Datasheet

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] PRK3CL Laser - 02
[e-mail] • www.leuze.com
Sensor adjustment (teach) via teach input (pin 2)
The following description applies to PNP switching logic!
Signal level LOW ≤ 2V
Signal level HIGH ≥ (U
B
-2V)
With the NPN models, the signal levels are inverted!
Standard teach (low sensitivity)
Sensitive teach (increased sensitivity)
Light switching logic
Switching outputs light switching, this means outputs active when object is detected.
In the case of complementary switching outputs, OUT1 (pin 4) light switching, OUT2 (pin 2) dark switching.
Dark switching logic
Switching outputs dark switching, this means outputs inactive when object is detected.
In the case of complementary switching outputs, OUT1 (pin 4) dark switching, OUT2 (pin 2) light switching.
Locking the teach button via the teach input
A static high signal (≥ 20ms) at the teach
input locks the teach button on the sensor if
required, such that no manual operation is
possible (e.g., protection from erroneous oper-
ation or manipulation).
If the teach input is not connected or if there is
a static low signal, the button is unlocked and
can be operated freely.
LOW
t = 20 ... 80 ms
t
HIGH
Standard teach (low sensitivity) is performed
Teach button may now be operated againTeach button is locked
LOW
t = 120 ... 180 ms
t
HIGH
Sensitive teach (increased sensitivity) is performed
Teach button may now be operated againTeach button is locked
LOW
t = 220 ... 280 ms
t
HIGH
LOW
t = 320 ... 380 ms
t
HIGH
PRK3CL autocollimation Laser retro-reflective photoel. sensor with polariz. filter