Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 43 of 201
Version: 25F
Characteristic data:
Max. achievable safety class
• SIL 3 as per IEC 61508
• Category 4 as per EN945-1
• Performance Level e as per EN ISO
System structure 2-channel with diagnostics (1oo2) according to
IEC 61508
Architecture category 4 according to EN ISO
Design of the operating mode
"High demand" as per IEC 61508
Probability of a dangerous failure per
Specific values as per tables "Safety-related
characteristic data"
Proof test interval (EN61508) 20 years, after that the module must be
replaced
Safety instructions:
• You will find the specific safety-related characteristic data for the related modules in the
tech. characteristic data in section 3.
• On the usage of several sensors with different functions (e.g. access door position
indication + speed acquisition) for a safety function (e.g. safely limited speed with
access door open), these are to be considered as connected in series for the safety-
related assessment of the overall system. On this topic see example calculation in the
appendix.
• The safety regulations and EMC directives must be followed.
• In relation to the fault exclusions assumed, reference is made to the tables in D in the
annex of EN ISO 13849-2.
• For the safety-related assessment of overall systems, the characteristic data stated in
section 3 can be used for the PES sub-system (e.g. PL e and PFH value according to
table for verification as per EN ISO 13849)
The examples shown in the following and their characteristic architecture are definitive for the
allocation to a category according to EN ISO 13849-1.
The resulting maximum possible performance levels according to EN ISO 13849 are
also dependent on the following external component factors:
• Structure (single or redundant)
• Detection of common cause failures (CCF)
• Diagnostic coverage on demand (DC
avg
)
• Mean time to the dangerous failure of a channel (MTTF
D
)
To Next Page
Loading...
