Elevator Forum ForumsWhat’s NewRecent PostsMembers Forums General Discussion Technical Questions HPV900 Series 2 w/S... Notifications Clear all HPV900 Series 2 w/Smartrise Technical Questions Last Post by Anonymous 7 days ago 1 Posts 1 Users 0 Reactions 583 Views RSS wltr00 (@wltr00) Joined: 1 second ago Posts: 0 Topic starter 12/09/2023 8:18 am [#35910] Having an issue I’ve never seen where drive keeps changing back to default on A parameter settings and keeps giving me a volts/hertz fault on the drive.Any ideas? Quote Share: