Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However,
your overall safety can be
increased by proper installation
... and thoughtful operation on
your part. DO NOT INSTALL,
OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT READING THIS MANUAL AND THE
SAFETY PRECAUTIONS CONTAINED THROUGHOUT. And,
most importantly, think before
you act and be careful.
• World's Leader in Welding and Cutting Products •
• Sales and Service through Subsidiaries and Distributors Worldwide •
i
SAFETY
i
WARNING
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel engine exhaust and some of its constituents
are known to the State of California to cause cancer, birth defects, and other reproductive harm.
The Above For Diesel Engines
ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.
KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you
purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box
351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available
from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
The Above For Gasoline Engines
FOR ENGINE
powered equipment.
1.a. Turn the engine off before troubleshooting and maintenance
work unless the maintenance work requires it to be running.
1.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.
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.
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.
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 within applicable OSHA PEL and
ACGIH TLV limits 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 specific 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
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.d. 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.
vapors
to
5.e. Read 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.
5.f. Also see item 1.b.
iii
SAFETY
iii
WELDING and CUTTING
SPARKS can
cause fire or explosion.
6.a.
Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
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.
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.
the welding sparks from starting a fire.
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 manufacturerʼs
recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturerʼs recommendations.
6.I. Read and follow 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.
6.j. Do not use a welding power source for pipe thawing.
Refer to http://www.lincolnelectric.com/safety for additional safety information.
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 LʼArc
1. Protegez-vous contre la secousse électrique:
a. Les 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.
b. Faire 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.
d.Ne 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 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 sʼapplicuent aussi au pistolet de
soudage.
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 nʼimporte quelle partie
du corps.
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 levage, 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 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.
PRÉCAUTIONS DE SÛRETÉ POUR
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-inflammables.
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.
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 dispositif
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.
Thank You
vv
for selecting a QUALITY product by Lincoln Electric. We want you
to take pride in operating this Lincoln Electric Company product
••• as much pride as we have in bringing this product to you!
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. 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 possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information 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 www.lincolnelectric.com
for any updated information.
CUSTOMER ASSISTANCE POLICY
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 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-Line Product Registration
- 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
“Product Registration”. Please complete the form and submit your registration.
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:
WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then
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.
TABLE OF CONTENTS
Page
Installation.......................................................................................................................Section A
* On 230 Volt / 1 phase inputs the max. rating is at a duty cycle of 30%, except for GTAW processes.
40%
350 Amps
31.5 Volts
RECOMMENDED INPUT WIRE AND FUSE SIZES
GMAW
60%
300 Amps / 29 Volts
320 Amps
30 Volts
300 Amps
29 Volts
100%
40%
350 Amps
24 Volts
GTAW-DC
60%
325 Amps
23 Volts
1
.95
100%
300 Amps
22 Volts
INPUT
VOLTAGE / PHASE/
FREQUENCY
200-208/1/50/60
200-208/3/50/60
230/1/50/60
230/3/50/60
380-415/1/50/60
380-415/3/50/60
460/1/50/60
460/3/50/60
575/1/50/60
575/3/50/60
1. Based on U.S. National electrical Code
2. Also called " inverse time" or "thermal / magnetic" circuit breakers; circuit breakers that have a delay in trip-
ping action that decreases as the magnitude of the current increases
3. Type SO cord or similar in 30° C ambient
4. When operating on these inputs, the line cord should be changed to an input conductor of 6 AWG or larger.
ING AND DUTY CYCLE
MAXIMUM
INPUT AMPERE RAT-
60A, 100%
39A, 40%
67A, 30%
35A, 40%
38A, 40%
19A, 40%
34A, 40%
17A, 40%
27A, 40%
14A, 40%
CORD SIZE
AWG SIZES
(mm2)
6 (13)
8 (10)
4 (16)
8 (10)
8 (10)
12 (4)
8 (10)
12 (4)
10 (6)
14 (2.5)
3
TIME DELAY FUSE
OR BREAKER
AMPERAGE
80
50
80
45
50
30
45
25
35
20
2
POWER WAVE® R350
A-2
MODEL
PROCESS
GMAW
GMAW-Pulse
FCAW
GTAW-DC
HEIGHT
INSTALLATION
WELDING PROCESS
OUTPUT RANGE (AMPERES)
40-350A
5-350A
PHYSICAL DIMENSIONS
WIDTH
OCV (Uo)
Mean Peak
40-70V
24V
DEPTH
A-2
100V
WEIGHT
K3022-1
20.40 in ( 518 mm)
14.00in ( 356 mm)
TEMPERATURE RANGES
OPERATING TEMPERATURE RANGE
Environmentally Hardened: -4°F to 104°F (-20C to 40C)
IP23 155º(F) Insulation Class
* Weight does not include input cord.
