O P E R A T I N G I N S T R U C T I O N S
WTF26
Described product
W26
WTF26
Manufacturer
SICK AG
Erwin-Sick-Str. 1
79183 Waldkirch
Germany
Legal information
This work is protected by copyright. Any rights derived from the copyright shall be
reserved for SICK AG. Reproduction of this document or parts of this document is
only permissible within the limits of the legal determination of Copyright Law. Any modi‐
fication, abridgment or translation of this document is prohibited without the express
written permission of SICK AG.
The trademarks stated in this document are the property of their respective owner.
© SICK AG. All rights reserved.
Original document
This document is an original document of SICK AG.
2006/42/EC
NO
SAFETY
2
8025684.9RH / 15.01.2021 | SICK
Subject to change without notice
Contents
1 Safety information............................................................................ 4
1.1 General safety notes................................................................................ 4
1.2 Notes on UL approval............................................................................... 4
2 Intended use...................................................................................... 4
3 Operating and status indicators...................................................... 4
4 Mounting............................................................................................. 5
5 Electrical installation........................................................................ 5
6 Additional functions.......................................................................... 7
7 Commissioning.................................................................................. 7
7.1 Alignment.................................................................................................. 7
7.2 Check the application conditions............................................................ 8
7.3 Sensing range setting............................................................................... 8
7.4 Time function setting................................................................................ 10
7.5 Setting light/dark switching..................................................................... 11
8 Process data structure..................................................................... 11
9 Troubleshooting................................................................................. 12
10 Disassembly and disposal............................................................... 12
11 Maintenance...................................................................................... 13
12 Technical data.................................................................................... 13
12.1 Dimensional drawings.............................................................................. 14
CONTENTS
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Subject to change without notice
3
1 Safety information
1.1 General safety notes
■
Read the operating instructions before commissioning.
■
Connection, mounting, and configuration may only be performed by trained
specialists.
■
2006/42/EC
NO
SAFETY
Not a safety component in accordance with the EU Machinery Directive.
■
Do not install the sensor at locations that are exposed to direct sunlight
or other weather influences, unless this is expressly permitted in the operating
instructions.
■
These operating instructions contain information required during the life cycle of
the sensor.
1.2 Notes on UL approval
The device shall be supplied from an isolating transformer having a secondary overcur‐
rent protective device that complies with UL 248 to be installed in the field rated either:
a) max 5 amps for voltages 0 ~ 20 V (0 ~ 28.3 V peak), or
b) 100 / Vp for voltages of 20 ~ 30 V (28.3 ~ 42.4 V peak).
Alternatively, they can be supplied from a Class 2 power supply.
UL Environmental Rating: Enclosure type 1
2 Intended use
The WTF26 is an opto-electronic photoelectric proximity sensor (referred to as “sensor”
in the following) for the optical, non-contact detection of objects, animals, and persons.
If the product is used for any other purpose or modified in any way, any warranty claim
against SICK AG shall become void.
The WTF26 is particularly suited to the detection of flat, glossy, contrast-rich, and
uneven objects.
3 Operating and status indicators
WTF26x-xxxxxx10
WTF26x-xxxxxx20
WTF26x-xxxxxx11
WTF26x-xxxxxx21
WTF26x-xxxxxx12
WTF26x-xxxxxx22
2
3
4
1
2
1
4
3
6
2
1
4
3
5
1 SAFETY INFORMATION
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Subject to change without notice
WTF26x-xxxxxx30 WTF26x-xxxxxx31 WTF26x-xxxxxx32
2
1
4
3
2
1
3
4
6
2
1
3
4
5
1
BluePilot blue: sensing range display
2
Press-turn element / Potentiometer / Teach-Button: adjusting the sensing range
3
LED indicator yellow: status of received light beam
4
LED indicator green: supply voltage active
5
Press-turn element: time function adjustment
6
Teach pushbutton: adjustment of light/dark switching
4 Mounting
Mount the sensor using a suitable mounting bracket (see the SICK range of acces‐
sories).
