Patent ID: 6230871
Filing Date: 2001-05-15
Classification: B66B

Abstract:
Device for monitoring functional units at escalators and moving pavements consisting of several processors being independent from each other and controlling presetable parameters of the respective functional unit, characterized in that the processors (2, 3, 3', 3"") are independently from each other provided for simultaneously monitoring the driving motor (1) of the stairs respectively the pallets and/or the driving motor (24, 25, 35) of the hand-rail drive respectively drives and in particular the speed(s) of the driving motor respectively motors (1, 24, 25, 35), the processors (2, 3, 3', 3"") being connected to safety contacts (15, 16, 30, 31) for immediately stopping the escalator respectively the moving pavement, and that the processors (2, 3, 3', 3"") are in active relation with at least one other processor (4), which is provided for the control and/or diagnosis of functional units not being relevant for safety.