Leuze electronic PRK3CLA Autokollimation User manual

PRK3CLA Autokollimation
Laser retro-reflective photoelectric sensors
Leuze electronic GmbH + Co. KG
[email protected]
In der Braike 1 D-73277 Owen Tel.: [phone]
We reserve the right to make changes – 2018/10 – 50137135-01
www.leuze.com•

1Bildteil
1
LOW
t = 20 ... 80 ms
t
HIGH
A
BC
2
LOW
t = 120 ... 180 ms
t
HIGH
A
BC
3
LOW
t = 220 ... 280 ms
t
HIGH
4
LOW
t = 320 ... 380 ms
t
HIGH
5
2

6
A
B
3

General information
– The laser retro-reflective photoelectric sensors PRK3CL… have an opti-
mized light beam propagation in the typical range of application of 0…1 m
(not to be confused with the operating range limit, which is 0…3 m in combi-
nation with a reflector MTKS50x50.1). This permits the reliable recognition
of the smallest of parts or the positioning of objects with maximum precision
across the entire area.
– For film6, the sensor's side edge must be aligned parallel to the side edge
of the reflective tape.
– The sensor is constructed on the basis of the autocollimation principle, i.e.,
light being transmitted and light being received propagate along the same
light axis. This permits the photoelectric sensor to be installed directly behind
small holes or diaphragms. The smallest permissible diaphragm diameter for
secure functioning is 3mm.
– The achievable resolution depends significantly on the device setting. De-
pending on the teach mode, the following values are possible:
Setting Detection from object size 1)
Max. operating range (factory setting) 1.5mm
Standard teach (low sensitivity) 1mm
Sensitive teach (increased sensitivity) 0.1…0.2mm
1) All specifications are typical values and may vary by a small amount for each
unit.
Sensor adjustment (teach) via teach button
The sensor is factory-adjusted for maximum operating range. The teach proce-
dure is only necessary if the sensor does not switch when an object enters the
light beam.
(1) Standard teach (low sensitivity) (2) Sensitive teach (increased sensitiv-
ity)
Clear the light path before teaching!
1 Hold down the teach button (2to7
s) until the yellow and green LEDs
flash simultaneously.
1 Hold down the teach button (7to12
s) until the yellow and green LEDs
flash alternately.
2 Release teach button – ready. 2 Release teach button – ready.
After teaching for normal sensor sensi-
tivity, the sensor switches for objects
with a minimum size of 1mm (see table
under "General Information").
After teaching for increased sensor sen-
sitivity, the sensor switches for objects
with a minimum size of 0.1…0.2mm
(see table under "General Information").
If both LEDs flash rapidly after the teach event, a teaching error has happened.
Check the alignment of the light beam onto the reflector and carry out another
teach.
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Device settings are stored fail-safe.
(3) Teach at max. operating range (fac-
tory setting)
(4) Set switching behavior (light/dark
switching)
Obstruct the light path before teaching! When the function is activated, the
switching output is always inverted rela-
tive to the previously set state.
1 Hold down the teach button (2to7
s) until the yellow and green LEDs
flash simultaneously.
1 Hold down the teach button longer
than 12s until only the green LED
flashes.
– LED ON: switching output now
light switching (output active if
light path is free)
– LED OFF: switching output
now dark switching (output ac-
tive if object in light path)
2 Release teach button – ready. 2 Release teach button – ready.
The sensor now operates with the maxi-
mum function reserve/operating range.
Note: The yellow LED is not dependent
on the switching behavior setting and
always indicates light switching in nor-
mal operation.
Device settings are stored fail-safe.
Sensor adjustment (teach) via teach input (pin2)
This device setting is only available for sensors in the PRK3CL…A3/…T… variant.
NOTICE
The following description applies to PNP switching logic!
Signal level LOW ≤ 2V
Signal level HIGH ≥ (UB-2V)
With the NPN models, the signal levels are inverted!
1
Standard teach (low sensitivity)
A Standard teach (low sensitivity) is performed
B Teach button is locked
C Teach button may now be operated again
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2
Sensitive teach (increased sensitivity)
A Sensitive teach (increased sensitivity) is performed
B Teach button is locked
C Teach button may now be operated again
3
Light switching logic
Switching outputs are light switching, i.e., outputs are active, when there is no ob-
ject currently in the light path.
With antivalent switching outputs: OUT1 (pin4) light switching, OUT2 (pin2)
dark switching.
4
Dark switching logic
Switching outputs are dark switching, i.e., outputs are active, when there is an ob-
ject currently in the light path.
With antivalent switching outputs: OUT1 (pin4) dark switching, OUT2 (pin2)
