This welder is designed and built with safety in mind.
However, your overall safety can be increased by proper installation
... and thoughtful operation on your part.
DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT
WITHOUT READING THIS MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED THROUGHOUT.
And, most importantly, think before you act and be careful.
For use with machines having Code Numbers:
11532
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OPERATOR’S MANUAL
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Page 2
i
SAFETY
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
i
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.
Mar ‘95
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 w et clothing. Wear dry, h ole -fr ee
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
mu st be per fo rmed und er el ec trica ll y h azard ou s
con ditions (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 r eel , welding he ad, nozzle or se mia utomatic
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. Ne ver si multa neously touch ele ctrical ly “ho t” par ts 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 fro m the breathing zone. When
we ldi ng with e lectr od es w hi ch r eq ui re s pe cial
ve ntilati on such as s ta inles s or har d f ac in g ( se e
in st ru ct io ns on c on ta in er or M SD S) or o n lead or
cadmium plated steel and other m eta ls or coa tin gs
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
venti lation. In confi ned space s or in so me circum st ances, out do or s, a r espirat or may be requi re d.
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 inj ury or death. Alw ays use enoug h ve ntilatio n,
especially in confined areas, to insure breathing air is safe.
vapors
to
5.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
ma ter ia l safe ty dat a s heet ( MSDS) an d fo ll ow y ou r
employer’s safety practices. MSDS forms are available from
yo ur we lding d istri bu to r o r from th e m an uf actur er .
5.f. Also see item 1.b.
Jan ‘09
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
Re mem be rth atwe ld in gspa rk sandhot
materials from welding can easily go through small cracks
an d openings to adjacent a re as. Avoi d w elding n ea r
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) a nd the operating information f or 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
Co nta in er s and P iping T ha t Hav e Held Ha za rdous
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 we lding current p assing
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 weldi ng s parks from start ing a fire.
though
they have
Preparation
for Welding and Cutting of
CYLINDER may explode
if damaged.
7.a. Use onl y co mp resse d ga s cy li nd ers
containing the correct shielding gas for the
pr oce ss use d a nd p ro perly ope ra ting
re gul at or s d es igned for th e gas a nd
pressure used. All hoses, fittings, etc. should be suitable for
the application and maintained in good condition.
7.b. Al ways keep cyl inder s in an u prigh t po sition se curely
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. Re ad and fo llow t he instr uc tions on compr es sed ga s
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 equ ipment in accordance with the U. S. National
Electrical C ode, all local codes and the manufacturer’s
recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
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.
Jan ‘09
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 L’Arc
1. Protegez-vous contre la secousse électrique:
a. Les circuits à l’électrode et à la piéce sont sous tension
quand la machine à souder est en marche. Eviter toujours
tout contact entre les parties sous tension et la peau nue
ou les vétements mouillés. Porter des gants secs et sans
trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher
metallique ou des grilles metalliques, principalement dans
les positions assis ou couché pour lesquelles une
grande partie du corps peut être en contact avec la
masse.
c. Maintenir le porte-électrode, la pince de masse, le câble
de soudage et la machine à souder en bon et sûr état
defonctionnement.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
refroidir.
e. Ne jamais toucher simultanément les parties sous tension
des porte-électrodes connectés à deux machines à souder parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.
f. Si on utilise la machine à souder comme une source de
courant pour soudage semi-automatique, ces precautions
pour le porte-électrode s’applicuent aussi au pistolet de
soudage.
5. Toujours porter des lunettes de sécurité dans la zone de
soudage. Utiliser des lunettes avec écrans lateraux dans les
zones où l’on pique le laitier.
6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque d’incendie dû aux étincelles.
7. Quand on ne soude pas, poser la pince à une endroit isolé de
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.
8. S’assurer que la masse est connectée le plus prés possible
de la zone de travail qu’il est pratique de le faire. Si on place
la masse sur la charpente de la construction ou d’autres
endroits éloignés de la zone de travail, on augmente le risque
de voir passer le courant de soudage par les chaines de levage, câbles de grue, ou autres circuits. Cela peut provoquer
des risques d’incendie ou d’echauffement des chaines et des
câbles jusqu’à ce qu’ils se rompent.
9. Assurer une ventilation suffisante dans la zone de soudage.
Ceci est particuliérement important pour le soudage de tôles
galvanisées plombées, ou cadmiées ou tout autre métal qui
produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant
d’opérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de l’arc peuvent réagir avec les
vapeurs du solvant pour produire du phosgéne (gas fortement toxique) ou autres produits irritants.
11. Pour obtenir de plus amples renseignements sur la sûreté,
voir le code “Code for safety in welding and cutting” CSA
Standard W 117.2-1974.
2. Dans le cas de travail au dessus du niveau du sol, se protéger contre les chutes dans le cas ou on recoit un choc. Ne
jamais enrouler le câble-électrode autour de n’importe quelle
partie du corps.
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,
donc:
a. Utiliser un bon masque avec un verre filtrant approprié
ainsi qu’un verre blanc afin de se protéger les yeux du
rayonnement de l’arc et des projections quand on soude
ou quand on regarde l’arc.
b. Porter des vêtements convenables afin de protéger la
peau de soudeur et des aides contre le rayonnement de
l‘arc.
c. Protéger l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflammables.
4. Des gouttes de laitier en fusion sont émises de l’arc de
soudage. Se protéger avec des vêtements de protection
libres de l’huile, tels que les gants en cuir, chemise épaisse,
pantalons sans revers, et chaussures montantes.
PRÉCAUTIONS DE SÛRETÉ POUR
LES MACHINES À SOUDER À
TRANSFORMATEUR ET À
REDRESSEUR
1. Relier à la terre le chassis du poste conformement au code
de l’électricité et aux recommendations du fabricant. Le dispositif de montage ou la piece à souder doit être branché à
une bonne mise à la terre.
2. Autant que possible, I’installation et l’entretien du poste
seront effectués par un électricien qualifié.
3. Avant de faires des travaux à l’interieur de poste, la
debrancher à l’interrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur
place.
Mar. ‘93
Page 6
v
SAFETY
Electromagnetic Compatibility (EMC)
Conformance
Products displaying the CE mark are in conformity with European Community Council Directive of 3 May
1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility
(89/336/EEC). It was manufactured in conformity with a national standard that implements a harmonized
standard: EN 60974-10 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding Equipment.
It is for use with other Lincoln Electric equipment. It is designed for industrial and professional use.
Introduction
All electrical equipment generates small amounts of electromagnetic emission. Electrical emission may be
transmitted through power lines or radiated through space, similar to a radio transmitter. When emissions
are received by other equipment, electrical interference may result. Electrical emissions may affect many
kinds of electrical equipment; other nearby welding equipment, radio and TV reception, numerical controlled
machines, telephone systems, computers, etc. Be aware that interference may result and extra precautions
may be required when a welding power source is used in a domestic establishment.
Installation and Use
The user is responsible for installing and using the welding equipment according to the manufacturer’s
instructions. If electromagnetic disturbances are detected then it shall be the responsibility of the user of the
welding equipment to resolve the situation with the technical assistance of the manufacturer. In some cases
this remedial action may be as simple as earthing (grounding) the welding circuit, see Note. In other cases it
could involve construction of an electromagnetic screen enclosing the power source and the work complete
with associated input filters. In all cases electromagnetic disturbances must be reduced to the point where
they are no longer troublesome.
v
Note: The welding circuit may or may not be earthed for safety reasons according to national codes.
Changing the earthing arrangements should only be authorized by a person who is competent to access whether the changes will increase the risk of injury, e.g., by allowing parallel
welding current return paths which may damage the earth circuits of other equipment.
Assessment of Area
Before installing welding equipment the user shall make an assessment of potential electromagnetic problems in the surrounding area. The following shall be taken into account:
a) other supply cables, control cables, signaling and telephone cables; above, below and adjacent to the
welding equipment;
b) radio and television transmitters and receivers;
c) computer and other control equipment;
d) safety critical equipment, e.g., guarding of industrial equipment;
e) the health of the people around, e.g., the use of pacemakers and hearing aids;
f) equipment used for calibration or measurement
g) the immunity of other equipment in the environment. The user shall ensure that other equipment being
used in the environment is compatible. This may require additional protection measures;
h) the time of day that welding or other activities are to be carried out.
L10093 3-1-96H
Page 7
vi
SAFETY
Electromagnetic Compatibility (EMC)
The size of the surrounding area to be considered will depend on the structure of the building and other
activities that are taking place. The surrounding area may extend beyond the boundaries of the premises.
Methods of Reducing Emissions
Mains Supply
Welding equipment should be connected to the mains supply according to the manufacturer’s recommendations. If interference occurs, it may be necessary to take additional precautions such as filtering of the mains
supply. Consideration should be given to shielding the supply cable of permanently installed welding equipment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The
shielding should be connected to the welding power source so that good electrical contact is maintained
between the conduit and the welding power source enclosure.
Maintenance of the Welding Equipment
The welding equipment should be routinely maintained according to the manufacturer’s recommendations.
All access and service doors and covers should be closed and properly fastened when the welding equipment is in operation. The welding equipment should not be modified in any way except for those changes
and adjustments covered in the manufacturers instructions. In particular, the spark gaps of arc striking and
stabilizing devices should be adjusted and maintained according to the manufacturer’s recommendations.
vi
Welding Cables
The welding cables should be kept as short as possible and should be positioned close together, running at
or close to floor level.
Equipotential Bonding
Bonding of all metallic components in the welding installation and adjacent to it should be considered.
However, metallic components bonded to the work piece will increase the risk that the operator could
receive a shock by touching these metallic components and the electrode at the same time. The operator
should be insulated from all such bonded metallic components.
Earthing of the Workpiece
Where the workpiece is not bonded to earth for electrical safety, not connected to earth because of its size
and position, e.g., ships hull or building steelwork, a connection bonding the workpiece to earth may reduce
emissions in some, but not all instances. Care should be taken to prevent the earthing of the workpiece
increasing the risk of injury to users, or damage to other electrical equipment. Where necessary, the connection of the workpiece to earth should be made by a direct connection to the workpiece, but in some countries
where direct connection is not permitted, the bonding should be achieved by suitable capacitance, selected
according to national regulations.
Screening and Shielding
Selective screening and shielding of other cables and equipment in the surrounding area may alleviate problems of interference. Screening of the entire welding installation may be considered for special applications.
1
_________________________
1
Portions of the preceding text are contained in EN 60974-10: “Electromagnetic Compatibility (EMC) product standard for arc welding equipment.”
