Lincoln Electric IM708 User Manual [en, fr]

INVERTEC V350-PRO (CE)

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RETURN TO MAIN MENU

Safety Depends on You

Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought­ful operation on your part. DO

NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most

importantly, think before you act
and be careful.

™

For use with machines Code; 10670

A

AMPS

V

VOLTS

A

W

ARNING

OUTPUT

INVERTEC V350-PRO

REMOTE

ON

OF

F

WELD TERMINALS

SELECT

POWE

R

LINCOLN

ELECTRIC

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IM708

January, 2001

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

ISO 9001

Designed and Manufactured Under a

Quality Program Certified by
ABS Quality Evaluations, Inc.

to ISO 9001 Requirements.

CERTIFICATE NUMBER: 30273

Cleveland, Ohio 44117-1199 U.S.A. TEL: [phone] FAX: [phone] WEB SITE: www.lincolnelectric.com

ANSI RAB

QMS

IEC 974-1
IP21S

OPERATOR’S MANUAL

Copyright © 2001 Lincoln Global Inc.

• World's Leader in Welding and Cutting Products •

• Sales and Service through Subsidiaries and Distributors Worldwide •

i

SAFETY

i

WARNING

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituents
are known to the State of California to cause can­cer, birth defects, and other reproductive harm.

The Above For Diesel Engines

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 you
purchase 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 the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.

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

The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.

The Above For Gasoline Engines

FOR ENGINE
powered equipment.

1.a. Turn the engine off before troubleshooting and maintenance
work 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 before
refueling to prevent spilled fuel from vaporiz­ing on contact with hot engine parts and
igniting. Do not spill fuel when filling tank. If
fuel is spilled, wipe it up and do not start
engine 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 and
tools away from V-belts, gears, fans and all other moving
parts when starting, operating or repairing equipment.

____________________________________________________

1.e. In some cases it may be necessary to remove safety

guards to perform required maintenance. Remove
guards only when necessary and replace them when the
maintenance requiring their removal is complete.
Always use the greatest care when working near moving
parts.

___________________________________________________

1.f. Do not put your hands near the engine fan.
Do not attempt to override the governor or
idler by pushing on the throttle control rods
while the engine is running.

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

ELECTRIC AND
MAGNETIC FIELDS
may 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, and
welders having a pacemaker should consult their physician
before welding.

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

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

2.d.1.

Route the electrode and work cables together - Secure
them with tape when possible.

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

2.d.3. Do not place your body between the electrode and

work cables. If the electrode cable is on your right
side, the work cable should also be on your right side.

___________________________________________________

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

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

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

Mar ‘95

ii

SAFETY

ii

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 bare
skin 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 full
area of physical contact with work and ground.

In addition to the normal safety precautions, if welding
must be performed under electrically hazardous
conditions (in damp locations or while wearing wet
clothing; on metal structures such as floors, gratings or
scaffolds; when in cramped positions such as sitting,
kneeling or lying, if there is a high risk of unavoidable or
accidental contact with the workpiece or ground) use
the 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 semiautomatic
welding gun are also electrically “hot”.

3.d. Always be sure the work cable makes a good electrical
connection with the metal being welded. The connection
should 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.

ARC RAYS can burn.

4.a. Use a shield with the proper filter and cover
plates to protect your eyes from sparks and
the rays of the arc when welding or observing
open arc welding. Headshield and filter lens
should conform to ANSI Z87. I standards.

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

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

FUMES AND GASES
can be dangerous.

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

fumes and gases away from the breathing zone. When

welding with electrodes which require special
ventilation such as stainless or hard facing (see
instructions on container or MSDS) or on lead or
cadmium plated steel and other metals or coatings
which produce highly toxic fumes, keep exposure as
low as possible and below Threshold Limit Values (TLV)
using local exhaust or mechanical ventilation. In
confined spaces or in some circumstances, outdoors, a
respirator may be required. Additional precautions are
also required when welding on galvanized steel.

3.f.

Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace
damaged insulation.

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

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

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

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

5.b.

Do not weld in locations near chlorinated hydrocarbon
coming from degreasing, cleaning or spraying operations.
The heat and rays of the arc can react with solvent vapors
form phosgene, a highly toxic gas, and other irritating prod­ucts.

5.c. Shielding gases used for arc welding can displace air and
cause 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 this

equipment and the consumables to be used, including the
material safety data sheet (MSDS) and follow your
employer’s safety practices. MSDS forms are available from
your welding distributor or from the manufacturer.

5.e. Also see item 1.b.

vapors

Mar ‘95

to

iii

SAFETY

iii

WELDING SPARKS can
cause fire or explosion.

6.a.

Remove fire hazards from the welding area.

If this is not possible, cover them to prevent

the welding sparks from starting a fire.

materials from welding can easily go through small cracks
and openings to adjacent areas. Avoid welding near
hydraulic 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 hazardous
situations. Refer to “Safety in Welding and Cutting” (ANSI
Standard Z49.1) and the operating information for the
equipment being used.

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

6.d. Do not heat, cut or weld tanks, drums or containers until the
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances
inside. They can cause an explosion even
been “cleaned”. For information, purchase “Recommended
Safe Practices for the
Containers and Piping That Have Held Hazardous
Substances”, AWS F4.1 from the American Welding Society

(see address above).

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

Sparks and spatter are thrown from the welding arc. Wear oil

6.f.
free protective garments such as leather gloves, heavy shirt,
cuffless trousers, high shoes and a cap over your hair. Wear
ear plugs when welding out of position or in confined places.
Always wear safety glasses with side shields when in a
welding area.

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

6.h. Also see item 1.c.

Remember that welding sparks and hot

though

they have

Preparation

for Welding and Cutting of

CYLINDER may explode
if damaged.

7.a. Use only compressed gas cylinders
containing the correct shielding gas for the
process used and properly operating
regulators designed for the gas and

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

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

7.c. Cylinders should be located:

• Away from areas where they may be struck or subjected to

physical damage.

• A safe distance from arc welding or cutting operations and

any other source of heat, sparks, or flame.

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

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

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

7.g. Read and follow the instructions on compressed gas
cylinders, associated equipment, and CGA publication P-l,
“Precautions for Safe Handling of Compressed Gases in
Cylinders,” available from the Compressed Gas Association
1235 Jefferson Davis Highway, Arlington, VA 22202.

FOR ELECTRICALLY
powered equipment.

8.a. Turn off input power using the disconnect
switch at the fuse box before working on
the equipment.

8.b. Install equipment in accordance with the U.S. National
Electrical Code, all local codes and the manufacturer’s
recommendations.

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

Mar ‘95

iv

SAFETY

iv

PRÉCAUTIONS DE SÛRETÉ

Pour votre propre protection lire et observer toutes les instructions
et les précautions de sûreté specifiques qui parraissent dans ce
manuel aussi bien que les précautions de sûreté générales suiv-
antes:

Sûreté Pour Soudage A L’Arc

1. Protegez-vous contre la secousse électrique:

a. Les circuits à l’électrode et à la piéce sont sous tension

quand la machine à souder est en marche. Eviter toujours
tout contact entre les parties sous tension et la peau nue
ou les vétements mouillés. Porter des gants secs et sans
trous pour isoler les mains.

b. Faire trés attention de bien s’isoler de la masse quand on

soude dans des endroits humides, ou sur un plancher
metallique ou des grilles metalliques, principalement dans
les positions assis ou couché pour lesquelles une grande
partie du corps peut être en contact avec la masse.

c. Maintenir le porte-électrode, la pince de masse, le câble

de soudage et la machine à souder en bon et sûr état
defonctionnement.

d.Ne jamais plonger le porte-électrode dans l’eau pour le

refroidir.

e. Ne jamais toucher simultanément les parties sous tension

des porte-électrodes connectés à deux machines à souder
parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.

f. Si on utilise la machine à souder comme une source de

courant pour soudage semi-automatique, ces precautions
pour le porte-électrode s’applicuent aussi au pistolet de
soudage.

zones où l’on pique le laitier.

6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque d’incendie dû aux étincelles.

7. Quand on ne soude pas, poser la pince à une endroit isolé de
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.

8. S’assurer que la masse est connectée le plus prés possible
de la zone de travail qu’il est pratique de le faire. Si on place
la masse sur la charpente de la construction ou d’autres
endroits éloignés de la zone de travail, on augmente le risque
de voir passer le courant de soudage par les chaines de lev­age, câbles de grue, ou autres circuits. Cela peut provoquer
des risques d’incendie ou d’echauffement des chaines et des
câbles 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 tôles
galvanisées plombées, ou cadmiées ou tout autre métal qui
produit des fumeés toxiques.

