Invertec v350 Pro

Operators Manual

INVERTEC V350-PRO (CE)

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IM907-A | Issue D ate June - 13 Lincoln Global, Inc. All Rights Reserved.

For use with machines having Code Numbers:

11369, 11486, 11563

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WARNING

REMOTE

POWER

OFF

ON

A

AMPS

A

V

VOLTS

WELD TERMINALS

SELECT

OUTPUTLINCOLNELECTRIC

INVERTEC V350-PRO

WARNINGWARNING

AVISO DE

PRECAUCION

ATTENTION

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Save for future reference

Date Purchased

Code: (ex: 10859)

Serial: (ex: U1060512345)

THANK YOU FOR SELECTING A QUALITY PRODUCT BY LINCOLN ELEC TRIC.

PLEASE EXAMINE CARTON AND EQUIPMENT FORDAMAGE IMMEDIATELY

When this equipment is shipped, title passes to the purchaser uponreceipt by the carrier. Consequently, Claims for material damaged inshipment must be made by the purchaser against the transportationcompany at the time the shipment is received.

SAFETY DEPENDS ON YOU

Lincoln arc welding and cutting equipment is designed and built withsafety in mind. However, your overall safety can be increased byproper installation ... and thoughtful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONSCONTAINED THROUGHOUT. And, most importantly, think before youact and be careful.

This statement appears where the information must be followedexactly to avoid serious personal injury or loss of life.

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

KEEP YOUR HEAD OUT OF THE FUMES.

DONT get too close to the arc. Usecorrective lenses if necessary tostay a reasonable distance awayfrom the arc.

READ and obey the Material SafetyData Sheet (MSDS) and the warninglabel that appears on all containersof welding materials.

USE ENOUGH VENTILATION orexhaust at the arc, or both, to keepthe fumes and gases from your breathing zone and the general area.

IN A LARGE ROOM OR OUTDOORS, natural ventilation may beadequate if you keep your head out of the fumes (See below).

USE NATURAL DRAFTS or fans to keep the fumes away from yourface.

If you de velop unusual symptoms, see your supervisor. Perhaps thewelding atmosphere and ventilation system should be checked.

WEAR CORRECT EYE, EAR & BODY PROTECTION

PROTECT your eyes and face with welding helmetproperly fitted and with proper grade of filter plate(See ANSI Z49.1).

PROTECT your body from welding spatter and arcflash with protective clothing including woolenclothing, flame-proof apron and gloves, leatherleggings, and high boots.

PROTECT others from splatter, flash, and glare withprotective screens or barriers.

IN SOME AREAS, protection from noise may beappropriate.

BE SURE protective equipment is in good condition.

Also, wear safety glasses in work areaAT ALL TIMES.

SPECIAL SITUATIONSDO NOT WELD OR CUT containers or materials which previously hadbeen in contact with hazardous substances unless they are properlycleaned. This is extremely dangerous.

DO NOT WELD OR CUT painted or plated parts unless specialprecautions with ventilation have been taken. They can release highlytoxic fumes or gases.

Additional precautionary measuresPROTECT compressed gas cylinders from excessive heat, mechanicalshocks, and arcs; fasten cylinders so they cannot fall.

BE SURE cylinders are never grounded or part of an electrical circuit.

REMOVE all potential fire hazards from welding area.

ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FORIMMEDIATE USE AND KNOW HOW TO USE IT.

WARNING

CAUTION

SECTION A:WARNINGS

CALIFORNIA PROPOSITION 65 WARNINGSDiesel EnginesDiesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and otherreproductive harm.

Gasoline EnginesThe engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or otherreproductive harm.

ARC WELDING CAN BE HAZARDOUS. PROTECTYOURSELF AND OTHERS FROM POSSIBLE SERIOUSINJURY OR DEATH. KEEP CHILDREN AWAY. PACE-MAKER WEARERS SHOULD CONSULT WITH THEIRDOCTOR BEFORE OPERATING.

