Miller Migmatic 175 CE User manual
Processes
Description
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
Arc Welding Power Source and
Wire Feeder
Migmatic 175
CE
OM-259 158A 2013-02
OWNER’S MANUAL
Visit our website at
www.MillerWelds.com
Thank you and congratulations on choosing Miller. Now you can get the
job done and get it done right. We know you don’t have time to do it any
other way.
That’s why when Niels Miller first started building arc welders in 1929,
he made sure his products offered long-lasting value and superior quality.
Like you, his customers couldn’t afford anything less. Miller products had
to be more than the best they could be. They had to be the best you could
buy.
Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.
This Owner’s Manual is designed to help you get the most out of your
Miller products. Please take time to read the Safety precautions. They will
help you protect yourself against potential hazards on the worksite. We’ve
made installation and operation quick and easy. With Miller you can
count on years of reliable service with proper maintenance. And if for
some reason the unit needs repair, there’s a Troubleshooting section that
will help you figure out what the problem is. The parts list will then help
you to decide which exact part you may need to fix the problem.
Warranty and service information for your particular model are also
provided.
Miller Electric manufactures a full line of
welders and welding related equipment. For
information on other quality Miller products, contact your local Miller
distributor to receive the latest full line catalog or individual catalog sheets.
Working as hard as you do
− every power source from
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From Miller to You
TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1.................................
1-1. Symbol Usage 1.......................................................................
1-2. Arc Welding Hazards 1.................................................................
1-3. Additional Symbols For Installation, Operation, And Maintenance 3............................
1-4. California Proposition 65 Warnings 4......................................................
1-5. Principal Safety Standards 4............................................................
1-6. EMF Information 4.....................................................................
SECTION 2 − DEFINITIONS 5.................................................................
2-1. Additional Safety Symbols And Definitions 5...............................................
2-2. Miscellaneous Symbols And Definitions 6..................................................
SECTION 3 − INSTALLATION 7................................................................
3-1. Important Information Regarding CE Products (Sold Within The EU) 7..........................
3-2. Specifications 7.......................................................................
3-3. Serial Number And Rating Label Location 8................................................
3-4. Selecting A Location 8..................................................................
3-5. Duty Cycle and Overheating 9...........................................................
3-6. Volt-Ampere Curves 9..................................................................
3-7. Installing Gas Supply 10.................................................................
3-8. Changing Drive Roll and Wire Inlet Guide 11................................................
3-9. Aligning Drive Rolls and Wire Guide 11.....................................................
3-10. Threading Welding Wire And Adjusting Pressure Roll Tension 12...............................
3-11. Electrical Service Guide 13...............................................................
3-12. Connecting 1-Phase Input Power For 230 VAC 14...........................................
SECTION 4 − OPERATION 16..................................................................
4-1. Controls 16............................................................................
SECTION 5 − MAINTENANCE AND TROUBLESHOOTING 17......................................
5-1. Unit Overload 17.......................................................................
5-2. Troubleshooting 17.....................................................................
SECTION 6 − ELECTRICAL DIAGRAM 18........................................................
SECTION 7 − PARTS LIST 19..................................................................
WARRANTY
DECLARATION OF CONFORMITY
for European Community (CE marked) products.
ITW Welding Products Italy S.r.l Via Privata Iseo 6/E, 20098 San Giuliano M.se, (MI) Italy declares that
the product(s) identified in this declaration conform to the essential requirements and provisions of
the stated Council Directive(s) and Standard(s).
Product/Apparatus Identification:
Product Stock Number
MIGMATIC 175, 230VAC 029015550
Council Directives:
•2006/95/EC Low Voltage
•2004/108/EC Electromagnetic Compatibility
•2011/65/EU Restriction of the use of certain hazardous substances in electrical and electronic equipment.
Standards:
•IEC 609741 Arc Welding Equipment Welding Power Sources: edition 3, 200507.
•IEC 609745 Arc Welding Equipment – Wire Feeders: edition 2, 200711.
