Indicates a state that requires mandatory action by the operator. For example, a prompt to input a setting or perform a manual inspection cycle.
Using raised textures or symbols on the button surface so operators can identify them by touch alone. Why Engineers Need the Official IEC 60073 PDF
For actuators that are not internally illuminated, the standard specifies the following color assignments:
If you are just looking for the content of the standard, search for "IEC 60073 colour code table" in Google Images rather than the full PDF. That gives you the practical info instantly.
Bookmark the official IEC page, request a quote from ANSI, and invest in safety. The price of the standard is negligible compared to the cost of a single human error.
IEC 60073 is a critical standard for HMI design, providing guidelines for creating safe, efficient, and user-friendly interfaces. By understanding the principles and requirements of IEC 60073, organizations can improve human-machine interaction, reducing errors and improving overall performance. Whether you're an HMI designer, operator, or manager, IEC 60073 is an essential resource for ensuring effective and efficient HMI design.