RED-D-ARC EEX350ii IM764-A 操作手册说明书-USB迷|专注于互联网分享

2024年8月2日发(作者：茆奇思)

For use with machines having Code Numbers:

10945, 11487

OPERATORʼS MANUAL

Red-D-Arc Spec-Built Welding Equipment

This RED-D-ARCwelder is built to RED-D-ARC

Extreme Duty

design specifications by Lincoln Electric.

Safety Depends on You

This welder 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.

1-800-245-3660

North Americaʼs Largest Fleet of Welding Equipment

SAFETY

WARNING

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituents

are known to the State of California to cause can-

cer, birth defects, and other reproductive harm.

TheAboveForDieselEngines

The engine exhaust from this product contains

chemicals known to the State of California to cause

cancer, birth defects, or other reproductive harm.

TheAboveForGasolineEngines

ARC WELDING CAN BE T 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.

FOR ENGINE

powered equipment.

the engine off before troubleshooting and maintenance

work unless the maintenance work requires it to be running.

____________________________________________________

e engines in open, well-ventilated

areas or vent the engine exhaust fumes

outdoors.

avoid scalding, do not remove the

radiator pressure cap when the engine is

hot.

____________________________________________________

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 vaporiz-

ing 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 hands, hair, clothing and

tools away from V-belts, gears, fans and all other moving

parts when starting, operating or repairing equipment.

____________________________________________________

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.

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

fields may interfere with some pacemakers, and

welders having a pacemaker should consult their physician

before welding.

re to EMF fields in welding may have other health

effects which are now not known.

welders should use the following procedures in order to

minimize exposure to EMF fields from the welding circuit:

the electrode and work cables together - Secure

them with tape when possible.

coil the electrode lead around your body.

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.

t the work cable to the workpiece as close as

possible to the area being welded.

not work next to welding power source.

___________________________________________________

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.

Mar ʻ95

SAFETY

ELECTRIC SHOCK can

kill.

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.

ARC RAYS can burn.

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.

suitable clothing made from durable flame-resistant

material to protect your skin and that of your helpers from

the arc rays.

t 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.

te 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.

semiautomatic or automatic wire welding, the electrode,

electrode reel, welding head, nozzle or semiautomatic

welding gun are also electrically “hot”.

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.

the work or metal to be welded to a good electrical

(earth) ground.

3.f.

Maintain the electrode holder, work clamp, welding cableand

welding machine in good, safe operating condition. Replace

damaged insulation.

dip the electrode in water for cooling.

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.

working above floor level, use a safety belt to protect

yourself from a fall should you get a shock.

see and 8.

FUMES AND GASES

can be dangerous.

g may produce fumes and gases

hazardous to health. Avoid breathing these

fumes and 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.

5. b. The operation of welding fume control equipment is affected

by various factors including proper use and positioning of

the equipment, maintenance of the equipment and the spe-

cific welding procedure and application involved. Worker

exposure level should be checked upon installation and

periodically thereafter to be certain it is within applicable

OSHA PEL and ACGIH TLV limits.

5.c.

Do not weld in locations near chlorinated hydrocarbon vapors

coming from degreasing, cleaning or spraying operations.

The heat and rays of the arc can react with solvent vapors to

form phosgene, a highly toxic gas, and other irritating prod-

ucts.

ing 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.

and understand the manufacturerʼs instructions for this

equipment and the consumables to be used, including the

material safety data sheet (MSDS) and follow your

employerʼs safety practices. MSDS forms are available from

your welding distributor or from the manufacturer.

see item 1.b.

AUG 06

iii

SAFETY

WELDING and CUTTING

SPARKS can

cause fire or explosion.

CYLINDER may explode

if damaged.

iii

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.

Remember that welding sparks and hot

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.

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.

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.

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 thoughthey have

been “cleaned”. For information, purchase “Recommended

Safe Practices for the Preparationfor Welding and Cutting of

Containers and Piping That Have Held Hazardous

Substances”, AWS F4.1 from the American Welding Society

(see address above).

hollow castings or containers before heating, cutting or

welding. They may explode.

6.f.

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

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.

t 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 cir-

cuits. This can create fire hazards or overheat lifting chains

or cables until they fail.

see

and folllow NFPA 51B“ Standard for Fire Prevention

During Welding, Cutting and Other Hot Work”, available

from NFPA, 1 Batterymarch Park,PO box 9101, Quincy, Ma

022690-9101.

not use a welding power source for pipe thawing.

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.

keep cylinders in an upright position securely

chained to an undercarriage or fixed support.

ers 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.

allow the electrode, electrode holder or any other

electrically “hot” parts to touch a cylinder.

your head and face away from the cylinder valve outlet

when opening the cylinder valve.

protection caps should always be in place and hand

tight except when the cylinder is in use or connected for

use.

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.

l equipment in accordance with the U.S. National

Electrical Code, all local codes and the manufacturerʼs

recommendations.

the equipment in accordance with the U.S. National

Electrical Code and the manufacturerʼs recommendations.

Jan, 07

SAFETY

PRÉCAUTIONS DE SÛRETÉ

Pourvotre propre protection lire et observer toutes les instruc-

tions et les précautions de sûreté specifiques qui parraissent

dans ce manuel aussi bien que les précautions de sûreté

générales suivantes:

Sûreté Pour Soudage A LʼArc

1. Protegez-vous contre la secousse électrique:

circuits à lʼélectrode 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.

trés attention de bien sʼisoler 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.

jamais plonger le porte-électrode dans lʼeau pour le

refroidir.

e. Ne jamais toucher simultanément les parties sous tension

des porte-électrodes connectés à deux machines à soud-

er 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 sʼapplicuent aussi au pistolet de

soudage.

