Rockwell Automation 20P PowerFlex DC Drive Analog and Digital I/O Expansion Circuit Board - Manual (Page 4)

4 PowerFlex® DC Drive Analog and Digital I/O Expansion Circuit Board
3. Remove the top front cover from the drive:
a. For frame A drives, press in on the sides at the bottom edge of the
cover and at the same time pull the cover toward you to pull it
partially off the drive chassis. Next, at the top of the drive, pull the
cover forward, away from the drive, until the pins fit in the keyhole in
the top of the cover, then carefully lift the cover off of the drive
chassis.
Important: The HIM assembly is connected via a cable to the
Control board and therefore will not pull free from the
drive until disconnected. See
page 5 for instructions.
=
Frame A
When metal pin fits in keyhole,
lift cover off drive chassis.