3 System description of safe I/O modules
| Transition diagramm
10
1484600000/04/06.2017
u-remote IP20 modules for functional safety manual
3.2 Transition diagramm
State 2
Running
Failu
re resolv
ed
Failur
e occur
ed
Acknowledgement
by safety control
Parameter received from safety control
Unrecoverable fault
State 1
Waiting for parameter
State 4
Requesting
acknowledgement
by safety control
State 3
Fault
Transition diagramm for safe I/O modules
3.3 Current-/voltage characteristics of the fail
safe digital inputs
0
0
2
20
10
4
6
8
12
14
16
18
3
2
1
4
[V]
[mA]
Inputs "off"
Inputs "on"
Current-/voltage characteristic for P-switching inputs
0
0
2
20
10
4
6
8
12
14
16
18
3
2
1
4
[V]
[mA]
Inputs "off"
Inputs "on"
Current-/voltage characteristic for PN-switching inputs
Summary of Contents for UR20-4DI-4DO-PN-FSOE
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