Datasheet

Ultrasonic direct detection sensor UB400-F77-E0-V31
2
Release date: 2018-12-19 12:37 Date of issue: 2018-12-19 252738_eng.xml
Germany: [phone]Pepperl+Fuchs Group
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
USA: [phone] Singapore: [phone]
www.pepperl-fuchs.com [e-mail] [e-mail]
[e-mail]
Description of Sensor Function
The ultrasonic sensor transmits ultrasonic packets in quick succession and responds to their
reflection off the detected object. The sensor has a switch output. The switching point is pro-
gammable (Teach-In). Objects beyond the taught-in switching point are not detected (back-
ground suppression).
Teach-In of Switching Point SP
To teach in a switching point, proceed as follows:
1. Connect the sensor and turn on the operating voltage.
2. Place the object to be detected at the required distance.
3. Connect the teach-in input (ET) to -U
B
. This can be done usingthepushbutton or the con-
troller.
The LED will start flashing after 3 seconds to indicate that the sensor is ready to start the
teach-in process
(*)
.
4. Disconnect the teach-in input (ET) with -U
B
. The switching point SP has now been taught
in
(*)
.
(*) If no object is detected within the sensing range of the sensor, the sensor will start flash-
ing at a faster rate. The switching point remains unchanged.
Switching characteristics and display LED
" = Object position
Mounting instruction
If the sensor is operated at temperatures below 0 °C, use the supplied distance plate. Only use
the two rearmost mounting holes (located opposite to the transducer) for mounting the sensor.
Safety Note
The use of this device in applications, where the safety of persons depends from the devices func-
tion, is not allowed!
Dimensions
12
3.2
23
3.2
ø3.2
322
25
3 14
17
M8 x 1
189
31
unusable
area
Sensing range Output LED
Adjustment range
" -U
B
Off
" +U
B
On
" Undefined