2. Dans le cas de travail au dessus du niveau du sol, se pro-

téger contre les chutes dans le cas ou on recoit un choc. Ne

jamais enrouler le câble-électrode autour de nʼimporte quelle

partie du corps.

3. Un coup dʼarc peut être plus sévère quʼun coup de soliel,

donc:

a. Utiliser un bon masque avec un verre filtrant approprié

ainsi quʼun verre blanc afin de se protéger les yeux du

rayonnement de lʼarc et des projections quand on soude

ou quand on regarde lʼarc.

b. Porter des vêtements convenables afin de protéger la

peau de soudeur et des aides contre le rayonnement de

lʻarc.

c. Protéger lʼautre personnel travaillant à proximité au

soudage à lʼaide dʼécrans appropriés et non-inflamma-

bles.

4. Des gouttes de laitier en fusion sont émises de lʼarc de

soudage. Se protéger avec des vêtements de protection

libres de lʼhuile, 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

zones où lʼon pique le laitier.

6. Eloigner les matériaux inflammables ou les recouvrir afin de

prévenir tout risque dʼincendie 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 dʼincendie.

8. Sʼassurer que la masse est connectée le plus prés possible

de la zone de travail quʼil est pratique de le faire. Si on place

la masse sur la charpente de la construction ou dʼautres

endroits éloignés de la zone de travail, on augmente le risque

de voir passer le courant de soudage par les chaines de lev-

age, câbles de grue, ou autres circuits. Cela peut provoquer

des risques dʼincendie ou dʼechauffement des chaines et des

câbles jusquʼà ce quʼils 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

dʼopérations de dégraissage, nettoyage ou pistolage. La

chaleur ou les rayons de lʼarc peuvent réagir avec les

vapeurs du solvant pour produire du phosgéne (gas forte-

ment 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.

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 lʼélectricité et aux recommendations du fabricant. Le dis-

positif de montage ou la piece à souder doit être branché à

une bonne mise à la terre.

2. Autant que possible, Iʼinstallation et lʼentretien du poste

seront effectués par un électricien qualifié.

3. Avant de faires des travaux à lʼinterieur de poste, la

debrancher à lʼinterrupteur à la boite de fusibles.

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

place.

Mar. ʻ93

for selecting a QUALITYproduct. We want you to take pride in

operating this product ••• as much pride as we have in bringing

this product to you!

Thank You

CUSTOMER ASSISTANCE POLICY

The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip-

ment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln

Electric for advice or information about their use of our products. We respond to our customers based on the best information in our posses-

sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor-

mation or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customerʼs particular purpose,

with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or

correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any

warranty with respect to the sale of our products.

Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control

of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in

applying these types of fabrication methods and service requirements.

Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to

for any updated information.

PleaseExamineCartonandEquipmentForDamageImmediately

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.

Product _________________________________________________________________________________

Model Number ___________________________________________________________________________

Code Number or Date Code_________________________________________________________________

Serial Number____________________________________________________________________________

Date Purchased___________________________________________________________________________

Where Purchased_________________________________________________________________________

Whenever you request replacement parts or information on this equipment, always supply the information you

have recorded above. The code number is especially important when identifying the correct replacement parts.

On-LineProductRegistration

- Register your machine with Lincoln Electric either via fax or over the Internet.

• For faxing: Complete the form on the back of the warranty statement included in the literature packet

accompanying this machine and fax the form per the instructions printed on it.

• For On-Line Registration: Go to our WEB SITE at . Choose “Quick Links” and then

“Product Registration”. Please complete the form and submit your registration.

Read this Operators Manual completelybefore 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 mustbe followed exactlyto avoid serious personal injuryor loss of life.

CAUTION

This statement appears where the information mustbe followed to avoid minor personal injuryor damage to this equipment.

TABLE OF CONTENTS

Page

Section A

A-1

A-2

Select A-2

A-2

Input and A-2

Power A-2

Connection of Wire Feeders to EX350i ..........................................................A-2

Remote Control A-3

A-3

A-4

________________________________________________________________________

Section B

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

General Description ..............................................................................................B-1

B-1

Operational Features .B-1

Upper B-1, B-2

Hidden Middle B-2 thru B-7

Lower B-8

Remote Control of the Output Control and B-8

B-9

Recommended Processes ....................................................................................B-9

_______________________________________________________________________

Section C

Options / C-1

Field C-1

Quick C-1

________________________________________________________________________

.Section D

D-1

APACITOR

ISCHARGE

ROCEDURE

..........................................................................D-1

ISUAL

NSPECTION

...................................................................................................D-1

OUTINE

AINTENANCE

............................................................................................D-1

ERIODIC

AINTENANCE

...........................................................................................D-1

________________________________________________________________________

Section E

E-1

How to Use E-1

E-2 Thru E-3

.E-4

E-5

________________________________________________________________________

Connection , Wiring Diagrams and Section F

________________________________________________________________________

P-439 Series

________________________________________________________________________

A-1

INSTALLATION

INPUT AC VOLTAGE & DC OUTPUT

Product

OrderingInput AC

Rated DC Output

Output

Open

Range

Circuit

Name

InformationVoltage

Amps/Volt/

(Continuous)

Duty Cycle

200

208-230/

380-400/

AMPS

415-460/

350/34/60%

5-425

80 VDC

EX350i

K1757-2575

300/32/100%

1 & 3

PHASE

50/60Hz

A-1

TECHNICAL SPECIFICATIONS -

RED-D-ARC EX350i

EX350i INPUT CURRENT

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

Input 50/60 HzOutputRecommended

Notes

VoltagePhases300Amps @350Amps @Fuse size

Line Cord

32Volts(100%)34Volts(60%)

AWG

Note 1

2001NotNot---

RecommendedRecommended

Note 2

23016985125A

Note 1

3801NotNot---

RecommendedRecommended

Note 1

4001NotNot---

---

RecommendedRecommended

Note 2

4151416480A

4601364270A

5751313750A

200

208

230

380

400

415

460

575

80A

70A

50A

35A

Note 2

Note 1. Not rated is indicated by 4-xʼs 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.

