Rockwell Automation Motion Analyzer Software User Manual
Page 232
232
Rockwell Automation Publication MOTION-UM004B-EN-P - October 2012
Chapter 3
Understanding Your System Solution
Table 134 - Simulation Input Parameters
Parameters
Description
Controller
(label 1 in
)
Coarse Update Rate
Coarse update rate of the Logix controller.
Sercos Update Rate
Sercos update rate of the Logix controller.
Counts Per Motor
Revolution
Drive feedback counts per motor revolution.
Counts Per User Unit
Drive feedback counts per user unit. The combination may be chosen arbitrarily to
make sure that the user units are exact. The user unit is the unit selected for Angular
Distance from Preferences->Units of Measure in the main Motion Analyzer window.
Drive
(label 2 in
)
Displays drive catalog number as selected in sizing. Parameters cannot be edited.
Continuous Current
Current that may be drawn indefinitely.
Peak Current
Maximum current that may be drawn briefly.
Motor
(label 3 in
)
Displays motor catalog number as selected in sizing. Parameters cannot be edited.
Motor Inertia
Motor rotor inertia.
Continuous Torque
Nominal or continuous torque (100%).
Peak Torque Limit
Peak available torque from the motor in %. Dynamic simulation assumes that this
peak torque is available at all speeds required by the specified profile. It does not
model bus voltage limit behavior.
Feedback
You can select the feedback device available to the base motor (for example, selected
in sizing). Selecting the feedback device changes the motor catalog number to reflect
the feedback device. This motor catalog number also reflects in the BOM area.
Feedback Counts/
Revolution
Feedback resolution in counts per motor revolution. This field is updated by selecting a
feedback device.
Load
(label 4 in
)
Select to use the load defined in the Motion Analyzer software. This is the default
selection when you open Dynamic Simulation.
Select SolidWorks software to model a more complex load and use SolidWorks
integration to perform simulation. Dynamic Simulation uses SolidWorks results to
predict the dynamic behavior of the load.
If SolidWorks is not installed on your personal computer, the SolidWorks Load option is
dimmed.
Test Disturbances
(label 5 in
)
Test disturbances test the stability of the system. The defined step torque value is added to the system for the
specified duration.
Step Torque
Simulates a step torque occurring part way through the cycle.
Step Start Time
Defines the point in the cycle that the step occurs.
Step Duration
Defines the length of time that the torque is applied.