Single-Channel Safety Application, Proof Test Interval 20 Years; Table 20: Safety Parameters For Single-Channel Safety Application - WAGO -I/O-SYSTEM 750 Manual

4fdi/4fdo 24v/2a profisafe v2 ipar, fail-safe 4/4 channel digital input/output, 24 vdc, 2 a, profisafe v2.0 ipar
Hide thumbs Also See for WAGO-I/O-SYSTEM 750:
Table of Contents

Advertisement

WAGO-I/O-SYSTEM 750
750-667/000-003 4FDI/4FDO 24V/2A PROFIsafe V2 iPar
4.6.7.4

Single-channel Safety Application, Proof Test Interval 20 Years

Table 20: Safety Parameters for Single-Channel Safety Application – 20 Years
Maximum safety integrity level
acc. EN 62061
Maximum safety integrity level
acc. IEC 61508
Maximum performance level
acc. EN ISO 13849-1
Proof test interval/usage duration
Probability of failure
*)
PFD
,
Proof test interval
20 years
(low demand mode)
(IEC 61508)
Probability of failure
*)
PFH
,
Proof test interval
20 years
(high demand mode)
(IEC 61508)
Hardware fault tolerance HFT with
single-channel application
(IEC 61508 / EN ISO 13849-1)
DC (diagnostic coverage level)
MTTF
d
(Mean Time To Failure dangerous)
*)
PFD: Probability of a dangerous failure on demand
PFH: Probability of a dangerous failure per hour
for 1 input
(input to fieldbus)
for 1 input and
1 single-channel
output (input to
fieldbus and fieldbus
to output)
for 4 inputs and
4 single-channel
outputs (inputs to
fieldbus and fieldbus
to outputs)
for 1 input
(input to fieldbus)
for 1 input and
1 single-channel
output (input to
fieldbus and fieldbus
to output)
for 4 inputs and
4 single-channel
outputs (inputs to
fieldbus and fieldbus
to outputs)
Version 1.4.2, valid from HW/SW Version 01/02
Device Description
SIL2
SIL2
Cat. 2/PL d
20 years
-4
1,63 × 10
(1,63 % of all PFD from
-2
10
at SIL2)
-4
2,51 × 10
(2,51 % of all PFD from
-2
10
at SIL2)
-4
5,08 × 10
(5,08 % of all PFD from
-2
10
at SIL2)
-9
1,86 × 10
(0,19 % of all PFH from
-6
10
at SIL2)
-9
2,86 × 10
(0,29 % of all PFH from
-6
10
at SIL2)
-9
5,80 × 10
(0,58 % of all PFD from
-2
10
at SIL2)
0 (1 error in the application can lead
to a failure of the safety equipment)
96 %
> 100 years
41
Manual

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

750-667/000-003

Table of Contents