•IEC 6097410 Arc Welding Equipment Electromagnetic Compatibility Requirements: edition 2.0, 200708.
•EN 50445:2008 Product family standard to demonstrate compliance of equipment for resistance welding, arc
welding and allied processes with the basic restrictions related to human exposure to electromagnetic fields
(0Hz300Hz)
EU Signatory:
February 8th, 2013
___________________________________________________________________________________
Massimigliano Lavarini Date of Declaration
ELECTRONIC ENGINEER R&D TECH.SUPPORT
956 172 014
OM-259 158 Page 1
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING
som 2011−10
7
Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions.
1-1. Symbol Usage
DANGER! − Indicates a hazardous situation which, if
not avoided, will result in death or serious injury. The
possible hazards are shown in the adjoining symbols
or explained in the text.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible
hazards are shown in the adjoining symbols or ex-
plained in the text.
NOTICE − Indicates statements not related to personal injury.
Indicates special instructions.
This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult sym-
bols and related instructions below for necessary actions to avoid the
hazards.
1-2. Arc Welding Hazards
The symbols shown below are used throughout this manual
to call attention to and identify possible hazards. When you
see the symbol, watch out, and follow the related instructions
to avoid the hazard. The safety information given below is
only a summary of the more complete safety information
found in the Safety Standards listed in Section 1-5. Read and
follow all Safety Standards.
Only qualified persons should install, operate, maintain, and
repair this unit.
During operation, keep everybody, especially children, away.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on. In semiautomatic or automatic
wire welding, the wire, wire reel, drive roll housing,
and all metal parts touching the welding wire are
electrically live. Incorrectly installed or improperly
grounded equipment is a hazard.
Do not touch live electrical parts.
Wear dry, hole-free insulating gloves and body protection.
Insulate yourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the work
or ground.
Do not use AC output in damp areas, if movement is confined, or if
there is a danger of falling.
Use AC output ONLY if required for the welding process.
If AC output is required, use remote output control if present on
unit.
Additionalsafety precautions are required when any of the follow-
ing electrically hazardous conditions are present: 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; or when there is a high risk of unavoid-
able or accidental contact with the workpiece or ground. For these
conditions, use the following equipment in order presented: 1) a
semiautomaticDC constant voltage (wire) welder, 2) a DC manual
(stick) welder, or 3) an AC welder with reduced open-circuit volt-
age. In most situations, use of a DC, constant voltage wire welder
is recommended. And, do not work alone!
Disconnect input power or stop engine before installing or
servicing this equipment. Lockout/tagout input power according to
OSHA 29 CFR 1910.147 (see Safety Standards).
Properly install, ground, and operate this equipment according to
its Owner’s Manual and national, state, and local codes.
Always verify the supply ground − check and be sure that input
power cord ground wire is properly connected to ground terminal in
disconnect box or that cord plug is connected to a properly
grounded receptacle outlet.
When making input connections, attach proper grounding conduc-
tor first − double-check connections.
Keep cords dry, free of oil and grease, and protected from hot metal
and sparks.
Frequently inspect input power cord for damage or bare wiring −
replace cord immediately if damaged − bare wiring can kill.
Turn off all equipment when not in use.
Do not use worn, damaged, undersized, or poorly spliced cables.
Do not drape cables over your body.
If earth grounding of the workpiece is required, ground it directly
with a separate cable.
Do not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
Do not touch electrode holders connected to two welding ma-
chines at the same time since double open-circuit voltage will be
present.
Use only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
Wear a safety harness if working above floor level.
Keep all panels and covers securely in place.
Clamp work cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
Insulate work clamp when not connected to workpiece to prevent
contact with any metal object.
Do not connect more than one electrode or work cable to any
single weld output terminal. Disconnect cable for process not in
use.
SIGNIFICANT DC VOLTAGE exists in inverter weld-
ing power sources AFTER removal of input power.
Turn Off inverter, disconnect input power, and discharge input
capacitors according to instructions in Maintenance Section
before touching any parts.
HOT PARTS can burn.
Do not touch hot parts bare handed.