Read and understand the following safety highlights. For additionalsafety information, it is strongly recommended that you purchase acopy of Safety in Welding & Cutting - ANSI Standard Z49.1 from theAmerican Welding Society, P.O. Box 351040, Miami, Florida 33135 orCSA Standard W117.2-1974. A Free copy of Arc Welding Safetybooklet E205 is available from the Lincoln Electric Company, 22801St. Clair Avenue, Cleveland, Ohio 44117-1199.

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

FOR ENGINE POWEREDEQUIPMENT.

1.a. Turn the engine off before troubleshootingand maintenance work unless themaintenance work requires it to be running.

1.b. Operate engines in open, well-ventilated areas or vent the engineexhaust fumes outdoors.

1.c. Do not add the fuel near an open flamewelding arc or when the engine is running.Stop the engine and allow it to cool beforerefueling to prevent spilled fuel fromvaporizing on contact with hot engine partsand igniting. Do not spill fuel when fillingtank. If fuel is spilled, wipe it up and do not start engine untilfumes have been eliminated.

1.d. Keep all equipment safety guards, covers anddevices in position and in good repair.Keephands, hair, clothing and tools away from V-belts, gears, fans and all other moving partswhen starting, operating or repairingequipment.

1.e. In some cases it may be necessary to remove safety guards toperform required maintenance. Remove guards only whennecessary and replace them when the maintenance requiringtheir removal is complete. Always use the greatest care whenworking near moving parts.

1.f. Do not put your hands near the engine fan. Do not attempt tooverride the governor or idler by pushing on the throttle controlrods while the engine is running.

1.g. To prevent accidentally starting gasoline engines while turningthe engine or welding generator during maintenance work,disconnect the spark plug wires, distributor cap or magneto wireas appropriate.

1.h. To avoid scalding, do not remove the radiatorpressure cap when the engine is hot.

ELECTRIC ANDMAGNETIC FIELDS MAYBE DANGEROUS

2.a. Electric current flowing through any conductorcauses localized Electric and Magnetic Fields (EMF). Weldingcurrent creates EMF fields around welding cables and weldingmachines

2.b. EMF fields may interfere with some pacemakers, and weldershaving a pacemaker should consult their physician beforewelding.

2.c. Exposure to EMF fields in welding may have other health effectswhich 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 and workcables. If the electrode cable is on your right side, thework cable should also be on your right side.

2.d.4. Connect the work cable to the workpiece as close as pos-sible to the area being welded.

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

3

SAFETY

ELECTRIC SHOCK CAN KILL.

3.a. The electrode and work (or ground) circuits areelectrically hot when the welder is on. Donot touch these hot parts with your bare skinor 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 full areaof physical contact with work and ground.

In addition to the normal safety precautions, ifwelding must be performed under electricallyhazardous conditions (in damp locations or whilewearing wet clothing; on metal structures such asfloors, gratings or scaffolds; when in crampedpositions such as sitting, kneeling or lying, if thereis a high risk of unavoidable or accidental contactwith the workpiece or ground) use the followingequipment: 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 semiautomatic weldinggun are also electrically hot.

3.d. Always be sure the work cable makes a good electricalconnection with the metal being welded. The connection shouldbe 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 of electrodeholders connected to two welders because voltage between thetwo can be the total of the open circuit voltage of bothwelders.

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 It ems 6.c. and 8.

ARC RAYS CAN BURN.

4.a. Use a shield with the proper filter and cover plates to protect youreyes from sparks and the rays of the arc when welding orobserving open arc welding. Headshield and filter lens shouldconform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistant materialto protect your skin and that of your helpers from the 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.

FUMES AND GASESCAN BE DANGEROUS.

5.a. Welding may produce fumes and gaseshazardous to health. Avoid breathing thesefumes and gases. When welding, keep your head out of the fume.Use enough ventilation and/or exhaust at the arc to keep fumes

and gases away from the breathing zone. When weldingwith electrodes which require special ventilationsuch as stainless or hard facing (see instructionson container or MSDS) or on lead or cadmiumplated steel and other metals or coatings whichproduce highly toxic fumes, keep exposure as lowas possible and within applicable OSHA PEL andACGIH TLV limits using local exhaust ormechanical ventilation. In confined spaces or insome circumstances, outdoors, a respirator maybe required. Additional precautions are alsorequired when welding on galvanized steel.

