If flying a RNAV-V approach there are no minimums. It is, by definition, a visual approach. As opposed to a RNAV (GPS) etc approach where we set a barometer minimum (per operator)
On our aircraft if a barometric min is set, the FD's will command approach NAV
until 50' below the barometric min or 400' RA, the FD's then revert to HDG/VERT SPD. I imagine the reversion is to remind the pilot he or she is now on a visual approach and to not blindly follow the FD's to TD.