SICK WLA26 Mode d'emploi

O P E R A T I N G I N S T R U C T I O N S

WLA26

O P E R A T I N G I N S T R U C T I O N S

WLA26

de

en

es

fr

it

ja

pt

ru

zh

Described product

W26

WLA26

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.

Original document

This document is an original document of SICK AG.

2006/42/EC

NO

SAFETY

2

8020357.19RH / 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.................................................................................. 8

7.1 Alignment.................................................................................................. 8

7.2 Check the application conditions............................................................ 9

7.3 Sensing range setting............................................................................... 11

7.4 Time function setting................................................................................ 12

7.5 Setting light/dark switching..................................................................... 13

8 Process data structure..................................................................... 13

9 Troubleshooting................................................................................. 13

10 Disassembly and disposal............................................................... 14

11 Maintenance...................................................................................... 14

12 Technical data.................................................................................... 15

12.1 Dimensional drawings.............................................................................. 15

CONTENTS

8020357.19RH / 15.01.2021 | SICK

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 WLA26 is an opto-electronic photoelectric retro-reflective sensor (referred to as

“sensor” in the following) for the optical, non-contact detection of objects, animals, and

persons. A reflector is required for it to function. If the product is used for any other

purpose or modified in any way, any warranty claim against SICK AG shall become void.

3 Operating and status indicators

WLA26x-xxxxxx00 WLA26x-xxxxxx01 WLA26x-xxxxxx02

1

2

3

1

23

5

1

23

4

1 SAFETY INFORMATION

4

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Subject to change without notice

WLA26x-xxxxxx30 WLA26x-xxxxxx31 WLA26x-xxxxxx32

1

2

3

6

1

23

5

6

1

23

4

6

1

BluePilot blue: alignment aid

2

LED indicator yellow: status of received light beam

3

LED indicator green: supply voltage active

4

Press-turn element: time function adjustment

5

Teach pushbutton: adjustment of light/dark switching

6

Teach-Button: adjusting the sensitivity

4 Mounting

Mount the sensor and the reflector using suitable mounting brackets (see the SICK

range of accessories). Align the sensor and reflector with each other.

Note the sensor’s maximum permissible tightening torque of < 1,3 Nm.

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- x4 xH x5 xI

1 = BN

2 = WH

3 = BU

4 = BK

5= GY

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

Wxx26x- x9 xB

1 = BN

2 = BU

3 = not connected

4 = BK

5= WH

6 = GY

7 = not connected

3 4

1

2 5

6

I

N

= 4 A

3

7

2

1

6

5

4

I

N

= 6 A

Table 2: DC

WLA26

x-

xxX6XxxxA00 xxX6Xx

xxA01-

A99

Push-

pull

xx161 xx162 xx163 xx165 xx168 xx16A xx16L xx16N xx16x

PNP xx861 xx862 xx863 xx865 xx868 xx86A xx86L xx86N xx86x

1 = BN + (L+)

2 = WH MF

3 = BU - (M)

4 = BK Q

L1

/C

Default:

MF

Q

Alarm Alarm Test →

L+

no func‐

tion

Test →

L+

no func‐

tion

www.sic

k.com

80227

09

Default:

Q

L1

/C

Q

Q Q

Q Q www.sic

k.com

80227

09

Table 3: DC

WLA26x- xxXXXxxxZZZ

Push-pull xx111 xx112 xx114 xx116 xx421 xx422 xx721 xx722

PNP xx811 xx812 xx814 xx816 xxB21 xxB22 - -

BN + (L+)

WH Q

Q

Health Health Q

Q

BU - (M)

BK

Q

GR - - - - Test →

L+

Test →

L+

Test →

M

Test →

M

5 ELECTRICAL INSTALLATION

6

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Subject to change without notice

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)

6 Additional functions

Alarm

Alarm output: The sensor (WLA26) features a pre-failure notification output (“Alarm” in

the connection diagram [see table 2]), which issues a notification if the sensor is only

ready for operation to a limited extent. The LED flashes in this case. Possible causes:

sensor or reflector is contaminated, sensor is out of alignment. In the good state: LOW

(0), if excessively contaminated HIGH (1).

