Siemens SINAMICS S110 - Page 329

Safety Integrated Functions
8.1 Standards and regulations
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
327
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Figure 8-2 Iterative process to achieve the required level of safety to ISO 14121-1
Risks must be reduced by designing and implementing the machine accordingly (e.g. by
means of controllers or protective measures suitable for the safety-related functions).
If the protective measures involve the use of interlocking or control functions, these must be
designed in accordance with EN ISO 13849-1. For electrical and electronic controls, EN
62061 can be used as an alternative to EN ISO 13849-1. Electronic controls and bus
systems must also comply with IEC/EN 61508.