L10093 3-1-96H
Page 8
viivii
for selecting one of our QUALITY products. We want you to take
TThhaannkkYYoouu
CUSTOMER ASSISTANCE POLICY
The business of our company is manufacturing and selling high quality welding equipment. Our challenge is to
meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask us 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. We are not in a position to warrant or guarantee such advice, and assume no
liability, with respect to such information or advice. We expressly disclaim any warranty of any kind, including any
warranty of fitness for any customer’s 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.
We are a responsive manufacturer, but the selection and use of specific products sold by us is solely within the
control of, and remains the sole responsibility of the customer. Many variables beyond our control 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.
pride in operating this product ••• as much pride as we have in
bringing this product to you!
Please Examine Carton and Equipment For Damage Immediately
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims
for material damaged in shipment must be made by the purchaser against the transportation company at the
time the shipment is received.
Please record your equipment identification information below for future reference. This information can be
found on your machine nameplate.
Product _________________________________________________________________________________
Model Number ___________________________________________________________________________
Code Number or Date Code (if available)______________________________________________________
Serial Number (if available)__________________________________________________________________
Date Purchased___________________________________________________________________________
Where Purchased_________________________________________________________________________
Whenever you request replacement parts or information on this equipment, always supply the information you
have recorded above.
Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.
The level of seriousness to be applied to each is explained below:
WARNING
This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.
CAUTION
This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.
Page 9
TABLE OF CONTENTS
Page
Installation.......................................................................................................Section A
IN CONDUIT
AWG(IEC-MM2) SIZES
40°C (104°F) Ambient
1 (43)
4 (21)
PHYSICAL DIMENSIONS
WIDTH
22.2 in
564 mm
DEPTH
38.0 in
965 mm
150/86
Volts at Rated Amperes
44
44
Auxiliary Power
See the OPERATION section for
Auxiliary Power information
Copper
GROUND WIRE
IN CONDUIT
AWG(IEC-MM2) SIZES
4 (21)
6 (14)
(SUPER LAG)
OR BREAKER
SIZE (AMPS)
225 Amp
125 Amp
WEIGHT
720 lbs.
326 kg.
1
1
Also called “inverse time” or “thermal/magnetic” circuit breakers; circuit breakers which have a delay in tripping action that decreases as the magnitude of the current increases.
DC655e (CE) (RED-D-ARC)
Page 11
A-2
INPUT POWER SUPPLY
C
ABLE WITH BUSHING
OR BOX CONNECTOR
INPUT
CONTACTOR (CR1)
R
ECONNECT
P
ANEL ASSEMBLY
Read entire installation section before starting
installation.
INSTALLATION
SAFETY PRECAUTIONS
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 the Power switch on the DC655e
(CE) “OFF” before connecting or disconnecting output cables, wire feeder or
remote connections, or other equipment.
• Do not touch electrically hot parts.
• Always connect the DC655e (CE) grounding terminal (located on the welder near
the reconnect panel) to a good
electrical earth ground.
SELECT SUITABLE LOCATION
Place the welder where clean cooling air can freely
circulate in through the front louvers and out through
the rear louvers. Dirt, dust or any foreign material that
can be drawn into the welder should be kept at a
minimum. Failure to observe these precautions can
result in excessive operating temperatures and
nuisance shut-downs.
ELECTROMAGNETIC COMPATIBILITY (EMC)
A-2
FIGURE A.1 ELECTRICAL INPUT CONNECTIONS
ELECTRICAL
INPUT CONNECTIONS
Before installing the machine check that the input supply voltage, phase, and frequency are the same as the
voltage, phase, and frequency as specified on the
welder nameplate.
Use input wire sizes that meet local electrical codes or
see the Technical Specifications page in this manual.
Input power supply entry is through the hole in the
Case Back Assembly. See Figure A.1 for the location
of the machine’s input cable entry opening, Input
Contactor (CR1), and reconnect panel.
The EMC classification of the
Scientific and Medical (ISM) group 2, class A. The
(CE)
is for industrial use only. (See prints L10093-1, -2
Safety Pages in the front of Instruction Manual for further
details).
Locate the
machinery. The normal operation of the
may adversely affect the operation of RF controlled equipment, which may result in bodily injury or damage to the
equipment.
DC655e (CE)
STACKING
The DC655e (CE) may be stacked three-high provided the bottom machine is on a stable, hard, level surface. Be sure that the two pins in the roof fit into the
slots in the base of the DC655e (CE) above it.
TILTING
Do not place the machine on a surface that is inclined
enough to create a risk of the machine falling over.
away from radio controlled
DC655e (CE)
DC655e (CE)
is Industrial,
DC655e
FUSE AND WIRE SIZES
Protect the input circuit with the super lag fuses or
delay type circuit breakers listed on the TechnicalSpecifications page of this manual for the machine
being used. They are also called inverse time or thermal/magnetic circuit breakers.
DO NOT use fuses or circuit breakers with a lower
amp rating than recommended. This can result in
“nuisance” tripping caused by inrush current even
when machine is not being used for welding at high
output currents.
GROUND CONNECTION
Ground the frame of the machine. A ground
terminal marked with the symbol ( ) is located inside
the case back of the machine near the input contactor.
Access to the input box assembly is at the upper rear
of the machine. See your local and national electrical
codes for proper grounding methods. Use grounding
wire sizes that meet local electrical codes or see the
Technical Specifications page in this manual.
DC655e (CE) (RED-D-ARC)
Page 12
A-3
INSTALLATION
INPUT POWER SUPPLY CONNECTIONS
A qualified electrician should connect the input power
supply leads.
1. Follow all national and local electrical codes.
2. Use a three-phase line.
A-3
Multiple voltage machines are shipped connected to
the highest input voltage listed on the machine’s rating
plate. Before installing the machine, check that the
reconnect panel in the input box assembly is connected for the proper voltage.
CAUTION
3. Remove the input access door at upper rear of the
machine.
4. Follow input supply connection diagram located
on the inside the door. For multiple voltage
machines, follow the diagram for the voltage that
is within 10% of your actual input line voltage.
5. Connect the three-phase AC power supply leads
L1, L2, and L3 to the input contactor
terminals in the input box assembly. See Figure
A.1.
RECONNECT PROCEDURE
WARNING
Electric Shock Can Kill
• Disconnect input power before performing this procedure.
Failure to follow these instructions can cause
immediate failure of components within the
machine. When powering welder from a generator
be sure to turn off welder first, before generator is
shut down in order to prevent damage to welder.
To reconnect a multiple voltage machine to a different
voltage, remove input power and refer to the input
connection diagram located on the inside of case back
input access door. Follow the diagram for the voltage
that is within 10% of your actual input line voltage.
1. Figure A.2 shows a sample of the reconnect
instructions for a dual voltage machine.
FIGURE A.2 Dual Voltage Machine Reconnection Procedure
DC655e (CE) (RED-D-ARC)
Page 13
A-4
POSITIVE
OUTPUT
TERMINAL
LOW INDUCTANCE
NEGATIVE OUTPUT
TERMINAL
HIGH INDUCTANCE
NEGATIVE OUTPUT
TERMINAL
TERMINAL STRIP
COVER PANEL
14 PIN MS RECEPTACLE
6 PIN MS RECEPTACLE
INSTALLATION
A-4
OUTPUT CONNECTIONS
ELECTRODE AND WORK CABLES
Use the shortest possible cable lengths. See Table
A.1 for recommended cable sizes based on length.
TABLE A.1
Cable Sizes for Combined Lengths of Copper
Electrode and Work Cable
Cable Length
ft. (m)
0 (0) to 100 (30.4)
100 (30.4) to 200 (60.8)
200 (60.8) to 250 (76.2)
The output terminals are located at the lower front of
the welder behind a hinged door Refer to figure A.3.
Route the welding cables through the slotted strain
reliefs of the base to the welding terminals.
LOW INDUCTANCE TERMINAL
On the DC655e (CE), the inside right Negative (-) output terminal is lower choke inductance. This terminal
is presently only recommended for CV mode welding
with NR203Ni 1% negative polarity procedures. All
other processes are to be welded using the outside
right Negative (-) output terminal with higher choke
inductance. CC mode processes must use high
inductance.
For Positive Polarity:
1. Connect the work cable to the high inductance (-)
terminal (marked " ").
Parallel CablesCable Size
2
2
2
2/0 ( 70mm2)
3/0 ( 95mm2)
4/0 (120mm2)
2. Connect the electrode cable to the positive terminal
marked “+”.
3. Remove the terminal strip access cover panel on
the lower case front. Refer to figure A.3 for the
location.
4. Work Sense lead #21 from the 14 Pin MS-receptacle must be connected to “-21”on the terminal strip.
Note: This is how the DC655e (CE) is shipped
from the factory.
5. Replace the terminal strip access cover panel.
For Negative Polarity:
1. Connect the electrode cable to the appropriate high
inductance (-) terminal (marked " ") or
to the low inductance (-) terminal
(marked " ") if using NR203Ni 1% electrode only.
2. Connect the work cable to the positive terminal
marked “+”.
3. Remove the terminal strip access cover panel on
the lower case front. Refer to figure A.3 for the
location.
4. Work Sense lead #21 from the 14 Pin MS-receptacle must be connected to “+21”on the terminal strip.
5. Replace the terminal strip access cover panel.
FIGURE A.3 Output Connections
DC655e (CE) (RED-D-ARC)
Page 14
A-5
F=76
G=75
H=21
I
=41
J
K
=42
A
B=GND
C=2
D
=4
E=77
L
N
M
INSTALLATION
A-5
AUXILIARY POWER AND
CONTROL CONNECTIONS
Located at the lower front of the welder behind a
hinged door are a 6-Pin and a 14-Pin MS type receptacle for connection of auxiliary equipment such as
wire feeders. Also, terminal strips with 115VAC and
connections for auxiliary equipment are located
behind the access panel on the lower case of the
welder. A 220VAC receptacle for a water cooler is
located on the case back.
AUXILIARY POWER TABLE
Voltage and Circuit Breaker Ratings at Auxiliary Power
Connections
Auxiliary Export
PowerModels
Connections (50/60 Hz)
Terminal strip 115V 15A
terminals 31 & 32
14 pin MSReceptacle 42V 10A
pins I & K
At 220V 220V 2A
Receptacle
220VAC RECEPTACLE
A Continental European receptacle is located on the
rear panel for supplying 220VAC to a water cooler.
