CARLO GAVAZZI PD30CTB BP IO Serie Manuel D'instructions page 11

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2.4.1. Sensor front
The Background Suppression sensor emits light towards a target and measure the position of the light reflected
from the target. If the measured position value is equal to or less than a predefined position for the target, the
sensor changes the output state. The measured sensing distance is almost independent of the target colour.
2.4.1.1. SSC (Switching Signal Channel)
For presence (or absence) detection of an object in front of the face of the sensor, the following settings are
available: SSC1 or SSC2. Setpoints can be set from 20 ... 225 mm for PD30CTB.20..., 20 ... 275 mm for
PD30CTBS25... and 20 ... 375 mm for the PD30CTBR35... sensor *.
* It is not recommended to use settings higher than maximum 200, 250 and 350 mm depending on the sensor
type however under optimal conditions (ambient light environment and EMC noise etc.) the distance can be set
at higher value.
2.4.1.2. Switchpoint mode:
Each SSC channel can be set operate in 4 modes or be disabled. The Switchpoint mode setting can be
used to create more advanced output behaviour. The following switchpoint modes can be selected for the
switching behaviour of SSC1 and SSC2
Disabled
SSC1 or SSC2 can be disabled individually.
Single point mode
The switching information changes, when the distance passes the threshold defined in setpoint SP1, with
rising or falling distances, taking into consideration the hysteresis settings stored in the sensor.
Sensor
Hysteresis
ON
SP1
OFF
Example of presence detection - with non-inverted logic
Rev.01 - 08.2022 | MAN PD30CTB IO-Link ENG | © 2022 | CARLO GAVAZZI Industri
Sensing distance
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