Wiring examples
Leuze electronic
MSI 100/200
51
6.2.3
External supply (OSSD)
Figure 6-3
Single-channel assignment of the inputs: external supply (OSSD)
Key dates
Example configuration
Legend:
OSSD
OSSD sensor
I0
Input
+24 V
Supplied by external 24 V
0 V
External 0 V (note potential refer
-
ence)
WARNING: Loss of the safety function
Parasitic voltages can lead to the loss of the safety function.
•
Exclude the possibility of parasitic voltages through appropriate wiring.
OSSD
+24 V
I0
0 V
Sensor
Single-channel OSSD output (with internal testing)
Sensor supply
External (OSSD sensor)
Attainable safety integrity
SIL 1/SILCL 1/Cat. 1/PL c
WARNING: Loss of the safety function
Cross circuits can lead to the loss of the safety function.
•
Exclude the possibility of cross circuits in order to be able to achieve the specified safety
integrity.
Configuration
Configured as
Input xx channel 1/channel 2
Cross circuit monitoring
No
