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OM-2252 Page 17

4-6. Tipping

!

Do not move or operate unit

where it could tip.

4-7. 115 VAC Receptacle And Circuit Breakers

Ref. 800 166-D

!

Turn Off power before

connecting to receptacle.

1

115 V 15 A AC Receptacle

RC15

Power is shared between RC15

and Remote 14 receptacle RC14

(see Section 4-11).
2

Circuit Breaker CB1

3

Circuit Breaker CB2

CB1 protects the 115 volts ac por-

tion of RC14 and RC15 from

overload.
CB2 protects the 24 volts ac portion

of RC14 from overload.
Press button to reset breaker.

1

3

2

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Содержание Dimension NT 450

Страница 1: ...Dimension NT 450 Processes Description Multiprocess Welding Arc Welding Power Source OM 2252 218 084R 2008 01 t Visit our website at www MillerWelds com File Multiprocess Welding Dimension NT 500 t And ...

Страница 2: ...ntinue the tradition They re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929 This Owner s Manual is designed to help you get the most out of your Miller products Please take time to read the Safety precautions They will help you protect yourself against potential hazards on the worksite We ve made installation and operatio...

Страница 3: ...c Shock And Airflow Label 12 3 4 Nameplate Safety Symbols 12 SECTION 4 INSTALLATION 13 4 1 Specifications 13 4 2 Duty Cycle And Overheating 13 4 3 Volt Ampere Curves 14 4 4 Selecting A Location 15 4 5 Dimensions And Weights 16 4 6 Tipping 17 4 7 115 VAC Receptacle And Circuit Breakers 17 4 8 Weld Output Terminals And Selecting Cable Sizes 18 4 9 Connecting Weld Output Cables 18 4 10 Remote 14 Rece...

Страница 4: ...Notes ...

Страница 5: ...affolds when in cramped positions such as sitting kneeling or lying or when there is a high risk of unavoid able or accidental contact with the workpiece or ground For these conditions use the following equipment in order presented 1 a semiautomaticDC constant voltage wire welder 2 a DC manual stick welder or 3 an AC welder with reduced open circuit volt age In most situations use of a DC constant...

Страница 6: ...es unless they are properly prepared according to AWS F4 1 see Safety Standards Do not weld where the atmosphere may contain flammable dust gas or liquid vapors such as gasoline Connect work cable to the work as close to the welding area as practical to prevent welding current from traveling long possibly unknown paths and causing electric shock sparks and fire hazards Do not use welder to thaw fr...

Страница 7: ...s Keep all doors panels covers and guards closed and securely in place Have only qualified persons remove doors panels covers or guards for maintenance as necessary Reinstall doors panels covers or guards when maintenance is finished and before reconnecting input power READ INSTRUCTIONS Read Owner s Manual before using or servic ing unit Use only genuine replacement parts from the manufacturer H F...

Страница 8: ...York NY 10036 8002 phone 212 642 4900 website www ansi org Standard for Fire Prevention During Welding Cutting and Other Hot Work NFPA Standard 51B from National Fire Protection Association P O Box 9101 Quincy MA 02269 9101 phone 617 770 3000 web site www nfpa org OSHA Occupational Safety and Health Standards for General Indus try Title 29 Code of Federal Regulations CFR Part 1910 Subpart Q and Pa...

Страница 9: ...ctrique à courant électrique s avère nécessaire se servir de la fonction de télécommande si l appareil en est équipé D autres consignes de sécurité sont nécessaires dans les condi tions suivantes risques électriques dans un environnement humideou si l on porte des vêtements mouillés sur des structures métalliquestelles que sols grilles ou échafaudages en position coincée comme assise à genoux ou c...

Страница 10: ...ottes de protection Le soudage effectué sur des conteneurs fermés tel que des réservoirs tambours ou des conduites peu provoquer leur éclatement Des étincelles peuven être projetées de l arc de soudure La projection d étincelles des pièce chaudes et des équipements chauds peut provoquer des incendies e des brûlures Le contact accidentel de l électrode avec des objet métalliquespeut provoquer des é...

Страница 11: ...pour usage ultérieur Utiliser les équipements corrects les bonnes procédures et suffi samment de personnes pour soulever et déplacer les bouteilles Lire et suivre les instructions sur les bouteilles de gaz comprimé l équipement connexe et le dépliant P 1 de la CGA Compressed Gas Association mentionné dans les principales normes de sécu rité 2 3 Dangers supplémentaires en relation avec l installati...

