Lincoln Electric IM678 User Manual
IM678-A
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RED-D-ARC
EX350i
For use with machines having Code Numbers:
March, 2002
10666; 10749
OPERATOR’S MANUAL
Red-D-Arc Spec-Built Welding Equipment
This RED-D-ARC welder 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 America’s Largest Fleet of Welding Equipment
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
EX350i
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
EX350i
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.
EX350i
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 suivantes:
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’opérations 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 protéger
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
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 branché à 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 sûreté à leur
place.
EX350i
Mar. ‘93
for selecting a QUALITY product. We want you to take pride in
Thank You
operating this 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.
vv
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.
vi
TABLE OF CONTENTS
Page
Installation .......................................................................................................Section A
Technical Specifications ........................................................................................A-1
Installation Instructions. .........................................................................................A-2
Select Suitable Location..................................................................................A-2
Stacking ..........................................................................................................A-2
Tilting...............................................................................................................A-2
Safety Precautions ..........................................................................................A-2
Input and Grounding Connections ..................................................................A-2
Power Cord Connection ..................................................................................A-2
Connection of Wire Feeders to EX350i...........................................................A-2
Remote Control of EX350i ..............................................................................A-3
Undercarriage Mountings................................................................................A-3
Parallel Operations..........................................................................................A-4
Quick 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
________________________________________________________________________
vi
Accessories.....................................................................................................Section C
Options / Accessories............................................................................................C-1
Field Installed Options/Accessories.......................................................................C-1
Maintenance ....................................................................................................Section D
Safety Precautions ................................................................................................D-1
APACITOR DISCHARGE PROCEDURE..........................................................................D-1
C
VISUAL INSPECTION...................................................................................................D-1
OUTINE MAINTENANCE ............................................................................................D-1
R
P
ERIODIC 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 ......................................................................................................P371 Series
A-1
INSTALLATION
A-1
TECHNICAL SPECIFICATIONS -
EX350i
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
(continuous)
200 Factory
208-230/ 350A / 34V / 60% 82.5lbs
380-400/ AMPS (37.4 kg) 14.7”x12.5”x27.8”*
EX350i K1757-1 415-460/ 5-425 Construction
575 81.5lbs (373x318x706*)mm
1 & 3 Phase
60/50 Hz
* Overall Length Including Handle, 27.8” (706mm).
275A / 31V / 100% (36.9 kg)
EX350i INPUT CURRENT
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 1 Not Not --- --- Note 1
Recommended Recommended
208 1 70 94 2 125A Note 2
230 1 62 85 4 125A Note 2
380 1 Not Not --- --- Note 1
Recommended Recommended
400 1 Not Not --- --- Note 1
Recommended Recommended
415 1 38 54 6 80A Note 2
460 1 34 42 8 70A
575 1 27 37 8 50A
200 3 37 50 8 80A Note 2
208 3 36 50 6 80A Note 2
230 3 31 42 8 70A
380 3 21 28 8 50A
400 3 20 27 8 50A
415 3 19 26 8 50A
460 3 17 23 8 50A
575 3 14 18 8 35A
Note 1. Not rated is indicated by 4-x's 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) 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
EX350i
A-2
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t
GREEN
RED
BLACK
WHITE
INSTALLATION
INSTALLATION
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 lead of the power cord to
ground per U.S. National Electrical Code.
--------------------------------------------------------------------
Select Suitable Location
The Invertec 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 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
be stacked.
EX350i 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
EX350i. Installation should be made in accordance
with the U.S. 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.
• 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. (7.6m) power cord is provided and wired into
the machine. Follow the power cord connection
instructions. Incorrect connection may result in equipment damage.
A-2
INGLE
S
S
INGLE
• Connect green lead to ground per U.S. National Electrical
Code.
• Connect black and white leads to power.
• Wrap red lead with tape to provide 600V insulation.
THREE PHASE INPUT
• Connect green lead to ground per U.S. National
• Connect black, red and white leads to power. Install
CONNECTIONS OF WIRE FEEDERS TO EX350i
LN-25 Connection Instructions
1. Turn the EX350i power switch "off".
2. Connect the electrode cable to the output terminal
3. LN-25 with Remote Control options can be used
LN-7 Connection Instructions
1. Turn the EX350i power switch “off”.
2. Connect the K480 control cable from the LN-7 to
3. Connect the electrode cable to the output terminal
4. Set the meter polarity switch on the front of the
5. If K480 is not available, see connection diagram
EX350i
HASE
HASE
NPUT
I
I
NPUT
P
P
Electric Code.
in accordance with all local and national electric
codes.
of polarity required by electrode. Connect the work
lead to the other terminal.
with the EX350i. The 14 pin (K444-2) remote can
be connected 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.
the EX350i 115 VAC control cable connector.The
control cable connector is located at the rear of the
EX350i.
of polarity required by electrode. Connect the work
lead to the other terminal
EX350i to coincide with wire feeder polarity used.
The wire feeder will now display the welding voltage.
S19404 for modification of K291 or K404 LN-7 input
cable with K867 universal adapter plug.
A-3
INSTALLATION
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
rear 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
A-3
TIG Module K930-2
The TIG Module connects to the EX350i with a K9361 (9-14 pin) control cable. Connect the K936-1 to the
115VAC Wire Feeder Amphenol on the rear 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.
LN-742 Connection Instructions
• Turn the
EX350i
power 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 rear
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
EX350i
to coincide with wire feeder polarity used.
The wire feeder will now display the welding voltage.
• If a remote control is to be used with the LN-742,
the remote can be connected directly to the 3 pin
amphenol on the front of the
EX350i
or use a K864
adapter to connect the LN-742 and a K857 remote
to the 24/42VAC 14-pin wire feeder amphenol con-
EX350i
nector on the rear of the
.
Cobramatic Connection Instructions
• Turn the
EX350i
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
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
EX350i
to coincide with wire feeder polarity used.
• If a remote control is to be used with the
Cobramatic, the remote can be connected directly
to the 3 pin amphenol on the front of the EX350i 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 rear of the EX350i.
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
EX350i
A-4
25 mm
1 in.
WELDING CABLE
BOOT
TRIM
SET SCREW
BRASS PLUG
COPPER TUBE
INSTALLATION
PARALLEL OPERATION
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 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
• Remote 25mm (1 in.) of welding cable insulation.
• 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.
• Slide the copper tube into the brass plug.
• Insert cable into copper tube.
• 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.
• 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.
EX350i
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