Miller Electric 280 NT manual Operating Welding Generator, Front Panel Controls

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

SECTION 6 − OPERATING WELDING GENERATOR

6-1. Front Panel Controls

2

3

 

4

5

1

6

9

8

7

Ref 216 172-D

1 Process Switch

See Section 6-5for Process switch informa- tion.

2 Remote Receptacle

Use receptacle to connect remote control.

When a remote voltage/amperage control is connected to the Remote receptacle, the Auto Sense Remote feature automatically switches voltage/amperage control to the re- mote control (see Sections 5-7and 6-8).

With remote voltage/amperage control con- nected, weld output in CC mode is deter- mined by a combination of front panel and re- mote control voltage/amperage settings.

If no remote voltage/amperage control is connected to the Remote receptacle, the front panel Voltage/Amperage control ad- justs voltage and amperage.

3 And 4 Displays

Displays can show weld process information (voltage and amperage) or maintenance in- formation (hourmeter or oil change count- down).

Meter Weld Functions: In Wire mode, Volt- meter displays preset weld voltage when not welding. Meters display actual voltage and amperage when welding and for five sec- onds after welding has stopped.

In Stick and TIG modes, Voltmeter reads ON and Ammeter displays preset amperage when not welding. Meters display actual volt- age and amperage when welding and for five seconds after welding has stopped.

Meter Engine Maintenance Functions: Meters display engine hours when Engine Control switch is in the Run/Idle 3600/2400 position but engine is not running.

Meter Oil Change Countdown: With en- gine off, place Engine Control switch in Run/ Idle 3000/1800 position to see hours before next recommended oil change. Oil change hours start at 100 (fresh oil) and count down to 0 (oil change due). The meters display negative (−) hours if 100 hours is exceeded. After changing oil, reset counter by cycling Engine Control switch between Run/Idle positions three times.

Place Engine Control switch in Off position after reading meters.

5 Fuel Level Indicator

With Engine running or Engine Control switch in either Run/Idle position, LED’s indi- cate fuel left in tank.

6 Voltage/Amperage Control

Use control to select weld voltage or amperage. Control may be adjusted while welding.

.For maximum weld output (above 220

Amps), run unit at 3600 rpm. For weld output below 220 Amps, operate unit at 3000 or 3600 rpm.

With Process switch in any Stick or TIG set- ting, use control to adjust amperage. With Process switch in Wire position, use control to adjust voltage. When a remote voltage/ amperage control is connected to Remote receptacle RC4, control sets the maximum amperage in Stick and TIG modes, but has no effect in MIG mode.

7Engine Control Switch (see Section 6-2)

8Engine Choke Control (see Section 6-2)

9Engine Speed Control Switch (see Sec- tion 6-2)

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Contents OM-4430217 243R ProcessesDescription File Engine DriveFrom Miller to You Table of Contents − Maintenance & Troubleshooting Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can cause severe burnsFumes and Gases can be hazardous Buildup of GAS can injure or killARC Rays can burn eyes and skin Welding can cause fire or explosionEngine Hazards Compressed Air HazardsWelding Wire can cause injury HOT Parts can cause burns and injuryFire or Explosion hazard Falling Unit can cause injuryPrincipal Safety Standards California Proposition 65 WarningsEMF Information Radiation can cause interferenceSignification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN Choc Électrique peut tuer Indique des instructions spécifiquesLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion ’EXPLOSION DE LA Batterie peu LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent pro voquer des blessures ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion LE Surchauffement peut endom- mager le moteur électrique DES Organes Mobiles peuvent provoquer des blessuresLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutProposition californienne 65 Avertissements Principales normes de sécuritéInformation EMF En ce qui concerne les implants médicauxSymbol Definitions − Definitions− Specifications Weld, Power, And Engine SpecificationsDimensions, Weights, and Operating Angles DescriptionDimensions For Units With Optional Running Gear Fuel Consumption While Welding And Using Generator PowerRPM Weld 1800 RPMGenerator Power Curve AC AmperesDuty Cycle TIG Mode Volt-Ampere Curves100% Duty Cycle at 280 Amperes DC/CC CC/DC Stick Mode Stick And MIG Mode Volt-Ampere CurvesCV/DC MIG Mode − Installation Installing Welding GeneratorEngine Prestart Checks OilConnecting Or Replacing The Battery Replacing The Battery+ − Connect negative − cable lastTools Needed 1/2 Installing Exhaust PipeStop engine and let cool Connecting To Weld Output Terminals Stop engineFailure to properly connect Damage your machineSelecting Weld Cable Sizes Remote Receptacle Information− Operating Welding Generator Front Panel ControlsDescription Of Engine Controls See Section Cold Weather Engine OperationInfrequently LoadedControlling Engine Speed And Weld/Generator Output Process Switch Process Switch SettingsWire Position Stick PositionsStick Start Procedure − Scratch Start Technique TIG Lift-ArcStart ProcedureLift-Arc t TIG TIG Electrode WorkpieceRemote Voltage/Amperage Control Min 20 a DCConnect Remote Set Process Stick Welding OnlyHz Generator Power Receptacles And Supplementary Protectors Controlling Engine Speed And Weld/Generator Power Output− Operating Auxiliary Equipment Extension cordPress button to reset. If supple Variable Frequency Hz Generator Power Receptacle RC3Rized Service Agent Current Available in Amperes Receptacle− Maintenance & Troubleshooting Routine Maintenance100 200Maintenance Label Servicing Air Cleaner Servicing Optional Spark ArrestorChanging Engine Oil, Oil Filter, And Fuel Filter Overload Protection Open left side doorWelding TroubleshootingTrouble Remedy Hz Generator Power Receptacles RC1 And RC2 Variable Frequency Generator Power Receptacle RC3Check receptacle wiring and connections Necessary partsEngine starts but stops when Engine EngineCheck engine charging system according to engine manual Od of timeRecommended Spare Parts − Parts ListRecommended Spare Parts − Electrical Diagrams Circuit Diagram For Welding Generator Models232 961-A − Generator Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Electrically Bond GeneratorGrounding When Supplying Building Systems How Much Power Does Equipment Require?Use ground device as stated in electrical codes Amperes x Volts = WattsApproximate 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 WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsPower Required To Start Motor How Much Power Can Generator Supply?Single-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 Your distributor also gives ServiceSupport 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
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