Rockwell Automation 20P PowerFlex DC Drive - Frame B Pulse Transformer Circuit Board User Manual
Page 4
4
Rockwell Automation Publication 20P-IN009D-EN-P - February 2012
PowerFlex DC Drive Frame B Pulse Transformer Circuit Board
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. You must remove both boards in order to
replace 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.
Pull tabs out to
disconnect cable.
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 block
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