Leuze GSX14E User manual

GSX14E
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 – 2020/05/07 – 50143648
www.leuze.com•

1Figure part
1
A
C
B
2
2

3
2-7 s
4
2-7 s
5
7-12 s
3

6
> 12 s
7
7-12 s
8
> 12 s
4

9
+
< 2 s < 2 s
–
10
> 7 s
+
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A
B
T
t
HIGH
LOW
≥ 20 ms ≥ 20 ms
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12
13
14 mm
14 mm
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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.
Overview of the operating structure via teach and label buttons
Function Configuration via buttons
Standard function Normal operation after switch-on
easyTeach
(2-point calibration on carrier and label)
Press the teach(+) button: 2…7s
Static teach
(1-point calibration on carrier)
Press the teach(+) button: 7…12s
Set switching behavior
(light/dark switching)
Press the teach(+) button: >12s
easyTune function – Manual fine tuning
of the switching threshold
Increase sensitivity
Reduce sensitivity
Press the teach(+) button: <2s
Press the label(-) button: <2s
Select active detection process Press the label(-) button: 2…7s
Deactivate/activate the ALC (Auto Level
Control) function
(automatic optimization of the switching
threshold)
Press the label(-) button: 7…12s
Set the easyTeach mode Press the label(-) button: >12s
Manual locking/unlocking of the buttons
on the device
Simultaneously press the teach button
(+) and the label button (-): > 7 s
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A Ultrasonic detection process position
B Optical detection process position
C Label run
ÄTo achieve a high switching accuracy, place the label tape on the lower fork
with slight tension.
ÄOrient the label tape so that it is guided both under the "
Ultrasonic detection
process position" marking as well as under the "
Optical detection process po-
sition" marking.
GSX14E standard functions
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.
2
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.
ON:
ALC (Auto Level Control) function is faulty.
ALCLED
Yellow
ALC (Auto Level Control) function is active.
CLEARLED
Yellow
Ultrasonic detection process is active.
PAPERLED
Yellow
Optical detection process is active.
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Select active detection process
The GSX14E forked sensor can detect label gaps with the ultrasonic detection
process or with the
optical detection process.
– In many cases, labels can, in principle, be reliably detected with both detec-
tion processes.
– The advantage of the optical detection process over the ultrasonic detection
process is that it has better repeatability, even at high conveyor speeds – re-
alized through short response time and high switching frequency.
– The advantage of the ultrasonic detection process over the optical detection
process is that transparent labels can also be reliably detected.
The operator can change the active detection process of the sensor:
– After successfully ending a teach event
– Before starting a teach event
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ÄPress the label button until the green ONLED and the yellow OUTLED flash
synchronously.
ÄRelease the label button.
The sensor indicates the currently active detection process via the yellow CLEAR
LED or the yellow PAPERLED:
– CLEARLED:
ultrasonic detection process is active
– PAPERLED:
optical detection process is active
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easyTeach while the label tape is passing through (dynamic)
During the easyTeach process, a two-point calibration is performed on the carrier
and the label.
NOTICE
With respect to detection reliability, the easyTeach process is gener-
ally to be preferred over the static teach process.
Preparation: Insert label tape into the sensor.
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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.
ðThe sensor indicates the belt transport by a more rapid synchronous
flashing of the green ON LED and yellow OUT LED.
ðThe sensor indicates the currently active detection process via the yellow
CLEARLED or the yellow PAPERLED:
CLEARLED:
ultrasonic detection process is active
PAPERLED:
optical detection process is active
– If sufficient teach values are determined, the sensor automatically terminates
the teach event and goes into standard mode.
The transport of the label tape can be stopped immediately.
– The number of labels to be transported is always based on the material com-
bination. From experience, approximately 2-10 labels should be advanced
through the sensor.
– If the teach event is faulty (e.g., unfavorable material combination, uneven
transport, jittering during transport), the red WARNLED illuminates and the
warning output (if present for the sensor model) is activated.
If the fault cannot be rectified, e.g., via the
easyTune function, the label ma-
terial cannot be detected with the device.
Intelligent mode (preset on delivery)
After ending the teach event, the sensor automatically selects the appropriate de-
tection process for the present label-carrier combination (
ultrasonic or optical ).
NOTICE
The teach event is performed in parallel with both detection processes,
ultrasonic and optical . The teach values of both detection processes
for the corresponding label-carrier combination are stored in the sen-
sor.
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