With the investment in intelligent manufacturing and the development of intelligent products, robots are becoming more and more important in these years, and the appearance and application of robots have become a highly valued opportunity. Electromagnetic Compatibility (EMC) of robots are one of the essential product compliance issues. IEC and ISO’s standard committees are working on EMC requirements for robots. IEC subcommitte CISPR has published a guide in 2021 about this issue. Our below post is based on this guide.
The CISPR guide document is an updated version of CISPR/1412/INF which was originally prepared by CISPR/S AHG 3. It is intended to give some basic information about robots, some guidance as to which CISPR sub-committee covers which types of robots, and some proposals when carrying out EMC testing on robots. CISPR may update the guidance to keep pace with technology development and welcomes any suggestions and proposals for improvement.
Definitions
robot: actuated mechanism programmable in two or more axes with a degree of autonomy moving within its environment, to perform intended tasks
industrial robot: automatically controlled, reprogrammable, multipurpose manipulator, programmable in three of more axes, which can be either fixed in place or mobile for use in industrial automation applications
service robot: robot that performs useful tasks for humans or equipment excluding industrial automation applications
personal service robot: service robot for personal use, service robot used for a non-commercial task, usually by lay persons
professional service robot: service robot for professional use, service robot used for a commercial task, usually operated by a properly trained operator
Robot Classification Structure
Robots are classifed into two main category:
1) industrial robot
2) service robot
2.1) personal service robot
2.2) professional service robot
2.2.1) public service robot
2.2.2) special robot
General EMC aspects
1) Emissions
Both radiated and conducted emissions of robots and/or robotic devices may be maximized when there are dynamically operating parts such as arms and moving on the basis of the specified modes of operation associated with each function.
2) Immunity
All aspects of testing robots should be defined and documented by the manufacturer prior to testing according to a test plan. The test plan should contain requirements for immunity testing of robots and/or robotic devices including selection of applicable tests, disturbance levels to be applied during testing, configuration, performance criteria and other necessary details.
Various types of robots and applicable CISPR standards
As seen on above table, CISPR 11, CISPR 14-1, CISPR 14-2, IEC 61000-6-2, IEC 61000-6-4 are mentioned on the CISPR guide. And the CISPR committees are still working to define standards for each robot class since standardization follows technology.
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