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 electrically isolated power supply to the analog input AI0. Proceed with the analog inputs AI1 to AI3 in the same way.

Connection of active-type sensors (voltage) with no electrically isolated power supply to the analog inputs

Caution

:strong:Risk of faulty measurements!

The minus pole at the sensors must not have a too big 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 Digital/Analog Input/Output Module DA501 Digital/Analog Input/Output Module DA501 :

Voltage	0…10 V	1 channel used
Voltage	-10 V…+10 V	1 channel used

The function of the LEDs is described under Diagnosis and displays / Displays Digital/Analog Input/Output Module DA501.

To avoid error messages from unused analog input channels, configure them as “unused”.