Note the sensor’s maximum permissible tightening torque of < 1,3 Nm.
Note the preferred orientation of the object relative to the sensor, cf. see figure 3,
page 14.
5 Electrical installation
The sensors must be connected in a voltage-free state. The following information must
be observed, depending on the connection type:
– Male connector connection: Note pin assignment
– Cable: wire color
Only supply/switch on the voltage once all electrical connections have been estab‐
lished.
Explanations of the connection diagram (following tables):
Alarm = alarm output
Health = alarm output
MF (pin 2 configuration) = external input, teach-in, switching signal
Q
L1
/C = switching output, IO-Link communication
Test = test input
U
B
: 10 ... 30 V DC
Table 1: Connections
Wxx26x- x1 x4 xH x5 xI
1 = BN
2 = WH
3 = BU
4 = BK
5= GY
1
4
3
1
2
4 3
0.14 mm
2
AWG26
1
2
4 3
5
0.14 mm
2
AWG26
MOUNTING 4
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5
Table 2: DC
WTF26x- xxX6XxxxA00 xxX6Xxxx
A01-A99
Push-pull xx161 xx162 xx168 xx16A xx16L xx16N xx16x
PNP xx861 xx862 xx868 xx86A xx86L xx86N xx86x
1 = BN + (L+)
2 = WH MF
3 = BU - (M)
4 = BK Q
L1
/ C
Default:
MF
Q
Q
Test → L+ No func‐
tion
Test → L+ No func‐
tion
www.sick.
com
8022709
Default:
Q
L1
/ C
Q
Q
Q Q
Q Q www.sick.
com
8022709
Table 3: DC
WTF26x- xxXXXxxxZZZ
Push-pull xx111 xx112 xx421 xx422 xx721 xx722
PNP xx811 xx812 xxB21 xxB22 -
BN + (L+)
WH Q
Q
Q
Q
Q
Q
BU - (M)
BK
Q
Q
Q
Q
Q
Q
GR - - Test → L+ Test → L+ Test → M Test → M
Table 4: Push-pull, PNP, NPN
Push-pull
PNP
NPN
+ (L+)
Q ≤ 100 mA
‒ (M)
Push-pull
PNP
NPN
+ (L+)
Q ≤ 100 mA
‒ (M)
Push-pull
PNP
NPN
+ (L+)
Q ≤ 100 mA
‒ (M)
Push-pull
PNP
NPN
+ (L+)
Q ≤ 100 mA
‒ (M)
5
ELECTRICAL INSTALLATION
6
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6 Additional functions
Test input
Test input: The sensors WTF26 feature a test input (“TI” or “Test” on the connection
diagram [see table 2]), which can be used to switch the sender off and, therefore,
check that the sensor is functioning correctly: If female cable connectors with LED
indicators are used, you have to ensure that the TI is assigned accordingly.
It is important that there is no object between the sensor and background; activate the
test input (see the connection diagram see table 2).
The send LED is shut down or the detection of an object is simulated. Refer to table 5
to check the function. If the switching output fails to behave in accordance with the
graphic, check the application conditions, see "Troubleshooting", page 12.
Table 5: Test
Test → M Test → L+
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
7 Commissioning
7.1 Alignment
WTF26P: Align sensor on background. Select the position so that the red emitted light
beam hits the objects. You must ensure that the optical opening (front screen) of the
sensor is completely clear [see figure 1].
WTF26I: Align the sensor with the background. Select the position so that the infrared
light (not visible) hits the objects. The correct alignment can only be detected via the
LEDs, see figure 1 and table 4. You must ensure that the optical opening (front screen)
of the sensor is completely clear.
ADDITIONAL FUNCTIONS 6
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7
Figure 1: Alignment
7.2 Check the application conditions
WTF26 are photoelectric proximity sensors with foreground suppression. The photoelec‐
tric proximity sensor requires a background as a reference. The remission and position
of the background should remain as uniform as possible. The maximum distance (x)
between the photoelectric proximity sensor and background as well as the minimum
object height (y) must be upheld.