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) 75°C rated:

DUTY CYCLELENGTH UP TO 200FT.(61m)

CURRENT

100%1/0

300

60%1/0

350

200-250 FT. (61-76m)

1/0

2/0

PHYSICAL DIMENSIONS

Height

14.8”(373mm)

WidthDepthWeight

13.3”(338mm) 27.8” *(706mm*) 84.0 Lbs.(38.0 Kg)

TEMPERATURE RANGES

OPERATING TEMPERATURE RANGE

-20°C to +40°C

Overall Length Including Handle, 27.8” (706mm)

EX350i

STORAGE TEMPERATURE RANGE

-40°C to +40°C

A-2

SAFETY PRECAUTIONS

INSTALLATION

WARNING

ELECTRIC SHOCK can kill.

A-2

•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 National Electrical Code.

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

• 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

380-575.

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

POWER CORD CONNECTION

A 25 ft. power cord is provided and wired into the

machine. Follow the power cord connection instruc-

tions.

CAUTION

• Incorrect connection may result in equipment

damage.

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

SELECT SUITABLE LOCATION

The EX350i 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 cir-

culation 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.

BLACK

GREEN

RED

WHITE or BROWN

CAUTION

• DO NOT MOUNT OVER COMBUSTIBLE SURFACES.

Where there is a combustible surface directly

under stationary or fixed electrical equipment,

that surface shall 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.

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

STACKING

EX350i cannot

be stacked.

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.

Single Phase Input

Connect green lead to ground per National Electrical

Code.

Connect black and white or brown leads to power.

Wrap red lead with tape to provide 600V insulation.

Three Phase Input

Connect green lead to ground per National Electric

Code.

Connect black, red and white leads to power.

CONNECTIONS OF WIRE FEEDERS TO EX350I

LN-25 Connection Instructions

-Not recommended for Pulse Welding with the

Advanced Process Kit ).

• Turn the EX350i 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 EX350i. The 14 pin (K444-2) remote can be con-

nected directly to the 14 pin amphenol. The 42 Volt

Remote Voltage and Output Control (K624-1) Kit can

be connected to the EX350i 24/42 VAC amphenol

using Remote Control Cable assembly K627- [ ]. LN-

25s with a K431-1 remote kit can be connected to

the 24/42 VAC amphenol using a K432 cable and a

K876 adapter. (See connection diagram S19899) to

connect it to one of the 14-pin amphenols. Or the

K432 cable could be modified with a K867 Universal

Adapter Plug (See connection diagram S19405) to

connect it to the 24/42 VAC 14-pin amphenol.

INPUT AND GROUNDING CONNECTIONS

• Only a qualified electrician should connect the

EX350i. 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

460VAC. If 460VAC is the desired input, then the

machine may be connected to the power system

without any setup required inside the machine.

• Initial 200VAC - 415VAC and 575VAC operation will

require an Input voltage panel setup.

EX350i

A-3

LN-7 Connection Instructions

INSTALLATION

Cobramatic Connection Instructions

A-3

• Turn the EX350i power switch “off”.

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

the EX350i 115 VAC control cable

control cable connector is located at the front of the

EX350i.

• Connect the electrode cable to the output terminal

of polarity required by electrode. Connect the work

lead to the other terminal

• Set the meter polarity switch on the front of the

EX350i to coincide with wire feeder polarity used.

The wire feeder will now display the welding volt-

age.

• If K480 is not available, see connection diagram

S19404 for modification of K291 or K404 LN-7 input

cable with K867 universal adapter plug.

LN-10 Connection Instructions

• Turn the EX350i power switch "off"

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

EX350i 24/42VAC 14-pin amphenol connector on the

front of the EX350i.

• 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 EX350i 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 EX350ipower switch "off"

• Either a K591 or a K593 Input cable assembly is

required to connect the LN-742 to the EX350i.

• Connect the control cable from the LN-742 to the

24/42 VAC 14-pin wire feeder amphenol on the

front of the

EX350i.

• 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

EX350ito coincide with wire feeder polarity used.

The wire feeder will now display the welding volt-

age.

• If a remote control is to be used with the LN-742,

use a K864 adapter to connect the feeder and a

K857 remote to the 14-pin wire feeder connector on

the front of the EX350i.

• Turn the EX350ipower switch "off"

• Connect the control cable from the Cobramatic to

the 24/42 VAC 14-pin wire feeder amphenol on the

front of the EX350i.

• 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

EX350ito coincide with wire feeder polarity used.

• If a remote control is to be used with the

Cobramatic, or use a K864 adapter to connect the

cobramatic and a K857 remote to the 24/42VAC

14-pin wire feeder amphenol connector on the front

of the EX350i.

TIG Module K930-2

The TIG Module connects to the EX350i with a K936-

1 (9-14 pin) control cable. Connect the K936-1 to the

115VAC wire feeder amphenol on the front of the

EX350i.

General Instructions for Connection of Wire

Feeders to EX350i

Wire feeders other than LN-7 and LN-25 may be used

provided that the auxiliary power supply capacity of

the EX350i is not exceeded. K867 universal adapter

plug is 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 CANNOT PROTRUDE MORE THAN 0.5 INCHES INSIDE THE MACHINE.

MOUNTING HOLE LOCATIONS

3.50

1/4-20 NUT (4 PLACES)

5.50

10.00

11.84

EX350i

A-4

PARALLEL OPERATION

INSTALLATION

A-4

The EX350i 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 require-

ments 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 main-

tain the desired voltage or current. The arc control

pots should be kept identical on the two machines.

