Reply To: SYSTEM COUPLING, TWO WAY FSI, RESTART POINT

[Rahul]

Hello 
Time duration is controlled in System Coupling, but cannot be larger than the Step End Time set in Mechanical analysis settings.

Refer following tutorial to know more about restarting coupled simulation: Restarting a Coupled Analysis in ANSYS Fluent and Mechanical (19.0) (youtube.com)

Hope this helps!