Invertec v350 Pro

SVM158-AApril, 2002

Safety Depends on You

Lincoln arc welding and cuttingequipment is designed and builtwith safety in mind. However,your overall safety can beincreased by proper installation. . . and thoughtful operation onyour part. DO NOT INSTALL,OPERATE OR REPAIR THISEQUIPMENT WITHOUT READ-ING THIS MANUAL AND THESAFETY PRECAUTIONS CON-TAINED THROUGHOUT. And,most importantly, think beforeyou act and be careful.

SERVICE MANUAL

For use with machine code numbers 10873, 10874, 10876

INVERTEC V350-PRO

WARNINGWARNING

AVISO DEPRECAUCION

ATTENTION

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WARNING

REMOTE

POWER

OFF

ON

A AMPS

A

V VOLTS

WELD TERMINALS

SELECT

OUTPUT

HOT START

ARC CONTROL-4

+4

+2

-2 0

-6

+6-10SOFT

CRISP

+10

-8

+8

543

2

1

0

6

109

8

7

SELECT

CC-STICK 7018CC-STICK 6010TIG GTAWCV

-WIRECV-FLUX CORED

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Sales and Service through Subsidiaries and Distributors Worldwide

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

World's Leader in Welding and Cutting Products

Copyright 2002 Lincoln Global Inc.

RETURN TO MAIN INDEX

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iSAFETYi

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 weld-

ing arc or when the engine is running. Stopthe engine and allow it to cool before refuel-ing to prevent spilled fuel from vaporizing oncontact with hot engine parts and igniting. Donot spill fuel when filling tank. If fuel is spilled,wipe it up and do not start engine until fumeshave been eliminated.

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

tion and in good repair.Keep hands, hair, clothing and toolsaway from V-belts, gears, fans and all other moving partswhen 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.

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. Box 351040,Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of Arc Welding Safety booklet E205 is available from theLincoln 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

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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 can kill.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-freegloves 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 manufacturers instructions for thisequipment and the consumables to be used, including thematerial safety data sheet (MSDS) and follow youremployers safety practices. MSDS forms are available fromyour welding distributor or from the manufacturer.

5.e. Also see item 1.b. Mar 95

SAFETYiii iii

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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 manufacturersrecommendations.

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

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 contact cancause 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 circuits.This can create fire hazards or overheat lifting chains orcables until they fail.

6.h. Also see item 1.c.

SAFETYiv iv

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Pour votre propre protection lire et observer toutes les instructionset les prcautions de sret specifiques qui parraissent dans cemanuel aussi bien que les prcautions de sret gnrales suiv-antes:

Sret Pour Soudage A LArc1. Protegez-vous contre la secousse lectrique:

a. Les circuits llectrode et la pice sont sous tensionquand la machine souder est en marche. Eviter toujourstout contact entre les parties sous tension et la peau nueou les vtements mouills. Porter des gants secs et sanstrous pour isoler les mains.

b. Faire trs attention de bien sisoler de la masse quand onsoude dans des endroits humides, ou sur un plancher met-allique ou des grilles metalliques, principalement dans les positions assis ou couch pour lesquelles une grandepartie du corps peut tre en contact avec la masse.

c. Maintenir le porte-lectrode, la pince de masse, le cble desoudage et la machine souder en bon et sr tat defonc-tionnement.

d.Ne jamais plonger le porte-lectrode dans leau pour lerefroidir.

e. Ne jamais toucher simultanment les parties sous tensiondes porte-lectrodes connects deux machines souderparce que la tension entre les deux pinces peut tre le totalde la tension vide des deux machines.

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

2. Dans le cas de travail au dessus du niveau du sol, se protgercontre les chutes dans le cas ou on recoit un choc. Ne jamaisenrouler le cble-lectrode autour de nimporte quelle partie ducorps.

3. Un coup darc peut tre plus svre quun coup de soliel, donc:

a. Utiliser un bon masque avec un verre filtrant appropri ainsiquun verre blanc afin de se protger les yeux du rayon-nement de larc et des projections quand on soude ouquand on regarde larc.

b. Porter des vtements convenables afin de protger la peaude soudeur et des aides contre le rayonnement de larc.

c. Protger lautre personnel travaillant proximit ausoudage laide dcrans appropris et non-inflammables.

4. Des gouttes de laitier en fusion sont mises de larc desoudage. Se protger avec des vtements de protection libresde lhuile, tels que les gants en cuir, chemise paisse, pan-talons sans revers, et chaussures montantes.