EX350i

B-1

SAFETY PRECAUTIONS

OPERATION

WARNING

B-1

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 danger-

ous.

• 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.

• 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" 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

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.

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 hand

Amptrol results in the preset level of current.

4. WELD TERMINALS-REMOTE / ON

• Two status lights indicate the location of trigger con-

trol as determined by the "WELD TERMINALS"

push button.

• If trigger control is local "weld terminals on", the 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

CV = REMOTE

TIG = REMOTE if remote output controls are

attached to the machine.

TIG = 0N if remote output controls are not attached to

the machine.

For all versions, these trigger modes can be over-ridden

(switched) with the WELD TERMINALS push button. When

changed, the unit will power up in the configuration it was in

when it was last powered down.

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

See additional warning information at

front of this operatorʼs manual.

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

GENERAL DESCRIPTION

The EX350i offers multi-process CV, CC, and DC

welding and is rated 350 amps, 34 volts at a 60% duty

cycle.

DUTY CYCLE

The EX350i is rated at 350 amps, 60% duty cycle

(based on a 10 minute cycle). It is also rated at 300

amps, 100% duty cycle.

OPERATIONAL FEATURES and CONTROLS:

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 dash-

es indicating non-presettable AMPS.

• During welding, this meter displays actual average

amps.

EX350i

B-2

OPERATION

B-2

• 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 out-

put 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 tempera-

ture to establish output.

L-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 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.

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 min-

imum (0), with no additional current added at arc

start, to maximum (10), with double the preset cur-

rent 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.

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 recom-

mended setting for Hot Start is 5 where the initial

current is equal to the preset current.

• 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

7. WELD MODE SELECT -

The Mode Control button selects from the following

welding modes.

FIGURE 1

CONTROL

MPS

OLTS

WELD TERMINALS

OUTPUT

SELECT

EX350i

B-3

OPERATION

B-3

TIG GTAW:The TIG mode features continuous con-

trol from 5 to 425 amps. The TIG mode can be run in

either the TIG touch start or high frequency (optional

equipment required) 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 main-

tained at 25 amps independent of the preset cur-

rent.

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

frequency 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.

TIG SOLENOID OPTION

The Solenoid only operates when th V350 is in the

TIG mode. If the Weld Terminals are in “Remote” then

the solenoid will open when the arc start switch is

closed. The solenoid will close after the arc switch has

been opened and the post flow time expired.

If the Weld Terminals are turned “ON”, then the sole-

noid will open when the electrode is touch to the work.

The electrode needs to remain in contact with the

work to allow for gas coverage before attempting to

start the arc. The solenoid will close after the arc has

been broken and the post flow time expired.

CV-WIRE:The CV-WIRE mode features continuous

control from 10 to 40 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 mini-

mum setting (-10), minimizes pinch and results in a

soft arc. Low pinch settings are preferable for weld-

ing 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 CO

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 mini-

mum 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 self-

shielded wires work well at an Arc Control setting of 5.

EX350i

B-4

7A. ADVANCED PROCESS PANEL

(See Figure 2)

OPERATION

B-4

To program Welding modes. Select knob is used to

Scroll through all Welding modes. The Memory button

is used to store and access Welding modes into loca-

tions M1 thru M8.

Modes:

In addition to the 5 welding modes described in SEC-

TION 7, the Advance Process Panel allows you to

select the Following additional modes.

• Constant Power mode

In the Power Mode;

The work point will be in the Volts window. The

Amp window will have CPdisplayed indicating

Constant Power. Once current starts flowing and

during the 5 second “Hold” feature the displays will

show Volts and Amps respectively.

• Gouge

AirCarbon Arc Cutting (CAC-A) is a physical means

of removing base metal or weld metal by using a

carbon electrode, an electric arc and compressed

air.

•Pulsed Modes

In Pulse Modes;

The work point will be in the Amps window and

should be set close to the wire feed speed of the

wire feeder in inches per minute. The Volts window

will have SPddisplayed indicating Wire Feed

Speed. Once current starts flowing and during the 5

second “Hold” feature the displays will show amps

and volts.

Pulse Mode features that are displayed while

selecting 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

FIGURE 2

OUTPUT KNOB

MPS

OLTS

CONTROL

REMOTE

LOCAL

WELD TERMINALS

REMOTE

OUTPUT

SELECTSELECT

MEMORY

SELECT

ADJUST

MEMORY BUTTON

(M1 THRU M8)

ADJUST KNOB

(0 THRU 10-HOT START)

(-10 THRU 0 AND

0 THRU +10-ARC CONTROL)

SELECT BUTTON

(HOT START OR ARC CONTROL)

SELECT KNOB

(SCOLLS WELDING PROCESSES)

ADVANCE PROCESS PANEL VERSION

EX350i

B-5

CONTROLS:

(See Figure 2)

OPERATION

B-5

The MEMORY buttonand SELECT knobare used

together to select a welding process and store it in

memory (M1 thru M8). The SELECT knobscrolls

through the, welding process modes and memory M1

thru M8. The MEMORY buttonstores the welding

process in memory.

• SELECTbutton" (The right button) selects between

the "Hot Start" or "Arc Control". The < will indicate

the active feature shown below.

Right Digital Window

"Hot Start" (-10 to 0 +10)

"Arc Control" (0 to 10) <

• The ADJUST knobadjusts the desired settings for

the Hot Start or Arc Control feature that is active.

WELDING PROCESS MODES AVAILABLE

Stick SMAW, TIG GTAW

Gouge CAG, CV MIG GMAW

CV Flux Core, Pulse MIG

ELECTRODE MATERIAL

Steel, Metal Core, Stainless, Aluminum, Nickel

EXAMPLE OF SAVING WELDING MODES TO

MEMORY

The following example is how to select Pulse MIG

using .035 steel and store it into memory.

1. Turn the Select knobuntil welding process is dis-

played.