10. Ne pas souder en présence de vapeurs de chlore provenant
d’opé rations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs
du 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” CSA
Standard W 117.2-1974.

2. Dans le cas de travail au dessus du niveau du sol, se prot
contre les chutes dans le cas ou on recoit un choc. Ne jamais
enrouler le câble-électrode autour de n’importe quelle partie
du 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 approprié

ainsi qu’un verre blanc afin de se protéger les yeux du ray­onnement de l’arc et des projections quand on soude ou
quand on regarde l’arc.

b. Porter des vêtements convenables afin de protéger la

peau de soudeur et des aides contre le rayonnement de
l‘arc.

c. Protéger l’ autre personnel travaillant à proximité au

soudage à l’aide d’écrans appropriés et non-inflammables.

4. Des gouttes de laitier en fusion sont émises de l’ arc de
soudage. Se protéger avec des vêtements de protection libres
de l’huile, tels que les gants en cuir, chemise épaisse, pan­talons sans revers, et chaussures montantes.

5. Toujours porter des lunettes de sécurité dans la zone de
soudage. Utiliser des lunettes avec écrans lateraux dans les

éger

PRÉCAUTIONS DE SÛRETÉ POUR
LES MACHINES À SOUDER À
TRANSFORMATEUR ET À
REDRESSEUR

1. Relier à la terre le chassis du poste conformement au code de
l’électricité et aux recommendations du fabricant. Le dispositif
de montage ou la piece à souder doit être branchéà une
bonne mise à la terre.

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

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

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

Mar. ‘93

v

ELECTROMAGNETIC COMPATIBILITY (EMC)

Conformance
Products displaying the CE mark are in conformity with European Community Council Directive of 3 May
1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility
(89/336/EEC). It was manufactured in conformity with a national standard that implements a harmonized
standard: EN 50 199 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding Equipment. It
is for use with other Lincoln Electric equipment. It is designed for industrial and professional use.

Introduction
All electrical equipment generates small amounts of electromagnetic emission. Electrical emission may be
transmitted through power lines or radiated through space, similar to a radio transmitter. When emissions are
received by other equipment, electrical interference may result. Electrical emissions may affect many kinds of
electrical equipment; other nearby welding equipment, radio and TV reception, numerical controlled machines,
telephone systems, computers, etc. Be aware that interference may result and extra precautions may be required
when a welding power source is used in a domestic establishment.

SAFETY

v

Installation and Use
The user is responsible for installing and using the welding equipment according to the manufacturer s instructions.
If electromagnetic disturbances are detected then it shall be the responsibility of the user of the welding equipment
to resolve the situation with the technical assistance of the manufacturer. In some cases this remedial action may
be as simple as earthing (grounding) the welding circuit, see Note. In other cases it could involve constructing an
electromagnetic screen enclosing the power source and the work complete with associated input filters. In all cases
electromagnetic disturbances must be reduced to the point where they are no longer troublesome.

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

Assessment of Area
Before installing welding equipment the user shall make an assessment of potential electromagnetic problems in the
surrounding area. The following shall be taken into account:

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

welding equipment;

b) radio and television transmitters and receivers;
c) computer and other control equipment;
d) safety critical equipment, e.g., guarding of industrial equipment;
e) the health of the people around, e.g., the use of pacemakers and hearing aids;
f) equipment used for calibration or measurement;
g) the immunity of other equipment in the environment. The user shall ensure that other equipment being

used in the environment is compatible. This may require additional protection measures;

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

V350-PRO (CE)

3-1-96H
L10093

vi

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SAFETY

ELECTROMAGNETIC COMPATIBILITY (EMC)

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

Methods of Reducing Emissions

Mains Supply
Welding equipment should be connected to the mains supply according to the manufacturer s recomm
If interference occurs, it may be necessary to take additional precautions such as filtering of the mains
Consideration should be given to shielding the supply cable of permanently installed welding equipmen
conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding
connected to the welding power source so that good electrical contact is maintained between the cond
welding power source enclosure.

Maintenance of the Welding Equipment
The welding equipment should be routinely maintained according to the manufacturer s recommendati
access and service doors and covers should be closed and properly fastened when the welding equip
operation. The welding equipment should not be modified in any way except for those changes and adj
covered in the manufacturers instructions. In particular, the spark gaps of arc striking and stabilizing d
be adjusted and maintained according to the manufacturer s recommendations.

Welding Cables
The welding cables should be kept as short as possible and should be positioned close together, runni
to the floor level.

vi

Equipotential Bonding
Bonding of all metallic components in the welding installation and adjacent to it should be considered.
metallic components bonded to the work piece will increase the risk that the operator could receive a s
touching these metallic components and the electrode at the same time. The operator should be insula
such bonded metallic components.

Earthing of the Workpiece
Where the workpiece is not bonded to earth for electrical safety, not connected to earth because of its
position, e.g., ships hull or building steelwork, a connection bonding the workpiece to earth may reduce
in some, but not all instances. Care should be taken to prevent the earthing of the workpiece increasin
of injury to users, or damage to other electrical equipment. Where necessary, the connection of the wo
earth should be made by a direct connection to the workpiece, but in some countries where direct conn
permitted, the bonding should be achieved by suitable capacitance, selected according to national regu

Screening and Shielding
Selective screening and shielding of other cables and equipment in the surrounding area may alleviate
interference. Screening of the entire welding installation may be considered for special applications.

1

Portions of the preceding text are contained in EN50199: "Electromagnetic Compatibility (EMC) pr

arc welding equipment."

1

V350-PRO (CE)

for selecting a QUALITY product by Lincoln Electric. We want you

Thank You

to take pride in operating this Lincoln Electric Company product

••• as much pride as we have in bringing this product to you!

Please Examine Carton and Equipment For Damage Immediately

When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims
for material damaged in shipment must be made by the purchaser against the transportation company at the
time the shipment is received.

Please record your equipment identification information below for future reference. This information can be
found 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 information
you have recorded above.

viivii

Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it

handy 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:

WARNING

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

CAUTION

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

viii

TABLE OF CONTENTS

Page

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

Technical Specifications........................................................................................A-1

Safety Precautions..........................................................................................A-2

Select Suitable Location..................................................................................A-2

Stacking ..........................................................................................................A-2

Tilting...............................................................................................................A-2

Input and Grounding Connections ..................................................................A-2

Power Cord Connection..................................................................................A-2

Connection of Wire Feeders to V350-PRO (CE).............................................A-2

Remote Control of Invertec.............................................................................A-3

Undercarriage Mountings................................................................................A-3

Parallel Operations..........................................................................................A-4

Ouick Disconnect Plugs..................................................................................A-4

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

Additional Safety Precautions ...............................................................................B-1

General Description and Duty Cycle......................................................................B-1

Operational Features and Controls.........................................................B-1 Thru B-3

Remote Control of the Output Control and Weld Terminals..................................B-3

Design Features and Advantages .........................................................................B-4

Auxiliary Power......................................................................................................B-5

Limitations..............................................................................................................B-5

Recommended Processes ....................................................................................B-5

viii

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

General Options / Accessories..............................................................................C-1

“CE” Version........................................................................................................................