5. b. The operation of welding fume control equipment is affected byvarious factors including proper use and positioning of theequipment, maintenance of the equipment and the specificwelding procedure and application involved. Worker exposurelevel should be checked upon installation and periodicallythereafter to be certain it is within applicable OSHA PEL andACGIH TLV limits.

5.c. Do not weld in locations near chlorinated hydrocarbon vaporscoming from degreasing, cleaning or spraying operations. Theheat and rays of the arc can react with solvent vapors to formphosgene, a highly toxic gas, and other irritating products.

5.d. Shielding gases used for arc welding can displace air and causeinjury or death. Always use enough ventilation, especially inconfined areas, to insure breathing air is safe.

5.e. Read and understand the manufacturers instructions for thisequipment and the consumables to be used, including thematerial safety data sheet (MSDS) and follow your employerssafety practices. MSDS forms are available from your weldingdistributor or from the manufacturer.

5.f. Also see item 1.b.

4

SAFETY

WELDING AND CUTTINGSPARKS CAN CAUSEFIRE OR EXPLOSION.

6.a. Remove fire hazards from the welding area. Ifthis is not possible, cover them to prevent thewelding sparks from starting a fire. Remember that weldingsparks and hot materials from welding can easily go throughsmall cracks and 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, specialprecautions should be used to prevent hazardous situations.Refer to Safety in Welding and Cutting (ANSI Standard Z49.1)and the operating information for the equipment being used.

6.c. When not welding, make certain no part of the electrode circuit istouching the work or ground. Accidental contact can causeoverheating 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 procedures willnot cause flammable or toxic vapors from substances inside.They can cause an explosion even though they have beencleaned. For information, purchase Recommended SafePractices for the Preparation for Welding and Cutting ofContainers and Piping That Have Held Hazardous Substances,AWS F4.1 from the American Welding Society (see addressabove).

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 oil freeprotective garments such as leather gloves, heavy shirt, cufflesstrousers, high shoes and a cap over your hair. Wear ear plugswhen welding out of position or in confined places. Always wearsafety glasses with side shields when in a welding area.

6.g. Connect the work cable to the work as close to the welding areaas practical. Work cables connected to the building framework orother locations away from the welding area increase thepossibility of the welding current passing through lifting chains,crane cables or other alternate circuits. This can create firehazards or overheat lifting chains or cables until they fail.

6.h. Also see item 1.c.

6.I. Read and follow NFPA 51B Standard for Fire Prevention DuringWelding, Cutting and Other Hot Work, available from NFPA, 1Batterymarch Park, PO box 9101, Quincy, Ma 022690-9101.

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

CYLINDER MAY EXPLODE IFDAMAGED.

7.a. Use only compressed gas cylinders containingthe correct shielding gas for the process usedand properly operating regulators designed forthe gas and pressure used. All hoses, fittings,etc. should be suitable for the application andmaintained in good condition.

7.b. Always keep cylinders in an upright position securely chained toan undercarriage or fixed support.

7.c. Cylinders should be located:

Away from areas where they may be struck or subjectedto physical damage.

A safe distance from arc welding or cutting operationsand any 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 hand tightexcept when the cylinder is in use or connected for use.

7.g. Read and follow the instructions on compressed gas cylinders,associated equipment, and CGA publication P-l, Precautions forSafe Handling of Compressed Gases in Cylinders, availablefrom the Compressed Gas Association 1235 Jefferson DavisHighway, Arlington, VA 22202.

FOR ELECTRICALLYPOWERED EQUIPMENT.

8.a. Turn off input power using the disconnectswitch at the fuse box before working on theequipment.

