What is a passive signal isolator? How is the passive signal isolator wired in the control system? Taihua Xiaobian today will take you to look at the passive signal isolator wiring. Signal isolator and transmitter wiring diagram.

Passive signal isolator wiring:

The passive signal isolator uses the signal current in the input loop to power the instrument (refers to taking part of the energy of the input signal inside the isolator to drive the isolator to work), without any external power supply. Signal isolator and transmitter wiring diagram.

The use of an active signal isolator (such as SWP9034) in a control system requires the isolator to be installed in the control cabinet of the control system and the power supply to support the isolator. If the use of passive isolators both play the role of signal isolation, and do not need to use the power supply that supports the work of the isolator, it can save one-third of the wiring workload, the cost of the power cable and the power supply itself. Signal isolator and transmitter wiring diagram.