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 •
Page 2
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.
Page 3
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.
Page 4
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.
Page 5
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.
Page 6
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.
Page 7
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
Page 9
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
Page 10
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
Page 11
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
Page 12
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
Page 13
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
Page 14
A-7
INSTALLATION
CABLE INDUCTANCE AND ITS
EFFECTS ON WELDING
Excessive cable inductance will cause the welding
performance to degrade. There are several factors
that contribute to the overall inductance of the cabling
system including cable size, and loop area. The loop
area is defined by the separation distance between
the electrode and work cables, and the overall welding
loop length. The welding loop length is defined as the
total of length of the electrode cable (A) + work cable
(B) + work path (C) (See Figure A.6).
To minimize inductance always use the appropriate
size cables, and whenever possible, run the electrode
and work cables in close proximity to one another to
minimize the loop area. Since the most significant factor in cable inductance is the welding loop length,
avoid excessive lengths and do not coil excess cable.
For long work piece lengths, a sliding ground should
be considered to keep the total welding loop length as
short as possible.
REMOTE SENSE LEAD
SPECIFICATIONS
Voltage Sensing Overview
A-7
Depending upon the process, inductance within the
electrode and work cables can influence the voltage
apparent at the studs of the welder, and have a dramatic effect on performance. Remote voltage sense
leads are used to improve the accuracy of the arc voltage information supplied to the control pc board.
Sense Lead Kits (K940-xx) are available for this purpose.
The POWER WAVE R350 has the ability to automatically sense when remote sense leads are connected.
With this feature there are no requirements for settingup the machine to use remote sense leads. This feature can be disabled through the Diagnostics Utility
(available at www.powerwavesoftware.com).
CAUTION
If the auto sense lead feature is disabled and
remote voltage sensing is enabled but the sense
leads are missing, improperly connected extremely high welding outputs may occur.
Sense leads should be attached as close to the weld
as practical, and out of the weld current path when
possible. In extremely sensitive applications it may be
necessary to route cables that contain the sense
leads away from the electrode and work welding
cables.
The best arc performance occurs when the POWER
WAVE R350 has accurate data about the arc conditions.
Voltage sense leads requirements are based on the
weld process (See Table A.2)
TABLE A.2
Process
Electrode Voltage Sensing
67 lead
GMAW
GMAW-P
FCAW
GTAW
(1)
The electrode voltage sense lead (67) is automatically enabled by the weld process, and integral to the 5 pin arclink control cable (K1543xx).
(2)
When a work voltage sense lead (21) is connected the power source will automatically switch over to using this feedback.
(3)
Negative polarity semi-automatic process operation WITHOUT use of a remote work sense lead (21) requires the Negative Electrode
Polarity attribute to be set.
67 lead required
67 lead required
67 lead required
Voltage sense at studs
(1)
Work Voltage Sensing
21 lead
21 lead optional
21 lead optional
21 lead optional
Voltage sense at studs
(2)
(3)
(3)
(3)
FIGURE A.6
POWER
WAVE
R350
A
C
B
POWER WAVE® R350
WORK
Page 15
A-8
Electrode Voltage Sensing
The remote ELECTRODE sense lead (67) is built into
the 5-pin arclink control cable (K1543-xx) and is
always connected to the wire drive feed plate when a
wire feeder is present. Enabling or disabling electrode
voltage sensing is application specific, and automatically configured by the active weld mode.
Work Voltage Sensing
While most applications perform adequately by sensing the work voltage directly at the output stud, the
use of a remote work voltage sense lead is recommended for optimal performance. The remote WORK
sense lead (21) can be accessed through the four-pin
voltage sense connector located on the control panel
by using the K940 Sense Lead Kit. It must be
attached to the work as close to the weld as practical,
but out of the weld current path. For more information
regarding the placement of remote work voltage
sense leads, see the section entitled "Voltage Sensing
Considerations for Multiple Arc Systems."
INSTALLATION
A-8
Negative Electrode Polarity
The POWER WAVE R350 has the ability to automatically sense the polarity of the sense leads. With this
feature there are no set-up requirements for welding
with negative electrode polarity. This feature can be
disabled through the Diagnostics Utility (available at
www.powerwavesoftware.com).
CAUTION
If the auto sense lead feature is disabled and the
weld polarity attribute is improperly configured
extremely high welding outputs may occur.
VOLTAGE SENSING
CONSIDERATIONS FOR MULTIPLE
ARC SYSTEMS
Special care must be taken when more than one arc
is welding simultaneously on a single part. Multiple
arc applications do not necessarily dictate the use of
remote work voltage sense leads, but they are strongly recommended.
If Sense Leads ARE NOT Used:
• Avoid common current paths. Current from adjacent arcs can induce voltage into each others current paths that can be misinterpreted by the power
sources, and result in arc interference.
FIGURE A.7
DIRECTION
OF TRAVEL
If Sense Leads ARE Used:
• Position the sense leads out of the path of the
weld current. Especially any current paths com-
mon to adjacent arcs. Current from adjacent arcs
can induce voltage into each others current paths
that can be misinterpreted by the power sources,
and result in arc interference.
• For longitudinal applications, connect all work
leads at one end of the weldment, and all of the
work voltage sense leads at the opposite end of the
weldment. Perform welding in the direction away
from the work leads and toward the sense leads.
