Miller XMT 400 CC User manual

Miller

April

1994

Form:

OM-155

152B

Effective

With

Serial

No.

KE621

826

OWNERS

MANUAL

XMTﬁ

400



CC/DC

Welding

Power

Source



For

GTAW,

GTAW-P,

And

SMAW

Welding



400

Amperes,

Volts

60%

Duty

Cycle



Uses

Three-Phase

Input

Power



Protection

For

Control

Circuit,

VAC,

And

Overheating



14-Pin

Remote

Control

Receptacle



See

Rear

Cover

For

Options

And

Accessories





Read

and

these

instructions

and

all

safety

blocks

carefully.

Have

only

trained

and

qualified

persons

install,

operate,

service

this

unit.

Call

your

distributor

you

not

understand

the

directions.



Give

this

manual

the

operator.

1I~fl

For

help,

call

your

distributor



or:

MILLER

Electric

Mfg.

Co.,

P.O.

Box

1079,

Appleton,

54912

414-734-9821

cover

1/94



ST-i

303-A

1994

MILLER

Electric

Mfg.

Co.

PRINTED

USA

MILLERS

TRUE

BLUETM

LIMITED

WARRANTY

Effective

January

1992

(Equipment

with

serial

number

preface

KC

newer)

This

limited

warranty

supersedes

all

MILLER

warranties

and

exclusive

with

other

guarantees

warranties

expressed

implied.

LIMITED

WARRANTY

Subject

the

terms

and

conditions

below.

MILLER

Electric

MIg.

Co.,

Appleton,

Wisconsin,

warrants

its

original

retail

purchaser

that

new

MILLER

equipment

sold

after

the

effective

date

this

limited

warranty

tree

facts

material

and

workmanship

the

time

shipped

MILLER.

THIS

WAR

RANTY

EXPRESSLY

LIEU

ALL

OTHER

WARRANTIES.

EXPRESS

IMPUED,

INCLUDING

THE

WARRANTIES

MERCHANTABILITY

AND

FIT

NESS.

Within

the

warranty

periods

listed

below.

MILLER

will

repair

replace

any

war

ranted

parts

components

that

fail

due

such

defects

material

workmanship.

MILLER

must

notified

writing

within

thIrty

(30)

days

such

defect

failure,

which

time

MILLER

will

provide

instructions

the

warranty

claim

procedures

followed.

MILLER

shall

honor

warranty

claims

warranted

equipment

listed

below

the

event

auch

failure

within

the

warranty

time

periods.

All

warranty

time

periods

atari

the

date

that

the

equIpment

was

delivered

the

Original

retail

purchaser,

one

year

after

the

equipment

sent

the

distributor.

5YearsParts3YearaLabor



Original

main

power

rectifiers

2.~

3YearsPartaandLabor



Transformer/Rectifier

Power

Sources



Plasma

Arc

Cutting

Power

Sources

Semi-Automatic

and

Automatic

Wire

Feeders



Robots

Years



Parts

and

Labor



Engine

Driven

Welding

Generators

(NOTE:.

Engines

are

warranted

separately

the

engine

manufacturer

for

period

iwo

years.)



Air

Compressors

Year



Parts

and

Labor

Motor

Driven

Guns



Process

Controllers



Water

Coolant

Systems



HFUnits



Grids



Spot

Welders

Load

Banks



SDX

Transformers



Running

Gear/Trailers



Field

Options

(NOTE:

Field

options

are

covered

under

True

BIueTM

for

the

remaining

warranty

period

the

product

they

are

installed

in,

for

minimum

one

year

whichever

is greater.)

Months



Batteries

Days



Parts

and

Labor



MiG

GunalTIG

Torches



Plasma

Cutting

Torches



Remote

Controls



Accessory

Kits



Replacement

Parts

MILLERS

True

BlueTM

Limited

Warranty

shall

not

apply

to:

Items

fumlshed

MILLER.

but

manufactured

others,

such

engInes

trade

accessories.

These

items

are

covered

the

manufacturers

warranty,

any.