Allow cooling period before working on equip-
ment.
To handle hot parts, use proper tools and/or
wear heavy, insulated welding gloves and
clothing to prevent burns.
OM-259 158 Page 2
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
FUMES AND GASES can be hazardous.
Keep your head out of the fumes. Do not breathe the fumes.
If inside, ventilate the area and/or use local forced ventilation at the
arc to remove welding fumes and gases.
If ventilation is poor, wear an approved air-supplied respirator.
Read and understand the Material Safety Data Sheets (MSDSs)
and the manufacturer’s instructions for metals, consumables,
coatings, cleaners, and degreasers.
Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained watch-
person nearby. Welding fumes and gases can displace air and
lower the oxygen level causing injury or death. Be sure the breath-
ing air is safe.
Do not weld in locations near degreasing, cleaning, or spraying op-
erations. The heat and rays of the arc can react with vapors to form
highly toxic and irritating gases.
Do not weld on coated metals, such as galvanized, lead, or
cadmium plated steel, unless the coating is removed from the weld
area, the area is well ventilated, and while wearing an air-supplied
respirator. The coatings and any metals containing these elements
can give off toxic fumes if welded.
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays
that can burn eyes and skin. Sparks fly off from the
weld.
Wear an approved welding helmet fitted with a proper shade of
filter lenses to protect your face and eyes from arc rays and
sparks when welding or watching (see ANSI Z49.1 and Z87.1
listed in Safety Standards).
Wear approved safety glasses with side shields under your
helmet.
Use protective screens or barriers to protect others from flash,
glare and sparks; warn others not to watch the arc.
Wear protective clothing made from durable, flame-resistant
material (leather, heavy cotton, or wool) and foot protection.
ARC RAYS can burn eyes and skin.
Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up. Sparks
can fly off from the welding arc. The flying sparks, hot
workpiece, and hot equipment can cause fires and
burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding.
WELDING can cause fire or explosion.
Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
Do not weld where flying sparks can strike flammable material.
Protect yourself and others from flying sparks and hot metal.
Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.
Watch for fire, and keep a fire extinguisher nearby.
Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.
Do not weld on containers that have held combustibles, or on
closed containers such as tanks, drums, or pipes unless they are
properly prepared according to AWS F4.1 and AWS A6.0 (see
Safety Standards).
Do not weld where the atmosphere may contain flammable dust,
gas, or liquid vapors (such as gasoline).
Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock, sparks, and fire
hazards.
Do not use welder to thaw frozen pipes.
Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
Wear oil-free protective garments such as leather gloves, heavy
shirt, cuffless trousers, high shoes, and a cap.
Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.
After completion of work, inspect area to ensure it is free of sparks,
glowing embers, and flames.
Use only correct fuses or circuit breakers. Do not oversize or by-
pass them.
Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B
for hot work and have a fire watcher and extinguisher nearby.
FLYING METAL or DIRT can injure eyes.
Welding, chipping, wire brushing, and grinding
cause sparks and flying metal. As welds cool,
they can throw off slag.
Wear approved safety glasses with side
shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
Shut off compressed gas supply when not in use.
Always ventilate confined spaces or use
approved air-supplied respirator.
ELECTRIC AND MAGNETIC FIELDS (EMF
)
can affect Implanted Medical Devices.
Wearers of Pacemakers and other Implanted
Medical Devices should keep away.
Implanted Medical Device wearers should consult their doctor
and the device manufacturer before going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating
operations.
NOISE can damage hearing.
Noise from some processes or equipment can
damage hearing.
Wear approved ear protection if noise level is
high.
Compressed gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
CYLINDERS can explode if damaged.
Protect compressed gas cylinders from excessive heat, mechani-
cal shocks, physical damage, slag, open flames, sparks, and arcs.
Install cylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.
Keep cylinders away from any welding or other electrical circuits.
Never drape a welding torch over a gas cylinder.
Never allow a welding electrode to touch any cylinder.
Never weld on a pressurized cylinder − explosion will result.
