Miller KK216882 Owner's manual

Brand: Miller

Model: KK216882

Category: Welding System

Type: Owner's manual

This manual is also suitable for

AeroWave

Aerowave

Processes

Description

TIG (GTAW) Welding

Stick (SMAW) Welding

Arc Welding Power Source

OM-319 154754H

September 2000

Visit our website at

www.MillerWelds.com

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. To locate your nearest

distributor or service agency call 1-800-4-A-Miller,

or visit us at www.MillerWelds.com on the web.

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 is the first welding

equipment manufacturer in

the U.S.A. to be registered to

the ISO 9001 Quality System

Standard.

Working as hard as you do

– every power source from

Miller is backed by the most

hassle-free warranty in the

business.

From Miller to You

Miller offers a Technical

Manual which provides

more detailed service and

parts information for your

unit. To obtain a Technical

Manual, contact your local

distributor. Your distributor

can also supply you with

Welding Process Manuals

such as SMAW, GTAW,

GMAW, and GMAW-P.

The following terms are

used interchangeably

throughout this manual:

TIG = GTAW

Stick = SMAW

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. Principal Safety Standards 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. EMF Information 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION 5. . . . . . . . . . . . . . . . . . . . .

1-1. Signification des symboles 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2. Dangers relatifs au soudage à l’arc 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement

et la maintenance 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4. Principales normes de sécurité 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. Information sur les champs électromagnétiques 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 – INSTALLATION 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1. Specifications 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2. Dimensions And Weights 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3. Duty Cycle And Overheating 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4. Volt-Ampere Curves 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5. Selecting A Location 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6. 115 VAC Receptacle, Circuit Breaker, And Shielding Gas Connections 12. . . . . . . . . . . . . . . . .

2-7. Weld Output Terminals And Selecting Cable Sizes 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8. Remote 14 Receptacle Information 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-9. Electrical Service Guide 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-10. Placing Jumper Links 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-11. Connecting Input Power 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-12. Connecting To Automation Connector Receptacle RC12 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – OPERATION 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1. Controls 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2. Polarity Switch And Pilot Lights 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3. Mode Switch 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4. Amperage/Preset Meter And Voltmeter 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5. Output Switch And Pilot Light 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6. Amperage Adjustment Controls 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7. Examples Of Combination Remote Amperage Control 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8. AC Balance Control 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-9. AC Frequency Controls 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10. Postflow Time Control 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-11. Start Switch 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12. Power Switch 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-13. Optional Controls 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-14. GTAW Trigger Hold Switch (Optional) 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-15. Spot Time Controls (Optional) 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-16. Preflow Time Controls (Optional) 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-17. Initial Sequence Controls (Optional) 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-18. Pulser Controls (Optional) 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-19. Final Sequence Controls (Optional) 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-20. Pulsed Weld Waveforms 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 – MAINTENANCE & TROUBLESHOOTING 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1. Routine Maintenance 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2. Overload Protection And Adjusting Spark Gap 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3. Troubleshooting 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-16. Preflow Time Controls (Optional) 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 – ELECTRICAL DIAGRAM 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 6 – HIGH FREQUENCY (HF) 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-1. Welding Processes Using HF 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-2. Sources Of HF Radiation From Incorrect Installation 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-3. Correct Installation 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 7 – PARTS LIST 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPTIONS AND ACCESSORIES

WARRANTY

OM-319H

WARNING

This product, when used

for welding or cutting,

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.)

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OM-319 Page 1

SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING

som _nd_5/97

1-1. Symbol Usage

Means Warning! Watch Out! There are possible hazards

with this procedure! The possible hazards are shown in

the adjoining symbols.

Y Marks a special safety message.

. Means “Note”; not safety related.

This group of symbols means Warning! Watch Out! possible

ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.

Consult symbols and related instructions below for necessary actions

to avoid the hazards.

1-2. Arc Welding Hazards

Y 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 1-4. Read and follow all

Safety Standards.

Y Only qualified persons should install, operate, maintain, and

repair this unit.

Y 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.

D Do not touch live electrical parts.

D Wear dry, hole-free insulating gloves and body protection.

D Insulate yourself from work and ground using dry insulating mats

or covers big enough to prevent any physical contact with the work

or ground.

