Miller Electric Axcess 450 Connecting Input Power, Welding Power Source Input Power Connections

Page 26

4-11. Connecting Input Power

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219

Tools Needed:

5/16 in

803 855-A / Ref. 803 766-A / 219 842-A

! Turn Off welding power source, and check voltage on input capacitors according to Section 9-1before proceeding.

!Installation must meet all National and Local Codes − have only qualified persons make this installation.

!Disconnect and lockout/tagout input power before connecting input conductors from unit.

!Make input power connections to the welding power source first.

! Always connect green or green/yellow conductor to supply grounding terminal first, and never to a line terminal.

1Input Power Conductors (Customer Supplied Cord)

Select size and length of conductors using Section 4-10.Conductors must comply with national, state, and local electrical codes. If

applicable, use lugs of proper amperage capacity and correct hole size.

Welding Power Source Input Power Connections

2 Strain Relief

Install strain relief of proper size for unit and input conductors. Route conductors (cord) through strain relief and tighten screws.

SUse large strain relief for input conductor size 8 and larger.

SUse small strain relief with reducing washers for input conductor size 10.

Connect input conductors as shown in illustration.

Route green or green/yellow grounding conductor through current transducer and connect to welding power source grounding terminal first. Then connect input conductors L1, L2, and L3 to welding power source line terminals.

Reinstall side panel onto welding power source.

Disconnect Device Input Power Connections

3Disconnect Device (switch shown in the OFF position)

4Green Or Green/Yellow Grounding Conductor

5Disconnect Device Grounding Terminal

6Input Conductors (L1, L2 And L3)

7Disconnect Device Line Terminals

Connect green or green/yellow grounding conductor to disconnect device grounding terminal first.

Connect input conductors L1, L2, and L3 to disconnect device line terminals.

8 Over-Current Protection

Select type and size of over-current protec- tion using Section 4-10(fused disconnect switch shown).

Close and secure door on disconnect device. Remove lockout/tagout device, and place switch in the On position.

OM-220 389 Page 20

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Contents Description OM-220 389JProcesses File Advanced Manufacturing SystemsFrom Miller to You Table of Contents − Troubleshooting Decstat1/07 DirectivesStandards Page 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 mortLE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux Risque D’INCENDIE OU D’EXPLO LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’APPAREIL peut blesserLE Soudage À L’ARC risque de provoquer des interférences Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures En ce qui concerne les implants médicaux Principales normes de sécuritéInformation EMF OM-220 389 Manufacturer’s Warning Label Definitions Disconnect input plug or power before working on machine− Definitions Keep your head out of the fumesWeee Label I1eff Symbols And DefinitionsI1max Manufacturer’s Rating LabelDimensions And Weight − InstallationSpecifications 17-3/32 in 434 mm 17-3/8 in 441 mm 19-3/32 in 485 mm100% Duty Cycle At 450 Amperes Duty Cycle And OverheatingVolt-Ampere Curves OverheatingDo not stack units. Beware of tipping Connection DiagramSelecting a Location Rear Panel Receptacles And Supplementary Protectors Connecting To Weld Terminals Incorrect InstallationPin Network Wire Feeder Receptacle FunctionsElectrical Service Guide 50/60 HzDisconnect Device Input Power Connections Connecting Input PowerWelding Power Source Input Power Connections − Recommended Setup Procedures Selecting Weld Cable SizesWelding Circuit Gun TravelWCL Current Flow PathBest Using Multiple Welding Power Sources Bad Setup Wire Feeder Drop in the workpiece. The voltage dropBetter Setup Supporting separate voltage feedback to OM-220 389Best Setup PDA Port PC Port OM-220 389 Front Panel Switches− Operation Blowing Out Inside of Unit − MaintenanceRoutine Maintenance Servicing Hazards − Safety Precautions for ServicingShock Hazard from testing Exploding Parts can cause injuryCalifornia Proposition 65 Warnings − Troubleshooting Removing Cover and Measuring Input Capacitor VoltageStatus Diagnosis Process Control Module PC4 Diagnostic LED’sDiagnostic LED’s On Process Control Module PC4 Red Network And Module Status LED’s Network Status LED’sModule Status LED’s Circuit board is operating normallyTroubleshooting Trouble Remedy− Electrical Diagrams Circuit Diagram For Welding Power Source220 420-B − Parts List 16 − FigWindtunnel Assembly LH And RH Windtunnel Assembly LH And RH -1Item Top Tray Assembly Rear Panel Assembly Front Panel Assembly Dia Part Support ServiceYour distributor also gives 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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