Miller IGB Owner's manual

Brand: Miller

Model: IGB

Type: Owner's manual

This manual is also suitable for

OWNERS

MANUAL

IGBT/MOSFET

Tester

156

114

~F~bruary

1993

FORM:

OM-156

165A

Use

above

FORM

number

when

ordering

extra

manuals.

4~

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,

disconnect

input

power,

wait

60

seconds,

measure

voltage

on

input

capacitors

according

to

Service

Manual,

and

wait

for

voltage

to

drop

to

zero

before

touching

any

parts.



Have

only

qualified

persons

familiar

with

and

following

standard

safety

practices

perform

troubleshootina

łrocedures.

STATIC

ELECTRICITY

can

damage

parts

and

parts

on

circuit

boards.



Put

on

grounded

wrist

strap

BEFORE

handling

boards

or

parts.



Use

proper

static-proof

bags.

Before

use,

install

9V

battery.

To

check

battery,

connect

RED

and

BLACK

leads

together;

test

light

(LED)

=

ON;

battery

OK.

MOSFET

Testing

Procedure

#1

2\

\1

5

flrro)

~

~

1OJ~

Actual

Part

3

1

MOSFET

Power

Transistor

Remove

transistor

from

circuit

board.

Circuit

Diagram

Symbol

G

2

Gate

(G)

3

Drain

(D)

4

Alternate

Source

(AS)



Not

Tested

5

Source

(5)

6

IGBT/MOSFET

Tester

7

Test

Button

8

Test

Light

(LED)

Hook

up

tester.

ON

=

Shorted;

replace

part

Press

button.

OFF

=

Fails

test;

replace

part

ON

=

Passes

test

MOSFET

Testing

Procedure

#2

a

Static

Hazard.

Put

on

grounded

wrist

strap.

Dl

2

3h~:

S-071

7

/

S-0663

Si

Actual

Part

Circuit

Diagram

Symbol

S2

1

MOSFET

Power

Transistor

Check

plastic

case

for

cracks

in

side

of

case

or

a

separation

of

case

from

its

base

plate.

Replace

any

damaged

part.

Mark

and

disconnect

all

leads

from

power

transistor.

2

Source

2

(S2)

3

Gate

2

(G2)

4

Drain

2,

Source

1

(D2,

Si)

5

Source

2

(52)

6

Drain

1(01)

7

Source

I

(Si)

8

Gate

1

(Gi)

9

IGBT/MOSFET

Tester

10

Test

Button

11

Test

Light

(LED)

Hook

up

tester.

ON

=

Shorted;

replace

part

Press

button.

OFF

=

Fails

test;

replace

part

ON

=

Passes

test

S-0717

/

5~O666

9

10

ii

1o~

a

Static

Hazard.

Put

on

grounded

wrist

strap.

Dl

PB1

Ri

R2

R3

R4

iT

083

850

113333

078431

072561

081

833

092

648

038

785

157475

157476

156 170

138044

604

825

154095

154096..

1

1

1

1

1

1

1

2ff

1

1

IGBT

lure

4

Actual

Part

Gl

(Bl)

~

El

El

G2

(B2)

Circuit

Diagram

Symbol

E2

I

IGBT

Power

Transistor

Check

plastic

case

for

cracks

in

side

of

case

or

a

separation

of

case

from

its

base

plate.

Replace

any

damaged

part.

Mark

and

disconnect

all

leads

from

power

transistor.

2

Emitter

2

(E2)

3

Gate

2

(G2)

or

Base

2

(B2)

4

Collector

2,

Emitter

I

(C2,

El)

5

Emitter

2

(E2)

6

Collector

I

(Cl)

7

Emitter(El)

8

Gate

1

(Gi)

or

Base

1

(Bi)

9

IGBTIMOSFET

Tester

10

Test

Button

11

Test

Light

(LED)

Hook

up

tester.

ON

=

Shorted;

replace

part

Press

button.

OFF

=

Fails

test;

replace

part

ON

=

Passes

test

9

10

11

E/S

DLII

a

Static

Hazard.

Put

on

grounded

wrist

strap.

DI

8/2

TEL

S-0717

/

S-0664

0-

81.8

TEl.

Wiring

Diagram

8W

23

IT

0 0

0

2

/

81/

84

SA-156

15-A

Circuit

Diagram

SA.156

116

Dia.

Part

Mkgs.

No.

Description

Quantity

Complete

Assembly

LIGHT,

md

red

lens

2V

LED

1

SWITCH,

PB

MC

NO

SPST

1A

115VAC

1

RESISTOR,

C

.25W

330

ohm

I

RESISTOR,

MF

.25W

267K

ohm

1

RESISTOR,

CF

.25W

2.7

meg

ohm

RESISTOR,

WW

fxd

zero

ohm

STRIP,

terminal

3P

solder

CASE

SECTION,

top/sides

CASE

SECTION,

bottom/ends

HOLDER,

battery

9V

BUSHING,

strain

relief

.120/.150

ID

x

.500mtg

hole

CABLE,

port

No.

18

3/c

(order

by

if)

TEST

CLIP,

minigrabber

red

TEST

CLIP,

minigrabber

black

TEST

CLIP,

minigrabber

yellow

1

154097..

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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