IM679-A INVERTEC V350-PRO February, 2001...INVERTEC V350-PRO OPERATOR’S MANUAL For use with...

INVERTEC V350-PRO

OPERATOR’S MANUAL

For use with machines Code 10651, 10669, 10852

IM679-AFebruary, 2001

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

OFF

ON

A AMPS

A

V VOLTS

WELD TERMINALS

SELECT

OUTPUTLINCOLNELECTRIC

INVERTEC V350-PRO

WARNINGWARNING

AVISO DE

PRECAUCION

ATTENTION

!

!

!

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Date of Purchase:Serial Number:Code Number:Model:Where Purchased:

• 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 •

R

IEC 974-1IP21S

ISO 9001

CERTIFICATE NUMBER: 30273

Designed and Manufactured Under aQuality Program Certified byABS Quality Evaluations, Inc.to ISO 9001 Requirements.

QMSANSI RAB

Copyright © 2001 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 fumes outdoors.

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

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

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

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

____________________________________________________

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

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

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

___________________________________________________1.g. To prevent accidentally starting gasoline engines while

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

iSAFETYi

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

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

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

WARNING

Mar ‘95

ELECTRIC AND MAGNETIC FIELDSmay be dangerous

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

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

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

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

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

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

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

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

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

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

CALIFORNIA PROPOSITION 65 WARNINGS

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

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

The Above For Diesel Engines The Above For Gasoline Engines

iiSAFETYii

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

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

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

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

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

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

gloves to insulate hands.

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

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

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

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

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

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

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

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

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

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

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

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

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

fumes and gases away from the breathing zone. Whenwelding with electrodes which require specialventilation such as stainless or hard facing (seeinstructions on container or MSDS) or on lead orcadmium plated steel and other metals or coatingswhich produce highly toxic fumes, keep exposure aslow as possible and below Threshold Limit Values (TLV)using local exhaust or mechanical ventilation. Inconfined spaces or in some circumstances, outdoors, arespirator may be required. Additional precautions arealso required when welding on galvanized steel.

5.b. 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 products.

5.c. 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.d. 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.e. Also see item 1.b. Mar ‘95

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.

iiiSAFETYiii

Mar ‘95

WELDING SPARKS 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 hot

materials 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.

ivSAFETYiv

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 dans les 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 les

zones 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.

Mar. ‘93

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

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

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

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

Model Name & Number _____________________________________

Code & Serial Number _____________________________________

Date of Purchase _____________________________________

Whenever you request replacement parts for or information on this equipment always supply the informationyou have recorded above.

vv

viTABLE 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 ....................................................A-2Remote Control of Invertec .............................................................................A-3Undercarriage Mountings................................................................................A-3Parallel Operations..........................................................................................A-4Ouick Disconnect Plugs ..................................................................................A-4

________________________________________________________________________

Operation .........................................................................................................Section BSafety Precautions ................................................................................................B-1General Description ..............................................................................................B-1Duty Cycle .............................................................................................................B-1Operational Features and Controls........................................................................B-1 Upper Control Panel.......................................................................................B-1, B-2Hidden Middle Control Panel ...................................................................B-2 thru B-7Lower Case Panel .................................................................................................B-8Remote Control of the Output Control and Weld Terminals ..................................B-8Design Features and Advantages .........................................................................B-9Auxiliary Power ......................................................................................................B-9Limitations..............................................................................................................B-9Recommended Processes ....................................................................................B-9

_______________________________________________________________________

Accessories .....................................................................................................Section COptions / Accessories............................................................................................C-1Construction Version .............................................................................................C-1Factory and Advance Process Version ..............................................................................C-1Field Installed Options...........................................................................................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 ......................................................................................................P369 Series________________________________________________________________________

V350-PRO

A-1INSTALLATION A-1

TECHNICAL SPECIFICATIONS - INVERTEC V350-PROINPUT AC VOLTAGE & DC OUTPUT

Product Ordering Input AC Rated DC Output Output Weight DimensionsName Information Voltage Amps/Volts/Duty Cycle Range with Cord HxWxD

(continuous)

K1728-1 FactoryFactory 82.5lbs

200 350A / 34V / 60% (37.4 kg) 14.8” x 13.3” xInvertec K1728-2 208-230/ 27.8”* V350- Construction 380-400/ AMPS Construction (373 x 338 xPRO 415-460/ 5-425 81.5lbs. 706*)mm

60/50 Hz K1728-4 575 275A / 31V /100% (36.9 kg)Advance 1& 3 Phase * Includes HandlesProcess 60/50 Hz Advance Process

82.5lbs (37.4 kg)

* Overall Length Including Handle, 27.8” (706mm) without handle.

