Inverec V350-PRO Operators Manual

INVERTEC® V350-PRO (CE)

OPERATOR’S MANUAL

For use with machines Code; 10875, 11483,11562

IM732-BJune, 2009

Safety Depends on YouLincoln arc welding and cuttingequipment is designed and builtwith safety in mind. However, youroverall safety can be increased byproper installation ... and thought-ful operation on your part. DONOT INSTALL, OPERATE ORREPAIR THIS EQUIPMENTWITHOUT READING THISMANUAL AND THE SAFETYPRECAUTIONS CONTAINEDTHROUGHOUT. And, mostimportantly, think before you actand be careful.

WARNING

REMOTE

POWER

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V VOLTS

WELD TERMINALS

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OUTPUTLINCOLNELECTRIC

INVERTEC V350-PRO

WARNINGWARNING

AVISO DEPRECAUCION

ATTENTION

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• 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 •

ISO/IEC 60974-1IP23S

Copyright © Lincoln Global Inc.

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 fumesoutdoors.

____________________________________________________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

Mar ‘95

ELECTRIC ANDMAGNETIC FIELDSmay be dangerous

2.a. Electric current flowing through any conductor causeslocalized Electric and Magnetic Fields (EMF). Weldingcurrent creates EMF fields around welding cables andwelding 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 rightside, 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 WARNINGSDiesel 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 andACGIH 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.

Jan ‘09

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.

Jan ‘09

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

ivSAFETYiv

Mar. ‘93

PRÉCAUTIONS DE SÛRETÉPour votre propre protection lire et observer toutes les instructionset les précautions de sûreté specifiques qui parraissent dans cemanuel aussi bien que les précautions de sûreté générales suiv-antes:

Sûreté Pour Soudage A L’Arc1. Protegez-vous contre la secousse électrique:

a. Les circuits à l’électrode 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 s’isoler de la masse quand onsoude dans des endroits humides, ou sur un planchermetallique ou des grilles metalliques, principalement dansles positions assis ou couché pour lesquelles une grandepartie du corps peut être en contact avec la masse.

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 l’eau pour lerefroidir.

e. Ne jamais toucher simultanément les parties sous tensiondes porte-électrodes connectés à deux machines à souderparce 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 s’applicuent aussi au pistolet desoudage.

2. Dans le cas de travail au dessus du niveau du sol, se protégercontre les chutes dans le cas ou on recoit un choc. Ne jamaisenrouler le câble-électrode autour de n’importe quelle partiedu corps.

3. Un coup d’arc peut être plus sévère qu’un coup de soliel,donc:

a. Utiliser un bon masque avec un verre filtrant appropriéainsi qu’un verre blanc afin de se protéger les yeux du ray-onnement de l’arc et des projections quand on soude ouquand on regarde l’arc.

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

c. Protéger l’autre personnel travaillant à proximité ausoudage à l’aide d’écrans appropriés et non-inflammables.

4. Des gouttes de laitier en fusion sont émises de l’arc desoudage. Se protéger avec des vêtements de protection libresde l’huile, tels que les gants en cuir, chemise épaisse, pan-talons 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 l’on pique le laitier.

6. Eloigner les matériaux inflammables ou les recouvrir afin deprévenir tout risque d’incendie 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 d’incendie.

8. S’assurer que la masse est connectée le plus prés possiblede la zone de travail qu’il est pratique de le faire. Si on placela masse sur la charpente de la construction ou d’autresendroits 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 d’incendie ou d’echauffement des chaines et descâbles jusqu’à ce qu’ils 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 provenantd’opérations de dégraissage, nettoyage ou pistolage. Lachaleur ou les rayons de l’arc peuvent réagir avec les vapeursdu solvant pour produire du phosgéne (gas fortement 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 code del’électricité et aux recommendations du fabricant. Le dispositifde montage ou la piece à souder doit être branché à unebonne mise à la terre.

2. Autant que possible, I’installation et l’entretien du poste seronteffectués par un électricien qualifié.

3. Avant de faires des travaux à l’interieur de poste, la debranch-er à l’interrupteur à la boite de fusibles.

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

vSAFETYv


Electromagnetic Compatibility (EMC)

ConformanceProducts displaying the CE mark are in conformity with European Community Council Directive of 3 May1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility(89/336/EEC). It was manufactured in conformity with a national standard that implements a harmonizedstandard: EN 60974-10 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding Equipment.It is for use with other Lincoln Electric equipment. It is designed for industrial and professional use.

IntroductionAll electrical equipment generates small amounts of electromagnetic emission. Electrical emission may betransmitted through power lines or radiated through space, similar to a radio transmitter. When emissionsare received by other equipment, electrical interference may result. Electrical emissions may affect manykinds of electrical equipment; other nearby welding equipment, radio and TV reception, numerical controlledmachines, telephone systems, computers, etc. Be aware that interference may result and extra precautionsmay be required when a welding power source is used in a domestic establishment.

Installation and UseThe user is responsible for installing and using the welding equipment according to the manufacturer’sinstructions. If electromagnetic disturbances are detected then it shall be the responsibility of the user of thewelding equipment to resolve the situation with the technical assistance of the manufacturer. In some casesthis remedial action may be as simple as earthing (grounding) the welding circuit, see Note. In other cases itcould involve construction of an electromagnetic screen enclosing the power source and the work completewith associated input filters. In all cases electromagnetic disturbances must be reduced to the point wherethey are no longer troublesome.

Note: The welding circuit may or may not be earthed for safety reasons according to national codes.Changing the earthing arrangements should only be authorized by a person who is compe-tent to access whether the changes will increase the risk of injury, e.g., by allowing parallelwelding current return paths which may damage the earth circuits of other equipment.

