With a Datum Algorithm, the reference surface is noted in order to stably detect workpieces. This algorithm is based on distance and received light pattern.
Easy tuning by simply pressing the [SET] button with and without a target present.
When performing the datum tuning (reference surface calibration) with a target on a conveyor (background), the values are set slightly above and slightly below the conveyor position. With no workpiece in place, the light waveform falls within this range -> [ Output OFF ].
The CMOS light receiving position changes -> The distance changes -> The workpiece is judged as present -> [ Output ON ]
2 peaks appear on the waveform -> The light receiving pattern changes -> The workpiece is judged as present -> [ Output ON ]
The light is not reflected properly -> The distance changes -> The workpiece is judged as present -> [ Output ON ]