5. Toujours porter des lunettes de scurit dans la zone desoudage. Utiliser des lunettes avec crans lateraux dans leszones o lon pique le laitier.

6. Eloigner les matriaux inflammables ou les recouvrir afin deprvenir tout risque dincendie d aux tincelles.

7. Quand on ne soude pas, poser la pince une endroit isol dela masse. Un court-circuit accidental peut provoquer unchauffement et un risque dincendie.

8. Sassurer que la masse est connecte le plus prs possible dela zone de travail quil est pratique de le faire. Si on place lamasse sur la charpente de la construction ou dautres endroitsloigns de la zone de travail, on augmente le risque de voirpasser le courant de soudage par les chaines de levage,cbles de grue, ou autres circuits. Cela peut provoquer desrisques dincendie ou dechauffement des chaines et descbles jusqu ce quils se rompent.

9. Assurer une ventilation suffisante dans la zone de soudage.Ceci est particulirement important pour le soudage de tlesgalvanises plombes, ou cadmies ou tout autre mtal quiproduit des fumes toxiques.

10. Ne pas souder en prsence de vapeurs de chlore provenantdoprations de dgraissage, nettoyage ou pistolage. Lachaleur ou les rayons de larc peuvent ragir avec les vapeursdu solvant pour produire du phosgne (gas fortement toxique)ou autres produits irritants.

11. Pour obtenir de plus amples renseignements sur la sret, voirle code Code for safety in welding and cutting CSA StandardW 117.2-1974.

PRCAUTIONS DE SRET POURLES MACHINES SOUDER TRANSFORMATEUR ET REDRESSEUR

1. Relier la terre le chassis du poste conformement au code dellectricit et aux recommendations du fabricant. Le dispositifde montage ou la piece souder doit tre branch unebonne mise la terre.

2. Autant que possible, Iinstallation et lentretien du poste seronteffectus par un lectricien qualifi.

3. Avant de faires des travaux linterieur de poste, la debranch-er linterrupteur la boite de fusibles.

4. Garder tous les couvercles et dispositifs de sret leur place.

Mar. 93

MASTER TABLE OF CONTENTS FOR ALL SECTIONSv v

V350-PRO

Page

Safety.................................................................................................................................................i-iv

Installation .............................................................................................................................Section A

Operation...............................................................................................................................Section B

Accessories...........................................................................................................................Section C

Maintenance .........................................................................................................................Section D

Theory of Operation .............................................................................................................Section E

Troubleshooting and Repair.................................................................................................Section F

How to Use Troubleshooting Guide............................................................................................F-2

Troubleshooting Guide ................................................................................................................F-4

Test Procedures ........................................................................................................................F-15

Replacement Procedures .........................................................................................................F-51

Electrical Diagrams ..............................................................................................................Section G

Parts Manual ....................................................................................................................P-401 Series

RETURN TO MAIN INDEX

SectionA-1 Section A-1

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TABLE OF CONTENTS- INSTALLATION SECTION -

Installation

Technical Specifications .............................................................................................................A-2

Safety Precautions......................................................................................................................A-3

Stacking......................................................................................................................................A-3

Tilting ..........................................................................................................................................A-3

Input Grounding Connections ....................................................................................................A-3

Power Cord Connection .............................................................................................................A-3

Connection of Wire Feeders................................................................................................A-3/A-4

Cobramatic Connection Instructions..........................................................................................A-4

Parallel Operation .......................................................................................................................A-5

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A-2INSTALLATION A-2

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

Product Ordering Input AC Rated DC Output Output Weight Dimensions Open Name Information Voltage Amps/Volt Range with Cord HxWxD Circuit

/Duty Cycle (continuous) Voltage

K1728-5 ConstructionConstruction (81.0 lbs.)

200 350A / 34V / 60% (36.7 kg.) 14.8 x 13.3 xInvertec K1728-6 208-230/ 27.8* V350- Factory 380-400/ AMPS Factory (373 x 338 xPRO 415-460/ 5-425 (81.0 lbs.) 706*)mm

60/50 Hz K1728-7 575 300A / 32V /100% (36.7 kg.) 80 VDCAdvanced 1& 3 Phase Process 60/50 Hz Advanced Process

(81.5 lbs.) (37.0 kg.)

