INVERTEC V275S - Aventa · INVERTEC V275S MANUAL MIG MAG · TIG · ARCO SUBMERSO · MULTIPROCESSO · RETIFICADORAS CORTE PLASMA INVERSORAS · ELETRODO · GERADORES DE ENERGIA · ROBÔS

INVERTEC V275SMANUAL

MIG MAG · TIG · ARCO SUBMERSO · MULTIPROCESSO · RETIFICADORAS CORTE PLASMAINVERSORAS · ELETRODO · GERADORES DE ENERGIA · ROBÔS

LOCAÇÃO E VENDAMÁQUINAS DE SOLDA E CORTE

www.aventa.com.br | [email protected]

ALUGUEL E VENDA DE MÁQUINAS DE SOLDA E CORTE PLASMA

TODOS OS PROCESSOS DE SOLDAGEM

TRABALHAMOS EXCLUSIVAMENTE COM AS MELHORES MÁQUINAS DO MUNDO

ASSESSORIA PARA PROCESSOS ESPECIAIS

TECNOLOGIA ATUALIZADA PARA GARANTIR O MELHOR CUSTO BENEFÍCIO

AUMENTO DE PRODUTIVIDADE SOLDADOR-PEÇA

REDUÇÃO DE CUSTO COM ENERGIA

INVERTEC ® V275-S

Operator’s Manual

Save for future reference

Date Purchased

Code: (ex: 10859)

Serial: (ex: U1060512345)

IM802-C | Issue D ate 11-Feb

© Lincoln Global, Inc. All Rights Reserved.

For use with machines having Code Numbers:

10993, 11001,11164, 11165, 11224, 11225, 11446

Register your machine: www.lincolnelectric.com/register

Authorized Service and Distributor Locator: www.lincolnelectric.com/locator

FOR ENGINEpowered equipment.

1.a. Turn the engine off before troubleshooting and maintenancework unless the maintenance work requires it to be running.

____________________________________________________1.b. Operate engines in open, well-ventilated

areas or vent the engine exhaust fumes outdoors.

____________________________________________________1.c. Do not add the fuel near an open flame

welding arc or when the engine is running.Stop the engine and allow it to cool beforerefueling to prevent spilled fuel from vaporiz-ing on contact with hot engine parts andigniting. Do not spill fuel when filling tank. Iffuel is spilled, wipe it up and do not startengine until fumes have been eliminated.

____________________________________________________1.d. Keep all equipment safety guards, covers and devices in

position and in good repair.Keep hands, hair, clothing andtools away from V-belts, gears, fans and all other movingparts when starting, operating or repairing equipment.

____________________________________________________

1.e. In some cases it may be necessary to remove safetyguards to perform required maintenance. Removeguards only when necessary and replace them when themaintenance requiring their removal is complete.Always use the greatest care when working near movingparts.

___________________________________________________1.f. Do not put your hands near the engine fan.

Do not attempt to override the governor oridler by pushing on the throttle control rodswhile the engine is running.

___________________________________________________1.g. To prevent accidentally starting gasoline engines while

turning the engine or welding generator during maintenancework, disconnect the spark plug wires, distributor cap ormagneto wire as appropriate.

iSAFETYi

ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.

Read and understand the following safety highlights. For additional safety information, it is strongly recommended that youpurchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is availablefrom the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.

BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES AREPERFORMED ONLY BY QUALIFIED INDIVIDUALS.

WARNING

ELECTRIC AND MAGNETIC FIELDSmay be dangerous

2.a. Electric current flowing through any conductor causes localized Electric and Magnetic Fields (EMF). Welding current creates EMF fields around welding cables and welding machines

2.b. EMF fields may interfere with some pacemakers, andwelders having a pacemaker should consult their physicianbefore welding.

2.c. Exposure to EMF fields in welding may have other healtheffects which are now not known.

2.d. All welders should use the following procedures in order tominimize exposure to EMF fields from the welding circuit:

2.d.1. Route the electrode and work cables together - Securethem with tape when possible.

2.d.2. Never coil the electrode lead around your body.

2.d.3. Do not place your body between the electrode andwork cables. If the electrode cable is on your right side, the work cable should also be on your right side.

2.d.4. Connect the work cable to the workpiece as close aspossible to the area being welded.

2.d.5. Do not work next to welding power source.

1.h. To avoid scalding, do not remove theradiator pressure cap when the engine ishot.

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituentsare known to the State of California to cause can-cer, birth defects, and other reproductive harm.

The engine exhaust from this product containschemicals known to the State of California to causecancer, birth defects, or other reproductive harm.

The Above For Diesel Engines The Above For Gasoline Engines

iiSAFETYii

ARC RAYS can burn.4.a. Use a shield with the proper filter and cover

plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistantmaterial to protect your skin and that of your helpers fromthe arc rays.

4.c. Protect other nearby personnel with suitable, non-flammablescreening and/or warn them not to watch the arc nor exposethemselves to the arc rays or to hot spatter or metal.

ELECTRIC SHOCK cankill.3.a. The electrode and work (or ground) circuits

are electrically “hot” when the welder is on.Do not touch these “hot” parts with your bareskin or wet clothing. Wear dry, hole-free

gloves to insulate hands.

3.b. Insulate yourself from work and ground using dry insulation.Make certain the insulation is large enough to cover your fullarea of physical contact with work and ground.

In addition to the normal safety precautions, if weldingmust be performed under electrically hazardousconditions (in damp locations or while wearing wetclothing; on metal structures such as floors, gratings orscaffolds; when in cramped positions such as sitting,kneeling or lying, if there is a high risk of unavoidable oraccidental contact with the workpiece or ground) usethe following equipment:

• Semiautomatic DC Constant Voltage (Wire) Welder.• DC Manual (Stick) Welder.• AC Welder with Reduced Voltage Control.

3.c. In semiautomatic or automatic wire welding, the electrode,electrode reel, welding head, nozzle or semiautomaticwelding gun are also electrically “hot”.

3.d. Always be sure the work cable makes a good electricalconnection with the metal being welded. The connectionshould be as close as possible to the area being welded.

3.e. Ground the work or metal to be welded to a good electrical(earth) ground.

3.f. Maintain the electrode holder, work clamp, welding cable andwelding machine in good, safe operating condition. Replacedamaged insulation.

3.g. Never dip the electrode in water for cooling.

3.h. Never simultaneously touch electrically “hot” parts ofelectrode holders connected to two welders because voltagebetween the two can be the total of the open circuit voltageof both welders.

3.i. When working above floor level, use a safety belt to protectyourself from a fall should you get a shock.

3.j. Also see Items 6.c. and 8.

FUMES AND GASEScan be dangerous.5.a. Welding may produce fumes and gases

hazardous to health. Avoid breathing thesefumes and gases. When welding, keepyour head out of the fume. Use enoughventilation and/or exhaust at the arc to keep

fumes and gases away from the breathing zone. Whenwelding with electrodes which require specialventilation such as stainless or hard facing (seeinstructions on container or MSDS) or on lead orcadmium plated steel and other metals or coatingswhich produce highly toxic fumes, keep exposure aslow as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanicalventilation. In confined spaces or in some circum-stances, outdoors, a respirator may be required.Additional precautions are also required when weldingon galvanized steel.