Assessment of AreaBefore installing welding equipment the user shall make an assessment of potential electromagnetic prob-lems in the surrounding area. The following shall be taken into account:

a) other supply cables, control cables, signaling and telephone cables; above, below and adjacent to thewelding equipment;

b) radio and television transmitters and receivers;

c) computer and other control equipment;

d) safety critical equipment, e.g., guarding of industrial equipment;

e) the health of the people around, e.g., the use of pacemakers and hearing aids;

f) equipment used for calibration or measurement

g) the immunity of other equipment in the environment. The user shall ensure that other equipment beingused in the environment is compatible. This may require additional protection measures;

h) the time of day that welding or other activities are to be carried out.

L10093 3-1-96H

viSAFETYvi


Electromagnetic Compatibility (EMC)

The size of the surrounding area to be considered will depend on the structure of the building and otheractivities that are taking place. The surrounding area may extend beyond the boundaries of the premises.

Methods of Reducing Emissions

Mains SupplyWelding equipment should be connected to the mains supply according to the manufacturer’s recommenda-tions. If interference occurs, it may be necessary to take additional precautions such as filtering of the mainssupply. Consideration should be given to shielding the supply cable of permanently installed welding equip-ment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. Theshielding should be connected to the welding power source so that good electrical contact is maintainedbetween the conduit and the welding power source enclosure.

Maintenance of the Welding EquipmentThe welding equipment should be routinely maintained according to the manufacturer’s recommendations.All access and service doors and covers should be closed and properly fastened when the welding equip-ment is in operation. The welding equipment should not be modified in any way except for those changesand adjustments covered in the manufacturers instructions. In particular, the spark gaps of arc striking andstabilizing devices should be adjusted and maintained according to the manufacturer’s recommendations.

Welding CablesThe welding cables should be kept as short as possible and should be positioned close together, running ator close to floor level.

Equipotential BondingBonding of all metallic components in the welding installation and adjacent to it should be considered.However, metallic components bonded to the work piece will increase the risk that the operator couldreceive a shock by touching these metallic components and the electrode at the same time. The operatorshould be insulated from all such bonded metallic components.

Earthing of the WorkpieceWhere the workpiece is not bonded to earth for electrical safety, not connected to earth because of its sizeand position, e.g., ships hull or building steelwork, a connection bonding the workpiece to earth may reduceemissions in some, but not all instances. Care should be taken to prevent the earthing of the workpieceincreasing the risk of injury to users, or damage to other electrical equipment. Where necessary, the connec-tion of the workpiece to earth should be made by a direct connection to the workpiece, but in some countrieswhere direct connection is not permitted, the bonding should be achieved by suitable capacitance, selectedaccording to national regulations.

Screening and ShieldingSelective screening and shielding of other cables and equipment in the surrounding area may alleviate prob-lems of interference. Screening of the entire welding installation may be considered for special applications.1

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1 Portions of the preceding text are contained in EN 60974-10: “Electromagnetic Compatibility (EMC) prod-uct standard for arc welding equipment.”

L10093 3-1-96H

viivii

TThhaannkk YYoouu 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 packet

accompanying 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 customer’s 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.

viiiviii TABLE OF CONTENTSPage

Installation .......................................................................................................Section ATechnical Specifications ........................................................................................A-1

Safety Precautions ..........................................................................................A-2Select Suitable Location..................................................................................A-2Stacking ..........................................................................................................A-2Tilting...............................................................................................................A-2 Input and Grounding Connections ..................................................................A-2Power Cord Connection ..................................................................................A-2Connection of Wire Feeders to V350-PRO (CE).............................................A-2Remote Control of Invertec®...........................................................................A-3Undercarriage Mountings................................................................................A-3Parallel Operations..........................................................................................A-4

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Operation .........................................................................................................Section BAdditional Safety Precautions ...............................................................................B-1General Description and Duty Cycle......................................................................B-1Operational Features and Controls.........................................................B-1 Thru B-3Remote Control of the Output Control and Weld Terminals ..................................B-3Design Features and Advantages .........................................................................B-4Auxiliary Power ......................................................................................................B-4Limitations..............................................................................................................B-4Recommended Processes ....................................................................................B-4

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Accessories .....................................................................................................Section CGeneral Options / Accessories ..............................................................................C-1“CE” Version ........................................................................................................................C-1Field Installed Options/Accessories.......................................................................C-1Ouick Disconnect Plugs.........................................................................................C-1

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Maintenance ....................................................................................................Section DSafety Precautions ................................................................................................D-1CAPACITOR DISCHARGE PROCEDURE..........................................................................D-1VISUAL INSPECTION...................................................................................................D-1ROUTINE MAINTENANCE ............................................................................................D-1PERIODIC MAINTENANCE ...........................................................................................D-1

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Section E ..............................................................................................TroubleshootingSafety Precautions.................................................................................................E-1How to Use Troubleshooting Guide.......................................................................E-1Troubleshooting Guide ...........................................................................E-2 Thru E-3Fault Codes ...........................................................................................................E-4Displays .................................................................................................................E-5

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Connection , Wiring Diagrams and Dimension Prints .................................Section F________________________________________________________________________

Parts List .....................................................................................................P-401 Series________________________________________________________________________


A-1INSTALLATION A-1TECHNICAL SPECIFICATIONS - INVERTEC® V350-PRO (CE)

INPUT AT RATED OUTPUT

OUTPUT CABLES, CONNECTIONS AND LIMITATIONS

Product Ordering Input AC Rated DC Output Output OpenName Information Voltage Amps/Volts/Duty Cycle Range Circuit

5500//6600 HHzz (continuous)

335500AA // 3344VV // 6600%% IInnvveerrtteecc®® 220000--222200// 33 PPhhaassee VV335500-- KK11772288--88 338800--440000// 332200AA // 3333VV // 6600%% AAMMPPSS 8800 VVDDPPRROO ““CCEE”” 441155--444400// 11 PPhhaassee 55--442255

