Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 54)

54 Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013
Chapter 1 Detail Drive Configuration and Operation
Faults Faults occur due to conditions within and/or outside the drive that could affect
drive operation or application operation. These events or conditions are
considered to be of significant magnitude that drive operation should or must be
discontinued. Faults are brought to the user’s attention via the HIM,
communication and/or contact outputs. Faults are selected during
commissioning of the drive. Example of faults include: Encoder loss,
communication loss or other exceptions within the drive.
Configuration:
Parameters 365 [Fdbk LsCnfg Pri] through 394 [VoltFdbkLossCnfg] and
parameters 940 [+Sft OvrTrvlCnfg] through 944 [Positin Err Cnfg] program
the response of the drive to various conditions. Responses include Ignore, Alarm,
Fault Coast Stop, Fault Ramp Stop, and Fault Current Limit Stop.
Parameters 323 [Fault Status 1] through 325 [Fault Status 3] indicated any faults
that are active.
Application Example:
Parameter 371 [Mtr OL Trip Cnfg] is set to a value of 2 “FltCoastStop”. This
configures the drive to set the fault bit, parameter 323 [Fault Status 1] bit 10
“Mtr OL Trip” when the motor overload trip event occurs.
Filters The PowerFlex 700S has various filters used to assist tuning of the drive. The
following section will assist the user in using the filter using frequency and time
domain analysis.
Key Words
Frequency response, radians, filter, notch.
Nomenclature:
Symbol Description of Symbol Units
s Laplace Operator
ω
Frequency rad/sec
ω
co
Cut-off Frequency rad/sec