Elevator Forum John Van Hengel @john-van-hengel Forum Home | Recent Posts New Member Joined: Jan 1, 2010 Follow Profile Activity Topics: 1 / Replies: 1 AllTopicsReplies Reply I suppose I should expand my information.This is a simple screw drive wheelchair type lift. It is not very intelligent.There are only 3 sense leads on... 4 years ago Forum Technical Questions Topic Wheel-O-vator Altivar 31 programming 4 years ago Forum Technical Questions Replies: 4 Views: 2174