Health

Health output: The sensor (WLA26) features a pre-failure notification output (“Health”

in the connection diagram [see table 2]), which issues a notification if the sensor is

only ready for operation to a limited extent or the cable has been interrupted. Possible

causes: Sensor or reflector is contaminated, sensor is out of alignment, cable is dam‐

aged. In the good state: HIGH (1), if excessively contaminated or in the event of cable

interruption LOW (0). The yellow LED indicator flashes in this case.

ADDITIONAL FUNCTIONS 6

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7

Table 5: Alarm

Alarm (≤ 100 mA) Health (≤100 mA)

+ (L+)

Alarm

‒ (M)

+ (L+)

Health

‒ (M)

+ (L+)

Alarm

‒ (M)

+ (L+)

Health

‒ (M)

Test input

Test input: The sensors WLA26 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 reflector; 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 6

to check the function. If the switching output fails to behave in accordance with the

graphic, check the application conditions, see "Troubleshooting", page 13.

Table 6: Test

Test → M Test → L+

+ (L+)

Test

– (M)

+ (L+)

Test

– (M)

+ (L+)

Test

– (M)

+ (L+)

Test

– (M)

7 Commissioning

7.1 Alignment

Align the sensor with a suitable reflector. Select the position so that the red emitted

light beam hits the center of the reflector. The sensor must have a clear view of the

reflector, with no object in the path of the beam [see figure 1]. You must ensure that the

optical openings of the sensor and reflector are completely clear.

6 ADDITIONAL FUNCTIONS

8

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Table: Alignment

Figure 1: Alignment 1

Figure 2: Alignment 2

7.2 Check the application conditions

WLA26 are photoelectric retro-reflective sensors in which the autocollimation principle

has been combined with a multi-receiver element, thereby ensuring the greatest possi‐

ble resistance to depolarizing objects combined with a very high sensing range. This

means the WLA26 has a high operating reserve (insensitivity to dust) and does not

exhibit any switching errors with depolarizing objects.

Adjust the distance between the sensor and the reflector according to the correspond‐

ing diagram [see table 7] (x = sensing range, y = operating reserve).

NOTE TIP:

Should switching errors nevertheless arise due to extremely depolarizing objects, the

WLA26 can also be adapted to these extreme conditions and the switching errors

suppressed by means of a teach-in (via IO-Link or using the Teach-in button on the

housing).

Table 7: Application conditions

0

100

10

1

6

5

2

1

1,000

4

(13.12)

8

(26.25)

20

(65.62)

16

(52.49)

12

(39.37)

Function reserve

Distance in m (feet)

Sensing range

WLA26P-xxxxx1xx

4

3

Figure 3: Characteristic line 1: Standard

reflector

1

Reflector PL20A

2

Reflector PL22

Distance in m (feet)

Sensing range

Sensing range typ. max.

1

2

3

4

5

6

0 8

(26.25)

12

(39.37)

4

(13.12)

16

(52.49)

20

(65.62)

5.5 70

11.5 16

0

12 17

0

12 18

0

18

10

0

8 10

0

15

Figure 4: Bar graph 1: Standard reflector

1

Reflector PL20A

2

Reflector PL22

3

Reflector PL250

4

Reflector PL30A

5

Reflector PL40A

6

Reflector PL80A, C110A

COMMISSIONING 7

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9

3

Reflector PL250

4

Reflector PL30A

5

Reflector PL40A

6

Reflector PL80A, C110A

0

100

10

1

3

2

1

1,000

4

(13.12)

Function reserve

Distance in m (feet)

8

(26.25)

16

(52.49)

12

(39.37)

Sensing range

WLA26P-xxxxx1xx

Figure 5: Characteristic line 2: Reflective tape

1

Reflective tape REF-DG

2

Reflective tape REF-IRF-56

3

Reflective tape REF-AC1000

Distance in m (feet)

Sensing range Sensing range typ. max.

