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
2 PowerFlex® DC Drive - Frame B AC Line Snubber Board and High Wattage Resistors
What You Need to Do
The AC Line Snubber board and Resistors are located at the top of the drive
chassis behind the Control board and Control EMI Shield and Field and
Pulse Transformer circuit boards.
To install the AC Line Snubber circuit board and Resistors:
❐ 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 document the change
Field board
Pulse Transformer board
AC Line Snubber board
and Resistors behind
Field and Pulse
Transformer boards
Note: Drive shown with
front covers removed and
Control EMI shield
lowered.