RIGHT WINDOW LEFT WINDOW

Pulse MIG Argon Blends

Steel .035

2. Wait two seconds and the right window will display

Arc Control on the second line on the right side.

Pulse MIG Argon Blends

Steel .035Arc Cntrl ### <

3. SPdis displayed in the upper right Voltswindow.

The left Ampswindow matches the desired wire

feed speed that is set on the wire feeder. Adjust the

Output knobuntil desired number is displayed.

4. Start welding. If the arc length is too short turn the

Output knobup. If the arc length is too long turn

the Output knobdown.

5. After all adjustments have been made press and

hold the Memory buttonuntil the display changes.

The right and the left window will display a memory

position, lets say M1(or turn knob to select memory

of your choice. To store in M1 push the Memory

button again to save the Pulse Mig mode to memo-

ry M1.

6. The display in the digital windows read as follows:

M1 Pulse MIG Argon Blends

Steel .035Arc Cntrl 1.2

7. To save a second welding mode to a memory posi-

tion of your choice, turn the Select knobuntil the

desired welding process mode is displayed in right

digital window. Then follow steps 1 thru 6.

8. Adjust the output control to the correct wire feed

setting and the EX350i is ready to weld again.

(Note: The wire feed speed setting is not stored in

memory and will need to be reset.)

9. Adjust the Arc Control and note that the M1 goes

away indicating that the EX350i settings no longer

match what is stored in memory. Going back to the

original settings will not bring the M1 back. You will

need to push the Memory buttonto recall the origi-

nal settings in M1.

Note: After all memoryʼs M1 thru M8 are used and the

welder needs to store another welding process, a new

welding process will overwrite what was originally in

the memory and will read,

Save to MEM

M1 Overwrite

M1 which stored Pulse Mig is Overwritten with the

new welding process.

The Arc Control which is displayed in the right digital

window can be used to fine-tune the arc length and

characteristics.

EX350i

B-6

WELD MODE DETAILS:

Mode

Stick Soft

Range

5 - 425 amps

OPERATION

Comments

B-6

The stick soft mode is the best selection for general stick

applications.

Arc Control = Arc Force

Hot Start = Initial hot start current (min = start a match set amps, Max. =

greatest hot start current) During hot start, arc force is set at

high and is fast response.

For gouging applications: Turn current up to 425 amps.

The stick crisp mode features an aggressive arc force routine well suit-

ed for Exx10, Exx11 series electrodes.

Arc Control = Arc Force

Hot Start = Initial hot start current (Mid range = welding current and will

vary up and down with knob control.) During hot start, arc

force is set at high and is fast response.

For gouging applications: Turn current up to 425 amps.

The tig mode produces a soft, steady constant current waveform for

either touch start or high frequency assisted start DC GTAW applica-

tions.

Hot Start = Min to Mid range = Touch start with low OCV

Mid to Max range = High frequency assisted starting with adjustable

OCV up to 70 volts.

The GMAW - CV mode is the best selection for general MIG welding,

Metal core, and gas shielded applications.

Arc Control = Pinch (Min = min pinch, softest arc),

(Max = max pinch, crispest arc)

The FCAW-SS mode is designed for Self Shielded Innershield products

that require tight voltage control. For example; the NR 203 series or NR

207)

Arc Control = Pinch (Min = min pinch, softest arc),

(Max = max pinch, crispest arc, )

Stick Crisp5 - 425 amps

GTAW (Tig mode)5 - 425 amps

GMAW - CV10 - 45 volts

FCAW-SS10 - 45 volts

ADVANCED PULSE PANEL WELDING PROGRAMS

Gouging60 - 425 ampsThe gouging mode is a low power version of other Lincoln welding

equipment gouging programs, for example a Power Wave 455.

1 - 18 (No Units) The GMAW - Power mode features good stable short arc performance

when welding small diameter (.025 and .030 steel & stainless) wires at

low procedures. This mode also performs well welding aluminum in the

spray mode.

This mode does not allow preset voltage. In the short arc GMAW mode,

the set KW will not equal the actual Volts * Amps. The set power is reg-

ulated only when an arc is present. During shorting, the output is

allowed to increase to clear the short.

GMAW - Power

EX350i

B-7

MODE

.030 Steel

.035 Steel

.045 Steel

.052 Steel

.045 Metal Core

.052 Metal Core

.030 Stainless Ar Blends

.030 Stainless He Ar CO2

.035 Stainless Ar Blends

.035 Stainless He Ar CO2

.045 Stainless Ar Blends

.045 Stainless He Ar CO2

.035 Aluminum 4043

.035 Aluminum 5356

3/64 Aluminum 4043

3/64 Aluminum 5356

1/16 Aluminum 4043

1/16 Aluminum 5356

IMP*

65 - 1200

55 - 800

50 - 700

75 - 550

50 - 650

50 - 500

85 - 770

110 - 770

65 - 770

75 - 770

50 - 600

100 - 700

115 - 740

80 - 550

85 - 700

75 - 325

75 - 450

OPERATION

PULSE PROGRAMS:

B-7

COMMENTS

The EX350i pulse programs are non-synergic and allow indepen-

dent control of the wire feed speed and the arc length. The Output

Control Knob on the EX350i, adjusts an "SPD" value. Similar to

trim, the "SPD" value indicates the relative arc length setting. The

value of "SPD" is meant to be a starting point at which to set the

arc length relative to the wire feed speed. Depending on the appli-

cation, the "SPD" value can be adjusted to obtain the desired arc

length.

The "SPD" value displayed on the EX350i may not match the

actual wire feed speed!

The operation of the Arc Control knob on the EX350i is similar to

the Power Wave series. As Arc Control is increased, the frequency

is increased and the background reduced. Decreasing Arc Control

will reduce frequency and increase background current. Arc

Control acts to fine tune the arc plasma to the specific application.

