Connection of Active-type Analog Sensors (Voltage) with no Electrically \ Isolated Power Supply

The following figure shows the connection of active-type sensors (voltage) with no electrically isolated power supply.

Connection of active-type sensors (voltage) with no electrically isolated power supply

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

*) if the sensor can provide this signal range

The measuring ranges are described in the section Measuring Ranges CI511-ETHCAT CI511-ETHCAT.

In order to avoid error messages or long processing times, it is useful to configure unused analog input channels as “unused”.