Inverter power module (igbt) – Rockwell Automation 20B PowerFlex 700 Drive - Frame 7 Components Replacement User Manual
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Rockwell Automation Publication 20B-IN017B-EN-P - September 2011
Chapter 3 Component Replacement Procedures
Inverter Power Module
(IGBT)
Important: Kit includes two (2) IGBT modules and two (2) Gate Interface
Boards. It is recommended that both IGBT modules for a phase be
replaced at the same time.
Refer to the figures in
Component Diagrams and Torque Specs on page 13
these instructions.
Remove Components
1. Read and follow the
and
.
2. Locate the Inverter Power Module to be replaced.
Remove Transitional Bus Bar on page 23
.
for the Inverter Snubber
Board over the IGBT modules to be replaced, but do not discard the
Inverter Snubber Board.
5. Remove the two Inverter Snubber brackets (two screws each) for each
board. Set aside.
6. Disconnect the positive and negative IGBT bus bars (four T40 screws
each).
7. Using a pencil, mark the sides of the IGBT Bus Bar to note location for
later installation.
Exact positioning is critical for alignment of other components,
especially the Transitional Bus Bar unit.
8. Remove the IGBT Bus Bar from the modules. Set aside.
9. Disconnect connections for the Gate Interface Boards.
Inverter Snubber Brackets