Miller Electric Big Blue 400 PX manual Volt-Ampere Curves − 60 Hz Operation, DC Amperes

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4-5. Volt-Ampere Curves − 60 Hz Operation

A. Stick Mode
	100
	90
	80
S	70
LT	60
VO	60
VO	50
DC	50
DC	40		MAX
	30		MAX
	30	MIN
	20	MIN	300
	20		300
	10
	0

		0	100	2 00	300	400	500
				DC AMPERES
B. MIG Mode
	100
	80
S	60
VO LT	60
VO LT	40	MAX
DC		MAX


	20	MIN
		MIN
	0	0	100	200	300	400	500
		0	100	200	300	400	500

DC AMPERES

C. TIG Mode

100

VOLTS	80
VOLTS	60
	60
DC	40
	40
	20		MIN		300		MAX
			MIN		300		MAX
	0	0	100	200	300	400	500
				DC AMPERES

The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding generator. Curves of all other settings fall between the curves shown.

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OM-223 037 Page 17

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Contents File Engine Drive OM-223 037MProcesses DescriptionFrom Miller to You Table of Contents Warranty Decrot1/07 DirectivesStandards Decrotsound200710 Sound Level InformationHOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skinCompressed Air Hazards Engine HazardsFalling Unit can cause injury Welding Wire can cause injuryHOT Parts can cause burns and injury Fire or Explosion hazardRadiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LE Bruit peut affecter l’ouïe DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux LE Soudage peut provoquer un in cendie ou une explosionDES Organes Mobiles peuvent pro voquer des blessures ’EXPLOSION DE LA Batterie peuRisque D’INCENDIE OU D’EXPLO- Sion LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures ’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures LES Fils DE Soudage peuvent provoquer des blessuresEn ce qui concerne les implants médicaux Proposition californienne 65 AvertissementsPrincipales normes de sécurité Information EMFStd − Definitions− 50 h Std Manufacturer’s Rating Label Symbols And Definitions Dimensions, Weights, And Operating Angles − SpecificationsWeld And Power Specifications Engine SpecificationsVolt-Ampere Curves − 50 Hz Operation Stick ModeMIG Mode TIG ModeDC Amperes Volt-Ampere Curves − 60 Hz Operation100% Duty Cycle At 250 Amperes Curve shows typical fuel use under weld or power loadsFuel Consumption Duty Cycle And Overheating − 50 Hz OperationDuty Cycle And Overheating − 60 Hz Operation AC Generator Power CurveAc power curve shows the gen- erator power in amperes Grounding1 − InstallationInstalling Welding Generator Location/Airflow ClearanceMounting Welding Generator Tools Needed Installing Exhaust PipeStop engine and let cool Connecting The Battery Activating The Dry Charge Battery If ApplicableOil Coolant Recovery TankEngine Prestart Checks FuelConnecting To Weld Output Terminals Selecting Weld Cable Sizes Socket Information Connecting To Remote 14 Receptacle RC14Gas Connections OM-223 Front Panel Controls See SectionStop Description Of Front Panel Controls See Section Process/Contactor Switch Settings Process/Contactor SwitchReceptacle RC14 Set Wire ProcessRemote Voltage/Amperage Control Connect RemoteVolt Receptacles − Operating Auxiliary EquipmentRoutine Maintenance − Maintenance & TroubleshootingMaintenance Label Website Address ServicePerkins Customer Assistance Checking Generator BrushesReinstall primary element and cap dust ejector down Servicing Air CleanerTo clean air filter Stop engine and let cool Radiator Draincock Inspecting And Cleaning Spark Arrestor MufflerServicing Engine Cooling System Tools Needed 3/8To drain water from fuel system Servicing Fuel And Lubrication SystemsTo change oil and filter To replace primary canister fuel filterOverload Protection Help 25 Display Optional Voltmeter/Ammeter Help DisplaysHelp 20 Display Welding TroubleshootingStandard Generator Power Engine Sphere oil refineries Coolant temperature is too high see SectionWhen the engine is restarted Engine suddenly stopsCircuit Diagram For Welding Generator − Electrical Diagrams222 966--C Welding Generator − RUN-IN ProcedureWetstacking From flammables Run-In Procedure Using Load BankRun-In Procedure Using Resistance Grid Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Amperes x Volts = Watts Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentKVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible 110− −5 108 109− −3 101 105 104 107 106 102 103 100− −2 − Parts List12−4 5756 112 Dia Part Description Quantity Mkgs Dia Part Description Quantity 213668 Front w/Components PanelPanel Front w/Components Control Panel Generator Rectifier Assembly Wiring Harnesses Material Thickness Gauge Start Your Professional Welding Career Now Support Your distributor also givesYour distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact

4-5. Volt-Ampere Curves − 60 Hz Operation

A. Stick Mode

B. MIG Mode

C. TIG Mode

DC AMPERES