Safety Module for SSI Absolute Value Encoder

The new S-DIAS SSI 021 Safety module from SIGMATEK can analyze two SSI absolute value encoders. The 2-channel configuration ensures the safe collection and processing of position values in the SSI interface in accordance with SIL 3 or SIL CL 3 according to EN 62061 and PL e, Cat. 4 according to EN ISO 13849. Connecting 2 SSI encoders to a common signal enables, among other things, multiple sensors (such as distance measuring systems) to be read at the same time.

This is especially an advantage for applications with synchronization functions. The signal frequency can be set using software, so that the data transfer can be simply adapted to the cable lengths. The number of data bits can also be configured through the software to provide flexibility in regard to the resolution. With the SSI 021 Safety module, Safety functions for drift, speed, direction and ramping for example, can be implemented.

With the LASAL SAFETY Designer, the user is provided with a comfortable tool for programming and configuration. Logic connections and I/O configurations can be easily created. Predefined, certified standard function blocks (logic blocks, timers, counters, etc) and function blocks based on the PLCopen standard simplify Safety programming and maintenance.

 

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