Distance measurement Distance measurement Safety - PLd Distance Measurement - LPR®-SAFE is a system for safe distance measurement compliant with the functional safety standard EN ISO 13849 PLd. It is suitable for semi-automatic and automatic crane systems, rail-bound vehicles, and other applications. LPR®-SAFE consists of LPR®-1DHP-291 (60 GHz) or LPR®-1D24 (24 GHz) series radar distance measurement sensors which, together with a certified function block (EN ISO 13849 PLd) on a fail-safe Siemens PLC, enable precise, functionally safe distance measurement. Two redundant measuring sections with two sensors each, all of the same type, are set up for this purpose. Both measuring sections operate in redundant secondary radar mode and ensure that the measurement is only carried out between the correspondingly configured partner unit. Each of the two redundant measuring sections provides distance values, which are forwarded to the fail-safe PLC, where the measured distances are compared in the certified function block (EN ISO 13849 PLd). The measured values can be read and compared on one or both sides of the measuring section with its own PLC on each side. If the difference in the measured distances between the two sections is within the permissible tolerances, the measured values are marked as safe. If not, the measurement is marked as unsafe, and corresponding actions can be triggered on the (crane) system side. PRELIMINARY DATASHEET • Safe distance measurement by radio • Certified compliant with EN ISO 13849 PLd • Can be retrofitted to many existing Symeo measuring sections • Unaffected by dirt, weather, and vibrations • Ideal for semi-automatic and automatic crane systems • Easy installation

Depending on the sensor type used, different ranges and accuracies result. Measuring range Measurement rate 1) average value, depending on distance, environment, and configuration Further information and the data sheets for LPR®-1DHP-291 and LPR®-1D24 can be found on our homepage: www.symeo.com. LPR®-SAFE system structure for new installations Symeo provides all devices and software modules of the LPR®-SAFE system, and the new installation is as easy as usual. The sensors of the respective measuring section are configured via WebUI. The connection to the PLC (Siemens S7 with fail-safe CPU), on...