Страница 12: ...erférences L énergie électromagnétique risque de provo quer des interférences pour l équipement élec tronique sensible tel que les ordinateurs et l é quipement commandé par ordinateur tel que les robots Veiller à ce que tout l équipement de la zone de soudage soit compatibleélectromagnétiquement Pour réduire la possibilité d interférence maintenir les câbles de soudage aussi courts que possible le...

Страница 13: ...Pittsburgh PA 15250 7954 téléphone 1 866 512 1800 il y a 10 bureaux régionaux le télépho ne de la région 5 Chicago est 312 353 2220 site Internet www osha gov 2 6 Information EMF Considérationssur le soudage et les effets de basse fréquence et des champs magnétiques et électriques Le courant de soudage pendant son passage dans les câbles de sou dage causera des champs électromagnétiques Il y a eu ...

Страница 14: ...OM 2252 Page 10 ...

Страница 15: ...r head out of the fumes 2 2 Use forced ventilation or local exhaust to remove the fumes 2 3 Use ventilating fan to remove fumes 3 Welding sparks can cause explosion or fire 3 1 Keep flammables away from welding Do not weld near flammables 3 2 Welding sparks can cause fires Have a fire extinguisher nearby and have a watchperson ready to use it 3 3 Do not weld on drums or any closed containers 4 Arc...

Страница 16: ...l double check all connections jumper link positions and input voltage before applying power S 179 290 1 4 5 ÍÍÍÍ ÍÍÍÍ ÍÍÍÍ 3 ÍÍ ÍÍ 2 V A V 3 1 96 1 2 3 4 5 6 8 7 9 3 3 Electric Shock And Airflow Label 1 Warning Watch Out There are possible hazards as shown by the symbols 2 Electric shock from wiring and exposed weld terminals can kill 3 Close door before turning on unit S 179 563 1 2 3 3 4 Namepl...

Страница 17: ...p Volts DC 100 Duty Cycle 10 38V In CV Mode 78 VDC In CV Mode For 60 Hz 80 VDC In CV Mode For 50 Hz 2 18 1 11 1 05 950 1 04 0 84 0 87 0 29 While idling 4 2 Duty Cycle And Overheating Duty Cycle is percentage of 10 min utes that unit can weld at rated load without overheating If unit overheats thermostat s opens output stops and cooling fan runs Wait fifteen minutes for unit to cool Reduce amperage...

Страница 18: ...rage output capabilities of unit Curves of other settings fall be tween curves shown va_curve1 4 95 212 111 A 212 112 A A CC Mode B CV Mode 0 10 20 30 40 50 60 70 80 90 0 100 200 300 400 500 600 700 800 DC Current DC Voltage 0 10 20 30 40 50 60 70 80 90 0 100 200 300 400 500 600 DC Current DC Voltage ...

Страница 19: ...posite side of unit 3 Plate Label 4 Rating Label CE Models Typical Use rating label to determine input power needs 5 Line Disconnect Device Locate unit near correct input pow er supply Special installation may be required where gasoline or volatile liquids are present see NEC Article 511 or CEC Section 20 5 18 in 460 mm 18 in 460 mm OR 1 2 Movement Location 3 4 ...

Страница 20: ...sions A 30 in 762 mm including lift eye B 23 in 585 mm C 38 in 966 mm including strain relief D 35 in 889 mm E 1 1 4 in 32 mm F 21 1 8 in 537 mm G 1 1 8 in 29 mm H 7 16 in 11 mm Dia Weight 376 lb 171 kg 800 453 A 801 530 D E F G H 4 Holes A B C Front ...

Страница 21: ... before connecting to receptacle 1 115 V 15 A AC Receptacle RC15 Power is shared between RC15 and Remote 14 receptacle RC14 see Section 4 11 2 Circuit Breaker CB1 3 Circuit Breaker CB2 CB1 protects the 115 volts ac por tion of RC14 and RC15 from overload CB2 protects the 24 volts ac portion of RC14 from overload Press button to reset breaker 1 3 2 ...

Страница 22: ...4 0 3 4 0 4 4 0 Weld cable size AWG is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere Contact your distributor for the mm2 equivalent weld cable sizes S 0007 E 4 9 Connecting Weld Output Cables 803 778 B Turn off power before connecting to weld output terminals Failure to properly connect weld cables may cause excessive heat and start a fire or...