Field Installed Options/Accessories.......................................................................C-1

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

Safety Precautions ................................................................................................D-1

C

APACITOR DISCHARGE PROCEDURE..........................................................................D-1

VISUAL INSPECTION...................................................................................................D-1

R

OUTINE MAINTENANCE ............................................................................................D-1

PERIODIC MAINTENANCE ...........................................................................................D-1

Section E ..............................................................................................Troubleshooting

Safety Precautions.................................................................................................E-1

How to Use Troubleshooting Guide.......................................................................E-1

Troubleshooting Guide ...........................................................................E-2 Thru E-3

Fault Codes ...........................................................................................................E-4

Displays.................................................................................................................E-5

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

Parts List ......................................................................................................P389 Series

C-1

A-1

INSTALLATION

A-1

TECHNICAL SPECIFICATIONS -

INVERTEC V350-PRO (CE)

INPUT AC VOLTAGE & DC OUTPUT

Product Ordering Input AC Rated DC Output Output Weight Dimensions

Name Information Voltage Amps/Volts/Duty Cycle Range with Cord HxWxD

50/60 Hz (continuous)

350A / 34V / 60% 14.7”x12.5”x

Invertec 200-220/ 3 Phase 27.8”*

V350- K1728-3 380-400/ 320A / 33V / 60% AMPS 82.5lbs (373x318x

PRO “CE” 415-440/ 1 Phase 5-425 (37.4 kg) 706*)mm

60/50 Hz

275A / 31V /100%

1 & 3 Phase * Includes

handles

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

V350-PRO (CE) INPUT CURRENT (CE)

Recommended Fuse Sizes Based On The U.S. National Electrical Code And Maximum Machine Outputs

Input 50/60 Hz Output Recommended

Voltage Phases 275Amps@ 350Amps@ Line Cord Size Fuse Size Notes

31Volts(100%) 34Volts(60%) AWG[IEC] SIZES
200 3 35 48 6 80A Note 2
220 3 35 48 6 80A Note 2
380 3 21 28 8 50A
400 3 20 27 8 50A
415 3 19 26 8 50A
440 3 18 24 8 50A

Voltage Phases 275Amps@ 320Amps@ Line Cord Size Fuse Size Notes

31Volts(100%) 33Volts(60%)
200 1 ---- ---- --- ----- Note 1
220 1 64 82 4 125A Note 2
380 1 44 55 6 80A Note 2
400 1 40 50 8 80A
415 1 38 48 8 80A
440 1 35 45 8 80A

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

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

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 1/0

60% 350 1/0 2/0

V350-PRO (CE)

A-2

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BLACK

BROWN

INSTALLATION

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

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

CONNECT INPUT POWER LINES, OUTPUT
CABLES, OR CONTROL CABLES.

• Only qualified personnel should perform this
installation.

• Connect the green/yellow lead of the power
cord to ground per appropriate National
Electrical Code.

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

SELECT SUITABLE LOCATION

The Invertec V350-PRO (CE) will operate in harsh
environments. Even so, it is important that simple pre­ventative measures are followed in order to assure
long life and reliable operation.

• The machine must be located where there is free cir­culation of clean air such that air movement in the
back, out the sides and bottom will not be restricted.

• Dirt and dust that can be drawn into the machine
should be kept to a minimum. Failure to observe
these precautions can result in excessive operating
temperatures and nuisance shutdown.

• Keep machine dry. Shelter from rain and snow. Do

not place on wet ground or in puddles.

STACKING

V350-PRO (CE) cannot

TILTING

Place the machine directly on a secure, level surface
or on a recommended undercarriage. The machine
may topple over if this procedure is not followed.

INPUT AND GROUNDING CONNECTIONS

• Only a qualified electrician should connect the

Invertec V350-PRO (CE). Installation should be
made in accordance with the appropriate National
Electrical Code, all local codes and the information
detailed below.

• When received directly from the factory, multiple

voltage machines are internally connected for
440VAC. If 440VAC is the desired input, then the
machine may be connected to the power system
without any setup required inside the machine.

• Initial 200VAC - 415VAC operation will require 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 to ≥ 380.

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

POWER CORD CONNECTION

A 5 meter power cord is wired into the machine.
Follow the power cord connection instructions.
Incorrect connection may result in equipment damage.

be stacked.

A-2

Single Phase Input

Connect green/yellow lead to ground per National
Electrical Code.
Connect blue and brown leads to power.
Wrap black lead with tape to provide 600V insulation.

Three Phase Input

Connect green/yellow lead to ground per appropriate
National Electric Code.
Connect blue, black and brown leads to power.

CONNECTIONS OF WIRE FEEDERS TO V350-PRO (CE)
LN-25 Connection Instructions

• Turn the Invertec power switch "off".

• Connect the electrode cable to the output terminal of

polarity required by electrode. Connect the work lead to
the other terminal.

• LN-25 with Remote Control options can be used with the
"CE" version of the V350. The 6 Pin (K444-1) and 14 pin
(K444-2) remotes can be connected directly to the 6 & 14
pin amphenols. The 42 Volt Remote Voltage and Output
Control (K624-1) Kit can be connected to the V350’s
24/42 VAC amphenol using Remote Control Cable
assembly K627- [ ]. LN-25s with a K431-1 remote kit can
be connected to the V350’s 24/42 VAC amphenol using a
K432 cable and K876 adapter. (See connection diagram
S19899). Or the K432 cable could be modified with a
K867 Universal Adapter Plug (See connection diagram
S19405) to connect it to the V350’s 24/42 VAC amphenol.

LN-7 Connection Instructions

• Turn the Invertec power switch "off".

• Connect the K480 control cable from the LN-7 to the

115VAC 14-pin wire feeder amphenol connector on
the rear of the Invertec.

• Connect the electrode cable to the output terminal of

the polarity required by electrode. Connect the work
lead to the other terminal.

• Set the meter polarity switch on the front of the

Invertec to coincide with wire feeder polarity used.
The wire feeder will now display the welding voltage.

• If K480 is not available, see connection diagram

S19404 for modification of K291 or K404 LN-7 input
cable with K867 Universal Adapter Plug.

• If a remote control such as K857 is to be used with

the LN-7, the remote can be connected directly to
the 6 pin amphenol on the front of the Invertec or
use a K864 adapter to connect the LN-7 and the
remote to the 115VAC 14-pin amphenol connector
on the rear of the Invertec. (See connection diagram
S19901)

V350-PRO (CE)

A-3

INSTALLATION

LN-10 Connection Instructions

• Turn the Invertec power switch "off".

• Connect the K1505 control cable from the LN-10 to

the Invertec 24/42VAC 14-pin amphenol connector
on the rear of the Invertec.

• Connect the electrode cable to the output terminal
of polarity required by the electrode. Connect the
work lead to the other terminal.

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

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

LN-742 Connection Instructions

• Turn the Invertec power switch "off"

• Either a K591 or a K593 Input cable assembly is

required to connect the LN-742 to the Invertec.

• Connect the control cable from the LN-742 to the
24/42 VAC 14-pin wire feeder amphenol on the rear
of the Invertec.

• Connect the electrode cable to the output terminal
of the polarity required by electrode. Connect the
work lead to the other terminal.

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

• If a remote control such as K857 is to be used with

the LN-742, the remote can be connected directly to
the 6pin amphenol on the front of the Invertec or use
a K864 adapter to connect the LN-742 and the
remote to the 24/42VAC 14-pin wire feeder amphe­nol connector on the rear of the Invertec.

A-3

TIG MODULE K930-2

The TIG Module connects to the “CE” version with a
K936-1 (9-14 pin) control cable. Connect the K936-1
to the 115VAC Wire Feeder Amphenol on the rear of
the V350-PRO (CE).

CONNECTION OF WIRE FEEDERS TO V350-PRO (CE)

Wire feeders other than LN-7, LN-10 and LN-25 may
be used provided that the auxiliary power supply
capacity of the Invertec is not exceeded. K867
Universal Adapter Plug may be required. See con­nection diagram S24985 on page F-4.

REMOTE CONTROL OF INVERTEC

Remote Control K857, Hand Amptrol K963 and Foot
Amptrol K870.

UNDERCARRIAGE MOUNTINGS

NOTE: MOUNTING SCREWS CA

MOUNTING HOLE LOCATIONS

CHES INSIDE THE MACHINE.

0.5 IN

11.8

4

N NOT PROTR

3.50

1/4-20 NUT (4 PLACES)

UDE MORE THAN

10.00

M19527

5.50

8/00

Cobramatic Connection Instructions

• Turn the Invertec power switch "off"

• Connect the control cable from the Cobramatic to

the 24/42 VAC 14-pin wire feeder amphenol on the
rear of the Invertec.

• Connect the electrode cable to the output terminal
of the polarity required by electrode. Connect the
work lead to the other terminal.

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

• If a remote control such as K857 is to be used with
the Cobramatic, the remote can be connected
directly to the 6pin amphenol on the front of the
Invertec or use a K864 adapter to connect the
cobramatic and the remote to the 24/42VAC 14-pin
wire feeder amphenol connector on the rear of the
Invertec.

V350-PRO (CE)

A-4

25 mm

1 in.

