HINGED ELECTRONIC SAFETY SWITCH

摘要

An electronic hinged safety switch adapted for installation on protection barriers (B) of machines and/or automatic plants having one or more electric safety circuits (S). The switch comprises a substantially box-like fixed member (2) designed to be secured to a stationary part (M) of a protection barrier (B) and a movable member (3) designed to be secured to a pivotal part (P) of the protection barrier (B) and coupled to the fixed member (2) through hinge means (4). Sensing means (5) are housed in said box-like fixed member (2) for interacting with the hinge means (4) to send an electric control signal (SC) to one or more electric safety circuits (S) at a predetermined switching angle (α). The sensing means (5) comprise at least one sensor for generating a corresponding actuation signal (SA) at the switching angle (α), and an electronic control unit (8) operatively connected to at least one sensor (6). The electronic control unit (8) has at least one input (9) electrically connected to said sensor (6) for receiving the actuation signal (SA) and at least one output (10) connected to the electronic safety circuits (S) for generating the electric control signal (SC) in response to the actuation signal (SA).