8LSA55.EB030D200-1 B&R Automation Servo Motor

8LSA55.EB030D200-1 B&R Automation Servo Motor

8LSA55.EB030D200-1 B&R Automation Servo Motor

Safety-related position measurement systems

In machine and system manufacturing, the topic of safety is becoming more and more important. This is mirrored in legislation and stricter safety criteria in national and international standards. Most importantly, stricter requirements serve to protect personnel, but they also increasingly serve to protect property and the environment. The goal of functional safety is to minimize or eliminate dangerous situations that can occur in machines and systems either with or without operational errors. This is generally achieved by implementing redundant systems. Moving axes in safety-oriented applications require position information in order to be able to carry out their corresponding safety functions. Different system configurations can be implemented to get independent position values. One possibility is using two measuring instruments per axis. To keep costs down, the aim is often to create a solution with only one position measuring instrument. Until now, analog measuring instruments with sine/cosine signals were used for this purpose.

The encoder manufacturer Heidenhain – as the first manufacturer with the purely serial EnDat 2.2 protocol for safety position measurement systems – offers a serial single-encoder solution in accordance with IEC 61 508 SIL2. All the advantages of serial data transfer – such as cost optimization, diagnostics possibilities, automatic commissioning and high-speed generation of position values – can now benefit safety applications as well. 100% inspection during production and additional measures during final testing ensure errors have not occurred related to shaft and coupling connections on rotary encoders when using motors with S encoders (in accordance with EN ISO 13849-2). There are also a number of safety functions that are already possible with D encoders. Information regarding the area of application and the procedure for setting up various safety functions can be found in the “ACOPOSmulti SafeMOTION” user’s manual. (Model number: MAACPMSAFEMC-GER ACOPOSmulti SafeMOTION or in the Downloads section of our website).