Siemens SINAMICS V90 Operating Instructions Manual page 203

The risk assessment involves the following:
● Risk analysis
– Determines the limits of the machine (EN ISO 12100-1)
– Identification of the hazards (EN ISO 12100-114)
– Estimating the level of risk (EN 1050 Paragraph 7)
● Risk evaluation
As part of the iterative process to achieve the required level of safety, a risk assessment is
carried out after the risk estimation. A decision must be made here as to whether the
residual risk needs to be reduced. If the risk is to be further reduced, suitable protective
measures must be selected and applied. The risk assessment must then be repeated.
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 according to EN ISO 13849-1. For electrical and electronic controllers, EN 62061
can be used as an alternative to EN ISO 13849-1. Electronic controllers and bus systems
must also comply with IEC/EN 61508.
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2017, A5E37208830-003
Safety integrated function
9.1 Standards and regulations
203