The receptacle has a protective cover to prevent incidently contact and is a Schuko type. The circuit is protected by a 2 amp circuit breaker also located on the
rear panel. This circuit is electrically isolated from all
other circuits, but on the European Models one line is
connected to chassis ground.
FIGURE A.4 FRONT VIEW OF 14-PIN CONNECTOR
RECEPTACLE
PINLEAD NO.FUNCTION
A-----BGNDChassis Connection
C2Trigger Circuit
D4Trigger Circuit
E77Output Control
F76Output Control
G75Output Control
H21Work Sense Connection
I4142 VAC
J-----K4242 VAC
L-----M-----N------
1
As shipped from the factory Lead #21 from the 14 Pin connector is
connected to “-21” on the terminal strip. This is the configuration
for positive welding. If welding negative polarity, connect lead #21
to the “+21” connection point on the terminal strip.
1
14-PIN MS TYPE RECEPTACLE
(For MS3106A-20-27PX Plug. L.E.C. Part #S12020-32)
Refer to the figure A.4 for the available circuits in the
14 pin receptacle.
42 VAC is available at receptacle pins I and K.
A 10 amp circuit breaker protects this circuit.
Note that the 42 VAC and 115 VAC circuits are electrically isolated from each other. However, one line of
the 115VAC is connected to chassis ground.
DC655e (CE) (RED-D-ARC)
Page 15
A-6
D=2
E=4
F=GND
A
=77
B=76
C=75
6-PIN MS TYPE RECEPTACLE
INSTALLATION
TERMINAL STRIP 2 (T.S.2)
A-6
Refer to figure A.5 for for the available circuits in the
6 -Pin MS type connector.
FIGURE A.5 FRONT VIEW OF 6-PIN CONNECTOR
RECEPTACLE
PINLEAD NO.FUNCTION
A77Output Control
B76Output Control
C75Output Control
D2Trigger Circuit
E4Trigger Circuit
FGNDChassis Connection
Lead No.Function
+21 Work Connection
-21 Work Connection
1
41 42 VAC
4 Trigger Circuit
2 Trigger Circuit
31 115 VAC
32 115 VAC
1
If connecting a feeder cable directly to the terminal strip, Lead #21
from the cable is connected to “-21” on the terminal strip for positive welding. If welding negative polarity, connect lead #21 to the
“+21” connection point on the terminal strip.
TERMINAL STRIPS
Terminal strips are available behind the cover panel
on the lower case front to connect wire feeder control
cables that do not have a 6-Pin and a 14-Pin MS-type
connector. Refer to figure A.3 for the location of this
cover panel. These terminals supply the connections
as shown in the following Terminal Strip charts. See
Auxiliary Power Table for rating of circuit breaker in
115VAC circuit. Remove a plug button from the terminal strip cover and install an appropriate strain relief
clamp for the cable being used. NOTE: There are two
work sense lead connection points on the terminal
strip. Connect both the work sense lead #21 from the
14-Pin connector and #21 lead of the control cable to
“-21” when welding positive polarity or to “+21” when
welding negative polarity.
TERMINAL STRIP 1 (T.S.1)
Lead No.Function
75Output Control
76Output Control
77Output Control
DC655e (CE) (RED-D-ARC)
Page 16
B-1
OPERATION
B-1
SAFETY PRECAUTIONS
Read and understand this entire section before operating the machine.
WARNING
ELECTRIC SHOCK
can kill.
• Do not touch electrically live parts
or electrode with skin or wet
clothing.
The DC655e (CE) is an energy efficient constant voltage DC
power source that produces outstanding arc characteristics
for multiple CV or CC welding processes
This is a European 50/60 Hertz models that is “CE” qualified
and rated for IEC 974-1.
RECOMMENDED PROCESSES AND
EQUIPMENT
The DC655e (CE) is designed for CV or CC processes.
CV processes include: GMAW (MIG) and FCAW (fluxcored) welding, plus the capability of CV submerged
arc welding and air carbon arc gouging. It produces
outstanding welding performance with a single range
full output control knob.
CC processes include stick welding, CC submerged
arc and superior air carbon arc gouging with up to 3/8”
(10 mm) diameter carbons. The same single range full
output control knob is used and paralleling capability
is provided.
The DC655e (CE) is recommended for use with
Lincoln’s DH-10 or LN-10 as well as the LN-7*, LN-7
GMA*,LN-15, LN-742, LN-8*, LN-9*, LN-9 GMA*, LN23P and LN-25 semiautomatic wire feeders. It is also
recommended for use with the NA-3, NA-5 and NA-5R
automatic feeders. “Cold starting” for sub-arc or
across arc “touch-sensing” can be used.
* The 14-pin MS receptacle does not provide 115 VAC
for these feeders; 115 VAC must be obtained from
terminal strip.
Two DC655e (CE) may be paralleled in a “master”
and “slave” interconnection using the K1611-1
Paralleling kit.
Observe additional Safety Guidelines detailed
throughout this manual.
DC655e (CE) (RED-D-ARC)
DESIGN FEATURES AND ADVANTAGES
• Separate output terminals for selecting high or low
inductance as recommended for the welding
process.
• Power on/off switch with pilot light and thermostat
tripped indicator light.
• Full range output voltage (CV mode) and current
(CC mode) control for easy operation.
Page 17
B-2
• Panel switches behind a latched front panel for
remote or local output control, output on or remote
selection, and CC, CV Sub-arc or CV MIG mode
selection.
• Panel knob settable CC arc force control with built-in
adjustable “Hot Start”.
• High efficiency output, and selectable “sleep mode”
idle mode timer which shuts down input power if not
used for extra energy conservation.
• Fan as needed (F.A.N.). Solid state thermally controlled fan operates cooling fan only when required.
Minimizes power consumption, operating noise and
dust intake.
• Hinged cover to protect output terminals and auxiliary connections.
• Electronic and thermostatic protection for current
overload and excessive temperatures.
• 42 VAC, 10 amp auxiliary power available for the
wire feeder; circuit breaker protected.
OPERATION
IEC 974-1
IP-23
B-2
THREE PHASE
Designates welder complies with
International Electrotechnical
Commission requirements 974-1.
Designates the degree of environmental protection provided by
the power sources enclosure.
Constant Current Output
Characteristics
SMAW
SAW
Constant Voltage Output
Characteristics
• 115 VAC, auxiliary power protected by a 15 amp
breaker.
• 220 VAC receptacle for connecting to a water cooler.
Protected by 2 amp breaker.
• MS-type (6-pin) and (14-pin) connections for remote
and wire feeder.
• Optional Field Installed Digital or Analog
Voltmeter/Ammeter kits are available.
• Optional Dual Process Switch for two processes with
polarity change and electrical isolation.
WELDING CAPABILITY
The DC655e (CE) has the following Output and Duty
Cycle based on operation for a 10 minute period:
650 Amps, 44 Volts at 100%
815 Amps, 44 Volts at 60%
GRAPHIC SYMBOLS THAT APPEAR ON
RATING PLATE (LOCATED ON CASE
BACK)
3 Phase transformer with
rectified DC output
INPUT POWER
GMAW
FCAW
Designates welder can be used
S
in environments with increased
hazard of electric shock.
Designates welder complies with
CE
low voltage directive and with
EMC directive.
U
o
U
1
I
1
X
U
2
I
2
Open Circuit Output Voltage
Input Voltage Rating(s)
Input Current Rating(s)
Output Duty Cycle Rating(s)
Output Voltage Rating(s)
Output Current Rating(s)
DC655e (CE) (RED-D-ARC)
Page 18
B-3
DC655e
5
4
8
1
9
2
3
6
7
OPERATION
CONTROLS AND SETTINGS
All operator controls and adjustments are located on the case front of the DC655e (CE). Refer to Figures B.1,
and B.2 and corresponding explanations.
FIGURE B.1 CONTROL PANEL CONTROLS
B-3
1. INPUT POWER ON/OFF SWITCH - This tog-
gle switch turns the machine on or off. Putting the
switch in the ON position energizes the
machine’s input contactor applying input power to
the machine. Switching the switch to the
OFF position de-energizes the input contactor.
This switch is also used to reset a machine shutdown. (See Machine Shutdown section)
2. PILOT LIGHT - When the power switch is in the
ON position the machine’s white pilot light will illuminate. If the input contactor de-energizes the
machine in a shutdown situation the pilot will still
illuminate. In this situation it will be necessary to
reset the machine by switching the power switch to
the OFF then ON position. (See MachineShutdown section)
3. OUTPUT CONTROL - This control provides
continuous control of the machine’s output from
minimum to maximum as it is rotated clockwise.
The CV mode voltage range of control is 13 to 44V.
The CC mode current range of control is 50 to
815A.
DC655e (CE) (RED-D-ARC)
4. OUTPUT TERMINALS ON/REMOTE - When this
switch is in the REMOTE position, the DC655e
(CE) output terminals will be electrically “cold” until
a remote device such as a wire feeder closes the
#2 and #4 circuit in the MS-receptacle or terminal
strip. When this switch is in the ON position the
machine’s output terminals will be electrically energized all the time.
5. LOCAL/REMOTE CONTROL SWITCH - When this
switch is set to the LOCAL position, control of
the output voltage is via the output control on the
DC655e (CE) control panel. When this switch is set
to the REMOTE position, control is through a
remote source such as a wire feeder via the #75,
#76, and #77 leads in the MS-receptacle or terminal
strip.
6. CC STICK/CV SUBARC/CV MIG MODE SWITCH This switch selects the proper welding characteristics for the process being used:
CC Stick
characteristic through the 50 to 815 amp range.
The current is adjusted within this range by the
Output Control dial. The open circuit (no load)
voltage will be about 68 volts in this mode.
provides a constant current output
Page 19
B-4
7
6
5
4
3
1
2
This mode is used for stick welding (SMAW) and
CC air carbon-arc gouging, and employs a “Hot
Start” feature and an Arc Force Control. CC
mode may also be used for CC submerged arc
with appropriate arc-sensing CC(VV) wire feeders if arc force is set high enough. Refer to
Welding Performance Section.
OPERATION
7. ARC FORCE CONTROL - This control is only func-
tional in CC Stick mode. It prevents “stubbing” of
the electrode by providing the extra weld current
that linearly increases as the welding voltage
decreases below a level determined by the setting
of the constant current control.
B-4
CV MIG
characteristic through the 13 to 44 volt range.
The voltage is adjusted within this range by the
Output Control dial.
The dynamic characteristics of this mode are
ideal for open arc processes including,
MIG/MAG (GMAW), Innershield®, and other
cored wire (FCAW) processes. Faster travel
submerged arc processes and CV air carbonarc gouging may also use this mode. Refer to
the Welding Performance Section.