(See Figure A.7)
CONNECT ALL SENSE
LEADS AT THE END
OF THE WELD.
CONNECT ALL
WORK LEADS AT
THE BEGINNING
OF THE WELD.
POWER WAVE® R350
Page 17
A-10
INSTALLATION
• For circumferential applications, connect all work
leads on one side of the weld joint, and all of the
work voltage sense leads on the opposite side,
such that they are out of the current path.
(See Figure 8.A)
FIGURE A.8
POWER
SOURCE
#1
WER
PO
SOURCE
#2
A-10
POWER
SOURCE
#1
WER
PO
SOURCE
#1
POWER
SOURCE
#2
WER
PO
SOURCE
#2
POWER WAVE® R350
Page 18
A-11
INSTALLATION
A-11
CONTROL CABLE CONNECTIONS
General Guidelines
Genuine Lincoln control cables should be used at all
times (except where noted otherwise). Lincoln cables
are specifically designed for the communication and
power needs of the Power Wave / Power Feed systems. Most are designed to be connected end to end
for ease of extension. Generally, it is recommended
that the total length not exceed 100ft. (30.5m). The
use of non-standard cables, especially in lengths
greater than 25 feet, can lead to communication problems (system shutdowns), poor motor acceleration
(poor arc starting), and low wire driving force (wire
feeding problems). Always use the shortest length of
control cable possible, and DO NOT coil excesscable.
Regarding cable placement, best results will be
obtained when control cables are routed separate
from the weld cables. This minimizes the possibility of
interference between the high currents flowing
through the weld cables, and the low level signals in
the control cables. These recommendations apply to
all communication cables including ArcLink® and
Ethernet connections.
Product specific Installation Instructions
Connection Between Power Source and ArcLink®
Compatible Wirefeeders (K1543-xx, K2683-xx –
ArcLink Control Cable)
The 5-pin ArcLink control cable connects the power
source to the wire feeder. The control cable consists
of two power leads, one twisted pair for digital communication, and one lead for voltage sensing. The 5pin ArcLink connection on the POWER WAVE R350 is
located on the rear panel above the power cord. The
control cable is keyed and polarized to prevent
improper connection. Best results will be obtained
when control cables are routed separate from the
weld cables, especially in long distance applications.
The recommended combined length of the ArcLink
control cable network should not exceed 200ft.
(61.0m).
Connection Between Power Source and Wire
Feeder (K1785 or K2709 Control Cable)
The 14-pin wire feeder control cable connects the
power source to the wire drive. It contains all of the
necessary signals to drive the motor and monitor the
arc, including the motor power, tachometer, and arc
voltage feedback signals. The wire feeder connection
on the POWER WAVE R350 is located in the upperright corner of the case back. The K2709 series external dress cable is recommended for severe duty applications such as hard automation or for robot arms not
equipped with an internal control cable. Best results
will be obtained when control cables are routed separate from the weld cables, especially in long distance
applications. Maximum cable length should not
exceed 25ft (7.6m).
Connection Between Power Source and Ethernet
Networks
The POWER WAVE R350 is equipped with an IP67
rated ODVA compliant RJ-45 Ethernet connector,
which is located on the rear panel. All external
Ethernet equipment (cables, switches, etc.), as
defined by the connection diagrams, must be supplied
by the customer. It is critical that all Ethernet cables
external to either a conduit or an enclosure are solid
conductor, shielded cat 5e cable, with a drain. The
drain should be grounded at the source of transmission. For best results, route Ethernet cables away
from weld cables, wire drive control cables, or any
other current carrying device that can create a fluctuating magnetic field. For additional guidelines refer to
ISO/IEC 11801. Failure to follow these recommendations can result in an Ethernet connection failure during welding.
Selecting a Wire Drive and Setting the Wire Drive
Gear Ratio.
The POWER WAVE R350 can accommodate a number of standard wire drives including the AutoDrive
4R100 (default), AutoDrive 4R220, and PF-10R. The
feeder control system must be configured for both the
wire drive type and gear ratio (high or low speed
range). This can be accomplished with the Weld
Manager Utility (included on the Power Wave
Utilities and Service Navigator CDʼs or available at
www.powerwavesoftware.com).
Additional information is also available in the “How To”
section at www.powerwavesoftware.com.
POWER WAVE® R350
Page 19
B-1
OPERATION
B-1
SAFETY PRECAUTIONS
READ AND UNDERSTAND ENTIRE SECTION
BEFORE OPERATING MACHINE.
WARNING
• ELECTRIC SHOCK CAN KILL.
• Do not touch electrically live
part or electrode with skin or
wet clothing.
• Insulate yourself from work and
ground.
• Always wear dry insulating gloves.
• Do not operate with covers, panels or guards
removed or open.
When the POWER WAVE® R350 is powered up, it
can take as long as 30 seconds for the machine to be
ready to weld.
DUTY CYCLE
The duty cycle is based on a ten-minute period. A
40% duty cycle represents 4 minutes of welding and 6
minutes of idling in a ten-minute period. Refer to the
technical specification section for the Power Wave
R350ʼs duty cycle ratings.
