What you need to do – Rockwell Automation 20P PowerFlex DC Drive - Frame B Field Dual Diode Module User Manual
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PowerFlex® DC Drive - Frame B Field Dual Diode Module
What You Need to Do
The Field Dual Diode module is located below the Field board, which is 
below the Control board and Control EMI shield and the Pulse Transformer 
and Switching Power Supply boards in the upper left corner of the drive 
chassis.
To install the Field Dual Diode module:
❐ 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 board and existing Field Dual Diode
module
❐ Step 5: Install the Field board and new Field Dual Diode module
❐ Step 6: Install the Pulse Transformer and Switching Power Supply 
boards
❐ Step 7: Replace the protective covers and document the change
Field board and Field 
Dual Diode module
Back of Control EMI 
shield
Pulse Transformer board
Note: Drive shown 
with front covers 
removed and Control 
EMI shield lowered.