Step 5: configure the new pulse transformer board – Rockwell Automation 20P PowerFlex DC Drive - Frame A Pulse Transformer Circuit Board User Manual
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PowerFlex® DC Drive - Frame A Pulse Transformer Circuit Board
13
Step 5: Configure the New 
Pulse Transformer Board
The Pulse Transformer circuit board must be configured to match the drive 
size (armature output current and HP rating). The steps required to complete 
the configuration are different based on the revision code of the board. See 
either, 
Pulse Transformer Board FIR1-XX Rev. “P” and Lower
below, or
Pulse Transformer Board FIR1-XX Rev. “Q” and Higher on page 17
Pulse Transformer Board FIR1-XX Rev. “P” and Lower
Important: This step requires a multimeter that measures resistance to
thousandths of an ohm.
1. Cut and remove the appropriate sizing resistor(s) (if necessary) from the
Pulse Transformer board based on the drive size. Refer to
appropriate configuration.
=
Sizing resistors are located on the lower right 
corner of the Pulse Transformer circuit board.