PROTECTIVE
GROUND
COOLER
OUTPUT
OPERATORS
MANUAL
WORK
CIRCUIT BREAKER
POWER WAVE® R350
Page 20
B-2
OPERATION
PRODUCT DESCRIPTION
PRODUCT SUMMARY
The POWER WAVE® R350 is a portable multiprocess power source with high-end functionality
capable of DC TIG, MIG, Pulsed MIG and Flux-Cored
welding. It is ideal for a wide variety of materials
including aluminum, stainless, and nickel — where arc
performance is critical. The Power Wave® R350
includes an integrated wire drive module and 14-pin
MS-Style connection to support the PF-10R, and Auto
Drive 4R100/4R220.
B-2
RECOMMENDED PROCESSES
The POWER WAVE® R350 is a high speed, multiprocess power source capable of regulating the current, voltage, or power of the welding arc. With an output range of 5 to 350 amperes, it supports a number
of standard processes including synergic GMAW,
GMAW-P, FCAW, FCAW-SS, GTAW and GTAW-P
on various materials especially steel, aluminum and
stainless.
The POWER WAVE® R350 is designed to be a flexible welding system. Like existing Power Waveʼs, the
software based architecture allows for future
upgrades. ArcLink® communication is supported
through the standard 5 pin MS-style interface. The
new ArcLink®XT communication protocol is supported
through an RJ-45 type Ethernet connection, which
also provides access for the Power Wave Utilities software tools. The Ethernet communication also gives
the POWER WAVE® R350 the ability to run
Production Monitoring™ 2. Also Available is a
Devicenet option to allow the Power Wave® R350 to
be used in a wide range of configurations. The
POWER WAVE® R350 is being designed to be compatible with advanced welding modules like STT.
Access to remote voltage sensing is available through
the 4 pin sense lead connector (work and electrode),
at the feeder via the 14 pin MS-style connector (electrode only), or at the 5 pin MS-style ArcLink® connector (electrode only).
RECOMMENDED PROCESSES AND
EQUIPMENT
PROCESS LIMITATIONS
The software based weld tables of the POWER
WAVE® R350 limit the process capability within the
output range and the safe limits of the machine. In
general the processes will be limited to .030-.052 solid
steel wire, .030-.045 stainless wire, .035-1/16 cored
wire, and .035 and 1/16 Aluminum wire.
EQUIPMENT LIMITATIONS
Only ArcLink compatible robotic wire feeders, semiautomatic wire feeders and users interfaces may be
used. If other Lincoln wire feeders or non-Lincoln wire
feeders are used there will be limited process capability and performance and features will be limited.
The
POWER WAVE® R350
and semiautomatic welding. The
can be set up in a number of configurations, some requiring
optional equipment or welding programs.
is recommended for robotic
POWER WAVE® R350
RECOMMENDED EQUIPMENT
The POWER WAVE® R350 is designed to be compatible with the current range of Power Feed™ and
Auto Drive systems including future versions of
ArcLink® feeders.
POWER WAVE® R350
Page 21
B-3
8
1
2
4
7
5
6
3
OPERATION
B-3
DESIGN FEATURES
Loaded with Standard Features
• Multiple process DC output range: 5 - 350 Amps.
• 200 – 600 VAC, 1 for 208 and 230, 3 phase for all
voltages, 50-60Hz input power.
• New and Improved Line Voltage Compensation
holds the output constant over wide input voltage
fluctuations.
• Utilizes next generation microprocessor control,
based on the ArcLink® platform.
• State of the art power electronics technology yields
superior welding capability.
• Electronic over current protection.
• Input over voltage protection.
• F.A.N. (fan as needed). Cooling fan runs when the
output is energized and for 5 minutes after the output has been turned off.
• Thermostatically protected for safety and reliability.
• Ethernet connectivity via RJ-45 connector.
• Panel mounted Status, FeedHead Status, and
Thermal LED indicators facilitate quick and easy
troubleshooting.
• Potted PC boards for enhanced ruggedness/reliability.
• 115V/15A duplex receptacle supports rigorous
demands of heavy duty fume extraction and water
cooling equipment.
• Enclosure reinforced with heavy duty aluminum
extrusions for mechanical toughness.
• Waveform Control Technology™ for good weld
appearance and low spatter, even when welding
nickel alloys.
• Sync Tandem installed.
• Auto Drive 4R9100, 4R200 and PF-10R feeders
supported via standard 14 pin MS style connector.
• Cam Lock type connectors.
2. THERMAL LED - (Thermal overload): A yellow
light that comes on when an over temperature situation occurs. Output is disabled and the fan continues to run, until the machine cools down. When
cool, the light goes out and output is enabled.
3. Feeder Status LED - Indicates the status of the
feeder control system.
4. NEGATIVE OUTPUT TERMINAL.
5. POSITIVE OUTPUT TERMINAL.
6. VOLTAGE SENSE CONNECTOR: Allows for sep-
arate remote electrode and work sense leads.
PinLeadFunction
321Work Voltage Sense
167EElectrode Voltage Sense
7. ON/OFF SWITCH: Controls input power to the
Power Wave R350.
WARNING
The Power Wave R350 ON/OFF switch is NOT
intended as a Service Disconnect for this equipment.
1. STATUS LED - A two color LED that indicates sys-
tem errors. The Power Wave R350 is equipped
with two indicators. One is for the inverter power
source, while the other indicates the status of the
feeder control system. Normal operation is a
steady green light. Basic error conditions are indicated in the table below. For more information and
a detailed listing, see the troubleshooting section of
this document or the Service Manual for this
machine. (See Troubleshooting Section for
operational functions.)