Consumable

components;

such

contact

tips,

cutting

nozzlas,

contactors

and

relays

parts

that

fail

due

normal

wear.

Equipment

that

has

been

modified

any

party

Other

than

MILLER.

equip

ment

that

has

been

improperly

installed,

improperly

operatod

misused

based

upon

industry

standards,

equipment

whIch

has

not

had

reasonable

and

necessary

maintenance,

equipment

which

has

been

used

for

operation

outside

the

specifications

for

the

equipment.

MILLER

PRODUCTS

ARE

INTENDED

FOR

PURCHASE

AND

USE

COMMER

CIAL/INDUSTRIAL

USERS

AND

PERSONS

TRAINED

AND

EXPERIENCED

THE USE

AND

MAINTENANCE

WELDING

EQUiPMENT.

the

event

warranty

claim

covered

this

warranty,

the

exclusive

remedies

shall

be,

MILLERS

option:

(I)

repair~

(2)

replacement;

or,

where

authorized

writing

MILLER

inappropriate

cases,

(3)

the

reasonable

Cost

repair

replace-

mental

authorized

MILLER

service

station;

(4)

payment

edit

for

the

pur

chase

price

(less

reasonable

depreciation

based

upon

actual

use)

upon

return

the

goods

customers

risk

and

expense.

MILLERS

option

repair

replacement

will

FOB.,

Factory

atAppleton.

Wisconsin,

F.O.B.

ala

MILLER

authorized

ser

vice

facility

determined

MILLER.

Therefore

compensation

reimburse

ment

for

transportation

costa

any

kind

will

allowed.

THE

EXTENT

PERMITTEDBY

LAW,

THE

REMEDIES

PROVIDED

HEREIN

ARE

THE

SOLE

AND

EXCLUSIVE

REMEDIES.

EVENT

SHALL

MILLER

LIABLE

FOR

DIRECT,

INDIRECT,

SPECIAL,

INCIDENTAL

CONSEQUENTIAL

DAMAGES

(INCLUDING

LOSS OF

PROFIT),

WHETHER

BASED

CON

TRACT.

TORT

ANY

OTHER

LEGAL

THEORY.

ANY

EXPRESS

WARRANTY

NOT

PROVIDED

HEREIN

AND

ANY

IMPLIED

WAR

RANTY,

GUARANTY

REPRESENTATION

ASTO

PERFORMANCE,

AND

ANY

REMEDY

FOR

BREACH

CONTRACT

TORT

ANY

OIHER

LEGAL

THEORY

WHICH,

BUT

FOR

THIS

PROVISION,

MIGHT

ARISE

IMPLICATION.

OPERATION

LAW,

CUSTOM

TRADE

COURSE

DEALING,

CLUDING

ANY

IMPLIED

WARRANTY

MERCHANTABILITY

FITNESS

FOR

PARTICULAR

PURPOSE,

WITH

RESPECT

ANY

AND

ALL

EQUIPMENT

FURNISHED

MILLER

EXCLUDED

AND

DISCLAIMED

MILLER.

Some

states

the

U.S.A.

not

allow

limitations

how

long

implied

warranty

lasts,

the

exclusion

Incidental,

indirect,

special

consequential

damages,

the

above

limitation

exclusion

may

not

apply

you.

This

warranty

provides

spe

cific

legal

rights,

and

other

rights

may

available,

but

may

vary

from

state

state.

Canada,

legislation

some

provinces

provides

for

certain

additional

warranties

remedies

other

than

stated

herein,

and

the

extent

that

they

may

not

waived,

the

lImitations

and

exclusions

set out

above

may

not

apply.

This

Limited

Warranty

provides

specific

legal

rights,

and

other

rights

may

available,

but

may

vary

from

province

province.

RECEIVING-HANDLING

Before

Unpacking

equipment,

check

carton

for

any

damage

that

may

have

occurred

during

shipment.

File

any

claims

for

loss

damage

with the

delivering

carrier.

Assistance

for

filing

settling

claims

may

obtained

from

distributor

and/or

equipment

manufacturers

Transportation

Department.

When

requesting

information

about

this

equipment,

always

provide

Model

Designation

and

Serial

Style

Number.

