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Switching status of the outputs
Output function Object distance (D) Switching status
[Hno] D < [SPx] closed
D > [SPx] open
[Hnc] D < [SPx] open
D > [SPx] closed
10.2.3 Dynamic hysteresis
The measured values detected by the sensor vary depending on the situation� The
highest fluctuation of measured values occurs in case of a small signal to noise
ratio� This is the case when very dark targets are detected and when there is very
much ambient light� Therefore, the reset point is automatically set by the sensor
after [SP1] has been selected�
Very dark background = high hysteresis is selected�
Very bright background = small hysteresis is selected�
The minimum distance between object and background is reduced if the
background is very bright (e�g� white)�
A bright background enables the detection of smaller objects�
10.2.4 Hysteresis function for OUT2
The hysteresis keeps the switching status of the output stable if the measured
value varies about the reflectivity value� The selected switch point [SP2] is the set
point� The reset point is automatically set above the selected switch point [SP2] by
the sensor� The nominal reflectivity difference between set and reset point is the
hysteresis which is indicated in the data sheet�
Example Hno
1� For the output function [Hno] the output switches when the object reflectivity
increases and when the set point (A) is reached�
2� When the object gets darker, the output does not switch back before the value
is below the reset point (B)�
The reset point (B) is smaller than the set point (A)�
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