Miller IGB Owner's manual

Brand: Miller

Model: IGB

Type: Owner's manual

This manual is also suitable for

OWNERS

MANUAL

June

1995

FORM:

OM-156

165B

IGBT/MOSFET

Tester

156

114

Use

above

FORM

number

when

ordering

extra

manuals.

£~

WARNING

ELECTRIC

SHOCK

can

kill;

SIGNIFICANT

DC

VOLTAGE

exists

after

removal

of

input

power.



Do

not

touch

live

electrical

parts.



Turn

Off

welding

power

source,

wait

60

seconds,

measure

voltage

on

input

capacitors

according

to

Technical

Manual,

and

be

sure

voltage

is

near

zero

before

making

or

changing

meter

lead

connections

and

before

touching

any

parts.

1-1.

IGBT/MOSFET

Tester

Information

on

circuit

boards.

STATIC

ELECTRICITY

can



Put

on

grounded

wrist

strap

boards

or

parts.



Use

proper

static-proof

bags.

damag

BEFORE

e

parts

handling

Have

only

qualified

persons

familiar

with

and

following

standard

safety

practices

perform

troubleshooting

procedures.

smwarn2.5

10193

1

IGBT/MOSFET

Tester

1

2

3

Before

use,

install

9

volt

battery.

Yellow

To

check

battery,

connect

Red

and

Black

leads

together;

test

light

(LED)

=

On;

battery

okay.

.

2

Test

Button

3

Test

Light

(LED)

Black

~

Red

S0880

1-2.

IGBT

Power

Module

Testing

Procedure

~

Step

1.

Check

IGBT

module

for

GI

(BI)

:

cracks

in

side

of

case

or

a

separa

tion

of

case

from

its

base

plate.

a

Static

Hazard.

Replace

any

damaged

part.

Put

on

grounded

wrist

strap.

Step

2.

Mark

and

disconnect

leads

from

Cl,

C2/E1,

and

E2

terminals.

Step

3.

Disconnect

gate

lead

plug

from

circuit

board.

Step

4.

Hook

up

ALL

tester

leads

to

perform

Test

1.

LED

On

=

Shorted;

replace

part

Step

5.

Press

button.

LED

Off

=

Fails

test;

replace

part

LED

On

=

Passes

test

Step

6.

Repeat

Steps

4

and

5

for

Test

2.

G1

(B1)

Gate

1

orBasel

G2

(B2)

Gate

2

or

Base

2

Cl

Collector

1

02/El

Collector

2/Emitter

1

E2

Emitter

2

ST-801

132/

S.0880

/

S-0664

Test

1

1-3.

MOSFET

Power

Transistor

Testing

Procedure

G

Gate

D

Drain

S

Source

S-08801

S-0663

1-4.

Electrical

Diagrams

1-5.

Parts

List

Dia.

Part

Mkgs.

No.

Description

Quantity

Complete

Assembly

Dl

. . .

083

850

...

LIGHT,

md

red

lens

2V

LED

1

P81

...

175

389

...

SWITCH,

PB

MC

NO

SPDT

1OA

115VAC

1

Ri

.

. .

078

431

...

RESISTOR,

C

.25W

330

ohm

1

R2

. . .

072

561

...

RESISTOR,

MF

.25W

267K

ohm

1



. .

R3

 . .

081

833...

RESISTOR,

CF

.25W

2.7

meg

ohm

1

R4

. . .

092

648...

RESISTOR,

WW

fxd

zero

ohm

1

iT.

.

. .

038

785

...

STRIP,

terminal

3P

solder

1

157

475

...

CASE

SECTION,

top/sides

1

157

476

...

CASE

SECTION,

bottom/ends

1

156 170

...

HOLDER,

battery

9V

1

138

044

...

BUSHING,

strain

relief

.120/.150

ID

x

.500mtg

hole

1

604

825

...

CABLE,

port

No.

18

3/c

(order

by

if)

2ft

173

771

...

CLIP,

alligator

2

173774...

CLIP,

micro-gator

1

173

772

...

INSULATOR,

alligator

clip

(red)

1

173

773...

INSULATOR,

alligator

clip

(black)

1

173

775...

INSULATOR,

micro-gator

clip

(yellow)

1

a

Static

Hazard.

Put

on

grounded

wrIst

strap.

D

Red

Step

1.

Remove

transistor

from

circuit

board.

Step

2.

Hook

up

ALL

tester

leads.

LED

On

=

Shorted;

replace

part

Step

3.

Press

button.

LED

Off

=

Fails

test;

replace

part

LED

On

=

Passes

test

Ls

B/G

23

II

0

0

0

2

/

51/

54

BLIC

YEL

Circuit

Diagram

5A-156

115-B

Wiring

Diagram

RED

5A-156

116-A

OM-156

165

Page

2

1
2

Miller IGB Owner's manual

Brand: Miller

Model: IGB

Type: Owner's manual

This manual is also suitable for

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