CV Sub-Arc
output control range as CV MIG, but the dynamic characteristics of this mode make possible
improved CV (constant wire speed) submerged
arc welding. This improved process is most
noticeable on high deposition slow travel speed
welds. Fast travel, narrow bead subarc welds
will have better performance in CV MIG mode.
provides a constant voltage output
provides the same constant voltage
FIGURE B.2 LOWER CASE FRONT CONTROLS & CONNECTIONS
The Arc Force control knob, located behind the
latched cover, adjusts arc force from “Min” (no current increase) to “Max” (higher short circuit current).
“Mid” position (#5) is recommended for most CC
welding. Refer to the Welding PerformanceSection.
8. OPTIONAL VOLTMETER & AMMETER - Digital
or analog meter kits are available as field installed
options. Refer to the Accessories Section of this
manual.
9. THERMAL PROTECTION LIGHT - If the
machine overheats due to lack of proper air flow
through the machine or due to exceeding the
machine’s duty cycle, thermostats will disable the
welding output and this light will illuminate. Input
power is still applied to the machine and the cooling
fan will continue to run. When the machine cools
the welding output will resume.
1. 6-PIN MS-RECEPTACLE-This connector provides
easy connection for a remote output control cable.
It provides connections for output switching, remote
output control and ground. Refer to 6-pin MS connector in the Installation Section of this manual for
information about the circuits made avaliable at this
receptacle.
DC655e (CE) (RED-D-ARC)
2. 115VAC CIRCUIT BREAKER - This breaker
protects the 115 VAC auxiliary circuits located in
the terminal strip and 14-Pin MS- receptacle.
Breaker is rated 15 amps.
Page 20
B-5
OPERATION
B-5
3. 42VAC 10 AMP CIRCUIT BREAKER - This
breaker protects the 42VAC auxiliary circuits located in the terminal strip and MS-receptacle.
4. 14-PIN MS-RECEPTACLE - This connector provides easy connection for a wire feeder control
cable. It provides connections for auxiliary power,
output switching, remote output control, wire feeder
voltmeter sense lead and ground. Refer to 14-PinMS Type Receptacle in the Installation Section of
this manual for information about the circuits made
available at this receptacle.
5. TERMINAL STRIP COVER PANEL - Remove this
panel to gain access to the circuits made available
at the terminal strip and the 4-pin receptacle for the
optional paralleling kit. This terminal strip contains
the same circuits as the 14 pin MS-receptacle. The
cover also provides for installation of cable strain
relief clamps.
6. POSITIVE OUTPUT TERMINAL - This output terminal is for connecting a welding cable. To change
welding polarity and for proper welding cable size
refer to Electrode and Work Cables in the
Installation Section of this manual.
7. NEGATIVE OUTPUT TERMINALS - These output
terminals are for connecting a welding cable to
either the High Inductance or Low Inductance
Terminal for desired arc characteristics. (Low inductance is recommended only for NR203Ni 1%). To
change welding polarity and for proper welding
cable size refer to Electrode and Work Cables in
the Installation Section of this manual.
AUXILIARY POWER
42 volt AC auxiliary power, as required for some wire
feeders, is available through the wire feeder receptacle. A 10 amp circuit breaker protects the 42 volt circuit from overloads.
CAUTION
Note that some types of equipment, especially
pumps and large motors, have starting currents
which are significantly higher than their running
current. These higher starting currents may cause
the circuit breaker to open. If this situation occurs,
the user should refrain from using the DC655e
(CE) auxiliary power for that equipment.
The machine’s cooling fan remains off when the temperature of the rectifiers and windings inside the
machine are below that requiring air flow cooling, as
determined by electronic monitoring of several thermal
sensors and the welding current of the machine. The
fan may remain off until welding begins, but once the
fan is activated, it will remain on for at least 5 minutes
to assure proper cooling. This feature saves energy
and also minimizes the amount of dirt and other air
borne particles being drawn into the machine.
CASE BACK CONNECTIONS
220VAC AUXILIARY RECEPTACLE
This receptacle provides up to 2 amps of 220VAC
auxiliary power for a water cooler.
220VAC 2 AMP CIRCUIT BREAKER
This breaker protects the 220VAC auxiliary circuit
located in the 220VAC receptacle.
DC655e (CE) (RED-D-ARC)
FAN MOTOR FUSE
A 10 amp slow blow fuse protects the fan motor circuit. This fuse is located inside the DC655e (CE)
mounted on the fan motor bracket.
MACHINE SHUTDOWN
The DC655e (CE) provides shutdown modes for thermal over-heating, excessive load currents and faults.
It also provides an idle timer shutdown feature for
additional operating economy.
Page 21
B-6
1234
Switch #2 Time selection
(UP=2 hours, Down=1/2 hour)
Switch #1 Timer On/Off
(UP=ON, Down=OFF)
DIP Switch
See Weld Performance section
for use of switch #3 and #4.
Note:
OPERATION
B-6
THERMAL SHUTDOWN
This welder has thermostatic protection from excessive duty cycles, overloads, loss of cooling, and high
ambient temperature. When the welder is subjected to
an overload or loss of cooling, a thermostat will open.
This condition will be indicated by the illumination of
the yellow Thermostatic Protection Light on the case
front (see figure B.1). The fan will continue to run to
cool the power source. No welding is possible until the
machine is allowed to cool and the Thermostatic
Protection Light goes out.
OVER CURRENT PROTECTION
SHUTDOWN
Average Current Shutdown
To protect the SCR’s, the DC655e (CE) will shut down
to essentially no output if the output current averages
over 900 amps for about 5-6 seconds, and in less
than 0.3 seconds if averaging over 1200 amps (shorter time for higher current). Control PC board LED4,
shutdown light, will turn on.
This average current shut down can only be reset by
opening the feeder gun trigger, or switching the
DC655e (CE) Output/Remote switch out of the “on”
position.
Peak Current Shutdown
To protect the SCR;s, the DC655e (CE) will shut down
immediately to essentially no output if the peak output
current exceeds 2500 amps (about 1800A average).
Control PC board LED4, shutdown light, will turn on.
This peak current shut down can be reset by turning
the DC655e (CE) input power off, then on.
REMOTE CONTROL LEADS FAULT
PROTECTION SHUTDOWN
The remote control leads from the MS Type receptacles or terminal strip are protected against high voltage faults to the electrode circuit or auxiliary voltage
supplies. If such a fault occurs the DC655e (CE) will
shut down the input primary voltage to the transformer
to prevent the fault output. Control PC board LED3,
input shutdown light, turns on.
SHORTED RECTIFIER FAULT
PROTECTION
If a short occurs across one of the silicon controlled
rectifiers of the DC655e (CE), a potentially hazardous
AC voltage could appear across the welding output
terminals, even in idle mode when no output should
be present. If such a fault occurs the DC655e (CE)
will shut down the input primary voltage to the transformer to prevent the fault output. Control PC board
LED3, input shutdown light, turns on.
If this input shutdown occurs the input power pilot light
remains lit, since the power switch is ON and control
power is still present. Welding output or auxiliary supply output will not be present
This input shut down is reset by turning the DC655e
(CE) input power off, then on. If the fault is not corrected however, the shutdown will re-occur when turning on the input power.
IDLE SHUT DOWN TIMER
For additional operating economy, the DC655e (CE)
can be set up to automatically shut off the primary
input power to the main transformer after a selectable
time (1/2 or 2 hr.) has expired without welding. The
unexpired timer is reset with each weld.
The idle mode timer is activated by setting Switch #1
(left most) of the DIP Switch located on the lower-center of the DC655e (CE) Control PC board. from the
down (Off) position to the up (On) position. Setting
Switch #2 of the DIP switch to up (On) sets the shutdown time to 2 hours. Setting Switch #2 of the DIP
switch to down (Off) sets the shutdown time to 1/2
hour. Shut down is reset by turning the DC655e (CE)
input power off, then on.
If this input shutdown occurs the input power pilot light
remains lit, since the power switch is ON and control
power is still present. Welding output or auxiliary supply output will not be present
This input shut down is reset by turning the DC655e
(CE) input power off, then on. If the fault is not corrected however, the shutdown will re-occur when turning on the input power.
WELDING PERFORMANCE
LOW INDUCTANCE TERMINAL
The inside right Negative (-) terminal is lower choke
inductance and presently is only recommended for
welding with NR203Ni 1% procedures. All other
processes are to be welded using the outside right
Negative (-) terminal with higher choke inductance.
DC655e (CE) (RED-D-ARC)
Page 22
B-7
V
OLTS
AMPS
CV OUTPUT
"HI" Current Limit
"Lo" Current Limit
High
Setting
Low
Setting
VOLTS
AMPS
CC OUTPUT
Min. Arc Force
Hot Start
OCV
Low
Setting
Hi
Setting
Max. Arc Force
1234
Switch #4 "Hi"CV Current
Limit (as shown)
Switch #3 is for test
p
urposes and is to
be down
DIP Switch
See Machine Shutdown section
for use of switch #1 and #2.
Note:
CC Hot Start
Trimmer
DC655e Control PC Board
OPERATION
B-7
CV MODE CURRENT-LIMITING
CV MIG and CV Sub-Arc modes employ electronic
current limiting to limit excessive short circuit output
current which can result in undesirable arc characteristics or nuisance over current protection shutdown
(see Machine Protection section).
As shipped, the DC655e (CE) is set for “Hi” current
limiting, which maintains constant voltage until the
welding current exceeds a level proportional to the
voltage setting, then falls off linearly at about 10 volts
per 100 amps to a limited short circuit current. “Lo”
current limiting provides the same short circuit current,
but the arc voltage begins to linearly fall off at lower
current, at about 5 volts per 100 amps.
“Hi” is recommended for all CV processes, especially
for CV subarc and CV arc gouging, but “Lo” tends to
“soften” the arc more when welding NR203Ni 1% on
the Low Inductance (-) terminal. If “Lo” is desired,
switch #4(right-most) of the DIP switch located on the
lower-center of the DC655e (CE) Control PC board
needs to be switched from up (Hi) position to down
(Lo) position.
A general guideline for CC welding is to set Arc Force
to “Mid” position (#5) and increase (typically no more
than to #7) as necessary to prevent “stubbing” or
“pop-outs” while welding. This higher Arc Force is reccommended espicially for low end 6010 stick welding.
CC MODE HOT START
Hot start is built-in for CC mode stick and carbon arc
starting. Hot Start provides an extra weld current
“boost” at the arc strike which increases with higher
current settings. This Hot Start level exponentially
decays to the weld current setting in a few seconds.
Adjustment of the Hot Start shouldn’t be necessary,
but an unsealed trimmer (R81) is provided on the
DC655e (CE) Control PC Board to adjust hot start.
Full counter-clockwise adjustment will reduce Hot
Start to zero.
CC MODE ARC FORCE
Arc Force provides extra weld current which linearly
increases as the welding voltage decreases below a
level determined by the constant current setting. The
Arc Force control knob, located behind the latched
cover, adjust Arc Force from “Min” (no current
increase) to “Max” (about 9A/V increase).
CC MODE ARC GOUGING
The DC655e (CE) is rated for air carbon arc gouging
with up to 3/8” (10mm) diameter carbons. CC mode
gouging is often preferred over CV mode for cutting
control, but some Arc Force may be required to avoid
carbon stubbing.
DC655e (CE) (RED-D-ARC)
Page 23
C-1
ACCESSORIES
C-1
The DC655e (CE) can be used to power
any of the following Lincoln Wire feeders:
SEMI-AUTOMATIC WIRE FEEDERS
•LN-15
•DH-10•LN-9*
•LN-10•LN-9 GMA*
•LN-7 GMA*•LN-23P
•LN-742•LN-25
•LN-7*•LN-8*
AUTOMATIC WIRE FEEDERS*
•NA-3•NA-5R
•NA-5 •LT-7 Tractor
* 115VAC for these feeders provided at the terminal strip (TS2)
FIELD INSTALLED OPTIONS
K1482-1 Digital Ammeter/Voltmeter Kit - Installs
easily to the front control panel and provides digital
display of actual welding voltage and amperage while
welding. (Installation instructions are included with the
kit).
K1483-1 Analog Ammeter/Voltmeter Kit - Installs
easily to the front control panel and provides analog
display of actual welding voltage and amperage while
welding. (Installation instructions are included with the
kit).
K1485-1 Cable Hanger Bracket - Mounts over standard lift bale of the DC655e (CE) and provides a cable
hanger on both sides of the power source, each side
capable of holding up to 100 ft. of weld cable.
(Installation instructions are included with the kit).
K1486-1 Air Filter Kit - Removable metal filter easily
slides in and out of a bracket which mounts to the
front of the DC655e (CE). Filter is designed to trap
80% of entering particles which are 5 microns, or larger, in size. (Installation instructions are included with
the kit). Cannot be used with K1528-1 Dual process
switch.
NOTE: A dirty air filter may cause the thermal protection of the DC655e (CE) to prematurely activate.
Remove and blow out, or wash and dry, the filter
every two months, or less if in extremely dirty conditions. Replace if necessary.
Undercarriage (K817P, K842) - The DC655e (CE) is
designed for use with the Lincoln K817P or K842
Undercarriage. Complete installation instructions are
included with each undercarriage. When any of the
undercarriages are installed, the DC655e (CE) lift bail
is no longer functional. Do not attempt to lift the
machine with the undercarriage attached. The undercarriage is designed for moving the machine by hand
only. Mechanized towing can lead to injury and /or
damage to the DC655e (CE).
REMOTE OUTPUT CONTROL
(K775 or K857)
An optional “remote output control” is available. This is
the same remote control that is used on other Lincoln
power sources (K775). The K775 consists of a control
box with 28 ft (8.5m) of four conductor cable. This connects to terminals 75, 76, and 77 on the terminal strip
and the case grounding screw so marked with the symbol on the machine. These terminals are located
behind the cover panel on the lower connection panel of
the DC655e (CE). This control will give the same control
as the output control on the
The K857 has a 6-pin MS-style connector which connects to the 6-pin connector on the
K1528-1 Dual Process Switch - (Cannot be used
with K1486-1 Air Filter Kit) The Dual-Process Switch
mounts easily to the front of the machine and is
designed to provide a selection between left and right
side output terminals. Each pair of output terminals
can be switched to either the DC655e (CE), high or
low inductance terminals as desired. Wire feed unit
cables and air carbon arc cables can be connected to
either or both sides of the box and with proper connection can provide polarity change with just a switch
change. Selecting one side only energizes those output studs and opens the other side. Installation
instructions are included with the switch.)
K1611-1 Paralleling Kit - Provides interconnection of
two DC655e (CE) machines in parallel for doubling
the current capacity of one machine. This “master”
and “slave” conection configuration allows the “master” to control the balanced output of both machines.
Individual protection circuits of both machines function
normally. (Installation instructions are included with
the switch.)
machine.
DC655e (CE)
.
DC655e (CE) (RED-D-ARC)
Page 24
D-1
MAINTENANCE
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this maintenance.
• Turn the input power OFF at the disconnect
switch or fuse box before working on this
equipment.
1. The fan motor has sealed bearings which require
no service.
D-1
2. In extremely dusty locations, dirt may restrict the
cooling air causing the welder to run hot with premature tripping of thermal protection. Blow out the
welder with low pressure air at regular intervals to
eliminate excessive dirt and dust build-up on internal parts.
3. Periodically check the welding cables. Inspect for
any slits or punctures. Also make sure that all connections are tight.
DC655e (CE) (RED-D-ARC)
Page 25
E-1
TROUBLESHOOTING
HOW TO USE TROUBLESHOOTING GUIDE
WARNING
Service and Repair should only be performed by Factory Trained Personnel. Unauthorized repairs
performed on this equipment may result in danger to the technician and machine operator and will
invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all
safety notes and precautions detailed throughout this manual.
This Troubleshooting Guide is provided to help you
locate and repair possible machine malfunctions.
Simply follow the three-step procedure listed below.
Step 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 Authorized Field Service Facility.
If you do not understand or are unable to perform the
Recommended Course of Action safely, contact your
local Authorized Field Service Facility.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 26
E-2
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-2
PROBLEMS
(SYMPTOMS)
Input contactor (CR1) chatters.
Machine input contactor does not
operate.
POSSIBLE
CAUSE
PROBLEMS
1. Faulty input contactor (CR1).
2. Low line voltage.
If Power Pilot light is off:
1. Make sure the proper threephase input power is applied to
the DC655e (CE) machine.
2. The power switch (SW1) may be
faulty.
3. The pilot transformer may be
faulty.
If Power Pilot light is on:
1. The input contactor may be
faulty.
2. Input shutdown may be activated
(LED3 on on Control Board). See
Shorted Rectifier Fault
Protection in Operation Section.
RECOMMENDED
COURSE OF ACTION
Contact your Local Authorized Field
Service Facilityfor technical
troubleshooting assistance.
Machine input contactor operates,
but no output when trying to weld.
1. Electrode or work cables may be
loose or broken.
2. Firing P.C. board is not connected
or is faulty. See PC board LED
information.
3. Trigger circuit may not be working.
Place Output Terminals Switch to
the ON position, or place a jumper
wire across #2 and #4 on the terminal strip. If output is enabled
then check control cable to feeder
if connected.
4. If the thermal protection light is
ON the machine is overheated.
Make sure the fan is operating
and remove the cause of the
overheating problem.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 27
E-3
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-3
PROBLEMS
(SYMPTOMS)
Machine has output, but no control.
Machine does not have maximum
output.
POSSIBLE
CAUSE
PROBLEMS
1. Check the Local/Remote output
switch (SW3) and associated
leads. See wiring diagram.
2. Make sure the remote control
leads #75, #76 and /or #77 are
NOT grounded to either welding
output.
3. Make sure control cable to feeder
(if used) is connected properly.
4. The output control potentiometer
may be faulty.
5. The control or firing board may
be faulty.
1. Make sure the correct threephase input is applied to the
DC655e (CE) machine.
2. The output control potentiometer
may be faulty.
RECOMMENDED
COURSE OF ACTION
Contact your Local Authorized Field
Service Facilityfor technical
troubleshooting assistance.
3. The control or firing board may
be faulty.
Poor arc striking with semiautomatic
or automatic wire feeders.
1. Make sure the mode switch is in
the proper position for the
process.
2. Make sure the welding cables
and connections are secure.
3. Check for correct welding porcedures.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 28
E-4
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-4
PROBLEMS
(SYMPTOMS)
Variable or sluggish welding arc.
Output Control Pot not functioning in
“Local” control only.
POSSIBLE
CAUSE
PROBLEMS
1. Make sure the mode switch is in
the proper position for the
process.
2. Make sure the welding cables are
sized correctly and the connections are tight.
3. Make sure the welding proce-
dures are correct.
1. Check the Local/Remote control
switch and associated leads.
See wiring diagram.
2. The machine output control
potentiometer may be faulty.
Also check associated leads.
See wiring diagram.
RECOMMENDED
COURSE OF ACTION
No output control in “Remote” control
only.
1. Output Control Switch in wrong
position.
2. Faulty Output Control Switch.
3. Faulty Remote Control Pot.
4. Leads or connections open in con-
trol circuit. (#75, #76, #77)
Contact your Local Authorized FieldService Facilityfor technical
troubleshooting assistance.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 29
E-5
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-5
PROBLEMS
(SYMPTOMS)
Machine will not weld. OCV is less
than 1 volt.
The wire feeder will not come on.
Poor arc characteristics.
POSSIBLE
CAUSE
PROBLEMS
1. The machine may be in a overload condition. Refer to MachineProtection in the operation section.
2. See the PC board LED information.
1. Either the 42VAC or the 115VAC
circuit breakers may be tripped.
Reset if necessary.
2. Check for the presence of the
required voltage to operate the
wire feeder.
3. The control cable or wire feeder
may be faulty.
1. The negative welding cable may
be connected to the wrong inductance tap.
2. Make sure the mode switch is in
the proper position for the
process.
RECOMMENDED
COURSE OF ACTION
Contact your Local Authorized Field
Service Facilityfor technical
troubleshooting assistance.
3. The control board may be faulty.
See PC board LED information.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 30
E-6
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-6
PROBLEMS
(SYMPTOMS)
Thermal Protection Light comes ON
and fan does not run.
NOTE: Fan is thermal controlled and
does not continuously run when
machine is powered up.
Fan runs continuously.
POSSIBLE
CAUSE
PROBLEMS
1. Check for obstructions that could
prevent the fan from turning.
2. Check the fan control circuit. See
wiring diagram.
3. The fan motor may be faulty.
4. The Thermal Fan/Snubber PC
board may be faulty. See PC
board LED information.
1. The Thermal Fan Thermistor may
be faulty. See wiring diagram.
2. The Thermal Fan/Snubber PC
board may be faulty. See PC
board LED information.
