Example: Isolated connection of OSSD1 and OSSD2
Figure 20: Dual-channel and isolated connection of OSSD1 and OSSD2
Avoiding any potential difference between load and protective device
If you connect loads to the output signal switching devices (switching outputs) that then
also switch if controlled with negative voltage (e.g., electro-mechanical contactor with‐
out reverse polarity protection diode), you must connect the 0 V connections of these
loads and those of the corresponding protective device separately and also directly to
the same 0 V terminal strip. In the event of a fault, this is the only way to ensure that
there can be no potential difference between the 0 V connections of the loads and
those of the corresponding protective device.
Figure 21: No potential difference between load and protective device
Further topics
•
"Integrating into the electrical control", page 19
6.2
System connection (M12, 5-pin)
1
2
3
4
5
Figure 22: System connection (male connector, M12, 5-pin)
ELECTRICAL INSTALLATION
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8020453/14Q7/2020-04-27 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTem4 Core
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Subject to change without notice
