Miller Electric 350 VS manual Connecting 3-Phase Input Power

Page 19

4-4. Connecting 3-Phase Input Power

4

!	Installation must meet all National
	and Local Codes − have only quali-
	fied persons make this installation.
!	Disconnect and lockout/tagout in-
3	put power before connecting input
	conductors from unit.
! Always connect green or green/
	yellow	conductor	to	supply
= GND/PE Earth Ground	grounding terminal first, and never
	to a line	terminal.

3

6

7

2

L1

L2 5

L3

1

.The Auto-Line circuitry in this unit au- tomatically adapts the power source to the primary voltage being applied. Check input voltage available at site. This unit can be connected to any in- put power between 208 and 575 VAC without removing cover to relink the power source.

For Three-Phase Operation

1Input Power Cord.

2Disconnect Device (switch shown in the OFF position)

3Green Or Green/Yellow Grounding Conductor

4Disconnect Device Grounding Terminal

5Input Conductors (L1, L2 And L3)

6Disconnect 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.

7 Overcurrent Protection

Select type and size of overcurrent protec- tion using Section 4-5(fused disconnect switch shown).

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

Tools Needed:

Ref. 804 532-A

OM-2251 Page 15

Image 19

Contents File Multiprocess OM-2251217 661JProcesses DescriptionFrom Miller to You Table of Contents Page HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killFlying Metal or Dirt can injure eyes Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionMoving Parts can cause injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryAbout Implanted Medical Devices Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationUNE Décharge Électrique peut entraîner la mort Symboles utilisésLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LA Chute DE L’APPAREIL peut blesser LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées Risque D’INCENDIE OU D’EXPLO- SionLES 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-2251 − Introduction SpecificationsCC Mode CV ModeOverheating Duty Cycle And Overheating60% Duty Cycle Minutes Welding Minutes RestingDimensions And Weight − InstallationSelecting a Location =GND/PE Earth Ground Connecting 1-Phase Input PowerConnecting 3-Phase Input Power Min Grounding Conductor Size In AWG/Kcmil Electrical Service GuideSingle-Phase Input Voltage Input Amperes At Rated OutputOutput Receptacles Weld Output Terminals And Selecting Cable SizesARC Welding can cause Electromagnetic Interference 350 ft 400 ft Put terminalsOperation Optional Gas Valve Operation And Shielding Gas ConnectionFront Panel Controls − OperationMeter Functions Mode Switch SettingsMode Meter Reading At Idle Meter Reading While Welding Mode Switch Setting Process Output ControlStick Start Procedure Lift-Arc TIG ProcedureLow OCV Stick Do not remove case when blowing out inside of unit − Maintenance & TroubleshootingBlowing Out Inside Of Unit Voltmeter/Ammeter Help Displays TroubleshootingCircuit Diagram − Electrical Diagram219 863-C MOD Parts AssemblyPLG1 PLG13 Page Start Your Professional Welding Career Now Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact