Rockwell Automation 20P PowerFlex DC Drive - Frame A Switching Power Supply Circuit Board - Manual (Page 6)

6 PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board
3. Remove the five screws that secure the ground wire (in the lower left
corner) and Control EMI shield to the chassis and slide the Control EMI
shield and Control board up and out of the drive.
Important: Be careful when removing the EMI shield not to pull free
any of the gate leads or other cables on the Pulse
Transformer circuit board below the EMI shield.
Remove
screws
Remove
screw and
ground wire