Example Applications; Example Applications For Safe I/O Modules - Weidmuller UR20-4DI-4DO-PN-FSOE Manual

7

Example applications

In section 7.1 you will find example applications for safe I/O
modules, the sections 7.2 to 7.12 show example applica-
tions of safe power-feed modules.
All examples shown are proposals without war-
ranty. In any case the operator has to perform a
safety review of the entire site.
7.1

Example applications for safe I/O modules

OSSD1
0 V
AOPD
+24 V
OSSD2
Example application with active optoelectronic protective device (AOPD)
L+(+24 V)
Safety relay
Sensor
M(0 V)
Example application cross-circuiting detection without test pulses
1484600000/04/06.2017
UR20- * -FS *
Input
DI: P-switching, without test pulses
1
2
3
DI: without test pulses
4
100 mA
1)
1)
1)
1)
u-remote IP20 modules for functional safety manual
7 Example applications | Example applications for safe I/O modules
UR20- * -FS *
Input
DI: N-switching, without test pulses
1
2
3
4 DI: N-switching, without test pulses
1)
max. 40 Ω
73