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

Connecting
5.2 Wiring plan
Cable screening and grounding
It is recommended to connect the cable screening to ground potential on the supply
side.
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
Wire colour
Black
White
Internal check of the electronics
Output signal is set to failure
Function
Voltage supply, signal output
Voltage supply, signal output
Shielding
Polarity
Plus (+)
Minus (-)
SITRANS LR120, HART
Operating Instructions, 10/2023, A5E49829026