6600//5500 HHzz227755AA // 3311VV //110000%%

11 PPhhaassee 330000AA // 3322VV // 110000%%

33 PPhhaassee

Select the output cable size based upon the following chart.Cable sizes for Combined Length of Electrode and Work Cable (Copper) 75C rated:DUTY CYCLE CURRENT LENGTH UP 61m (200 FT) 61-76m (200-250 FT)100% 275 1/0 1/060% 350 1/0 2/0

Voltage

200

220380400415440

Phases

1

11111

Input Amps275 Amps @31Volts(100%)

NotRecommended

6444403835

Input Amps320 Amps @33Volts(60%)

NotRecommended

8255504845

Line CordAWG---

46888

MaximumFuse size

---

125A80A80A80A80A

RECOMMENDED INPUT WIRE AND FUSE SIZES FOR MAXIMUM RATED OUTPUTRecommended Fuse Sizes Base On The U.S. National Electrical Code And Maximum Machine Outputs

Note 1. Not rated is indicated by 4-x’s in the box on the rating plate.Note 2. When operating on these inputs, the line cord should be changed to an input conductor of 6 AWG or larger.

Notes

Note 1

Note 2Note 2

* Overall Length Including Handle, 27.8” (706mm)

Height Width Depth Weight with Cord14.8”(373mm) 12.5”(317mm) 27.8” *(706mm*) 86.5 Lbs.(37.4 Kg)

PHYSICAL DIMENSIONS

TEMPERATURE RANGESSTORAGE TEMPERATURE RANGE

-40°C to +40°COPERATING TEMPERATURE RANGE

-20°C to +40°C

Voltage

200220380400415440

Phases

333333

Input Amps300Amps @32Volts(100%)

413728222221

Input Amps350Amps @34Volts(60%)

484828272624

Line CordAWG668888

MaximumFuse size80A80A50A50A50A50A

Input 50/60 Hz Recommended

Recommended

Notes

Note 2Note 2

A-2INSTALLATION A-2

SELECT SUITABLE LOCATIONThe Invertec® V350-PRO (CE) will operate in harshenvironments. Even so, it is important that simple pre-ventative measures are followed in order to assurelong life and reliable operation.

• The machine must be located where there is free cir-culation of clean air such that air movement in theback, out the sides and bottom 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.------------------------------------------------------------------------STACKINGInvertec® V350-PRO (CE) 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.

INPUT AND GROUNDING CONNECTIONS• Only a qualified electrician should connect theInvertec® V350-PRO (CE). Installation should bemade in accordance with the appropriate NationalElectrical Code, all local codes and the informationdetailed below.

• When received directly from the factory, multiplevoltage machines are internally connected for440VAC. If 440VAC is the desired input, then themachine may be connected to the power systemwithout any setup required inside the machine.

SAFETY PRECAUTIONS

ELECTRIC SHOCK can kill.

• TURN THE INPUT POWER OFF AT THE DISCONNECT SWITCH BEFOREATTEMPTING TO CONNECT OR DIS-

CONNECT INPUT POWER LINES, OUTPUTCABLES, OR CONTROL CABLES.• Only qualified personnel should perform thisinstallation.

• Connect the green/yellow lead of the powercord to ground per appropriate NationalElectrical Code.----------------------------------------------------------------------

WARNING• Initial 200VAC - 415VAC operation will require anInput voltage panel setup.• Open the access panel on the rear of the machine.• For 200 or 230: Position the large switch to 200-230.For higher voltages: Position the large switch to ≥ 380.• Move the "A" lead to the appropriate terminal.

POWER CORD CONNECTIONA 5 meter power cord is wired into the machine.Follow the power cord connection instructions.

• Incorrect connection may result in equipmentdamage.

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

Single Phase InputConnect green/yellow lead to ground per NationalElectrical Code.Connect blue and brown leads to power.Wrap black lead with tape to provide 600V insulation.

Three Phase InputConnect green/yellow lead to ground per appropriateNational Electric Code.Connect blue, black and brown leads to power.

CONNECTIONS OF WIRE FEEDERS TO INVERTEC®V350-PRO (CE)

LN-10 Connection Instructions• Turn the Invertec® power switch "off".• Connect the K1505 control cable from the LN-10 tothe 14-pin MS-style connector.

• Connect the electrode cable to the output terminalof polarity required by the electrode. Connect thework lead to the other terminal.

• Set the meter polarity switch on the front of theInvertec® to coincide with wire feeder polarity used.

• See the LN-10 manual for details on accessingControl DIP Switch

WARNING

WARNING

REMOTEREMOTE

POWERPOWER

OFFOFF

ONON

AA AMPSAMPS

AA

VV VOLTSVOLTS

WELD TERMINALS

WELD TERMINALS

SELECTSELECT

OUTPUTOUTPUTLINCOLN

LINCOLNELECTRIC

ELECTRIC

INVERTEC V350-PRO

INVERTEC V350-PRO

WARNING

WARNINGWARNING

WARNINGAVISO DE

AVISO DEPRECAUCION

PRECAUCION

ATTENTION

ATTENTION

!!

!!

!!

!!



















































































































GREEN/YELLOWBLUE

BLACK

BROWN


CAUTION

CAUTION

A-3INSTALLATION A-3


LN-15 Connection Instructions • Turn the Invertec® power switch "off".• Connect the electrode cable to the output terminal ofpolarity required by electrode. (See Figures below)

• Set the meter polarity switch on the front of the Invertec®

to coincide with wire feeder polarity used.

LN-25 Connection Instructions• Turn the Invertec® power switch "off".• Connect the electrode cable to the output terminal ofpolarity required by electrode. Connect the work lead tothe other terminal.

