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 sensor UB2000-F42-I-V15
4
Release date: 2011-08-16 09:05 Date of issue: 2011-08-16 133990_eng.xml
Synchronisation
The sensor provides a synchronisation port to suppress mutual influencing. If this port has not been connected, the sensor
works at an internally generated cycle rate. Several sensors may be synchronised via the following options.
External synchronisation:
The sensor may be synchronised via the external application of a square wave voltage. A synchronisation pulse on the syn-
chronisation input initiates a measuring cycle. The pulse width must be greater than 100 µs. The measuring cycle is started with
the falling edge. A low level > 1 s or an open synchronisation input initiate the transition to normal sensor mode. A high level on
the synchronisation input deactivates the sensor.
Two modes are possible:
• Several sensors are controlled via the same synchronisation signal. The sensors work in common mode.
• The synchronisation pulses are forwarded at cyclic intervals to respectively one single sensor. The sensors work in multiplex mode.
Self-synchronisation:
The synchronisation ports of up to 5 sensors suitable for self-synchronisation are connected to each other. These sensors work
in multiplex mode after Power on. The On delay increases depending on the number of sensors to be synchronised. While the
learn mode is active, no synchronisation is possible (and vice-versa). To specify the switching points, the sensors must be op-
erated in non-synchronised mode.
Note:
If the synchronisation option is not used, the synchronisation input must be connected to ground (0V) or the sensor must be
operated with a (4-pole) V1 connecting cable.