* Overall Length Including Handle, 27.8 (706mm)

Voltage

200

208230380

400

415460575

200208230380400415460575

Phases

1

111

1

111

33333333

300Amps @32Volts(100%)

NotRecommended

7669Not

RecommendedNot

Recommended413631

4139362322221916

350Amps @34Volts(60%)

NotRecommended

9485Not

RecommendedNot

Recommended644237

5050422827262318

Line CordAWG

24

---

688

86888888

Fuse size

---

125A125A

---

---

80A70A50A

80A80A70A50A50A50A50A35A

V350-PRO INPUT CURRENT

OUTPUT CABLES, CONNECTIONS AND LIMITATIONS

Recommemded Fuse Sizes Base On The U.S. National Electrical Code And Maximum Machine Outputs

Input 50/60 Hz Output Recommended

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.

Select The output cable size based upon the following chart.Cable sizes for Combined Length of Electrode and Work Cable (Copper) 75C rated:

DUTY CYCLE100%60%

CURRENT300350

LENGTH UP TO 200FT.(61m)1/01/0

200-250 FT. (61-76m)1/02/0

Notes

Note 1

Note 2Note 2Note 1

Note 1

Note 2

Note 2Note 2

A-3 A-3

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INSTALLATION

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 Electrical Code.

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

WARNING

SAFETY PRECAUTIONS

SELECT SUITABLE LOCATION

The Invertec V350-PRO will operate in harsh environ-ments. Even so, it is important that simple preventativemeasures are followed in order to assure long life andreliable 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 than 5.90(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, multiple volt-age machines are internally connected for 460VAC.If 460VAC is the desired input, then the machine maybe connected to the power system without any setuprequired inside the machine.

CAUTION

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 & Advanced Process versionscan be connected.-Not recommended for PulseWelding with the Advanced Process Model). Turn the Invertec power switch "off". Connect the electrode cable to the output terminal of polar-

ity required by electrode. Connect the work lead to theother terminal.

LN-25 with Remote Control options can be used with theFactory Advanced Process version 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 V350s 14-pin MS-style connectorusing Remote Control Cable assembly K627- [ ]. LN-25swith a K431-1 remote kit can be connected to the V350s14-pin MS-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 to theV350s 14-pin MS-style 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 OR BROWN

CAUTION

INSTALLATIONA-4 A-4

V350-PRORet

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An LN-7 can only be used with the Factory &Advanced Process versions of the 350-Pro. Turn the Invertec power switch "off". Connect the K480 control cable from the LN-7 to the

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

polarity required by electrode. Connect the work lead tothe 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 to the14-pin MS-style connector. (See connection diagramS19901)

LN-10 Connection InstructionsAn LN-10 can only be used with the Factory &Advanced Process versions of the 350-Pro. 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 the work leadto 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 &Advanced 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

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 with theLN-742, 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-742 and the remote tothe 14-pin MS-style connector.

Cobramatic Connection InstructionsA Cobramatic can only be used with the Factory &Advanced Process versions of the 350-Pro. 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 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 14-pin MS-style connector.

TIG Module K930-2The TIG Module connects to the Factory and AdvancedProcess V350-Pro versions with a K936-1 (9-14 pin)control cable. Connect the K936-1 to the MS-styleconnector.

The TIG Module can also be used with the V350-ProConstruction version. A K936-4 control cable isrequired to supply 115VAC to the TIG Module from anexternal 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 universal adapterplug is required. See connection diagram S24985 onpage 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

4/01

N NOT PROTRUDE MORE THAN 0.5 INCHES INSIDE THE MACHINE.

11.84

3.50

INSTALLATIONA-5 A-5

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The V350-Pro can be paralleled in CC mode. For bestresults, the currents of each machine should be rea-sonably 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 amps fromthe other. This will minimize nuisance shutdown con-ditions. In general, more than two machines in paral-lel will not be effective due to the voltage requirementsof 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 current. The arc control pots shouldbe kept identical on the two machines.

NOTESA-6 A-6

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Section B-1 Section B-1

V350-PRO

TABLE OF CONTENTS- OPERATION SECTION -

Operation...............................................................................................................................Section B

Safety Precautions......................................................................................................................B-2

General Description..............................................................................................................B-2

Duty Cycle ............................................................................................................................B-2

Operational Features and Controls ............................................................................................B-2

Weld Mode Select.......................................................................................................................B-3

CC-Stick Soft..................................................................................................................B-3

CC-Stick Crisp................................................................................................................B-3

TIG GTAW .......................................................................................................................B-4

CV-Wire...........................................................................................................................B-4

CV-Innersheild.................................................................................................................B-4

Advanced Process Panel............................................................................................................B-5

Controls ......................................................................................................................................B-6

Electrode Material.......................................................................................................................B-6

Hot Start & Arc Control...............................................................................................................B-6

