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.

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

Attention

:strong:Risk of faulty measurements!

The negative pole/earthing potential 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.

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

For the measuring ranges that can be configured, plese refer to the sections Measuring Ranges CI581-CN and Parameterization CI581-CN.

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