5. b. The operation of welding fume control equipment is affectedby various factors including proper use and positioning ofthe equipment, maintenance of the equipment and the spe-cific welding procedure and application involved. Workerexposure level should be checked upon installation andperiodically thereafter to be certain it is within applicableOSHA PEL and ACGIH TLV limits.

5.c. Do not weld in locations near chlorinated hydrocarbon vaporscoming from degreasing, cleaning or spraying operations.The heat and rays of the arc can react with solvent vapors toform phosgene, a highly toxic gas, and other irritating prod-ucts.

5.d. Shielding gases used for arc welding can displace air andcause injury or death. Always use enough ventilation,especially in confined areas, to insure breathing air is safe.

5.e. Read and understand the manufacturer’s instructions for thisequipment and the consumables to be used, including thematerial safety data sheet (MSDS) and follow youremployer’s safety practices. MSDS forms are available fromyour welding distributor or from the manufacturer.

5.f. Also see item 1.b.

iiiSAFETYiii

FOR ELECTRICALLYpowered equipment.

8.a. Turn off input power using the disconnectswitch at the fuse box before working onthe equipment.

8.b. Install equipment in accordance with the U.S. NationalElectrical Code, all local codes and the manufacturer’srecommendations.

8.c. Ground the equipment in accordance with the U.S. NationalElectrical Code and the manufacturer’s recommendations.

CYLINDER may explodeif damaged.7.a. Use only compressed gas cylinders

containing the correct shielding gas for theprocess used and properly operatingregulators designed for the gas and

pressure used. All hoses, fittings, etc. should be suitable forthe application and maintained in good condition.

7.b. Always keep cylinders in an upright position securelychained to an undercarriage or fixed support.

7.c. Cylinders should be located:• Away from areas where they may be struck or subjected tophysical damage.

• A safe distance from arc welding or cutting operations andany other source of heat, sparks, or flame.

7.d. Never allow the electrode, electrode holder or any otherelectrically “hot” parts to touch a cylinder.

7.e. Keep your head and face away from the cylinder valve outletwhen opening the cylinder valve.

7.f. Valve protection caps should always be in place and handtight except when the cylinder is in use or connected foruse.

7.g. Read and follow the instructions on compressed gascylinders, associated equipment, and CGA publication P-l,“Precautions for Safe Handling of Compressed Gases inCylinders,” available from the Compressed Gas Association1235 Jefferson Davis Highway, Arlington, VA 22202.

WELDING and CUTTINGSPARKS cancause fire or explosion.6.a. Remove fire hazards from the welding area.

If this is not possible, cover them to preventthe welding sparks from starting a fire.

Remember that welding sparks and hotmaterials from welding can easily go through small cracksand openings to adjacent areas. Avoid welding nearhydraulic lines. Have a fire extinguisher readily available.

6.b. Where compressed gases are to be used at the job site,special precautions should be used to prevent hazardoussituations. Refer to “Safety in Welding and Cutting” (ANSIStandard Z49.1) and the operating information for theequipment being used.

6.c. When not welding, make certain no part of the electrodecircuit is touching the work or ground. Accidental contactcan cause overheating and create a fire hazard.

6.d. Do not heat, cut or weld tanks, drums or containers until theproper steps have been taken to insure that such procedureswill not cause flammable or toxic vapors from substancesinside. They can cause an explosion even though they havebeen “cleaned”. For information, purchase “RecommendedSafe Practices for the Preparation for Welding and Cutting ofContainers and Piping That Have Held HazardousSubstances”, AWS F4.1 from the American Welding Society(see address above).

6.e. Vent hollow castings or containers before heating, cutting orwelding. They may explode.

6.f. Sparks and spatter are thrown from the welding arc. Wear oilfree protective garments such as leather gloves, heavy shirt,cuffless trousers, high shoes and a cap over your hair. Wearear plugs when welding out of position or in confined places.Always wear safety glasses with side shields when in awelding area.

6.g. Connect the work cable to the work as close to the weldingarea as practical. Work cables connected to the buildingframework or other locations away from the welding areaincrease the possibility of the welding current passingthrough lifting chains, crane cables or other alternate cir-cuits. This can create fire hazards or overheat lifting chainsor cables until they fail.

6.h. Also see item 1.c.

6.I. Read and follow NFPA 51B “ Standard for Fire PreventionDuring Welding, Cutting and Other Hot Work”, availablefrom NFPA, 1 Batterymarch Park, PO box 9101, Quincy, Ma022690-9101.

6.j. Do not use a welding power source for pipe thawing.

Refer to http://www.lincolnelectric.com/safety for additional safety information.

ivSAFETYiv

PRÉCAUTIONS DE SÛRETÉPour votre propre protection lire et observer toutes les instruc-tions et les précautions de sûreté specifiques qui parraissentdans ce manuel aussi bien que les précautions de sûretégénérales suivantes:

Sûreté Pour Soudage A LʼArc1. Protegez-vous contre la secousse électrique:

a. Les circuits à lʼélectrode et à la piéce sont sous tensionquand la machine à souder est en marche. Eviter toujourstout contact entre les parties sous tension et la peau nueou les vétements mouillés. Porter des gants secs et sanstrous pour isoler les mains.

b. Faire trés attention de bien sʼisoler de la masse quand onsoude dans des endroits humides, ou sur un planchermetallique ou des grilles metalliques, principalement dans

les positions assis ou couché pour lesquelles unegrande partie du corps peut être en contact avec lamasse.

c. Maintenir le porte-électrode, la pince de masse, le câblede soudage et la machine à souder en bon et sûr étatdefonctionnement.

d.Ne jamais plonger le porte-électrode dans lʼeau pour lerefroidir.

e. Ne jamais toucher simultanément les parties sous tensiondes porte-électrodes connectés à deux machines à soud-er parce que la tension entre les deux pinces peut être letotal de la tension à vide des deux machines.

f. Si on utilise la machine à souder comme une source decourant pour soudage semi-automatique, ces precautionspour le porte-électrode sʼapplicuent aussi au pistolet desoudage.

2. Dans le cas de travail au dessus du niveau du sol, se pro-téger contre les chutes dans le cas ou on recoit un choc. Nejamais enrouler le câble-électrode autour de nʼimporte quellepartie du corps.

3. Un coup dʼarc peut être plus sévère quʼun coup de soliel,donc:

a. Utiliser un bon masque avec un verre filtrant appropriéainsi quʼun verre blanc afin de se protéger les yeux durayonnement de lʼarc et des projections quand on soudeou quand on regarde lʼarc.

b. Porter des vêtements convenables afin de protéger lapeau de soudeur et des aides contre le rayonnement delʻarc.

c. Protéger lʼautre personnel travaillant à proximité ausoudage à lʼaide dʼécrans appropriés et non-inflamma-bles.

4. Des gouttes de laitier en fusion sont émises de lʼarc desoudage. Se protéger avec des vêtements de protectionlibres de lʼhuile, tels que les gants en cuir, chemise épaisse,pantalons sans revers, et chaussures montantes.

5. Toujours porter des lunettes de sécurité dans la zone desoudage. Utiliser des lunettes avec écrans lateraux dans leszones où lʼon pique le laitier.