NOTE: The Power Wave R350 status light will flash
green, and sometimes red and green, for up to one
minute when the machine is first turned on. This is a
normal situation as the machine goes through a self
test at power up.
nection to the Auto Drive 4R100/4R220 and
PF10R series wire feeders.
PinLeadFunction
A539Motor +
B541Motor C521Solenoid +
D522Solenoid Common
E845Tach 2A differential signal
F847Single Tach input
G841+15V Tach supply
H844Tach common
IOpenReserved for future use
JOpenReserved for future use
K842Tach 1A differential signal
L843Tach 1B differential signal
M846Tach 2B differential signal
N67GElectrode Voltage Sense
POWER WAVE® R350
Page 23
B-5
OPERATION
B-5
COMMON WELDING PROCEDURES
WARNING
MAKING A WELD
The serviceability of a product or structure utilizing the welding programs is and must be the sole
responsibility of the builder/user. Many variables
beyond the control of The Lincoln Electric
Company affect the results obtained in applying
these programs. These variables include, but are
not limited to, welding procedure, plate chemistry
and temperature, weldment design, fabrication
methods and service requirements. The available
range of a welding program may not be suitable
for all applications, and the build/user is and must
be solely responsible for welding program selection.
Choose the electrode material, electrode size, shielding gas, and process (GMAW, GMAW-P etc.) appropriate for the material to be welded.
Select the weld mode that best matches the desired
welding process. The standard weld set shipped with
the POWER WAVE® R350 encompasses a wide
range of common processes that will meet most
needs. If a special weld mode is desired, contact the
local Lincoln Electric sales representative.
All adjustments are made through the user interface.
Because of the different configuration options your
system may not have all of the following adjustments.
See Accessories Section for Kits and Options avaliable to use with the POWER WAVE® R350.
Basic Welding Controls
Weld Mode
Selecting a weld mode determines the output characteristics of the Power Wave power source. Weld
modes are developed with a specific electrode material, electrode size, and shielding gas. For a more complete description of the weld modes programmed into
the POWER WAVE® R350 at the factory, refer to the
Weld Set Reference Guide supplied with the machine
or available at www.powerwavesoftware.com.
Wire Feed Speed (WFS)
In synergic welding modes (synergic CV, GMAW-P),
WFS is the dominant control parameter. The user
adjusts WFS according to factors such as wire size,
penetration requirements, heat input, etc. The
POWER WAVE® R350 then uses the WFS setting to
adjust the voltage and current according to settings
contained in the Power Wave.
In non-synergic modes, the WFS control behaves like
a conventional power source where WFS and voltage
are independent adjustments. Therefore, to maintain
proper arc characteristics, the operator must adjust
the voltage to compensate for any changes made to
the WFS.
Amps
In constant current modes, this control adjusts the
welding amperage.
Volts
In constant voltage modes, this control adjusts the
welding voltage.
Definition of Welding Modes
NON-SYNERGIC WELDING MODES
• A Non-synergic welding mode requires all welding
process variables to be set by the operator.
SYNERGIC WELDING MODES
• A Synergic welding mode offers the simplicity of
single knob control. The machine will select the correct voltage and amperage based on the Wire Feed
Speed (WFS) set by the operator.
POWER WAVE® R350
Trim
In pulse synergic welding modes, the Trim setting
adjusts the arc length. Trim is adjustable from 0.50 to
1.50. 1.00 is the nominal setting and is a good starting point for most conditions.
UltimArc™ Control
UltimArc™ Control allows the operator to vary the arc
characteristics. UltimArc™ Control is adjustable from
–10.0 to +10.0 with a nominal setting of 0.0.
Page 24
B-6
OPERATION
B-6
GTAW (TIG) WELDING
The welding current can be set through a PF10M or
PF25M wire feeder.
The TIG mode features continuous control from 5 to
350 amps with the use of an optional foot amptrol
(K870). The POWER WAVE® R350 can be run in
either a Touch Start TIG mode or Scratch start TIG
mode.
CONSTANT VOLTAGE WELDING
Synergic CV
For each wire feed speed, a corresponding voltage is
preprogrammed into the machine through special software at the factory.
The nominal preprogrammed voltage is the best average voltage for a given wire feed speed, but may be
adjusted to preference. When the wire feed speed
changes, the Power Wave automatically adjusts the
voltage level correspondingly to maintain similar arc
characteristics throughout the WFS range.
Non Synergic CV
In non-synergic modes, the WFS control behaves
more like a conventional CV power source where
WFS and voltage are independent adjustments.
Therefore to maintain the arc characteristics, the operator must adjust the voltage to compensate for any
changes made to the WFS.
PULSE WELDING
Pulse welding procedures are set by controlling an
overall “arc length” variable. When pulse welding, the
arc voltage is highly dependent upon the waveform.
The peak current, back ground current, rise time, fall
time and pulse frequency all affect the voltage. The
exact voltage for a given wire feed speed can only be
predicted when all the pulsing waveform parameters
are known. Using a preset voltage becomes impractical and instead the arc length is set by adjusting
“trim”.
