Hobart 750 Connecting Input Power, Three-Phase System, Always connect, Grounding conductor first

Page 17

2-9. Connecting Input Power

Three-Phase Connections

Single-Phase Connections

1 Strain Relief Clamp

Route input and grounding conduc- tors through clamp to terminal board.

2Input And Grounding Conductors

3 Line Disconnect Device

Select type and size of overcurrent protection using Section 2-7.

1

Three-Phase System

Single-Phase System

Y

Always connect

 

grounding conductor first.

= GND/PE

3

3

L1

(U)

 

L2

(V)

L1 (U)

L3

(W)

L2 (V)

2

 

2

 

 

OR

2

Tools Needed:

7/16 in

1/2 in

Ref. 801 455 / Ref. 144 221 / Ref. 070 399-C / Ref. 801 454-C

OM-279 Page 13

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Contents Description OM-279Processes From Hobart to You Table of Contents Page Marks a special safety message Symbol UsagePlasma Arc Cutting Hazards Cutting can cause fire or explosionFlying Sparks can cause injury Exploding Parts can injureARC Rays can burn eyes and skin Noise can damage hearingMoving Parts can cause injury HOT Parts can cause severe burnsFlying Metal can injure eyes Overuse can cause OverheatingAbout Pacemakers Principal Safety StandardsEMF Information LE Coupage pré sente un risque de feu ou d’explosion Signification des symbolesUNE DÉ Charge É Lectrique peut entraîner la mort Identifie un message de sé curité particulierLE Bruit peut endommager l’ouïe Risque de blessure en casLES Fumé ES ET LES GAZ peuvent ê tre dangereux LE Plasma D’ARC peut entraîner des blessuresDES Pieces Chaudes peuvent pro- voquer des brû lures graves LES Bouteilles peuvent exploser si elles sont endommagé esDES Organes Mobiles peuvent provoquer des blessures DES Particules Volantes peuvent blesser les yeuxConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Specifications InstallationDimensions And Weight Duty Cycle And OverheatingCutting Speed Special installation may beSelecting a Location Movement Location And AirflowElectrical Service Guide Connecting Gas/Air SupplyPlacing Jumper Links Three-Phase System Connecting Input PowerAlways connect Grounding conductor firstFront Panel Controls OperationSet pressure to 70 PSI 483 kPa Setting Gas/Air PressureTrigger is pressed Sequence Of OperationExample Of Cutting Operation Months Maintenance & TroubleshootingChecking Shield Cup Shutdown System Trouble LightsRunning slowly TroubleshootingFan motor FM does not run Power light Circuit Diagram For 200/230/460 Volt Models Electrical DiagramsCircuit Diagram For 230/460/575 Volt Models OM-279 Main Assembly Parts ListDia Part Mkgs Description Quantity Consumable Parts For ICE-50C Support ServiceHobart Welding Products Contact your Distributor for