Use

the

following

spaces

record

Model

Designation

and

Serial

Style

Number

your

Unit.

The

information

located

the

rating

label

nameplate.

Model

Serial

Style

No.

Date

Purchase

miller

9/93

ERRATA

SHEET

July

19,

1994

FORM:

OM-155

152B

Use

above

FORM

number

when

ordering

extra

manuals.

After

this

manual

was

printed,

refinements

equipment

design

occurred.

This

sheet

lists

exceptions

data

appearing

later

this

manual.

CHANGES

SECTION

PARTS

LIST

Change

Parts

List

follows:

Part

No.

Replaced

With

Description

Quantity

25-

Added

29-

152300

30-

166

250

169772

169402.

169

403

SPACER,

case

(Effw/KE679384)

HEATSINK,IGBTLH

HEAT

SINK,

IGBT

**First

digit

represents

page



digits

following

dash

represent

item

no.

SURE TO

PROVIDE

MODEL

AND

SERIAL

NUMBER

WHEN

ORDERING

REPLACEMENT

PARTS.

ARC

WELDING

SAFETY

PRECAUTIONS

WARNING

ARC

WELDING

can

hazardous.

PROTECT

YOURSELF

AND

OTHERS

FROM

POSSIBLE

SERIOUS

INJURY

DEATH.

KEEP

CHILDREN

AWAY.

PACEMAKER

WEARERS

KEEP

AWAY

UNTIL

CONSULTING

YOUR

DOCTOR.

welding,

most

jobs,

exposure

certain

hazards

occurs.

Welding

safe

when

precautions

are

taken.

The

safety

information

given

below

only

summary

the

complete

safety

information

that

will

found

the

Safety

Standards

listed

the

page.

Read

and

all

Safety

Standards.

HAVE

ALL

INSTALLATION,

OPERATION,

MAINTENANCE,

AND

REPAIR

WORK

PERFORMED

ONLY

QUALIFIED

PEOPLE.

ELECTRIC

SHOCK

can

kill.

Touching

live

electrical

parts

can

cause

fatal

shocks

severe

burns.

The

electrode

and

work

circuit

electrically

live

whenever

the

output

on. The

input

power

circuit

and

machine

internal

circuits

are

also

live

when

power

on.

semiautomatic

automatic

wire

welding,

the

wire,

wire

reel,

drive

roll

housing,

and

all

metal

parts

touchin9

the

welding

wire

are

electrically

live.

Incorrectly

installed

improperly

grounded

equipment

hazard.

not

touch

live

electrical

parts.

Wear

dry,

hole-free

insulating

gloves

and

body

protection.

Insulate

yourself

from

work

and

ground

using

dry

insulating

mats

covers

big

enough

prevent

any

physical

contact

with

the

work

ground.

Disconnect

input

power

stop

engine

before

installing

servicing

this

equipment.

Lockout/tagout

input

poweraccording

OSHA

CFR

1910.147

(see

Safety

Standards).

Properly

install

and

ground

this

equipment

according

its

Owners

Manual and

national,

state,

and

local

codes.

Always

verify

the

supply

ground



check

and

sure

that

input

oower

cord

around

wire

Drooerlv

connected

around

terminal

disconnect

box

that

cord

plug

connected

properly

grounded

receptacle

outlet.

When

making

input

connections,

attach

proper

grounding

conductor

first



double-check

connections.

Frequently

inspect

input

power

cord

for

damage

bare

wiring



replace

cord

immediately

damaged



bare

wiring

can

kill.

Turn

off

all

equipment

when

not

use.

10.

not

use

worn,

damaged,

undersized,

poorly

spliced

cables.

11.

not

drape

cables

over

your

body.

12.

earth

grounding

the

workpiece

required,

ground

directly

with

separate

cable



not

use

work

clamp

work

cable.

13.

not

touch

electrode

you

are

contact

with

the

work,

ground,

another

electrode

from

different

machine.

14.

Use

only

well-maintained

equipment.

Repair

replace

damaged

parts

once.

Maintain

unit

according

manual.

15.

