1
3
0
8
6
3
2
0
1
9
-0
4
24
VAA-2E2A-KE1-S/E2, VAA-2E2A-KE1P-S/E2
Appendix B
7
Appendix B
7.1
Summary of the Requirements for Categories in Accordance with
EN 954-1/ISO 13849-1
Category Summary of the requirement
System behavior
1)
Essential
principle to
achieve
safety
B
The safety-related parts of machine
control and/or their components must
be designed, constructed, selected,
assembled, and combined in
accordance with the applicable
standards such that they can
withstand the expected influences.
If a fault occurs, it can lead
to the loss of the safety
function.
Via the
selection of
components
1
The requirements of B must be
fulfilled.
Use of components and principles
that are proven for safety engineering
purposes.
As described for category B,
but with the safety function
providing a higher level of
safety-related reliability.
