Leuze GSU12 User manual

GSU12
Ultrasonic label fork
Leuze electronic GmbH + Co. KG
[email protected]
In der Braike 1 73277 Owen Tel.: [phone]
We reserve the right to make changes – 2020/03/17 – 50143644
www.leuze.com•

1Bildteil
1
A
B
2
A
B
C
2-7 s
> 12 s
2

3
4
2-7 s
5
> 12 s
3

Intended use
The ultrasonic label forks are ultrasonic sensors for contactless detection of the
gap between two consecutive labels on a carrier tape.
NOTICE
Observe intended use!
This product is not a safety sensor and is not intended as personnel
protection.
ÄOnly allow competent persons to put the product into operation.
ÄOnly use the product in accordance with its intended use.
Function and device operation
The label material used determines the achievable precision and the reliability of
gap detection between labels.
– Light switching: signal in the label gap.
– Dark switching: signal on the label.
1
A Label center position
B Label run
ÄTo achieve a high switching accuracy, place the label tape on the lower fork
with slight tension.
ÄAlign the label tape with the "Label center position" marking.
Overview of operating structure
2
A Standard function
Normal operation after switch-on
B Manual teach
Can be executed as dynamic teach
C Set switching behavior (light/dark switching)
Standard function
During operation the sensor is always in this function.
The sensor detects label gaps with high precision and speed.
This is indicated by the yellow OUTLED and the switching output.
4
EN

3
ONLED
green
Constantly ON when operating voltage is applied.
OUTLED
yellow
Indicates the switching signal.
LED is ON if the sensor detects label gaps.
The display is independent of the output setting.
WARNLED
continuous red
light
OFF: error-free operation.
ON: teaching error caused by unfavorable label material.
Manual teach while the label tape is passing through (dynamic)
Sensor setting via teach button
Preparation: Insert label tape into the sensor.
4
ÄPress the teach button until the green ON LED and the yellow OUT LED flash
synchronously.
ÄRelease the teach button.
ÄAllow the label tape to advance through the sensor at a maximum speed of
50m/min. The sensor indicates the belt transport by a more rapid synchro-
nous flashing of the green ON LED and yellow OUT LED.
ÄBriefly press the teach button to end the manual teach. The sensor switches
to the standard function.
Approx. 3…7 labels should be advanced through the sensor in order to achieve
stable switching points. The number of labels to be transported is always based
on the material combination.
If the teach event is faulty (e.g. unfavorable material combination, uneven trans-
port, jittering during transport), the red WARNLED illuminates.
ÄRepeat the teach event.
If the fault cannot be rectified, the label material cannot be detected with the de-
vice.
NOTICE
During the manual teach process, a 2-point calibration is performed on
the carrier and the label.
5
EN

Adjusting the switching behavior of the switching output (light/dark
switching)
5
ÄPress the teach button until only the green ON LED flashes.
ÄRelease the teach button.
The green ON LED flashes for another 2 seconds and the yellow OUT LED indi-
cates the changed switching behavior for 2 seconds:
– Yellow OUTLED ON: switching output, light switching (signal in the label
gap)
– Yellow OUTLED OFF: switching output, dark switching (signal on the label)
6
EN