Weld Mode Details......................................................................................................................B-7

Pulse Programs ..........................................................................................................................B-8

Lower Case Front .......................................................................................................................B-9

CV Modes.............................................................................................................................B-9

TIG Mode .............................................................................................................................B-9

CC-Stick Modes...................................................................................................................B-9

Types of Remote Output Control................................................................................................B-9

Types of Remote Weld Terminal Control ....................................................................................B-9

Auxiliary Power .........................................................................................................................B-10

Limitations.................................................................................................................................B-10

Recommended Processes........................................................................................................B-10

Descriptions of Special Welding Processes Available on this Machine...................................B-11

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B-2 B-2

V350-PRO

OPERATION

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 dangerous. 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 operators manual.

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

WARNING

SAFETY PRECAUTIONS

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 either aConstruction version (no wire feeder connection andauxiliary power) and a Factory & Advanced Processversions (includes wire feeder connection and relatedpower). The factory model is the construction model with

the addition 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.

DUTY CYCLE

The V350-Pro is rated at 350 amps, 60% duty cycle(based on a 10 minute cycle). It is also rated at 300amps, 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 (+/- 2 amps or+/- 3%, whichever is greater).

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 or fourdashes 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" pushbutton.

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.

OPERATIONB-3 B-3

V350-PRO

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OC The unit will power up in "pre-determined preferred"

trigger modes.

STICK = ON CV = REMOTETIG = REMOTE if remote output controls are attachedto the machine.TIG = 0N if remote output controls are not attached tothe machine.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 terminals were"ON", the "ON" light will blink indicating that the output willbe turned back on once the unit cools down to an accept-able temperature level. If the unit was operating in the"REMOTE" mode, the trigger will need to be openedbefore or after the thermal has cleared and closed after themachine has cooled down to an acceptable temperature toestablish 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. When changed,the unit will power up in the configuration it was in when itwas last powered down.

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

The Mode Control button selects from the followingwelding modes.

CC-STICK SOFT: The Stick Soft process features con-tinuous control ranging from 5 to 425 amps. This modewas intended for most SMAW applications, and ArcGouging.

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 features con-tinuous control from 5 to 425 amps. This mode wasintended primarily for pipe welding applications.

The Hot Start control regulates the starting current atarc initiation. Hot Start can adjust starting current upor down by 25% of the preset value. The recom-mended setting for Hot Start is 5 where the initial cur-rent is equal to the preset current.

REMOREMOTETEONON

REMOREMOTETELOCALLOCAL

WELD TERMINALS

OUTPUT

CONTROL

SELECT SELECT

MPSA OLTSV

SELECTSELECT

CC-STICK SOFT 7018CC-STICK SOFT 7018

CC-STICK CRISP 6010CC-STICK CRISP 6010

TIG GTTIG GTAW

CVCV-WIRE-WIRE

CVCV-FLUX CORED-FLUX CORED

HOHOT STT STARART ARC CONTRARC CONTROLOL

-4 +4

+2-20

-6 +6

-10SOFT CRISP

+10

-8 +8

54

3

2

1

0

6

10

9

8

7

1

6

5

2

3

4

8

7

11

1012

9

FIGURE B.1.

Hidden Middle Control Panel Mode Panel

OPERATIONB-4 B-4

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OC The Arc Control regulates the Arc Force to adjust the

short circuit current. The minimum setting (-10) willproduce a "soft" arc and will produce minimal spat-ter. The maximum setting (+10) will produce a "crisp"arc and will minimize electrode sticking.

TIG GTAW: The TIG mode features continuous controlfrom 5 to 425 amps. The TIG mode can be run in eitherthe TIG touch start or high frequency (optional equip-ment required) assisted start 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 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 positive arcinitiation. 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,the OCV of the machine is controlled between 50and 70 volts. If using the Lincoln K930-1 TIGModule, set the 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 the 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 touched to thework. The electrode needs to remain in contact withthe work 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 40 volts. The mode was intended formost 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-INNERSHEILD: The CV-INNERSHEILD 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 active 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.

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OPERATIONB-5 B-5

V350-PRO

7A. ADVANCED PROCESS PANEL(See Figure B.2)

To program Welding modes. SELECT knob is used toScroll through all Welding modes. The MEMORY but-ton is used to store and access Welding modes intolocations M1 thru M8.

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

Power ModeIn the Power Mode;The work point will be in the Volts window. The Ampwindow will have CP displayed indicating ConstantPower. Once current starts flowing and during the 5second Hold feature the displays will show Voltsand Amps respectively. Refer to the detailed expla-nation at the end of this section.

