Installation manual
Page 172 of 204
14 Notes on designing, programming, validating and testing safety
related applications
The following notes describe the procedure for designing, programming, validating and testing
safety related applications
The information should help the user to classify, to easily understand and to use all steps from
risk assessment all the way to the system test. For better understanding the respective
subjects, the individual steps are explained by means of examples.
14.1 Risk assessment
The manufacturer of a machine must generally guarantee the safety of any machine designed
or delivered by him. The assessment of safety must be based on the applicable and
appropriate regulations and standards. Objective of the safety assessment and the measures
derived from this must be the reduction of risks for persons down to an acceptable minimum.
The risk analysis must account for all operating conditions of the machine, such as operation,
setup work and maintenance or installation and decommissioning as well as predictable
erroneous operation.
The procedure required for the risk analysis and the measures for reducing such risks can be
found in the applicable standards
EN ISO 13849-1 Safety of machines
EN ISO 61508 Functional safety of safety related e/e/p e systems
.
Actual risk reduction
Necessity of minimum
risk reduction
Danger
Risk limit
Risk
Residual risk
Safety
Risk without safety
measures
Summary of Contents for PSCBR-C-10 Series
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