Miller Electric XMT 456CV, XMT 456 CC manual Troubleshooting, Reset circuit breaker CB1 see Section

Page 34

6-5. Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trouble

 

Remedy

 

 

 

 

 

No weld output; unit completely inop-

Place line disconnect switch in On position (see Section 4-12).

erative.

 

 

 

 

 

 

 

 

 

 

Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 4-12).

 

 

 

 

 

 

 

 

Check for proper input power connections (see Section 4-12).

 

 

 

 

 

No weld output; meter display On.

Check, repair, or replace remote control.

 

 

 

 

 

 

 

 

Unit overheated. Allow unit to cool with fan On (see Section 4-2).

 

 

 

 

 

Erratic or improper weld output.

Use proper size and type of weld cable (see Section 4-7).

 

 

 

 

 

 

 

 

Clean and tighten all weld connections.

 

 

 

 

 

No 115 volts ac output at duplex recep-

Reset circuit breaker CB1 (see Section 4-10).

tacle, Remote 14 receptacle.

 

 

 

 

 

 

 

No 24 volts ac output at Remote 14 re-

Reset circuit breaker CB2 (see Section 4-10).

ceptacle.

 

 

 

 

 

 

 

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Contents Description OM-203 034NProcesses File MIG GmawFrom Miller to You Table of Contents Standards DirectivesDecstat6/05 Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Unit can cause injury Welding Wire can cause injuryFire or Explosion hazard Moving Parts can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings 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 Risque D’INCENDIE OU D’EXPLO- Sion LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées 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-203 034 Manufacturer’s Warning Label Definitions Disconnect input plug or power before working on machineKeep your head out of the fumes 60 s I1eff Symbols And DefinitionsI1max Weee LabelManufacturer’s Rating Labels Specifications Duty Cycle And OverheatingVolt-Ampere Curves Dimensions And WeightCV Modes CC Modes Movement Tipping Connecting To Weld TerminalsSelecting a Location LocationARC Welding can cause Electromagnetic Interference Weld Output Terminals And Selecting Cable Sizes350 ft 400 ft Put terminals Connecting Weld Output Cables Remote 14 Receptacle InformationVolts AC Duplex Receptacle Electrical Service GuideHz Three Phase Input VoltageAlways connect grounding conductor first Connecting Input PowerInput Filter Board L21 Tools NeededFront Panel Controls For CV Only Models Mode And Voltage Control For CV Only ModelsMode Control Voltage ControlMeter Functions For CV Only Models Preset Volts BlankPower Switch Front Panel Controls For CC/CV ModelsHold TIG Gtaw Blank Meter Functions For CC/CV ModelsPanel Control Gtaw Pulsed MIGMode Switch Settings For CC/CV Models Lift-Arc TIG Procedure For CC/CV Models Touch Seconds Do not Strike Like a MatchDo not remove case when blowing out inside of unit Blowing Out Inside Of UnitRemoving Case and Measuring Input Capacitor Voltage Voltmeter/Ammeter Help Displays Troubleshooting Reset circuit breaker CB1 see SectionOM-203 034 − Electrical Diagram 203 505-A Circuit Diagram For CC/CV Welding Power Source 204 950−B Complete Assembly 39 40 41Dia Part Description Quantity Mkgs 180 Your distributor also gives ServiceSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s
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