D Do not use AC output in damp areas, if movement is confined, or if

there is a danger of falling.

D Use AC output ONLY if required for the welding process.

D If AC output is required, use remote output control if present on

unit.

D 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).

D Properly install and ground this equipment according to its

Owner’s Manual and national, state, and local codes.

D 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.

D When making input connections, attach proper grounding conduc-

tor first – double-check connections.

D Frequently inspect input power cord for damage or bare wiring –

replace cord immediately if damaged – bare wiring can kill.

D Turn off all equipment when not in use.

D Do not use worn, damaged, undersized, or poorly spliced cables.

D Do not drape cables over your body.

D If earth grounding of the workpiece is required, ground it directly

with a separate cable – do not use work clamp or work cable.

D Do not touch electrode if you are in contact with the work, ground,

or another electrode from a different machine.

D Use only well-maintained equipment. Repair or replace damaged

parts at once. Maintain unit according to manual.

D Wear a safety harness if working above floor level.

D Keep all panels and covers securely in place.

D Clamp work cable with good metal-to-metal contact to workpiece

or worktable as near the weld as practical.

D Insulate work clamp when not connected to workpiece to prevent

contact with any metal object.

D Do not connect more than one electrode or work cable to any

single weld output terminal.

SIGNIFICANT DC VOLTAGE exists after removal of

input power on inverters.

D Turn Off inverter, disconnect input power, and discharge input

capacitors according to instructions in Maintenance Section

before touching any parts.

Welding produces fumes and gases. Breathing

these fumes and gases can be hazardous to your

health.

FUMES AND GASES can be hazardous.

D Keep your head out of the fumes. Do not breathe the fumes.

D If inside, ventilate the area and/or use exhaust at the arc to remove

welding fumes and gases.

D If ventilation is poor, use an approved air-supplied respirator.

D Read the Material Safety Data Sheets (MSDSs) and the

manufacturer’s instructions for metals, consumables, coatings,

cleaners, and degreasers.

D 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.

D 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.

D 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 if necessary, while wearing an

air-supplied respirator. The coatings and any metals containing

these elements can give off toxic fumes if welded.

OM-319 Page 2

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.

ARC RAYS can burn eyes and skin.

D Wear a welding helmet fitted with a proper shade of filter to protect

your face and eyes when welding or watching (see ANSI Z49.1

and Z87.1 listed in Safety Standards).

D Wear approved safety glasses with side shields under your

helmet.

D Use protective screens or barriers to protect others from flash and

glare; warn others not to watch the arc.

D Wear protective clothing made from durable, flame-resistant mate-

rial (leather and wool) and foot protection.

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 explo-

sion.

D Protect yourself and others from flying sparks and hot metal.

D Do not weld where flying sparks can strike flammable material.

D Remove all flammables within 35 ft (10.7 m) of the welding arc. If

this is not possible, tightly cover them with approved covers.

D Be alert that welding sparks and hot materials from welding can

easily go through small cracks and openings to adjacent areas.

D Watch for fire, and keep a fire extinguisher nearby.

D Be aware that welding on a ceiling, floor, bulkhead, or partition can

cause fire on the hidden side.

D Do not weld on closed containers such as tanks, drums, or pipes,

unless they are properly prepared according to AWS F4.1 (see

Safety Standards).

D 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 and fire hazards.

D Do not use welder to thaw frozen pipes.

D Remove stick electrode from holder or cut off welding wire at

contact tip when not in use.

D Wear oil-free protective garments such as leather gloves, heavy

shirt, cuffless trousers, high shoes, and a cap.

D Remove any combustibles, such as a butane lighter or matches,

from your person before doing any welding.

FLYING METAL can injure eyes.

D Welding, chipping, wire brushing, and grinding

cause sparks and flying metal. As welds cool,

they can throw off slag.

D Wear approved safety glasses with side

shields even under your welding helmet.

BUILDUP OF GAS can injure or kill.

D Shut off shielding gas supply when not in use.

D Always ventilate confined spaces or use

approved air-supplied respirator.

HOT PARTS can cause severe burns.

D Do not touch hot parts bare handed.

D Allow cooling period before working on gun or

torch.

MAGNETIC FIELDS can affect pacemak-

ers.

D Pacemaker wearers keep away.

