Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control - Manual (Page 334)

6-30 Component Definition and Maintenance
7000A-UM150F-EN-P –June 2013 7000 “A” Frame
6. Install the new heatsink and hand-tighten the bolts.
7. Replace the SGCT or SCR per the instructions on pages 6-22 to 6-27.
8. Follow procedure “Uniform Clamping Pressure” to ensure the
heatsinks are clamped to a uniform pressure.
PowerCage Gasket
To ensure all air movement is through the slots of the heatsinks, all
possible air leaks have been sealed with a rubber gasket. This gasket is
placed between the surface of the PowerCage and heatsink module. It is
necessary to have the gasket in place to ensure proper cooling of the
SGCTs or SCRs is maintained.
PowerCage housing
Resistors
Gasket
Power connection
Power connection
Figure 6.23 – PowerCage Gasket Location