• LN-25 with Remote Control options can be used with the"CE" version of the V350. The 6-Pin (K444-1) and 14-pin(K444-2) remotes can be connected directly to the 6-pin& 14-pin MS-style connector. The 42 Volt RemoteVoltage and Output Control (K624-1) Kit can be connect-ed to the V350’s 14-pin MS-style connector usingRemote Control Cable assembly K627- [ ]. LN-25s with aK431-1 remote kit can be connected to the V350’s 14-pinMS-style connector using a K432 cable and K876adapter. (See connection diagram S19899). Or the K432cable could be modified with a K867 Universal AdapterPlug (See connection diagram S19405) to connect it tothe V350’s 14-pin MS-style connector.

LN-742 Connection Instructions• Turn the Invertec® power switch "off"• Either a K591 or a K593 Input cable assembly isrequired to connect the LN-742 to the Invertec®.

• Connect the control cable from the LN-742 to the14-pin MS-style connector.

• Connect the electrode cable to the output terminalof the polarity required by electrode. Connect thework lead to the other terminal.

• Set the meter polarity switch on the front of theInvertec® to coincide with wire feeder polarity used.The wire feeder will now display the welding volt-age.

• If a remote control such as K857 is to be used withthe LN-742, the remote can be connected directlyto the 6-pin MS-style connector on the front of theInvertec® or use a K864 adapter to connect the LN-742 and the remote to the 14-pin MS-style connector.

Cobramatic Connection Instructions• Turn the Invertec® power switch "off"• Connect the control cable from the Cobramatic tothe 14-pin MS-style connector.

• Connect the electrode cable to the output terminalof the polarity required by electrode. Connect thework lead to the other terminal.

• Set the meter polarity switch on the front of theInvertec® to coincide with wire feeder polarityused.

• If a remote control such as K857 is to be usedwith the Cobramatic, the remote can be connecteddirectly to the 6-pin MS-style connector on the frontof the Invertec® or use a K864 adapter to connectthe cobramatic and the remote to the 14-pin MS-style connector.

CONNECTION OF WIRE FEEDERS TO V350-PRO (CE)

Wire feeders other than these listed may be used pro-vided that the auxiliary power supply capacity of theInvertec® is not exceeded. K867 Universal AdapterPlug may be required. See connection diagramS24985 on page F-4.

REMOTE CONTROL OF INVERTEC®

Remote Control K857, Hand Amptrol K963 and FootAmptrol K870.

UNDERCARRIAGE MOUNTINGS

14.79

12.44

3.44 21.60

27.82

5.50

10.00

MOUNTING HOLE LOCATIONS

M19527

13.10

1/4-20 NUT (4 PLACES)

NOTE: MOUNTING SCREWS CA

4/01

N NOT PROTRUDE MORE THAN 0.5 INCHES INSIDE THE MACHINE.

11.84

3.50

WorkClamp

Electrode Cable

Electrode Cable

Electrode Cable

WorkClamp

WorkClamp

wire feederK1870-1wire feederK1870-1

RANGER 8SAE 400 WITH CV ADAPTER

ENGINE DRIVEN WELDERSWITH WIRE FEED MODULE(LOCAL MODE AND CV ADAPTER)

CV250CV300CV400

CC POWER SOURCE

Output TerminalsAlways Hot.



Order K484 JumperPlug Kit.

Electrode Cable

WorkClamp

semiautomatic

semiautomatic

semiautomatic

semiautomaticwire feederK1870-1

wire feederK1870-1

wire feederK1870-1

CV655, DC400, DC600,DC655, V350-PRO,

RANGER 9, RANGER 300 DLXCOMMANDER 300COMMANDER 500RANGER 2V35050RANGER 305G

Output TerminalsOutput TerminalsAlways Hot.Always Hot.

Power source contactorPower source contactorswitch must be in theswitch must be in the "ON" position or use a "ON" position or use aK848 Junper Plug Kit.K848 Junper Plug Kit.

ACROSS THE ARC MODEL

V350-PRO

TWIST-MATE

CONTROL CABLE MODEL

Electrode Cable

A-4INSTALLATION A-4


PARALLEL OPERATION

The INVERTEC® v350-pro (CE) are operable in par-allel in CC mode. For best results, the currents ofeach machine should be reasonably well shared. Asan example, with two machines set up in parallel for a400 amp procedure, each machine should be set todeliver approximately 200 amps, not 300 amps fromone and 100 amps from the other. This will minimizenuisance shutdown conditions. In general, more thantwo machines in parallel will not be effective due tothe voltage requirements of procedures in that powerrange.

To set machine outputs, start with output control potsand arc control pots in identical positions. Use theoutput control pots to balance the currents and main-tain the desired current. The arc control pots shouldbe kept identical on the two machines.

B-1OPERATION


B-1SAFETY PRECAUTIONS

ELECTRIC SHOCK can kill.• Do not touch electrically live parts orelectrode with skin or wet clothing.• Insulate yourself from work andground.• Always wear dry insulating gloves.

------------------------------------------------------------------------FUMES AND GASES can be danger-ous.• Keep your head out of fumes.• Use ventilation or exhaust to removefumes from breathing zone.

------------------------------------------------------------------------WELDING SPARKS can cause fire orexplosion.• Keep flammable material away.• Do not weld on closed containers.

------------------------------------------------------------------------ARC RAYS can burn eyes and skin.• Wear eye, ear and body protection.

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

See additional warning information atfront of this operator’s manual.-----------------------------------------------------------

WARNING

GENERAL DESCRIPTIONPRODUCT DESCRIPTION & DUTY CYCLEThe Invertec® V350-PRO (CE) offers multi mode CVand CC DC welding and is rated at 350 amps, 34 voltsat a 60% duty cycle with 3 phase input. It is also ratedat 320 amps with single phase input. It is rated at 275amps, 100% duty cycle.

