Rockwell Automation 20P PowerFlex DC Drive - Frame C Pulse Transformer Circuit Board - Manual (Page 6)

6 Rockwell Automation Publication 20P-IN010C-EN-P - February 2012
PowerFlex DC Drive Frame C Pulse Transformer Circuit Board
4. Remove the four screws (two on either side of the drive frame) that secure
the slotted air flow plate to the top of the drive and remove the plate.
Figure 1 - Pulse Transformer Circuit Board Layout
Remove four screws
Air flow plate
Screws shown
removed