Trim adjusts the arc length and ranges from 0.50 to
1.50 with a nominal value of 1.00. Trim values greater
than 1.00 increase the arc length, while values less
than 1.00 decrease the arc length. (See figure B.3)
All CV Modes
Pinch adjusts the apparent inductance of the wave
shape. The “pinch” function is inversely proportional
to inductance. Therefore, increasing Pinch Control
greater than 0.0 results in a crisper arc (more spatter)
while decreasing the Pinch Control to less than 0.0
provides a softer arc (less spatter).
FIGURE B.3
Trim .50
Arc Length Short
Arc Length Medium
Trim 1.00
Trim 1.50
Arc Length Long
POWER WAVE® R350
Page 25
B-7
OPERATION
Most pulse welding programs are synergic. As the
wire feed speed is adjusted, the POWER WAVE®
R350 will automatically recalculate the waveform
parameters to maintain similar arc properties.
The POWER WAVE® R350 utilizes “adaptive control”
to compensate for changes in the electrical stick-out
while welding. (Electrical stick-out is the distance
from the contact tip to the work piece.) The POWER
WAVE® R350 waveforms are optimized for a 0.75”
stick-out. The adaptive behavior supports a range of
stick-outs from 0.50 to 1.25”. At very low or high wire
feed speeds, the adaptive range may be less due to
reaching physical limitations of the welding process.
UltimArc™ Control adjusts the focus or shape of the
arc. UltimArc™ Control is adjustable from -10.0 to
+10.0 with a nominal setting of 0.0. Increasing the
UltimArc™ Control increases the pulse frequency and
background current while decreasing the peak current. This results in a tight, stiff arc used for high
speed sheet metal welding. Decreasing the
UltimArc™ Control decreases the pulse frequency
and background current while increasing the peak current. This results in a soft arc good for out of position
welding. (See Figure B.4)
B-7
UltimArc™ Control -10.0
Low F requency, Wide
FIGURE B.4
UltimArc™ Control
Med ium Frequency and Width
OF F
POWER WAVE® R350
UltimArc™ Control
Hi gh F requency , Fo cu sed
+10.0
Page 26
C-1
ACCESSORIES
KITS, OPTIONS AND ACCESSORIES
All Kits Options and Accessories are found on the
Web site: (www.lincolnelectric.com)
C-1
Request Lincoln publication E13.40
(See www.lincolnelectric.com)
TIG OPTIONS
FACTORY INSTALLED
None Available
FIELD INSTALLED OPTIONS
GENERAL OPTIONS
DeviceNet Kit
Mounts inside the back of the Power Wave R350.
Allows Devicenet objects to communicate with the
Power Wave R350.
Order K2827-1
Work Voltage Sense Lead Kit
Required to accurately monitor voltage at the arc.
Order K940-XX Series
Order K1811-XX Series
Deluxe Adjustable Gas Regulator & Hose Kit
Accommodates CO
ders. Includes a cylinder pressure gauge, dual scale
flow gauge and 4.3 ft. (1.3 m) gas hose.
Order K586-1
Work and Wire Feeder 2/0 Weld Cable Package
Includes Cam-Lock connectors, work clamps, 15 ft.
(4.5 m) work cable and 10 ft. (3.0 m) electrode cable.
Rated 350 amps, 60% duty cycle.
Order K1803-2
Cam-Lock cable plug for 2/0 (50mm2)cable. Order
K2946-1
Coaxial Welding Cable
Optimum weld cables for minimizing cable inductance
and optimizing welding performance.
AWG 1/0 Coaxial Cables:
Order K1796-25 for 25 feet (7.6 m) cable length.
Order K1796-50 for 50 feet (15.2 m) cable length.
Order K1796-75 for 75 feet (22.9 m) cable length.
Order K1796-100 for 100 feet (30.5 m) cable length.
AWG #1 Coaxial Cables:
Order K2593-25 for 25 feet (7.6 m) cable length.
Order K2593-50 for 50 feet (15.2 m) cable length.
Order K2593-100 for 100 feet (30.5 m) cable length.
, Argon, or Argon-blend gas cylin-
2
Pro-Torch™ TIG Torches
A full line of air-cooled and water-cooled torches available.
Request Lincoln publication E12.150
(See www.lincolnelectric.com)
Hand Amptrol®
Provides 25 ft. (7.6 m) of remote current control for TIG welding.
Order K963-4 for Hand Amptrol with
12 pin connector
Foot Amptrol®
Provides 25 ft. (7.6 m) of remote
current control for TIG welding.
Order K870-2 for Foot Amptrol
with 12 pin connector.
Arc Start Switch
May be used in place of the Foot or Hand Amptrol®.
Comes with a 25 ft. (7.6 m) cable. Attaches to the TIG
torch for convenient finger control to start and stop the
weld cycle at the current set on the machine.
Order K814
Cam-Lock Torch Adapter
For connecting K1782-1, K1782-3, K1782-12 torches
to the S350.
Order K960-3
TIG-Mate™ 17V Air-Cooled TIG Torch Starter Pack
Get everything you need for TIG welding in one complete easy-to-order kit packaged in its own portable
carrying case. Includes: PTA-17V torch, parts kit,
Harris® flowmeter/regulator, 10 ft. (3.0 m) gas hose,
and work clamp and cable.
Order K2265-1
MIG OPTIONS
Work and Feeder Welding Cables
350 amps, 60% duty cycle with Cam-Lock connectors
and Ground Clamp.
