Miller Electric 280 NT Stick And MIG Mode Volt-Ampere Curves, CC/DC Stick Mode, CV/DC MIG Mode

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. A complete Parts List is available at www.MillerWelds.com

4-9. Stick And MIG Mode Volt-Ampere Curves

A. CC/DC Stick Mode

100

	80
VOLTS	60	3600RPM Max
VOLTS

DC	40	3000RPM Max
DC

Min

0	200	400
		DC AMPERES

B. CV/DC MIG Mode

	35	3600RPM Max
	35
	30	3000RPM Max
		3000RPM Max
DCVOLTS	25
DCVOLTS	15	20V Preset
	20
		Min
	10
	5
	0 0	200	400
		DC AMPERES

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

600

222 555 / 222 556 / 222 557

OM-4430 Page 17

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Contents Processes OM-4430217 243RDescription File Engine DriveFrom Miller to You Table of Contents − Maintenance & Troubleshooting Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burnsBuildup of GAS can injure or kill Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionCompressed Air Hazards Engine HazardsHOT Parts can cause burns and injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information Radiation can cause interference− Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer Indique des instructions spécifiquesDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion LE Bruit peut affecter l’ouïe ’EXPLOSION DE LA Batterie peuDES Organes Mobiles peuvent pro voquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresRisque D’INCENDIE OU D’EXPLO- Sion DES Organes Mobiles peuvent provoquer des blessures LE Surchauffement peut endom- mager le moteur électriqueLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutPrincipales normes de sécurité Proposition californienne 65 AvertissementsInformation EMF En ce qui concerne les implants médicaux− Definitions Symbol DefinitionsWeld, Power, And Engine Specifications − SpecificationsDimensions, Weights, and Operating Angles DescriptionFuel Consumption While Welding And Using Generator Power Dimensions For Units With Optional Running GearRPM Weld 1800 RPMAC Amperes Generator Power CurveTIG Mode Volt-Ampere Curves Duty Cycle100% Duty Cycle at 280 Amperes DC/CC Stick And MIG Mode Volt-Ampere Curves CC/DC Stick ModeCV/DC MIG Mode Installing Welding Generator − InstallationOil Engine Prestart ChecksReplacing The Battery Connecting Or Replacing The Battery+ − Connect negative − cable lastInstalling Exhaust Pipe Tools Needed 1/2Stop engine and let cool Stop engine Connecting To Weld Output TerminalsFailure to properly connect Damage your machineRemote Receptacle Information Selecting Weld Cable SizesFront Panel Controls − Operating Welding GeneratorCold Weather Engine Operation Description Of Engine Controls See SectionInfrequently LoadedControlling Engine Speed And Weld/Generator Output Process Switch Settings Process SwitchWire Position Stick PositionsTIG Lift-ArcStart Procedure Stick Start Procedure − Scratch Start TechniqueLift-Arc t TIG TIG Electrode WorkpieceMin 20 a DC Remote Voltage/Amperage ControlConnect Remote Set Process Stick Welding OnlyControlling Engine Speed And Weld/Generator Power Output Hz Generator Power Receptacles And Supplementary Protectors− Operating Auxiliary Equipment Extension cordVariable Frequency Hz Generator Power Receptacle RC3 Press button to reset. If suppleRized Service Agent Receptacle Current Available in AmperesRoutine Maintenance − Maintenance & Troubleshooting100 200Maintenance Label Servicing Optional Spark Arrestor Servicing Air CleanerChanging Engine Oil, Oil Filter, And Fuel Filter Open left side door Overload ProtectionTroubleshooting WeldingTrouble Remedy Variable Frequency Generator Power Receptacle RC3 Hz Generator Power Receptacles RC1 And RC2Check receptacle wiring and connections Necessary partsEngine Engine starts but stops when EngineCheck engine charging system according to engine manual Od of time− Parts List Recommended Spare PartsRecommended Spare Parts Circuit Diagram For Welding Generator Models − Electrical Diagrams232 961-A Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame Electrically Bond GeneratorHow Much Power Does Equipment Require? Grounding When Supplying Building SystemsUse ground device as stated in electrical codes Amperes x Volts = WattsApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible SOCKET/WRENCH Selection Table Standard Metric Welding Symbols Page Page Service Your distributor also givesSupport Miller Electric Mfg. Co To locate a Distributor or Service Agency visitFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s

4-9. Stick And MIG Mode Volt-Ampere Curves

A. CC/DC Stick Mode

DC AMPERES

B. CV/DC MIG Mode

DC AMPERES