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Miller Electric 251 NT manual Electrical Diagram, Circuit Diagram For Welding Generator

Models: 251 NT

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Page 34

SECTION 8 – ELECTRICAL DIAGRAM

Figure 8-1. Circuit Diagram For Welding Generator

OM-486 Page 30

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Miller Electric 251 NT manual Electrical Diagram, Circuit Diagram For Welding Generator

Contents

Processes OM-486Description From Miller to You Table of Contents Page Electric Shock can kill Symbol UsageArc Welding Hazards ARC Rays can burn eyes and skinEngine Hazards Engine Exhaust Gases can kill Battery Explosion can BlindMoving Parts can cause injury Engine Heat can cause fireRadiation can cause interference Principal Safety StandardsEMF Information ARC Welding can cause interferenceUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE SÉ Curité Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES PIÈ CES Chaudes peuvent provoquer des brû lures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïeLA Chaleur DU Moteur peut pro- voquer un incendie DES Organes Mobiles peuvent provoquer des blessures’EXPLOSION DE LA Batterie peut LA Chute DE L’APPAREIL peut blesserLE Soudage À L’ARC risque de provoquer des interfé rences Principales normes de sé curitéInformation sur les champs é lectromagné tiques Consignes relatives aux stimulateurs cardiaquesWeld, Power, And Engine Specifications SpecificationsSymbol Definitions DefinitionsDimensions Dimensions, Weights, and Operating AnglesFuel Consumption Exceeding duty cycle can damage unit and void warranty Auxiliary Power CurveDuty Cycle CC/AC Mode CC/DC ModeCV/DC Mode Volt-Ampere CurvesInstalling Welding Generator InstallationEngine Prestart Checks Read and follow all instruc Activating The Dry Charge Battery If ApplicableDo not overfill battery cells ChargerConnecting To Weld Output Terminals Connecting The BatteryInstalling Exhaust Pipe Connect negative cable last100 ft 30 m Or Less Selecting Weld Cable SizesRemote 14 Receptacle Information 10 100% Duty CycleTo wet out weld puddle Adjusting MIG Weld Puddle ConsistencyStop engine To stiffen weld puddleRemote Amperage/Voltage Switch DC Polarity/AC SwitchDo not switch under load Operating Welding GeneratorRemote Amperage/Voltage Control Operating Auxiliary Equipment Auxiliary Power Receptacles And Circuit BreakersWeld Current 120 240 Optional Auxiliary Power Receptacles Gfci Receptacle OptionMaintenance and Troubleshooting Maintenance Label Servicing Optional Spark Arrestor Servicing Air CleanerStop engine and let cool Changing Engine Oil, Oil Filter, And Fuel Filter Idle Speed Adjustment Adjusting Engine SpeedWeld/Power Speed Adjustment Welding TroubleshootingOverload Protection Trouble RemedyCheck and adjust engine speed see Section Low weld output Check control settingsCheck and clean air cleaner as necessary see Section See engine manualEngine Auxiliary PowerCheck receptacle wiring and connections Check governor according to engine manualElectrical Diagram Circuit Diagram For Welding GeneratorST-190 578-B Selecting Equipment Auxiliary Power GuidelinesGrounding Generator To Truck Or Trailer Frame Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP xTypical Connections To Supply Standby Power 240 120 GroundSelecting Extension Cord Use Shortest Cord Possible Current Load Watts AmperesMain Assembly Parts List24-Fig Dia Part Description Mkgs Quantity Panel, Front w/Components Panel, Front w/Components -1 Item Generator -1 Item Page Page Page Your distributor also gives ServiceSupport Owner’s Record Miller Electric Mfg. Co