Motors Delta/Star connections to VFD
These motors 400/690 are used for star/delta switch. When connected to star, they got 230V at each phase, when switched to delta they got nominal 400V voltage. They can also work nominally at 690V if star connected. This is a standard for such motors, mostly they use a star/delta swith or sequence by using three contractors and pneumatic delay device.
In your case, using a VFD, this motor should be connected in delta wiring. It won't make any difference for your application.
There is no advantage using such motor, this is just standard. You can get also 230/400V motor, but probably they will charge you extra money for swapping.