Preferred gas selections:

Steel Argon Blends = Argon with CO2 additions from 2 to 20

% or Oxygen additions from 2 to 5%.

Stainless Argon Blends = Argon with Oxygen additions up to 2%.

Stainless Argon Blends = Argon with Oxygen additions up to 2%

Stainless He Ar CO2 = ~ 90% Helium, 7 1/2 % Argon 2 1/2

CO2

Aluminum 100% Argon

The Nickel Alloy pulse programs are non adaptive. The operator

sets the output control knob to deliver the correct arc length at

desired wire feed speed and stick out. While welding, the operator

manipulates the stick out to maintain the correct arc length. This

method of operation produces very stable arc performance consid-

ering the nature of nickel alloys.

Preferred gas: Argon/Helium Blends = for the best results add

helium to the argon base from 0-25%.

.035 Nickel Alloys (Non Adaptive)

.045 Nickel Alloys (Non Adaptive)

80 - 700

75 - 550

PULSE ON PULSE

.035 4043 (4x Pulse on Pulse)

3/64 4043 (4x Pulse on Pulse)

.035 5356 (5x Pulse on Pulse)

3/64 5356 (5x Pulse on Pulse)

120 - 600

85 - 400

130 - 700

100 - 550

Arc Control = Pulse on Pulse frequency. For faster travel

speed welds, the arc control should be increased.

For larger puddle, slower travel speeds, the arc control

should be decreased.

*IPM (INCHES PER MINUTE)

EX350i

B-8

OPERATION

B-8

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

The LN-10 and DH-10 feeders can be used to pulse

weld and in the power mode with the panel. The dis-

plays on the LN-10 & DH-10 do not show the wire

feed speed or power.

8. HOT START and ARC CONTROLfeatures have

different functions depending on the welding Mode

that is active. Each feature is described under the

welding mode heading. (See Item 7 or 7.A for speci-

fied Mode Operations) (See Figure 1 or 2)

LOWER CASE PANEL (See Figure 1)

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.

ON-OFF switch is a 3-phase circuit breaker

rated at 100 amps per leg.

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 indi-

cated by the decal. The switch does not change

the welding polarity.

12. 3-PIN AMPENOLfor remote control.

REMOTE CONTROL of the OUTPUT CONTROL and

WELD TERMINALS

The EX350i has auto sensing of remote output con-

after connecting or removing a remote, the

EX350i is not configured the way you would like the

local or remote control settings can be changed by

pushing the OUTPUT CONTROL or WELD TERMI-

NAL button. (A user cannot select between the 3 and

14 pin amphenols.)

CVmodes

• The remote will default to the 14-pin amphenol

remote if a remote is connected to either of the 14-

pin amphenols and the 3-pin amphenol. Note: Only

one of the 14-pin amphenols can have a remote

control connected at a time. If no remote is connect-

ed to either of the 14-pin amphenols then the

remote will default to the 3-pin amphenol if a remote

is connected to it.

• If a remote control is connectedor is not connect-

ed to any of the amphenols the WELD TERMINAL

control will default to REMOTE.

TIGmode

• The remote will default to the 3-pin amphenol if a

remote control is connected to the 3-pin amphenol

and one of the 14-pin amphenols. If a remote is not

connected to the 3-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 con-

trol will default to ON.

CC-Stick modes

• The remote will default to only the 3-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 EX350iʼs 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.

• 3-pin Amphenol lead 75 is pin A, lead 76 is pin B

and lead 77 is pin C.

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 machineʼs 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 pro-

duce the current that has been set by the EX350iʼs

front panel Output Control.)

Voltage Control

• The supply should be an isolated supply. (Not refer-

enced to earth ground, any auxiliary power from the

EX350i or the welding output) The supply should be

capable of supplying at least 20mA.

• 0 volts supplied to 76 will set the EX350i to mini-

mum output for the mode that has been selected

while 10 volts supplied to 76 will set the EX350i 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 EX350iʼs front

panel Output Control.)

Types of Remote WELD TERMINAL Control

• The EX350iʼs Weld Terminals can be controlled

from each of the 14 pin 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 EX350i.

• 14 Pin Amphenols the Weld Terminals are controlled

from pins C (lead 2) and pin D (lead 4). Pin C is posi-

tive.

EX350i

B-9

OPERATION

B-9

AUXILIARY POWER

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

from the two 14-pin amphenols on the rear of the

unit. 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 10 amp breaker located by the amphenol.

• 24 VAC supply is rated at 5.5 amps and is protected

by a 10 amp breaker located by the amphenol.

LIMITATIONS

• The EX350i is not recommended for processes

other than those listed.

• The EX350i can only be used with the recommend-

ed equipment and options.

RECOMMENDED PROCESSES

Properly equipped, the EX350i supports GMAW,

FCAW, SMAW, GMAW-P, GTAW and CAC-A

processes for a variety of materials, including mild

steel, stainless steel, cored wires, and aluminum.

EX350i

C-1

• K2176-1

• K1764-1

• K1557

• K1702-1

• K1838-2

ACCESSORIES

OPTIONS / ACCESSORIES

Twist-Mate to Lug Adapter

Inverter and Feeder Cart

Swivel Kit

Dual Cylinder Kit (For K1764-1)

Valet Style Undercarriage

C-1

QUICK DISCONNECT PLUGS

A quick disconnect system is used for the welding

cable connections. The K852-70 is designed to

accept a welding cable size of 1/0 to 2/0.

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

Welding Cable Connectors:

• K852-70 1/0-2/0 cable

• K852-95 2/0-3/0 cable

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.

BOOT

WELDING CABLE

•K857Remote Output Control 25ft.

