Possible Mechanism Lockup Conditions Encountered


The integrator was having trouble advancing during motion analysis for this model.


This could be due to a kinematic lockup condition or redundantly constrained model.


  • Try increasing the Output rate in the Run Motion Analysis Settings so you can better see what is happening right before the error occurs.
  • Enable the controller option for motors and actuators, if it is currently not being used.
  • Review joint definitions and introduce additional degrees of freedom by redefining connections, changing the joint type or state, or using spring forces to prevent the lockup or toggle conditions.
  • Change the profile function, time, or duration parameters for motors and actuators, so that the motion is applied more gradually (or more rapidly, depending on what is happening).
  • Try changing the Support behavior to Flexible (instead of Rigid) under the Advanced section of the Run Motion Analysis Settings.