SICK deTec4 Ex - System Connection (Flying Leads, 8-Wire)

Example: Isolated connection of OSSD1 and OSSD2
Figure 43: Dual-channel and isolated connection of OSSD1 and OSSD2
Avoiding any potential difference between load and protective device
•
If y
ou connect loads to the output signal switching devices (safety outputs) that
then also switch if controlled with negative voltage (e.g., electro-mechanical con‐
tactor without reverse polarity protection diode), you must connect the 0 V connec‐
tions of these loads and those of the corresponding protective device individually
and 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 connec‐
tions of the loads and those of the corresponding protective device.
Figure 44: No potential difference between load and protective device
Further topics
•
"Int
egration in electrical control", page 31
6.2 System connection (flying leads, 8-wire)
Table 8: System connection pin assignment for SP1 system plug (flying leads, 8-wire)
Pin Wire color
1)
s S
ender r Receiver
1 White Not assigned RES (reset pushbutton
in
put)
2 Brown +24 V DC (voltage supply
input)
+24 V DC (voltage supply
input)
3 Green Not assigned ADO (application diagnostic
out
put)
6 ELECTRICAL INSTALLATION
58
O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex 8022883/2019-03-07 | SICK
Subject to change without notice