8.b. Install equipment in accordance with the U.S. National ElectricalCode, all local codes and the manufacturers recommendations.

8.c. Ground the equipment in accordance with the U.S. NationalElectrical Code and the manufacturers recommendations.

Refer tohttp://www.lincolnelectric.com/safety

for additional safety information.

5

SAFETY

Welding SafetyInteractive Web Guidefor mobile devices

ELECTROMAGNETICCOMPATIBILITY (EMC)

CONFORMANCE

Products displaying the CE mark are in conformity with EuropeanCommunity Council Directive of 3 May 1989 on the approximation ofthe laws of the Member States relating to electromagnetic compat-ibility (89/336/EEC). It was manufactured in conformity with a nationalstandard that implements a harmonized standard: EN 60974-10Electromagnetic Compatibility (EMC) Product Standard for Arc WeldingEquipment. It is for use with other Lincoln Electric equipment. It isdesigned for industrial and professional use.

INTRODUCTION

All electrical equipment generates small amounts of electromagneticemission. Electrical emission may be transmitted through power linesor radiated through space, similar to a radio transmitter. Whenemissions are received by other equipment, electrical interferencemay result. Electrical emissions may affect many kinds of electricalequipment; other nearby welding equipment, radio and TV reception,numerical controlled machines, telephone systems, computers, etc.Be aware that interference may result and extra precautions may berequired when a welding power source is used in a domestic estab-lishment.

INSTALLATION AND USE

The user is responsible for installing and using the welding equipmentaccording to the manufacturers instructions. If electromagneticdisturbances are detected then it shall be the responsibility of theuser of the welding equipment to resolve the situation with thetechnical assistance of the manufacturer. In some cases this remedialaction may be as simple as earthing (grounding) the welding circuit,see Note. In other cases it could involve construction of an electro-magnetic screen enclosing the power source and the work completewith associated input filters. In all cases electromagnetic disturbancesmust be reduced to the point where they 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 shouldonly be authorized by a person who is competent to access whether thechanges will increase the risk of injury, e.g., by allowing parallel weldingcurrent return paths which may damage the earth circuits of other equip-ment.

ASSESSMENT OF AREA

Before installing welding equipment the user shall make anassessment of potential electromagnetic problems in the surroundingarea. The following shall be taken into account:

a. other supply cables, control cables, signaling and telephone cables;above, below and adjacent to the welding 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 andhearing aids;

f. equipment used for calibration or measurement

g. the immunity of other equipment in the environment. The user shallensure that other equipment being used 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.

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

METHODS OF REDUCING EMISSIONS

Mains SupplyWelding equipment should be connected to the mains supplyaccording to the manufacturers recommendations. If interferenceoccurs, it may be necessary to take additional precautions such asfiltering of the mains supply. Consideration should be given toshielding the supply cable of permanently installed weldingequipment, in metallic conduit or equivalent. Shielding should beelectrically continuous throughout its length. The shielding should beconnected to the welding power source so that good electrical contactis maintained between the conduit and the welding power sourceenclosure.

Maintenance of the Welding EquipmentThe welding equipment should be routinely maintained according tothe manufacturers recommendations. All access and service doorsand covers should be closed and properly fastened when the weldingequipment is in operation. The welding equipment should not bemodified in any way except for those changes and adjustmentscovered in the manufacturers instructio ns. In particular, the sparkgaps of arc striking and stabilizing devices should be adjusted andmaintained according to the manufacturers recommendations.

Welding CablesThe welding cables should be kept as short as possible and should bepositioned close together, running at or close to floor level.

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

Earthing of the WorkpieceWhere the workpiece is not bonded to earth for electrical safety, notconnected to earth because of its size and position, e.g., ships hull orbuilding steelwork, a connection bonding the workpiece to earth mayreduce emissions in some, but not all instances. Care should be takento prevent the earthing of the workpiece increasing the risk of injuryto users, or damage to other electrical equipment. Where necessary,the connection of the workpiece to earth should be made by a directconnection to the workpiece, but in some countries where directconnection is not permitted, the bonding should be achieved bysuitable capacitance, selected according to national regulations.

