Use As Optical Warning System With Test Function - Pfannenberg PMF 2015-SIL Instructions De Service

The monitoring of the function of the light is used in the proof test. The 'proof test' is described in section
4.10 of the operating instructions/safety manual.

4.4.2.2. Use as optical warning system with test function

This monitoring can only be used with systems in 'low demand mode'. The test function, as described in
section 4.7, is taken into account. This must be automated and must take place at least ten to one hundred
times more often than the expected requirement rate. The system with test function, including the diagnosis
and respective measures in the fault message, must be in accordance with the requirements of the function
safety according to IEC/EN61508.
In the following, a requirement rate less frequent than once a year is assumed (low demand).
Automatic
test interval
Proof test interval
PFD
mean
SFF
eq
DC
eq
Automatic
test interval
Proof test interval
PFD
mean
SFF
eq
DC
eq
MTTR
λ
Flashing light
D
λ
Flashing light
S
λ
Diagnosis switch
DU
λ
Diagnosis switch
S
β
λ
complete
DU
λ
complete
S
MTTF
d
HFT
Category (DIN EN ISO13849)
Architecture type
Suitability of the system for use in safety
chains until
PL (DIN EN ISO13849)
*
Next to the proof test interval, the lifetime of the flashtube is to be observed as specified in the technical data. The number of executed
flashes is pivotal for the lifetime. This is to be taken into account in the respective use.
** Because of the complex integration of the system in the checking processes of the operation, the system is classed as type B under
inclusion of the test releases and diagnosis in a superior control technology.
Datei/ file name:085501931f D-E-F.doc
monthly
(672h)
1*
24V DC 230V AC
-4 -4
2,51x10 1,84x10 8,45x10
95,9 96,6
91,4 91,4
monthly
(672h)
15*
24V DC 230V AC
-4 -4
6,59 x10 4,84x10 4,93 x10
99,3 99,4
98,5 98,5
weekly
(168h)
1*
24V DC 230V AC 24V DC
-5 -5
6,21x10 3,71x10
98,6 98,8
97,1 97,1
weekly
(168h)
15*
24V DC 230V AC 24V DC
-4 -4
3,62x10 4,45 x10
99,5 99,5
98,9 98,9
24V DC
1
661
598
43
82
10
666
718
>100
0
2
Type B**
SIL 2
d
23 / 44
daily
(24h)
1* a
230V AC
-5 -5
(1/requirement)
2,75x10
%
99,4 99,5
%
98,7 98,7
daily
(24h)
15* a
230V AC
-4 -4
(1/requirement)
3,27x10
%
99,5 99,6
%
99 99
230V AC
1 h
484 Fit
603 Fit
50 Fit
85 Fit
10 %
489 Fit
734 Fit
>100 years
0
2
Type B**
SIL2
d
Zeichnungsnr./ Drwg-no.: 11516-42e