Hi Vladimir,

It depends on what types behavior you want to simulate with the cable in the model.  For example, if the spring rate of the cable is all that you care about, then you can use a spring element between the top pulley and the elevator car. Then the static and dynamic vertical position or motion of the car will include the flexibility of the cable.

If you want to include the mass of the cable and its lateral vibrations, then you could define beam elements.