dentical to the Altivar 12, the Altivar 312 interface features all the controls on the front panel. The notched wheel in the centre has several functions and can be used for programming, navigation or as a speed reference potentiometer for local control. The easy-to-use menu and graphic interface on the Altivar 71 allow operators to choose the required language (8 languages available as standard, 20 as an option) to make adjustment even easier.