Miller Electric Axcess 450 C. Best Setup

OM-220 389 Page 27

C. Best Setup

Ref. 804 462-A

1 Welding Power Source

2 Electrode Cable

3 Feeder Cable

4 Work Cable

5 V oltage Sensing Lead

6 Wire Feeder

7 Workpiece

This arrangement is the best setup for

proper voltage sensing at the workpiece.

Voltage feedback to the welding power

sources will more accurate and result in

reliable arc starts and better arc quality .

Current Flow Path

Contents

Main Axcess 450 From Miller to You Page TABLE OF CONTENTS Declaration of Conformity for European Community (CE) Products . Manufacturer:European Contact: Page 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 M E TAL o r DIRT can injure eyes. BUILDUP OF GAS can injure or kill. MAGNETIC FIELDS can affect Implanted Medical Devices. 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. FALLING UNIT can cause injury. OVERUSE can cause OVERHEATING FLYING SPARKS can cause injury. 1-4. California Proposition 65 Warnings 1-5. Principal Safety Standards 1-6. EMF Information SECTION 2 2-1. Symboles utiliss . 2-2. Dange rs relatifs au soudage larc UNE DCHARGE LECTRIQUE peut entraner la mort. DES PICES CHAUDES peuvent provoquer des brlures graves. t tre LES FUMES ET LES GAZ peuvent dangereux. 2-3. e Risque DINCENDIE OU DEXPLO- SION. LA CHUTE DE LAPPAREIL peut blesser. LEMPLOI EXCESSIF peut SUR- CHAUFFER LQUIPEMENT. 2-4. Proposition californienne 65 Avertissements 2-5. Principales normes de scurit 2-6. Information EMF Page SECTION 3 DEFINITIONS 3-1. Manufacturers Warning Label Definitions = <60 3-2. WEEE Label Page SECTION 4 INSTALLATION . 4-1. Specifications 4-2. Dimensions And Weight 4-3. Duty Cycle And Overheating A/V 4-4. Volt-Ampere Curves . CV MODE 4-5. Selecting A Location ! . 4-6. Connection Diagram . 4-7. Rear Panel Receptacles And Supplementary Protectors 4-8. Connecting To Weld Terminals ! . 4-9. Network Wire Feeder Receptacle Functions 4-10. Electrical Service Guide . 4-11. Connecting Input Power ! 3 SECTION 5 RECOMMENDED SETUP PROCEDURES 5-1. Selecting Weld Cable Sizes* ! ) * 5-2. Welding Circuit . Standard Welding Circuit Large Weld Structure 5-3. Arranging Welding Cables To Reduce Welding Circuit Inductance Bad Better Best . 5-4. Using Multiple Welding Power Sources 5-5. Voltage Sensing Lead And Work Cable Connections For Multiple Welding Arcs A. Bad Setup B. Better Setup C. Best Setup SECTION 6 OPERATION 6-1. Front Panel Switches SECTION 7 MAINTENANCE 7-1. Routine Maintenance ! 7-2. Blowing Out Inside of Unit ! SECTION 8 SAFETY PRECAUTIONS FOR SERVICING 8-1. Symbol Usage . 8-2. Servicing Hazards ELECTRIC SHOCK can kill. 8-3. California Proposition 65 Warnings 8-4. EMF Information SECTION 9 TROUBLESHOOTING 9-1. Removing Cover and Measuring Input Capacitor Voltage ! 9-2. Process Control Module PC4 Diagnostic LEDs 9-3. Diagnostic LEDs On Process Control Module PC4 9-4. Network And Module Status LEDs 9-5. Troubleshooting Page Page SECTION 11 PARTS LIST Figure 11-1. Main Assembly Page Page Page Page Page Page Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. Effective January 1, 2007 (Equipment with a serial number preface of LH 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