D Wearers should consult their doctor before

going near arc welding, gouging, or spot

welding operations.

NOISE can damage hearing.

Noise from some processes or equipment can

damage hearing.

D Wear approved ear protection if noise level is

high.

Shielding 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.

D Protect compressed gas cylinders from excessive heat, mechani-

cal shocks, slag, open flames, sparks, and arcs.

D Install cylinders in an upright position by securing to a stationary

support or cylinder rack to prevent falling or tipping.

D Keep cylinders away from any welding or other electrical circuits.

D Never drape a welding torch over a gas cylinder.

D Never allow a welding electrode to touch any cylinder.

D Never weld on a pressurized cylinder – explosion will result.

D Use only correct shielding gas cylinders, regulators, hoses, and fit-

tings designed for the specific application; maintain them and

associated parts in good condition.

D Turn face away from valve outlet when opening cylinder valve.

D Keep protective cap in place over valve except when cylinder is in

use or connected for use.

D Read and follow instructions on compressed gas cylinders,

associated equipment, and CGA publication P-1 listed in Safety

Standards.

OM-319 Page 3

1-3. Additional Symbols For Installation, Operation, And Maintenance

FIRE OR EXPLOSION hazard.

D Do not install or place unit on, over, or near

combustible surfaces.

D Do not install unit near flammables.

D Do not overload building wiring – be sure power supply system is

properly sized, rated, and protected to handle this unit.

FALLING UNIT can cause injury.

D Use lifting eye to lift unit only, NOT running

gear, gas cylinders, or any other accessories.

D Use equipment of adequate capacity to lift and

support unit.

D If using lift forks to move unit, be sure forks are

long enough to extend beyond opposite side of

unit.

OVERUSE can cause OVERHEATING

D Allow cooling period; follow rated duty cycle.

D Reduce current or reduce duty cycle before

starting to weld again.

D Do not block or filter airflow to unit.

STATIC (ESD) can damage PC boards.

D Put on grounded wrist strap BEFORE handling

boards or parts.

D Use proper static-proof bags and boxes to

store, move, or ship PC boards.

MOVING PARTS can cause injury.

D Keep away from moving parts.

D Keep away from pinch points such as drive

rolls.

WELDING WIRE can cause injury.

D Do not press gun trigger until instructed to do

so.

D Do not point gun toward any part of the body,

other people, or any metal when threading

welding wire.

MOVING PARTS can cause injury.

D Keep away from moving parts such as fans.

D Keep all doors, panels, covers, and guards

closed and securely in place.

H.F. RADIATION can cause interference.

D High-frequency (H.F.) can interfere with radio

navigation, safety services, computers, and

communications equipment.

D Have only qualified persons familiar with

electronic equipment perform this installation.

D The user is responsible for having a qualified electrician prompt-

ly correct any interference problem resulting from the installa-

tion.

D If notified by the FCC about interference, stop using the

equipment at once.

D Have the installation regularly checked and maintained.

D 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.

D Electromagnetic energy can interfere with

sensitive electronic equipment such as

computers and computer-driven equipment

such as robots.

D Be sure all equipment in the welding area is

electromagnetically compatible.

D To reduce possible interference, keep weld cables as short as

possible, close together, and down low, such as on the floor.

D Locate welding operation 100 meters from any sensitive elec-

tronic equipment.

D Be sure this welding machine is installed and grounded

according to this manual.

D 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.

1-4. Principal Safety Standards

Safety in Welding and Cutting, ANSI Standard Z49.1, from American

Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126

Safety and Health Standards, OSHA 29 CFR 1910, from Superinten-

dent of Documents, U.S. Government Printing Office, Washington, D.C.

20402.

Recommended Safe Practices for the Preparation for Welding and Cut-

ting of Containers That Have Held Hazardous Substances, American

Welding Society Standard AWS F4.1, from American Welding Society,

550 N.W. LeJeune Rd, Miami, FL 33126

National Electrical Code, NFPA Standard 70, from National Fire Protec-

tion Association, Batterymarch Park, Quincy, MA 02269.

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

from Compressed Gas Association, 1235 Jefferson Davis Highway,

Suite 501, Arlington, VA 22202.