Use only correct compressed gas cylinders, regulators, hoses,
and fittings designed for the specific application; maintain them
and associated parts in good condition.
Turn face away from valve outlet when opening cylinder valve.
Keep protective cap in place over valve except when cylinder is in
use or connected for use.
Use the right equipment, correct procedures, and sufficient num-
ber of persons to lift and move cylinders.
Read and follow instructions on compressed gas cylinders,
associated equipment, and Compressed Gas Association (CGA)
publication P-1 listed in Safety Standards.
OM-259 158 Page 3
1-3. Additional Symbols For Installation, Operation, And Maintenance
FIRE OR EXPLOSION hazard.
Do not install or place unit on, over, or near
combustible surfaces.
Do not install unit near flammables.
Do not overload building wiring − be sure power supply system is
properly sized, rated, and protected to handle this unit.
FALLING EQUIPMENT can injure.
Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
Use equipment of adequate capacity to lift and
support unit.
If using lift forks to move unit, be sure forks are long enough to
extend beyond opposite side of unit.
Keep equipment (cables and cords) away from moving vehicles
when working from an aerial location.
Follow the guidelines in the Applications Manual for the Revised
NIOSH Lifting Equation (Publication No. 94−110) when manu-
ally lifting heavy parts or equipment.
OVERUSE can cause OVERHEATING
Allow cooling period; follow rated duty cycle.
Reduce current or reduce duty cycle before
starting to weld again.
Do not block or filter airflow to unit.
FLYING SPARKS can injure.
Wear a face shield to protect eyes and face.
Shape tungsten electrode only on grinder with
proper guards in a safe location wearing proper
face, hand, and body protection.
Sparks can cause fires — keep flammables away.
STATIC (ESD) can damage PC boards.
Put on grounded wrist strap BEFORE handling
boards or parts.
Use proper static-proof bags and boxes to
store, move, or ship PC boards.
MOVING PARTS can injure.
Keep away from moving parts.
Keep away from pinch points such as drive
rolls.
WELDING WIRE can injure.
Do not press gun trigger until instructed to do
so.
Do not point gun toward any part of the body,
other people, or any metal when threading
welding wire.
BATTERY EXPLOSION can injure.
Do not use welder to charge batteries or jump
start vehicles unless it has a battery charging
feature designed for this purpose.
MOVING PARTS can injure.
Keep away from moving parts such as fans.
Keep all doors, panels, covers, and guards
closed and securely in place.
Have only qualified persons remove doors, panels, covers, or
guards for maintenance and troubleshooting as necessary.
Reinstall doors, panels, covers, or guards when maintenance is
finished and before reconnecting input power.
READ INSTRUCTIONS.
Read and follow all labels and the Owner’s
Manual carefully before installing, operating, or
servicing unit. Read the safety information at
the beginning of the manual and in each
section.
Use only genuine replacement parts from the manufacturer.
Perform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
H.F. RADIATION can cause interference.
High-frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communicationsequipment.
Have only qualified persons familiar with
electronic equipment perform this installation.
The user is responsible for having a qualified electrician prompt-
ly correct any interference problem resulting from the installa-
tion.
If notified by the FCC about interference, stop using the
equipmentat once.
Have the installation regularly checked and maintained.
Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
ARC WELDING can cause interference.
Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
Be sure all equipment in the welding area is
electromagneticallycompatible.
To reduce possible interference, keep weld cables as short as
possible, close together, and down low, such as on the floor.
Locate welding operation 100 meters from any sensitive elec-
tronic equipment.
Be sure this welding machine is installed and grounded
according to this manual.
If interference still occurs, the user must take extra measures
such as moving the welding machine, using shielded cables,
using line filters, or shielding the work area.
OM-259 158 Page 4
1-4. California Proposition 65 Warnings
Welding or cutting equipment produces fumes or gases
which contain chemicals known to the State of California to
cause birth defects and, in some cases, cancer. (California
Health & Safety Code Section 25249.5 et seq.)
This product contains chemicals, including lead, known to
the state of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after use.