Wear

safety

harness

working

above

floor

level.

16.

Keep

all

panels

and

covers

securely

place.

17.

Clamp

work

cable

with

good

metal-to-metal

contact

workoiece

worktable

near

the

weld

oractical.

(/~

ARC

RAYS

can

burn

eyes

and

skin;

NOISE

can

damage

hearing;

FLYING

SLAG

SPARKS

can

injure

eyes.

Arc

rays

from

the

welding

process

produce

intense

visible

and

invisible

(ultraviolet

and

infrared)

rays

that

can

burn

eyes

and

skin.

Noise

from

some

processes

can

damage

hearing.

Chipping,

grinding,

and

welds

ARC

RAYS

Wear

welding

helmet

fitted

with

proper

shade

filter

protect

yourface

and

eyes

when

welding

orwatching

(see

ANSI

Z49.1

and

Z87.1

listed

Safety

Standards).

Wear

approved

safety

glasses

with

side

shields.

Use

protective

screens

barriers

protect

others

from

flash

cooling

throw

off

pieces

metal

slag.

and

glare;

warn

others

not

watch

the

arc.

NOISE

Wear

protective

clothing

made

from

durable,

flame-resistant

Use

approved

ear

plugs

ear

muffs

noise

level

high.

material

(wool

and

leather)

and

foot

protection.

FUMES

AND

GASES

can

hazardous

Work

confined

space

only

if it

well

ventilated,

while

your

health.

Welding

produces

fumes

and

gases.

Breathing

these

.......J

fumes

and

gases

can

hazardous

your

health,

Keep

your

head

out

the

fumes.

not

breathe

the

fumes.

inside,

ventilate

the

area

and/or

use

exhaust

the

arc

wearing

air-supplied

respirator.

Always

have

trained

watchperson

nearby.

Welding

fumes

and

gases

can

displace

air

and

lower

the

oxygen

level

causing

injury

death.

sure

the

breathing

air

safe.

not

weld

locations

near

degreasing,

cleaning,

spraying

operations.

The

heat

and

rays

the

arc

can

react

with

vapors

form

highly

toxic

and

irritating

gases.

remove

welding

fumes

and

gases.

ventilation

poor,

use an

approved

air-supplied

respirator.

not

weld

coated

metals,

such

galvanized,

lead,

cadmium

plated

steel,

unless

the

coating

removed

from

the

Read

the

Material

Safety

Data

Sheets

(MSDSs)

and

the

weld

area,

the

area

well

ventilated,

and

necessary,

while

manufacturers

instruction

for

metals,

consumables,

coatings,

wearing

air-supplied

respirator.

The

coatings

and

any metals

cleaners,

and

degreasers.

containing

these

elements

can

give

off

toxic

fumes

welded.

CYLINDERS

can

explode

damaged.

Never

drape

welding

torch

over

gas

cylinder.

Shielding

gas

cylinders

contain

gas

under

high

pressure.

damaged,

cylinder

can

explode.

Since

gas

cylinders

are

normally

part

the

welding

process,

sure

treat

them

carefully.

Never

allow

welding

electrode

touch

any

cylinder.

Never

weld

pressurized

cylinder



explosion

will

result.

Use

only

correct

shielding

gas

cylinders,

regulators,

hoses,

and

fittings

designed

for

the

specific

application;

maintain

them

and

associated

parts

good

condition.

Protect

compressed

gas

cylinders

from

excessive

heat,

Turn

face

away

from

valve

outlet

when

opening

cylinder

valve.

mechanical

shocks,

slag,

open

flames,

sparks.

and

arcs.

Keep

protective

cap

place

over

valve

except

when

cylinder

Install

cylinders

upright

position

securing

stationary

use

connected

for

use.

support

cylinder

rack

prevent

falling

tipping.

10.

Read

and

instructions

compressed

gas

cylinders,

Keep

cylinders

away

from

any

welding

other

electrical

associatedequipment,andCGApublicationP-1

listedinSafety

circuits.

Standards.

srl1.1

2194

WELDING

can

cause

fire

explosion.