Code for Safety in Welding and Cutting, CSA Standard W117.2, from

Canadian Standards Association, Standards Sales, 178 Rexdale

Boulevard, Rexdale, Ontario, Canada M9W 1R3.

Safe Practices For Occupation And Educational Eye And Face

Protection, ANSI Standard Z87.1, from American National Standards

Institute, 1430 Broadway, New York, NY 10018.

Cutting And Welding Processes, NFPA Standard 51B, from National

Fire Protection Association, Batterymarch Park, Quincy, MA 02269.

OM-319 Page 4

1-5. EMF Information

Considerations About Welding And The Effects Of Low Frequency

Electric And Magnetic Fields

Welding current, as it flows through welding cables, will cause electro-

magnetic fields. There has been and still is some concern about such

fields. However, after examining more than 500 studies spanning 17

years of research, a special blue ribbon committee of the National

Research Council concluded that: “The body of evidence, in the

committee’s judgment, has not demonstrated that exposure to power-

frequency electric and magnetic fields is a human-health hazard.”

However, studies are still going forth and evidence continues to be

examined. Until the final conclusions of the research are reached, you

may wish to minimize your exposure to electromagnetic fields when

welding or cutting.

To reduce magnetic fields in the workplace, use the following

procedures:

1. Keep cables close together by twisting or taping them.

2. Arrange cables to one side and away from the operator.

3. Do not coil or drape cables around your body.

4. Keep welding power source and cables as far away from opera-

tor as practical.

5. Connect work clamp to workpiece as close to the weld as possi-

ble.

About Pacemakers:

Pacemaker wearers consult your doctor first. If cleared by your doctor,

then following the above procedures is recommended.

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OM-319 Page 8

1-4. Principales normes de sécurité

Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel-

ding Society, 550 N.W. Lejeune Rd, Miami FL 33126

Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent

of Documents, U.S. Government Printing Office, Washington, D.C.

20402.

Recommended Safe Practice for the Preparation for Welding and Cut-

ting of Containers That Have Held Hazardous Substances, norme AWS

F4.1, de l’American Welding Society, 550 N.W. Lejeune Rd, Miami FL

33126

National Electrical Code, NFPA Standard 70, de la National Fire Protec-

tion Association, Batterymarch Park, Quincy, MA 02269.

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

de la Compressed Gas Association, 1235 Jefferson Davis Highway,

Suite 501, Arlington, VA 22202.

Règles de sécurité en soudage, coupage et procédés connexes, norme

CSA W117.2, de l’Association canadienne de normalisation, vente de

normes, 178 Rexdale Boulevard, Rexdale (Ontario) Canada M9W 1R3.

Safe Practices For Occupation And Educational Eye And Face Protec-

tion, norme ANSI Z87.1, de l’American National Standards Institute,

1430 Broadway, New York, NY 10018.

Cutting and Welding Processes, norme NFPA 51B, de la National Fire

Protection Association, Batterymarch Park, Quincy, MA 02269.

1-5. Information sur les champs électromagnétiques

Données sur le soudage électrique et sur les effets, pour l’organisme,

des champs magnétiques basse fréquence

Le courant de soudage, pendant son passage dans les câbles de sou-

dage, causera des champs électromagnétiques. Il y a eu et il y a encore

un certain souci à propos de tels champs. Cependant, après avoir ex-

aminé plus de 500 études qui ont été faites pendant une période de

recherche de 17 ans, un comité spécial ruban bleu du National Re-

search Council a conclu: “L’accumulation de preuves, suivant le

jugement du comité, n’a pas démontré que l’exposition aux champs

magnétiques et champs électriques à haute fréquence représente un

risque à la santé humaine”. Toutefois, des études sont toujours en cours

et les preuves continuent à être examinées. En attendant que les con-

clusions finales de la recherche soient établies, il vous serait

souhaitable de réduire votre exposition aux champs électromagnéti-

ques pendant le soudage ou le coupage.

Afin de réduire les champs électromagnétiques dans l’environnement

de travail, respecter les consignes suivantes :

1 Garder les câbles ensembles en les torsadant ou en les

attachant avec du ruban adhésif.

2 Mettre tous les câbles du côté opposé de l’opérateur.

3 Ne pas courber pas et ne pas entourer pas les câbles autour de

votre corps.

