Disclaimer: This article is for informational purposes only and does not constitute legal or engineering advice. Always consult the official, current version of the standard for design and compliance purposes.
EN 60204-1 is the harmonized European standard titled "Safety of machinery – Electrical equipment of machines – Part 1: General requirements." en 60204-1 pdf
Either buy the official copy or use a read-only service. The €300 you spend on the standard is cheap insurance compared to the cost of a machine recall or an accident investigation. Disclaimer: This article is for informational purposes only
Having the on your hard drive is useless unless you apply it. Here is a practical workflow: en 60204-1 pdf