• K814 Arc Start Switch

• K963-[ ]Hand Operated Amptrol

• K870Foot Operated Amptrol

Note: All of the above remote controls have a 6-pin

MS-style connector, a K864 or K876 adapter is need-

ed to connect them to the 14 pin wire feeder MS-style

connector. (See Diagram in Section F-1)

K930-2 TIG Module

K428 LN-25 Wire Feeder with meters*

K449LN-25 Wire Feeder *

K617-1 LN-742 Wire Feeder W/2 Roll Drive

K618-1LN-742 Wire Feeder W/4 Roll Drive

K440-2LN-7

GMA Wire Feeder

K567-2LN-7 GMA Wire Feeder W/4 Roll Drive

K1559-1LN-10 Bench Model (CV)

K1564-1LN-10 Generic 16ft. Boom Package

K1499-1DH-10 Bench Model

K1521-1DH-10 Generic 16ft. Boom Package

K1853-1Cobramatic

*Not recommended for pulse welding

25 mm

1 in.

TRIM

the copper tube into the brass plug.

cable into copper tube.

ET CREW

BRA

COER TBE

n 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.

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.

FIELD INSTALLED OPTION

• K1762-2

• K1763-1

TIG Gas Control Kit

Advanced Process Panel

EX350i

D-1

MAINTENANCE

VISUAL INSPECTION

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.

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

Clean interior of machine with a low pressure air

stream. Make a thorough inspection of all compo-

nents. Look for signs of overheating, broken leads or

other obvious problems. Many problems can be

uncovered with a good visual inspection.

ROUTINE MAINTENANCE

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

• Fan (Blow air through the rear louvers)

e the sheet metal case for dents or breakage.

Repair the case as required. Keep the case in good con-

dition to insure that high voltage parts are protected and

correct spacings are maintained. All external sheet

metal screws must be in place to insure case strength

and electrical ground continuity.

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 Operatorʼs Manual

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

CAPACITOR DISCHARGE PROCEDURE

a power resistor (25 ohms, 25 watts).

resistor body with electrically insulated glove.

DO NOT TOUCH TERMINALS.

Connect the resis-

tor terminals across the two studs in the position

shown. Hold in each position for 1 second. Repeat

for all four capacitors.

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

PERIODIC MAINTENANCE

REITOR

CAACITOR

TERMINAL

a DC voltmeter to check that voltage is not

present across the terminals on all four capacitors.

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.

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.

EX350i

E-1

TROUBLESHOOTING

HOW TO USE TROUBLESHOOTING GUIDE

E-1

WARNING

Service and Repair should only be performed by 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.

__________________________________________________________________________

This Troubleshooting Guide is provided to help you

locate and repair possible machine malfunctions.

Simply follow the three-step procedure listed below.

Step PROBLEM (SYMPTOM).

Look under the column labeled “PROBLEM (SYMP-

TOMS)”. This column describes possible symptoms

that the machine may exhibit. Find the listing that

best describes the symptom that the machine is

exhibiting.

Step LE CAUSE.

The second column labeled “POSSIBLE CAUSE” lists

the obvious external possibilities that may contribute

to the machine symptom.

Step ENDED COURSE OF ACTION

This column provides a course of action for the

Possible Cause, generally it states to contact your

local Authorized Field Service Facility.

If you do not understand or are unable to perform the

Recommended Course of Action safely, contact your

local 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 Authorized Field Service Facilityfor technical troubleshooting assistance before you proceed.

EX350i

E-2

PROBLEMS

(SYMPTOMS)

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-2

RECOMMENDED

COURSE OF ACTION

POSSIBLE

CAUSE

Major physical or electrical damage

1. Contact your local authorized

is evident when the sheet metal

Lincoln Electric Field Service facil-

ity for technical assistance.

covers are removed.

Input fuses keep blowing, or input

1. Make certain that the fuses or

breakers are properly sized. See

breaker keeps tripping

installation section of the manual

for recommended fuse and break-

er 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 autho-

rized Lincoln Electric Service facil-

ity.

1. Make certain that the power

Machine will not power up (No

switch is in the "ON" position.

2. The circuit breaker in the recon-

all recommended possible areas

lights)

nect area may have opened.

of misadjustment have been

Reset. Check input voltage sec-

checked and the problem persists,

tion below.

Contact your local Authorized

3. Input voltage selection made

Field Service Facility.

improperly. Power down, check

input voltage reconnect according

to diagram on reconnect cover.

4. The 6 amp breaker may have

opened. Check for overload on

42VAC or 24VAC supply from the

14 pin MS-style connector.

1. If the displays show an Err ###

Machine wonʼt weld, canʼt get any

see the fault section for corrective

action.

output.

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 Authorized Field Service Facilityfor technical troubleshooting assistance before you proceed.

EX350i

E-3

PROBLEMS

(SYMPTOMS)

Thermal symbol is lit

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-3

RECOMMENDED

COURSE OF ACTION

POSSIBLE

CAUSE

1. Check for proper fan operation. If

fan is not operating correctly the

CB 2 amp breaker may have

opened. Check for an overload on

the 115VAC. Blow air in rear lou-

vers to remove dirt from around

fan.

2. Check for material blocking intake

or exhaust louvers.

3. Blow air in the rear louvers to

clear dirt from the fan.

Wire feeder wonʼt work. Apparently1. Check circuit breakers by the wire

no power to wire feederfeeder receptacles on the rear of

the machine. Reset

2. Check the control cable between

the power source and the wire

all recommended possible areas

feeder for continuity.

of misadjustment have been

checked and the problem persists,

Contact your local 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 Authorized Field Service Facilityfor technical troubleshooting assistance before you proceed.

EX350i

E-4

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-4

Fault Codes

Code Description

31Primary over current.

Corrective Action

The machine needs to

be turned off and back

on to reset the machine.

Self-clearing as

condition ceases.