As a rule, a WTF26 is used to detect very flat objects on a conveyor belt.
Check the application conditions: Compare distance between sensor and background,
minimal object height as well as radiance capability of background and object with the
associated diagram (see figure 2, page 8) (x = sensing range, y = minimum object
height). Remission: 6% = black 1, 90% = white 2 (referring to standard white as per DIN
5033).
Example: x = 500 mm, y = 11 mm, i.e. a white object is detected from a height of
at least 11 mm on a black background. The distance between photoelectric proximity
sensor and background is 500 mm.
Table 6: Application conditions
x
y
6%/6%
6%/90%
90%/90%
90%/6%
4
1
3
2
WTF26P-xxxxx4xx
Example:
Sensing range on black background, 6%,
x = 500 mm, y = 11 mm for white object
Background
y
x
0
5
10
15
25
20
30
100
(3.94)
200
(7.87)
300
(9.84)
400
(15.75)
600
(23.62)
500
(19.69)
0
Distance in mm (inch)
Minimum object height
in mm (y)
35
40
700
(27.56)
800
(31.50)
Figure 2: Characteristic line: WTF26
1
Black object, 6% radiance factor, in front of
black background, 6% radiance factor
2
Black object, 6% radiance factor, in front of white
background, 90% radiance factor
3
White object, 90% radiance factor, in front of
black background, 6% radiance factor
4
White object, 90% radiance factor, in front of
white background, 90% radiance factor
1
2
200
(7.87)
800
(31.50)
D
Distance in mm (inch)
A
BluePilot:
B
C
E
F
A Sensing range min. in mm
B Sensing range max. in mm
C Viewing range
D Adjustable switching thresh‐
old for foreground suppres‐
sion
E Sensing range indicator
F Teach-Turn adjustment
1
Sensing range on black, 6%
radiance factor
2
Sensing range on white, 90%
radiance factor
7.3 Sensing range setting
WTF26x-xxxxxx2xAxx with Teach-Turn adjustment:
7 COMMISSIONING
8
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Subject to change without notice
The sensing range is adjusted by pressing the teach-in button (approx. 1-3 sec.).
Depending on the requirements, the potentiometer can be used for fine-tuning (without
pressing the teach-in button).
Clockwise rotation: Sensing range increased.
Counterclockwise rotation: Sensing range reduced.
The sensing range can also be adjusted using just the potentiometer.
1.
1...3 sec.
2. The conveyor belt should now be put into operation without any objects. If the
yellow LED indicator lights up permanently during the test run, the sensing range is
set correctly.
3. If the yellow LED indicator does not light up briefly during the test run, reduce the
sensing range minimally. This increases the minimum object height accordingly.
Then check the detection with the object.
WTF26x-xxxxxx1xAxx with potentiometer:
The sensing range is adjusted with the potentiometer.
Clockwise rotation: Sensing range increased.
Counterclockwise rotation: Sensing range reduced.
COMMISSIONING 7
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9
1.
2. See from section 2 on for
WTF16x-xxxxxx2xAxx with Teach-Turn
adjustment
WTF26x-xxxxxx3xAxx with teach-in button:
The sensing range is adjusted by pressing the teach-in button (approx. 1-3 sec.).
7.4 Time function setting
1
0
T1
T2
M
T4
T3
7 COMMISSIONING
10
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t
t
t t t
t
t t t t
t t t
t
t
t t
Input signal
0
T1
T2
T3
T4
M = Manual (specific setting via IO-Link)
1 ms 30.000 ms
2
7.5 Setting light/dark switching
1
L
D
M
L light switching
D Dark switching
M manual (specific setting via IO-Link)
8 Process data structure
WTF26x-xxxxxxxxAxx:
COMMISSIONING 7
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11
A00 A70 A71 A72 A73 A75
IO-Link V1.1
Process
data
2 bytes 4 bytes
Byte 0: bits 15... 8
Byte 1: bits 7... 0
Byte 0: bits 31...
24
Byte 1: bits 13...
16
Byte 2: bits 15...