Screening and ShieldingSelective screening and shielding of other cables and equipment inthe surrounding area may alleviate problems of interference.Screening of the entire welding installation may be considered forspecial applications. 1 Portions of the preceding text are contained in EN 60974-10:Electromagnetic Compatibility (EMC) product standard for arc welding equipment.

6

SAFETY

STATEMENT OF LIMITED LIABILITYThe Lincoln Electric Company (Lincoln) warrants to the end user(purchaser) of all new welding and cutting equipment, electrodeand flux (collectively called the Goods) that it will be free ofdefects in workmanship and material.

This warranty is void if the equipment has been subjected toimproper installation, improper care or abnormal operations.

WARRANTY PERIOD (1) (2) (3) (4) (5)Lincoln will assume both the parts and labor expense of correct-ing defects during the warranty period. All warranty periods startfrom the date of purchase from a Lincoln Authorized Distributor orLincoln Authorized Service Facility to the original end user orfrom the date of manufacture if proof of purchase is not availableand are as follows:

7 Years Main power rectifiers on all large non-inverter low frequency (50

and 60 Hz) type welders. (ACs, CVs, DCs - 250 amps andover - R3Rs)

3 Years All Lincoln welding machines, wirefeeders and plasma cutting

machines unless listed below. Arc Products Cross SlideAssembly, Slide Control, Seam Tracker and Viking Helmets.

2 Years Pro-Cut 25, Viking 1740 Helmet

1 Year Handy MIGs, Handy Core, Weld Pak HD

All water coolers (internal or external models)

All gas flow regulators.

All stick electrode, welding wire and flux. (Contact your localLincoln Sales Representative)

Addit ional MIGuarantee Warranty for SuperArc andSuperGlide MIG Wire Products. (Call 1-877-86-SUPER fordetails)

Arc welding and cutting robots and robotic controllers.

All Environmental Systems equipment, including portable units,central units and accessories. (Does not include consumableitems listed under 30 day warranty.)

All welding and cutting accessories including wire feed modules,undercarriages, field installed options that are sold separately,unattached options, welding supplies, standard accessory setsand Magnum products. (Does not include expendable partsand guns/torches listed under 90 and 30 day warranties)

All PRO TORCH TIG torches.

All plasma cutting torches.

All purchased replacement parts. (See Service Parts BusinessTerms and Conditions)

Magnum 250LX Spool Gun.

Panther and Cougar Push Pull Guns

VRTEX

90 Days All Lincoln gun and cable assemblies and the Magnum SG

spool guns.

30 Days All consumable items that may be used with the environmental

systems described above. This includes hoses, filters, beltsand hose adapters.

All Software.

Expendable Parts - Lincoln is not responsible for thereplacement of any expendable part that is required dueto normal wear.

No Specified Time Period Red Line apparel products are warranted against

manufacturing defects. Because applications vary, it is theusers responsibility to select the right product for eachapplication. Red Line apparel products are not subject towarranty after use.

Red Line safety glasses products are warranted to befree from manufacturing defects.

CONDITIONS OF WARRANTYTO OBTAIN WARRANTY COVERAGE:The purchaser must contact a Lincoln Authorized ServiceFacility (LASF). For assistance in locating a LASF logon towww.lincolnelectric.com/en-us/support/locator and useService Shop Locator.

Final determination of warranty on welding and cuttingproducts will be made by Lincoln or Lincolns AuthorizedService Facility.

WARRANTY REPAIR:If Lincoln or Lincolns Authorized Service Facility confirmsthe existence of a defect covered by this warranty, thedefect will be corrected by repair or replacement atLincolns option.

At Lincolns request, the purchaser must return, to Lincolnor its Authorized Service Facility, any Goods claimeddefective under Lincolns warranty.

FREIGHT COSTS:The purchaser is responsible for shipment to and from theLincoln Authorized Service Facility.

