Reply To: Best way to apply a remote force and displacement to reduce DOFs

[mohan.urs]

Hey,

So the direct displacement should work for you. 
And regarding the warning you can check the weak spring forces that are being generated. If they are low it won't be a problem.
To check what is causing that error you can check out this course https://innovationspace.ansys.com/courses/courses/prevent-rigid-body-motion-in-contact/

Regards,
Mohan Urs