8
Byte 3: bits 7... 0
Bit 0 / Data
type
Q
L1
/ Boolean
Bit 1 / Data
type
Q
L2
/ Boolean Qint.1 /
Boolean
Q
L2
/
Boolean
Qint.1 / Boolean
Bit... /
Descrip‐
tion / Data
type
2 ...15 /
[empty]
2 ...15 /
[time mea‐
surement
value] /
UInt 14
2 … 15 /
[counter
value] /
UInt 14
2 … 15 /
[length /
speed
measure‐
ment] /
SInt14
2 /
Qint.1 /
Boolean
2 … 7 / [empty]
Bit... /
Descrip‐
tion / Data
type
3 … 15 /
[time mea‐
surement
value] /
UInt13
8 … 31 / [carrier
load] / UInt 24
9 Troubleshooting
The Troubleshooting table indicates measures to be taken if the sensor stops working.
LED indicator/fault pattern Cause Measures
Green LED flashes IO-Link communication None
Switching outputs do not
behave in accordance with
table 4
1. Change of the configuration
2. Short-circuit
1. Adjustment of the configura‐
tion
2. Check electrical connections
Light spot is aligned to the
background, no object in
beam path, yellow LED does
not light up
The sensing range distance is
too large
Reduce the sensing range
(Rotate to the left)
Light spot is aligned to the
background, object in beam
path, yellow LED lights up
Sensing range is set too low Increase the sensing range
(Increase the sensing range)
10 Disassembly and disposal
The sensor must be disposed of according to the applicable country-specific regula‐
tions. Efforts should be made during the disposal process to recycle the constituent
materials (particularly precious metals).
9 TROUBLESHOOTING
12
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Subject to change without notice
NOTE
Disposal of batteries, electric and electronic devices
•
According to international directives, batteries, accumulators and electrical or
electronic devices must not be disposed of in general waste.
•
The owner is obliged by law to return this devices at the end of their life to the
respective public collection points.
•
WEEE: This symbol on the product, its package or in this document,
indicates that a product is subject to these regulations.
11 Maintenance
SICK sensors are maintenance-free.
We recommend doing the following regularly:
•
Clean the external lens surfaces
•
Check the screw connections and plug-in connections
No modifications may be made to devices.
Subject to change without notice. Specified product properties and technical data are
not written guarantees.
12 Technical data
WTF26P-xxxxx4
Sensing range max. 0 mm ... 800 mm
1)
Light spot diameter/distance Ø 7 mm / 700 mm
Supply voltage U
B
DC 10 ... 30 V
Ripple ≤ 5 V
SS
Current consumption ≤ 30 mA
2)
< 50 mA
3)
Output current I
max.
≤ 100 mA
Max. response time 2.5 ms
4)
Switching frequency 200 Hz
5)
Enclosure rating
6)
see table 1:
x4, xH, x5, xI: IP66, IP67, IP69
7)
x9, xB: IP65
Protection class III
Circuit protection A, B, C, D
8)
MAINTENANCE 11
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Subject to change without notice
13
WTF26P-xxxxx4
Ambient operating temperature –40 °C ... +60 °C
9)
1)
Background with 6%
2)
16 VDC to 30 VDC, without load
3)
10 VDC to 16 VDC, without load
4)
Signal transit time with resistive load in switching mode. Deviating values possible in COM2 mode.
5)
With a light/dark ratio of 1:1 in switching mode. Deviating values possible in IO-Link mode.
6)
Pursuant to EN 60529
7)
Replaces IP69 K pursuant to ISO 20653: 2013-03
8)
A = U
B
-connections reverse polarity protected
B = inputs and output reverse-polarity protected
C = Interference suppression
D = outputs overcurrent and short-circuit protected
9)
Do not bend cables below 0°C.