WELDING CABLE

BOOT

TRIM

SET SCREW

BRASS PLUG

COPPER TUBE

INSTALLATION

PARALLEL OPERATION

The V350-PRO (CE) are operable in parallel in CC
mode. For best results, the currents of each machine
should be reasonably well shared. As an example,
with two machines set up in parallel for a 400 amp
procedure, each machine should be set to deliver
approximately 200 amps, not 300 amps from one and
100 amps from the other. This will minimize nuisance
shutdown conditions. In general, more than two
machines in parallel will not be effective due to the
voltage requirements of procedures in that power
range.
To set machine outputs, start with output control pots
and arc control pots in identical positions. Use the
output control pots to balance the currents and main­tain the desired voltage or current. The arc control
pots should be kept identical on the two machines.

QUICK DISCONNECT PLUGS

A quick disconnect system is used for the welding
cable connections. The welding plug included with the
machine is designed to accept a welding cable size of
1/0 to 2/0.

A-4

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

2. Slide rubber boot onto cable end. The boot end
may be trimmed to match the cable diameter.
Soap or other lubricant will help to slide the boot
over 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. Screw
must apply pressure against welding cable. The
top of the set screw will be well below the surface
of the brass plug after tightening.

6. Slide rubber boot over brass plug. The rubber
boot must be positioned to completely cover all
electrical surfaces after the plug is locked into the
receptacle.

V350-PRO (CE)

B-1
SAFETY PRECAUTIONS

OPERATION

OPERATIONAL FEATURES and CONTROLS:

B-1

WARNING

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.

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

FUMES AND GASES can be danger­ous.

• Keep your head out of fumes.

• Use ventilation or exhaust to remove

fumes from breathing zone.

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

WELDING SPARKS can cause fire or
explosion.

• 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 at

front of this operator’s manual.

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

GENERAL DESCRIPTION

PRODUCT DESCRIPTION & DUTY CYCLE

The Invertec V350-PRO (CE) offers multi mode CV
and CC DC welding and is rated at 350 amps, 34 volts
at a 60% duty cycle with 3 phase input. It is also rated
at 320 amps with single phase input. It is rated at 275
amps, 100% duty cycle.

UPPER CONTROL PANEL

1. AMPS Meter

• Prior to STICK or TIG operation (current flow), the
meter displays preset current value (either 2 amps
or +/- 3% (e.g. 3 amps on 100), whichever is
greater).

• Prior to CV operation, the meter displays four dash­es indicating non-presettable AMPS.

• During welding, this meter displays actual average
amps.

• After welding, the meter holds the actual current
value for 5 seconds. Output adjustment while in the
"hold" period results in the "prior to operation" char­acteristics stated above. The displays blink indicat­ing that the machine is in the "Hold" period.

2. VOLT METER

• Prior to CV operation (current flow), the meter dis­plays desired preset voltage value (+/- .5V).

• Prior to STICK or TIG operation, the meter displays
the Open Circuit Voltage of the Power Source or
four dashes if the output has not been turned on.

• During welding, this meter displays actual average
volts.

• After welding, the meter holds the actual voltage
value for 5 seconds. The displays blink indicating
that the machine is in the "Hold" period.

• Output adjustment while in the "hold" period results
in the "prior to operation" characteristics stated
above.

3. OUTPUT CONTROL

• Output control is conducted via a single turn poten­tiometer.

• 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 hand
Amptrol results in the preset level of current.

4. WELD TERMINALS-REMOTE , ON

• Two status lights indicate the location of trigger con­trol as determined by the "WELD TERMINALS"
push button.

• If trigger control is local "weld terminals on", the ON
display will be lit.

• If trigger control is remote "weld terminals remotely
controlled", the REMOTE display will be lit.

• The unit will power up in "pre-determined preferred"
trigger modes.

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

V350-PRO (CE)

B-2

OFF

OFF OFF

OFF

ON

T STARART

WELD MODE

ARC CONTROLOL

CC-STICK SOFT
CC-STICK CRISP
TIG GTAW

-WIRE

-FLUX CORED

-4+4+4

+2

-2

0

-6

+6

-10

SOFT

CRISP

+10

-8

+8

5

4

3

2

1

0

6

10

9

8

7

SELECT

REMOTETE

ON

REMOTETE

LOCAL

WELD

TERMINALS

OUTPUT

CONTROL

SELECT

SELECT

MPS

A

OLTS

V

OPERATION

B-2

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 will be turned back on once the
unit cools down to an acceptable temperature level.
If the unit was operating in the "REMOTE" mode,
the trigger will need to be opened before or after the
thermal has cleared and closed after the machine
has cooled down to an acceptable temperature to
establish output.

6. CONTROL-REMOTE , LOCAL

• Two status lights indicate the location of output con-

trol as pre-determined by the power sources auto­configure system.

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

• The REMOTE display will be lit when a remote
pot/control is 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 it was last powered down.

7. WELD MODE SELECT

The Mode Control button selects the following welding
modes desired.

CC-STICK SOFT: The Stick Soft process features
continuous control ranging from 5 to 425 amps. This
mode was intended for most SMAW applications, and
Arc Gouging.

• Arc Gouging: Setting the output of the Stick Soft
mode to 425 amps will enable the arc-gouging
mode. The actual output current will depend on the
size of carbon used. The recommended maximum
size carbon is 5/16".

• The Hot Start control regulates the starting current
at arc initiation. Hot Start can be adjusted from min­imum (0), with no additional current added at arc
start, to maximum (10), with double the preset cur­rent or 425 amps (max of machine) added for the
first second after arc initiation.

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

Hidden Middle Control Panel – Process
Set Up Panel

The middle control panel is removable to allow for
upgrades (see Field Installed Options/Accessories).

Additionally, this panel is hidden by an access door to
reduce appeared complexity and provide protection to
the controls.

1
5
6

7

CONTR

SELECT

m

WELD MODE

CC-STICK SOFT
CC-STICK CRISP
TIG GT
CVCV-WIRE
CVCV-FLUX CORED

REMO

LOCAL

MPS

SELECT

11

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

• The Hot Start control regulates the starting current
at arc initiation. Hot Start can adjust starting current
up or down by 25% of the preset value. The recom­mended setting for Hot Start is 5 where the initial
current is equal to the preset current.

2

OL

3

WELD

TERMINALS

REMO

ON

OUTPUT

HOHOT ST

10

ARC CONTR

-10

SOFT

SELECT

+2

+6

+8

+10

CRISP

4

8

12

ON

OFF

V350-PRO (CE)

OFF

9

10

B-3

OPERATION

B-3

• The Arc Control regulates the relative Slope of the
process. Slope dynamically controls the force the
arc has to penetrate an open root. At the minimum
setting, Arc Control is very soft and is similar to the
Stick Soft mode. At the maximum setting, the slope
is reduced, the OCV is reduced, and the operator
has full control off the arc force required to pene­trate an open root joint. For vertical down, open root
pipe welding applications, the recommended setting
is between 8 and 10.

• During welding, a boost circuit increases the avail­able voltage to minimize pop outs. The boost circuit
is independent of the OCV and only operates when
an arc is lit.

TIG GTAW: The TIG mode features continuous con­trol from 5 to 425 amps. The TIG mode can be run in
either the TIG touch start or high frequency assisted
start mode.

• The Hot Start control selects the starting mode

desired. A setting of less than 5, the TIG lift start
mode is selected. The OCV is controlled below 10v
and the short circuit "TIG touch" current is main­tained at 25 amps independent of the preset current.
When the tungsten is lifted, an arc is initiated and the
output is regulated at the preset value. Hot start set­tings between 0 and 5 regulate the arc initiation cur­rent. A setting of 5 results in the most positive arc ini­tiation. 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 50 and 70
volts. If using the Lincoln K930-1 TIG Module, set
the Hot start to 10 for maximum OCV.

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

CV-WIRE: The CV-WIRE mode features continuous
control from 10 to 45 volts. The mode was intended
for most GMAW, FCAW, and MCAW applications.

• The Hot Start control is not used in the CV-WIRE
mode.

• The Arc Control regulates pinch effect. At the mini­mum setting (-10), minimizes pinch and results in a
soft arc. Low pinch settings are preferable for weld­ing with gas mixes containing mostly inert gases. At
the maximum setting (+10), maximizes pinch effect
and results in a crisp arc. High pinch settings are
preferable for welding FCAW and GMAW with CO2.

