Miller Electric MARK VIII-2 manual Connecting Input Power, Nal first, and never to a line terminal

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B. Connecting Input Power

8

7

10

9

4

6

2

1

	L1	(U)
6	L2	(V)
	L3	(W)

Tools Needed:
1-1/16 in	4
1-1/16 in
3/8 in	3
3/8 in

5

ssb2.4* 1/94 − Ref. ST-144 569-B

YInstallation must meet all National and Local Codes − have only qualified per- sons make this installation.

YDisconnect and lockout/tagout input power before connecting input con- ductors from unit.

YMake input power connections to the welding power source first.

YAlways connect green or green/yellow conductor to supply grounding termi-

nal first, and never to a line terminal.

See rating label on unit and check input volt- age available at site.

1Input Power Conductors (Customer Supplied Cord)

Select size and length of conductors using Section 4-11. 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 Con- nections

2 Strain Relief (Customer Supplied)

Route conductors (cord) through strain relief and tighten screws.

3Machine Grounding Terminal

4Green Or Green/Yellow Grounding Conductor

Connect green or green/yellow grounding conductor to welding power source grounding terminal first.

5Welding Power Source Line Terminals

6Input Conductors L1 (U), L2 (V) And L3

(W)

Connect input conductors L1 (U), L2 (V) and L3 (W) to welding power source line terminals.

Close and secure access door on welding power source.

Disconnect Device Input Power Connec- tions

7Disconnect Device (switch shown in OFF position)

8Disconnect Device (Supply) Grounding Terminal

Connect green or green/yellow grounding conductor to disconnect device grounding ter- minal first.

9 Disconnect Device Line Terminals

Connect input conductors L1 (U), L2 (V) And L3 (W) to disconnect device line terminals.

10 Overcurrent Protection

Select type and size of overcurrent protection using Section 4-11(fused disconnect switch shown).

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

OM-218 Page 19

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Contents Description OM-218From Miller to You Table of Contents Page Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer unIncendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéAmperes Input at Rated Load Output, 60 Hz − SpecificationsSpecifications Volt-Ampere CurvesOverheating Duty Cycle And OverheatingFor Each Module And Total System For Main TransformerLocation And Airflow − InstallationSelecting a Location And Moving Polyweld System MovementSelecting And Preparing Weld Output Cables Dimensions, Weights And Base Mounting Hole LayoutDimensions Weight350 ft 400 ft 15m 30m 45 m 60 m 70 m 90 m 105 m 120 m Weld Cable Size150 ft 200 ft 250 ft Connecting To Weld Output Terminals Connecting Weld Output CablesSeparate Work Connections Read Safety Blocks at start of -6before proceedingStandard Module Connections Common Work Cable Size Separate Work Connections Common Work Parallel Module ConnectionsRemote Contactor Control Connections Optional Remote Amperage Control ReceptacleTE3 TE2 Connecting Input PowerVolts AC Duplex Receptacle Positioning Jumper LinksDisconnect Device Input Power Connec- tions Connecting Input PowerWelding Power Source Input Power Con- nections Close and secure access door on welding power sourceControls Electrical Service GuideTime-Delay − OperationHz Model Shown Amperage Adjustment ControlsPower Switch Push Buttons And Pilot Light Min 35 a Max 125 a Set Switch Set Desired Maximum AmperageOverload Protection − Maintenance & TroubleshootingRoutine Maintenance MonthsModule Fuse Links F11 And F12 Through F81 And F82 Blank Module PanelControl Fuses F3 And F4 Before inspecting, maintaining, or servicing TroubleshootingTurn Off polyweld system, and disconnect input power OM-218 Circuit Diagram For Polyweld System − Electrical DiagramSD-082 527-C Amperage Range Gas Type Polarity − Selecting and Preparing Tungsten ElectrodeSelecting Tungsten Electrode Preparing Tungsten For DC Electrode Negative Dcen Welding Torch Movement During Welding − Guidelines for TIG Welding GtawPositioining The Torch Butt Weld And Stringer Bead Joint Lap Joint Corner Joint Positioning Torch Tungsten For Various Weld JointsMain Assembly Section a − Parts ListTP1 Main Assembly Section B CR1 194 Panel, Front Module w/Components -1Item Panel, Front Lower w/Components Panel, Front Lower w/Components -1ItemPage Support ServiceYour distributor also gives 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