Miller Electric NT 456 CV Owner's Manual

NT 456 CC/CVProcessesDescriptionMultiprocess WeldingArc Welding Power SourceOM-2243 212 113HJune 2005R

OM-2243 Page 6Le rayonnement de l’arc du procédé de soudagegénère des rayons visibles et invisibles intenses(ultraviolets et infrarouges) susceptibles

OM-2243 Page 72-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenanceRisque D’INCENDIE OU D’EXPLO-SION.D Ne

OM-2243 Page 82-5. Principales normes de sécuritéSafety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,de Global Engineering Documents

OM-2243 Page 9SECTION 3 − DEFINITIONS3-1. General Precautionary LabelWarning! Watch Out! There arepossible hazards as shown by thesymbols.

OM-2243 Page 103-2. Input Connection Label1 Warning! Watch Out! Thereare possible hazards asshown by the symbols.13-3. Electric Shock And Airflow Labe

OM-2243 Page 113-4. Nameplate Safety Symbols1 Warning! Watch Out! Thereare possible hazards asshown by the symbols.2 Electric shock from weldingelectr

OM-2243 Page 12SECTION 4 − INSTALLATION4-1. SpecificationsModelRated WeldingOutputAmperage/VoltageRangeMax OCV−DCAmperes Input at Rated LoadOutput 60

OM-2243 Page 134-3. Volt-Ampere CurvesVolt-ampere curves show mini-mum and maximum voltage andamperage output capabilities ofunit. Curves of other se

OM-2243 Page 144-4. Selecting A Location1 Lifting Eye2 Lifting ForksUse lifting eye or lifting forks tomove unit.If using lifting forks, extend forksb

OM-2243 Page 154-5. Dimensions And WeightsDimensionsA 32-1/2 in (826 mm) including lift eyeB 23 in (585 mm)C 38 in (966 mm) including strain reliefD 3

Miller Electric manufactures a full lineof welders and welding related equipment.For information on other quality Millerproducts, contact your local M

OM-2243 Page 164-6. TippingY Be careful when placing ormoving unit over unevensurfaces.4-7. 115 VAC Receptacle And Circuit BreakersRef. ST-800 166-DY

OM-2243 Page 174-8. Weld Output Terminals And Selecting Cable SizesTotal Cable (Copper) Length In Weld Circuit Not Exceeding100 ft (30 m) Or Less150 f

OM-2243 Page 184-10. Remote 14 Receptacle InformationSocket* Socket Information24 VOLTS ACA 24 volts ac. Protected by circuit breaker CB2.B Contact cl

OM-2243 Page 194-12. Electrical Service Guide60 Hertz ModelsInput Voltage 230 460 575Input Amperes At Rated Output 58 29 23Max Recommended Standard Fu

OM-2243 Page 204-14. Connecting Input Power 800 103-C / Ref. 801 116-A3/8 in3/8 inTools Needed:Y Installation must meet all Nationaland Local Codes −

OM-2243 Page 21SECTION 5 − OPERATION5-1. Controls219 646-B14567231 Power SwitchFan motor is thermostatically controlled andonly runs when cooling is n

OM-2243 Page 225-2. Meter Functions For CC/CV ModelsThe meters display the actual weld output values for approximately three secondsafter the arc is b

OM-2243 Page 235-3. Lift-Arc TIG Procedure For CC/CV ModelsWith Mode switch in the Lift-Arc TIGposition, start an arc as follows:1 TIG Electrode2 Work

OM-2243 Page 24SECTION 6 − MAINTENANCE & TROUBLESHOOTING6-1. Routine MaintenanceY Disconnect input power before maintaining.3 MonthsReplaceunreada

OM-2243 Page 256-3. Voltmeter/Ammeter Help Displays. All directions are in reference tothe front of the unit. All circuitryreferred to is located insi

TABLE OF CONTENTSSECTION 9 − SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1. Symbo

OM-2243 Page 266-4. TroubleshootingTrouble RemedyNo weld output; unit completely inop-erative; pilot light PL1 off.Place line disconnect device in On

OM-2243 Page 27SECTION 7 − ELECTRICAL DIAGRAM223 809-BFigure 7-1. Circuit Diagram For NT 456 CC/CV Models

OM-2243 Page 28SECTION 8 − PARTS LIST803 621-B. Hardware is common andnot available unless listed.1234567891011121314321517181920212123242526272829313

OM-2243 Page 29DescriptionPartNo.Dia.Mkgs.ItemNo.Figure 8-1. Main Assembly (Continued)Quantity14 TE1 159 244 PRIMARY BOX (Consisting of), 1. . . . .

OM-2243 Page 30803 623-C. Hardware is common andnot available unless listed.. Hardware is common andnot available unless listed.1234534768910222322241

OM-2243 Page 31Figure 8-2. Panel, Front With Components (Fig 8-1 Item 1)Description QuantityPartNo.Dia.Mkgs.ItemNo.1 204 143 PANEL, FRONT 1. . . . .

OM-2243 Page 32. Hardware is common andnot available unless listed.803 937-C12234569101112713814Figure 8-3. IGBT/Capacitor Assembly

OM-2243 Page 33DescriptionPartNo.Dia.Mkgs.221 298ItemNo. QuantityFigure 8-3. IGBT/Capacitor Assembly (Fig 8-1 item 23)1 221 301 BUS PLATE, IGBT TO CAP

OM-2243 Page 34. Hardware is common and notavailable unless listed.1ST-800 707-C2345697810Figure 8-4. Panel, Rear With ComponentsFigure 8-4. Panel, Re

Warranty Questions?Call1-800-4-A-MILLERfor your localMiller distributor.miller_warr 1/05Your distributor also givesyou ...ServiceYou always get the fa

Notes

PRINTED IN USA © 2005 Miller Electric Mfg. Co. 1/05Miller Electric Mfg. Co.An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 US

OM-2243 Page 1SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USINGsom _3/05Y Warning: Protect yourself and others from injury — read and follow these pr

OM-2243 Page 2Arc rays from the welding process produce intensevisible and invisible (ultraviolet and infrared) raysthat can burn eyes and skin. Spark

OM-2243 Page 31-3. Additional Symbols For Installation, Operation, And MaintenanceFIRE OR EXPLOSION hazard.D Do not install or place unit on, over, or

OM-2243 Page 41-5. Principal Safety StandardsSafety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,from Global Engineering Documents (

OM-2243 Page 5SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATIONsom _3/05Y Avertissement : se protéger et protéger les autres contre le risque