4 Garder le poste de soudage et les câbles le plus loin possible de

vous.

5 Relier la pince de masse le plus près possible de la zone de

soudure.

Consignes relatives aux stimulateurs cardiaques :

Les personnes qui portent un stimulateur cardiaque doivent avant tout

consulter leur docteur. Si vous êtes déclaré apte par votre docteur, il est

alors recommandé de respecter les consignes ci–dessus.

OM-319 Page 9

SECTION 2 – INSTALLATION

2-1. Specifications

Amperes Input at AC Balanced Rated

Load Output; 60 Hz,

Single-Phase/Three-Phase

Rated

Welding Output

200 V 230 V 460 V 575 V

KVA KW

Amperage

Range

Max

OCV

Three-Phase: NEMA

Class I (60) – 300

Amperes, 32 Volts

AC/DC, 60% Duty Cycle

42 37 18 15 14.8 14

Single-Phase: NEMA

Class I (60) – 200

Amperes, 28 Volts

AC/DC, 60% Duty Cycle

51 44 22 18 10.2 9

1–375 A 90

2-2. Dimensions And Weights

Dimensions

C A* 35-1/2 in (910 mm)

B 24 in (615 mm)

C 22-3/4 in (583 mm)

*With lifting eye down

Weight

dim_1 3/96 - ST-800 402 / ST-117 264-C

351 lb (159 kg)

OM-319 Page 10

6 Minutes Welding 4 Minutes Resting

2-3. Duty Cycle And Overheating

Duty Cycle is 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 before

welding.

Y Exceeding duty cycle can

damage unit and void war-

ranty.

60% Duty Cycle:

At 200 Amperes With Single-Phase Input Power

At 300 Amperes With Three-Phase Input Power

Overheating

A or V

Reduce Duty Cycle

Minutes

sduty1 5/95 / ST-136 510-B

B. AC Mode

ssb1.1 10/91 – ST-168 007 / ST-168 006

The volt-ampere curves show the

minimum and maximum voltage

and amperage output capabilities of

the welding power source. Curves

of other settings fall between the

curves shown.

A. DC Mode

2-4. Volt-Ampere Curves

OM-319 Page 11

2-5. Selecting A Location

1 Rating Label

Use rating label to determine input

power needs.

2 Line Disconnect Device

Locate unit near correct input

power supply.

Y Special installation may be

required where gasoline or

volatile liquids are present –

see NEC Article 511 or CEC

Section 20.

Movement

Y Do not move or operate unit

where it could tip.

Tipping

loc_1 3/96 Ref. ST-800 311-B

Location And Airflow

18 in

(460 mm)

18 in

(460 mm)

OM-319 Page 12

2-6. 115 VAC Receptacle, Circuit Breaker, And Shielding Gas Connections

Ref. ST-800 312-A / Ref. ST-158 697-A

1 115 V 15 A AC Receptacle

RC2

2 Circuit Breaker CB1

Receptacle is protected from over-

load by CB1.

Press button to reset breaker.

3 Gas Fittings

Fittings have 5/8-18 right-hand

threads.

4 Cylinder Valve

Open valve slightly so gas flow

blows dirt from valve. Close valve.

5 Regulator/Flowmeter

6 Flow Adjust

Typical flow rate is 15 cfh (cubic feet

per hour).

Route Cables and

hoses under bar.

5/8, 1-1/8 in

2-7. Weld Output Terminals And Selecting Cable Sizes

Y ARC WELDING can cause Electromagnetic Interference.

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 electronic 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.

Total Cable (Copper) Length In Weld Circuit Not Exceeding

100 ft (30 m) Or Less

150 ft

(45 m)

200 ft

(60 m)

250 ft

(70 m)

300 ft

(90 m)

350 ft

(105 m)

400 ft

(120 m)

Weld Output

Terminals

Welding

Amperes

10 – 60%

Duty

Cycle

60 – 100%

Duty

Cycle

10 – 100% Duty Cycle

100 4 4 4 3 2 1 1/0 1/0

150 3 3 2 1 1/0 2/0 3/0 3/0

200 3 2 1 1/0 2/0 3/0 4/0 4/0

250 2 1 1/0 2/0 3/0 4/0 2-2/0 2-2/0

300 1 1/0 2/0 3/0 4/0 2-2/0 2-3/0 2-3/0

350 1/0 2/0 3/0 4/0 2-2/0 2-3/0 2-3/0 2-4/0

400 1/0 2/0 3/0 4/0 2-2/0 2-3/0 2-4/0 2-4/0

Ref. ST-800 312-A

500 2/0 3/0 4/0 2-2/0 2-3/0 2-4/0 3-3/0 3-3/0

*Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. Contact your

distributor for the mm

equivalent weld cable sizes. S-0007-E

OM-319 Page 13

2-8. Remote 14 Receptacle Information

Socket* Information

A 24 volts ac.