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

V350-PRO INPUT CURRENT

Note 2. When operating on these inputs, the line cord should be changed to an input conductor of 6 AWG or larger.

Recommended Fuse Sizes Based On The U.S. National Electrical Code And Maximum Machine OutputsInput 50/60 Hz Output RecommendedVoltage Phases 275Amps@ 350Amps@ Line Cord Size Fuse Size Notes

31Volts(100%) 34Volts(60%)200 1 Not Not --- --- Note 1

Recommended Recommended208 1 70 94 2 125A Note 2230 1 62 85 4 125A Note 2380 1 Not Not --- --- Note 1

Recommended Recommended400 1 Not Not --- --- Note 1

Recommended Recommended415 1 38 54 6 80A Note 2460 1 34 42 8 70A575 1 27 37 8 50A

200 3 37 50 8 80A Note 2208 3 36 50 6 80A Note 2230 3 31 42 8 70A380 3 21 28 8 50A400 3 20 27 8 50A415 3 19 26 8 50A460 3 17 23 8 50A575 3 14 18 8 35A

Note 1. Not rated is indicated by 4-x's in the box on the rating plate.

AWG

A-2INSTALLATION A-2

SELECT SUITABLE LOCATION

The Invertec V350-PRO will operate in harsh environ-ments. Even so, it is important that simple preventa-tive measures are followed in order to assure long lifeand reliable operation.

• The machine must be located where there is free cir-culation of clean air such that air movement in theback, 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 directly understationary or fixed electrical equipment, that surfaceshall be covered with a steel plate at least.06”(1.6mm) thick, which shall extend not less than5.90”(150mm) beyond the equipment on all sides.

STACKINGV350-PRO 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. Installation should be made inaccordance with the appropriate National ElectricalCode, all local codes and the information detailedbelow.

• When received directly from the factory, multiplevoltage machines are internally connected for460VAC. If 460VAC is the desired input, then themachine may be connected to the power systemwithout any setup required inside the machine.

• Initial 200VAC - 415VAC and 575VAC operation willrequire an Input voltage panel setup.

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 U.S.National ElectricalCode.

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

WARNING

• Initial 200VAC - 415VAC and 575VAC operation willrequire an Input 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 to380-575.

• Move the "A" lead to the appropriate terminal.

POWER CORD CONNECTIONA 10 ft. power cord is provided and wired into themachine. Follow the power cord connection instruc-tions.

• Incorrect connection may result in equipmentdamage.

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

Single Phase InputConnect green lead to ground per National ElectricalCode.Connect black and white leads to power.Wrap red lead with tape to provide 600V insulation.Three Phase InputConnect green lead to ground per National ElectricCode.Connect black, red and white leads to power.

CONNECTIONS OF WIRE FEEDERS TO V350-PRO LN-25 Connection Instructions (Factory, Construction & Advance Process versionscan be connected.-Not recommended for PulseWelding in the Advance Process version).• 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 theK1728-1 and K1728-4 versions of the V350. The 6-Pin(K444-1) and 14-pin (K444-2) remotes can be connecteddirectly to the 6-pin & 14-pin MS-style connectors. The 42Volt Remote Voltage and Output Control (K624-1) Kit canbe connected to the V350’s 24/42 VAC connector usingRemote Control Cable assembly K627- [ ]. LN-25s with aK431-1 remote kit can be connected to the V350’s 24/42VAC connector using a K432 cable and K876 adapter.(See connection diagram S19899). Or the K432 cablecould be modified with a K867 Universal Adapter Plug(See connection diagram S19405) to connect it to theV350’s 24/42 VAC connector.

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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GREENRED

BLACK

WHITE

V350-PRO

CAUTION

CAUTION

A-3INSTALLATION A-3

V350-PRO

LN-7 Connection InstructionsAn LN-7 can only be used with the “Factory” &“Advance Process” versions of the 350-Pro. • Turn the Invertec power switch "off".• Connect the K480 control cable from the LN-7 to the

115VAC 14-pin wire feeder MS-style connector on therear of the Invertec.

