Allen-Bradley 2094-AC05-MP5 User Manual page 262

Appendix F Enhanced Peak Performance
Default LoadInertiaRatio Value
262
4. Overwrite the existing TorqueLimitPositive and TorqueLimitNegative
values.
In this example, the calculated values are 178.1 and -178.1 (respectively).
The calculated value for Torque
following:
• TorqueLimitBipolar
• TorqueLimitPositive (+)
• TorqueLimitNegative (-)
If you want to limit the torque, adjust the calculated values to a value closer
to zero. The values shown are the default values for 150% peak torque with
this motor and drive pair.
5. Click the Output tab.
Default TorqueScaling Value
The TorqueScaling and LoadInertiaRatio values are populated after an
autotune. If an autotune is not possible, model the system in Motion
Analyzer software and enter that value for the LoadInertiaRatio. The
default value for the LoadInertiaRatio is 0.0, however for this example, a
ratio of 10.20:1 is used (load inertia = 0.015 Kg-m^2).
IMPORTANT
To calculate the maximum acceleration and deceleration from Torque
use this equation.
Rockwell Automation Publication 2094-UM001J-EN-P - March 2017
For more information on system configuration with your Logix5000
TIP
controller and the Logix Designer application, refer to
To obtain more accurate results, performing Autotune in the Logix
Designer application is recommended.
Accel Torque
=
max
If autotune cannot be performed, enter the data for the
TIP
LoadInertiaRatio, DriveResolution, and ConversionConstant as shown
in step 5 through step
is the maximum value for the
max
page
100
max
TorqueScaling
9.
135.
,
max