Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 368)

368 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 6 Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives
• Motor with Load: Choose this selection to calculate tuning values based
on the load inertia. If selected, the load inertia is measured and then
applied to the Total Inertia attribute or Total Mass attribute. The Load
Ratio is also updated.
• Uncoupled Motor: Choose this selection to calculate tuning values based
on the motor inertia. If selected, the motor inertia is measured during the
test and is stored in the Rotary Motor Inertia attribute.
• Travel Limit: Enter a value that specifies the maximum distance to travel
for the selected tune operation when the system has a limited travel
distance. If the tuning test cannot complete within the distance specified
the tune fails and faults the axis.
• Speed: Enter a value that specifies the speed of the tune operation. A
speed that translates to a minimum of 25% of the motor nameplate RPM is
recommended.
• Torque: Enter a value in the range of 0…300 that specifies the torque value
to be applied to the tune operation. The default value is 100.
• Direction: Choose the direction of the move for the tune operation. The
available values include:
• Forward Unidirectional (default)
• Reverse Unidirectional
• Forward Bi-Directional
• Reverse Bi-Directional
Run the Autotune
To start the autotune procedure, click Start:
• When the Measure Inertia using Tune Profile check box is selected, the
request to start a tune is issued to the controller.
• Any pending edits in this dialog box need to be applied before you start the
test. If you have pending edits, a message box appears informing you that
pending edits are applied prior to executing the test. Click Yes to apply the
pending edits. If you choose No, the test is not be executed.
• Clicking Start issues a Motion Direct command to the controller, which
causes any parameters used by the motion direct command to validate
before starting the test.
• If the Motion Direct command does not execute due to an error condition,
an error message appears and the Test State returns to the Ready state.
• Click Stop to terminate an autotune operation that was started from a
source other than Start on this Autotune dialog box. When an Autotune is
started from Start on this dialog box, Stop is unavailable.
When the autotune has completed, click Accept Tuned Values to accept the
tuning results and before you can change any tuning categories.