6. Eloigner les matériaux inflammables ou les recouvrir afin deprévenir tout risque dʼincendie dû aux étincelles.

7. Quand on ne soude pas, poser la pince à une endroit isolé dela masse. Un court-circuit accidental peut provoquer unéchauffement et un risque dʼincendie.

8. Sʼassurer que la masse est connectée le plus prés possiblede la zone de travail quʼil est pratique de le faire. Si on placela masse sur la charpente de la construction ou dʼautresendroits éloignés de la zone de travail, on augmente le risquede voir passer le courant de soudage par les chaines de lev-age, câbles de grue, ou autres circuits. Cela peut provoquerdes risques dʼincendie ou dʼechauffement des chaines et descâbles jusquʼà ce quʼils se rompent.

9. Assurer une ventilation suffisante dans la zone de soudage.Ceci est particuliérement important pour le soudage de tôlesgalvanisées plombées, ou cadmiées ou tout autre métal quiproduit des fumeés toxiques.

10. Ne pas souder en présence de vapeurs de chlore provenantdʼopérations de dégraissage, nettoyage ou pistolage. Lachaleur ou les rayons de lʼarc peuvent réagir avec lesvapeurs du solvant pour produire du phosgéne (gas forte-ment toxique) ou autres produits irritants.

11. Pour obtenir de plus amples renseignements sur la sûreté,voir le code “Code for safety in welding and cutting” CSAStandard W 117.2-1974.

PRÉCAUTIONS DE SÛRETÉ POURLES MACHINES À SOUDER ÀTRANSFORMATEUR ET ÀREDRESSEUR

1. Relier à la terre le chassis du poste conformement au codede lʼélectricité et aux recommendations du fabricant. Le dis-positif de montage ou la piece à souder doit être branché àune bonne mise à la terre.

2. Autant que possible, Iʼinstallation et lʼentretien du posteseront effectués par un électricien qualifié.

3. Avant de faires des travaux à lʼ interieur de poste, ladebrancher à lʼinterrupteur à la boite de fusibles.

4. Garder tous les couvercles et dispositifs de sûreté à leurplace.

INVERTEC V275-S

vv

Thank You for selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product••• as much pride as we have in bringing this product to you!

Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep ithandy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.The level of seriousness to be applied to each is explained below:

WARNINGThis statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.

This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.

CAUTION

Please Examine Carton and Equipment For Damage ImmediatelyWhen this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claimsfor material damaged in shipment must be made by the purchaser against the transportation company at thetime the shipment is received.

Please record your equipment identification information below for future reference. This information can befound on your machine nameplate.

Product _________________________________________________________________________________

Model Number ___________________________________________________________________________

Code Number or Date Code_________________________________________________________________

Serial Number____________________________________________________________________________

Date Purchased___________________________________________________________________________

Where Purchased_________________________________________________________________________

Whenever you request replacement parts or information on this equipment, always supply the information youhave recorded above. The code number is especially important when identifying the correct replacement parts.

On-Line Product Registration- Register your machine with Lincoln Electric either via fax or over the Internet.

• For faxing: Complete the form on the back of the warranty statement included in the literature packetaccompanying this machine and fax the form per the instructions printed on it.

• For On-Line Registration: Go to our WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then“Product Registration”. Please complete the form and submit your registration.

CUSTOMER ASSISTANCE POLICYThe business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip-ment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask LincolnElectric for advice or information about their use of our products. We respond to our customers based on the best information in our posses-sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor-mation or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customerʼs particular purpose,with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating orcorrecting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter anywarranty with respect to the sale of our products.

Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the controlof, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained inapplying these types of fabrication methods and service requirements.

Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.comfor any updated information.

INVERTEC V275-S

vi vi TABLE OF CONTENTSPage

Installation.......................................................................................................................Section ATechnical Specifications.......................................................................................................A-1Safety Precautions. ..............................................................................................................A-2Suitable Location..................................................................................................................A-2

Stacking ........................................................................................................................A-2Tilting.............................................................................................................................A-2High Frequency Protection............................................................................................A-2

Input Connections ................................................................................................................A-2Input Fuse and Supply Wire..........................................................................................A-2Input Supply Connections .............................................................................................A-2Power Input Connections ..............................................................................................A-2

Input Voltage Reconnect Procedure ....................................................................................A-3Output Connections..............................................................................................................A-4

Remote Control Receptacle ..........................................................................................A-4Output Cables ...............................................................................................................A-4Quick Disconnect Plugs ................................................................................................A-4

________________________________________________________________________________

Operation.........................................................................................................................Section BSafety Precautions ...............................................................................................................B-1General Description..............................................................................................................B-1

Operational Features ....................................................................................................B-1Welding Capability ........................................................................................................B-1Limitations .....................................................................................................................B-1

Controls and Settings ....................................................................................................B-2,B-3Constant Current Processes ................................................................................................B-3Parallel Operation.................................................................................................................B-3Overload Protection..............................................................................................................B-3Thermal Protection ...............................................................................................................B-3Fan ......................................................................................................................................B-3Power-Up Sequence ............................................................................................................B-3

________________________________________________________________________________

Accessories ........................................................................................................Section CGeneral Options / Accessories ..............................................................................C-1

Cable Plugs.....................................................................................................C-1Remote Control ............................................................................................................C-1

________________________________________________________________________________

Maintenance........................................................................................................Section DInput Filter Capacitor Discharge Procedure ..........................................................D-1Routine Maintenance.............................................................................................D-2Filter Capacitor Conditioning .................................................................................D-2Location of Maintenance Components ..................................................................D-3

________________________________________________________________________________

Troubleshooting .................................................................................................Section ESafety Precautions.................................................................................................E-1PC Board Troubleshooting Procedures.................................................................E-2Troubleshooting Guide.............................................................................E-3 thru E-7

________________________________________________________________________________

Wiring Diagrams and Dimension Print .............................................................Section F________________________________________________________________________________

Parts Pages ....................................................................................................P-476 Series________________________________________________________________________________

A-1INSTALLATION

INVERTEC V275-S

A-1

Height Width Depth Weight (With Cord)13.6in.(345mm) - Handle Folded Down 20.25 in.(514mm)

9.0 in.(229mm) 54.5lbs. (24.7Kg)16in.(406mm) - Handle Up 21.7 in.(551)-With Cord Strain Relief

PHYSICAL DIMENSIONS

THREE PHASE SINGLE PHASERECOMMENDED MINIMUM INPUT WIRE AND FUSE SIZES

Input Voltage-Hz

208/230-60460/575-60

220-50380/400/415-50

440-50

Fuse Size(Time Delay Fuse)

Amps

6035

603535

Cord Size AWG(mm2)based on a type S, SJ, SJO

or SJT Flexible cordin 30°C Ambient

8(8.4)14(2.5)

8(8.4)12(4)14(2.5)

(1) When operating on these inputs, the line cord may need to be changed

* On 208VAC Single Phase the 35% duty cycle output rating is 275A @ 29V

Technical Specifications - Invertec V275-S INPUT AT RATED OUTPUT - THREE PHASE ONLY

