Miller Electric DVI-2 R manual Duty Cycle And Overheating, Minutes

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

4-2. Duty Cycle And Overheating

A. 115 VAC

Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating.

If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding.

NOTICE − Exceeding duty cycle can damage unit or gun and void warranty.

20% duty cycle at 90 amps

2 Minutes Welding

8 Minutes Resting

B. 230 VAC

40% duty cycle at 150 amps

4 Minutes Welding

6 Minutes Resting

Overheating

 

0

A or V

 

15

 

OR

Minutes

Reduce Duty Cycle

 

duty1 4/95 − 124 655 / 220 896-A

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Contents OM-232 386B ProcessesDescription File MIG GmawFrom Miller to You Table of Contents − MIG Welding Gmaw Guidelines − Parts ListTypical MIG Process Connections Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can cause severe burnsFumes and Gases can be hazardous ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal or Dirt can injure eyesWelding Wire can cause injury Fire or Explosion hazardFalling Unit can cause injury Moving Parts can cause injuryPrincipal Safety Standards California Proposition 65 WarningsEMF Information About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LE Bruit peut endommager l’ouïe LES Bouteilles peuvent exploser si elles sont endommagéesRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-232 386 − Installation Symbols And DefinitionsSpecifications − DefinitionsDuty Cycle And Overheating 40% duty cycle at 150 amps Minutes Welding Minutes RestingOverheating MinutesConnecting To Weld Output Terminals Correct InstallationVolt-Ampere Curves Range Range 4 RangeInstalling Work Cable And Clamp Setting Gun Polarity For Wire TypePolarity Changeover Label Information 11/16Rear Panel Installing Gas SupplyTools Needed 8, 5/8 Installing MIG Wire Spool and Adjusting Hub Tension Installing 1 Or 2 lb Wire SpoolUse compression spring With 8 in 200 mm spools To turn spool, tension is setConnecting 1-Phase Input Power For 230 VAC 230 VAC =GND/PE Earth GroundHz Single Phase Electrical Service Guide For 230 VACExtension Cord Data Do not move or operate unit where it could tip Selecting a Location And Connecting Input Power18 in 457 mm of space for airflow Threading Welding Wire PressureScale Remove gun nozzle and contact tipTurn Off unit, and disconnect input power Connecting An Optional Spool Gun Controls − OperationVoltage Control Weld Parameter Chart Voltage Chart SettingsInput Line Parameter226 652-A − Maintenance &TROUBLESHOOTING Routine MaintenanceChanging Drive Roll and Wire Inlet Guide Unit OverloadAligning Drive Rolls and Wire Guide TroubleshootingTurn Off power Welding Trouble RemedyWire Drive/Gun Trouble Remedy OM-232 386 − Electrical Diagram Welding Power Source Circuit Diagram229 598-B − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Size Amperage RangeAmperage Select VoltageHolding And Positioning Welding Gun Groove WeldsConditions That Affect Weld Bead Shape PushPerpendicular Drag Short Normal LongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Spatter Troubleshooting − PorosityTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadWeld bead Troubleshooting Guide For Semiautomatic Welding Equipment Problem Probable Cause RemedyCommon MIG Shielding Gases ApplicationWelding arc not stable Wire slipping in drive rolls Readjust welding parametersWelding power source Drive rolls if necessary− Parts List Drive Roll And Wire Guide KitsYour 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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