B Contact closure to A completes 24 volts

ac contactor control circuit.

C Command reference; 0 to +10 volts dc

output to remote control.

D Remote control circuit common.

AMPERAGE

E 0 to +10 volts dc input command signal

from remote control.

Ref. ST-800 312-A

K Circuit Common.

*The remaining sockets are not used.

2-9. Electrical Service Guide

Single-Phase Three-Phase

Input Voltage

200 230 460 575 200 230 460 575

Input Amperes At Rated Output

51 44 22 18 42 37 18 15

Max Recommended Standard Fuse Or Circuit

Breaker Rating In Amperes

80 70 35 25 60 60 30 20

Min Input Conductor Size In AWG/Kcmil

8 8 12 14 8 10 14 14

Max Recommended Input Conductor Length

In Feet (Meters)

(25)

108

(33)

173

(53)

176

(54)

(28)

(24)

126

(38)

196

(60)

Min Grounding Conductor Size In AWG/Kcmil

8 8 12 14 10 10 14 14

Reference: 1996 National Electrical Code (NEC). S-0092J

OM-319 Page 14

2-10. Placing Jumper Links

Ref. ST-800 314

Check input voltage available at

site.

1 Jumper Link Label

Move jumper links to match input

voltage, and label on unit.

Proceed to Section 2-11.

2 Primary Terminal Board

230 VOLTS

S-164 976

L1 L2 L3

460 VOLTS

L1 L2 L3

575 VOLTS

L1 L2 L3

200 VOLTS

S-072 135-B

L1 L2 L3

230 VOLTS

L1 L2 L3

460 VOLTS

L1 L2 L3

Do not overtighten.

3/8 in

OM-319 Page 15

2-11. Connecting Input Power

input_3 3/96 - Ref. ST-800 314

1 Input Power Connection Label

2 Input And Grounding

Conductors

See Section 2-9.

3 Line Disconnect Device

See Section 2-9.

Reinstall rear cover.

L1 L2 L3

Single-Phase

S-155 124

Three-Phase

Input

IMPORTANT

Input Power Connections

Green Or

Green With

Yellow Stripe(s)

Terminal

Board

GND/

Always Connect Input

Grounding Conductor To

GROUND Stud On Frame First.

3/8, 1/2, 7/16 in

Y Always connect

grounding conductor first.

= GND/PE

Y Always connect

grounding conductor first.

= GND/PE

Three-Phase Connections

Single-Phase Connections

OM-319 Page 16

2-12. Connecting To Automation Connector Receptacle RC12

Ref. ST-801 509 / ST-801 719

1 Main Control Board PC1

2 Automation Connector

Receptacle RC12

3 Terminals 1–6

See chart for terminal functions.

4 Terminal Screws

Loosen terminal screws, insert

wires into terminals, tighten

screws.

Tools Needed:

Electronic Box With Upper

Front Panel Open

Terminal Function

Electrode negative amplitude (0–10 volts)

Ground (circuit common)

4 Electrode Positive amplitude (0–10 volts)

3 Pulse train (0 or 15 volts, controls frequency and balance)

Gas valve (0 off – +15 volts on)

Output contactor (0 off – +15 volts on)

OM-319 Page 17

SECTION 3 – OPERATION

3-1. Controls

ST-800 312-A

1 23 4 5 6 78 9

1 Mode Switch

(See Section 3-3)

2 Amperage Switch

(See Section 3-6)

3 Output Switch And Light

(See Section 3-5)

4 Start Switch

(See Section 3-11)

5 Polarity Switch And Lights

(See Section 3-2)

6 Amperage/Preset Meter

(See Section 3-4)

7 Voltmeter

(See Section 3-4)

8 Amperage Adjustment

Controls (See Section 3-6)

9 AC Frequency Controls

(See Section 3-9)

10 High Temperature Shutdown

Light

11 Over Voltage Shutdown Light

See Section 4-2)

12 Postflow Time Control

(See Section 3-10)

13 AC Balance Controls

(See Section 3-8)

14 Power On/Off Switch

(See Section 3-12)

Y Wear approved ear muffs or

ear plugs if noise exposure

exceeds OSHA limits.