INPUT VOLTS-Hz

208/230/460/575V - 60Hz

220/380/400/415/440 - 50Hz

INPUTCURRENT

AMPS

27/25/13/1134/33/17/1438/37/19/16

25/15/15/14/1332/20/19/18/17

IDLEPOWER

150W Max

IDLEPOWER

150W Max

EFFICIENCY@ RATEDOUTPUT

87%

EFFICIENCY@ RATEDOUTPUT

87%

OUTPUT CONDITIONS

[email protected]%250A@30V. 60%275A@31V. 35%

[email protected]%250A@30V. 35%

INPUT AT RATED OUTPUT - SINGLE PHASE ONLYINPUT VOLTS-Hz

208/230/460/575V - 60Hz

220/380/400/415/440 - 50Hz

INPUTCURRENT

AMPS

49/48/26/2163/62/33/2768/67/38/31

48/32/30/29/2763/42/40/38/36

OUTPUT CONDITIONS

[email protected]%250A@30V. 60%275A@31V.* 35%

[email protected]%250A@30V. 35%

OUTPUT (THREE AND SINGLE PHASE)

Input Voltage-Hz

208-60230-60

460/575-60

220-50380/400/415-50

440-50

Cord Size AWG(mm2)based on a type S, SJ, SJO

or SJT Flexible cordin 30°C Ambient

6(16)1

6 (16)1

10 (6)

6(16)1

8(10)10(6)

Fuse Size(Time Delay Fuse)

Amps

10010060

1006060

TEMPERATURE RANGESOPERATING TEMPERATURE RANGE

-20°C to +40°CSTORAGE TEMPERATURE RANGE

-40°C to +40°C

WELDING NO LOAD CURRENT RANGE VOLTAGE

5-275 Amps 70 VDC

A-2INSTALLATION

INVERTEC V275-S

A-2

Read this entire installation section before youstart installation.

SAFETY PRECAUTIONS

ELECTRIC SHOCK can kill.• Have an electrician install and

service this equipment.

• Turn the input power off at thefuse box before working onequipment.

• Do not touch electrically hot parts.

• Be sure to discharge capacitors with the proce-dure outlined in the Maintenance Section ofthis manual before working in that area of theequipment.

---------------------------------------------------------------------

SELECT SUITABLE LOCATIONThe Invertec V275-S will operate in harsh environ-ments. Even so, it is important that simple preventa-tive measures are followed in order to assure long lifeand reliable operation.

• The machine must be located where there is free cir-culation of clean air such that air movement in theback and out the front will not be restricted.

• Dirt and dust that can be drawn into the machineshould be kept to a minimum. Failure to observethese precautions can result in excessive operatingtemperatures and nuisance shutdown.

• Keep machine dry. Shelter from rain and snow. Donot place on wet ground or in puddles.

• DO NOT MOUNT OVER COMBUSTIBLE SURFACES.

Where there is a combustible surface directlyunder stationary or fixed electrical equipment,that surface shall be covered with a steel plate atleast .06”(1.6mm) thick, which shall extend notless than 5.90”(150mm) beyond the equipment onall sides.-----------------------------------------------------------------------STACKING

V275-Sʼs cannot be stacked.

TILTINGPlace the machine directly on a secure, level surfaceor on a recommended undercarriage. The machinemay topple over if this procedure is not followed.

HIGH FREQUENCY PROTECTIONLocate the Invertec V275-S away from radio con-trolled machinery.

The normal operation of the Invertec V275-S mayadversely affect the operation of RF controlledequipment, which may result in bodily injury ordamage to the equipment.-----------------------------------------------------------------------

INPUT CONNECTIONS

The Invertec V275-S should be connected only by aqualified electrician. Installation should be made inaccordance with all local and national electric codesand the information detailed below.

INPUT FUSE AND SUPPLY WIRERefer to the Technical Specifications page at thebeginning of this chapter for the proper fuse sizes andsupply cable sizes.

• Fuse the input circuit with recommended super lagfuses or delay type circuit breakers.

• Install the proper fuse in the fuse holder in the maindisconnect panel.

INPUT SUPPLY CONNECTIONSBe sure the voltage phase and frequency of the inputpower is as specified on the rating plate, located onthe rear of the machine.

Supply line entry provision is in the case rear panel.

POWER INPUT CONNECTION A 10 ft. power cord is provided and wired into themachine. Follow the power cord connection instruc-tions. Incorrect connection may result in equipmentdamage.

Single Phase Input: Connect green lead to groundper National Electrical Code. Connect black and whiteor brown leads to power. Wrap red lead with tape toprovide 600V insulation.

Three Phase Input: Connect green lead to groundper National Electrical Code. Connect black, red andwhite or brown leads to power.

WARNING

CAUTION

CAUTION

A-3INSTALLATION

INVERTEC V275-S

A-3

INPUT VOLTAGE RECONNECTPROCEDURE

When received directly from the factory, units are con-nected for, 460 VAC. If 460 VAC is the desired input,then the machine may be connected to the power sys-tem without any setup required inside the reconnectdoor. For other voltages refer to the instructions locat-ed on the Reconnect Panel Access Door or follow theinstructions below.

Failure to follow these instructions can causeimmediate failure of components within thewelder.------------------------------------------------------------------------

1. Open the access door on the left side of themachine.

2. For 208-230: Position the large switch to 208-230.For 380-575: Position the large switch to 380-575.

3. Move the “A” lead to the appropriate terminal.Refer to figure A.1 below.

THE L INCOLN ELECTR IC CO . CLEVELAND , OH IO U .S .A .

..

. .Do not touch electrically live parts.Only qualified persons should install,use or service this equipment.

RECONNECT PROCEDURE1. BE SURE POWER SWITCH IS OFF.

208V220-230V380-415V440-460V 575V 'A'

INPUT VOLTAGE RANGE. removed.Do not operate with wraparoundinspecting or servicing machine.Disconnect input power before

IF MACHINE CEASES TO OPERATE (NO METER, NO FAN)

2. CONNECT LEAD 'A' TO DESIRED

3. POSITION SWITCH TO DESIRED INPUT VOLTAGE RANGE.

S21230-

AND THERE IS NO OTHER KNOWN FAILURE: CHECK FUSE;

VOLTAGE=380-575V VOLTAGE=208-230V

REPLACE WITH SPECIFIED FUSE.

A

THE L INCOLN ELECTR IC CO . CLEVELAND , OH IO U .S .A .

.

.

.

.

Do not touch electrically live parts.

Only qualified persons should install,use or service this equipment.

RECONNECT PROCEDURE

1. BE SURE POWER SWITCH IS OFF.

208V

220-230V

380-415V

440-460V

575V

'A'

INPUT VOLTAGE RANGE. removed.Do not operate with wraparound

inspecting or servicing machine.Disconnect input power before

IF MACHINE CEASES TO OPERATE (NO METER, NO FAN)

2. CONNECT LEAD 'A' TO DESIRED

3. POSITION SWITCH TO DESIRED INPUT VOLTAGE RANGE.

S21230-

AND THERE IS NO OTHER KNOWN FAILURE: CHECK FUSE;

VOLTAGE=380-575V VOLTAGE=208-230V

REPLACE WITH SPECIFIED FUSE.