Order K1803-2
COMPATIBLE LINCOLN EQUIPMENT
Welding Fume Extractors
Lincoln offers a wide range of fume extraction environmental system solutions, ranging from portable systems easily wheeled around a shop to shop-wide central systems servicing many dedicated welding stations.
POWER WAVE® R350
Any Arclink compatible wire feeding equipment
(See www.lincolnelectric.com)
Page 27
D-1
MAINTENANCE
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
•Do not operate with covers
removed.
•Turn off power source before
installing or servicing.
•Do not touch electrically hot
parts.
• Turn the input power to the welding power
source off at the fuse box before working in the
terminal strip.
• Only qualified personnel should install, use or
service this equipment.
Routine maintenance consists of periodically blowing
out the machine, using a low-pressure air stream, to
remove accumulated dust and dirt from the intake and
outlet louvers, and the cooling channels in the
machine.
D-1
PERIODIC MAINTENANCE
Calibration of the POWER WAVE® R350 is critical to
its operation. Generally speaking the calibration will
not need adjustment. However, neglected or improperly calibrated machines may not yield satisfactory
weld performance. To ensure optimal performance,
the calibration of output Voltage and Current should
be checked yearly.
CALIBRATION SPECIFICATION
Output Voltage and Current are calibrated at the factory. Generally the machine calibration will not need
adjustment. However, if the weld performance
changes, or the yearly calibration check reveals a
problem, use the calibration section of the
Diagnostics Utility to make the appropriate adjustments.
The calibration procedure itself requires the use of a
grid, and certified actual meters for voltage and current. The accuracy of the calibration will be directly
affected by the accuracy of the measuring equipment
you use. The Diagnostics Utility includes detailed
instructions, and is available on the Service
Navigator CD or at www.powerwavesoftware.com.
POWER WAVE® R350
Page 28
E-1
TROUBLESHOOTING
HOW TO USE TROUBLESHOOTING GUIDE
WARNING
Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician and
machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical
Shock, please observe all safety notes and precautions detailed throughout this manual.
This Troubleshooting Guide is provided to help you
locate and repair possible machine malfunctions.
Simply follow the three-step procedure listed below.
Step 1. LOCATE PROBLEM (SYMPTOM).
Look under the column labeled “PROBLEM (SYMPTOMS)”. This column describes possible symptoms
that the machine may exhibit. Find the listing that
best describes the symptom that the machine is
exhibiting.
Step 2. POSSIBLE CAUSE.
The second column labeled “POSSIBLE CAUSE” lists
the obvious external possibilities that may contribute
to the machine symptom.
Step 3. RECOMMENDED COURSE OF ACTION
This column provides a course of action for the
Possible Cause, generally it states to contact your
local Lincoln Authorized Field Service Facility.
If you do not understand or are unable to perform the
Recommended Course of Action safely, contact your
local Lincoln Authorized Field Service Facility.
WARNING
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the welding power source before installation or changing
drive rolls and/or guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode and drive mechanism are "hot" to work and
ground and could remain energized several seconds after the gun trigger is released.
• Welding power source must be connected to system ground per the National Electrical Code or any
applicable local codes.
• Only qualified personnel should perform maintenance work.
Observe all additional Safety Guidelines detailed throughout this manual.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 29
E-2
TROUBLESHOOTING
USING THE STATUS LED TO
TROUBLESHOOT SYSTEM PROBLEMS
There are two status lights that display error codes. If a
problem occurs it is important to note the condition of the
status lights. Therefore, prior to cycling power to the sys-
tem, check the power source status light for error
sequences as noted below.
There is one externally mounted status light located on the
case front of the machine. This status light corresponds to
the main control boardʼs status. A second status light is
internal and is located on the input control board and can be
seen by looking through the left case side louvers. There is
an audible beeper associated with this input control boardʼs
status light. So the error codes on the input board can be
detected through either the status light or the status beeper.
TABLE E.1
Light
Condition
Main control board status light
E-2
Included in this section is information about the Status
Lights and some basic troubleshooting charts for both
machine and weld performance.
The status lights for the main control board is a dual-color
LEDʼs. Normal operation for each is steady green. Where
as the status light on the input control board is one color.
Normal operation is for the status light to be off ( and the
buzzer to be off).
Error conditions are indicated in the following Table E.1.
Meaning
Input control board
Steady Green
Blinking Green
Fast Blinking Green
Alternating Green and Red
Steady Red
Blinking Red
System OK. Power source is operational, and is communicating normally with all
healthy peripheral equipment connected to its ArcLink network.
Occurs during power up or a system reset, and indicates the POWER
WAVE® R350 is mapping (identifying) each component in the system.
Normal for first 1-10 seconds after power is turned on, or if the system
configuration is changed during operation.
Indicates Auto-mapping has failed
Non-recoverable system fault. If the Status lights are flashing any com-
bination of red and green, errors are present. Read the error code(s)
before the machine is turned off.
Error Code interpretation through the Status light is detailed in the
Service Manual. Individual code digits are flashed in red with a long
pause between digits. If more than one code is present, the codes will
be separated by a green light. Only active error conditions will be
accessible through the Status Light.
Error codes can also be retrieved with the Diagnostics Utility (includ-
ed on the Service Navigator CD or available at www.power-
wavesoftware.com). This is the preferred method, since it can access
historical information contained in the error logs.