OPERATIONAL FEATURES and CONTROLS:UPPER CONTROL PANEL1. AMPS Meter• Prior to STICK or TIG operation (current flow), themeter displays preset current value (either 2 ampsor +/- 3% (e.g. 3 amps on 100), whichever isgreater).• Prior to CV operation, the meter displays four dash-es indicating non-presettable AMPS.• During welding, this meter displays actual averageamps.• After welding, the meter holds the actual currentvalue for 5 seconds. Output adjustment while in the"hold" period results in the "prior to operation" char-acteristics stated above. The displays blink indicat-ing that the machine is in the "Hold" period.

2. VOLT METER• Prior to CV operation (current flow), the meter dis-plays desired preset voltage value (+/- .5V).• Prior to STICK or TIG operation, the meter displaysthe Open Circuit Voltage of the Power Source orfour dashes if the output has not been turned on.• During welding, this meter displays actual averagevolts.• After welding, the meter holds the actual voltagevalue for 5 seconds. The displays blink indicatingthat the machine is in the "Hold" period.• Output adjustment while in the "hold" period resultsin the "prior to operation" characteristics statedabove.

3. OUTPUT CONTROL• Output control is conducted via a single turn poten-tiometer. • Adjustment is indicated by the meters as statedabove. • When in TIG modes, this control sets the maximumwelding current. Full depression of a foot or handAmptrol results in the preset level of current.

4. WELD TERMINALS-REMOTE , ON• Two status lights indicate the location of trigger con-trol as determined by the "WELD TERMINALS"push button. • If trigger control is local "weld terminals on", the ONdisplay will be lit. • If trigger control is remote "weld terminals remotelycontrolled", the REMOTE display will be lit.• The unit will power up in "pre-determined preferred"trigger modes.

STICK = ON TIG and CV = ON or REMOTE depending if remoteoutput controls are connected to the machine.

B-2OPERATIONB-2

5. THERMAL• This status light indicates when the power sourcehas been driven into thermal overload. If the outputterminals were "ON", the "ON" light will blink indicat-ing that the output will be turned back on once theunit cools down to an acceptable temperature level.If the unit was operating in the "REMOTE" mode,the trigger will need to be opened before or after thethermal has cleared and closed after the machinehas cooled down to an acceptable temperature toestablish output.

6. CONTROL-REMOTE , LOCAL• Two status lights indicate the location of output con-trol as pre-determined by the power sources auto-configure system. • The LOCAL display will be lit when control is at thepower source. • The REMOTE display will be lit when a remotepot/control is detected.

These Output Control configurations can be overrid-den (switched) with the CONTROL push button.When changed, the unit will power up in the configura-tion it was in when it was last powered down.

Hidden Middle Control Panel – ProcessSet Up PanelThe middle control panel is removable to allow forupgrades (see Field Installed Options/Accessories).Additionally, this panel is hidden by an access door toreduce appeared complexity and provide protection tothe controls.

7. WELD MODE SELECTThe Mode Control button selects the following weldingmodes desired.

CC-STICK SOFT: The Stick Soft process featurescontinuous control ranging from 5 to 425 amps. Thismode was intended for most SMAW applications, andArc Gouging.

• Arc Gouging: Setting the output of the Stick Softmode to 425 amps will enable the arc-gougingmode. The actual output current will depend on thesize of carbon used. The recommended maximumsize carbon is 5/16".

• The Hot Start control regulates the starting currentat arc initiation. Hot Start can be adjusted from min-imum (0), with no additional current added at arcstart, to maximum (10), with double the preset cur-rent or 425 amps (max of machine) added for thefirst second after arc initiation.

• The Arc Control regulates the Arc Force to adjustthe short circuit current. The minimum setting (-10)will produce a "soft" arc and will produce minimalspatter. The maximum setting (+10) will produce a"crisp" arc and will minimize electrode sticking.

CC-STICK CRISP: The Stick Crisp mode featurescontinuous control from 5 to 425 amps. This modewas intended primarily for pipe welding applications.

• The Hot Start control regulates the starting currentat arc initiation. Hot Start can adjust starting currentup or down by 25% of the preset value. The recom-mended setting for Hot Start is 5 where the initialcurrent is equal to the preset current.


REMOTEREMOTEONON

REMOTEREMOTELOCALLOCAL

WELD TERMINALSWELD TERMINALS

OUTPUTOUTPUT

CONTROLCONTROL

SELECTSELECT SELECTSELECT

MPSMPSAA OLTSOLTSVV

1

6

52

3

4

8

7

11

10

12 9

FIGURE 1

B-3OPERATIONB-3• The Arc Control regulates the Arc Force to adjustthe short circuit current. The minimum setting (-10)will produce a "soft" arc and will produce minimalspatter. The maximum setting (+10) will produce a"crisp" arc and will minimize electrode sticking.

TIG GTAW: The TIG mode features continuous con-trol from 5 to 425 amps. The TIG mode can be run ineither the TIG touch start or high frequency assistedstart mode.

• The Hot Start control selects the starting modedesired. A setting of less than 5, the TIG lift startmode is selected. The OCV is controlled below 10vand the short circuit "TIG touch" current is main-tained at 25 amps independent of the preset current.When the tungsten is lifted, an arc is initiated and theoutput is regulated at the preset value. Hot start set-tings between 0 and 5 regulate the arc initiation cur-rent. A setting of 5 results in the most positive arc ini-tiation. A setting of 0 reduces hot start.• Hot Start settings between 5 and 10, select high fre-quency assisted starting TIG mode. In this range, theOCV of the machine is controlled between 50 and 70volts. If using the Lincoln K930-1 TIG Module, setthe Hot start to 10 for maximum OCV. • The Arc Control is not used in the TIG mode.