WARRANTY LIMITATIONSLINCOLN WILL NOT ACCEPT RESPONSIBILITY ORLIABILITY FOR REPAIRS MADE OUTSIDE OF ALINCOLN AUTHORIZED SERVICE FACILITY.

LINCOLNS LIABILITY UNDER THIS WARRANTYSHALL NOT EXCEED THE COST OF CORRECTING THEDEFECT OF THE LINCOLN PRODUCT.

LINCOLN WILL NOT BE LIABLE FOR INCIDENTAL ORCONSEQUENTIAL DAMAGES (SUCH AS LOSS OFBUSINESS, ETC.) CAUSED BY THE DEFECT OR THETIME INVOLVED TO CORRECT THE DEFECT.

THIS WRITTEN WARRANTY IS THE ONLY EXPRESSWARRANTY PROVIDED BY LINCOLN WITH RESPECTTO ITS PRODUCTS. WARRANTIES IMPLIED BY LAWSUCH AS THE WARRANTY OF MERCHANTABILITYARE LIMITED TO THE DURATION OF THIS LIMITEDWARRANTY FOR THE EQUIPMENT INVOLVED.

THIS WARRANTY GIVES THE PURCHASER SPECIFICLEGAL RIGHTS. THE PURCHASER MAY ALSO HAVEOTHER RIGHTS WHICH VARY FROM STATE TOSTATE.(1) Equipment manufactured for the Lincoln Electric Company is subject to

the warranty period of the original manufacturer.

(2) All engines and engine accessories are warranted by the engine orengine accessory manufacturer and are not covered by this warranty.

(3) AIR VANTAGE 500 compressors are warranted by the compressormanufacturer and not covered by this warranty.

(4) All MK Products are warranted thru MK Products and are not covered bythis warranty. Contact 1-800-787-9707.

(5) Lincoln Electric is not responsible for cable wear and consequentialdamage resulting from cable wear due to flexing and abrasion. End user isresponsible for routine inspection of cables for possible wear and toremedy the issue prior to cable failure.

LIMITED WARRANTY

March 13

IMWS1

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

________________________________________________________________________

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

________________________________________________________________________

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

________________________________________________________________________

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

________________________________________________________________________

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

________________________________________________________________________

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

Parts List .....................................................................................................P-542 Series________________________________________________________________________

INVERTEC V-350 PRO (CE)

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

INPUT AT RATED OUTPUT

OUTPUT CABLES, CONNECTIONS AND LIMITATIONS

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%)Not

Recommended6444403835

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-xs 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

-40C to +40COPERATING TEMPERATURE RANGE

-20C to +40C

Voltage

200220380400415440

Phases

333333

Input Amps300Amps @

32Volts(100%)413728222221

Input Amps350Amps @34Volts(60%)

484828272624

Line CordAWG

668888

MaximumFuse size

80A80A50A50A50A50A

Input 50/60 Hz Recommended

Recommended

Notes

Note 2Note 2

ProductName

InvertecV350-PRO

50/60 Hz

OrderingInformatiion

K1728-12CE

Input ACVoltage

200-220/380-400/415-440/

OutputRange

(continuous)

AMPS5-425

OpenCircuit

80 VDC

Rated DC OutputAmps/Volts/Duty Cycle

50/0Hz

350A / 34V / 60%3 Phase

320A / 33V/ 60%1 Phase

275A /31V / 100%1 Phase

300A / 32V / 100%3 Phase

A-2INSTALLATION A-2

SELECT SUITABLE LOCATIONThe Invertec invertec v-350 Pro (CE) will operate inharsh environments. Even so, it is important that sim-ple preventative measures are followed in order toassure long 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 v-350 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 the

Invertec 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.

POWERCORDCONNECTIONA 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 V-350 PRO (CE)

LN-10 Connection Instructions Turn the Invertec power switch "off". Connect the K1505 control cable from the LN-10 to

the 14-pin MS-style connector. Connect the electrode cable to the output terminal

of 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

REMOTE

POWER

OFF

ON

A AMPS

A

V VOLTS

WELD TERMINALS

SELECT

OUTPUTLINCOLNELECTRIC

INVERTEC V350-PRO

WARNINGWARNING

AVISO DE

PRECAUCION

ATTENTION

!

