17
High-Performance Distance Sensors
OPT2172 – 74 (Sensors with Teach-in)
The switching distance to the object can be taught in for both outputs by pressing the teach-in key on the
sensor (foreground teach-in).
Object
Sensor
Teach-in distance
Switching point
Foreground Teach-In for Switching Output 1
1. Mount the sensor in accordance with the mounting instructions.
2. Position the object in front of the sensor.
3. Press and hold the teach-in key until switching status indicator LED A1 starts blinking.
4. Release the teach-in key after 2 seconds.
5. The distance is taught in and the LED output 1 lights up in order to confirm successful teach-in.
Foreground Teach-In for Switching Output 2
1. Mount the sensor in accordance with the mounting instructions.
2. Position the object in front of the sensor.
3. Press and hold the teach-in key until switching status indicator LED A2 starts blinking.
4. Release the teach-in key after 5 seconds.
5. The distance is taught in and the LED output 2 lights up in order to confirm successful teach-in.
NOTE!
If teach-in is conducted without an object or if the object is too far from the sensor, switching
distance is set to the end of the setting range and LED A1/A2 LED blinks at a rate of 8 Hz.
The same applies to objects which are too close, but in this case switching distance is set to
the beginning of the setting range.
