHARGE LECTRIQUE peut entraner la mort. LES RAYONS DARC peuvent entra- ner des brlures aux yeux et la peau. LE SOUDAGE peut provoquer un incendie ou une explosion. DES PARTICULES VOLANTES peuvent blesser les yeux. LES ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou mme la mort. DES PICES CHAUDES peuvent provoquer des brlures graves. 2-3. Dangers supplmentaires en relation avec linstallation, le fonctionnement et la maintenance Risque DINCENDIE OU DEXPLO- SION. LA CHUTE DE LAPPAREIL peut blesser. LEMPLOI EXCESSIF peut SUR- CHAUFFER LQUIPEMENT. LES CHARGES LECTROSTATIQUES peuvent endommager les circuits imprims. 2-5. Principales normes de scurit 2-6. Information EMF SECTION 3 DEFINITIONS 3-1. Warning Label Definitions 50/60 S/N: 3-2. Rating Label For CE Products AAmperes VVolts Alternating Current XDuty Cycle IP U SECTION 4 INTRODUCTION 4-1. Specifications SECTION 5 INSTALLATION . 5-1. Site Selection 5-2. Equipment Connection Diagrams . 5-3. Rear Panel Connections And Rotating Drive Assembly 5-4. 14-Pin Plug Information 5-5. Gun Recommendation Table Process Gun 5-6. Wire Type, Size, And Feed Speed Capability Table 5-7. Installing And Threading Welding Wire . 5-8. Setting Internal DIP Switches . 5-9. Optional Equipment DIP Switch Settings SECTION 6 OPERATION 6-1. Power Switch 6-2. Left/Right Select Switch 6-3. Jog/Purge 6-4. Trigger Hold Switch 6-5. Voltage Control And Digital Meters . SECTION 7 MAINTENANCE 7-1. Routine Maintenance 3 Months 6 Months 7-2. Diagnostics 7-3. Troubleshooting Page Page Page SECTION 9 PARTS LIST Figure 9-1. Main Assembly Page Page Page Page Page Page Page Page Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. Effective January 1, 2005 (Equipment with a serial number preface of LF or newer) Please complete and retain with your personal records. For Service Always provide Model Name and Serial/Style Number. Contact a DISTRIBUTOR or SERVICE AGENCY near you. Owners Record