RECOMMENDED
COURSE OF ACTION
One or both Digital Meters not lighting.
Digital Voltmeter not working properly or erratic display.
1. The meters may not be receiving
the voltages from the auxiliary
transformer. Check plug P13.
See wiring diagram.
2. The Digital meter PC board may
be faulty.
1. Meter may not be receiving auxil-
iary or sensing voltages. Make
sure plug P12 & P13 are securely
plugged into the Digital meter PC
board and also plug P3 is securely
plugged into the control board.
2. The may be an open in the volt-
age feedback circuit. See wiring
diagram.
3. The Digital meter PC board may
be faulty.
Contact your Local Authorized FieldService Facilityfor technical
troubleshooting assistance.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 31
E-7
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-7
PROBLEMS
(SYMPTOMS)
Digital Ammeter not working proper-
ly or erratic display.
Analog Meters not reading, or not
reading correctly.
POSSIBLE
CAUSE
PROBLEMS
1. The meter PC board may not be
receiving the auxiliary or sensing
voltages. Check plug P3 and
plugs P12 & P13. See wiring
diagram.
2. The current feedback circuit may
be faulty. From the shunt to the
control board. See wiring diagram.
3. The Digital meter PC board may
be faulty.
1. The meters may not be receiving
voltage or current feedback signals. Make sure plug P3 is
securely plugged in the control
board and plug J14 (in-line connector) is securely seated in the
plug assembly from the control
board.
2. Check the current feedback and
voltage feedback circuits. See
wiring diagram.
RECOMMENDED
COURSE OF ACTION
Contact your Local Authorized Field
Service Facilityfor technical
troubleshooting assistance.
3. The meter(s) may be defective.
220VAC receptacle not working.
1. Check the circuit breaker. Reset
if necessary.
2. Check for broken or loose connections in the 220VAC circuit.
See wiring diagram.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 32
E-8
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-8
PC BOARD
1. All 10 LED’s must be ON when the POWER SOURCE is turned ON and the wire feeder’s trigger is closed, or
a jumper is placed between 2 & 4, or the “OUTPUT TERMINALS SWITCH” is in the ON position.
2. LED’s 7, 8, and 9 indicate AC power being supplied to the P.C. board from auxiliary windings (T1). If a light is
not on, turn the machine off and unplug P5 from the firing board. Turn the machine back on and check the following voltages:
Light that was offCheck AC voltage betweenVoltage should be approximately
3. If all voltages are present, turn power off, and plug P5 back into J5. Turn power back on. If LED’s are still out,
replace firing PCB.
4. If voltages were not present then check the wiring back to the auxiliary windings for a possible open.
5. LED’s 1 through 6 indicate gate signals are being sent to the main SCR’s 1 through 6 respectively If LED5 is
on (CONTROL BOARD), along with LED7, 8, and 9 on firing PCB, and LED’s 1 through 6 are not on, check to
make sure lead 231 between control board and firing board is not broken.
6. If any one of LED 1 through 6 are not on and LED’s 7,8, and 9 are on, replace the firing PCB.
1. LED1 indicates that the CC mode switch is closed. When the CC mode switch closed LED6 should also illu-
minate. See LED6.
2. LED2 indicates that there is feedback voltage present in CV mode.
3. LED3 indicate an input shutdown. Refer to Remote Control Leads Fault Protection Shutdown and
Shorted Rectifier Fault Protection or Idle Shut Down Timer in the Operation section.
4. LED4 indicates an over current fault shutdown. Refer to Overcurrent Protection Shutdown in the
Operation Section.
5. LED5 Indicates Output Current should be present.
6. LED6 indicates that the machine is in CC mode. This LED should light whenever LED1 lights. If not the
Control PC Board may be faulty.
7. LED7 +16V power supply
8. LED8 indicates the Control PC Board is signalling the Firing PC Board to fire the SCRs.
9. LED9 -10V power supply
10. LED10 indicates that 42V input is present to the Control PC Board
11. LED11 indicates that there is feedback voltage present in CC mode.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 33
E-9
TROUBLESHOOTING
Observe all Safety Guidelines detailed througout this manual
E-9
PC BOARD
TROUBLESHOOTING GUIDE - THERMAL FAN/ SNUBBER P.C.
BOARD
NOTE:
1. LED1 when ON indicates fan should be running. If ON and machine is cold, replace PCB.
2. LED2 when ON indicates welding current greater than 50 amps. If ON and not drawing more than 40 amps,
3. LED3 when ON indicates Main SCR’S need cooling and turns fan ON. If ON and machine is cold, replace
4. LED4 when ON indicates an open Thermal Fan Thermistor, or open connection to PCB. Fan will run constant-
5. LED5 when ON indicates an open thermostat. Thermal Protection light should also be ON. If Thermal
6. LED6 when ON indicates fan should be running. LED6 will be ON whenever LED’s 2, 3 4 or 5 is ON. If LED’s
Fan will run for minimum of 5 minutes once fan turns on.
replace PCB.
PCB.
ly. Check Thermal Fan Thermistor for an open. If open replace. If not open Replace PCB.
Protection light is not ON, and LED5 is ON, replace PCB.
2, 3, 4, or 5 are not ON when LED6 is ON, replace PCB.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
DC655e (CE) (RED-D-ARC)
Page 34
F-1
N.C. Tape up bolted connection if lead #21 is extended.
N.D. Connect the control cable ground lead to the frame terminal
marked near the power source terminal strip. The power
source grounding terminal (marked and located near the power
source input power connections) must be properly connected to
electrical ground per the power source operating manual.
N.E. If an optional remote voltage control is used, connect it to
this terminal strip.
N.A. Welding cables must be of proper capacity for the current and
duty cycle of immediate and future applications. See LN-7
Operating Manual for proper sizes.
N.B. If LN-7 is equipped with a meter kit, extend LN-7 control cable
suitable for the installation. An S16586-[LENGTH] remote
voltage sensing work lead may be ordered for this purpose.
Connect it directly to the work piece independent of the welding
work cable connection. For convenience, this extended #21 lead
should be taped to the welding work lead. (If the length of
welding work cable is short, less than 25 feet, and connections
can be expected to be reliable, then control cable lead #21 does
not need to be extended and can be directly connected to
terminal #21 on the terminal strip. Note that this is not the
preferred connection because it adds error to the LN-7 voltmeter
Above diagram shows electrode connected positive. To change polarity,
turn power off, reverse the electrode and work leads at the power
41
4 2 31
32
75 76
77
NEGATIVE
POSITIVE
32
31
2
4
GND
21
N.A.
N.D.
ELECTRODE CABLE
TO WIRE FE ED UNIT
TO WORK
POWER SOURCE
N.E.
N.F.
reading.)
N.F.
If lead #21 is to be connected to
the terminal strip,
connect to the #21 terminal that matches
work polarity. This
connection must be changed whenever the
electrode polarity is
changed.
Only qualified pe rsons should install, use or
service this mach ine.
Do not operate wi th covers removed.
Disconnect power source before
servicing.
Do not touch elec trically live parts.
LN-7 TO IN PUT
CABLE PLUG
LN-7 CONTROL
CABLE
21
-
21
FOR CONTROL CABLE
WITH 14 PIN
MS-TYPE
PLUG CONNECTOR
OR
FOR CONTROL CABLE
WITH TERMINAL STRIP
LEAD CONNECTORS
CONTROL CABLE
S22976
source and position the switch on wire feeder (if equipped )
to proper polarity. Also refer to note N.F.
N.B. & N.C.
14-PIN
RECEPTACLE
lead #21 from control cable with terminal strip connectors or from
14-pin receptacle using #14 AWG or larger insulated wire physically
21
+
REMOTE VOLTAGE SENSING LEAD
10-30- 98F
N.G.
N.G. Illustration does not necessarily represent actual position of
for more information.
CONNECTION OF LN-7 TO THE DC655e (CE) POWER SOURCE
appropriate output studs. Refer to power source operating manual
For proper setting of switches on power source,
see power source operating manual.
DIAGRAMS
F-1
DC655e (CE) (RED-D-ARC)
Page 35
F-2
N.C. Tape up bolted connection if lead #21 is extended.
N.D. Connect the control cable ground lead to the frame terminal
marked near the power source terminal strip. The power
source grounding terminal (marked and located near the power
source input power connections) must be properly connected to
electrical ground per the power source operating manual.
N.A. Welding cables must be of proper capacity for the current and
Above diagram shows electrode connected positive. To change polarity,
turn power off, reverse the electrode and work leads at the power
NEGATIVE
POSITIVE
32
31
2
4
GND
21
N.A.
N.D.
ELECTRODE CABLE
TO WIRE FE ED UNIT
TO WORK
POWER SOURCE
N.E.
Only qualified persons should install, use or
service this m achine.
Do not operate with covers removed.
Disconnect pow er source before
servicing.
Do not touch e lectrically live par ts.
CABLE
21
FOR CONTROL CABLE
WITH 14 PIN
MS-TYPE
PLUG CONNECTOR
OR
FOR CONTROL CABLE
WITH TERMINAL STRIP
LEAD CONNECTORS
CONTROL CABLE
S22977
source and position the switch on wire feeder (if equipped )
to proper polarity. Also refer to note N.F.
N.B. & N.C.
14-PIN
RECEPTACLE
A
B
C
N.E. If using an older LN-8 control cable: connect lead #75 to #75 on
terminal strip, connect lead #76 to #76 on terminal strip, connect
lead #77 to #77 on the terminal strip.
the #21 terminal that matches work polarity. This connection must be
changed whenever the electrode polarity is changed.
N.G. If lead #21 is to be connected to the terminal strip, connect to
N.F. The LN-9 voltage control jumpers must be connected as follows
(refer to LN-9 Operating Manual):
White jumper on voltage board to pin "S" .
Blue jumper on voltage board (later units only),
or on start board (earlier units), to pin "B".
remote voltage sensing work lead may be ordered for this purpose.
N.B. Extend lead #21 from control cable with terminal strip connectors or
from 14-pin receptacle using #14 AWG or larger insulated wire
duty cycle of immediate and future applications.
Connect it directly to the work piece keeping it electrically
convenience, this extended #21 lead should be taped to the
welding work lead. (If the length of work lead circuit is
short, and connections can be expected to be reliable, then
control cable lead #21 does not need to be extended and can be
directly connected to terminal #21 on the terminal strip. Note
that this is not the preferred connection because it adds error
separate from the welding work lead circuit and connection. For
to the wire feeder voltmeter reading.)
physically suitable for the installation. An S16586-[LENGTH]
TO LN-8 OR LN-9
CONTROL
N.F.