Welding

closed

containers,

such

tanks,

drums,

pipes,

can

cause

them

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

electrode

metal

objects

can

cause

sparks,

explosion,

overheating,

fire.

Check

and

sure

the

area

safe

before

doing

any

welding.

Protect

yourself

and

others

from

flying

sparks

and

hot

metal.

not

weld

where

flying

sparks

can

strike

flammable

material.

Remove

all

flammables

within

(10.7

the

welding

arc.

this

not

possible,

tightly

cover

them

with

approved

covers.

alert

that

welding

sparks

and

hot

materials

from

welding

can

easily

through

small

cracks

and

openings

adjacent

areas.

Watch

for

fire,

and

keep

fire

extinguisher

nearby.

aware

that

welding

ceiling,

floor,

bulkhead,

partition

can

cause

fire

the

hidden

side.

not

weld

closed

containers

such

tanks,

drums,

pipes,

unless

they

are

properly

prepared

according

AWS

F4.

(see

Safety

Standards).

Connect

work

cable

the

work

the

welding

area

practical

prevent

welding

current

from

traveling

long,

possibly

unknown

paths

and

causing

electric

shock

and

fire

hazards.

not

use

welder

thaw

frozen

pipes.

10.

Remove

stick

electrode

from

holder

cut

off

welding

wire

contact

tip

when

not

use.

11.

Wear

oil-free

protective

garments

such

leather

gloves,

heavy

shirt,

cuffless

trousers,

high

shoes,

and

cap.

12.

Remove

any

combustibles,

such

butane

lighter

matches,

from

your

person

before

doing

any

welding.

ENGINE

FUEL

can

cause

fire

explosion.

Engine

fuel

highly

flammable.

Stop

engine

and

let

cool

off

before

checking

adding

fuel.

not

add

fuel

while

smoking

unit

near

any

sparks

MOVING

PARTS

can

cause

injury.

Moving

parts,

such

fans,

rotors,

and

belts

can

cut

fingers

and

hands

and

catch loose

clothing.

Keep

all

doors,

panels,

covers,

and

guards

closed

and

securely

place.

Stoo

engine

before

installing

connecting

unit

SPARKS

can

cause

BATTERY

GASES

EXPLODE;

BATTERY

ACID

can

burn

eyes

and

skin.

Batteries

contain

acid

and

generate

explosive

gases.

Have

only

qualified

people

remove

guards

covers

for

maintenance

and

troubleshooting

necessary.

prevent

accidental

starting

during

servicing,

disconnect

negative

()

battery

cable

from

battery.

Keep

hands,

hair,

loose

clothing,

and

tools

away

from

moving

parts.

Reinstall

panels

guards

and

doors

when

servicing

finished

and

before

starting

engine.

Always

wear

face

shield

when

working

battery.

Stop

engine

before

disconnecting

connecting

battery

cables.

not

allow

tools

cause

sparks

when

working

battery.

not

use

welder

charge

batteries

jump

start

vehicles.

PRINCIPAL

SAFETY

STANDARDS

Safety

Welding

and

Cutting,

ANSI

Standard

Z49.

from

American

Welding

Society,

550

N.W.

LeJeune

Rd,

Miami

33126

Safety

and

Health

Standards,

OSHA

CFR

1910,

from

Superinten

dent

Documents,

U.S.

Government

Printing

Office,

Washington,

D.C.

20402.

Recommended

Safe

Practices

for

the

Preparafion

for

Welding

and

Cutting

Containers

That

Have

Held

Hazardous

Substances,

Ameri

can

Welding

Society

Standard

AWS

F4.i,from

American

Welding

ciety,

550

N.W.

LeJeune

Rd,

Miami,

33126

National

Electrical

Code,

NFPA

Standard

70,

from

National

Fire

Pro

tection

Association,

Batterymarch

Park,

Quincy,

02269.

Safe

Handling

Compressed

Gases

Cylinders,

CGA

Pamphlet

P-i,

from

Compressed

Gas

Association,

1235

Jefferson

Davis

High

way,

Suite

501,

Arlington,

22202.

