HB-37350-810-01-50F-EN PSC1-C-10 Installation manual V2.1.docx Page 43 of 189
Version: 50F
Characteristic data:
Max. achievable safety class
SIL 3 as per EN61508
Category 4 as per EN945-1
Performance Level e as per EN ISO 13849-
1
2-channel with diagnostics (1002) according to
EN 61508
Architecture category 4 according to EN ISO
13849
Design of the operating mode
"High demand" as per EN 61508
Probability of a dangerous failure per
hour (PFH value)
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
)
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