12.1 Dimensional drawings
1
2
3
5
4
4
7.1 (0.28)
8.1 (0.32)
10.8 (0.43)
25 (0.98)
38.8 (1.53)
6.4
(0.25)
12.9
(0.51)
48.1 (1.89)
40 (1.57)
44.2 (1.74)
10
(0.39)
Ø 5.2 (0.2)
24.6 (0.97)
82.2 (3.24)
70 (2.76)
Ø 5.2 (0.2)
7.3
(0.29)
8.1 (0.32)
76.5 (3.01)
82.5 (3.25)
32.4 (1.28)
25 (0.98)
53.3 (2.1)
6
Figure 3: Dimensional drawing 1, cable
1
Preferred direction of the target
object
2
Center of optical axis, sender
3
Center of optical axis, receiver
4
Fixing hole Ø 5.2 mm
5
connection
6
Display and setting elements
M12
1
2
3
5
4
4
7.1 (0.28)
8.1 (0.32)
10.8 (0.43)
25 (0.98)
39 (1.54)
6.3 (0.25)
48.1 (1.89)
40 (1.57)
44.2 (1.74)
19.7
(0.78)
Ø 5.2 (0.2)
24.6 (0.97)
82.2 (3.24)
70 (2.76)
Ø 5.2 (0.2)
17
(0.67)
7.9 (0.31)
76.5 (3.01)
82.5 (3.25)
32.4 (1.28) 25 (0.98)
53.3 (2.1)
63.9 (2.52)
6
Figure 4: Dimensional drawing 2, male con‐
nector
12 TECHNICAL DATA
14
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Subject to change without notice
Beschriebenes Produkt
W26
WTF26
Hersteller
SICK AG
Erwin-Sick-Str. 1
79183 Waldkirch
Deutschland
Rechtliche Hinweise
Dieses Werk ist urheberrechtlich geschützt. Die dadurch begründeten Rechte bleiben
bei der Firma SICK AG. Die Vervielfältigung des Werks oder von Teilen dieses Werks
ist nur in den Grenzen der gesetzlichen Bestimmungen des Urheberrechtsgesetzes
zulässig. Jede Änderung, Kürzung oder Übersetzung des Werks ohne ausdrückliche
schriftliche Zustimmung der Firma SICK AG ist untersagt.
Die in diesem Dokument genannten Marken sind Eigentum ihrer jeweiligen Inhaber.
© SICK AG. Alle Rechte vorbehalten.
Originaldokument
Dieses Dokument ist ein Originaldokument der SICK AG.
2006/42/EC
NO
SAFETY
16
8025684.9RH / 15.01.2021 | SICK
Subject to change without notice
Inhalt
13 Zu Ihrer Sicherheit............................................................................. 18
13.1 Allgemeine Sicherheitshinweise.............................................................. 18
13.2 Hinweise zur UL Zulassung...................................................................... 18
14 Bestimmungsgemäße Verwendung............................................... 18
15 Bedien- und Anzeigeelemente........................................................ 18
16 Montage.............................................................................................. 19
17 Elektrische Installation..................................................................... 19
18 Zusatzfunktionen.............................................................................. 21
19 Inbetriebnahme................................................................................. 21
19.1 Ausrichtung............................................................................................... 21
19.2 Einsatzbedingungen prüfen..................................................................... 22
19.3 Einstellung Schaltabstand....................................................................... 22
19.4 Einstellung Zeitfunktionen....................................................................... 24
19.5 Einstellung Hell-/Dunkelschaltend.......................................................... 25
20 Prozessdatenstruktur........................................................................ 25
21 Störungsbehebung............................................................................ 26
22 Demontage und Entsorgung............................................................ 26
23 Wartung.............................................................................................. 27
24 Technische Daten.............................................................................. 27
24.1 Maßzeichnungen...................................................................................... 28
INHALT
8025684.9RH / 15.01.2021 | SICK
Subject to change without notice
17
13 Zu Ihrer Sicherheit
13.1 Allgemeine Sicherheitshinweise
■
Lesen Sie vor der Inbetriebnahme des Geräts die Betriebsanleitung.
■
Der Anschluss, die Montage und die Konfiguration des Geräts dürfen nur
von geschultem Fachpersonal vorgenommen werden.