• Connect the electrode cable to the output terminal ofthe polarity required by electrode. Connect the worklead to the other terminal.

• Set the meter polarity switch on the front of the Invertecto coincide with wire feeder polarity used. The wirefeeder will now display the welding voltage.

• If K480 is not available, see connection diagramS19404 for modification of K291 or K404 LN-7 inputcable with K867 Universal Adapter Plug.

• If a remote control such as K857 is to be used with theLN-7, the remote can be connected directly to the 6-pinMS-style connector on the front of the Invertec or use aK864 adapter to connect the LN-7 and the remote tothe 115VAC 14-pin MS-style connector on the rear ofthe Invertec. (See connection diagram S19901)

LN-10 Connection InstructionsAn LN-10 can only be used with the “Factory” &“Advance Process” versions of the 350-Pro.• Turn the Invertec power switch "off"• Connect the K1505 control cable from the LN-10 to the

Invertec 24/42VAC 14-pin MS-style connector on therear of the Invertec.

• Connect the electrode cable to the output terminal ofpolarity required by the electrode. Connect the worklead to the other terminal.

• Set the meter polarity switch on the front of the Invertecto coincide with wire feeder polarity used.

• See the LN-10 manual for details on accessing ControlDIP Switch

LN-742 Connection InstructionsAn LN-742 can only be used with the “Factory” &“Advance Process” versions of the 350-Pro.• 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

24/42 VAC 14-pin wire feeder MS-style connectoron the rear of the Invertec.

• 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 with theLN-742, the remote can be connected directly to the 6-pin MS-style connector on the front of the Invertec or usea K864 adapter to connect the LN-742 and the remote tothe 24/42VAC 14-pin wire feeder MS-style connector onthe rear of the Invertec.

Cobramatic Connection InstructionsA Cobramatic can only be used with the “Factory” &“Advance Process” versions of the 350-Pro.• Turn the Invertec power switch "off"• Connect the control cable from the Cobramatic to

the 24/42 VAC 14-pin wire feeder MS-style con-nector on the rear of the Invertec.

• 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.

• If a remote control such as K857 is to be used withthe 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 24/42VAC14-pin wire feeder MS-style connector on the rearof the Invertec.

TIG Module K930-2The TIG Module connects to the K1728-1 and K1728-4V350-Pro versions with a K936-1 (9-14 pin) controlcable. Connect the K936-1 to the 115VAC WireFeeder Ms-style connector on the rear of the V350-Pro.

The TIG Module can also be used with the K1728-2V350 Construction version. A K936-4 control cable isrequired to supply 115VAC to the TIG Module froman external 115VAC supply.

General Instructions for Connection of WireFeeders to V350-ProWire feeders other than those listed above may beused provided that the auxiliary power supply rating ofthe V350-Pro is not exceeded. K867 universaladapter plug is required. See connection diagramS24985 on page F-4.

REMOTE CONTROL OF INVERTECRemote 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

8/00

N NOT PROTRUDE MORE THAN 0.5 INCHES INSIDE THE MACHINE.

11.84

3.50

A-4INSTALLATION A-4

V350-PRO

QUICK DISCONNECT PLUGS

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

1. Remote 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

PARALLEL OPERATIONThe V350-Pro are operable in parallel in CC mode.For best results, the currents of each machine shouldbe reasonably well shared. As an example, with twomachines set up in parallel for a 400 amp procedure,each machine should be set to deliver approximately200 amps, not 300 amps from one and 100 ampsfrom the other. This will minimize nuisance shutdownconditions. In general, more than two machines inparallel will not be effective due to the voltage require-ments of procedures in that power range.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 voltage or current. The arc controlpots should be kept identical on the two machines.

B-1OPERATION

V350-PRO

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.

------------------------------------------------------------------------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 DESCRIPTION

The Invertec V350-Pro offers multi-process CV, CC,and DC welding and is rated 350 amps, 34 volts at a60% duty cycle. The V350-Pro is available in severalversions of wire feeder connections. In the differentconfigurations, the V350-Pro is available in either aConstruction version (no wire feeder connection andauxiliary power) and a Factory & Advance Processversions (includes wire feeder connection and relatedpower).

DUTY CYCLE

The V350-Pro is rated at 350 amps, 60% duty cycle(based on a 10 minute cycle). It is also 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.

For the Construction version all modes ON.For the Factory and Advanced Process versionSTICK = ON TIG and CV = ON or REMOTE depending if remoteoutput controls are connected to the machine.