TIG SOLENOID OPTION

The Solenoid only operates when th V350 is in theTIG mode. If the Weld Terminals are in “Remote” thenthe solenoid will open when the arc start switch isclosed. The solenoid will close after the arc switch hasbeen opened and the post flow time expired.

If the Weld Terminals are turned “ON”, then the sole-noid will open when the electrode is touch to the work.The electrode needs to remain in contact with thework to allow for gas coverage before attempting tostart the arc. The solenoid will close after the arc hasbeen broken and the post flow time expired.

CV-WIRE: The CV-WIRE mode features continuouscontrol from 10 to 45 volts. The mode was intendedfor most GMAW, FCAW, and MCAW applications.

• The Hot Start control is not used in the CV-WIREmode.• The Arc Control regulates pinch effect. At the mini-mum setting (-10), minimizes pinch and results in asoft arc. Low pinch settings are preferable for weld-ing with gas mixes containing mostly inert gases. Atthe maximum setting (+10), maximizes pinch effectand results in a crisp arc. High pinch settings arepreferable for welding FCAW and GMAW with CO2.

CV-INNERSHIELD: The CV-INNERSHIELD modefeatures continuous control from 10 to 45 volts. Thismode was designed for self-shielded flux cored wiresthat require tight voltage control.

• The Hot Start control is not used in the CV-FLUXCORED mode.• The Arc Control regulates pinch effect. At the mini-mum setting (-10), minimizes pinch and results in asoft arc. At the maximum setting (+10), maximizespinch effect and results in a crisp arc. Most self-shielded wires work well at an Arc Control setting of 5.

8. HOT START and ARC CONTROL features havedifferent functions depending on the welding Modethat is active. Each feature is described under thewelding mode heading. (See Item 6 for specifiedMode Operation)

LOWER CASE FRONTThe output studs, line switch and remote connectorare located on the lower case front.

9. Both STUDS contain "Twist-Mate" connectorinserts. • The Negative stud is configured to accept thepass through gas system.

10. The ON-OFF switch is a 3-phase circuit breakerrated at 100 amps per leg.

11. The METER POLARITY switch is located abovethe output connectors. The switch provides a workconnection for wire feeder voltmeters. Place theswitch in the position of the electrode polarity indi-cated by the decal. The switch does not changethe welding polarity.

12. 6-PIN MS-style connector for remote control.

REMOTE CONTROL of the OUTPUT CON-TROL andWELD TERMINALSThe Invertec® V350-PRO (CE) has auto sensing ofremote output controls.If after connecting or removinga remote, the Invertec® V350-PRO (CE) did not con-figured the way you would like the local or remotecontrol settings can be changed by pushing the OUT-PUT CONTROL or WELD TERMINAL button. (A usercannot select between the 6 and 14-pin MS-style con-nector.)

CV modes• The remote will default to the 14-pin MS-style con-nector remote if a remote is connected. If no remoteis connected to the 14-pin MS-style connector thenthe remote will default to the 6-pin MS-style connec-tor if a remote is connected to it.• In all of the CV modes, the WELD TERMINAL con-trol will default to REMOTE.


B-4OPERATIONB-4TIG mode• The remote will default to the 6-pin MS-style if aremote control is connected to the 6-pin MS-styleand to the 14-pin MS-style connectors. If a remote isnot connected to the 6-pin MS-style connector thenthe remote will default to the 14-pin MS-style con-nector if a remote is connected.• If a remote control is connected to any of theamphenols the WELD TERMINAL control willdefault to REMOTE. If there are not any remotecontrol devices attached the WELD TERMINAL con-trol will default to ON.

CC-Stick modes • The remote will default to only the 6-pin amphenol ifa remote is connected to it.• The WELD TERMINAL control will default to ONwith or without a remote connected.

Types of Remote OUTPUT CONTROL• The Invertec® V350-PRO (CE)’s Output Control canbe controlled by either a potentiometer connectedbetween 77 & 75 with the wiper connected to 76 ora 0V to 10V DC supply connected between 76 & 75.(76 needs to be positive)• 14-pin MS-style connector lead 75 is pin G, lead 76is pin F and lead 77 is pin E.• 6-pin MS-style connector lead 75 is pin C, lead 76 ispin B and lead 77 is pin A.

Potentiometer Control• The total resistance should be between 2000 ohms(2K) and 10,000 ohms (10K)• The machine output will be at minimum when lead76 (wiper) is at the end of the potentiometer that isconnected to 75. The machine’s output will increaseas the wiper of the potentiometer is moved to theend that is connected to 77. (Note: In TIG mode,moving the lead 76 (wiper) to lead 77 would pro-duce the current that has been set by the Invertec®

V350-PRO (CE)’s front panel Output Control.)• Remotes of this type offered by Lincoln Electric arethe K857, K812 and K870.

Voltage Control• The supply should be an isolated supply. (Not refer-enced to earth ground, any auxiliary power from theInvertec® V350-PRO (CE) or the welding output)The supply should be capable of supplying at least 20mA.

• 0 volts supplied to 76 will set the Invertec® V350-PRO (CE) to minimum output for the mode that hasbeen selected while 10 volts supplied to 76 will setthe Invertec® V350-PRO (CE) to the maximum out-put for the mode. (Note: In TIG mode, 10 volts sup-plied to lead 76 would produce the current that hasbeen set by the Invertec® V350-PRO (CE)’s frontpanel Output Control.)

Types of Remote WELD TERMINAL Control• The Invertec® V350-PRO (CE)’s Weld Terminalscan be controlled from each of the amphenol con-nectors. The circuit has a nominal OCV of 15VDCand requires a dry contact closure (less than 100ohms) to activate the output of the Invertec® V350-PRO (CE).

• 14 Pin Amphenols the Weld Terminals are controlledfrom pins C (lead 2) and pin D (lead 4). Pin C is posi-tive. • 6 Pin Amphenol the Weld Terminals are controlledfrom pin D (lead 2) and pin E (lead 4). In the 6-pinamphenol pin D is positive.