INPUT CABLE PLUG
41
4 2 31
32
75 76
77
N.E.
N.G.
21
-
21
+
REMOTE VOLTAGE SENSING LEAD
10-30- 98F
N.H. Illustration does not necessarily represent actual position of appropriate
output studs. Refer to power source instruction manual for more info.
N.H.
CONNECTION OF LN-8 OR LN-9 TO THE DC655e (CE) POWER SOURCE
For proper setting of switches on power source,
see power source operating manual.
DIAGRAMS
F-2
DC655e (CE) (RED-D-ARC)
Page 36
F-3
Above diagram shows electrode connected positive. To change polarity,
turn power off, reverse the electrode and work leads at the power
NEGATIVE
POSITIVE
32
31
2
4
GND
21
N.A.
N.D.
ELECTRODE CABLE
TO WORK
POWER SOURCE
Only qualified persons should install, use or
service this m achine.
Do not operate with covers removed.
Disconnect pow er source before
servicing.
Do not touch e lectrically live par ts.
CONTROL B OX
21
FOR CONTROL CABLE
WITH 14 PIN MS-TYPE
PLUG CONNECTOR
OR
FOR CONTROL CABLE
WITH TERMINAL STRIP
LEAD CONNECTORS
CONTROL CABLE
S22978
N.B. & N.C.
14-PIN
RECEPTACLE
75
76
77
remote voltage sensing work lead may be ordered for this purpose.
If lead #21 is to be connected to
the terminal strip,
connect to the #21 terminal that matches
work polarity. This
connection must be changed whenever the
electrode polarity is
changed.
N.A. Welding cables must be of proper capacity for the current and
duty cycle of immediate and future applications.
Connect it directly to the work piece keeping it electrically
separate form the welding work lead circuit and connection. For
convenience, this extended #21 lead should be taped to the
welding work lead. (If the length of work lead circuit is
short, and connections can be expected to be reliable, then
control cable lead #21 does not need to be extended and can be
directly connected to terminal #21 on the terminal strip. Note
that this is not the preferred connection because it adds error
N.D. Connect the control cable ground lead to the frame terminal
marked near the power source terminal strip. The power
source grounding terminal (marked and located near the power
source input power connections) must be properly connected to
electrical ground per the power source operating manual.
to the wire feeder voltmeter reading.)
N.F.
source.
Reverse the leads on the back of the ammeter and voltmeter
in the automatic control box.
Also refer to note N.F.
TO AUTOMATIC
EQUIPMENT
TO AUTOMATIC
CONTROL CA BLE
physically suitable for the installation. An S16586-[LENGTH]
41
4 2 31
32
75 76
77
N.F.
21
-
21
+
REMOTE VOLTAGE SENSING LEAD
N.C. Tape up bolted connection if lead #21 is extended.
N.E. If a variable voltage board is present in the automatic controls,
the jumper lead on the VV board must be connected to pin "L" to
permit the inch down button to operate. This jumper, however,
will disable the cold starting/autostop feature of the automatic
controls, permitting only hot starting techniques to be used.
or from 14-pin receptacle using #14 AWG or larger insulated wire
N.B. Extend lead #21 from control cable with terminal strip connectors
10-30- 98F
N.G.
Illustration does not necessarily represent actual position of
manual for more information.
N.G.
CONNECTION OF NA-3, LT-5 OR LT-7 TO THE DC655e (CE) POWER SOURCE
appropriate output studs. Refer to power source operating
For proper setting of switches on power source,
see power source operating manual.
DIAGRAMS
F-3
DC655e (CE) (RED-D-ARC)
Page 37
F-4
NEGATIVE
POSITIVE
32
31
2
4
GND
21
N.A.
N.D.
TO WORK
POWER SOURCE
Only qualified perso ns should install, use or
service this machine.
Do not operate with covers removed.
Disconnect power source before
servicing.
Do not touch electrically live parts.
21
FOR CONTROL CABLE
WITH 14 PIN
MS-TYPE
PLUG CONNECTOR
OR
FOR CONTROL CABLE
WITH TERMINAL STRIP
LEAD CONNECTORS
CONTROL CABLE
S22979
N.B. & N.C.
14-PIN
RECEPTACLE
A
B
C
remote voltage sensing work lead may be ordered for this purpose.
N.A. Welding cables must be of proper capacity for the current and
duty cycle of immediate and future applications.
Connect red jumper to pin "S".
Connect white jumper to pin "B".
Above diagram shows electrode connected positive. To change polarity,
N.F.
If lead #21 is to be connected to
follows:
N.D. Connect the control cable ground lead to the frame terminal
marked near the power source terminal strip. The power
source grounding terminal (marked and located near the power
source input power connections) must be properly connected to
electrical ground per the power source operating manual.
Connect it directly to the work piece keeping it electrically
convenience, this extended #21 lead should be taped to the
welding work lead. (If the length of work lead circuit is
short, and connections can be expected to be reliable, then
control cable lead #21 does not need to be extended and can be
directly connected to terminal #21 on the terminal strip. Note
that this is not the preferred connection because it adds error
turn power off, reverse the electrode and work leads at the power source.
physically suitable for the installation. An S16586-[LENGTH]
N.D. & N.F.
INPUT CABLE PLUG
CONTROL CA BLE
41
4 2 31
32
75 7 6
77
N.F.
21
-
21
+
REMOTE VOLTAGE SENSING LEAD
TO NA-5/-5 R
BOLT TO CAB LES FRO M NA-5/ -5R
WIRE CONTACT AS'BLY
box polarity connections. Also refer to note N.F.
Refer to NA-5 or NA-5R Operating Manual for required NA-5 or NA-5R control
FOR ADDITIONAL INSTALLATION INSTRUCTIONS, SEE NA-5 OR NA-5R OPERATING MANUAL.
or from 14-pin receptacle using #14 AWG or larger insulated wire
N.B. Extend lead #21 from control cable with terminal strip connectors
separate from the welding work lead circuit and connection. For
to the NA-5/-5R voltmeter reading.)
N.E. The jumpers on the NA-5/-5R voltage board must be connected as
NA-5/-5R control box.
N.C. Tape up bolted connection if lead #21 is extended.
the terminal strip, connect
When using NA-5/-5R controls above Code 8300, the NA-5/-5R Inch Down
button will not operate unless a jumper is connected between the two
tab terminals, labeled "AUTO", located above the transformer on the
NA-5/-5R Voltage P.C. board. This jumper, however, will disable the
permitting only Hot Starting techniques to be used.
Cold Starting/Auto-Stop/Touching-Work feature of the NA-5/-5R,
10-30- 98F
N.H. Illustration does not necessarily represent actual position of
for more information.
to the #21
terminal that matches work polarity. This connection
must be changed
whenever the electrode polarity is changed.
N.G. For proper NA-5/-5R operation, the electrode cables must be
snugged under
the clamp bar on the left side of the
N.H.
CONNECTION OF NA-5/-5R TO THE DC655e (CE) POWER SOURCE
appropriate output studs. Refer to power source operating manual
For proper setting of switches on power source,
see power source operating manual.
DIAGRAMS
F-4
DC655e (CE) (RED-D-ARC)
Page 38
F-5
S22980
ELECTRODE CABLE
-
+
14 PIN
AMPHENOL
POWER SOURCE
TO WORK
AND 14-PIN CABLE PLUG, REAR VIEW
AND 14-PIN CABLE PLUG, FRONT VIEW
K=42
I=41
H=21
D=4
C=2
PIN
B
C
D
E
F
75
76
77
4
2
LEAD
42V AC
42V AC
TRIGGER CIRCUIT
(SEE APPROPRIATE WIRING DIAGRAM)
FUNCTION
FUNCTIONS ARE LISTED FOR REFERENCE
ONLY AND EACH MAY OR MAY NOT BE
PRESENT IN YOUR EQUIPMENT.
14-SOCKET BOX RECEPTACLE, FRONT VIEW
14-SOCKET BOX RECEPTACLE, REAR VIEW
N.C. PINS NOT LISTED ARE NOT CONNECTED
ON CABLE.
N.A. WELDING CABLE MUST BE SIZED FOR CURRENT
AND DUTY CYCLE OF APPLICATION.
G
21
H
41
I
42
J
M
F=76
E=77
G=75
N
L
A
B=GND
K=42
I=41
H=21
D=4
C=2
J
M
F=76
E=77
G=75
N
L
A
B=GND
9 PIN
AMPHENOL
K
GND
CHASSIS CONNECTION
WORK
OUTPUT CONTROL
OUTPUT CONTROL
OUTPUT CONTROL
TRIGGER CIRCUIT
Only qualified pe rsons should install, use or
service this machine.
Do not operate with covers removed.
Disconnect power source before
servicing.
Do not touch electrically live parts.
N.D. IF LEAD #21 IS TO BE CONNECTED TO THE
TERMINAL STRIP, CONNECT TO THE #21
TERMINAL THAT MATCHES WORK POLARITY.
THIS CONNECTION MUST BE CHANGED WHENEVER
THE ELECTRODE POLARITY IS CHANGED.
10-30- 98F
N.E.
N.E. ILLUSTRATION DOES NOT NECESSARILY REPRESENT
ACTUAL POSITION OF APPROPRIATE OUTPUT STUDS.
MORE INFORMATION.
CONNECTION OF DH-10 OR LN-10 TO POWER SOURCE WITH 14 PIN AMPHENOL
REFER TO POWER SOURCE OPERATING MANUAL FOR
LINCOLN
WIRE
FEEDER
WIRE FEEDER
INPUT CABLE
ASSEMBLY
N.B. DIAGRAM SHOWS ELECTRODE POSITIVE. TO
CHANGE POLARITY, TURN POWER "OFF",
REVERSE ELECTRODE AND WORK CABLES AT
POWER SOURCE.
FOR PROPER SETTINGS OF SWITCHES ON POWER SOURCE,
SEE POWER SOURCE OPERATING MANUAL.
DIAGRAMS
F-5
DC655e (CE) (RED-D-ARC)
Page 39
F-6
50
52
A
T1 MAIN
TRANSFORMER
334
41A
BRASS
305
G2
G5
G4
G3
G1
G6
222
41
301
203
263
222
314
301
FIRING CIRCUIT
C
C'
222A
A'
319
316
R2
41
RECEPTACLE
(FRONT VIEW)
14-PIN
STANDARD
13
L3
W
V
(SHOWN CONNECTED FOR LOW VOLTAGE)
X1
U
H2
N.D.