1

2

3

0

1.5 3

0

2.5 5

0

8 12

0

8

(26.25)

12

(39.37)

2

(6.56)

6

(19.69)

10

(32.81)

4

(13.12)

14

(45.93)

Figure 6: Bar graph 2: Reflective tape

1

Reflective tape REF-DG (50 x 50 mm)

2

Reflective tape REF-IRF-56 (50 x

50 mm)

3

Reflective tape REF-AC1000 (50 x

50 mm)

0

100

10

1

4

3

1

2

1,000

Function reserve

4

(13.12)

8

(26.25)

20

(65.62)

16

(52.49)

12

(39.37)

Distance in m (feet)

Sensing range

WLA26P-xxxxx1xx

Figure 7: Characteristic line 3: Fine triple

reflectors

1

Reflector PL10FH-1

2

Reflector PL10F

3

Reflector PL20F

4

Reflector P250F

Sensing range

1

2

3

4

0

5.5 80

4.5 6.5

0

7 10

0

10 13

0

Distance in m (feet)

Sensing range typ. max.

8

(26.25)

12

(39.37)

2

(6.56)

6

(19.69)

10

(32.81)

4

(13.12)

14

(45.93)

Figure 8: Bar graph 3: Fine triple reflectors

1

Reflector PL10FH-1

2

Reflector PL10F

3

Reflector PL20F

4

Reflector P250F

7 COMMISSIONING

10

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0

100

10

1

5

2

3

41

1,000

Function reserve

4

(13.12)

8

(26.25)

20

(65.62)

16

(52.49)

12

(39.37)

Distance in m (feet)

Sensing range

WLA26P-xxxxx1xx

Figure 9: Characteristic line 4: Chemi‐

cal-resistant reflector

1

Reflector PL10F CHEM

2

Reflector P250H

3

Reflector P250 CHEM

4

Reflector PL20 CHEM

5

Reflector PL40A Antifog

Distance in m (feet)

Sensing range

Sensing range typ. max.

1

2

3

4

5

0

0 8

(26.25)

12

(39.37)

2

(6.56)

6

(19.69)

10

(32.81)

4

(13.12)

14

(45.93)

2 30.2

7 100

6 8

0

3.5 5

0

11 14

0

Figure 10: Bar graph 4: Chemical-resistant

reflector

1

Reflector PL10F CHEM

2

Reflector P250H

3

Reflector P250 CHEM

4

Reflector PL20 CHEM

5

Reflector PL40A Antifog

7.3 Sensing range setting

WLA26x-xxxxxx3xAxx with teach-in button:

There must not be any objects located between the WLA26 and the reflector. The

sensitivity is reduced by pressing the teach-in button (approx. 1-3 sec.). This primarily

suppresses false switching to extremely depolarizing objects. The sensing range is also

reduced, and therefore the operating reserve as well. Lead an object into the path of

the beam. The yellow LED goes out, meaning the object is detected and the setting is

correct.

COMMISSIONING 7

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11

1...3 sec.

1

2

Figure 11: WLA26x-xxxxxx3xAxx, adjusting the sensing range with teach-in button

7.4

Time function setting

1

0

T1

T2

M

T4

T3

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 COMMISSIONING

12

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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

WLA26x-xxxxxxxxAxx:

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.

COMMISSIONING 7

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13

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

Not all blue LEDs light up. a) Insufficient alignment

b) Contamination of the opti‐

cal surfaces

c) Particles in the light beam

d) Distance between sensor

and reflector is too large

e) Reflector is not suitable

a) Check alignment

b) Cleaning of the optical sur‐

faces (sensor and reflector).

c) Avoid contamination in the

air as far as possible

d) Check sensing range

e) SICK reflector is recom‐

mended

Yellow LED flashes Distance between sensor

and reflector is too large /

light beam is not completely

aligned to the reflector /

reflector is not suitable / Front

screen and/or reflector is con‐

taminated.

Check sensing range / check

alignment / SICK reflector is

recommended / Cleaning of

the optical surfaces (sensor

and reflector).

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).

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.

9 TROUBLESHOOTING

14

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Subject to change without notice

12 Technical data

WLA26P

Sensing range (with reflector PL80A) 0 m ... 12 m

Light spot diameter/distance Ø 80 mm / 5 m

Supply voltage U

B

DC 10 ... 30 V

Ripple ≤ 5 V

SS

Current consumption ≤ 30 mA

1)

< 50 mA

2)

Output current I

max.