3-2. Polarity Switch And Pilot Lights

Ref. ST-151 180-B

Y Do not use AC output in

damp areas, if movement is

confined, or if there is a dan-

ger of falling. Use AC output

ONLY if required for the

welding process, and then

use a remote output control.

1 Polarity Switch

Use switch to select weld output.

2 Electrode Positive Pilot Light

3 Electrode Negative Pilot Light

Both lights go on when switch is in

AC position.

OM-319 Page 18

3-3. Mode Switch

1 Mode Switch

Use switch to select SMAW or

either GTAW welding process.

Selecting either GTAW position

enables the Start switch and gas

valve; both are disabled when the

SMAW position is selected.

GTAW Trigger Hold functions as

follows:

Press torch switch to start arc.

Switch can be released and arc re-

mains on. Press switch to stop arc.

3-4. Amperage/Preset Meter And Voltmeter

1 Amperage/Preset Meter

Use meter to preset amperage, ac

frequency, and ac balance. Meter

displays average weld amperage

output of unit to nearest ampere

when welding.

2 Voltmeter

Voltmeter displays average voltage

(to the nearest 0.1 V) at the weld

output terminals.

3-5. Output Switch And Pilot Light

Y Weld output terminals are

energized when switch is On

and power is On. Do not

touch torch or electrode and

work clamp at the same time.

1 Output Switch

2 Pilot Light

Use switch to select way of control-

ling unit output.

For weld output, place switch in On

position.

For remote output control, place

switch in Remote 14 position (see

Section 2-8).

Pilot light stays on continuously in

On position, but only when contac-

tor is energized in Remote 14

position.

OM-319 Page 19

3-6. Amperage Adjustment Controls

Ref. ST-151 180-B / Ref. S-0865

1 Amperage Control Switch

Use switch to select way of control-

ling amperage adjustment.

For front panel control, place switch

in Panel position.

For remote control, place switch in

Remote 14 position.

2 Electrode Positive Amperage

Adjustment Control And

Pushbutton

Set Polarity switch to AC, press

pushbutton and use control and

Amperage/Preset meter to adjust

weld amperage for positive half of

ac square wave.

When Polarity switch is in Electrode

Positive position, pushbutton does

not need to be pressed to adjust

control.

3 Electrode Negative Amperage

Adjustment Control And

Pushbutton

Set Polarity switch to AC, press

pushbutton and use control and

Amperage/Preset meter to adjust

weld amperage for negative half of

ac square wave.

When Polarity switch is in Electrode

Negative position, pushbutton does

not need to be pressed to adjust

control.

The controls require 3 turns to go

from minimum to maximum, and

may be adjusted while welding.

Set Electrode Negative Amperage Level

Example: Setting Amperage For AC Output:

AMPERAGE/PRESET

Set Electrode Positive Amperage Level

AMPERAGE/PRESET

Output =

+150 A Electrode Positve

–250 A Electrode Negative

If Polarity switch is set incorrectly, the Amper-

age/Preset meter goes blank when the push-

button is pressed.

OM-319 Page 20

3-7. Examples Of Combination Remote Amperage Control

Ref. ST-151 180-B / S-0621-C / S-0774 / ST-159 059

1 Fingertip Control

2 Remote Foot Control

3 Remote Hand Control

See examples below.

Min = 1 A AC

Percentage Of Range = 50%

Max = 75 A EP (50% of 1 to 150)/

125 A EN (50% of 1 to 250)

AMPERAGE/PRESET

Set Switches Set Output

Min=1A AC

Max=150 A EP/250 A EN

Set Desired Maximum Amperages

Adjust Remote Control

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Miller KK216882 Owner's manual

Brand: Miller

Model: KK216882

Category: Welding System

Type: Owner's manual

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