Allen-Bradley PowerFlex 527, User Manual

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130 Rockwell Automation Publication 520-UM002B-EN-E - December 2017
Chapter 7 Troubleshooting
PowerFlex 527 Drive Exception Behavior
For PowerFlex 527 drives, you can configure exception behavior in the
Logix Designer application from the Axis Properties dialog box, Actions
category.
Only selected drive exceptions are configurable. In the fault behavior tables, the
controlling attribute is given for programmable fault actions.
PowerFlex 527 Drive Exception Action Definitions
Exception Action Definition
Ignore The controller completely ignores the exception condition. For some exceptions that are
fundamental to the operation of the planner, Ignore is not an available option.
Alarm The controller sets the associated bit in the Motion Alarm Status word, but does not
otherwise affect axis behavior. Like Ignore, if the exception is so fundamental to the
drive, Alarm is not an available option. When an exception action is set to Alarm, the
Alarm goes away by itself when the exceptional condition has cleared.
Fault Status Only – Minor Fault Like Alarm, Fault Status Only instructs the controller to set the associated bit in the
Motion Fault Status word, but does not otherwise affect axis behavior. However, unlike
Alarm an explicit Fault Reset is required to clear the fault once the exceptional condition
has cleared.
Like Ignore and Alarm, if the exception is so fundamental to the drive, Fault Status Only
is not an available option.
Stop Planner – Minor Fault The controller sets the associated bit in the Motion Fault Status word and instructs the
Motion Planner to perform a controlled stop of all planned motion at the configured
maximum deceleration rate and holds at zero speed. An explicit Fault Reset is required
to clear the fault once the exceptional condition has cleared. If the exception is so
fundamental to the drive, Stop Planner is not an available option.
Stop Drive – Major Fault When the exception occurs, the associated bit in the Fault Status word is set and the
axis comes to a stop by using the stopping action defined by the drive for the particular
exception that occurred. There is no controller based configuration to specify what the
stopping action is, the stopping action is device dependent.
Shutdown – Major Fault When the exception occurs, the drive brings the motor to a stop by using the stopping
action defined by the drive (as in Stop Drive) and the power module is disabled. An
explicit Shutdown Reset is required to restore the drive to operation.