CR 1
CONTACTOR
256
G2
4
SCR
2
A4
SCR
G4
A2
SCR
6
G6
A6
G2
14
J8
3
4
6
7
G5
8
A5
9
5
G5
A2
G3
G6
222
C
1
J10
220V
S
AUX
F
.0045MFD
3000V
3
C9
TO
2
RECONNECT
C8
PANEL
1
C7
4
5
4
6
P16
A
261
3
1
2
P22
340
215
222
30
613
2
7
2
315
305
1
12
1
214
11
6
5
4
B'
J20
A5
G6
J9
A3
A3
115V
THERMAL FAN
16
THERMISTOR
15
NTC
14
13
12
11
10
300W
115V
31
2
T3
4
OPTIONAL DIGITAL
OPTIONAL
1
2
335
ANALOG METERS
GND.
STUD
32
4
77
76
752142
8
7
METER P.C. BOARD
334
BREAKER
FROM T1 AUX. WINDINGS
333
1
8
41
21
42A
5
32V
13
1
A
OUTPUT
RECTIFIER
2
ASSEMBLY
3
42
41
77
7
318
210
231
281
282
238
N.J.
A
3
SCR
G3
A
SCR
2
11
101112
T.S.1
13
77
14
7675
255
SECONDARY
THERMOSTAT
41
42
4
A1
SCR
345
346
328
255
322
344
2
8
1
1
5
8
J5
6
4
43
16
1
J1,J9,J15,J16
7
2
J17,J18,J19
9
1
J2
6
14
1
8
127
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
A
342
3
22
341
328
321
3
41
321
3
44
2
15
345
3
40
215
342
263
262
4
4
2
5
208
6
1
7
207
G4
9
206
G1
10
2
J5
205
4
J3
1
5
J4
310
262
3
6
G2
309
215
231
214
G3
204
261
4
600V
320V
J6
C6
160J
(ALL 3)
(ALL 3)
-
201
+
202
215
NOTES:
A
77
75
76
21
AM
A
CONTROL
CONTROL
N.E.
OUTPUT
-
+
OR
OPTIONS
ELECTRICAL SYMBOLS PER E1537
CASE
FRONT
STRIP
TERMINAL
BRACKET
10
9
8
11
7
12
6
1
5
1
3
2
4
J21
2
J2
S1
3
OFF
10
332
16
309
315
222A
201
2
15
2
202
1
3
15
3
3
17
222
317
4
222
215
2
10
315
210
5 6
222
317
7
215
315
10
310
317
226
75
202
201
15
J14
A
9
32A
273
CHOKE LEAD
10
PRI.
32A
300
A4
G1
G4
A6
7
F
S
10
GREEN
2
4
76
75
THERMOSTAT
10
2
9
87
CONTROL
6
5
P.C. BOARD
4
321
9
8
J16
7
6
5
OUTPUT
3
2
314
222
42V
S
F
3
207
S
331
6
9
42A
15
41
F
205
32V
F
S
45V
332
10V
LOW
S
208
(-)
32V
B
MOTOR
FAN
3
318
3
HIGH
W
4
317
4
31
(-)
11
206
12
5
PILOT
C2
R1
SWITCH
77
76
236
238
SW3
237
10K 1/4W
R3
237
75
10K
236
A
32
H1
H2
CONNECT OR INSULATE
255
220V RECEPTACLE
51
J3
210
8
201
202
9
2
3
10
4
5
6
1
J13
J12
2
2
4
5
11
6
7
12
331
8
13
14
210
201
202
336
RF
CHOKE
21
41
11
12
13
14
SNUBBER P.C. BOARD
15A
CIRCUIT
G1
1
A1
3
4
5
2
1
J23
342
263
262
4
261
3
2
342
263
262
J22
261
J7,J10,J12,J14
1
J4,J8,J13
J6,J11
3
1
J20
N.F. LOCATED IN SECONDARY COIL WINDING.
N.D. TAPE UP SEPARATELY TO PROVIDE AT LEAST
8
W
LIGHT
256
THERMAL
255
PROTECTION
LIGHT
+
336
282
A
T.S.2
+21
SWITCH
-21
TERMINAL
OUTPUT
41
31
2
255
41
BLK
256
Y
-
N.F.
4
2
X1
T2 CONTROL
TRANSFORMER
SW1
POWER SWITCH
211
X2
210
TERMINAL
41
TRANSFORMER
AS SHOWN ON INPUT
BOARD
226
41
CONTROL
4
SW5
RED
281
CONNECTION DIAGRAM
41
2
2
GREEN
N.G.
POSITION)
SWITCH
SW2
MODE
1
(SHOWN IN CC
FOR OPTIONAL
PARALLELING KIT
346
A
41A
42A
10A 42V CIRCUIT BREAKER
32A
32A
.15MFD
C10
C12
COILS
TO PRIMARY
12
2
3
1
PANEL
41
2A
CIRCUIT
BREAKER
A
31
202
32
201
2
LIFT
CONTROL
BALE
CODE
NATIONAL
BOX
CASE
AS'BLY.
ELECTRICAL
TO GROUND PER
BACK
BOTTOM
LOUVER
BASE
INPUT
BOX
RECONNECT
255A
C11
H1
440VAC
TO
319
316
8
1
2
42
THERMAL FAN/
OUTPUT SHUNT
(50 MV @800 AMPS)
O
UTPUT
.05MFD
TP2
C1
(+)
OUTPUT
600V INSULATION.
N.E. PLUG & LEAD ASSEMBLY GOES TO EITHER J12 (OPTIONAL DIGITAL
N.H. LOCATED ON OUTPUT RECTIFIER FLAT HEAT SINK.
N.G. STANDARD 14-PIN RECEPTACLE PLUGS INTO J16 ON STANDARD MACHINES.
METERS PC BD.) OR J14 (IN LINE CONNECTOR FOR ANALOG
METERS).
N.J. AS SHIPPED ONLY SWITCH #4 IS ON (UP). SEE INS TRUCTION MANUAL.
PRI.
203
4
SEC.
F
SEC.
31
F
S
S
F
10V
333
335
AUX1
14
204
S
F
6
5
+
VM
-
3
222
6
514
3
J15
P15
1
5757
2
75
3
75
4
6767
5
77
7
7
6
7
8
41
41
9
210210
32A32A
4
4
4141
1414
42A
222
10
12
13
42A
14
222
J11
10A
F1
2
1
3
210
1
2
3
4
1
222
J7
2
G5
3
4
5
6
A
OUTPUT CHOKE
7
222
8
B
P.C. BOARD
222
8
TP3
N.H.
COM
NC
NO
255A
R4
10K
CR 2
ARC FORCE
210
TP1
A
H4
PANEL
LINES
RECONNECT
SUPPLY
H3
TO
15
A
A
A
230/400 VOLTAGE
A
4
11
J1
12 13
9
8
14
7
6
5
4
3
2
1
H3
11
10
3
2
1
14
L1
L2
A.01
G3348-4
WIRING DIAGRAMS FOR DC655e (CE)
GND
A
B
C
D
E
GND
77
76
75
2
4
GROUND
STUD
DIAGRAMS
F-6
DC655e (CE) (RED-D-ARC)
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.
Page 40
F-7
.94
*
*
*
LOCATION OF BASE MOUNTING HOLES
*
*
20.00
3.30
27.86
9.19
27.48
22.22
THIS DIMENSION WILL VARY
WITH POSITION OF HANDLE
36.12
11.11
18.68
38.64
5.90
39.97
29.93
M18349
1-9-98M
DIMENSION PRINT (WITH K817P UNDERCARRIAGE)
DIAGRAMS
F-7
DC655e (CE) (RED-D-ARC)
Page 41
F-8
37.93
3.77
36.12
17.97
20.00
27.65
*
37.88
*
LOCATION OF BASE MOUNTING HOLES
*
29.93
.94
*
*
3.30
22.53
22.06
11.03
27.48
7.13
53.42
49.89
M18350
5-16-97
DIMENSION PRINT (WITH K842 UNDERCARRIAGE)
DIAGRAMS
F-8
DC655e (CE) (RED-D-ARC)
Page 42
NOTES
DC655e (CE) (RED-D-ARC)
Page 43
WARNING
Spanish
AVISO DE
PRECAUCION
● Do not touch electrically live parts or
electrode with skin or wet clothing.
● Insulate yourself from work and
ground.
● No toque las partes o los electrodos
bajo carga con la piel o ropa mojada.
● Aislese del trabajo y de la tierra.
● Keep flammable materials away.
● Mantenga el material combustible
fuera del área de trabajo.
● Wear eye, ear and body protection.
● Protéjase los ojos, los oídos y el
cuerpo.
French
ATTENTION
German
WARNUNG
Portuguese
ATENÇÃO
Japanese
Chinese
Korean
Arabic
● Ne laissez ni la peau ni des vête-
ments mouillés entrer en contact
avec des pièces sous tension.
● Isolez-vous du travail et de la terre.
● Berühren Sie keine stromführenden
Teile oder Elektroden mit Ihrem
Körper oder feuchter Kleidung!
● Isolieren Sie sich von den
Elektroden und dem Erdboden!
● Não toque partes elétricas e elec-
trodos com a pele ou roupa molhada.
● Isole-se da peça e terra.
● Gardez à l’écart de tout matériel
inflammable.
● Entfernen Sie brennbarres Material!
● Mantenha inflamáveis bem guarda-
dos.
● Protégez vos yeux, vos oreilles et
votre corps.
● Tragen Sie Augen-, Ohren- und Kör-
perschutz!
● Use proteção para a vista, ouvido e
corpo.
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE
USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.
SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS
CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.
LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.
LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.
Page 44
● Keep your head out of fumes.
● Use ventilation or exhaust to
remove fumes from breathing zone.
● Turn power off before servicing.
● Do not operate with panel open or
guards off.
WARNING
● Los humos fuera de la zona de res-
piración.
● Mantenga la cabeza fuera de los
humos. Utilice ventilación o
aspiración para gases.
● Gardez la tête à l’écart des fumées.
● Utilisez un ventilateur ou un aspira-
teur pour ôter les fumées des zones
de travail.
● Vermeiden Sie das Einatmen von
Schweibrauch!
● Sorgen Sie für gute Be- und
Entlüftung des Arbeitsplatzes!
● Mantenha seu rosto da fumaça.
● Use ventilação e exhaustão para
remover fumo da zona respiratória.
● Desconectar el cable de ali-
mentación de poder de la máquina
antes de iniciar cualquier servicio.