Datasheet

PRK3CT - 02 2017/02
Functions configurable via IO-Link
PC configuration and visualization is performed comfortably with the USB-IO-Link Master SET US2-IL1.1 (part no. 50121098) and
the Leuze Sensor Studio (in the download area of the sensor at www.leuze.com
).
Function block Function Description
Configuration
Logical function of Q2
Q2 can optionally be configured as a warning output and, with active high signal, then
indicates when the control limit for contamination compensation has been reached
(tracking). The reflector must now be cleaned.
If the function Q2 = switching output is selected, the switching function corresponds to
the current setting which was selected via the L/D changeover.
If Q2 = inv. switching output is selected, the switching behavior of the output is inverted.
Key Lock On disables the teach button on the sensor.
Easy Tune
Activates manual fine adjustment of the switching threshold at the sensor.
To achieve a better function reserve, it can be advantageous to change the taught switch-
ing threshold.
Used for this purpose is the easyTune function, which is similar in principle to a potenti-
ometer. When activated, the switching threshold can be adapted by pressing the button
(short or long button operation) on the sensor.
Short operation of the teach button (2ms to 200 ms) increases the sensitivity slightly;
long operation of the button (200ms to 2s) reduces the sensitivity accordingly.
The green LED on the sensor lights up briefly as confirmation each time the button is
pressed. If the upper or lower end of the adjustment range is reached, the green and yel-
low LEDs flash rapidly.
L/D switching
In the factory setting, outputs Q1 and Q2 are antivalent switching outputs:
Light switching: Q1 = light switching, Q2 = dark switching.
Dark switching: Q1 = dark switching, Q2 = light switching.
Tracking
(only with PRK3C…TT…)
Activates the tracking function. The sensor measures the received signal level continu-
ously. System contamination at the reflector and/or sensor reduces the signal and can
then be compensated automatically. The control rate depends on the number of gaps in
the process. This tracking function increases the interval between cleaning sessions con-
siderably.
Switching delay On activates the internal time function.
Function selection of the
switching delay
Activation of a suitable switching delay is possible. It is not possible to combine switching
delays.
Time base of the switch-
ing delay
Possibility of selecting a time base.
Factor for the time base of
the switching delay
To adapt the time base, it is multiplied by the entered factor. Only whole-number factors
from 1 to 15 are permitted.
Function block Function Description
Commands
(The commands with a
gray background cor-
respond to the func-
tions which can be
performed at the sen-
sor using the teach
button or the remote
teach function.)
High sensitive teach
for the detection of a highly transparent object (e.g. filled sin-
gle bottle, glass pane or film)
Clear the light path before activation.
Sensitive teach
for the detection of a transparent object (e.g. empty single
bottle)
Clear the light path before activation.
Switch on tracking (only with PRK3C…TT…) See configuration.
Light switching
Dark switching
Switch the process data display mode to analog value
Activate to display diagrams on the Process tab when
using Leuze Sensor Studio.
PRK3CT