Omron E3U-GL1, E3U-GL2, E3U-GLK31, E3U-GLK32 Datasheet
1E3U-GL
Photoelectric and capacitive label sensors in fork shape housing
E3U-GL
The E3U-GL range of label sensors offers a solution to detect
all standard as well as challenging labels (e.g. transparent la-
bels with metallized parts). Stable operation, where other sen-
sors may require frequent re-teaching, improves the reliability
of the labeling process. Fast and easy set-up reduces the time
and effort during change over periods.
• Photoelectric sensors for the detection of a wide range of
commonly used labels
• Capacitive sensors for the detection of transparent labels
• Easy manual or remote teach for simple and fast label
change over
• Reliable operation and exact positioning without re-adjust-
ment
Features
Stable operation and quick set-up
Stable operation eliminates the need to re-adjust the sensor
due to temperature changes or other influences during pro-
duction.
The E3U-GL offers quick and easy manual or remote teach-
ing, allowing fast and efficient change overs.
High positional accuracy
The The photoelectric E3U-GL_ label sensors have been me-
chanically designed to allow easy mounting close to the dis-
penser edge. This reduces the potential of positional drift
caused by the carrier film stretching.
Detection of transparent labels
The E3U-GLK capacitive sensors allow the detection of transparent labels even when partially metallized. The measurement and
reference system ensures a high accuracy and resolution compensating for environmental changes (temperature, humidity,…).
Measurement system
Reference
system
2 Label Sensors
Ordering Information
Accessories
Sensor I/O connectors
Note: For the complete list of sensor I/O connectors refer to E26E Accessories datasheet.
Specifications
Note: The actual minimum values depend on the combination of material, interspace between labels and label thickness and length.
Sensor type Typical application Sensing
distance
(slot width)
Slot
depth
Connection method Operation mode Order Code
photoelectric
Sensor for standard
labels
5mm
50 mm –––
Light-on / Darkon selectable
NPN / PNP out
E3U-GL1-M3
Sensor for standard
labels with large slot
depth
100 mm –––
E3U-GL2-M3
capacitive Sensor for thin
transparent labels
0.6 mm
85 mm
– ––
E3U-GLK31-M1
Sensor for
transparent labels
1mm
– ––
E3U-GLK32-M1
Shape Type Feature Order Code
Exchangeable bottom part for
E3U-GLK_
For large labels up to 175 mm depth E3U-GLK-EB1
For large labels up to 215 mm depth E3U-GLK-EB2
Size Shape Type Features Material Order code
Nut Cable
M8 General pur-
pose
(screw)
4 pin Brass (CuZn) PVC 2 m
PUR 2 m
XS3F-M8PVC4S2M
XS3F-M8PUR4S2M
XS3F-M8PVC4A2M
XS3F-M8PUR4A2M
M12 General pur-
pose
(screw)
3 wire Brass (CuZn) PVC 2 m
PUR 2 m
XS2F-M12PVC3S2M
XS2F-M12PUR3S2M
XS2F-M12PVC3A2M
XS2F-M12PUR3A2M
4 wire PVC 2 m
PUR 2 m
XS2F-M12PVC4S2M
XS2F-M12PUR4S2M
XS2F-M12PVC4A2M
XS2F-M12PUR4A2M
Item E3U-GL1 E3U-GL2 E3U-GLK31
*1
*1.
Suitable for label thickness <0.5 mm. The label length and the label interspace must be >2 mm
E3U-GLK32
*2
*2.
Suitable for label thickness <0.9 mm. The label length and the label interspace must be >2 mm
Sensing distance (slot width) 5 mm 0,6 mm 1 mm
Slot depth 50 mm 100 mm 85 mm
Sensing method Photoelectric (infrared LED) Capacitive
Power supply voltage 10 to 35 VDC
Power consumption 35 mA 70 mA
Operating frequency 3000 Hz typically 1500 Hz (depending on label material)
Control output Push pull
Load current: 200 mA;
light-on/dark-on selectable
NPN + PNP
Load current: 200 mA;
light-on/dark-on selectable
Push pull
Load current: 200 mA; light-on/dark-on selectable
Sensitivity adjustment Teach-in, remote teach Teach-in Teach-in, remote teach
Ambient illumination 10.000 lx n.a
Ambient temperature -10 to 60°C 0 to 60°C
Degree of protection EN 60529: IP67 EN 60529: IP65
Indicators Status indicator: yellow
Power indicator: green
Status indicator: yellow Status indicator: yellow
Power indicator: green
Weight 50 g 80 g 170 g
Material (case) zinc diecast, black lacquered finish Aluminium, black anodized
3E3U-GL
Operation
1. E3U-GL1 / E3U-GL2
Installation:
Connect the sensor to the operating voltage (+). The Power LED
(green) lights up. Place the label material in the correct position
(the detection beam spot is indicated by marks in the housing).
During the teach process do not remove the label material from
the detection area.
Manual auto-teach:
Press teach key for min. 2 sec., until the yellow Status LED
shows a continuous signal.
The auto-teach procedure is now active indicated by a fast flashing Status LED. Move the labels through the slot. The auto-teaching takes 2-8 seconds depending on the complexity of the labels.
During the auto teach procedure min. 2 labels should be pulled
through. For higher stability the number of labels that are pulled
through should be as high as possible.
For E3U-GL1 For E3U-GL2
The result of the auto-teach procedure is indicated by the Status
LED:
• LED flashing 2x: auto-teach procedure successful. The sensor automatically switches into run mode.
• LED flashing 4x: auto-teach procedure not successful. Repeat the auto-teach procedure.
Remote auto-teach (E3U-GL1 only):
For remote auto-teach connect pin 2 (white wire) to the operating
voltage (+). The Status LED starts flashing quickly. Move the labels through the slot.
The result of the auto-teach procedure is indicated by the Status
LED as described before.
If pin 2 / white wire is not connected the sensor operates in run
mode.
If pin 2 / white wire is connected to ground the sensor is locked
(no manual auto-teach possible)
Light-on / Dark-on operation
To convert L-On/D-on operation press the teach button for more
than 6 sec.
Status-LED
min. 2 s
For E3U-GL1 For E3U-GL2
2-8 s
min. 2x
Status-LED
min. 6 s
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