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 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 DA502 - Digital/Analog Input/Output Module DA502 - Digital/Analog Input/Output Module:

Voltage	0…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 DA502 - Digital/Analog Input/Output Module.

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