GougeAir Carbon Arc Cutting (CAC-A) is a physical meansof removing base metal or weld metal by using a car-bon electrode, an electric arc and compressed air.

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 while select-ing 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

Refer to the detailed explanation at the end of thissection.

MEMORY

MEMORMEMORY BUTTON (M1 (M1 THRU M8)

OUTPUT KNOB

SELECT BUTTONON(HOT START OR ARC CONTROL)

ADJUST KNOBADJUST KNOB(0 THRU 10-HOT START)(-10 THRU 0 AND 0 THRU +10-ARC CONTROL) SELECT KNOB(SCOLLS WELDING PRWELDING PROCESSES)

SELECT ADJUST SELECT

7AREMOREMOTETE

ONONREMOREMOTETELOCALLOCAL

WELD TERMINALS

OUTPUT

CONTROL

SELECT SELECT

MPSA OLTSV

FIGURE B.2

ADVANCED PROCESS PANEL VERSION

OPERATIONB-6 B-6

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The MEMORY button and SELECT knob are usedtogether to select a welding process and store it inmemory (M1 thru M8). The SELECT knob scrollsthrough the, welding process modes and memory M1thru M8. The MEMORY button stores the weldingprocess in memory. SELECT button" (The right button) selects between

the "Hot Start" or "Arc Control". The < will indicate theactive feature shown below.

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

700mA

200mA

0mA- - - - +

Or, the signal can be verified by measuring 12.3 VDC+/- .5V from lead 553A to 554A (Lead 553A should bepositive)

Press the local/remote pushbutton again to turn the gassolenoid off.

+------------------------+

+-----....------+

+-------------

After completing all of the above tests, the following will appear on the display.

PASSDIAgVerify this message appears for approximately 3 sec-onds

G-1ELECTRICAL DIAGRAMSG-1

TABLE OF CONTENTS -ELECTRICAL DIAGRAMS SECTION-

ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION GWIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-2MACHINE SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-3CONTROL PC BOARD SCHEMATIC #1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-4CONTROL PC BOARD SCHEMATIC #2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-5CONTROL PC BOARD SCHEMATIC #3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-6CONTROL PC BOARD SCHEMATIC #4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-7CONTROL PC BOARD ASSEMBLY (L11088-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *POWER SUPPLY PC BOARD SCHEMATIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-8POWER SUPPLY PC BOARD ASSEMBLY (G3632-2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *SWITCH PC BOARD SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-9SWITCH PC BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-10DISPLAY PC BOARD SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-11DISPLAY PC BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-12LED SELECT PC BOARD SCHEMATIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-13LED SELECT PC BOARD ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-14LED POTENTIOMETER PC BOARD SCHEMATIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-15LED POTENTIOMETER PC BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-16SPI REMOTE PC BOARD SCHEMATIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-17SPI REMOTE PC BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-18SNUBBER PC BOARD SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-19SNUBBER PC BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-20

* NOTE: Many PC Board Assemblies are now totally encapsulated and are therefore considered to be unservice-able. The Assembly numbers are provided on this page but the actual drawings are no longer included.

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V350-PRO

ELECTRICAL DIAGRAMS G-2

V350-PRO

WIRING DIAGRAM - INVERTEC V350-PRO

NOTES:

N.A. 1. FOR MACHINES WITH RED, BLACK AND WHITE POWER CORDS FOR SINGLE PHASE INPUT: CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRICAL CODE. CONNECT BLACK AND WHITE LEADS TO SUPPLY CIRCUIT. WRAP RED LEAD WITH TAPE TO PROVIDE 600V. INSULATION. FOR THREE PHASE INPUT: CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRIC CODE. CONNECT BLACK, RED & WHITE LEADS TO SUPPLY CIRCUIT.

N.C. PLACE "A" LEAD ON APPROPRIATE CONNECTION FOR INPUT VOLTAGE. CONNECTION SHOWN IS FOR 550-575V OPERATION. (CE MODELS ONLY GO TO 440VAC.)

LEFT SIDE OF MACHINE

G4082

WIRING DIAGRAM INVERTEC V350

1-25-2002

N.B. SINCE COMPONENTS OR CIRCUITRY OF A PRINTED CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY HAVING A COMMON CODE NUMBER.

