Weidmuller UR20-4DI-4DO-PN-FSOE Manual page 13

Examples for operating with test pulses
1
DI X (PN)
2
AUX-O X
3
AUX-O Y
4
DI Y (P)
Connecting example type A sink
Input current 2.5 mA typ. (acc. to Type 3 as per EN 61131-2)
Output voltage:
AUX-O X, P-switching 22 V typ. (Supply voltage minus 2 V)
AUX-O X, N-switching 0 V
AUX-O Y Supply voltage 24 V typ.
Input capacity 10 nF typ.
1
DI X (PN)
2
AUX-O X
3
AUX-O Y
4
DI Y (P)
Connecting example type B sink
Test pulse delay Depending on the parameterisation
0.5 to 10 ms; depending on the parameterised input
Test pulse duration
delay
Test pulse intervall 1200 ms
Input capacity 10 nF typ.
Antivalent circuits are possible with V2 modules only.
1
DI X (PN)
2
AUX-O X
3
AUX-O Y
4
DI Y (P)
Connecting example with antivalent input circuit (V2 only)
1484600000/04/06.2017
3 System description of safe I/O modules | Operating with and without own test pulses
For the operation with test pulses the V2 modules can be
installed either with three or with four wires:
Operation with own test pulses, 4-wire installation
Operation with own test pulses, 3-wire installation
+24 V DC
Safety relay
Examples for operating without test pulses
The following parameter settings are needed if an external
device is connected that generates test pulses by its own:
V1 modules: test pulse "disabled"
V2 modules: test pulse "external".
Connecting example for operation without own test pulses, type C sink, class 1
Test pulse duration
Test pulse intervall
Input resistance
Input capacity
Input inductivity
u-remote IP20 modules for functional safety manual
1
DI X
2
AUX-O X
3
AUX-O Y
4
DI Y
1
DI X
2
AUX-O X
3
AUX-O Y
4
DI Y
1
DI X (PN)
GND
2
AUX-O X
+24 V DC
3
AUX-O Y
4
DI Y (P)
Max. 1 ms
Min. 0
Min. 7.2 kOhm (at 18 V)
Max. 10 nF typ.
Max. 1 mH
OSSD
Safety
device
13