Code

for

Safety

Welding

and

Cutting,

GSA

Standard

17.2,

from

Canadian

Standards

Association,

Standards

Sales,

178

Rexdale

Bou

levard,

Rexdate.

Ontario,

Canada

M9W

R3.

Safe

Practices

For

Occupation

And

Educational

Eye

And

Face

Protec

tion,

ANSI

Standard

Z87.

from

American

National

Standards

Institute,

1430

Broadway,

New

York,

10018.

Cutting

And

Welding

Processes,

NFPA

Standard

from

National

Fire

Protection

Association,

Batterymarch

Park,

Qilincy,

02269.

WARNING

ENGINE

EXHAUST

GASES

can

kill.

Use

equipment

outside

open,

well-ventilated

areas.

ENGINES

can

hazardous.

Engines

produce

harmful

exhaust

gases.

used

closed

area,

vent

engine

exhaust

outside

and

away

from

any

building

air

intakes.

not

overfill

tank



allow

room

for

fuel

expand.

not

spill

fuel.

fuel

spilled,

clean

before

starting

engine.

Observe

correct

polarity

(

and

)

batteries.

STEAM

AND

PRESSURIZED

HOT

the

engine

warm

and

checking

needed,

steps

COOLANT

can

skin.

burn

face,

eyes,

and

Wear

safety

glasses

and

gloves

and

put

rag

over

cap.

best

check

coolant

level

when

engine

cold

avoid

scalding.

Turn

cap

slightly

and

let

pressure

escape

slowly

before

completely

removing

cap.

srl.1.1

2/94

EMF

INFORMATION

TABLE

CONTENTS

SECTION



SAFETY

INFORMATION

SECTION

2

SPECIFICATIONS

2-1.

Volt-Ampere

Curves

2-2.

Duty

Cycle

SECTION

3-INSTALLATION

3-1.

Typical

Process

Connections

3-2.

Selecting

Location

And

Moving

Welding

Power

Source

3-3.

Selecting

And

Preparing

Weld

Output

Cables

3-4.

Connecting

Weld

Output

Receptacles

3-5.

Remote

Receptacle

Information

And

Connections

3-6.

Connecting

Input

Power

SECTION

4-OPERATION

SECTION

5

MAINTENANCE

TROUBLESHOOTING

5-1.

Routine

Maintenance

5-2.

Removing

Top

Case

And

Measuring

Input

Capacitor

Voltage

5-3.

Overload

Protection

5-4.

Changing

AmperageNoltage

Meter

Hold

Function

5-5.

Troubleshooting

SECTION

6

ELECTRICAL

DIAGRAMS

SECTION

TUNGSTEN

ELECTRODE

7-1.

Selecting

Tungsten

Electrode

7-2.

Preparing

Tungsten

SECTION

8

PARTS

LIST

Figure

8-1.

Main

Assembly

Figure

8-2.

Panel,

Front

w/Components

Figure

8-3.

Chassis,

Mid

OM-155

152B4~94

NOTE

Considerations

About

Welding

And

The

Effects

Low

Frequency

Electric

And

Magnetic

Fields

The

following

quotation

from

the

General

Conclusions

Section

the

U.S.

Congress,

Office

Technology

Assessment,

Biological

Effects

Power

Frequency

Electric

Magnetic

Fields



Backg

round

Paper,

OTA-BP-E-53

(Washington,

DC:

U.S.

Government

Printing

Office,

May

1989):.

there

now

very

large

volume

scientific

findings

based

experiments

the

cellular

level

and

from

studies

with

animals

and

people

which

clearly

establish

that

low

frequency

magnetic

fields

can

interact

with,

and

produce

changes

in,

biological

systems.

While

most

this

work

very

high

quality,

the

results

are

complex.

Current

scientific

understanding

does

not

yet

allow

interpret

the

evidence

single

coherent

framework.

Even

frustrating,

does

not

yet

allow

draw

definite

conclusions

about

questions

possible

risk

offer

clear

science-based

advice

strategies

minimize

avoid

potential

risks.

reduce

magnetic

fields

the

workplace,

use

the

following

procedures:

Keep

cables

together

twisting

taping

them.

