ABB AC500 PLC - Connection of Active-type Analog Sensors (Voltage) with no Electrically Isolated Power Supply to the Analog Inputs

Fig. 85: Connection of active-type analog sensors (current) with electrically isolated power
supply to the analog inputs
The following measuring ranges can be configured Ä Chapter 1.5.3.1.1.6 “Parameterization”
on page 585 :
Current 0 mA...20 mA 1 channel used
Current 4 mA...20 mA 1 channel used
The function of the LEDs is described under Diagnosis and displays / Displays Ä Chapter
1.5.3.1.1.8 “State LEDs” on page 592.
Unused input channels can be left open-circuited, because they are of low resistance.
Connection of Active-type Analog Sensors (Voltage) with no Electrically Isolated Power Supply to the
Analog Inputs
The following figure shows the connection of active-type analog sensors (voltage) with no elec-
trically isolated power supply to the analog input AI0. Proceed with the analog inputs AI1 to AI3
in the same way.
Device Specifications
I/O Modules > Digital/Analog I/O Modules
2019/04/173ADR010121, 13, en_US578