ELECTRICAL SYMBOLS PER E1537

2

16

12

CONNECTOR CAVITY NUMBERING SEQUENCE(VIEWED FROM COMPONENT SIDE OF BOARD)

J4J43, J331

1

7

J8,J20,J21

4

8

1

5

J9, J42, P533

6

1

4

J2,J5,J11,J22, J41,J311, P55

21

43

J31,J33,J34,J37

6

5

10

1

J1,J6,J7, P52, J332, J333

8

16

1

9BASECASE FRONT

PROTECTIVE BONDING CIRCUIT

J10A,J10B

ON "CE" MODELS.

N.D. INPUT POWER LINE FILTER IS PRESENT ONLY

N.E. ON "CE" MODELS, MOV's ARE IN THE INPUT POWER

LINE FILTER.

LEGEND ALL MACHINES OPTION COMPONENT OUTLINE

2. FOR MACHINES WITH BROWN, BLACK AND BLUE POWER CORDS FOR SINGLE PHASE INPUT: CONNECT GREEN/YELLOW LEAD TO GROUND PER NATIONAL ELECTRICAL CODE. CONNECT BLUE AND BROWN LEADS TO SUPPLY CIRCUIT. WRAP BLACK LEAD WITH TAPE TO PROVIDE 600V. INSULATION. FOR THREE PHASE INPUT: CONNECT GREEN/YELLOW GROUND PER NATIONAL ELECTRIC CODE. CONNECT BLUE, BLACK & BROWN LEADS TO SUPPLY CIRCUIT.

FAN

FRONT VIEW OF MACHINE

MAINTRANSFORMER

205

201

H3

H2

RECONNECT

H5

H4

FAN

10

X3

20

X2

3

2

6

A

204

AA

208

B

RE

AR

OF

MA

CH

INE

30

40X4

X1

SEC

BOOS

T

RIGHT SIDE OF MACHINE

7

206

( 380-575VAC POSITION )

207A

276

WELDTERMINALS R5

10K/2W OUTPUTCONTROL

277 275

1

DISPLAY

510

16

49 8

3 27

CONTROL

R(B)

B A

G(G/Y)

W

W(N)

V

C

B(U)

U

2

3

4

1

1

5

403

402

401

4084

05

410

4 11

412

407

7

23

89

46 1

10

5

1112

2

3

4

1

502503

10201002

H1

B

TP1TP3

A

A

TP2

C

205

206 203

208

+

201204

202 2073200/300

C2,C4

xxxxxxx

209

SWITCH

207

209

207A

203

202

H6575V550-

460V440-

230V220-

380-415V 208V

200-

H5

H6

H2

H3

H4

AUXILIARYTRANSFORMER

H1

7

2

3

8

9

4

6

1

5

10

11

12

13

14

15

16

609

602611

607

901

903

804

903

234 15

78910

2

3

1

6

5

4

7

8

802806801

BRIDGEINPUT

3.5A

_+

A

BE

F C

D

_

901

PRIMARY

PRI-I

N

PRI-O

UT

PRI-O

UT

PRI-I

N

SEC

BOOS

T

OUTPUTRECTIFIER

CURRENTTRANSDUCER

502

505

L2REACTOR

CHOKE

REACTORL1

INPUTPERN.A.

}

406

612

608

J37

E

F

A B

C

D

4321

REMOTE

5

10

1

6

4

9

8

3

2

7

7

42V

541

2424

V

16

42

CO

M1

115V

J52All

OtherModels

5

4

76

21

554553

+405

66 65406 401

402403408

410412 411

J43J41J42 POWER

GASSOLENOID

16

15715

716

615

616

615607

611612

3200/300

C1,C3

+

CONTROL RECTIFIER

54

65

+

41Aor

541A(construction)

~

~

66

-

+

6 PINREMOTE(REAR VIEW )

610605

SPI FLEX CIRCUIT

SPI FLEX CIRCUIT

1

31532

11

J213

1

J201

2

3

6

5

4

2608605

616

610

10

30

65B

66B

J90

CB3

SNUBBER

10

X2X4

2040

SNB

28V

77A

2A

75A

1

2 2

10101001

6

715716

7

8

6

5

10201010

10011002

FA

N

4

1 2

3

FAN

J22

31B

32A

FA

N

CO

M2

6

7

8 4609602

503

xxxxxxx

506

COM2A

N.D.

