28 Rockwell Automation Publication 750-RM100A-EN-P - August 2019
Chapter 4 Secondary Motor Control
Switching Between Motor Control Profiles
The active motor control profile is defined in 0:74 [Motor Ctrl Sel]. There are
two methods you can use to change between the primary and secondary motor
control profiles.
Logix Configuration
The motor control profile that is actively being used can be changed by writing to
0:74 [Motor Ctrl Sel] either through a datalink or with an explicit message
instruction. You can verify that the active motor control profile has changed as
expected by doing a readback from the PowerFlex 755T drive by using 0:75 [Mtr
Ctrl Sel Act].
Discrete-Wired Digital Input
You can wire a digital input to an I/O option module installed in the PowerFlex
755T drive. The digital input is configured to 0:169 [DI Mtr Ctrl Sel] to switch
between the primary and secondary motor control profiles. If the input is open or
de-energized, the drive selects the Primary Motor Control profile.
Interaction between Logix and Digital Input
If both methods to control the active motor control profile are being used, the
digital input that is configured in 0:169 [DI Mtr Ctrl Sel] takes priority.
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