1-5. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
is available as a free download from the American Welding Society at
http://www.aws.org or purchased from Global Engineering Documents
(phone: 1-877-413-5184, website: www.global.ihs.com).
Safe Practices for the Preparation of Containers and Piping for Welding
and Cutting, American Welding Society Standard AWS F4.1, from Glob-
al Engineering Documents (phone: 1-877-413-5184, website:
www.global.ihs.com).
Safe Practices for Welding and Cutting Containers that have Held Com-
bustibles, American Welding Society Standard AWS A6.0, from Global
EngineeringDocuments (phone: 1-877-413-5184,
website: www.global.ihs.com).
National Electrical Code, NFPA Standard 70, from National Fire Protec-
tion Association, Quincy, MA 02269 (phone: 1-800-344-3555, website:
www.nfpa.org and www. sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 14501 George Carter Way, Suite
103, Chantilly, VA 20151 (phone: 703-788-2700, website:www.cga-
net.com).
Safety in Welding, Cutting, and Allied Processes, CSA Standard
W117.2, from Canadian Standards Association, Standards Sales, 5060
Spectrum Way, Suite 100, Ontario, Canada L4W 5NS (phone:
800-463-6727,website: www.csa-international.org).
Safe Practice For Occupational And Educational Eye And Face Protec-
tion, ANSI Standard Z87.1, from American National Standards Institute,
25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web-
site: www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection Association,
Quincy, MA 02269 (phone: 1-800-344-3555, website: www.nfpa.org.
OSHA, Occupational Safety and Health Standards for General Indus-
try, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,
and Part 1926, Subpart J, from U.S. Government Printing Office, Super-
intendentof Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954
(phone: 1-866-512-1800) (there are 10 OSHA Regional Offices—
phone for Region 5, Chicago, is 312-353-2220, website:
www.osha.gov).
Applications Manual for the Revised NIOSH Lifting Equation, The Na-
tional Institute for Occupational Safety and Health (NIOSH), 1600
Clifton Rd, Atlanta, GA 30333 (phone: 1-800-232-4636, website:
www.cdc.gov/NIOSH).
1-6. EMF Information
Electric current flowing through any conductor causes localized electric
and magnetic fields (EMF). Welding current creates an EMF field
around the welding circuit and welding equipment. EMF fields may inter-
fere with some medical implants, e.g. pacemakers. Protective
measures for persons wearing medical implants have to be taken. For
example, restrict access for passers−by or conduct individual risk as-
sessment for welders. All welders should use the following procedures
in order to minimize exposure to EMF fields from the welding circuit:
1. Keep cables close together by twisting or taping them, or using a
cable cover.
2. Do not place your body between welding cables. Arrange cables
to one side and away from the operator.
3. Do not coil or drape cables around your body.
4. Keep head and trunk as far away from the equipment in the
welding circuit as possible.
5. Connect work clamp to workpiece as close to the weld as
possible.
6. Do not work next to, sit or lean on the welding power source.
7. Do not weld whilst carrying the welding power source or wire
feeder.
About Implanted Medical Devices:
ImplantedMedical Device wearers should consult their doctor and the
device manufacturer before performing or going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating operations.
If cleared by your doctor, then following the above procedures is recom-
mended.
OM-259 158 Page 5
SECTION 2 − DEFINITIONS
2-1. Additional Safety Symbols And Definitions
Some symbols are found only on CE products.
Warning! Watch Out! There are possible hazards as shown by the symbols.
Safe1 2012−05
Do not discard product (where applicable) with general waste.
Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection
facility.
Contact your local recycling office or your local distributor for further information.
Safe37 2012−05
Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves.
Safe2 2012−05
Protect yourself from electric shock by insulating yourself from work and ground.
Safe3 2012−05
Disconnect input plug or power before working on machine.
Safe5 2012−05
Keep your head out of the fumes.
Safe6 2012−05
Use forced ventilation or local exhaust to remove the fumes.
Safe8 2012−05
Use ventilating fan to remove fumes.
Safe10 2012−05
Keep flammables away from welding. Do not weld near flammables.
