Rockwell Automation 20P PowerFlex DC Drive - Frame B SCR Modules - Manual (Page 5)

PowerFlex® DC Drive - Frame B SCR Modules 5
Step 4: Remove the Pulse
Transformer and Switching
Power Supply Boards Note: The Switching Power Supply circuit board is located on the back of
the Pulse Transformer circuit board. You do NOT need to remove the
Switching Power Supply board from the back of the Pulse Transformer
board.
1. Remove the plug-in terminal from the field input block at the top of the
drive.
2. Remove the four screws that secure the slotted air flow plate to the top
of the drive chassis.
Important: The air flow plate is also secured to the Pulse Transformer
circuit board and therefore cannot yet be removed.
Instructions for doing so are included later in this
procedure.
Air flow plate
Remove screws
Remove
plug-in
terminal
Front of Drive