■
2006/42/EC
NO
SAFETY
Bei diesem Gerät handelt es sich um kein sicherheitsgerichtetes Bauteil im
Sinne der EU-Maschinenrichtlinie.
■
Installieren Sie den Sensor nicht an Orten, die direkter Sonneneinstrahlung
oder sonstigen Wettereinflüssen ausgesetzt sind, ausser dies ist in der Betriebs‐
anleitung ausdrücklich erlaubt.
■
Die vorliegende Betriebsanleitung enthält Informationen, die während des Lebens‐
zyklus der Lichtschranke benötigt werden.
13.2 Hinweise zur UL Zulassung
The device shall be supplied from an isolating transformer having a secondary overcur‐
rent protective device that complies with UL 248 to be installed in the field rated either:
a) max 5 amps for voltages 0 ~ 20 V (0 ~ 28.3 V peak), or
b) 100 / Vp for voltages of 20 ~ 30 V (28.3 ~ 42.4 V peak).
Alternatively, they can be supplied from a Class 2 power supply.
UL Environmental Rating: Enclosure type 1
14 Bestimmungsgemäße Verwendung
Die WTF26 ist ein optoelektronischer Reflexions-Lichttaster (im Folgenden Sensor
genannt) und wird zum optischen, berührungslosen Erfassen von Sachen, Tieren und
Personen eingesetzt. Bei jeder anderen Verwendung und bei Veränderungen am Pro‐
dukt verfällt jeglicher Gewährleistungsanspruch gegenüber der SICK AG.
Die WTF26 ist besonders zur Detektion von flachen, glänzenden, kontrastreichen und
unebenen Objekten geeignet.
15 Bedien- und Anzeigeelemente
WTF26x-xxxxxx10
WTF26x-xxxxxx20
WTF26x-xxxxxx11
WTF26x-xxxxxx21
WTF26x-xxxxxx12
WTF26x-xxxxxx22
2
3
4
1
2
1
4
3
6
2
1
4
3
5
13 ZU IHRER SICHERHEIT
18
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Subject to change without notice
WTF26x-xxxxxx30 WTF26x-xxxxxx31 WTF26x-xxxxxx32
2
1
4
3
2
1
3
4
6
2
1
3
4
5
1
BluePilot blau: Schaltabstandsanzeige
2
Drück-Dreh-Element / Potentiometer / Teach-Taste: Einstellung des Schaltabstands
3
Anzeige-LED gelb: Status Lichtempfang
4
Anzeige-LED grün: Betriebsspannung aktiv
5
Drück-Dreh-Element: Einstellung der Zeitfunktionen
6
Teach-Taste: Einstellung hell-/dunkelschaltend
16 Montage
Den Sensor an einen geeigneten Befestigungswinkel montieren (siehe SICK-Zube‐
hör-Programm).
Maximal zulässiges Anzugsdrehmoment des Sensors von < 1,3 Nm beachten.
Vorzugsrichtung des Objektes zum Sensor beachten, vgl. siehe Abbildung 7, Seite 28.
17 Elektrische Installation
Anschluss der Sensoren muss spannungsfrei erfolgen. Je nach Anschlussart sind die
folgenden Informationen zu beachten:
– Steckeranschluss: Pinbelegung beachten
– Leitung: Adernfarbe
Erst nach Anschluss aller elektrischen Verbindungen die Spannungsversorgung anlegen
bzw. einschalten.
Erläuterungen zum Anschlussschema (folgende Tabellen):
Alarm = Alarmausgang
Health = Alarmausgang
MF (Pin-2-Konfiguration) = Externer Eingang, Teach-in, Schaltsignal
Q
L1
/C = Schaltausgang, IO-Link Kommunikation
Test = Testeingang
U
B
: 10 ... 30 V DC
Tabelle 7: Anschlüsse
Wxx26x- x1 x4 xH x5 xI
1 = BN
2 = WH
3 = BU
4 = BK
5= GY
1
4
3
1
2
4 3
0.14 mm
2
AWG26
1
2
4 3
5
0.14 mm
2
AWG26
MONTAGE 16
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Subject to change without notice
19
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