CV-INNERSHIELD: The CV-INNERSHIELD mode
features continuous control from 10 to 45 volts. This
mode was designed for self-shielded flux cored wires
that require tight voltage control.

• The Hot Start control is not used in the CV-FLUX
CORED mode.

• The Arc Control regulates pinch effect. At the mini­mum setting (-10), minimizes pinch and results in a
soft arc. At the maximum setting (+10), maximizes
pinch effect and results in a crisp arc. Most self­shielded wires work well at an Arc Control setting of 5.

8. HOT START and ARC CONTROL features have
different functions depending on the welding Mode
that is active. Each feature is described under the
welding mode heading. (See Item 6 for specified

Mode Operation)

LOWER CASE FRONT

The output studs, line switch and remote connector
are located on the lower case front.

9. Both STUDS contain "Twist-Mate" connector

inserts.

• The Negative stud is configured to accept the
pass through gas system.

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

11. The METER POLARITY switch is located above
the output connectors. The switch provides a work
connection for wire feeder voltmeters. Place the
switch in the position of the electrode polarity indi­cated by the decal. The switch does not change

the welding polarity.

12. 6-PIN AMPENOL for remote control.

REMOTE CONTROL of the OUTPUT CON­TROL andWELD TERMINALS

The Invertec V350-PRO (CE) has auto sensing of
remote output controls.If after connecting or removing
a remote, the Invertec V350-PRO (CE) did not config­ured the way you would like the local or remote con­trol settings can be changed by pushing the OUTPUT
CONTROL or WELD TERMINAL button. (A user can­not select between the 6 and 14 pin amphenols.)

CV modes

• The remote will default to the 14-pin amphenol
remote if a remote is connected to either of the 14­pin amphenols and the 6-pin amphenol. Note: Only
one of the 14-pin amphenols can have a remote
control connected at a time. If no remote is connect­ed to either of the 14-pin amphenols then the
remote will default to the 6-pin amphenol if a remote
is connected to it.

• If a remote control is connected or is not connect-
ed to any of the amphenols the WELD TERMINAL

control will default to REMOTE.

V350-PRO (CE)

B-4

TIG mode

• The remote will default to the 6-pin amphenol if a
remote control is connected to the 6-pin amphenol
and one of the 14-pin amphenols. If a remote is not
connected to the 6-pin amphenol then the remote
will default to the 14-pin amphenols if a remote is
connected to one of the 14-pin amphenols.

• If a remote control is connected to any of the
amphenols the WELD TERMINAL control will
default to REMOTE. If there are not any remote
control devices attached the WELD TERMINAL con­trol will default to ON.

CC-Stick modes

• The remote will default to only the 6-pin amphenol if
a remote is connected to it.

• The WELD TERMINAL control will default to ON
with or without a remote connected.

Types of Remote OUTPUT CONTROL

• The Invertec V350-PRO (CE)’s Output Control can
be controlled by either a potentiometer connected
between 77 & 75 with the wiper connected to 76 or
a 0V to 10V DC supply connected between 76 & 75.
(76 needs to be positive)

• 14-Pin Amphenol lead 75 is pin G, lead 76 is pin F
and lead 77 is pin E.

• 6-Pin Amphenol lead 75 is pin C, lead 76 is pin 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 is
connected to 75. The machine’s output will increase
as the wiper of the potentiometer is moved to the
end that is connected to 77. (Note: In TIG mode,
moving the lead 76 (wiper) to lead 77 would pro­duce the current that has been set by the Invertec
V350-PRO (CE)’s front panel Output Control.)

• Remotes of this type offered by Lincoln Electric are
the K857, K812 and K870.

Voltage Control

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

• 0 volts supplied to 76 will set the Invertec V350­PRO (CE) to minimum output for the mode that has
been selected while 10 volts supplied to 76 will set
the Invertec V350-PRO (CE) to the maximum output
for the mode. (Note: In TIG mode, 10 volts supplied
to lead 76 would produce the current that has been
set by the Invertec V350-PRO (CE)’s front panel
Output Control.)

OPERATION

The

B-4

Types of Remote WELD TERMINAL Control

• The Invertec V350-PRO (CE)’s Weld Terminals can
be controlled from each of the amphenol connec­tors. The circuit has a nominal OCV of 15VDC and
requires a dry contact closure (less than 100 ohms)
to activate the output of the Invertec V350-PRO
(CE).

• 14 Pin Amphenols the Weld Terminals are controlled
from pins C (lead 2) and pin D (lead 4). Pin C is posi­tive.

• 6 Pin Amphenol the Weld Terminals are controlled
from pin D (lead 2) and pin E (lead 4). In the 6-pin
amphenol pin D is positive.

DESIGN FEATURES and ADVANTAGES

• Multiple process DC output range: 5 - 425 amps

• Pre-settable 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 determina­tion of input configuration. The reconnect door is
fastened with 1/4-turn connectors that allow quick
and easy access to the reconnect area. Circuit
breaker protected auxiliary.

• System Self Configure. The power source analyzes
the remote controls connected to the amphenols
and the desired welding mode to properly determine
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

• Power Cord included.

V350-PRO (CE)

B-5

AUXILIARY POWER

• 115VAC, 42VAC and 24VAC power is available
from the two 14-pin amphenols on the rear of the
unit. (K1728-2 Construction model of the Invertec
V350-PRO (CE) does not have the amphenols)
These supplies are intended to supply power for
auxiliary equipment like wire feeders and the TIG
Module.

• 115VAC supply is rated at 2 amps and is protected
by a 2.5 amp breaker located by the amphenol.

• 42 VAC supply is rated at 5.5 amps and is protected
by a 6 amp breaker located by the amphenol.

• 24 VAC supply is rated at 5.5 amps and is protected
by a 6 amp breaker located by the amphenol.

LIMITATIONS

• The V350-PRO (CE) is not recommended for
processes other than those listed.

• The V350-PRO (CE) can only be used with the rec­ommended equipment and options.

RECOMMENDED PROCESSES

Properly equipped, the Invertec V350-PRO (CE)
supports GMAW, FCAW, SMAW, GTAW and CAC­A processes for a variety of materials, including
mild steel, stainless steel, cored wires, and alu­minum

OPERATION

B-5

V350-PRO (CE)

C-1

ACCESSORIES

OPTIONS / ACCESSORIES

"CE" VERSION – K1728-3

• The "CE" version is the Factory version with the
addition of power line filtering allowing the machine
to comply with the European and Australian EMC

emission requirements.

• In this form, the V350-PRO (CE) provides the hard­ware to
feeders.

K857 Remote Output Control
K814 Arc Start Switch
K812 Hand Operated Amptrol
K870 Foot Operated Amptrol
K930-1 TIG Module
K428, K446, K449 LN-25
K617 (-1 or -2) K618 (-1 or -2) LN-742
K440 (-1), K567-1 LN-7 GMA
K1559-1, K1564-1 LN-10
K1499-1, K1521-1 DH-10

power and connect to 24, 42 or 115 VAC wire

C-1

FIELD INSTALLED OPTIONS/ACCESSORIES

Options for K1728-1 Factory and K1728-3 "CE"
V350’s

• TIG Gas Control Kit – K1762-1

• Advance Process Panel – K1763-1

• Undercarriage – K1764-1

• Valet Style Undercarriage – K1838-1

V350-PR0 (CE)

D-1

CAPACITOR
TERMINALS

RESISTOR

MAINTENANCE

D-1

SAFETY PRECAUTIONS

WARNING

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

-

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 cause
injury.

•

Failed parts can explode or cause other

parts to explode when power is applied.

•

Always wear a face shield and long

sleeves when servicing.

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

See additional warning information

throughout this operator’s manual and
the Engine manual as well.

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

CAPACITOR DISCHARGE PROCEDURE

1. Obtain a power resistor (25 ohms, 25 watts).

2. Hold resistor body with electrically insulated glove.
DO

NOT TOUCH TERMINALS. Connect the resis­tor terminals across the two studs in the position
shown. Hold in each position for 1 second. Repeat
for all four capacitors.

VISUAL INSPECTION

Clean interior of machine with a low pressure air
stream. Make a thorough inspection of all compo­nents. Look for signs of overheating, broken leads or
other obvious problems. Many problems can be
uncovered with a good visual inspection.