802

804

801

806

505

1

7

4

10

9

3

2

8

2776

12

11

5

723

894

61

105

J61

2

3

4

5

J60A J60B

1

2

3

4

5

3313331633143305

33043312

33153303

13

14

15

16275

276

3313

3316

3315

3305

3304

3314

33123303

3301

1 2 3 4 5 6 7 8 9 151413121110

1

7

4

10

9

3

2

8

6

12

11

5 13

14

15

16

3211

3205

3206

3203

3204

3215

3216

3213

3212

3207

3202

3201

4

3202

3207

3212

3213

3216

3215

3204

3203

3206

3205

13 25

141

251OR

65

1211

432

10987

111 22

3

3

44 5 6

407

J61J10BJ10A

J8

J9

J7

J6

J1 J331

J5

J4 J3

J332

J333

54

14

MODEADVANCEDPROCESS

J34

_ +

903A

TP4TP5

903B

R1

S1901A

901B

GND

CB2

532

32

75A77A

2A

4A

76A

A

B

C

J

K

L

D

E

M

I

H

GF

N

41

24

CB1

541

41B41B

WIRE FEEDER REMOTE(REAR VIEW)

10A 3.5A

32

31A

('CE' Model will not contain leads 31A or 32)

5 10

1 6

4 9

83

2 7

J33

31A

31

41A 32A

J52(Construction)

OR53

2A

31C

54 541

A

SPI FLEX CIRCUIT

11

124A

275

7776

76A554553

3201

4

3 1

2

251254

253

J2

21

31B

GND

NOTE:IF ADVANCED PROCESS PANEL IS NOT INSTALLEDSPI FLEX CIRCUIT IS PLUGGED INTO J33.

253254554

553

2

7577

42

N.C.

IN PARENTHESISCOLORS FOR"CE" MACHINES

Y = YELLOW

W = WHITE

N = BROWNU = BLUE

R = REDG = GREENB = BLACK

COLOR CODE:

1 15

J61

1 5

J60

Pin 3 lead 31B or 31CPin 2 lead 32A or 532A

N.E.

TOP CENTERPANEL

FAN SHROUD

G-2

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.Ret

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ELECTRICAL DIAGRAMS G-3

V350-PRO

SCHEMATIC - COMPLETE MACHINE

G4093B

SPIPOWERSUPPLY

GREENL3

G

GND

POWERBOARD

(+)15 VOLT SPI

GROUND SPI

MOSI

SCK

(+)5 VOLT SPI

MISO

CS3CS2

CS1

/SS

FAN

FAN

32A

31B

A

H1C

B

ABLACK

RED

WHITE

SNB

B1

X10

X40

X30

X20

66

65

66B

65B

41A

54

406

405

403

402

401

PULSE TRANSFORMER GATE DRIVE

PRIMARY CURRENT SENSE #2 (+)

VOLTAGE / FREQUENCY CONVERTER #2 (-)VOLTAGE / FREQUENCY CONVERTER #2 (+)

PRIMARY CURRENT SENSE #2 (-)

J6-15

801802804806

PRIMARY CURRENT SENSE #1 (+)

VOLTAGE / FREQUENCY CONVERTER #1 (-)VOLTAGE / FREQUENCY CONVERTER #1 (+)

609

602

616

608

1001

1002

505

502

505

506

503506

xxxxxxx

POWER DOWN SIGNAL J42-4

J4-1

J4-2

J4-3

GND SPI (b)

+15V SPI (b)

+5V SPI (b)

J10A-2J10A-1J6-8J6-16J6-2

60960261660810011002

PRIMARY CURRENT SENSE #1 (-)

+15VMAIN RELAY CONTROL

J6-9

I OUT

-15VGND

+15V

J90-4

J90-3

J90-2J90-1

MA

IN T

RA

NS

FO

RM

ER

J21-2

SOFTSTART

J20-

3

J20-

7

(+)(-) PU

LSE

TR

AN

SF

OR

ME

RJ2

0-5

J20-

1FA

N P

OW

ER

FA

N C

ON

TR

OL

J20-

6

J20-

2

CR1

J20-8

J20-4

J21-3

J21-7

J21-6

FAN

J22-

3

J22-

2

J22-

1

J22-

4

J43-9

J43-4

J43-12

J43-6

GND (d)

+20 (d)

+

GAS SOLENOID

553

554

SUPPLYPOWER

CHOPPER GND (c)

+20 (c)

J43-1

J43-7

J43-2

J43-8

S1

R1

903B

901B901A

903A

21

3.5A 6ACB1

RS232SUPPLY

+5 RS232 (e)

GND (e)

+5 SPI (b)

+15 SPI (b)

SPI GND (b)

SUPPLYPOWER

CONTROL

MACHINE

J43-3

GND (a)

-15 (a)

+5 (a)

+15 (a)