Arrange

cables

one

side

and

away

from

the

operator.

not

coil

drape

cables

around

the

body.

Keep

welding

power

source

and

cables

far

away

practical.

Connect

work

clamp

workpiece

the

weld

possible.

About

Pacemakers:

The

above

procedures

are

among

those

also

normally

recommended

for

pacemaker

wearers.

Consult

your

doctor

for

complete

information.

modlO.1

4/93

SECTION

SAFETY

INFORMATION



Read

all

safety

messages

throughout

this

manual.



Obey

all

safety

messages

avoid

injury.



Learn

the

meaning

WARNING

and

CAUTION.

Figure

1-1.

Safety

Information

SECTION

SPECIFICATIONS

Table

2-1.

Welding

Power

Source

modl.1

2/93

2 2

CAUTION

ELECTRIC

SHOCK

can

kIIl.~



MOVING

PARTS

can

Injure.

instslling

sersicing.



not

touch

live

electncal

parts.

I~~III~I.



Keep

away

from

moving

parts.



Keep

all

panels

and

covers

closed



Disconnect

input

power

before

when

operating.

WARNING

Safety

Alert

Symbol

Signal

Word

WARNING

means

possible

death

serious

iniury

can

happen.

CAUTION

means

possible

minor

injury

equipment

damage

can

happen.

Statement

Hazard

And

Result

Safety

Instructions

Avoid

Hazard

5Hazard

Symbol

(If

Available)

Safety

Banner

Read

safety

blocks

for

each

sym

bol

shown.

NOTE

Special

instructions

for

best

oper

ation



not

safety.

READ

SAFETY

BLOCKS

start

SectIon

3-1

before

proceeding.

7H

NOTE

Turn

Off

switch

when

using

high

frequency.

Specification

Type

Output

Rated

Weld

Output

Description

Type

Input

Power

Input

Amperes

Rated

Output

KVA/KW

Used

Rated

Output

Amperage

Range

Max.

Open-Circuit

Voltage

Welding

Processes

Constant

Current

(CC),

Direct

Current

(DC)

400

Amperes,

Volts

60%

Duty

Cycle;

300

Amperes,

Volts

100%

Duty

Cycle

(See

Section

2-2)

380

415

Volts

AC;

Hz;

Three-Phase

32.6

380

V.30.4

415

(60%

Duty

Cycle);

380

V.21.6

415

(100%

Duty

Cycle)

21.7

kVA/16.6

5-400

Volts

Scratch

Start

Gas

Tungsten

Arc

(GTAW),

Scratch

Start

Gas

Tungsten

Arc

Pulsed

(GTAW-P),

Shielded

Metal

Arc

(SMAW)

Welding

13.1

Length:

21-3/4

(522

mm);

Width:

(305

mm);

Height:

17-3/8

(441

mm)

Net:

(35

kg);

Ship:

(37

kg)

Input

Power

Cord

Overall

Dimensions

Weight

OM-155

152

Page

2-1.

Volt-Ampere

Curves

Figure

2-1.

Volt-Ampere

Curves

2-2.

Duty

Cycle

CAUTION

WELDING

LONGER

THAN

RATED

DUTY

CYCLE

can

damage

unit

and

void

warranty.

not

weld

rated

load

longer

than

shown

below.

wam7.1

8/93

The

volt-ampere

curves

show

the

minimum

and

maximum

voltage

and

amperage

output

capabilities

the

welding

power

source.

Curves

other

settings

fall

tween

the

curves

shown.

ssbl.1

10/91

SB-139

721

100

150

200

250

300

350

400

450

500

AMPERES

Definition

Charl

Duty

Cycle

percentage

minutes

that

unit

can

weld

rated

load

without

overheating.

Minutes

100%

Duty

Cycle

300

Amperes

Continuous

Welding

60%

Duty

Cycle

400

Amperes

100

Minutes

Welding

Minutes

Resting

sbl.4

8/93



SB-132

583

Figure

2-2.

Duty

Cycle

Chart

20 25

7080

DUTY

CYCLE

OM-155

152

Page

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