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Installation manual
HB-37420-810-01-25F-EN SMX100 Installation manual.docx
Page 87 of 260
Version: 25F
4.2.1.5
Overview of achievable PI for digital safety inputs
Type of sensor /
input element
Input
Parameterized /
operational tests
Achievable PI
acc. to
EN ISO 13849-1
Fault exclusion for input
element
Condition for input element
C
ro
ss
-sh
o
rt
in
g
te
s
t
W
it
h
t
im
e
-o
u
t
S
ta
rt
t
e
s
t
C
ycl
ic
te
st
d
u
ri
n
g
o
p
e
ra
ti
o
n
Single-channel
I01 ... I14
b
Operation proven input element
O
O
d
All faults at the input element
Short-circuit at input/signal line
MTTF
D
= high
Connection in control cabinet or
protected routing
I01 ... I04
I09 ... I14
e
All faults at the input element
Short-circuit at input/signal line
Input element does not comply with
min. PIr
Connection in control cabinet or
protected routing
All
X
d
Getting caught
Short-circuit at input/signal line
Mainly High level required (THigh >
100 * TLow). Positively disconnecting
MTTFD = high
Connection in control cabinet or
protected routing
X
O
O
e
All faults at the input element
Short-circuit at input/signal line
Input element does not comply with
min. PIr
Connection in control cabinet or
protected routing
MTTF
D
= high
Dual-channel parallel
All
d
Short-circuit between input/signal line
Connection in control cabinet or
protected routing
MTTF
D
= medium
X
e
MTTF
D
= high