B-2OPERATIONB-2

For all versions, these trigger modes can be over-ridden(switched) with the WELD TERMINALS push button. Whenchanged, the unit will power up in the configuration it was inwhen it was last powered down.

5. THERMAL• This status light indicates when the power source has

been driven into thermal overload. If the output terminalswere "ON", the "ON" light will blink indicating that the out-put will be turned back on once the unit cools down to anacceptable temperature level. If the unit was operating inthe "REMOTE" mode, the trigger will need to be openedbefore or after the thermal has cleared and closed afterthe machine has cooled down to an acceptable tempera-ture to establish output.

6. CONTROL-REMOTE / LOCAL• Two status lights indicate the location of output control as

pre-determined by the power sources auto-configure sys-tem.

• The LOCAL display will be lit when control is at the powersource.

• The REMOTE display will be lit when a remote pot/controlis detected.

These Output Control configurations can be overridden(switched) with the CONTROL push button. Whenchanged, the unit will power up in the configuration it was inwhen it was last powered down.

Hidden Middle Control Panel – Process Set UpPanel

7. WELD MODE SELECT - FACTORY AND CONSTRUCTION (See Figure 1)

The Mode Control button selects from the followingwelding modes.

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.

V350-PRO

OFFOFF

OFF OFF OFFONON

HOHOT STT STARARTWELD MODEWELD MODE ARC CONTRARC CONTROLOL

CC-STICK SOFTCC-STICK SOFT

CC-STICK CRISPCC-STICK CRISP

TIG GTTIG GTAW

CVCV-WIRE-WIRE

CVCV-FLUX CORED-FLUX CORED

-4 +4+4

+2+2-20

-6 +6+6

-10SOFTSOFT CRISPCRISP

+10+10

-8 +8+8

54

3

2

1

0

6

1010

9

8

7

SELECTSELECT

REMOREMOTETEONON

REMOREMOTETELOCALLOCAL

m

WELDWELD TERMINALSTERMINALS

OUTPUTOUTPUT

CONTRCONTROLOL

SELECTSELECT SELECTSELECT

MPSMPSA OLOLTSV

FACTOR AND CONSTRUCTION VERSION

1

6

52

3

4

8

7

11

10

12 9

FIGURE 1

B-3OPERATIONB-3

• The Arc Control regulates the relative Slope of theprocess. Slope dynamically controls the force thearc has to penetrate an open root. At the minimumsetting, Arc Control is very soft and is similar to theStick Soft mode. At the maximum setting, the slopeis reduced, the OCV is reduced, and the operatorhas full control off the arc force required to pene-trate an open root joint. For vertical down, open rootpipe welding applications, the recommended settingis between 8 and 10.

• During welding, a boost circuit increases the avail-able voltage to minimize pop outs. The boost circuitis independent of the OCV and only operates whenan arc is lit.

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 (optionalequipment required) assisted start mode.• The Hot Start control selects the starting mode

desired. 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 cur-rent.When the tungsten is lifted, an arc is initiated andthe output is regulated at the preset value. Hot startsettings between 0 and 5 regulate the arc initiationcurrent. A setting of 5 results in the most positivearc initiation. A setting of 0 reduces hot start.

• Hot Start settings between 5 and 10, select highfrequency assisted starting TIG mode. In thisrange, the OCV of the machine is controlledbetween 50 and 70 volts. If using the Lincoln K930-1 TIG Module, set the Hot start to 10 for maximumOCV.

• The Arc Control is not used in the TIG mode.

CV-WIRE: The CV-WIRE mode features continuouscontrol from 10 to 40 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-FLUX CORED: The CV-FLUX CORED mode fea-tures 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.

V350-PRO

B-4OPERATIONB-4

7A. ADVANCED PROCESS PANEL (See Figure 2)

To program Welding modes. Select knob is used toScroll through all Welding modes. The Memory buttonis used to store and access Welding modes into loca-tions M1 thru M8.

Modes:In addition to the 5 welding modes described in SEC-TION 7, the Advance Process Panel allows you toselect the Following additional modes.

• Constant Power modeIn the Power Mode;The work point will be in the Volts window. TheAmp window will have CP displayed indicatingConstant Power. Once current starts flowing andduring the 5 second “Hold” feature the displays willshow Volts and Amps respectively.

