Wiring Plan; Switch-On Phase - Siemens SITRANS L Series Operating Instructions Manual

Connecting
5.2 Wiring plan
Cable screening and grounding
If shielded cable is required, we recommend that the cable screening be connected
to ground potential on one side of the supply side.
In Ex systems, the grounding is carried out according to the installation regulations.
5.2

Wiring plan

Wire assignment, connection cable
Figure 5.1
1
2
3
5.3

Switch-on phase

After connection to the power supply, the device carries out a self-test:
•
•
The current measured value is then output on the signal cable.
20
Wire assignment in permanently connected connection cable
Black
White
Internal check of the electronics
Output signal is set to failure
Wire colour
Voltage supply, signal
output
Voltage supply, signal
output
Shielding
Function
+
-
Operating Instructions, 01/2020, A5E49829026
Polarity
SITRANS LR120