Datasheet

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany [phone] • USA [phone] • Singapore [phone] • Internet http://www.pepperl-fuchs.com
Ultrasonic direct detection sensor UB400-F77-E2-V31
3
Release date: 2012-04-11 15:29 Date of issue: 2012-04-11 233240_eng.xml
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 progammable (Teach-In). Objects beyond the taught-in switching point are not detected (background
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 controller.
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 flashing 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 op-
posite 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 function, is not allowed!
Accessories
UB-PROG4-V31
Programming unit
OMH-ML7-01
Mounting bracket
V31-GM-2M-PVC
M8, 4-pin socket, PVC cable
V31-WM-2M-PVC
M8, 4-pin socket, PVC cable
unusable
area
Sensing range Output LED
Adjustment range
" -U
B
Off
" +U
B
On
" Undefined