A

Figure A.1 Input Voltage Reconnect Instructions

CAUTION

A-4INSTALLATION

INVERTEC V275-S

A-4

OUTPUT CONNECTIONS

Refer to figure A.2 for the location of the 6-PinRemote Receptacle and the Output Terminals.

FIGURE A.2 OUTPUT CONNECTIONS

REMOTE CONTROL RECEPTACLE

Remote control (K857), Hand amptrol (K963) andFoot amptrol (K870) connect directly to 6-pin amphe-nol on the front of the unit.

OUTPUT CABLES

Select the output cable size based on Table A.1.TABLE A.1

Cable Sizes for Combined Length of Electrode andWork Cable ( Copper Cable Rated at 75°C).

Length Cable Sizeup to 150 ft.(46m) 1/0 (50mm2)up to 250 ft.(72m) 2/0 (70mm2)

QUICK DISCONNECT PLUGS

A quick disconnect system is used for the weldingcable connections. The welding plug included with themachine is designed to accept a welding cable size of1/0 to 2/0.

1. Remove 1 in. (25mm) of welding cable insulation.

2. Slide rubber boot onto cable end. The boot endmay be trimmed to match the cable diameter.Soap or other lubricant will help to slide the bootover the cable.

3. Slide the copper tube into the brass plug.

4. Insert cable into copper tube.

5. Tighten set screw to collapse copper tube. Screwmust apply pressure against welding cable. Thetop of the set screw will be well below the surfaceof the brass plug after tightening.

6. Slide rubber boot over brass plug. The rubberboot must be positioned to completely cover allelectrical surfaces after the plug is locked into thereceptacle.

25 mm

1 in.

WELDING CABLE

BOOT

TRIM

SET SCREW

BRASS PLUGCOPPER TUBE

REMOTE

ON

OFF

OUTPUT TERMINALS

6-PIN REMOTE RECEPTACLE

B-1OPERATIONB-1

GENERAL DESCRIPTION

The Invertec V275-S is a 275 amp arc welding powersource that utilizes single or three phase input power,to produce constant current output. The weldingresponse of this Invertec has been optimized for stick(SMAW) and TIG (GTAW).

OPERATIONAL FEATURES

The Invertec V275-S provides continuous total rangeoutput current adjustment, selectable welding modesand local or remote output control. Welding character-istics can be controlled via an arc force control.Additionally, starting characteristics can be adjustedvia a “hot start” control.

WELDING CAPABILITY

The Invertec V275-S is rated at 275 amps, 35% dutycycle (based on a 10 minute cycle). It is also rated at200 amps, 100% duty cycle, and 250 amps, 60% dutycycle.

LIMITATIONS

The V275-S is not recommended for pipe thawing.

INVERTEC V275-S

Read and understand this entire section beforeoperating your machine.

SAFETY PRECAUTIONS

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts suchas output terminals or internal wiring.

• Insulate yourself from the work andground.

• Always wear dry insulating gloves.____________________________________

____________________________________

____________________________________

____________________________________

Only qualified personnel should operate this equip-ment. Observe all safety information throughout thismanual.

WARNING

FUMES AND GASEScan be dangerous.

• Keep your head out of fumes.

• Use ventilation or exhaust toremove fumes from breathingzone.

ARC RAYScan burn.

• Wear eye, ear and bodyprotection.

WELDING, CUTTING and GOUGING SPARKScan cause fire or explosion

• Keep flammable material away.

• Do not weld, cut or gouge oncontainers that have held com-

bustibles.

B-2OPERATIONB-2

1. POWER SWITCH - Place the lever in the “ON”position to energize the machine. When the power is onthe output will be energized in STICK (SMAW) mode andTIG (GTAW) if the remote is set to local control. Atpower up the thermal Light and Fan will turn on forapproximately 3 seconds.

2. OUTPUT CONTROL - This controls the outputcurrent. Control is provided over the entire output rangeof the power source with (1) turn of the control knob. Thiscontrol may be adjusted while under load to changepower source output. When using remote control thisfunction becomes the limit setting.

3. LOCAL/REMOTE SWITCH - Place in the“LOCAL” position to allow output adjustment at themachine. Place in the “REMOTE” position to allow outputadjustment at remote pot or amptrol. In Remote, themachine output control pot is the limit setting for remotecontrol.

4. MODE SWITCHCC -Stick (SMAW) Use this mode for all stick welding.Output energized when machine is on.

TIG (GTAW) Optimized for touch start use. Short circuitcurrent is limited to approximately 20 amps to aid in touchstarting.

In TIG (GTAW) mode, the Local/Remote switch also con-trols if the output is energized.

MODE LOCAL/REMOTE SWITCH OUTPUT

GTAW LOCAL ENERGIZED

GTAW REMOTE CONTROL BYREMOTE ARCSWITCH

SMAW LOCAL & REMOTE ENERGIZED

5. HOT START - Controls the amount of starting ener-gy in CC Stick (SMAW). The Hot Start can be eitherturned on or off. When on, it provides a striking current at160% of the set current or 275A whichever is larger thenquickly reverts to the set current in 0.4 second.

INVERTEC V275-S

CONTROLS AND SETTINGS

All operator controls and adjustments are located on the case front of the V275-S. Refer to Figure B.1 and corre-sponding explanations.

FIGURE B.1 — CASE FRONT CONTROLS.

OFF

LOCAL

REMOTE

REMOTE

ARC FORCE HOT START

-10 +10

OUTPUT

CC STICK

TIG

ON

ON

OFF

OFFOFF

1

2

3

4

9

7

6

10

8

5

B-3OPERATIONB-3

6. ARC FORCE - This control functions in CC Stick SMAWmodes to adjust the Arc Force. The arc is soft at the mini-mum settings and more forceful or driving at the maximumsettings. Higher spatter levels may be present at the maxi-mum settings. Full range is from -10(Soft) to +10(Crisp)

7. OUTPUT TERMINALS - These quick disconnect termi-nals provide connection points for the electrode and workcables. Refer to Output Connection in the Installation chap-ter for proper cable sizes. For positive polarity welding con-nect the electrode cable to the positive terminal and the workcable to the negative terminal. To weld negative polarityreverse the electrode and work cables.

8. THERMAL SHUTDOWN INDICATOR - This light willilluminate if an internal thermostat has been activated.Machine output will return after the internal componentshave returned to a normal operating temperature. SeeThermal Protection later in this Operation chapter.

9. 6-PIN REMOTE RECEPTACLE (Refer to Output Connection in the Installation chapter.)

10. POWER LIGHT - This Light will illuminate when thepower switch is in the “ON” position.

CONSTANT CURRENT PROCESSES

MANUAL ARC WELDING (STICK)*The Invertec may be utilized as a manual DC arc welder withthe electrode cable, work cable, and electrode holder being theonly equipment required.

AIR CARBON ARC CUTTING*Air carbon arc cutting may be performed with the Invertec withinits output rating using 3/16” diameter carbon rods. Outputcables, an air carbon arc electrode cable assembly, and asource of compressed air are required.

TIG WELDING*The Invertec V275-S is capable of touch start TIG welding. Anelectrode cable, work cable, TIG torch, and gas supply with reg-ulator are required. Refer to Accessories section of this manu-al.Touch starting is done as follows:

1. Place the shield cup edge on the work piece.2. Rock the tungsten down to touch.3. Trigger the output, if using remote control.4. Gently rock back the tungsten from the workpiece.

