Hobart Welding Products OM-487 manual Volt-Ampere Curves, CC/AC Mode, CC/DC Mode, CV/DC Mode

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3-6. Volt-Ampere Curves

A. CC/AC Mode

 

80

 

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

VOLTSAC

50

 

 

 

 

 

 

 

 

30

 

 

MAX

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

MIN

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

0

50

100

150

200

250

300

350

400

AC AMPERES

B. CC/DC Mode

 

80

 

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

DC VOLTS

50

 

 

 

 

 

 

 

 

40

 

 

 

MAX

 

 

 

 

 

 

 

 

 

 

 

 

30

MIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

0

50

100

150

200

250

300

350

400

 

 

 

 

DC AMPERES

 

 

 

 

C. CV/DC Mode

DC VOLTS

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.

ST-189 278 / ST-189 280 / ST-189 282-A

OM-487 Page 12

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Contents Processes OM-487Description From Hobart to You Table of Contents Page Symbol Usage Arc Welding HazardsElectric Shock can kill ARC Rays can burn eyes and skinEngine Hazards Battery Explosion can Blind Moving Parts can cause injuryEngine Exhaust Gases can kill Engine Heat can cause firePrincipal Safety Standards EMF InformationRadiation can cause interference ARC Welding can cause interferenceSignification des symboles Consignes DE SÉ Curité Lire Avant UtilisationUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Soudage peut provoquer un in- cendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES PIÈ CES Chaudes peuvent provoquer des brû lures graves LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie LA Chute DE L’APPAREIL peut blesserPrincipales normes de sé curité Information sur les champs é lectromagné tiquesLE Soudage À L’ARC risque de provoquer des interfé rences Consignes relatives aux stimulateurs cardiaquesSpecifications Symbol DefinitionsWeld, Power, And Engine Specifications DefinitionsDimensions Dimensions, Weights, And Operating AnglesFuel Consumption Auxiliary Power Curve Exceeding duty cycle can damage unit and void warrantyDuty Cycle 100% Duty Cycle at 290 Amperes DCCC/AC Mode CC/DC ModeCV/DC Mode Volt-Ampere CurvesInstallation Installing Welding GeneratorInstalling Exhaust Pipe Do not lift unit from end Airflow Clearance13 mm Full Diesel Coolant Recovery Tank Engine Prestart ChecksFuel Do not use gasoline. Gasoline will damage engine OilConnecting The Battery Connecting To Weld Output TerminalsAdding Coolant To Radiator Connect negativeSelecting Weld Cable Sizes Remote 14 Receptacle InformationAdjusting MIG Weld Puddle Consistency Stop engineTo wet out weld puddle To stiffen weld puddleDo not switch under load Place switch in Run position to operate most Gmaw equipmentOperating Welding Generator Front Panel ControlsRemote Amperage/Voltage Control 1nected to the remote 14 recep- tacle is runningAuxiliary Power Receptacles And Circuit Breakers Auxiliary power decreases as weld current increasesOpen, contact Factory Authorized Service Agent Operating Auxiliary EquipmentGfci Receptacle Option Optional Auxiliary Power ReceptaclesAustralian Receptacle Option Wiring Optional 240 Volt Plug ReceptacleMaintenance and Troubleshooting Maintenance LabelRoutine Maintenance 20 h50 h 75 h200 h 400 h500 h 800 hServicing Air Cleaner Servicing Optional Spark Arrestor Servicing Engine Cooling SystemStop engine and let cool Servicing Engine Fuel And Lubrication Systems Fuel Lines Replace fuel lines if cracked or wornAdjusting Engine Speed Adjusting Fuel Solenoid PositionStop screw is factory-set and should not be adjusted Checking Fuel SolenoidAdjusting Throttle Solenoid Checking Throttle SolenoidCheck for non-binding Solenoid in relaxedAdjusting Idle Speed Making Engine Speed AdjustmentsAdjusting Weld/Power Speed Troubleshooting Overload ProtectionWelding Trouble RemedyLow weld output Check control settings Check and clean air cleaner as necessary see SectionCheck engine speed, and adjust if necessary see Section See engine manualAuxiliary Power EngineTrouble Remedy Electrical Diagram Circuit Diagram For Welding Generator201 RUN-IN Procedure WetstackingRun-In Procedure Using Load Bank Load BankRun-In Procedure Using Resistance Grid Do not touch hot exhaustBank/grid From flammablesAuxiliary Power Guidelines Has this symbolSelecting Equipment Grounding Generator To Truck Or Trailer FrameGrounding When Supplying Building Systems How Much Power Does Equipment Require?Earth ground if supplying Use ground device as stated in electrical codesApproximate 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 xTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes56- -3 Parts List80- -2 Main Assembly Dia Part Description 124 Panel, Front w/Components Hardware is common Not available unless listedPanel, Front w/Components -1 Item Generator -1 Item Service SupportHobart Welding Products Contact your Distributor forCall