ESAB Powercut 650 Especificações descarregar pdf (Página 76)

6.3 Buss Supply Power Control / IGBT / MOSFET Testing

IGBT

G1 E1

E2 G2

BLACK LEAD

RED LEAD

YELLOW OR SMALL CLIP

1. CONNECT AS SHOWN

2. LED ON= SHORTED JUNCTION,

REPLACE PART

3. PRESS PUSHBUTTON SWITCH:

LED ON = GOOD

LED OFF = BAD OR OPEN,

REPLACE PART

** REPEAT STEPS FOR E2,C2 AND

NOTE: Black lead always on Emitter

Red lead always on Collector

Yellow on gate connections

G1 = GATE 1

G2 = GATE 2

E1 = EMITTER 1

E2 = EMITTER 2

C1 = COLLECTOR 1

C2 = COLLECTOR 2

IGBT TEST

1. Connect as shown

2. Led On = Shorted Junction, Replace Part

3. Press Push-button Switch:

Led On = Good

Led O = Bad Or Open, Replace Part

** Repeat steps for E2, C2 and G2

NOTE:

Black lead always on emitter

Red lead always on collector

Yellow on gate connections

G1 = GATE 1

G2 = GATE 2

E1 = EMITTER 1

E2 = EMITTER 2

C1 = COLLECTOR 1

C2 = COLLECTOR 2

IGBT Tester

SECTION 5.5 _ MOSFET TEST

YELLOW

RED

BLACK

MOSFET

1. CONNECT AS SHOWN :

LED ON = SHORTED JUNCTION, REPLACE PART

2. PRESS BUTTON :

LED ON = GOOD

LED OFF = OPEN OR BAD JUNCTION, REPLACE PART

G = GATE

D = DRAIN

S = SOURCE

1. Connect as shown

2. Led On = Shorted Junction, Replace Part

3. Press Push-button Switch:

Led On = Good

Led O = Bad Or Open, Replace Part

SECTION 6 REGULAR MAINTENANCE

CONTENTS

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ESAB Powercut 650 Especificações Página 76

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