Note: The short circuit current is limited to 20 amps to aid intouch starting. Panel output control becomes the currentlimit setting when in remote control.

* Note: Operating this machine with the output control set tomaximum may cause the machine to phase back and the arcto go out. This occurs because the welding current exceeded300 amps and the machineʼs protection circuitry activated.Turn the output control down to correct this condition.

PARALLEL OPERATIONThe Invertecʼs are operable in parallel. For best results, the cur-rents of each machine should be reasonably well shared. As anexample, with two machines set up in parallel for a 300 ampprocedure, each machine should be set to deliver approximately150 amps, not 200 amps from one and 100 amps from theother. This will minimize nuisance feedback conditions. In gen-eral, more than two machines in parallel will not be effective dueto the voltage requirements of procedures in that power range.

To set machine outputs, start with output control pots and arcforce pots in identical positions. Adjust outputs and arc forces tomaintain current sharing while establishing the proper outputcurrent.

OVERLOAD PROTECTIONThe machine is electrically protected from producing high outputcurrents. Should the output current exceed 300A, an electronicprotection circuit will reduce the current to less than 200A. Themachine will continue to produce this low current until the pro-tection circuit is reset. Reset occurs when the output load isremoved.

Note: When TIG welding with the Output Knob at or above 275Amps the Arc may go out.

THERMAL PROTECTIONThermostats protect the machine from excessive operating tem-peratures. Excessive temperatures may be caused by a lack ofcooling air or operating the machine beyond the duty cycle andoutput rating. If excessive operating temperature should occur,the thermostats will prevent output voltage or current.

Thermostats are self-resetting once the machine cools suffi-ciently.

FANThe cooling fan on the V275-S operates once 15 amps of weld-ing current is drawn and for 7 minutes after the output currenthas stopped flowing.

The fan will also run anytime the machine has over heated.

POWER-UP SEQUENCEAt power up the thermal light (and Power light on codes 11164and above) turns on and the fans run for approximately 3 sec-onds. This is the pre-charge time for the main capacitors. Afterthis time the fans and thermal light turn off and the pre-chargerelay closes to apply full line power to the capacitors. At thistime the machine is ready to weld.

INVERTEC V275-S

C-1ACCESSORIESC-1

OPTIONS / ACCESSORIES

REMOTE OUTPUT CONTROL - Consists of a controlbox with choice of two cable lengths. Permits remoteadjustment of output, 6 pin connection.Order K857 for 25 ft. (7.6m) or K857-1 for 100 ft. (30.5m)

Twist-Mate Cable Plug - For connecting weldingcable to output terminal receptacles. For 1/0-2/0 (50-70mm2) cable. Order K852-70

Twist-Mate Cable Plug - For connecting weldingcable to output terminal receptacles. For 2/0-3/0 (70-95mm2) cable.Order K852-95

Twist-Mate Cable Receptacle - For connecting weld-ing cable to Twist-Mate cable plug. For 1/0-2/0 (50-70mm2) cable.Order K1759-70

Twist-Mate Cable Receptacle - For connecting weld-ing cable to Twist-Mate cable plug. For 2/0-3/0 (70-95mm2) cable.Order K1759-95

Twist-Mate Plugs and Receptacles are not usedwith Code 11446.

TIG OPTIONS

Twist-Mate Torch Adapter - For connection of PTA-9or PTA-17V torches (1 piece cable) to power sourceswithout as passing through the Twist-Mate connec-tion.Order K960-1

Foot Amptrol™ - Varies current while welding formaking critical TIG welds and crater filling. Depresspedal to increase current. Depressing pedal fullyachieves maximum set current. Fully raising thepedal finishes the weld and starts the after flow cycle.Includes 25 ft. (7.6m) control cable.Order K870

TIG OPTIONS

Hand Amptrol - may be used in place of the FootAmptrol. Fastens to the torch for convenient thumbcontrol. Comes with a 25 ft. (7.6m) cable. Order K963-1 (for smaller handle 9, 17 or 20 seriestorches.)Order K963-2 (for larger handle 18 or 26 series torch-es.)

STICK OPTIONS

Accessory Kit - Complete kit for stick welding.Includes 30 ft. (9.1m) #3 electrode cable, 25 ft. (7.6m)#3 work cable, headshield, work clamp and electrodeholder.Order K704 for 400 AmpsOrder K875 for 200 Amps.

K2269-1, V275-S Includes:

• V-275-S• Twist-Mate Cable Plugs (K852-70), qty 2

V275-S 4-Pack and 8-Pack Inverter Racks Includes:

• Inverter Rack

• An ideal system to group several inverter powersources in an industrially designed portable pack-age. Entire system meets National Electric Code(NEC) standards.

• Includes 4 or 8 Invertec V275-S rack model powersources. This special rack version has all the samefeatures as the standard V275-S.

INVERTEC V275-S

D-1MAINTENANCED-1

INPUT FILTER CAPACITORDISCHARGE PROCEDURE

1. Turn off input power or disconnect input powerlines.

2. Remove the 5/16" hex head screws from the sideand top of the machine and remove wrap-aroundmachine cover.

3. Be careful not to make contact with the capacitorterminals that are located in the top and bottom ofthe Power Board.

4. Obtain a high resistance and high wattage resistor(25-1000 ohms and 25 watts minimum). This resis-tor is not supplied with machine. NEVER USE A SHORTING STRAP FOR THIS PROCEDURE.

5. Locate the four capacitor terminals (large hex headcap screws) shown in Figure D.1. One pair at thetop and one pair at the bottom of the Power Board.

6. Use electrically insulated gloves and insulated pli-ers. Hold body of the resistor and connect resistorleads across the two capacitor terminals. Holdresistor in place for 10 seconds. DO NOT TOUCHCAPACITOR TERMINALS WITH YOUR BAREHANDS.

7. Repeat discharge procedure for the capacitor onother two terminals.

8. Check voltage across terminals of all capacitorswith a DC voltmeter. Polarity of capacitor terminalsis marked on PC board above terminals. Voltageshould be zero. If any voltage remains, repeat thiscapacitor discharge procedure.

INVERTEC V275-S

ELECTRIC SHOCK can kill.• Have an electrician install and service

this equipment.• Turn the input power off at the fuse

box before working on equipment.• Do not touch electrically hot parts.• Prior to Performing preventative main-

tenance, perform the following capaci-tor discharge procedure to avoid elec-tric shock.

---------------------------------------------------------------------

WARNING

UPPER CAPACITOR TERMINALS

LOWER CAPACITOR TERMINALS

INSULATEDGLOVES

INSULATEDPLIERS

POWERRESISTOR

POWERBOARD

RIGHT SIDE OF MACHINE

FIGURE D.1 — LOCATION OF INPUT FILTER CAPACITOR TERMINALS.

D-2MAINTENANCED-2

ROUTINE MAINTENANCE

1. Perform the following preventive maintenance pro-cedures at least once every six months. It is goodpractice to keep a preventive maintenance record;a record tag attached to the machine works best.