If condition persists

contact an authorized

Field Service Shop

Check input power

reconnect to make sure

the machine

is connected for the input

power being supplied.

Check the machine

ground.

If problem persists

contact an authorized

Field Service Shop

Check input power

reconnect to make sure

the machine is

connected for the input

power being supplied.

Check the machine

ground.

If problem persists

contact an authorized

Field Service Shop

CAP bank A under voltage.

CAP bank B under voltage.

CAP bank A over voltage.

CAP bank B over voltage.

Soft start Failed.

Glitch on the primary over

current fault interrupt; possibly

caused by noise or a signal level

(misc. hardware fault #1)

Cycle power.

Self-clearing as

condition ceases.

43CAP delta; CAP A and B are out

of balance.

Main CPU problem. The DSP

has detected a problem with the

CPU.

Possible erroneous electrical

noise on Voltage/Frequence

capacitor feed back circuit.

(misc. hardware fault #2)

The main contactor opened

unexpectedly. (misc. hardware

fault #3)

48If condition persist

contact an authorized

Field Service Shop

If condition persists

contact an authorized

Field Service Shop

Self-clearing

"bad The selected weld mode does

nodeʼnot exist in the weld table that is

“####”presently loaded in the machine.

Press the Mode

Select button to

selecta different

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 Authorized Field Service Facilityfor technical troubleshooting assistance before you proceed.

EX350i

E-5

Displays

Scrolling dash

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-5

Description

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

ration

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 work point.

A constant current weld mode is selected, machine output is off.

The numeric value in the left display is either the work point or a

work point limit, depending on the weld mode and remote configura-

tion.

"Err" "####"

"----" "----"

"----" "####"

"####" "----"

"####" "####"(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 work point.

"####" "####" (blinking)weld just finished – the average arc voltage and current will be

blinked for 5 seconds following a weld. If the work point changes

during 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 Authorized Field Service Facilityfor technical troubleshooting assistance before you proceed.

EX350i

F-1

(

)

(

)

DIAGRAMS

EX350i

(

)

(

)

(

)

F-1

F-2

777

DIAGRAMS

EX350i

F-2

F-3

DIAGRAMS

EX350i

(

)

F-3

F-4

DIAGRAMS

EX350i

(

)

F-4

F-5

DIAGRAMS

EX350i

F-5

F-6

DIAGRAMS

EX350i

F-6

F-7

DIAGRAMS

EX350i

F-7

F-8

DIAGRAMS

EX350i

F-8

F-9

DIMENSION PRINT

EX350i

(

)

F-9

NOTES

EX350I

WARNING

Spanish

●

Do not touch electrically live parts or

●

Insulate yourself from work and

electrode with skin or wet clothing.

ground.

●

Keep flammable materials away.

●

Wear eye, ear and body protection.

AVISO DE

PRECAUCION

ATTENTION

●

No toque las partes o los electrodos

bajo carga con la piel o ropa moja-

da.

●

Aislese del trabajo y de la tierra.

●

Ne laissez ni la peau ni des vête-

●

Mantenga el material combustible

fuera del área de trabajo.

●

Protéjase los ojos, los oídos y el

cuerpo.

French

ments mouillés entrer en contact

avec des pièces sous tension.

●

Isolez-vous du travail et de la terre.

●

Berühren Sie keine stromführenden

●

Gardez à l’écart de tout matériel

inflammable.

●

Protégez vos yeux, vos oreilles et

votre corps.

German

WARNUNG

Portuguese

Teile oder Elektroden mit Ihrem

Körper oder feuchter Kleidung!

●

Isolieren Sie sich von den

Elektroden und dem Erdboden!

●

Entfernen Sie brennbarres Material!

●

Tragen Sie Augen-, Ohren- und Kör-

perschutz!

ATENÇÃO

Japanese

●

Não toque partes elétricas e elec-

trodos com a pele ou roupa molha-

da.

●

Isole-se da peça e terra.

●

Mantenha inflamáveis bem guarda-

dos.

●

Use proteção para a vista, ouvido e

corpo.

Chinese

Korean

Arabic

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 HER-

STELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.

●

Keep your head out of fumes.

●

Use ventilation or exhaust to

●

Turn power off before servicing.

●

Do not operate with panel open or

guards off.

remove fumes from breathing zone.

●

Desconectar el cable de ali-

●

No operar con panel abierto o

WARNING

Spanish

●

Los humos fuera de la zona de res-

piración.

●

Mantenga la cabeza fuera de los

humos. Utilice ventilación o

aspiración para gases.

mentación de poder de la máquina

antes de iniciar cualquier servicio.

guardas quitadas.

AVISO DE

PRECAUCION

ATTENTION

●

Gardez la tête à l’écart des fumées.

●

Utilisez un ventilateur ou un aspira-

●

Débranchez le courant avant

l’entretien.

●

N’opérez pas avec les panneaux

French

teur pour ôter les fumées des zones

de travail.

ouverts ou avec les dispositifs de

protection enlevés.

●

Vermeiden Sie das Einatmen von

●

Sorgen Sie für gute Be- und

Schweibrauch!

●

Strom vor Wartungsarbeiten

abschalten! (Netzstrom völlig öff-

nen; Maschine anhalten!)

●

Anlage nie ohne Schutzgehäuse

German

oder Innenschutzverkleidung in

Betrieb setzen!

Entlüftung des Arbeitsplatzes!

●

Não opere com as tampas removidas.

●

Desligue a corrente antes de fazer

●

Mantenha-se afastado das partes

●

Não opere com os paineis abertos

WARNUNG

Portuguese

●

Mantenha seu rosto da fumaça.

●

Use ventilação e exhaustão para

remover fumo da zona respiratória.

serviço.

●

Não toque as partes elétricas nuas.

moventes.

ou guardas removidas.

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.

• World's Leader in Welding and Cutting Products •

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