Safe12 2012−05
Welding sparks can cause fires. Have a fire extinguisher nearby, and have a watchperson ready to use it.
Safe14 2012−05
OM-259 158 Page 6
Do not weld on drums or any closed containers.
Safe16 2012−05
Do not remove or paint over (cover) the label.
Safe20 2012−05
<10°
Falling unit can cause injury. Do not move or operate unit where it could tip.
Safe53 2012−05
Wear hat and safety glasses. Use ear protection and button shirt
collar. Use welding helmet with correct shade of filter. Wear complete
body protection.
Safe38 2012−05
Kasjf;laksf;lkasdf'l;aksdf;lkasd;flksadflkasd;lk
Kasjf;laksf;lkasdf'l;aksdf;lkasd;flksadflkasd;lk
Kasjf;laksf;lkasdf'l;aksdf;lkasd;flksadflkasd;lk
Become trained and read the instructions before working on the
machine or welding.
Safe40 2012−05
2-2. Miscellaneous Symbols And Definitions
AAmperes VVolts Alternating Current
(AC) Direct Current
(DC)
Gas Supply Caution GMAW Gun With
Switch SSuitable For Weld-
ing In An Environ-
ment With In-
creased Risk Of
Electric Shock
Remote On Off Protective Earth
(Ground)
Line Connection Single Phase
Transformer
Rectifier Single Phase Gas Metal Arc
Welding (GMAW)
U1Primary Voltage I1max Rated Maximum
Supply Current I1eff Maximum Effective
Supply Current U2Conventional Load
Voltage
I2
Rated Welding
Current XDuty Cycle Percent U0Rated No Load
Voltage (Average)
IP Degree Of
Protection Voltage Input Wire Feed Hz Hertz
Read Operator’s
Manual Gas Input Gas Output Gas Type
Positive Negative Input
OM-259 158 Page 7
SECTION 3 − INSTALLATION
3-1. Important Information Regarding CE Products (Sold Within The EU)
!This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding.
This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public
access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.
Wire feeders and ancillary equipment (such as torches, liquid cooling systems and arc striking and stabilizing devices) as part of the welding
circuit may not be a major contributor to the EMF. See the Owner’s Manuals for all components of the welding circuit for additional EMF exposure
information.
The EMF assessment on this equipment was conducted at 0.5 meter.
At a distance of 1 meter the EMF exposure values were less than 20% of the permissible values.
!This Class A equipment is not intended for use in residential locations where the electrical power is provided by the public low−
voltage supply system. There can be potential difficulties in ensuring electromagnetic compatibility in those locations, due to con-
ducted as well as radiated disturbances.
This equipment complies with IEC 61000-3-12.
ce-emc 4 2011-09
3-2. Specifications
Model
Input Power
Single Phase
AC 50/60 Hz
Voltage
Rated Output Max. Open
Circuit Volt-
age
Amperage/
Voltage
Range DC
IP
Rating Dimension Weight
MigMatic
175 230 Volts MIG
100% 60% 30%
34 V 30−150 A
15.5−21.0 V IP21S*
L=769 mm
(30.3 in.)
W=447 mm
(17.6 in.)
H=561 mm
(22.1 in.)
Net:
43.3 Kg
(95.5 lb)
Ship:
45.4 Kg (100
lb)
60 A
17 V 100 A
19 V 150 A
21 V
Wire feed speed range 1,8 mpm to 18 mpm.
* This equipment is designed for outdoor use. It may be stored, but is not intended to be used outside during precipitation unless sheltered.
Operating Temperature Range: −10C (14F) to 40C (104F).
Rating were developed at an ambient temperature of 20C (68F) to 25C (77F)
Notes
OM-259 158 Page 8
3-3. Serial Number And Rating Label Location
The serial number and rating information for this product is located on the back. Use rating label to determine input power requirements and/or rated
output. For future reference, write serial number in space provided on back cover of this manual.
3-4. Selecting A Location
loc_2 3/96 - Ref. 956142985-2-A
1 Line Disconnect Device
Locate unit near correct input
power supply.
!Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
Location
1
460 mm (18 in.)
Tipping !Do not move or operate
unit where it could tip.
460 mm (18 in.)
OM-259 158 Page 9
duty1 4/95 − SB-150 215
250
200
150
100
30 40 50 60 70 80 90 100
50
3525
Rated Output
6 minutes welding 4 minutes resting
Duty Cycle is a percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s) opens,
output stops, and cooling fan runs. Wait
fifteen minutes for unit to cool. Reduce
amperage or voltage, or duty cycle be-
fore welding.
NOTICE − Exceeding duty cycle can
damage unit or gun and void warranty.
Overheating
0
15 OR
reduce duty cycle
Minutes
100% Duty Cycle at 60 Amperes
A or V
60% Duty Cycle at 100 Amperes
% DUTY CYCLE
3-5. Duty Cycle and Overheating
Continuous Welding
3-6. Volt-Ampere Curves
Model 175
50 100 150 200
40
30
20
10
1 Normal Volt-Amperage Curves
The volt-ampere curves show the nor-
mal minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves of
other settings fall between the curves
shown.
2 Overload Volt-Ampere Curves
When unit is beyond capacity, circuitry
senses the overload and shuts down
unit output. Release trigger and lower
weld voltage setting before trying to
weld. This shut down circuitry protects
internal circuits and parts from over-
load damage.
OM-259 158 Page 10
3-7. Installing Gas Supply
Ref. 148 265-B / Ref. 149 827-B / Ref. 156 697-A / Ref. 956142985-2-A
CO2Gas
Argon Gas Or Mixed Gas
OR
1
2
3
1
2
3
Rear Panel
4
57
8 9
Obtain gas cylinder and chain to
running gear, wall, or other
stationary support so cylinder
cannot fall and break off valve.
1 Cap
2 Cylinder Valve
Remove cap, stand to side of
valve, and open valve slightly. Gas
flow blows dust and dirt from valve.
Close valve.
3 Cylinder
4 Regulator/Flowmeter
Install so face is vertical.
5 Regulator/Flowmeter Gas
Hose Connection
6 Welding Power Source Gas
Hose Connection
Connect supplied gas hose
between regulator/flowmeter gas
hose connection, and fitting on
rear of welding power source.
7 Flow Adjust
Typical flow rate is between 15-20
liters per minute. Check wire
manufacturer’s recommended
flow rate.
8CO
2Adapter (Customer
Supplied)
9 O-Ring (Customer Supplied)
Install adapter with O-ring between
regulator/flowmeter and CO2
cylinder.
6
OM-259 158 Page 11
1 Wire Guide Securing Screw
2 Inlet Wire Guide
Loosen screw. Slide tip as close to
drive rolls as possible without touch-
ing. Tighten screw.
3 Drive Roll
The drive roll consists of two differ-
ent sized grooves. The stamped
markings on the end surface of the
drive roll refers to the grooves on the
opposite side of the drive roll. The
grooves closest to the motor shaft is
the proper groove to thread.
4 Drive Roll Securing Screw
Loosen screw and remove drive roll.
3-8. Changing Drive Roll and Wire Inlet Guide
956142945-5-A
2.5 mm (0.1 in.)
Tools Needed:
Tools Needed:
1
2
34
3-9. Aligning Drive Rolls and Wire Guide
!Turn off and disconnect in-
put power
View is from top of drive rolls
looking down with pressure
assembly open.
1 Drive Roll Securing Nut
2 Drive Roll
3 Wire Guide
4 Welding Wire
5 Drive Gear
Insert screwdriver, and turn screw
in or out until drive roll groove lines
up with wire guide.
Close pressure roll assembly.
Ref. 800 412-A
Correct Incorrect
4
3
2
1
5
Tools Needed:
OM-259 158 Page 12
3-10. Threading Welding Wire And Adjusting Pressure Roll Tension
1 Wire Spool
2 Welding Wire
3 Inlet Wire Guide
4 Pressure Adjustment Knob
5 Drive Roll
6 Outlet Wire Guide
7 Gun Conduit Cable
Lay gun cable out straight.