To clear the active error(s), turn power source off, and back on to
reset.
Not applicable.
Not applicable.
Not applicable.
Not applicable.
Not applicable.
Not applicable.
Not applicable.
Error Code interpretation -
Individual code digits are flashed
in red with a long pause between
digits. These error codes are three
digit codes that all start with a
number three.
Status LED off
Not applicable.
System OK
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 30
E-3
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
E-3
ERROR CODES FOR THE POWER WAVE® R350
The following is a partial list of possible error codes for the POWER WAVE® R350. For a complete listing consult
the Service Manual for this machine.
MAIN CONTROL BOARD ( “STATUS” LIGHT)
Error Code #
Indication
36Thermal error
54 Secondary (Output) over current error
56 Chopper communication error
58 Primary Fault error
Other
Indicates over temperature. Usually accompanied by Thermal LED.
Check fan operation. Be sure process does not exceed duty cycle
limit of the machine
The long term average secondary (weld) current limit has been
exceeded. NOTE: The long term average secondary current limit is
325 amps.
Indicates communication link between main control board and chopper has errors. If cycling the input power on the machine does not
clear the error, contact the Service Department.
Review error code from input board status light or status beeper.
Most likely caused by an over power condition which caused an
under voltage on the primary bus. If cycling the input power on the
machine does not clear the error, contact the Service Department.
Error codes that contain three or four digits are defined as fatal
errors. These codes generally indicate internal errors on the Power
Source Control Board. If cycling the input power on the machine
does not clear the error, contact the Service Department.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 31
E-4
Error Code #
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
INPUT CONTROL BOARD
Indication
E-4
331 Peak input current limit
333 Under-voltage lockout
336 Thermal Fault
337 Pre-charge timeout
346 Transformer primary over current
Other
Input current limit has been exceeded. Typically indicates short
term power overload. If problem persists contact Service
Department.
+15 VDC supply on Input control board too low. Verify input voltage
is within the acceptable range. If problem persists contact service
department.
Thermostat on primary module tripped. Typically caused by bottom
fan not working.
Problem with start-up sequence. If problem persists contact Service
Department.
Transformer current too high. Typically indicates short term power
overload. If problem persists contact service department.
Contact the Service Department.
Error Code #
81 Motor Overload
82 Motor Overcurrent
83 Shutdown #1
84 Shutdown #2
WIRE DRIVE MODULE
Indication
Long term average motor current limit has been exceeded.
Typically indicates mechanical overload of system. If problem continues consider higher torque gear ratio (lower speed range).
Absolute maximum motor current level has been exceeded. This is
a short term average to protect drive circuitry.
The Shutdown inputs on the Power Wave R350 have been disabled. The presence of these errors indicates the Feed Head
Control PCB may contain the wrong operating software.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 32
E-5
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
TROUBLESHOOTING
POSSIBLE
CAUSE
Basic Machine Problems
E-5
RECOMMENDED
COURSE OF ACTION
Input fuses keep blowing
Machine will not power up (no lights)
1. Improperly sized input fuses.
2. Improper Weld Procedure requiring output levels in excess of
machine rating.
3. Major physical or electrical damage is evident when the covers
are removed.
1. No Input Power
2. Input voltage is too low or too
high.
1. Make sure fuses are properly
sized. See installation section of
this manual for recommended
sizes.
2. Reduce output current, duty
cycle, or both.
3. Contact your local authorized
Lincoln Electric Field Service
facility for technical assistance.
1. Make sure input supply disconnect has been turned ON. Check
input fuses. Make certain that the
Power Switch (SW1) on the
power source is in the “ON” position.
2. Make certain that input voltage is
correct, according to the Rating
Plate located on the rear of the
machine.
Machine wonʼt weld, canʼt get any
output.
This problem will normally be
accompanied by an error code. See
“Status Light” section of this document for additional information.
Input voltage is too low or too high.
1.
2. Thermal Error.
3. Secondary current limit has been
exceeded. (see error 54)
3a. Input control board fault (see
input control board error status).
1. Make certain that input voltage is
correct, according to the Rating
Plate located on the rear of the
machine.
2. See “Thermal LED is ON” sec-
tion.
3. Possible short in output circuit. If
condition persists, contact an
authorized Lincoln Electric Field
Service facility.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 33
E-6
PROBLEMS
(SYMPTOMS)
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
E-6
Thermal LED is ON
Thermal LED is ON
“Real Time Clock” no longer functioning
General degradation of weld performance
Improper fan operation
Basic Machine Problems (Continued)
1. Improper fan operation.
2. Open thermostat circuit.
1. Control PC Board Battery.
Weld and Arc Quality Problems
1. Wire feed problem.
2. Cabling problems.
1. Check for proper fan operation.
Fan should run in a low speed
setting when the machine is idle
and in a high speed when the
output is triggered. Check for
material blocking intake or
exhaust louvers, or for excessive
dirt clogging cooling channels in
machine.
2. Check for broken wires, open
connections or faulty thermostats
in the thermostat circuit.
1. Replace the battery (Type:
BS2032)
1. Check for feeding problems. Make
sure proper gear ratio has been
selected.
2. Check for bad connections,
excessive loops in cable, etc.
3. Loss of, or improper Shielding
Gas.