ROUTINE MAINTENANCE

1. Every 6 months or so the machine should be
cleaned with a low pressure airstream. Keeping
the machine clean will result in cooler operation
and 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 con­dition to insure that high voltage parts are protected and
correct spacings are maintained. All external sheet
metal screws must be in place to insure case strength
and electrical ground continuity.

PERIODIC MAINTENANCE

Overload Protection

The machine is electrically protected from producing
high output currents. Should the output current
exceed 430A, an electronic protection circuit will
reduce the current to approximately 100A. The
machine will continue to produce this low current until
the protection circuit is reset. Reset occurs when the
output load is removed.

3. Use a DC voltmeter to check that voltage is not
present across the terminals on all four capacitors.

V350-PRO (CE)

Thermal Protection

Thermostats protect the machine from excessive
operating temperatures. Excessive temperatures may
be caused by a lack of cooling air or operating the
machine beyond the duty cycle and output rating. If
excessive operating temperature should occur, the
thermostat will prevent output voltage or current. The
meter will remain energized during this time.

Thermostats are self-resetting once the machine cools
sufficiently. If the thermostat shutdown was caused by
excessive output or duty cycle and the fan is operating
normally, the Power Switch may be left on and the
reset should occur within a 15 minute period.

E-1

TROUBLESHOOTING

HOW TO USE TROUBLESHOO TING GUIDE

WARNING

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 and
machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical
Shock, please observe all safety notes and precautions detailed throughout this manual.

__________________________________________________________________________

E-1

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

Step 1. LOCATE PROBLEM (SYMPTOM).

Look under the column labeled “PROBLEM (SYMP­TOMS)”. This column describes possible symptoms
that the machine may exhibit. Find the listing that
best describes the symptom that the machine is
exhibiting.

Step 2. POSSIBLE CAUSE.

The second column labeled “POSSIBLE CAUSE” lists
the obvious external possibilities that may contribute
to the machine symptom.

Step 3. RECOMMENDED COURSE OF ACTION

This column provides a course of action for the
Possible Cause, generally it states to contact your
local Lincoln Authorized Field Service Facility.

If you do not understand or are unable to perform the
Recommended Course of Action safely, contact your
local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

V350-PRO (CE)

E-2

PROBLEMS

(SYMPTOMS)

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

POSSIBLE AREAS OF

MISADJUSTMENT(S)

RECOMMENDED

COURSE OF ACTION

E-2

Major physical or electrical damage
is evident when the sheet metal
covers are removed.

Input fuses keep blowing, or input
breaker keeps tripping

Machine will not power up (No
lights)

1. Contact your local authorized
Lincoln Electric Field Service
facility for technical assistance.

1. Make certain that the fuses or
breakers are properly sized. See
installation section of the manual
for recommended fuse and
breaker sizes.

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

3. There is internal damage to the
power source. Contact an autho­rized Lincoln Electric Service
facility.

1. Make certain that the power
switch is in the "ON" position.

2. The circuit breaker in the recon­nect area may have opened.
Reset. Check input voltage sec­tion below.

3. Input voltage selection made
improperly. Power down, check
input voltage reconnect accord­ing to diagram on reconnect
cover.

I

f all recommended possible areas
of misadjustment have been
checked and the problem persists,

Contact your local Lincoln
Authorized Field Service Facility.

Machine won’t weld, can’t get any
output.

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

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

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

4. If the output terminals are in
Remote control switch to "ON"
and check for output voltage. If
output voltage is now present
check for correct remote control
connection and operation.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

V350-PRO (CE)

E-3

PROBLEMS

(SYMPTOMS)

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

POSSIBLE AREAS OF

MISADJUSTMENT(S)

RECOMMENDED

COURSE OF ACTION

E-3

Thermal symbol is lit

Wire feeder won’t work. Apparently
no power to wire feeder

1. Check for proper fan operation

2. Check for material blocking
intake or exhaust louvers.

1. Check circuit breakers by the
wire feeder receptacles on the
rear of the machine. Reset

2. Check to make sure the wire
feeder is connected to the correct
wire feeder receptacle. (115VAC
or 24/42VAC)

3. Check the control cable between
the power source and the wire
feeder for continuity.

I

f all recommended possible areas
of misadjustment have been
checked and the problem persists,

Contact your local Lincoln
Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

V350-PRO (CE)

E-4

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-4

Fault Codes

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

contact an authorized be turned off and back
Lincoln Field Service

on to reset the machine.

Shop
32 CAP bank A under voltage. Check input power Self-clearing as
33 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 power

of balance. reconnect to make sure

the machine is

connected for the input

power being supplied.
44 Main CPU problem. The DSP Check the machine

has detected a problem with the ground.
CPU.

47 Glitch on the CAP/heart beat If problem persists

interrupt; possibly caused by contact an authorized
noise or a signal level right at Lincoln Field Service
the trip threshold. Shop
(misc. hardware fault #2)

48 The main contactor opened If condition persist Self-clearing

unexpectedly. (misc. hardware contact an authorized
fault #3) Lincoln Field Service

Shop
"bad The selected weld mode does If condition persists Press the Mode
node’ not exist in the weld table that is contact an authorized Select button to
“####”

presently loaded in the machine. Lincoln Field Service select a different

Shop mode

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

V350-PRO (CE)

E-5

Observe all Safety Guidelines detailed throughout this manual

TROUBLESHOOTING

Displays Description

E-5

Scrolling dash

Appears at power up while the machine is going through its self configu­ration

"Err" "####" Fault code display. The first fault to occur will be displayed for three

seconds. The display will cycle through fault codes for all faults that
persist 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 a

workpoint 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. If

not actively welding, the display will show workpoint.
"####" "####" (blinking) weld just finished – the average arc voltage and current will be

blinked for 5 seconds following a weld. If the workpoint changes dur-

ing this 5 second period, the display will revert to the above mode.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

V350-PRO (CE)

F-1

DIAGRAMS

2) K963 HAND AMPTROL

3) K870 FOOT AMPTROL

TO: 1) K857 REMOTE CONTROL

CABLE RECEPTACLE (6 SOCKET)

TO: 1) LN-7 WIRE FEEDERS

CABLE RECEPTACLE (14 SOCKET)

F-1

S19309

4-19-96D

TO: 1) LN-25 WIRE FEEDERS

CABLE RECEPTACLE (6 SOCKET)

TURN THE POWER SWITCH OF THE WELDING POWER

SOURCE "OFF" BEFORE INSTALLING PLUGS ON CABLES

OR WHEN CONNECTING OR DISCONNECTING PLUGS TO

WELDING POWER SOURCE.

REMOTE CONTROL ADAPTERS

STRAIGHT PLUG (14 PIN)

TO POWER SOURCE

K864

V350-PRO (CE)

STRAIGHT PLUG (14 PIN)

TO POWER SOURCE

K876

F-2

S19404

S19404

LN-7

CONTROL

BOX

LN-7

CONTROL

BOX

N.C.

N.C.

DIAGRAMS

K291 OR K404

K291 OR K404

2

4

2

32

32

4

21

21

31

31

INPUT CABLE

INPUT CABLE

GREEN

GREEN

757677

757677

GND

GND

K775 OPTIONAL

REMOTE CONTROL

K775 OPTIONAL

REMOTE CONTROL

F-2

12-10-93A

2

4

2

828142

828142

SPARE

SPARE

service this machine.

service this machine.

Only qualified persons should install, use or

Only qualified persons should install, use or

Before connecting the wire feeder.

Before connecting the wire feeder.

using the disconnect switch at the fuse box

using the disconnect switch at the fuse box

Turn off input power to the Welding Power Source

Turn off input power to the Welding Power Source

SHOCK

SHOCK

ELECTRIC

ELECTRIC

CAN KILL

WARNING

WARNING

CAN KILL

41

41

14 PIN

AMPHENOL

14 PIN

AMPHENOL

31

31

32

32

4

K867 PLUG TO LN-7 - CONNECTION DIAGRAM

21

21

K867 UNIVERSAL

K867 UNIVERSAL

757677

757677

GND

GND

ADAPTER PLUG

ADAPTER PLUG

N.D.

N.D.

-

TO

WORK

TO

ELECTRODE CABLE

ELECTRODE CABLE

WORK

TO LN-7

TO LN-7

-

V350-PRO (CE)

+

+

AUXILIARY POWER

POWER SOURCE

POWER SOURCE

INVERTEC

INVERTEC

AUXILIARY POWER

WITH 115VAC

WITH 115VAC

N.D. SPLICE LEADS AND INSULATE.

