Electrical Diagram | Miller Electric Big Blue 251D instruction

SECTION 9 − ELECTRICAL DIAGRAM

SC-190 650-B

Figure 9-1. Circuit Diagram For Welding Generator

OM-480 Page 32

Image 36

Miller Electric Big Blue 251D manual Electrical Diagram, Circuit Diagram For Welding Generator

Contents

Processes DescriptionVisit our website at OM-480128 576AC January Engine Driven Welding Generator From Miller to You Table of Contents Options and Accessories Warranty Symbol Usage Arc Welding Hazards Engine Hazards Compressed Air Hazards Principal Safety Standards California Proposition 65 WarningsEMF Information Radiation can cause interference Signification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereux LE Soudage peut provoquer un in- cendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïe ’EXPLOSION DE LA Batterie peut DES Organes Mobiles peuvent provoquer des blessuresLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessures Principales normes de sécurité Information sur les champs électromagnétiques Symbols And Definitions − Definitions − Specifications Weld, Power, And Engine SpecificationsDimensions, Weights, And Operating Angles Curve shows typical fuel use under weld or power loads Exceeding duty cycle can damage unit and void warrantyFuel Consumption Duty Cycle And Overheating AC Generator Power Volt-Ampere Curves Optional AC Power Plant Curves − Installation Installing Welding GeneratorConnecting The Battery Installing Muffler Pipe Engine Prestart ChecksStop engine and let cool Fuel Do not use gasoline. Gasoline Installing Ether Cylinder Optional Ether Starting Aid Connecting To Weld Output Terminals Selecting Weld Cable Sizes 150 ft 200 ft 250 ft350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Put terminals − Operating the Welding Generator Controls See Section Description Of Front Panel Controls See Section Remote A/V ControlStop engine and fix trouble if either light goes on Do not use Ether if engine is running − Operating Auxiliary Equipment Volt Duplex And Optional Gfci ReceptaclesX 15 a + 120 V x 10 a = 3.0 kVA/kW OM-480 Volt Duplex Receptacle Optional 240 V 15 a AC Receptacle RC1Circuit Breakers CB1 And CB2 X 10 a + 120 V x 5 a = 3.0 kVA/kW Connecting Optional AC Power Plant 240 Volt Twistlock Receptacle Optional − Maintenance and Troubleshooting Maintenance Label Servicing Air Cleaner Servicing Fuel And Lubrication Systems To change oil and filterTo replace primary fuel filter To replace secondary fuel filter Adjusting Engine Speed Standard ModelsModels With Automatic Idle Optional Overload Protection Servicing Optional Ether Starting Aid Full Empty Inspecting And Cleaning Optional Spark Arrestor TroubleshootingStop engine and let cool. Reinstall cleanout plug Welding Generator Power Check connections to ac power plant see SectionEngine Maximum see Section − Electrical Diagram Circuit Diagram For Welding Generator − RUN-IN Procedure WetstackingWelding Generator Run-In Procedure Using Load Bank Procedure at less thanStop engine Do not touch hot exhaust From flammables Do not Perform Run-In Procedure Using Resistance Grid Bank/gridFrom flammables Do not perform run-in − Generator Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Grounding When Supplying Building Systems How Much Power Does Equipment Require?Earth ground if supplying Amperes x Volts = Watts Approximate Power Requirements For Industrial Motors Approximate Power Requirements For Farm/Home EquipmentIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running Watts Power Required To Start Motor How Much Power Can Generator Supply?Single-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 = Starting Amperage Typical Connections To Supply Standby Power Work like a Pro Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes OM-480 − Parts List 125 124 123 122120 121 117 116 2526 126 Dia Part Description Quantity Mkgs 128 Panel, Front w/Components -1Item 111 Panel, Front w/Components -1Item 111 Cont’d Generator Generator -1Item 114 IncludesPage Page Service Your distributor also givesSupport To locate a Distributor or Service Agency visit Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s