AUXILIARY POWER• 42VAC and 24VAC power is available from the 14-pin MS-style connector. These supplies are intend-ed to supply power for auxiliary equipment like wirefeeders. • 42 VAC supply is rated at 5.5 amps and is protectedby a 10 amp breaker located by the amphenol.• 24 VAC supply is rated at 5.5 amps and is protectedby a 10 amp breaker located by the amphenol.

LIMITATIONS• The V350-PRO (CE) is not recommended forprocesses other than those listed.• The V350-PRO (CE) can only be used with the rec-ommended equipment and options.

RECOMMENDED PROCESSESProperly equipped, the Invertec® V350-PRO (CE)supports GMAW, FCAW, SMAW, GTAW and CAC-A processes for a variety of materials, includingmild steel, stainless steel, cored wires, and alu-minum


C-1ACCESSORIESC-1OPTIONS / ACCESSORIES

• The V350-PRO (CE) provides the hardware to powerand connect to 24 or 42 wire feeders.

K857 Remote Output ControlK814 Arc Start SwitchK812 Hand Operated AmptrolK870 Foot Operated AmptrolK428, K446, K449 LN-25K617 (-1 or -2) K618 (-1 or -2) LN-742K1559-1, K1564-1 LN-10K1499-1, K1521-1 DH-10K1587-1 Cobramatic

Welding Cable Connectors:• K852-70 1/0-2/0 cable• K852-95 2/0-3/0 cable

FIELD INSTALLED OPTIONS

• K1762-2 TIG Gas Control Kit

• K1764-1 Undercarriage

• K1838-1 Valet Style Undercarriage


QUICK DISCONNECT PLUGS

A quick disconnect system is used for the weldingcable connections. The The K852-70 is designed toaccept a welding cable size of 1/0 to 2/0.

1. Remove 25mm (1 in.) 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

D-1MAINTENANCED-1

VISUAL INSPECTION

Clean interior of machine with a low pressure airstream. Make a thorough inspection of all compo-nents. Look for signs of overheating, broken leads orother obvious problems. Many problems can beuncovered with a good visual inspection.

ROUTINE MAINTENANCE

1. Every 6 months or so the machine should becleaned with a low pressure airstream. Keepingthe machine clean will result in cooler operationand higher reliability. Be sure to clean these areas:

• All printed circuit boards• Power switch• Main transformer• Input rectifier • Auxiliary Transformer• Reconnect Switch Area• Fan (Blow air through the rear louvers)

2. Examine the sheet metal case for dents or breakage.Repair the case as required. Keep the case in good con-dition to insure that high voltage parts are protected andcorrect spacings are maintained. All external sheetmetal screws must be in place to insure case strengthand electrical ground continuity.

PERIODIC MAINTENANCE

Overload ProtectionThe machine is electrically protected from producinghigh output currents. Should the output currentexceed 430A, an electronic protection circuit willreduce the current to approximately 100A. Themachine will continue to produce this low current untilthe protection circuit is reset. Reset occurs when theoutput load is removed.

Thermal ProtectionThermostats protect the machine from excessiveoperating temperatures. Excessive temperatures maybe caused by a lack of cooling air or operating themachine beyond the duty cycle and output rating. Ifexcessive operating temperature should occur, thethermostat will prevent output voltage or current. Themeter will remain energized during this time.

Thermostats are self-resetting once the machine coolssufficiently. If the thermostat shutdown was caused byexcessive output or duty cycle and the fan is operatingnormally, the Power Switch may be left on and thereset should occur within a 15 minute period.


SAFETY PRECAUTIONS

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

ELECTRIC SHOCK can kill.• Do not touch electrically live parts orelectrode with skin or wet clothing.

• Insulate yourself from work andground

• Always wear dry insulating gloves.------------------------------------------------------------------------

EXPLODING PARTS can causeinjury.• Failed parts can explode or cause otherparts to explode when power is applied.• Always wear a face shield and long

sleeves when servicing.------------------------------------------------------------------------See additional warning informationthroughout this operator’s manual andthe Engine manual as well.-----------------------------------------------------------

WARNING

CAPACITOR DISCHARGE PROCEDURE1. Obtain a power resistor (25 ohms, 25 watts).

2. Hold resistor body with electrically insulated glove.DO NOT TOUCH TERMINALS. Connect the resis-tor terminals across the two studs in the positionshown. Hold in each position for 1 second. Repeatfor all four capacitors.

3. Use a DC voltmeter to check that voltage is notpresent across the terminals on all four capacitors.

CAPACITORTERMINALS

RESISTOR

E-1TROUBLESHOOTINGE-1


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




CAUTION

Observe all Safety Guidelines detailed throughout this manual

PROBLEMS(SYMPTOMS)

POSSIBLE AREAS OFMISADJUSTMENT(S)

RECOMMENDEDCOURSE OF ACTION

Major physical or electrical damageis evident when the sheet metalcovers are removed.

Input fuses keep blowing, or inputbreaker keeps tripping

Machine will not power up (Nolights)

Machine won’t weld, can’t get anyoutput.

1. Contact your local authorizedLincoln Electric Field Servicefacility for technical assistance.

1. Make certain that the fuses orbreakers are properly sized. Seeinstallation section of the manualfor recommended fuse andbreaker sizes.

2. Welding procedure is drawing toomuch output current, or dutycycle is too high. Reduce outputcurrent, duty cycle or both.

3. There is internal damage to thepower source. Contact an autho-rized Lincoln Electric Servicefacility.

1. Make certain that the powerswitch is in the "ON" position.

2. The circuit breaker in the recon-nect area may have opened.Reset. Check input voltage sec-tion below.

3. Input voltage selection madeimproperly. Power down, checkinput voltage reconnect accord-ing to diagram on reconnectcover.

