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Rockwell Automation Publication 20P-TG001C-EN-P - February 2018
Chapter 3
Part Replacement Procedures
Install the Pulse Transformer and Switching Power Supply Circuit
Boards
The pulse transformer circuit board must be configured to match the drive size
(armature output current and Hp rating). The steps that are required to
complete the configuration are different based on the revision code of the
board. See either, Configuring the Pulse Transformer Board FIR1-xx Rev. “P”
and Lower, or Configure a Pulse Transformer Board FIR1-xx Rev. “Q” and
Higher on page
Configuring the Pulse Transformer Board FIR1-xx Rev. “P” and Lower
1. Based on the drive size, cut and remove one or more appropriate sizing
resistors (if necessary) from the pulse transformer board. See
in the Sizing Resistor Configuration section on page
for the
appropriate configuration.
IMPORTANT
This procedure requires a multimeter that measures resistance to
thousandths of an ohm.
Sizing resistors are on the lower right corner of
the pulse transformer circuit board.