2. Remove the machine wrap-around cover and per-form the input filter capacitor discharge procedure(detail at the beginning of this chapter).

3. Keeping the machine clean will result in cooleroperation and higher reliability. Be sure to clean thefollowing areas with a low pressure air stream. Seefigure D.2 for component locations.

•Power and control printed circuit boards

•Power switch

•Main transformer

•Input rectifier

•Heat sink fins

•Input Filter Capacitors

•Output Terminals

4. Examine capacitors for leakage or oozing. Replaceif needed.

5. Examine the sheet metal case for dents or break-age. Repair the case as required. Keep the case ingood condition to ensure that high voltage parts areprotected and correct spacings are maintained. Allexternal sheet metal screws must be in place toassure case strength and electrical ground continu-ity.

6. Check electrical ground continuity. Using an ohm-meter, measure resistance between either outputterminal and an unpainted surface of the machinecase. (See Figure D.2 for locations.) Meter readingshould be 500,000 ohms or more. If meter readingis less than 500,000 ohms, check for electrical com-ponents that are not properly insulated from thecase. Correct insulation if needed.

7. Replace machine cover and screws.

INVERTEC V275-S

D-3MAINTENANCED-3

INVERTEC V275-S

FIGURE D.2 — LOCATION OF MAINTENANCE COMPONENTS.

SWITCH BOARD &HEAT SINK ASSEMBLY

CONTROL PC BOARD

MAIN TRANSFORMER ASSEMBLY

CHOKE ASSEMBLY

OUTPUT TERMINALSPOWER SWITCH

CENTER ASSEMBLY

INPUTRECTIFIER

COOLING FANS

CASE BACK ASSEMBLY

CASE FRONT ASSEMBLY

WRAP-AROUND

BASE

OUTPUTRECTIFIERASSEMBLY

E-1TROUBLESHOOTING E-1

INVERTEC V275-S

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

CAUTION

This Troubleshooting Guide is provided to help youlocate and repair possible machine malfunctions.Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).Look under the column labeled “PROBLEM (SYMP-TOMS)”. This column describes possible symptomsthat the machine may exhibit. Find the listing thatbest describes the symptom that the machine isexhibiting.

Step 2. POSSIBLE CAUSE.The second column labeled “POSSIBLE CAUSE” liststhe obvious external possibilities that may contributeto the machine symptom.

Step 3. RECOMMENDED COURSE OF ACTIONThis column provides a course of action for thePossible Cause, generally it states to contact yourlocal Lincoln Authorized Field Service Facility.

If you do not understand or are unable to perform theRecommended Course of Action safely, contact yourlocal Lincoln Authorized Field Service Facility.

HOW TO USE TROUBLESHOOTING GUIDE

Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel.Unauthorized repairs performed on this equipment may result in danger to the technician andmachine operator and will invalidate your factory warranty. For your safety and to avoid ElectricalShock, please observe all safety notes and precautions detailed throughout this manual.

__________________________________________________________________________

WARNING

INVERTEC V275-S

E-2TROUBLESHOOTING & REPAIRE-2

_______________________________CAUTION: Sometimes machine failuresappear to be due to PC board failures. Theseproblems can sometimes be traced to poorelectrical connections. To avoid problemswhen troubleshooting and replacing PCboards, please use the following procedure:

1. Determine to the best of your technicalability that the PC board is the most likelycomponent causing the failure symptom.

2. Check for loose connections at the PCboard to assure that the PC board is prop-erly connected.

3. If the problem persists, replace the sus-pect PC board using standard practices toavoid static electrical damage and electri-cal shock. Read the warning inside thestatic resistant bag and perform the follow-ing procedures:

P.C. Board can be dam-aged by static electricity.

- Remove your bodyʼs stat-ic charge before openingthe static-shielding bag.Wear an anti-static wriststrap. For safety, use a 1Meg ohm resistive cordconnected to a groundedpart of the equipmentframe.

- If you donʼt have a wriststrap, touch an unpainted,grounded, part of the

equipment frame. Keep touching the frame toprevent static build-up. Be sure not to touchany electrically live parts at the same time.

- Tools which come in contact with the P.C.Board must be either conductive, anti-static orstatic-dissipate.

ELECTRIC SHOCK can kill.Have an electrician installand service this equip-ment. Turn the input powerOFF at the fuse box beforeworking on equipment. Donot touch electrically hotparts.

- Remove the P.C. Board from the static-shielding bag and place it directly into theequipment. Donʼt set the P.C. Board on ornear paper, plastic or cloth which could havea static charge. If the P.C. Board canʼt beinstalled immediately, put it back in the static-shielding bag.

- If the P.C. Board uses protective shortingjumpers, donʼt remove them until installationis complete.

- If you return a P.C. Board to The LincolnElectric Company for credit, it must be in thestatic-shielding bag. This will prevent furtherdamage and allow proper failure analysis.

4. Test the machine to determine if the fail-ure symptom has been corrected by thereplacement PC board.

NOTE: It is desirable to have a spare (knowngood) PC board available for PC board trou-bleshooting.

NOTE: Allow the machine to heat up so thatall electrical components can reach their oper-ating temperature.

5. Remove the replacement PC board andsubstitute it with the original PC board torecreate the original problem.

a. If the original problem does not reap-pear by substituting the originalboard, then the PC board was not theproblem. Continue to look for badconnections in the control wiring har-ness, junction blocks, and terminalstrips.

b. If the original problem is recreated bythe substitution of the original board,then the PC board was the problem.Reinstall the replacement PC boardand test the machine.

6. Always indicate that this procedure wasfollowed when warranty reports are to besubmitted.

NOTE: Following this procedure and writing on thewarranty report, “INSTALLED AND SWITCHED PCBOARDS TO VERIFY PROBLEM,” will help avoiddenial of legitimate PC board warranty claims.

PC BOARD TROUBLESHOOTING PROCEDURES

WARNING

ATTENTIONStatic-SensitiveDevicesHandle only atStatic-SafeWorkstations

Reusable ContainerDo Not Destroy


INVERTEC V275-S

Observe all Safety Guidelines detailed throughout this manual

OUTPUT PROBLEMS

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE

RECOMMENDEDCOURSE OF ACTION

Major physical or electrical damageis observed when cover wrap-aroundis removed.

The machine is dead - no output.

No output but the fan operates nor-mally.

1. The input power switch must bein the ON position.

2. Make sure the input voltage iscorrect for the machine.

3. If the machine is set for single-phase operation, inspect toassure that the WHITE andBLACK leads are connectedproperly and the RED lead is notconnected and is insulated.

4. Check that the input voltage set-up switch and jumper “A” (thereconnect auxiliary jumper) are inthe proper position for the inputvoltage being applied. Refer toInput Voltage ReconnectProcedure in the InstallationChapter.

5. Check continuity of the 0.6-ampslow blow fuse located on thereconnect panel.

1. If the machine has not been usedfor a long time and is connectedfor 380 VAC or higher, thecapacitors may need “condition-ing”. See Input Filter CapacitorConditioning.

2. The machine may be overheated.Check the thermal indicator light.Wait for the machine to cool andthe thermostats to reset.

If all recommended possible areas ofmisadjustment have been checkedand the problem persists, Contactyour local Lincoln Authorized FieldService Facility.

