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 UB1000-18GM75-E5-V15
3
Release date: 2011-08-12 13:07 Date of issue: 2011-08-12 204530_eng.xml
External synchronisation
The sensor can be synchronised by the external application of a square wave voltage. A synchronisation pulse at the synchro-
nisation input starts a measuring cycle. The pulse must have a duration greater than 100 µs. The measuring cycle starts with
the falling edge of a synchronisation pulse. A low level > 1 s or an open synchronisation input will result in the normal operation
of the sensor. A high level at the synchronisation input disables the sensor.
Two operating modes are available
1. Multiple sensors can be controlled by the same synchronisation signal. The sensors are synchronised.
2. The synchronisation pulses are sent cyclically to individual sensors. The sensors operate in multiplex mode.
Internal synchronisation
The synchronisation connections of up to 5 sensors capable of internal synchronisation are connected to one another. When
power is applied, these sensors will operate in multiplex mode. The response delay increases according to the number of sen-
sors to be synchronised. Synchronisation cannot be performed during TEACH-IN and vice versa. The sensors must be operated
in an unsynchronised manner to teach the switching point.
Note:
If the option for synchronisation is not used, the synchronisation input has to be connected to ground (0V) or the sensor has to
be operated via a V1 cable connector (4-pin).
Adjusting the switching points
The ultrasonic sensor features a switch output with two teachable switching points. These are set by applying the supply voltage
-U
B
or +U
B
to the TEACH-IN input. The supply voltage must be applied to the TEACH-IN input for at least 1 s. LEDs indicate
whether the sensor has recognised the target during the TEACH-IN procedure. Switching point A1 is taught with -U
B
, A2 with
+U
B
.
Five different output functions can be set
1. Window mode, normally-open function
2. Window mode, normally-closed function
3. One switch point, normally-open function
4. One switch point, normally-closed function
5. Detection of object presence
Switching points may only be specified directly after Power on. A time lock secures the adjusted switching points
against unintended modification 5 minutes after Power on. To modify the switching points later, the user may specify
the desired values only after a new Power On.
TEACH-IN window mode, normally-open function
• Set target to near switching point
• TEACH-IN switching point A1 with -U
B
• Set target to far switching point
• TEACH-IN switching point A2 with +U
B
TEACH-IN window mode, normally-closed function
• Set target to near switching point
• TEACH-IN switching point A2 with +U
B
• Set target to far switching point
• TEACH-IN switching point A1 with -U
B
TEACH-IN switching point, normally-open function
• Set target to near switching point
• TEACH-IN switching point A2 with +U
B
• Cover sensor with hand or remove all objects from sensing range
• TEACH-IN switching point A1 with -U
B
TEACH-IN switching point, normally-closed function
• Set target to near switching point
• TEACH-IN switching point A1 with -U
B
• Cover sensor with hand or remove all objects from sensing range
• TEACH-IN switching point A2 with +U
B
TEACH-IN detection of object presence
• Cover sensor with hand or remove all objects from sensing range
• TEACH-IN switching point A1 with -U
B
• TEACH-IN switching point A2 with +U
B
Default setting of switching points
A1 = unusable area
A2 = nominal sensing range
LED Displays
Adjusting the sound cone characteristics:
Displays in dependence on operating mode Red LED Yellow LED
TEACH-IN switching point:
Object detected
No object detected
Object uncertain (TEACH-IN invalid)
off
flashes
on
flashes
off
off
Normal operation off switching
state
Fault on previous state