October 26, 2023 at 9:40 am
Surya
Ansys Employee

Hi, 

Convergence depends from problem to problem, but for majority of the nonlinear problems, force convergence serves as a first step, a displacement convergence acts as an additional verification step. All other convergence checks will also be done with their default settings. Please find this KM - 
1) What is displacement convergence? 2) In some cases force or displacement convergence alone is sufficient while in some other cases both are activated. What is the reason for this? - Ansys Knowledge

Also find this CNVTOL help documentation for more information - 
CNVTOL (ansys.com)

Thanks,
Surya