• GougeAir Carbon Arc Cutting (CAC-A) is a physical meansof removing base metal or weld metal by using acarbon electrode, an electric arc and compressedair.

V350-PRO

• Pulsed ModesIn Pulse Modes;The work point will be in the Amps window andshould be set close to the wire feed speed of thewire feeder in inches per minute. The Volts windowwill have SPd displayed indicating Wire FeedSpeed. Once current starts flowing and during the 5second “Hold” feature the displays will show ampsand volts.

Pulse Mode features that are displayed whileselecting a Welding pulse mode are listed below;Steel - .030, .035, .045, .052 – Argon Blends Stainless Steel - .030, .035, .045 – Argon Blends &Helium/Argon Blends Aluminum - .035, 3/64, 1/16 – 4043 & 5356 Metal Core - .045, .052 – Argon Blends Nickel - .035, .045 – Argon/Helium blends

MEMORMEMORY

MEMORY BUTTON (M1 THRU M8)

OUTPUT KNOB

SELECT BUTTON(HOT START OR ARC CONTROL)OL)

ADJUST KNOB(0 THRU 10-HOT START)(-10 THRU 0 AND 0 THRU +10-ARC CONTRU +10-ARC CONTROL) SELECT KNOB

(SCOLLS WELDING PRWELDING PROCESSES)

SELECTSELECT ADJUSTADJUSTSELECTSELECT

7AREMOTE

ONREMOTELOCAL

WELDWELD TERMINALSTERMINALS

OUTPUTOUTPUT

CONTRCONTROLOL

SELECTSELECT SELECTSELECT

MPSMPSA OLOLTSV

FIGURE 2

B-5OPERATIONB-5

V350-PRO

CONTROLS: (See Figure 2)

The MEMORY button and SELECT knob are usedtogether to select a welding process an store it in (M1thru M8). The SELECT knob scrolls through the,welding process modes and memory modes M1 thruM8. The MEMORY button stores the welding processin memory.• SELECT button" (The right button) selects between

the "Hot Start" or "Arc Control". The < will indicatethe active feature shown below.

Right Digital Window"Hot Start" (-10 to 0 +10)"Arc Control" (0 to 10) <

• The ADJUST knob adjusts the desired settings forthe Hot Start or Arc Control feature that is active.

WELDING PROCESS MODES AVAILIABLE

Stick SMAW, TIG GTAWGouge CAG, CV MIG GMAWCV Flux Core, Pulse MIG

ELECTRODE MATERIAL

Steel, Metal Core, Stainless, Aluminum, Nickel

EXAMPLE OF SAVING WELDING MODES TOMEMORY

The following example is how to select Pulse MIGusing .035 steel and store it into memory.

1. Turn the Select knob until welding process is dis-played.

RIGHT WINDOW LEFT WINDOWPulse MIG Argon BlendsSteel .035

2. Wait two seconds and the right window will displayArc Control on the second line on the right side.

Pulse MIG Argon BlendsSteel .035 Arc Cntrl ### <

3. SPd is displayed in the upper right Volts window.The left Amps window matches the desired wirefeed speed that is set on the wire feeder. Adjust theOutput knob until desired number is displayed.

4. Start welding. If the arc length is too short turn theOutput knob up. If the arc length is too long turnthe Output knob down.

The Arc Control which is displayed in the right digitalwindow can be used to fine-tune the arc length andcharacteristics.

5. After all adjustments have been made press andhold the Memory button until the display changes.The right and the left window will display whatmemory to save in, lets say M1. To store in M1push the Memory button again to save the PulseMig mode to memory M1.

6. The display in the digital windows read as follows:M1 Pulse MIG Argon Blends

Steel .035 Arc Cntrl 1.2

7. Saving or entering a second welding mode to amemory, M2. Turn the Select knob until thedesired welding process mode is displayed in rightdigital window. Then follow steps 1 thru 6.

Press the Memory button till the digital windowreads,

Save to MEMM2

Press the Memory button again and the NewWelding process is saved in M2.

8. Adjust the output control to the correct wire feedsetting and the V350-PRO is ready to weld again.(Note: The wire feed speed setting is not stored inmemory and will need to be reset.)

9. Adjust the Arc Control and note that the M1 goesaway indicating that the V350-PRO settings nolonger match what is stored in memory. Going backto the original settings will not bring the M1 back.You will need to push the Memory button to recallthe original settings in M1.

