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Rockwell Automation Publication 750-UM006C-EN-P - March 2022
Chapter 4
Configure and Start Up the Drive
These do not need to be set if all control actions are coming from the
Logix controller. The Logix controller command control word contains
start/stop, run/jog, forward/reverse, and so on. These inputs can be
used if one of the four I/O points (P0 and P1) on the drive are wired and
a desired function must be configured. See the On-Machine electrical
schematics.
16. On the other Digital Inputs step, you can choose to assign additional
digital input functions.
This example shows that the Dynamic brake thermostat is wired to the
drive Digital Input 0 on the PowerFlex 755. If desired, assign this input
to Enable or Aux. Fault input, as shown, to cause the drive to shut down
if this thermostat opens.
If you are assigning this input, it must have a connection that is made
with the DBRT receptacle. If you are not assigning this input, you can
choose to read its status (via the Logix controller via Datalink out) and
then determine what action is taken when it opens. For example: shut
down, complete machine index, then shut down, or otherwise. See On-
Machine electrical schematics for more information.
IMPORTANT
If the signal is open, the drive behavior must be configured for your desired
response. Examples of a response include: create an alarm, ignore the
action, send a fault code, use a controlled stop, E-stop, and others.
