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Step 5: configure the new pulse transformer board – Rockwell Automation 20P PowerFlex DC Drive - Frame A Pulse Transformer Circuit Board User Manual

Page 13

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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

Table A

or

Table B

in the

Sizing Resistor Configuration

section on

page 14

for the

appropriate configuration.

=

Sizing resistors are located on the lower right
corner of the Pulse Transformer circuit board.