!

!

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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 of

polarity 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 of

polarity 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 (K624-2) 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 V350s 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 V350s 14-pin MS-style connector.

LN-742 Connection Instructions Turn the Invertec power switch "off" Either a K591 or a K593 Input cable assembly is

required to connect the LN-742 to the Invertec. Connect the control cable from the LN-742 to the

14-pin MS-style connector. Connect the electrode cable to the output terminal

of 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 to

the 14-pin MS-style connector. Connect the electrode cable to the output terminal

of 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

5.50

10.00

MOUNTING HOLE LOCATIONS

M19527

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

Electrode Cable

WorkClamp

semiautomaticwire feederK1870-1

, ,

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 V-350 PRO (CE) are operable inparallel 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-1

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.

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

------------------------------------------------------------------------WELDINGSPARKScan cause fire orexplosion. Keep flammable material away. Do not weld on closed containers.

------------------------------------------------------------------------ARCRAYS can burn eyes and skin. Wear eye, ear and body

protection.

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

See additional warning information atfront of this operators manual.

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

WARNING

GENERAL DESCRIPTION

PRODUCT 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), the

meter 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 displays

the 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 stated

above. When in TIG modes, this control sets the maximum

welding 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 source

has 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 and/or setting the arc control to9.5 or above will enable the arc-gouging mode. Theactual output current will depend on the size of car-bon used. The recommended maximum size carbonis 5/16"(7.9mm).

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.

Arc Gouging: Setting the output of the stick crispmode to 425 amps and/or setting the arc control to9.5 or above will enable the arc-gouging mode. Theactual output current will depend on the size of car-bon used. The recommended maximum size carbonis 5/16(7.9mm)


REMOTEREMOTEONON

REMOTEREMOTELOCALLOCAL

WELD TERMINALSWELD TERMINALS

OUTPUTOUTPUT

CONTROLCONTROL

SELECTSELECT SELECTSELECT

MPSMPSA OLTSOLTSV

1

6

52

3

4

8

7

11

10

12 9

FIGURE 1

B-3OPERATIONB-3 The Arc Control regulates the Arc Force to adjust

the 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 and WELD TERMINALSThe Invertec V350-PRO (CE) has auto sensing ofremote output controls.If after connecting or removinga remote, the Invertec V350-PRO (CE) did not config-ured the way you would like the local or remote con-trol settings can be changed by pushing the OUTPUTCONTROL or WELD TERMINAL button. (A user can-not select between the 6 and 14-pin MS-style connec-tor.)

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 a

remote 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 if

a remote is connected to it. The WELD TERMINAL control will default to ON

with or without a remote connected.

Types of Remote OUTPUT CONTROL The Invertec V350-PRO (CE)s Output Control can

be 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 lead

76 (wiper) is at the end of the potentiometer that isconnected to 75. The machines 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 InvertecV350-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 Terminals

can 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 for

processes 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 invertec v-350 Pro (CE) provides the hard-ware to power and connect to 24 or 42 wire feeders.

K857 Remote Output ControlK814 Arc Start SwitchK812 Hand Operated AmptrolK870 Foot Operated AmptrolK428-2, K446, K449-3 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 mm1 in.

WELDING CABLEBOOT

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.

PERIODICMAINTENANCE

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 or

electrode with skin or wet clothing. Insulate yourself from work and

ground 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 longsleeves when servicing.

------------------------------------------------------------------------See additional warning informationthroughout this operators 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.DONOTTOUCHTERMINALS. 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 CAUSE

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 wont weld, cant 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 CAUSE

RECOMMENDEDCOURSE OF ACTION

Thermal symbol is lit

Wire feeder wont 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 35 CAP bank B over voltage. is connected for the input 37 Soft start Failed. power being 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.

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Invertec v350 Pro

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