Rockwell Automation 20P PowerFlex DC Drive - Frame B SCR Modules - Manual (Page 16)

16 PowerFlex® DC Drive - Frame B SCR Modules
11. Remove the bolts, washers and wires that secure the U, V and W phase
power terminals to the SCR Modules. Continue with Remove the SCR
Modules below.
Remove the SCR Modules
12. Remove the two screws and washers that secure each SCR Module to
the heatsink and remove the SCR Module.
Non-Regenerative Drive Remove bolts and washers
Remove two screws and washers
Regenerative Drive Non-Regenerative Drive
Remove screws and washers