The Harmony XPS Universal safety relays are ideal for use in a variety of safety applications thanks to their selectable safety function and start option using rotary switches on the front. This reduces the number of variants of the devices required and the diagnostic function allows states to be easily transferred to a PLC, so that in the event of a fault, downtimes are reduced by clear error information. The required function can be easily set from 10 selectable safety functions. Mechanical contacts from emergency stop/stop buttons, position or magnetic switches, safety mats as well as electronic PNP/NPN sensors, light curtains or RFID safety switches with OSSD outputs can be connected to the inputs. A safety function can be operated via the two inputs in a two-channel (redundant) version. Automatic, manual or monitored start as well as an optional start-up test are available for the start function. This safety switching device has 3 safe, undelayed relay contacts as output and optionally 3 safe, delayed contacts, 1 break contact and 1 semiconductor signal output, as well as 1 diagnostic message. The switch-off delayed time functions (e.g. stop category 1 or 2, SS1 or SS2) can be set in steps from 0.1 second to 15 minutes. With the help of the qualified diagnosis, states and errors are detected and transmitted to a standard input of a PLC using a telegram via direct wiring. A ready-made function block for common control systems evaluates these messages so that the operator is comprehensively informed on the machine display. The supply voltage is 24 VAC/DC and the connections are made via removable screw terminals. Applications up to safety level PL e in category 4 or SIL3 can be realized. If the number of outputs needs to be increased, the XPSUEP extension can simply be connected to the side via an integrated connector, saving time by eliminating cross-wiring. Installation is done by snapping it onto a top hat rail or screwing it onto mounting plates. A uniquely numbered locking strap is included to protect the settings under the transparent cover. A wide range of approvals enable international use. Thanks to the Green Premium eco-label, you can obtain detailed information on material content, environmental impact and circular economy that supports your sustainability goals.