24.80in ( 630mm)
STORAGE TEMPERATURE RANGE
Environmentally Hardened: -40°F to 185°F (-40C to 85C)
85 lbs (39 kg)*
Thermal tests have been performed at ambient temperature. The duty cycle (duty factor) at 40°C has
been determined by simulation.
POWER WAVE® R350
A-3
INSTALLATION
A-3
SAFETY PRECAUTIONS Read this
entire installation section before you start installation.
WARNING
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the
disconnect switch or fuse box before working on
this equipment. Turn off the input power to any
other equipment connected to the welding system
at the disconnect switch or fuse box before working on the equipment.
The POWER WAVE® R350 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.
LIFTING
Both handles should be used when lifting POWER WAVE®
R350. When using a crane or overhead device a lifting strap
should be connected to both handles. Do not attempt to lift the
POWER WAVE® R350 with accessories attached to it.
WARNING
• Lift only with equipment of adequate lifting capacity.
• Be sure machine is stable when
lifting.
• Do not operate machine while
suspended when lifting.
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.
• 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. The use of air filters
on the air intake is not recommended because normal air flow may be restricted. 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.
• Do not mount the POWER WAVE® R350 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 .060” (1.6mm) thick,
which shall extend not less than 5.90” (150mm)
beyond the equipment on all sides.
INPUT AND GROUND CONNECTIONS
Only a qualified electrician should connect the POWER
WAVE® R350. Installation should be made in accordance with
the appropriate National Electrical Code, all local codes and
the information in this manual.
MACHINE GROUNDING
The frame of the welder must be grounded. A ground terminal
marked with a ground symbol is located next to the input
power connection block.
See your local and national electrical codes for proper grounding methods.
HIGH FREQUENCY PROTECTION
Locate the POWER WAVE® R350 away from radio controlled
machinery. The normal operation of the POWER WAVE® R350
may adversely affect the operation of RF controlled equipment,
which may result in bodily injury or damage to the equipment.
POWER WAVE® R350
A-4
CONNECTION
BLOCK
GROUND
LUG
INPUT
POWER
CORD
INSTALLATION
A-4
INPUT CONNECTION
WARNING
Only a qualified electrician should
connect the input leads to the
POWER WAVE® R350. Connections
should be made in accordance with
all local and national electrical
codes and the connection diagrams. Failure to do
so may result in bodily injury or death.
A 10 ft. (3.1m) power cord is provided and wired into
the machine. Follow the power cord connection
instructions.
For Single Phase Input
Connect green lead to ground per National Electrical
Code.
Connect black and white leads to power.
Wrap red lead with tape to provide 600V insulation.
For Three Phase Input
Connect green lead to ground per National Electric
Code.
Connect black, red and white leads to power.
INPUT FUSE AND SUPPLY WIRE
CONSIDERATIONS
Refer to Specification Section for recommended fuse,
wire sizes and type of the copper wires. Fuse the
input circuit with the recommended super lag fuse or
delay type breakers (also called "inverse time" or
"thermal/magnetic" circuit breakers). Choose input
and grounding wire size according to local or national
electrical codes. Using input wire sizes, fuses or circuit breakers smaller than recommended may result in
"nuisance" shut-offs from welder inrush currents, even
if the machine is not being used at high currents.
WARNING
The POWER WAVE® R350 ON/OFF
switch is not intended as a service
disconnect for this equipment. Only
a qualified electrician should connect the input leads to the POWER WAVE® R350.
Connections should be made in accordance with
all local and national electrical codes and the connection diagram located on the inside of the
reconnect access door of the machine. Failure to
do so may result in bodily injury or death.
