Rockwell Automation Allen-Bradley PowerFlex 20P, Hardware Service Manual

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62 Rockwell Automation Publication 20P-TG002B-EN-P - February 2018
Chapter 3 Part Replacement Procedures
Pulse Transformer Circuit
Board Fuse Replacement Remove the Fuses on the Pulse Transformer Circuit Board
Follow these steps to remove the fuses on the pulse transformer circuit board.
1. Read the General Safety Precautions on page 10 .
2. Remove power from the drive (see page 42 ).
3. Remove the protective covers from the drive (see page 43 ).
4. Move the control EMI shield (see page 58 ).
5. Using a fuse puller, carefully remove the three fuses from the fuse holders
on the pulse transformer board.
Install the Fuses on the Pulse Transformer Circuit Board
Install the fuses on the pulse transformer circuit board in reverse order of
removal.
Pulse Transformer and
Switching Power Supply
Circuit Boards Replacement Remove the Pulse Transformer and Switching Power Supply Circuit
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 either board. Follow these steps to remove the pulse transformer and
switching power supply circuit boards.
1. Read the General Safety Precautions on page 10 .
2. Remove power from the drive (see page 42 ).
3. Remove the protective covers from the drive (see page 43 ).
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