4. The 6 amp breaker may haveopened. Check for overload on42VAC or 24VAC supply from the14 pin MS-style connector.

1. If the displays show an Err ###see the fault section for correc-tive action.

2. If the displays are not lit refer tomachine will not power up sec-tion.

3. If the thermal symbol is lit refer tothe thermal section.

4. If the output terminals are inRemote control switch to "ON"and check for output voltage. Ifoutput voltage is now presentcheck for correct remote controlconnection and operation.

If all recommended possible areasof misadjustment have beenchecked and the problem persists,Contact your local LincolnAuthorized Field Service Facility.





CAUTION

PROBLEMS(SYMPTOMS)

POSSIBLE AREAS OFMISADJUSTMENT(S)

RECOMMENDEDCOURSE OF ACTION

Thermal symbol is lit

Wire feeder won’t work. Apparentlyno power to wire feeder

1. Check for proper fan operation. Iffan is not operating correctly theCB 2 breaker may have opened.Check for an overload on the115VAC. Blow air in rear louversto remove dirt from around fan.

2. Check for material blockingintake or exhaust louvers.

3. Blow air in the rear louvers toclear dirt from the fan.

1. Check circuit breakers by thewire feeder receptacles on therear of the machine. Reset

2. Check the control cable betweenthe power source and the wirefeeder for continuity.

If all recommended possible areasof misadjustment have beenchecked and the problem persists,Contact your local LincolnAuthorized Field Service Facility.





CAUTION

Fault Codes

Code Description Corrective Action31 Primary over current. If condition persists The machine needs to

contact an authorized be turned off and backLincoln Field Service on to reset the machine.Shop

32 CAP bank A under voltage. Check input power Self-clearing as33 CAP bank B under voltage. reconnect to make sure condition ceases.34 CAP bank A over voltage. the machine is connected35 CAP bank B over voltage. for the input power being37 Soft start Failed. supplied. Cycle power.39 Glitch on the primary over Check the machine Self-clearing as

current fault interrupt; possibly ground. condition ceases.caused by noise or a signal level If problem persists(misc. hardware fault #1) contact an authorized

Lincoln Field Service Shop

43 CAP delta; CAP A and B are out Check input powerof balance. reconnect to make sure

the machine isconnected for the inputpower being supplied.

44 Main CPU problem. The DSP Check the machinehas detected a problem with the ground.CPU.

47 Glitch on the CAP/heart beat If problem persistsinterrupt; possibly caused by contact an authorizednoise or a signal level right at Lincoln Field Servicethe trip threshold. Shop(misc. hardware fault #2)

48 The main contactor opened If condition persist Self-clearingunexpectedly. (misc. hardware contact an authorizedfault #3) Lincoln Field Service

Shop"bad The selected weld mode does If condition persists Press the Modenode’ not exist in the weld table that is contact an authorized Select button to “####” presently loaded in the machine. Lincoln Field Service select a different

Shop mode





CAUTION

Displays Description

Scrolling dash Appears at power up while the machine is going through its self configu-ration

"Err" "####" Fault code display. The first fault to occur will be displayed for threeseconds. The display will cycle through fault codes for all faults thatpersist after the initial three-second period are displayed for 1 sec-ond each.

"----" "----" Weld mode is changing

"----" "####" A constant voltage weld mode is selected, machine output is off.The numeric value in the right display is the work point.

"####" "----" A constant current weld mode is selected, machine output is off.The numeric value in the left display is either the work point or awork point limit, depending on the weld mode and remote configura-tion.

"####" "####"(on steady) machine output is on. Left display is current, right display is voltage.If actively welding, the displays are arc current and arc voltage. Ifnot actively welding, the display will show work point.

"####" "####" (blinking) weld just finished – the average arc voltage and current will beblinked for 5 seconds following a weld. If the work point changesduring this 5 second period, the display will revert to the abovemode.

F-1DIAGRAMSF-1


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F-2DIAGRAMSF-2


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F-3DIAGRAMSF-3


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CONN

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ON D

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AM

F-4DIAGRAMSF-4


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76

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DIAG

RAM

F-5DIAGRAMSF-5


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LN

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89

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K876

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LN-2

5 - C

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N DI

AGRA

M

F-6DIAGRAMSF-6


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pers

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-7

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K8

64

K4

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NP

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14

PIN

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57

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K9

63

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K8

70

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N.C

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48

0-7

IN

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AB

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ON

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DIR

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TL

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.

6 P

IN

AM

PH

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OR

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N.D

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4 A

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N-2

5.

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15

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C

AU

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19

90

1

4

-19

-96

D

K864

ADA

PTER

TO

LN-7

& R

EMOT

E CO

NTRO

L - C

ONNE

CTIO

N DI

AGRA

M

F-7DIAGRAMSF-7


NOTE: This diagram is for reference only. It may not be accurate for all m

achines covered by this manual. The specific diagram for a particular code is pasted inside

the machine on one of the enclosure panels. If the diagram is illegible, w

rite to the Service Department for a replacement. G

ive the equipment code number.

®

F-8DIAGRAMSF-8


1 4.7

9

12.4

4

3.44

21.6

0

27.8

2

5.50

10.0

0

MO

UN

TIN

G H

OLE

LO

CA

TIO

NS

M19

527

13.1

0

1/4-

20 N

UT

(4

PLA

CE

S)

NO

TE

: M

OU

NT

ING

SC

RE

WS

CA

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NOTES


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 THE CONSUMABLES TO BEUSED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOSCONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.

LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS AETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER-STELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND 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 elec-trodos com a pele ou roupa molha-da.

� 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 PARTES DE USO, E SIGA ASPRÁTICAS 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 öff-nen; 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 •

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Inverec V350-PRO Operators Manual

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