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO CHANGE POLARITY, TURN POWER "OFF",

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

REVERSE ELECTRODE AND WORK CABLE AT POWER SOURCE.

N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO CHANGE POLARITY, TURN POWER "OFF",

REVERSE ELECTRODE AND WORK CABLE AT POWER SOURCE.

N.D. SPLICE LEADS AND INSULATE.

N.C. INSULATE EACH UNUSED LEAD INDIVIDUALLY.

N.C. INSULATE EACH UNUSED LEAD INDIVIDUALLY.

F-3

DIAGRAMS

LN-25 WITH

K431 OPTION

E

N.C.

F-3

S19405

1-25-91

K432 REMOTE

CONTROL CABLE

B

D

F

C77

A

N.D.

2

2182814241

service this machine.

Only qualified persons should install, use or

Before connecting the wire feeder.

using the disconnect switch at the fuse box

Turn off input power to the Welding Power Source

SHOCK

ELECTRIC

WARNING

CAN KILL

31

GND

14 PIN

AMPHENOL

32

4

SPARE

K867 PLUG TO LN-25 - CONNECTION DIAGRAM

75

76

K867 ADAPTER

N.E.

WORK

-

TO

ELECTRODE CABLE

TO LN-25

V350-PRO (CE)

+

INVERTEC

POWER SOURCE

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO CHANGE POLARITY, TURN POWER "OFF",

REVERSE ELECTRODE AND WORK CABLE AT POWER SOURCE.

N.C. INSULATE EACH UNUSED LEAD INDIVIDUALLY.

N.D. REMOVE 6 PIN PLUG FROM K432 CABLE IN ORDER TO CONNECT K867 PLUG.

LABEL EACH LEAD (A THRU F) AS THEY ARE REMOVED FROM 6 PIN PLUG.

N.E. SPLICE LEADS AND INSULATE.

F-4

N.C.

N.D.

DIAGRAMS

REMOTE OUTPUT CONTROL

F-4

3-1-00

S24985

NOT USED ON INVERTEC

CONNECT TOGETHER FOR WELDING OUTPUT

24 VAC / 5.5 AMP

2

4

82

81

service this machine.

Only qualified persons should install, use or

Before connecting the wire feeder.

using the disconnect switch at the fuse box

Turn off input power to the Welding Power Source

SHOCK

ELECTRIC

WARNING

CAN KILL

24 VAC / 5.5 AMP

41

SPARE

14 PIN

115 VAC / 2 AMP

42 VAC / 5.5 AMP

42

INVERTEC FRAME CONNECTION

31

32

GND

AMPHENOL

TO

MIN.

10K

WIRE FEEDER VOLTMETER CONNECTION

CONNECTS TO (WORK TERMINAL) OF INVERTEC

21

77

76

75

K867 UNIVERSAL

ADAPTER PLUG

WIRE FEEDER

2

4

TO

K867

K867 UNIVERSAL ADAPTER / INVERTEC - CONNECTION DIAGRAM

WORK

-

TO

ELECTRODE CABLE

V350-PRO (CE)

+

INVERTEC

POWER SOURCE

WITH 115VAC

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

AUXILIARY POWER

N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO CHANGE POLARITY, TURN POWER "OFF",

REVERSE ELECTRODE AND WORK CABLE AT POWER SOURCE.

N.D. FOR WIRE FEEDERS THAT RETURN A SIGNAL FOR WELDING OUTPUT, USE ISOLATION

RELAY TO CLOSE LEADS 2 & 4.

N.C. INSULATE EACH UNUSED LEAD INDIVIDUALLY.

F-5

DIAGRAMS

LN-25 WITH

K431 OPTION

6 PIN

AMPHENOL

K432 REMOTE

CONTROL CABLE

F-5

1-25-91

S19899

service this machine.

Only qualified persons should install, use or

Before connecting the wire feeder.

using the disconnect switch at the fuse box

Turn off input power to the Welding Power Source

SHOCK

ELECTRIC

WARNING

CAN KILL

14 PIN

AMPHENOL

K876 ADAPTER

K876 ADAPTER TO LN-25 - CONNECTION DIAGRAM

WORK

-

TO

ELECTRODE CABLE

TO LN-25

+

INVERTEC

POWER SOURCE

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO CHANGE POLARITY, TURN POWER "OFF",

REVERSE ELECTRODE AND WORK CABLE AT POWER SOURCE.

N.C. FOR INVERTECS WITH 6 PIN AMPHENOL, K432 CABLE CAN BE CONNECTED DIRECTLY.

V350-PRO (CE)

F-6

LN-7

CONTROL

BOX

14 PIN

AMPHENOL

DIAGRAMS

K857

K480-7 INPUT CABLE

6 PIN

AMPHENOL

REMOTE CONTROL

K963

HAND AMPTROL

K870

FOOT AMPTROL

OR

OR

F-6

4-19-96D

S19901

service this machine.

Only qualified persons should install, use or

Before connecting the wire feeder.

using the disconnect switch at the fuse box

Turn off input power to the Welding Power Source

ADAPTER

K864

WARNING

SHOCK

ELECTRIC

CAN KILL

14 PIN

AMPHENOL

K864 ADAPTER TO LN-7 & REMOTE CONTROL - CONNECTION DIAGRAM

WORK

-

TO

ELECTRODE CABLE

TO LN-7

+

INVERTEC

AUXILIARY POWER

WITH 115VAC

POWER SOURCE

N.A. WELDING CABLE MUST BE SIZED FOR CURRENT AND DUTY CYCLE OF APPLICATION.

N.C. K480-7 INPUT CABLE CAN BE CONNECTED DIRECTLY IF REMOTE CONTROL IS NOT REQUIRED.

N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO CHANGE POLARITY, TURN POWER "OFF",

REVERSE ELECTRODE AND WORK CABLE AT POWER SOURCE.

N.D. K864 ADAPTER CANNOT BE USED WITH AN LN-25.

V350-PRO (CE)

F-7

ENHANCED DIAGRAM

RIGHT SIDE OF MACHINE

WIRING DIAGRAM INVERTEC V350-PRO (CE)

}

INPUT

PER

DIAGRAMS

E

A

CH

IN

F M

O

FR

NT

O

1

2

J10A,

6498327

1

510

STATU

6

5

2

1

802

801

806

201

C2,C4

+

FAN
115V

COM2

FAN

2
4

1

6

CURRENT

TRANSDUCER

4A

J331

J7

16

15

715

716

205

541

24

42

31

532

41A
54

P56

PRIMARY

J37

275

277

276

3

24

1

J311

S

105

J34

75

2A

2

76

4

77

8

0

1

8

0
8

0

J90

32

8

0

4

4

2

77

75

76

12

11
5

6

410

REMOT

B

N

RI-I

P

UT

RI-O

P

6

I

P52

16

7

5

11
1

6

1

FAN

FAN

RECONNECT

DISPLAY

POT

CONTROL

277

275

276

J31

R5

10K/2W

72

6

94

MOD

38

1

75A

77A

+

C

D

EFAB

+

W )
E

VI
AR

E

6 PIN

(R

REMOTE

TP4

901B

R1

901A

901

553

76A

551

552

554

93

7

28

1

5101649

J33

E

J1

J6

15

16

7

8

607

608

615

616

X2

X20

L1

T

OS

BO

C

SE

REACTOR

X30

X3

X

1

2

7

3

N

PRI-O UT

204

208

COM1

24V

AUXILIARY

28V

H6

42V

H5
H4
H3
H2

COM2A

H1

COM2

115V

FAN

207A

203

206

E

H

IN

61

73894

10

2

5

E

TP5

903B

903A

S1

21

21B

8

3

27

CONTROL

1011121314
2

5

3

4

6

605

611

602

610

612

609

X30

506

503

xxxxxxx

CHOKE

X10

T

OS

BO

C

SE

A

RI-I

P

XFMR

MAIN

N.E.

XFMR

A

INPUT

BRIDGE

AA

2A

202

CB2

( 380-575VAC POSITION )

N.C.

