ESAB IGBT Module Field Replacement Kit Troubleshooting instruction

Brand: ESAB

Model: IGBT Module Field Replacement Kit

Type: Troubleshooting instruction

F-15-719

May, 2002

1. PURPOSE

To insure the proper and consistent installation of

IGBT modules when it is necessary to replace an

IGBT module.

2. SCOPE

This document is applicable to the replacement for

all IGBT modules that use thermal pads or heat sink

compound between the module and the heat sink.

3. REQUIRED ITEMS

Allen Wrenches: M4, M6 , M8

Screw Driver: PHILLIPS #2

4. REMOVAL OF IGBT MODULE

A. Insure that input power is removed from the

power source by two actions such as a dis-

connect switch and the removal of fuses.

B. Remove covers to gain access to the IGBT

modules.

C. Remove the emitter and collector leads from

the IGBT and mark them for later replace-

ment.

D. Remove the gate screws or driver board as-

sembly. ESD reduction procedures should

be followed during this step.

IGBT MODULE

FIELD REPLACEMENT KIT

0558003076 MATCHED PAIR

0558003077 MATCHED TRIPLE

INSTRUCTIONS for

Be sure this information reaches the operator.

You can get extra copies through your supplier.

E. Remove the mounting screws that attach the

IGBT module to the heat sink. Note the

proper orientation of the module for later re-

placement.

F. Clean the mounting area of the heat sink. It

must be free from residual thermal pad ma-

terial or heat sink compound and must be free

from scratches and surface distortions.

5. IGBT INSTALLATION

A. Apply an even coating of heat sink compound

to the replacement IGBT module and heat

sink. Place the properly oriented IGBT onto

the heat sink. Mount the IGBT with its mount-

ing hardware. Torque the mounting screws

down evenly to the specifications in Table 1.

B. Install the gate screws or IGBT driver board.

Use ESD reduction techniques for this step.

C. Install the emitter and collector leads.

D. Insure that all connections have been prop-

erly tightened.

E. Replace all covers.

TABLE 1 – MOUNTING SCREW TORQUES

SCREW SIZE DESCRIPTION TORQUE

M4 GATE TERMINAL 13 in-lb

M6 MOUNTING SCREW 26 in-lb

M8 EMITTER-COLLECTOR 95 in-lb

ESAB IGBT Module Field Replacement Kit Troubleshooting instruction

ESAB IGBT Module Field Replacement Kit Troubleshooting instruction

ESAB IGBT Module Field Replacement Kit Troubleshooting instruction

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