J42-2

J42-5

J42-3

J42-1

J41-1

J41-2

REMOTE BOARD

SNUBBERBOARD

REACTOR

REACTOR

INPUTLINES

DISPLAY PANEL

J7-15 + 15 (a)

S

X3

X2X1

X4

S

BK

-IN

FR

-IN

S

2

3S

B-I

N

S

A-O

UT

67

SA

-IN

SB

-OU

T

INPUT SWITCH

TP3

TP1

AC3

AC1L3

V

WL1

L2 AC2

POS

NEGU

J21-1

J21-5

J21-8

J21-4

Shown connected for200 - 240 Volt Input Voltage

RECONNECT SWITCH

CR1MAININPUTRELAY

V/F CONVERTER # 1

V/F CONVERTER # 2

SWITCH BOARD

+

-

202

208

+

-

+

J4-5

J4-6

J4-11

J4-10

J4-8

J4-12

J5-2

J5-3

J4-7

J7-16

J6-5

J6-11

J6-7

J6-12

J10B-2J10B-1J6-10

J3-10

J3-9

J3-8

J3-7

J3-6

J3-5

J3-4

J3-3

J3-2J3-1

J9-3J9-1

J8-6J8-4J8-2

-

203

207

201

204

xxxxxxx

206

209

205

MAIN CHOKE

THERMOSTAT

VOLTS

TH

ER

MA

L

POWERDOWN SIGNAL (HIGH=RUN)

801802804806

901903

6101010

503

502

GND (a)

GND (e)

TRANSDUCERCURRENT

FAN CONTROL

GND (a)

PULSE TRANSFORMER GATE DRIVESOFT START CONTROL

CONTROL BOARD COMMON

THERMOSTAT

THERMOSTAT

407412

716

605

715

611

607615612

1020

(+) STUD VOLTAGE SENSE(-) STUD VOLTAGE SENSE

+5V RS232 (e)

+5V (a)

411

410

408

ON "CE" MODELS.

N.A. PC BOARD COMPONENTS SHOWN FOR REFERENCE

NOTES :

-15V+15VCURRENT FEEDBACK ( 4V=500A )

TP3

C2/TP2

C1/TP1

J8-1

160J320V

600V.05uF

80J150V

160J320V

600V.05uF

CONTROL BOARD

+15V (a)

-15V (a)

POSITIVE

-NEGATIVE

+

CO

M2

J52-

542

J52-

14J5

2-7

2431

CO

M1

J52-

1654

1

J52-

11

115V

J52-

153

2

(440

-460

)H

5

(550

-575

)H

6

24V

28V

42V

(380

-415

)

(220

-230

)

(200

-208

)

H4

H3

H2

H1

3.5A

AUXILIARYTRANSFORMER

AMPHENOLS ARE VIEWED FROM FRONT OF MACHINE

AMPS

4200 uF

4200 uF

+40 VDC

250

Ohm

s

115 VAC

SPI CIRCUIT

406

405

403

402

401

407412

411

410

408

J331

-11

J331

-10

J331

-9J3

31-8

J331

-2

J331

-6J3

31-5

J331

-4J3

31-3

graphical representation

SO

LEN

OID

CO

IL (

+)

6 P

IN'S

"4"

LE

AD

"77"

LE

AD

14 P

IN'S

"76

" LE

AD

"2"

LEA

D

14 P

IN'S

"4"

LE

AD

SO

LEN

OID

CO

IL (

-)

"75"

LE

AD

6 P

IN'S

"76

" LE

AD

+10 Volts

of potentiometer connection

610

1010

716

605

715

611607 615

612

1020

OUTPUTDIODES

+

-4200 uF

4200 uF

54

N.B. INPUT POWER LINE FILTER IS PRESENT ONLY

N.C. ON "CE" MODELS, MOV's ARE IN THE INPUT POWER

LINE FILTER.

ONLY. ALL COMPONENTS ARE NOT SHOWN.

TP2(BROWN)

(BLACK)

(BLUE)

(GREEN/YELLOW)

6 PIN REMOTE

C

D

E

B

F

A

WIRE FEEDER REMOTE

C

D

E

B

L

M

F

K

N

G

J

I

H

A

276

R510K/2W

OUTPUT CONTROL277 275

1325

14

1

OR

ADVANCED PROCESS PANEL

2175A

75A

75

77

76 4

2

ELECTRICAL SYMBOLS PER E1537

6

12

CONNECTOR CAVITY NUMBERING SEQUENCE(VIEWED FROM COMPONENT SIDE OF BOARD)

J4, J43, J331

1

7

J8,J20, J21

Documents

Invertec v350 Pro