Страница 23: ...e REMOTE OUTPUT D Remote control circuit common OUTPUT CONTROL E 0 to 10 volts dc input command signal from remote control M Remote mode select A V AMPERAGE F Current feedback 1 volt dc per 100 amperes AMPERAGE VOLTAGE H Voltage feedback 1 volt dc per 10 arc volts GND G Circuit common for 24 and 115 volts ac circuits GND K Chassis common The remaining sockets are not used 4 11 Connecting Remote Co...

Страница 24: ...ose a circuit breaker with time current curves comparable to the recommended fuse 2 Time Delay fuses are UL class RK5 3 Normal Operating general purpose no intentional delay fuses are UL class K5 up to and including 60 amp and UL class H 65 amp and above 4 Conductor data in this section specifies conductor size excluding flexible cord or cable between the panelboard and the equipment per NEC Table...

Страница 25: ... Ground Current Sensor Optional Connect green or green yellow grounding conductor to welding power source ground ing terminal first If unit is equipped with op tional ground current sensor route ground ing conductor through reed switch two times and connect to grounding terminal 6 Welding Power Source Line Terminals 7 Input Conductors L1 U L2 V And L3 W Connect input conductors L1 U L2 V and L3 W ...

Страница 26: ... output is controlled with the V A Adjust control 6 V A Voltage Amperage Adjust Control With Mode switch in any Stick or TIG position use control to adjust amperage from 5 to 500 amps With Mode switch in a V Sense Feeder or MIG position use control to adjust voltage from 10 to 38 volts 7 Inductance Dig Control Control adjusts Dig when a Stick or CC mode is selected on mode switch When set to wards...

Страница 27: ...Preset Volts Blank V A 78 0 5 3 Lift Arc TIG Procedure For CC CV Models With Mode switch in the Lift Arc TIG position start an arc as follows 1 TIG Electrode 2 Workpiece Touch tungsten electrode to work piece at weld start point hold electrode to workpiece for 1 2 seconds and slowly lift electrode An arc will form when electrode is lifted Normal open circuit voltage is not present before tungsten ...

Страница 28: ...uthorized Service Agent Every 3 Months Labels Weld Terminals Every 3 Months Δ Cables And Cords Every 6 Months Durning heavy service clean monthly 6 2 Fuse F1 Ref 800 101 C Disconnect input power be fore opening rear access door 1 Fuse F1 See Parts List For Rating Fuse F1 protects control transform er from overload If F1 opens weld output and fan motor stops Re place F1 Close door when finished 1 T...

Страница 29: ... occurs when the primary voltage drops more than 20 below the linked primary voltage setting for more than 30 seconds A constant HELP 6 message is displayed and weld output is disabled Once the primary voltage returns to less than 10 below the linked primary voltage setting the constant error mes sage ceases and weld output is enabled NOTE Operating the welder out of the normal operating range 12 ...

Страница 30: ...lean and tighten all weld output connections Unit provides only maximum or mini mum weld output Check position of Panel Remote control switch see Section 5 1 Have Factory Authorized Service Agent check control board PC1 front panel display board PC2 and hall device HD1 Erratic or improper weld output Use proper size and type of weld cable see Section 4 8 Clean and tighten all weld connections Chec...

Страница 31: ...OM 2252 Page 27 Notes Work like a Pro Pros weld and cut safely Read the safety rules at the beginning of this manual ...

Страница 32: ...OM 2252 Page 28 SECTION 7 ELECTRICAL DIAGRAM Figure 7 1 Circuit Diagram For Dimension NT ...

Страница 33: ...OM 2252 Page 29 218 081 F ...

Страница 34: ...ont w Components 1 2 217 136 LABEL WARNING ELECTRIC SHOCK 2 2 176 254 LABEL GENERAL PRECAUTIONARY WORDLESS INTL 2 3 179 432 PANEL SIDE 2 4 179 431 COVER TOP 1 5 213 898 BAFFLE AIR UPPER IGBT ASSY 1 6 162 830 LIFT EYE 1 7 177 279 GASKET LIFT EYE 1 8 162 820 BAR MTG LIFT EYE 2 9 Fig 8 4 PANEL REAR 1 10 C21 22 23 163 906 CAPACITOR 3 11 159 034 HOLDER FUSE MINTR 10 3MM X 33 3 TO 38 1MM PANEL MT 1 12 F...

