Drives for robot joints provide unique challenges during the development.
Requirements and structure of these low voltage integrated servo drives are different to typical rack mounted systems not only due to their unusual environment.
Due to the tight integration into the complete robot arm, an individual analysis of the joint is not sufficient. Based on this example of a safety concept, some lessons learned on the application of IEC 61508 will be shown.
This talk will provide insight into some of these challenges based on the requirements and structures of different projects, also looking into the future due to the upcoming revision of the IEC 61508 ED3. We will also look into the cyber security requirements for such a device.