Note: After all memory’s M1 thru M8 are used and thewelder needs to store another welding process, a newwelding process will overwrite what was originally inthe memory and will read,

Save to MEMM1 Overwrite

M1 which stored Pulse Mig is Overwritten with thenew welding process.

B-6OPERATIONB-6

WELD MODE DETAILS:

V350-PRO

Mode Range Comments

Stick Soft 5 - 425 amps The stick soft mode is the best selection for general stick applications.Arc Control = Arc ForceHot Start = Initial hot start current (min = start a match set amps, Max. =

greatest hot start current) During hot start, arc force is set athigh and is fast response.

For gouging applications: Turn current up to 425 amps.

Stick Crisp 5 - 425 amps The stick crisp mode features an aggressive arc force routine well suit-ed for Exx10, Exx11 series electrodes.Arc Control = Arc ForceHot Start = Initial hot start current (Mid range = welding current and will

vary up and down with knobcontrol.) During hot start, arcforce is set at high and is fast response.

For gouging applications: Turn current up to 425 amps.

GTAW (Tig mode) 5 - 425 amps The tig mode produces a soft, steady constant current waveform foreither touch start or high frequency assisted start DC GTAW applica-tions.Hot Start = Min to Mid range = Touch start with low OCVMid to Max range = High frequency assistedstarting with adjustableOCV up to 70 volts.

GMAW - CV 10 - 45 volts The GMAW - CV mode is the best selection for general MIG welding, Metal core, and gas shielded applications.Arc Control = Pinch (Min = min pinch, softest arc),

(Max = max pinch, crispest arc)

Gouging 60 - 425 amps The gouging mode is a low power version of other Lincoln welding equipment gouging programs, for example a PowerWave 455.

GMAW - Power 1 - 18 The GMAW Power mode features good stable short arc performancewhen welding small diameter (.025 and .030 steel & stainless) wires atlow procedures. This mode also performs well welding aluminum in thespray mode.

FCAW-SS 10 - 45 volts The FCAW-SS mode is designed for Self Shielded Innershield productsthat require tight voltage control. For example; the NR 203 series or NR207)Arc Control = Pinch (Min = min pinch, softest arc),

(Max = max pinch, crispest arc, )

B-7OPERATIONB-7

PULSE PROGRAMS:

V350-PRO

.030 Steel 65 - 1200

.035 Steel 55 - 800

.045 Steel 50 - 700

.052 Steel 75 - 550

.045 Metal Core 50 - 650

.052 Metal Core 50 - 500

.030 Stainless Ar Blends 85 - 770

.030 Stainless He Ar CO2 110 - 770





.035 Aluminum 4043 100 - 700

.035 Aluminum 5356 115 - 7403/64 Aluminum 4043 80 - 5503/64 Aluminum 5356 85 - 7001/16 Aluminum 4043 75 - 3251/16 Aluminum 5356 75 - 450.035 Nickel Alloys 80 - 700

.045 Nickel Alloys 75 - 550

The V350 non synergic pulse programs allow independent controlof the wire feed speed and the arc length. The V350 Output ControlKnob adjusts the arc length similar to other processes. When oper-ating in a pulse mode, the V350 displays a reference number asthe relative arc length. (Range given in center column.) Setting thisreference number to the actual wire feed speed of the feeder willproduct close to the right arc length. The V350's output knob canthen be adjusted to dial in the correct arc length.

The Arc Control knob will fine tune the arc length to obtain thedesired results.

The Nickel Alloy pulse programs are non adaptive. The operatorsets the output control knob to deliver the correct arc length atdesired wire feed speed and stick out. While welding, the operatormanipulates the stick out to maintain the correct arc length. Thismethod of operation produces very stable arc performance consid-ering the nature of nickel alloys.

LN-10/DH-10 Wire Feeder Compatibility Note:

The LN-10 and DH-10 feeders can be used to pulseweld and in the power mode with the panel. The dis-plays on the LN-10 & DH-10 do not show the wirefeed speed or power.

8. HOT START and ARC CONTROL featureshave different functions depending on the weldingMode that is active. Each feature is described underthe welding mode heading. (See Item 7 or 7.A forspecified Mode Operations) (See Figure 1.A or2.A)

B-8OPERATIONB-8

V350-PRO

LOWER CASE PANELThe 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 connectors for remote control.