Страница 35: ...IT 3 SKT 5 SKT 1 21 212 316 BRACKET MOUNTING IGBT ASSEMBLY 2 22 179 276 BUSHING SNAP IN NYL 1 000 ID X 1 375 MTG HOLE CENT 1 23 Fig 8 3 ASSEMBLY IGBT CAPACITOR 1 24 234 503 COVER IGBT CAPACITOR ASSEMBLY 1 25 057 358 BUSHING SNAP IN NYL 1 000 ID X 1 375 MTG HOLE 1 26 190 512 STAND OFF NO 6 32 X 640 LG 250 HEX AL FEM 6 27 PC1 222 309 CIRCUIT CARD ASSY CONTROL 1 PLG8 RC2131 204 HOUSING PLUG SOCKETS 1...

Страница 36: ... G Hardware is common and not available unless listed Hardware is common and not available unless listed 1 2 3 4 5 3 4 7 6 8 9 10 22 24 22 18 19 20 21 23 13 14 15 12 11 16 25 26 27 28 29 Figure 8 2 Panel Front With Components ...

Страница 37: ...S 1 PLG2 115 091 HOUSING PLG SKTS SERVICE KIT 1 18 211 149 ELECTRONICS BOX 1 19 CB 1 2 093 995 CIRCUIT BREAKER MAN RESET 1P 15A 250VAC FRICT 2 20 RC15 604 176 RCPT STR DX GRD 2P3W 15A 125V 1 21 229 500 RECEPTACLE CAPACITOR SWITCH W LEADS Includes 1 RC14 143 976 RCPT W SKTS SERVICE KIT 1 MOD 1 227 590 MODULE FILTER 1MF X 9 500VDC W GND 1 PLG1 200 952 CONN RECT INSULATION DISPLACEMENT 1 C6 7 136 735...

Страница 38: ...OM 2252 Page 34 Hardware is common and not available unless listed 803 937 C 1 2 2 3 4 5 6 9 10 11 12 7 13 8 14 Figure 8 3 IGBT Capacitor Assembly ...

Страница 39: ...010 494 BUSHING SNAP IN NYL 1 375 ID X 1 750 MTG HOLE 2 8 224 144 BUS BAR IGBT OUTPUT W FINS 1 9 223 387 ASSY HEAT SINK 600A IGBT 1 10 TH2 188 431 THERMISTOR NTC 30K OHM 25 DEG C 27IN LEAD 1 11 010 546 BUSHING SNAP IN NYL 375 ID X 500 MTG HOLE 1 12 C1 222 654 CAPACITOR ELCTLT 35000 UF 100 VDC CAN 3 00DIA STUDMNT 3 13 222 653 BRACKET MTG CAPACITOR 1 14 010 467 CONN CLAMP CABLE 1 250 1 To maintain t...

Страница 40: ...RY 1 6 217 733 LABEL WARNING ELECTRIC SHOCK INPUT POWER EN FR 1 6 179 290 LABEL WARNING ELECTRIC SHOCK INPUT CONNECTION CE W 1 7 602 177 SCREW SET 250 20 X 250KNRLPT SCH STL 2 8 124 274 BRACKET MTG FAN MOTOR 1 9 FM 208 402 MOTOR 1 12HP 230V 1550RPM 50 60HZ 83A 1 10 010 467 CONNECTOR CLAMP CABLE 1 250 1 When ordering a component originally displaying a precautionary label the label should also be o...

Страница 41: ...Notes ...

Страница 42: ...Notes Work like a Pro Pros weld and cut safely Read the safety rules at the beginning of this manual ...

Страница 43: ...Induction Heating Coils and Blankets Cables and Non Electronic Controls APT SAF Model Plasma Cutting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate Spoolguns Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as contact tips cutting nozzles contactors brushes slip rings relays or parts that fail due to normal wear Exceptio...

Страница 44: ...d retain with your personal records Always provide Model Name and Serial Style Number Contact a DISTRIBUTOR or SERVICE AGENCY near you Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Replacement Parts Training Schools Videos Books Technical Manuals Servicing Information and Parts Circuit Diagrams Welding Process Handbooks Contact the Delivering...

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