Only a qualified electrician should
connect the input leads to the
POWER WAVE® R350. Connections
should be made in accordance with
all local and national electrical
codes and the connection diagrams. Failure to do so may result in bodily injury
or death.
If the input power cord is damaged or needs to be
replaced an input power connection block is located
in the back of the machine with the access panel
removed as shown Figure A.1.
ALWAYS CONNECT THE POWER WAVE GROUND-ING LUG (LOCATED AS SHOWN IN FIGURE A.1)
TO A PROPER SAFETY (EARTH) GROUND AND
ENSURE IT IS APPROXIMATELY 3" LONGER THAN
PHASE LEADS."
FIGURE A.1
INPUT VOLTAGE SELECTION
The POWER WAVE® R350 automatically adjusts to
work with different input voltages. No reconnect
switches settings are required.
POWER WAVE® R350
A-5
INSTALLATION
CONNECTION DIAGRAM
GMAW (MIG) WELDING
An arclink compatible wire feeder is recommended for
Mig welding. Refer to Figure A.2 for the connection
details.
FIGURE A.2
REGULATOR
FLOWMETER
A-5
MIG PROCESS
PF10-M
WIRE FEEDER
GAS HOSE
ARCLINK CABLE
K1543-[XX]
TO POSITIVE
(+) STUD
TO NEGATIVE (-) STUD
WORK CLAMP
WORK PIECE
POWER WAVE® R350
A-6
INSTALLATION
A-6
RECOMMENDED WORK CABLE
SIZES FOR ARC WELDING
Connect the electrode and work cables between the
appropriate output studs of the POWER WAVE R350
per the following guidelines:
• Most welding applications run with the electrode
being positive (+). For those applications, connect
the electrode cable between the wire drive feed plate
and the positive (+) output stud on the power source.
Connect a work lead from the negative (-) power
source output stud to the work piece
• When negative electrode polarity is required, such
as in some Innershield applications, reverse the output connections at the power source (electrode cable
to the negative (-) stud, and work cable to the positive (+) stud).
CAUTION
Negative electrode polarity operation WITHOUT
use of a remote work sense lead (21) requires the
Negative Electrode Polarity attribute to be set. See
the Remote Sense Lead Specification section of
this document for further details.
For additional Safety information regarding the electrode and work cable set-up, See the standard
“SAFETY INFORMATION” located in the front of this
Instruction Manual.
OUTPUT CABLE GUIDELINES (Table A.1)
General Guidelines
• Select the appropriate size cables per the
“Output Cable Guidelines” below. Excessive volt-
age drops caused by undersized welding cables and
poor connections often result in unsatisfactory welding performance. Always use the largest welding
cables (electrode and work) that are practical, and
be sure all connections are clean and tight.
Note: Excessive heat in the weld circuit indicates
undersized cables and/or bad connections.
• Route all cables directly to the work and wire
feeder, avoid excessive lengths and do not coil
excess cable. Route the electrode and work cables
in close proximity to one another to minimize the
loop area and therefore the inductance of the weld
circuit.
• Always weld in a direction away from the work
(ground) connection.
Table A.1 shows copper cable sizes recommended for
different currents and duty cycles. Lengths stipulated
are the distance from the welder to work and back to
the welder again. Cable sizes are increased for
greater lengths primarily for the purpose of minimizing
cable drop.
Percent Duty
Amperes
200
200
250
250
250
250
300
300
350
** Tabled values are for operation at ambient temperatures of 104°F (40°C) and below. Applications above 104°F (40°C) may
require cables larger than recommended, or cables rated higher than 167°F (75°C).
Cycle
60
100
30
40
60
100
60
100
40
CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK
CABLES [RUBBER COVERED COPPER - RATED 167°F (75°C)]**
0 to 50 Ft.
2
2
3
2
1
1
1
2/0
1/0
50 to 100 Ft.
2
2
3
2
1
1
1
2/0
1/0
100 to 150 Ft.
2
2
2
1
1
1
1
2/0
2/0
150 to 200 Ft.
1
1
1
1
1
1
1/0
2/0
2/0
200 to 250 Ft.
1/0
1/0
1/0
1/0
1/0
1/0
2/0
3/0
3/0
POWER WAVE® R350
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