4
Label Sensors
2. E3U-GLK3_
Installation
Connect the sensor to the operating voltage (+). The Power LED
(green) lights up. Insert the label material and gently push down.
During the teach process do not remove the label material from
the detection area.
Manual auto-teach:
Press the teach key for min. 2 sec., until the status LED (yellow)
shows a continuous signal.
The auto-teach procedure is now active indicated by a fast flash-
ing Status LED. Move the labels through the slot. The auto-teach-
ing takes 2-10 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.
The result of the auto-teach procedure is indicated by the Status
LED and Power LED:
• Status LED and power LED flashing 2x: auto-teach procedure
successful. The sensor automatically switches into run mode.
• Status LED and power LED flashing 4x: Auto-teach proce-
dure not successful. Repeat the auto-teach procedure.
Remote auto-teach:
For remote auto-teach connect pin 2 (white wire) to the operating
voltage (+). The Status LED starts flashing quickly. Move the la-
bels through the slot.
The result of the remote auto-teach procedure is indicated by the
Status LED and Power LED as described before.
If pin2/white wire is not connected the sensor operates in run
mode.
If pin2/white wire is connected to ground the sensor is locked (no
manual auto-teach possible)
Exchanging the bottom part for E3U-GLK3_
For the detection of labels using the capacitive sensors E3U-
GLK3_, it is important that the label is firmly guided by the bottom
part.
To ensure a smooth guiding of larger labels up to 215 mm remove
the pre-mounted bottom part and replace by exchangeable bot-
tom part. For labels up to 175 mm depth use the E3U-GLK-EB1
and for labels up to 215 mm use the E3U-GLK-EB2. Attach the
bottom part again. The maximum mounting torque for the screws
is 0.8 Nm.
Refer to Operating Instructions to teach the sensors again.
The bottom parts are sold separately.
Cleaning
To clean the sensor and the bottom part remove any residues of
labels with a plastic scraper and residues of adhesion with alco-
hol.
2-10
s
min. 2x
min. 2
s
Power LED (green)
Status LED (yellow)
