The UE 440 is a configurable safety controller for comprehensive implementation of safety applications, such as safeguarding multiple robot cells at the same time. The UE 470 is specifically designed for the safety requirements of press brake applications. The controllers offer 15 single- channel inputs, including seven that can be configured as two-channel inputs. Eight outputs, of which two are safety output pairs, allow individual control of downstream plant components. The UE 440/470 are rated Category 4, according to EN 954-1, and SIL 3, according to IEC 61508. The emergency stop function is rated stop Category 0 or 1, in accordance with EN 418.