REMOTE CONTROL of the OUTPUT CONTROL andWELD TERMINALS

The Invertec V350-Pro has auto sensing of remoteoutput controls.If after connecting or removing aremote, the Invertec V350-Pro did not configured theway you would like the local or remote control settingscan be changed by pushing the OUTPUT CONTROLor WELD TERMINAL button. (A user cannot selectbetween the 6 and 14 pin MS-style connectors.)

CV modes• The remote will default to the 14-pin MS-style con-

nectors remote if a remote is connected to either ofthe 14-pin MS-style connectors and the 6-pin MS-style connectors. Note: Only one of the 14-pin MS-style connectors can have a remote control connect-ed at a time. If no remote is connected to either ofthe 14-pin MS-style connectors then the remote willdefault to the 6-pin MS-style connectors if a remoteis connected to it.

• In all of the CV modes, the WELD TERMINAL con-trol will default to REMOTE.

TIG mode• The remote will default to the 6-pin MS-style if a

remote control is connected to the 6-pin MS-styleand one of the 14-pin MS-style connectors. If aremote is not connected to the 6-pin MS-style con-nector then the remote will default to the 14-pin MS-style connector if a remote is connected to one ofthe 14-pin MS-style connector.

• If a remote control is connected to any of the ms-style s the WELD TERMINAL control will default toREMOTE. If there are not any remote controldevices attached the WELD TERMINAL control willdefault to ON.

CC-Stick modes • The remote will default to only the 6-pin MS-style

connector 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’s Output Control can be con-

trolled by either a potentiometer connected between77 & 75 with the wiper connected to 76 or a 0V to10V DC supply connected between 76 & 75. (76needs 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 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 InvertecV350-Pro’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 or the welding output) The supplyshould be capable of supplying at least 20mA.

• 0 volts supplied to 76 will set the Invertec V350-Proto minimum output for the mode that has beenselected while 10 volts supplied to 76 will set theInvertec V350-Pro to the maximum output for themode. (Note: In TIG mode, 10 volts supplied to lead76 would produce the current that has been set bythe Invertec V350-Pro’s front panel Output Control.)

Types of Remote WELD TERMINAL Control• The Invertec V350-Pro’s Weld Terminals can be

controlled from each of the MS-style connectors.The circuit has a nominal OCV of 15VDC andrequires a dry contact closure (less than 100 ohms)to activate the output of the Invertec V350-Pro.

• 14-Pin MS-style connectors, the Weld Terminals arecontrolled from pins C (lead 2) and pin D (lead 4).Pin C is positive.

• 6-Pin MS-style connectors, the Weld Terminals arecontrolled from pin D (lead 2) and pin E (lead 4). Inthe 6-pin ms-style connectors pin D is positive.

B-9OPERATIONB-9

V350-PRO

DESIGN FEATURES and ADVANTAGES • Multiple process DC output range: 5 - 425 amps• Presettable welding outputs.• Built-in Line Voltage Compensation holds the output

constant over +/- 10% input fluctuations.• State of the art inverter technology yields high

power efficiency, excellent welding performance,lightweight, and compact design.

• Utilizes microprocessor control.• Electronic over current protection.• Input over voltage protection• Manual reconnect switch located on the back panel

with a clear reconnect door to allow easy determina-tion of input configuration. The reconnect door isfastened with 1/4-turn connectors that allow quickand easy access to the reconnect area. Circuitbreaker protected auxiliary.

• System Self Configure. The power source analyzesthe remote controls connected to the ms-style con-nectors and the desired welding mode to properlydetermine the location of trigger and output control.

• Modular options for easy upgrades• Back lit Status Lights for improved error communi-

cation• Circuit Breaker Input Switch• F.A.N. (fan as needed). Cooling fan runs only when

necessary• Thermostatically protected.• Designed to the IEC 974-1 Standard.• IP21S protection rating with potted PC boards for

enhanced ruggedness/reliability.• Modular construction for easy servicing.• Aluminum Chassis and Wraparound• 10 Ft. Power Cord included.

AUXILIARY POWER• 115VAC, 42VAC and 24VAC power is available

from the two 14-pin MS-style connectors on the rearof the unit. (K1728-2 Construction model of theInvertec V350-Pro does not have the 14-pin MS-style connector) These supplies are intended tosupply power for auxiliary equipment like wire feed-ers and the TIG Module.

• 115VAC supply is rated at 2 amps and is protected by a2.5 amp breaker located by the 14-pin connector.