4
7
5
6
2
1
Tools Needed:
Hold wire tightly to keep it
from unraveling.
Open pressure assembly. Pull and hold wire; cut off end. Push wire thru guides into gun;
continue to hold wire.
Close and tighten pressure
assembly, and let go of wire. Remove gun nozzle and contact tip. Turn On.
Press gun trigger until wire
comes out of gun. Reinstall
contact tip and nozzle
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping. Cut off wire. Close
and latch door.
958142985_6-A
Tighten Use pressure indicator
scale to set a desired
drive roll pressure.
Pressure
Indicator
Scale
Tighten
3
150 mm
(6 in.)
OM-259 158 Page 13
3-11. Electrical Service Guide Elec Serv 2011−08
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda-
tions are for a dedicated circuit sized for the rated output and duty cycle of the welding power source.
In dedicated circuit installations, the National Electrical Code (NEC) allows the receptacle or conductor rating to be less than the rating
of the circuit protection device. All components of the circuit must be physically compatible. See NEC articles 210.21, 630.11, and
630.12.
MigMatic Model MigMatic 175 50/60 Hz
Single−Phase
Input Voltage (V) 230
Input Amperes (A) At Rated Output 20
Max Recommended Standard Fuse Rating In Amperes1
Time-Delay Fuses225
Normal Operating Fuses 330
Min Input Conductor Size In AWG 44 (12)
Max Recommended Input Conductor Length In Meters (Feet) 86 (26)
Min Grounding Conductor Size In AWG 44 (12)
Reference: 2011 National Electrical Code (NEC) (including article 630)
1 If a circuit breaker is used in place of a fuse, choose a circuit breaker with time-current curves comparable to the recommended fuse.
2 “Time-Delay” fuses are UL class “RK5” . See UL 248.
3 “Normal Operating” (general purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amps), and UL class “H” ( 65 amps and
above).
4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table
310.15(B)(16). If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable
requirements.
Notes
OM-259 158 Page 14
3-12. Connecting 1-Phase Input Power For 230 VAC
input4 2012−05 − Ref. 803 766-C / 956142985_2-A
2
1
L1
L2
1
=GND/PE Earth Ground
6
5
3
4
7
Tools Needed:
OM-259 158 Page 15
input4 2012−05
!Installationmust meet all National and
Local Codes − have only qualified per-
sons make this installation.
!Disconnect and lockout/tagout input
power before connecting input con-
ductors from unit. Follow established
procedures regarding the installation
and removal of lockout/tagout
devices.
!Always connect green or green/yellow
conductor to supply grounding termi-
nal first, and never to a line terminal.
See rating label on unit and check input volt-
age available at site.
1 Input Power Cord
2 Disconnect Device (switch shown in the
OFF position)
3 Disconnect Device Grounding Terminal
4 Disconnect Device Line Terminals
5 Black And White Input Conductor (L1
And L2)
6 Green Or Green/Yellow Grounding
Conductor
Connect green or green/yellow grounding
conductor to disconnect device grounding
terminal first.
Connect input conductors L1 and L2 to dis-
connect device line terminals.
7 Over-Current Protection
Select type and size of over-current protec-
tion using Section 3-11 (fused disconnect
switch shown).
Close and secure door on disconnect device.
Follow established lockout/tagout proced-
ures to put unit in service.
3-12. Connecting 1-Phase Input Power For 230 VAC (Continued)
Notes
OM-259 158 Page 16
SECTION 4 − OPERATION
4-1. Controls
1 Handle
2 Wire Speed Control
3 6 Position Voltage Control
4 Thermal Overload Pilot Light
5 Input Voltage Pilot Light
6 Power Switch
7 Negative Power Source
Terminal
8 Positive Power Source
Connector
9 Polarity Change Over Cable
10 Work Connection
11 Torch Connector
1
4
3
2
10
5
6
9
78
Ref. 956142985_2-A
11
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