AC

O

F M

R

E

AR

_

903

1

6

78

2

J2

9

1

L2

X40

X4

TP3

A

+

209

3

9

4

5

10

J3

7

4

0

1

7

1

8

4

0

2

J4

2

4

0

3

389

0

46

J5

10

1

4

0

5

5

3

4

1112

2

4

0

2

502

6

1

503

506

411

410

412

407

2

505

5

41

J42

REACTOR

TP1

A

D

200-

H2

380-

H4

CONTROL

X10

C

B

H1

TP2

C

B

_

_

F

E

207

207A

220-

230V

H3

415V 208V

440-

460V

H5

550-

575V

H6

LOR CODE:

N = BROWN

U = BLUE

Y = YELLOW

W = WHITE

R = RED

G = GREEN

B = BLACK

CO

IN PARANT HESYS COLORS

FOR CE MACHINES

CB1

BREAKER

100 A CIRCUIT

A

B(U)

U

B

R(B)

V

C

W(N)

W

G(G/Y)

J11

1

2

1010

10201002

J10B

2

1

1001

J10A

J9

J8

7

8

5

6

4

2

3

3

1

4

901

903

804

1001,1002,

1010,1020

502

610

608

605

1020

1010

786

3

4

208

J21

C1,C3

3200/300

+

206 203

205

209

2

3

1

SWITCH

J20

7

84

6

5

716

715

602

611

609

612

615

607

505

616

1001

1002

xxxxxxx

5

2

1

201

207

3200/300

202

204

4

J22

12

3

N.D.

N.A.

IT
CU

R
CI

EX
I FL

SP

IT
CU

R
CI

EX
I FL

SP

IT
CU

R
CI

EX
I FL

SP

IT
CU

R
CI

EX
I FL

SP

4

0

4

0

4

1

4

1

4

1

408

65

66

3

132

6

4

J41

65

+

C5

2400/80

66

RECTIFIER

OUTPUT

RECTIFIER

X2

X4

GAS

SOLENOID

553

+

554

438

431

432

1

7

J43

41A

31

32

J

A

GND

42

J

A

GND

DISPLAY

STATUS

MODE

FOR MACHINES WITH REMOTE BOARD

REMOTE

CONTROL

552

551

2

1

3

P55

438

431

401

405

406

403

432

5

4

3

2

8

9

11

10

POWER

+

65B

~

~

-

66B

SNUBBER

X20

X30

X40

21

75A

H

I

G

F

N

K

M

L

E

D

B

C

4A

4B

2B

2A

GND

32

CB2

41

21B

24

75B

41B

H

I

G

F

N

K

M

L

E

B

D

C

4B

2B

41B

6A 2A

41

CB1

DISPLAY

LEGEND

ALL MACHINES

OPTION

COMPONENT OUTLINE

FOR MACHINES WITHOUT REMOTE BOARD

SPI FLEX CIRCUIT CONNECTION DETAIL

CONTROL MODE STATUS

ON "CE" MODELS.

N.D. INPUT POWER LINE FILTER IS PRESENT ONLY

4

402

6

12

54

X10

LEFT SIDE OF MACHINE

21,21B,2A,4A,

75A,76A,77A

SNB

75B

76A

W)
E

76B

VI
AR

E

77A

(R

REMOTE

77B

115V WIRE FEEDER

532

W )
E

VI

76B

AR
E

REMOTE

(R

77B

24/42V WIRE FEEDER

541

NOTES:

N.A. 1. FOR MACHINES WITH RED, BLACK AND WHITE POWER CORDS

J10B

J43, J331

J8,

J20,J21

J9, J42, P53

J22, J41,

J2,J5, J11,

J311, P55

J34,J37

J31,J33,

LINE FILTER.

J1,J6,J7, P52

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

N.C. PLACE "A" LEAD ON APPROPRIATE CONNECTION FOR INPUT VOLTAGE.

CONNECTION SHOWN IS FOR 550-575V OPERATION. (CE MODELS ONLY GO TO 440VAC.)

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.

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 THRE E PHASE INPUT: CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRIC CODE.

CONNECT BLACK, RED & WHITE LEADS TO SUPPLY CIRCUIT.

2. F OR MACHINES WITH BROWN, BLACK AND BLUE POWER CORDS

6

12

7

1

4

8

1

5

3

6

1

4

4

21

3

CONNECTOR CAVITY NUMBERING SEQUENCE

5

10

1

6

16

8

1

9

BASE

CASE FRONT

PROTECTIVE BONDING CIRCUIT

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.

F OR THREE PHASE INPUT: CONNECT GREEN/YELLOW GROUND PER NATIONAL ELECTRIC CODE.

11-2000C

(VIEWED FROM COMPONEN T SIDE OF BOARD)

ELECTRICAL SYMBOLS PER E 1537

CONNECT BLUE, BLACK & BROWN LEADS TO SUPPLY CIRCUIT.

F-7

G3707

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside

the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number..

V350-PRO (CE)

F-8

DIAGRAMS

F-8

27.82

21.60

3.44

5.50

UDE MORE THAN

10.00

N NOT PROTR

MOUNTING HOLE LOCATIONS

CHES INSIDE THE MACHINE.

0.5 IN

NOTE: MOUNTING SCREWS CA

3.50
1/4-20 NUT (4 PLACES)

8/00

M19527

4

11.8

DIMENSION PRINT

9

4.7

1

V350-PRO (CE)

0

2.44

13.1

1

NOTES

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The Procedure Handbook of Arc Welding

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WARNING

Spanish

AVISO DE

PRECAUCION

● Do not touch electrically live parts or

electrode with skin or wet clothing.

● Insulate yourself from work and

ground.

● No toque las partes o los electrodos

bajo carga con la piel o ropa moja­da.

● Aislese del trabajo y de la tierra.

● Keep flammable materials away.

● Mantenga el material combustible

fuera del área de trabajo.

● Wear eye, ear and body protection.

● Protéjase los ojos, los oídos y el

cuerpo.

French

ATTENTION

German

WARNUNG

Portuguese

ATENÇÃO

Japanese

Chinese

Korean

Arabic

● Ne laissez ni la peau ni des vête-

ments mouillés entrer en contact
avec des pièces sous tension.

● Isolez-vous du travail et de la terre.

● Berühren Sie keine stromführenden

Teile oder Elektroden mit Ihrem
Körper oder feuchter Kleidung!

● Isolieren Sie sich von den

Elektroden und dem Erdboden!

● Não toque partes elétricas e elec-

trodos com a pele ou roupa molha­da.

● Isole-se da peça e terra.

● Gardez à l’écart de tout matériel

inflammable.

● Entfernen Sie brennbarres Material!

● Mantenha inflamáveis bem guarda-

dos.

● Protégez vos yeux, vos oreilles et

votre corps.

● Tragen Sie Augen-, Ohren- und Kör-

perschutz!

● Use proteção para a vista, ouvido e

corpo.

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

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS
CONSUMIBLES 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 A
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER­STELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.

● Keep your head out of fumes.

● Use ventilation or exhaust to

remove fumes from breathing zone.

● Turn power off before servicing.

● Do not operate with panel open or

guards off.

WARNING

● Los humos fuera de la zona de res-

piración.

● Mantenga la cabeza fuera de los

humos. Utilice ventilación o
aspiración para gases.

● Gardez la tête à l’écart des fumées.

● Utilisez un ventilateur ou un aspira-

teur pour ôter les fumées des zones
de travail.

● Vermeiden Sie das Einatmen von

Schweibrauch!

● Sorgen Sie für gute Be- und

Entlüftung des Arbeitsplatzes!

● Mantenha seu rosto da fumaça.

● Use ventilação e exhaustão para

remover fumo da zona respiratória.

● Desconectar el cable de ali-

mentación de poder de la máquina
antes de iniciar cualquier servicio.

● Débranchez le courant avant l’entre-

tien.

● Strom vor Wartungsarbeiten

abschalten! (Netzstrom völlig öff­nen; Maschine anhalten!)

● Não opere com as tampas removidas.

● Desligue a corrente antes de fazer

serviço.

● Não toque as partes elétricas nuas.

● No operar con panel abierto o

guardas quitadas.

● N’opérez pas avec les panneaux

ouverts ou avec les dispositifs de
protection enlevés.

● Anlage nie ohne Schutzgehäuse

oder Innenschutzverkleidung in
Betrieb setzen!

● Mantenha-se afastado das partes

moventes.

● Não opere com os paineis abertos

ou guardas removidas.

Spanish

AVISO DE

PRECAUCION

French

ATTENTION

German

WARNUNG

Portuguese

ATENÇÃO

Japanese

Chinese

Korean

Arabic

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

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