≤ 100 mA

Max. response time ≤ 500 μs

3)

Switching frequency 1000 Hz

4)

Enclosure rating

5)

see table 1:

x4, xH, x5, xI: IP66, IP67, IP69

6)

x9, xB: IP65

Protection class III

Circuit protection A, B, C, D

7)

Ambient operating temperature –40 °C ... +60 °C

8)

1)

16 VDC to 30 VDC, without load

2)

10 VDC to 16 VDC, without load

3)

Signal transit time with resistive load in switching mode. Deviating values possible in COM2 mode.

4)

With a light/dark ratio of 1:1 in switching mode. Deviating values possible in IO-Link mode.

5)

Pursuant to EN 60529

6)

Replaces IP69 K pursuant to ISO 20653: 2013-03

7)

A = U

B

-connections reverse polarity protected

B = inputs and output reverse-polarity protected

C = Interference suppression

D = outputs overcurrent and short-circuit protected

8)

Do not bend cables below 0°C.

12.1 Dimensional drawings

3

2

1

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)

55.6 (2.19)

53.3 (2.1)

4

Figure 12: Dimensional drawing 1, cable

1

Center of optical axis

2

Fixing hole Ø 5.2 mm

3

Connection

4

Display and setting elements

M12

1

3

2

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)

55.6 (2.19)

53.3 (2.1)

63.9 (2.52)

4

Figure 13: Dimensional drawing 2, male

connector

TECHNICAL DATA 12

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Subject to change without notice

15

B E T R I E B S A N L E I T U N G

WLA26

de

en

es

fr

it

ja

pt

ru

zh

Beschriebenes Produkt

W26

WLA26

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.

Originaldokument

Dieses Dokument ist ein Originaldokument der SICK AG.

2006/42/EC

NO

SAFETY

8020357.19RH / 15.01.2021 | SICK

Subject to change without notice

17

Inhalt

13 Zu Ihrer Sicherheit............................................................................. 19

13.1 Allgemeine Sicherheitshinweise.............................................................. 19

13.2 Hinweise zur UL Zulassung...................................................................... 19

14 Bestimmungsgemäße Verwendung............................................... 19

15 Bedien- und Anzeigeelemente........................................................ 19

16 Montage.............................................................................................. 20

17 Elektrische Installation..................................................................... 20

18 Zusatzfunktionen.............................................................................. 22

19 Inbetriebnahme................................................................................. 23

19.1 Ausrichtung............................................................................................... 23

19.2 Einsatzbedingungen prüfen..................................................................... 24

19.3 Einstellung Schaltabstand....................................................................... 26

19.4 Einstellung Zeitfunktionen....................................................................... 27

19.5 Einstellung Hell-/Dunkelschaltend.......................................................... 28

20 Prozessdatenstruktur........................................................................ 28

21 Störungsbehebung............................................................................ 28

22 Demontage und Entsorgung............................................................ 29

23 Wartung.............................................................................................. 29

24 Technische Daten.............................................................................. 30

24.1 Maßzeichnungen...................................................................................... 30

INHALT

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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 WLA26 ist eine optoelektronische Reflexions-Lichtschranke (im Folgenden Sensor

genannt) und wird zum optischen, berührungslosen Erfassen von Sachen, Tieren und

Personen eingesetzt. Zur Funktion wird ein Reflektor benötigt. Bei jeder anderen

Verwendung und bei Veränderungen am Produkt verfällt jeglicher Gewährleistungsan‐

spruch gegenüber der SICK AG.

15 Bedien- und Anzeigeelemente

WLA26x-xxxxxx00 WLA26x-xxxxxx01 WLA26x-xxxxxx02

1

2

3

1

23

5

1

23

4

ZU IHRER SICHERHEIT 13

8020357.19RH / 15.01.2021 | SICK

Subject to change without notice

19

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SICK WLA26 Mode d'emploi

SICK WLA26 Mode d'emploi

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