Manual
Table Of Contents
- Front Cover
- What This Kit Includes
- Tools That You Need
- What You Need to Do
- Step 1: Remove Power from the Drive
- Step 2: Remove the Protective Covers
- Step 3: Remove the Pulse Transformer and Switching Power Supply Boards
- Step 4: Remove the Field Circuit Board
- Step 5: Remove the Existing AC Line Snubber Board and Resistors
- Step 6: Install the New AC Line Snubber Board and Resistors
- Step 7: Install the Field Circuit Board
- Step 8: Install the Pulse Transformer and Switching Power Supply Boards
- Step 9: Replace the Protective Covers and Documenting the Change
- Related Documentation
- Publication 20P-IN015B-EN-P - December 2009

PowerFlex® DC Drive - Frame B AC Line Snubber Board and High Wattage Resistors 5
4. Disconnect the HIM Communication cable from the connector on the
upper right corner of the Control board and set the cover aside.
Step 3: 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.
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.
Pull tabs out
to disconnect
cable.
Air flow plate
Remove screws
Remove
plug-in
terminal
Front of Drive