4. Verify weld mode is correct for
process.
5. Machine calibration.
NOTE: The presence of heat in the
external welding circuit indicates
poor connections or undersized
cables.
3. Verify gas flow and type are correct.
4.Select the correct weld mode for
the application.
5. The power source may require
calibration. (current, voltage,
WFS).
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 34
E-7
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
Weld and Arc Quality Problems (Continued)
Wire burns back to tip at the end of
the weld.
TROUBLESHOOTING
POSSIBLE
CAUSE
1. Burnback Time
E-7
RECOMMENDED
COURSE OF ACTION
1. Reduce burnback time and/or
work point.
Machine output shuts down during a
weld.
Machine wonʼt produce full output.
Excessively long and erratic arc.
1. Secondary current limit has been
exceeded, and the machine shuts
down to protect itself.
2. System Fault
1. Input voltage may be too low, limiting output capability of the power
source.
2. Single Phase Operation
3. Machine calibration.
1. Wire feed problem.
1. Adjust procedure or reduce load
to lower current draw from the
machine.
2. A non-recoverable fault will interrupt welding. This condition will
also result in a status light blinking. See the Status Light section
for more information.
1. Make certain that the input voltage
is proper, according to the Rating
Plate located on the rear of the
machine.
2. Maximum output is reduced if
there is a loss of phase on 460 or
575 VAC. Check for the presence of
all phases.
3. Calibrate secondary current and
voltage.
1. Check for feeding problems. Make
sure proper gear ratio has been
selected.
2. Loss of, or improper Shielding
Gas
3. Machine calibration.
2. Verify gas flow and type are correct
3. Calibrate secondary current and
voltage.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 35
E-8
PROBLEMS
(SYMPTOMS)
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
Ethernet
RECOMMENDED
COURSE OF ACTION
E-8
Cannot Connect
1. Physical connection.
2. IP address information.
3. Ethernet Speed
1. Verify that the correct patch cable
or cross over cable is being used
(refer to local IT department for
assistance).
1a. Verify the cables are fully insert-
ed into the bulk head connector.
1b. The LED under the PC board
ethernet connector will be lit
when the machine is connected
to another network device.
2. Use the appropriate PC utility to
verify the correct IP address information has been entered.
2a. Verify no duplicate the IP
addresses exist on the network.
3. Verify that the network device
connected to the Power Wave is
either a 10-baseT device or a
10/100-baseT device.
Connection Drops while welding
1. Cable Location
1. Verify Network cable is not located next to current carrying conductors. This would include input
power cables and welding output
cables.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® R350
Page 36
F-1
DIAGRAMS
F-1
POWER WAVE® R350
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the
machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number.
Page 37
F-2
13.87
18.81
6.00
18.31
22.2527.44
DIMENSION PRINT
F-2
POWER WAVE® R350
Page 38
NOTES
POWER WAVE® R350
Page 39
NOTES
POWER WAVE® R350
Page 40
WARNING
Spanish
AVISO DE
PRECAUCION
G Do not touch electrically live parts or
electrode with skin or wet clothing.
G Insulate yourself from work and
ground.
G No toque las partes o los electrodos
bajo carga con la piel o ropa mojada.
G Aislese del trabajo y de la tierra.
G Keep flammable materials away.
G Mantenga el material combustible
fuera del área de trabajo.
G Wear eye, ear and body protection.
G Protéjase los ojos, los oídos y el
cuerpo.
French
ATTENTION
German
WARNUNG
Portuguese
ATENÇÃO
Japanese
Chinese
Korean
Arabic
G Ne laissez ni la peau ni des vête-
ments mouillés entrer en contact
avec des pièces sous tension.
G Isolez-vous du travail et de la terre.
G Berühren Sie keine stromführenden
Teile oder Elektroden mit Ihrem
Körper oder feuchter Kleidung!
G Isolieren Sie sich von den
Elektroden und dem Erdboden!
G Não toque partes elétricas e elec-
trodos com a pele ou roupa molhada.
G Isole-se da peça e terra.
G Gardez à l’écart de tout matériel
inflammable.
G Entfernen Sie brennbarres Material!
G Mantenha inflamáveis bem guarda-
dos.
G Protégez vos yeux, vos oreilles et
votre corps.
G Tragen Sie Augen-, Ohren- und Kör-
perschutz!
G Use proteção para a vista, ouvido e
corpo.
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE
USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.
SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS
CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.
LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.
LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.
Page 41
G Keep your head out of fumes.
G Use ventilation or exhaust to
remove fumes from breathing zone.
G Turn power off before servicing.
G Do not operate with panel open or
guards off.
WARNING
G Los humos fuera de la zona de res-
piración.
G Mantenga la cabeza fuera de los
humos. Utilice ventilación o
aspiración para gases.
G Gardez la tête à l’écart des fumées.
G Utilisez un ventilateur ou un aspira-
teur pour ôter les fumées des zones
de travail.
G Vermeiden Sie das Einatmen von
Schweibrauch!
G Sorgen Sie für gute Be- und
Entlüftung des Arbeitsplatzes!
G Mantenha seu rosto da fumaça.
G Use ventilação e exhaustão para
remover fumo da zona respiratória.
G Desconectar el cable de ali-
mentación de poder de la máquina
antes de iniciar cualquier servicio.