Miller Electric 300 P

OM-4433 Page 44

SECTION 9 − ELECTRICAL DIAGRAMS

Figure 9-1. Circuit Diagram For Welding Generator

Contents

Main Big Blue 300 P From Miller to You Page TABLE OF CONTENTS OM-4433 Page 1 SECTION 1 SAFETY PRECAUTIONS READ BEFORE USING Warning: Protect yourself and others from injury read and follow these precautions. 1-1. Symbol Usage Marks a special safety message. 1-2. Arc Welding Hazards 1-3. Engine Hazards BATTERY EXPLOSION can BLIND. FUEL can cause fire or explosion. MOVING PARTS can cause injury. HOT PARTS can cause severe burns. 1-4. Compressed Air Hazards BREATHING COMPRESSED AIR can cause serious injury or death. COMPRESSED AIR can cause injury. TRAPPED AIR PRESSURE AND WHIPPING HOSES can cause injury. HOT METAL from air arc cutting and gouging can cause fire or explosion. 1-6. California Proposition 65 Warnings 1-7. Principal Safety Standards 1-8. EMF Information OM-4433 Page 5 SECTION 2 CONSIGNES DE SCURIT LIRE AVANT UTILISATION 2-1. Signification des symboles 2-2. Dangers relatifs au soudage larc UN CHOC LECTRIQUE peut tuer. Une tension DC importante subsiste lintrieur des onduleurs aprs avoir coup lalimentation. 2-3. Dangers existant en relation avec le moteur LEXPLOSION DE LA BATTERIE peut RENDRE AVEUGLE. LE CARBURANT MOTEUR peut provo- quer un incendie ou une explosion. DES ORGANES MOBILES peuvent pro- voquer des blessures. DES PIECES CHAUDES peuvent provo- quer des brlures et blessures. 2-4. Dangers lis lair comprim RESPIRER LAIR COMPRIM peut pro- voquer des blessures graves ou causer la mort. LAIR COMPRIM peut provoquer des blessures. LAIR COMPRIME EMMAGASINE ET DES TUYAUX SOUS PRESSION peuvent provo- quer des blessures. Le METAL CHAUD lors du coupage et gougeage plasma peut provoquer un in- cendie ou une explosion. 2-6. Proposition californienne 65 Avertissements 2-7. Principales normes de scurit 2-8. Information EMF SECTION 3 DEFINITIONS + 3 4 3-1. Warning Label Definitions 2 Page 3-3. Symbols And Definitions Some symbols are found only on CE products. NOTE AAmperes VVolts Panel/Local Remote 3 n X Duty Cycle U0 SECTION 4 SPECIFICATIONS 4-1. Weld, Power, And Engine Specifications Output Range Rated Welding Welding Mode Weld Output Page Page Page SECTION 5 INSTALLATION 5 -1. Installing Welding Generator 5-2. Mounting Welding Generator Page 5-4. Activating The Dry Charge Battery (If Applicable) + 5-5. Connecting The Battery 5-6. Engine Prestart Checks 5-7. Connecting To Weld Output Terminals 5-8. Selecting Weld Cable Sizes* 5-9. Connecting To Remote 14 Receptacle RC14 24 VOLTS AC OUTPUT 24 VOLTS AC REMOTE Page 6-2. Description Of Front Panel Controls (See Section 6-1) 6-3. Process/Contactor Switch Process/Contactor Switch Settings 6-4. Lift-Arc Start Procedure 6-5. Remote Voltage/Amperage Control SECTION 7 OPERATING AUXILIARY EQUIPMENT 7-1. Generator Power Receptacles SECTION 8 MAINTENANCE & TROUBLESHOOTING 8-1. Routine Maintenance Page 8-3. Servicing Air Cleaner 8-4. Inspecting And Cleaning Optional Spark Arrestor Muffler 8-5. Servicing Engine Cooling System 8-6. Adjusting Engine Speed On Standard Models RPM (Hz) 8-7. Adjusting Engine Speed On Models With Automatic Idle (Optional) 8-8. Servicing Fuel And Lubrication Systems 8-9. Overload Protection 8-10. Checking Generator Brushes 8-11. Voltmeter/Ammeter Help Displays HL.P 22 HL.P 23 HL.P 24 HL.P 25 HL.P 20 HL.P 21 8-12. Troubleshooting Note A. Welding B. Generator Power C. Engine Page Page Page Page SECTION 10 RUN-IN PROCEDURE 10-1. Wetstacking 10-2. Run-In Procedure Using Load Bank 10-3. Run-In Procedure Using Resistance Grid + SECTION 11 GENERATOR POWER GUIDELINES NOTE 11-1. Selecting Equipment 11-2. Grounding Generator To Truck Or Trailer Frame 11-3. Grounding When Supplying Building Systems 11-4. How Much Power Does Equipment Require? 11-5. Approximate Power Requirements For Industrial Motors 11-6. Approximate Power Requirements For Farm/Home Equipment 11-7. Approximate Power Requirements For Contractor Equipment 11-8. Power Required To Start Motor 11-9. How Much Power Can Generator Supply? 11-10.Typical Connections To Supply Standby Power 11-11.Selecting Extension Cord (Use Shortest Cord Possible) SECTION 12 PARTS LIST Figure 12-1. Main Assembly Page Page Page Page Page Page Page Page Page Note Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. Effective January 1, 2006 (Equipment with a serial number preface of LG 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