Connecting
5.2Wiring 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
Figure5.1 Wire assignment in permanently connected connection cable
Wire colour Function Polarity
1 Black Voltage supply, signal output Plus (+)
2 White Voltage supply, signal output Minus (-)
3 Shielding
5.3 Switch-on phase
After connection to the power supply, the device carries out a self-test:
• Internal check of the electronics
• Output signal is set to failure
The current measured value is then output on the signal cable.
20
SITRANS LR120
Operating Instructions, 08/2020, A5E49829026