light switching.
Locking the teach button via the teach input
5
This device setting is only available for sensors in the PRK3CL...A3/...T... variant
(teach input via pin 2).
A static high signal (≥20 ms) at the teach input locks the teach button on the sen-
sor if required, such that no manual operation is possible (e.g., protection from er-
roneous operation or manipulation).
If the teach input is not connected or if there is a static low signal, the button is un-
locked and can be operated freely.
6
A Diaphragm diameter ≥ 3mm
B Typ. application range 0…1m
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IO-Link interface
Sensors in the PRK3C…/L… variant have a dual-channel architecture. The IO-
Link interface is available in accordance with specification 1.1.2 (July 2013) on pin
4 (OUT1). You can easily, quickly and economically configure the devices via the
IO-Link interface. Furthermore, the sensor transmits the process data via the IO-
Link interface and makes diagnostic information available through it.
Parallel to the IO-Link communication, the sensor can output the continuous
switching signal for object detection on OUT2. The IO-Link communication does
not interrupt this signal.
NOTICE
In the Sensor Studio configuration software, the following applies with
regard to the designations: Q1 = OUT1, Q2 = OUT2.
The sensors offer no data retention and no ISDU support. The device can only be
identified via VendorID and DeviceID.
IO-Link identification
VendorID dec/hex DeviceID dec/hex Device
338/0x152 2119/0x000847 PRK3CL1.A3/LP
IO-Link process data
Device output data
Data bit Assignment Meaning
0 Switching output Q1
(OUT1)
0 = inactive, 1 = active
1 Warning output autoCon-
trol
0 = no warning, 1 = warning
2 Sensor operation 0 = off, 1 = on
Sensor operation off when detection is
not possible (e.g during the teach event).
3 Not assigned Free
4 Not assigned Free
5 Not assigned Free
6 Not assigned Free
7 Not assigned Free
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Device input data
Data bit Assignment Meaning
0 Deactivation 0 = transmitter active, 1 = transmitter in-
active
1 Not assigned Free
2 Not assigned Free
3 Not assigned Free
4 Not assigned Free
5 Not assigned Free
6 Not assigned Free
7 Not assigned Free
Device-specific IODD
At www.leuze.com in the download area for IO-Link sensors you will find the IODD
zip file with all data required for the installation.
IO-Link parameters documentation
The complete description of the IO-Link parameters can be found in the *.html
files. Double-click on a language variant:
– German: *IODD*-de.html
– English: *IODD*-en.html
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 Sensor Studio configuration
software (in the download area of the sensor at www.leuze.com).
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Function block Function Description
Configuration Logical function of
Q2
If the function Q2= switching output is se-
lected, 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.
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.
Switching delay On activates the internal time function.
Function selection
of the switching de-
lay
Activation of a suitable switching delay is
possible. It is not possible to combine
switching delays.
Time base of the
switching delay
Possibility of selecting a time base.
Factor for the time
base of the switch-
ing delay
To adapt the time base, it is multiplied by
the entered factor. Only whole-number fac-
tors from 1to15 are permitted.
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Function block Function Description
Commands
The first four
commands
correspond to
the functions
which can be
performed at
the sensor us-
ing the teach
button or the
remote teach
function.
Sensitive teach
for the detection of
a transparent ob-
ject (e.g. empty sin-
gle bottle)
Clear the light path before activation.
Standard teach
for the detection of
a partially transpar-
ent object (e.g. bot-
tle made of colored
glass)
Clear the light path before activation.
Light switching
Dark switching
Switch the process
data display mode
to analog value
Activate to display diagrams on the Process
tab when using Sensor Studio configuration
software.
Laser safety notices - laser class1
WARNING
LASER RADIATION – LASER CLASS 1
The device satisfies the requirements of IEC60825-1:2007
(EN60825-1:2007) safety regulations for a product of laser class1 as
well as the U.S.21CFR1040.10 regulations with deviations corre-
sponding to "Laser Notice No.50" from June 24, 2007.
ÄObserve the applicable statutory and local laser protection regula-
tions.
ÄThe device must not be tampered with and must not be changed
in any way.
There are no user-serviceable parts inside the device.
ÄRepairs must only be performed by Leuze electronic GmbH + Co.
KG.
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