ABB AC500 PLC - Connection of Passive-type Analog Sensors (Current) to the Analog Inputs

Fig. 98: Connection of active-type sensors (voltage) with no electrically isolated power supply to
the analog inputs
CAUTION!
Risk of faulty measurements!
The negative pole at the sensors must not have too large a potential difference
with respect to ZP (max. ±1 V within the full signal range).
Make sure that the potential difference never exceeds ±1 V.
The following measuring ranges can be configured Ä Chapter 1.5.3.1.2.6 “Parameterization”
on page 618
Ä Chapter 1.5.3.1.2.9 “Measuring Ranges” on page 625:
Voltage 0 V...10 V 1 channel used
Voltage -10 V...+10 V 1 channel used
For a description of the function of the LEDs, please refer to Diagnosis and displays / Displays
Ä Chapter 1.5.3.1.2.8 “State LEDs” on page 625.
To avoid error messages from unused analog input channels, configure them as "unused".
Connection of Passive-type Analog Sensors (Current) to the Analog Inputs
The following figure shows the connection of passive-type analog sensors (current) 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_US612