• 42 VAC supply is rated at 5.5 amps and is protectedby a 6 amp breaker located by the 14-pin connector.

• 24 VAC supply is rated at 5.5 amps and is protectedby a 6 amp breaker located by the 14-pin connector.

LIMITATIONS• The V350-Pro is not recommended for processes

other than those listed.• The V350-Pro can only be used with the recom-

mended equipment and options.

RECOMMENDED PROCESSESProperly equipped, the Invertec V350-Pro supportsGMAW-P, FCAW, SMAW, GTAW and CAC-Aprocesses for a variety of materials, including mildsteel, stainless steel, cored wires, and aluminum.

C-1ACCESSORIESC-1

OPTIONS / ACCESSORIES

CONSTRUCTION VERSION – K1728-2• All welding modes for this model run with local out-

put control and weld terminals ON (e.g. Stick, TIG,LN25 off the arc).K930-1 TIG ModuleK428,K446, K449 LN-25(Off the Arc)

• Undercarriage – K1764-1

• Valet Style Undercarriage – K1838-1

FACTORY VERSION – K1728-1 andADVANCED PROCESS VERSION – K1728-4

• The factory model is the construction model with theaddition of the Wire Feeder/Remote Adapter.

• In this form, the V350-Pro provides the hardware topower and connect to 24, 42 or 115 VAC wire feeders.

• The advanced process model is the factory modelwith an advanced process panel installed in place ofthe standard mode panel. In this form, the V350-Proprovides access to the 5 standard weld modes (StickSoft, Stick Crisp, TIG, CV-Wire, CV-Innershield),gouge, constant power and pulse MIG weld modes.

K857 Remote Output ControlK814 Arc Start SwitchK812 Hand Operated AmptrolK870 Foot Operated Amptrol

Note: All of the above remote controls connect directlyto the 6-pin MS-style connector on the front of theV350-Pro or with either a K864 or K876 adapter andconnect it to either of the14 pin wire feeder MS-styleconnectors on the rear of the V350-Pro. (See Diagramin Section F-1)

K930-[ ] TIG ModuleK428, K446, K449 LN-25 *K617 (-1 or -2) K618 (-1 or -2) LN-742K440 (-1), K567-1 LN-7 GMAK1559-1, K1564-1 LN-10K1499-1, K1521-1 DH-10

*Not recommended for pulse welding

FIELD INSTALLED OPTIONS

Options for K1728-1, and -4 Factory V350’s

• TIG Gas Control Kit – K1762-1

V350-PR0

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

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.

V350-PRO

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 other

parts to explode when power is applied.

• Always wear a face shield and longsleeves when servicing.

------------------------------------------------------------------------See additional warning informationthroughout this operator’s-----------------------------------------------------------

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

V350-PRO

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


V350-PRO


CAUTION

Observe all Safety Guidelines detailed throughout this manualPROBLEMS

(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 wil l not power up (Nolights)

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

1. Contact your local authorizedLincoln Electric Field Service facil-ity for technical assistance.

1. Make certain that the fuses orbreakers are properly sized. Seeinstallation section of the manualfor recommended fuse and break-er sizes.

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

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

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 accordingto diagram on reconnect cover.

1. If the displays show an Err ###see the fault section for correctiveaction.

2. If the displays are not lit refer tomachine will not power up section.

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.

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


V350-PRO

Observe all Safety Guidelines detailed throughout this manual


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 operation2. Check for material blocking intake

or exhaust louvers.

1. Check circuit breakers by the wirefeeder receptacles on the rear ofthe machine. Reset

2. Check to make sure the wire feed-er is connected to the correct wirefeeder receptacle. (115VAC or24/42VAC)

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

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


V350-PRO



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


V350-PRO



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 workpoint.

"####" "----" A constant current weld mode is selected, machine output is off.The numeric value in the left display is either the workpoint or aworkpoint 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 workpoint.

"####" "####" (blinking) weld just finished – the average arc voltage and current will beblinked for 5 seconds following a weld. If the workpoint changes dur-ing this 5 second period, the display will revert to the above mode.

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NOTES

V350-PRO

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 •

IM679-A INVERTEC V350-PRO February, 2001...INVERTEC V350-PRO OPERATOR’S MANUAL For use with...

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Transcript of IM679-A INVERTEC V350-PRO February, 2001...INVERTEC V350-PRO OPERATOR’S MANUAL For use with...