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con-tact your local authorized field service facility for technical troubleshooting assistance before you proceed.

CAUTION


INVERTEC V275-S


OUTPUT PROBLEMS

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE


Output turns on momentarily, thenswitches off and repeats cycle.

Remote output control not functioning. The machine operatesnormally on LOCAL control.

1. Check the input voltages andreconnection procedures. Makesure the input voltage is correctfor the machine. See InputVoltage Reconnect Procedure.

2. Check or replace remote controldevice. (If used)

1. Make sure the Local/Remoteswitch (S3) is in the REMOTEposition.

2. The remote control device maybe faulty. Replace.

3. The Local/Remote switch mustbe in the LOCAL position unlessa remote control device isattached to the remotereceptacle.



CAUTION


INVERTEC V275-S


OUTPUT PROBLEMS

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE


No output - Main input fuses open,indicating excessive current draw.

The machine operates normallywhen connected for 200 - 230VACinput. There is no output when themachine is connected to 380VAC orhigher.

1. Inspect input leads for possibleshorts or grounds or mis-connec-tions.

2. Install new fuses and reapplypower. If fuses open again, con-sult a Lincoln Authorized FieldService Facility.

1. Check the input voltage and inputvoltage reconnect procedures.See Installation Section of thismanual.



CAUTION


INVERTEC V275-S


OUTPUT PROBLEMS

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE


The machine will not produce morethan 200 amps.

1. This may be normal operation. Ifthe output current exceeds 300amps, an electronic protectioncircuit will reduce the current toless than 200 amps. Themachine will continue to producethis low current unti l theprotection circuit is reset. Resetoccurs when the output load isremoved.

2. Check the input voltage and inputvoltage reconnect procedures.See Input Voltage ReconnectProcedure.

3. Check for loose or faulty weldingcables.



CAUTION


INVERTEC V275-S


WELDING PROBLEMS

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE


Poor welding, weld settings drift, oroutput power is low.

Poor stick electrode welding performance. The arc pops out.

The thermal light and fan keep turn-ing on and off.

1. Make sure the machine settingsare correct for the weld processbeing used.

2. Check machine performance onLOCAL control. If OK then theremote control device may befaulty. Check or replace.

3. Check the input voltages andinput voltage reconnectprocedures. See InstallationSection of this manual.



2. Is the electrode DRY? Try weld-ing with another electrode from adifferent container. Make sureyou have the correct electrode forthe application.

3. Make sure the machine settingsare correct for the weld processbeing used.

1. Check the input voltage section.

2. Check for blockage of vents,which restricts air flow into or outof the machine.



CAUTION

F-1DIAGRAMSF-1

INVERTEC V275-S

NO

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diag

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num

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WIRING DIAGRAM- CODES: 10993, 11001

F-2ELECTRICAL DIAGRAMSF-2

INVERTEC V275-S

NO

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is fo

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. It

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num

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WIRING DIAGRAM- CODES: 11164, 11165, 11224, 11225, 11446

F-3ELECTRICAL DIAGRAMSF-3

INVERTEC V275-S

NO

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his

diag

ram

is fo

r re

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. It

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WIRING DIAGRAM- CODES:11267, 11268

F-4DIAGRAMSF-4

INVERTEC V275-S

L119

81A.0

2

9.00

11.8

5

20.2

5

3.17

MAX

.79

MIN

.88

.25

7.00

16.8

42.

08

4.30

MAX

REC

ON

NEC

T D

OO

RO

PEN

1.25

O

.93

O

15.8

9

.35

TYP.

1.44

DIM

EN

SIO

N P

RIN

T

NOTES

INVERTEC V275-S

WARNING

AVISO DEPRECAUCION

ATTENTION

WARNUNG

ATENÇÃO

Spanish

French

German

Portuguese

Japanese

Chinese

Korean

Arabic

READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THECONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DEESTE EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SUSUPERVISOR.

LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENTET LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTREEMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRO-DENEINSATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERSSIND EBENFALLS ZU BEACHTEN.

• Do not touch electrically live parts orelectrode with skin or wet clothing.

• Insulate yourself from work andground.

• No toque las partes o los electrodosbajo carga con la piel o ropa moja-da.

• Aislese del trabajo y de la tierra.

• Ne laissez ni la peau ni des vête-ments mouillés entrer en contactavec des pièces sous tension.

• Isolez-vous du travail et de la terre.

• Berühren Sie keine stromführendenTeile oder Elektroden mit IhremKörper oder feuchter Kleidung!

• Isolieren Sie sich von denElektroden und dem Erdboden!

• Não toque partes elétricas e electro-dos com a pele ou roupa molhada.

• Isole-se da peça e terra.

• Keep flammable materials away.

• Mantenga el material combustiblefuera del área de trabajo.

• Gardez à l’écart de tout matérielinflammable.

• Entfernen Sie brennbarres Material!

• Mantenha inflamáveis bem guarda-dos.

• Wear eye, ear and body protection.

• Protéjase los ojos, los oídos y elcuerpo.

• Protégez vos yeux, vos oreilles etvotre corps.

• Tragen Sie Augen-, Ohren- und Kör-perschutz!

• Use proteção para a vista, ouvido ecorpo.

WARNING

AVISO DEPRECAUCION

ATTENTION

WARNUNG

ATENÇÃO

Spanish

French

German

Portuguese

Japanese

Chinese

Korean

Arabic

LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTESDE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.

• Keep your head out of fumes.• Use ventilation or exhaust to

remove fumes from breathing zone.

• Los humos fuera de la zona de res-piración.

• Mantenga la cabeza fuera de loshumos. Utilice ventilación oaspiración para gases.

• Gardez la tête à l’écart des fumées.• Utilisez un ventilateur ou un aspira-

teur pour ôter les fumées des zonesde travail.

• Vermeiden Sie das Einatmen vonSchweibrauch!

• Sorgen Sie für gute Be- undEntlüftung des Arbeitsplatzes!

• Mantenha seu rosto da fumaça.• Use ventilação e exhaustão para

remover fumo da zona respiratória.

• Turn power off before servicing.

• Desconectar el cable de ali-mentación de poder de la máquinaantes de iniciar cualquier servicio.

• Débranchez le courant avant l’entre-tien.

• Strom vor Wartungsarbeitenabschalten! (Netzstrom völlig öffnen;Maschine anhalten!)

• Não opere com as tampas removidas.• Desligue a corrente antes de fazer

serviço.• Não toque as partes elétricas nuas.

• Do not operate with panel open orguards off.

• No operar con panel abierto oguardas quitadas.

• N’opérez pas avec les panneauxouverts ou avec les dispositifs deprotection enlevés.

• Anlage nie ohne Schutzgehäuseoder Innenschutzverkleidung inBetrieb setzen!

• Mantenha-se afastado das partesmoventes.

• Não opere com os paineis abertosou guardas removidas.

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

• World's Leader in Welding and Cutting Products •

Documents

INVERTEC V275S - Aventa · INVERTEC V275S MANUAL MIG MAG · TIG · ARCO SUBMERSO · MULTIPROCESSO · RETIFICADORAS CORTE PLASMA INVERSORAS · ELETRODO · GERADORES DE ENERGIA · ROBÔS