SICK WS/WE34 Operating instructions

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

WS/WE34

Compact photoelectric sensors

en, de, fr, pt, it, es, zh, ja, ru

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Described product

W34

WS/WE34

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 modifica‐

tion, abridgment or translation of this document is prohibited without the express writ‐

ten 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

8009200.11O1 | SICK

Subject to change without notice

3

Contents

1 General safety notes......................................................................... 5

1.1 Safety notes.............................................................................................. 5

2 Notes on UL approval........................................................................ 5

3 Correct use......................................................................................... 5

4 Operating elements and status indicators.................................... 5

5 Mounting............................................................................................. 6

6 Electrical installation........................................................................ 6

6.1 WS/WE34-Bxxx, WS/WE34-Vxxx............................................................. 7

6.2 WS/WE34-Rxxx......................................................................................... 8

7 Additional functions.......................................................................... 9

8 Commissioning.................................................................................. 10

9 Devices with special features.......................................................... 12

10 Troubleshooting................................................................................. 12

11 Disassembly and disposal............................................................... 13

12 Maintenance...................................................................................... 13

13 Technical data.................................................................................... 13

13.1 Dimensional drawing................................................................................ 15

CONTENTS

4

8009200.11O1 | SICK

Subject to change without notice

1 General safety notes

1.1 Safety notes

■

Read the operating instructions before commissioning.

■

Connection, mounting, and setting may only be performed by skilled per‐

son.

■

2006/42/EC

NO

SAFETY

Not a safety component in accordance with the EU Machinery Directive.

■

When commissioning, protect the device from moisture and contamination.

■

These operating instructions contain information required during the life cycle of

the sensor.

2 Notes on UL approval

The device must be supplied by a Class 2 source of supply.

UL Environmental Rating: Enclosure type 1

3 Correct use

The WS/WE34 is an opto-electronic through-beam photoelectric sensor (referred to as

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

persons. A sender (WS) and a receiver (WE) are required for operation. If the product is

used for any other purpose or modified in any way, any warranty claim against SICK AG

shall become void.

4 Operating elements and status indicators

Table 1: Display and operating elements

WE34-Bx4x

t

2

t

2

t

1

t

1

t

1

+ t

2

t

0

PNP

NPN

D

H

1

2

3

6

4

5

7

1

Yellow LED indicator

2

Potentiometer: sensi‐

tivity adjustment

WE34-Xx3x

PNP

NPN

D

H

1

2

3

4

1

Yellow LED indicator

2

Potentiometer: sensi‐

tivity adjustment

WE34-Rx4x

t

2

t

2

t

1

t

1

t

1

+ t

2

t

0

D

H

1

2

3

5

4

6

1

Yellow LED indicator

2

Potentiometer: sensi‐

tivity adjustment

WE34-Rx3x

D

H

1

2

3

1

Yellow LED indicator

2

Potentiometer: sensi‐

tivity adjustment

GENERAL SAFETY NOTES 1

8009200.11O1 | SICK

Subject to change without notice

5

3

Switch: light (L) / dark

(D)

4

Switch: NPN / PNP

5

Potentiometer: adjust‐

ment of time delay t

2

6

Potentiometer: adjust‐

ment of time delay t

1

7

Potentiometer: adjust‐

ment of time stage

3

Switch: light (L) / dark

(D)

4

Switch: NPN / PNP

3

Switch: light (L) / dark

(D)

4

Potentiometer: adjust‐

ment of time delay t

2

5

Potentiometer: adjust‐

ment of time delay t

1

6

Potentiometer: adjust‐

ment of time stage

3

Switch: light (L) / dark

(D)

5 Mounting

Mount sensors (sender and receiver) using suitable mounting brackets (see the SICK

range of accessories). Align the sender and receiver with each other.

NOTE

Swap the sender and receiver arrangement at every second through-beam photoelec‐

tric sensor and ensure that there is sufficient distance between the through-beam pho‐

toelectric sensors.

Receiver (WE)

Sender (WS)

Receiver (WE)

Figure 1: Arrangement of several through-beam photoelectric sensors

Note the sensor’s maximum permissible tightening torque of 2 Nm.

6 Electrical installation

The sensors must be connected in a voltage-free state. The following information must

be observed, depending on the connection type:

– Plug connection: note pin assignment: when the cover is open, the male connector

can be swiveled horizontally and vertically.

– Terminal connection: note the permissible cable diameter of 5 to 10 mm. When

the cover is open, the M16 fitting can be swiveled horizontally and vertically.

Unscrew the M16 fitting and remove sealing plug. Lead voltage-free supply cable

through and connect sensor in accordance with table 2 and table 5. Retighten

M16 fitting with seal so that the IP enclosure rating of the device is ensured.

5 MOUNTING

6

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Subject to change without notice

Figure 2: Opening the sensor Figure 3: Electrical connection

Only apply voltage/switch on the power supply once all electrical connections have

been established.

Explanations of the connection diagram (tables, chapter 6.1 and see "WS/WE34-Rxxx",

page 8):

Alarm = alarm output (see table 3 and Additional functions)

n. c. = not connected

NC = normally closed

NO = normally open

Q / Q = switching outputs

TE / Test = test input (see table 2 and Additional functions)

6.1

WS/WE34-Bxxx, WS/WE34-Vxxx

U

B

: 10 ... 30 V DC, see "Technical data", page 13

Table 2: DC, WS

WS34- D3x3 D2x0 D4x0 D5x0

1 + (L+) + (L+) + (L+) + (L+)

2 - (M) - (M) Test Test

3 Test - - (M) - (M)

4 - - n.c. n.c.

5 - Test - n.c.

I

N

= 4 A

1 2 3 4 5

0.14 ... 1.5 mm

2

I

N

= 4 A

1

2

4 3

1

2

5

4 3

ELECTRICAL INSTALLATION 6

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7

Table 3: DC, WE

WE34- B3x3 B2x0 B4x0 V5x0

1 + (L+) + (L+) + (L+) + (L+)

2 - (M) - (M) n.c. n.c.

3

Q/Q

- - (M) - (M)

4 -

Q/Q Q/Q Q/Q

5 - - - Alarm

I

N

= 4 A

1 2 3 4 5

0.14 ... 1.5 mm

2

I

N

= 4 A

1

2

4 3

1

2

5

4 3

Table 4: DC

H

D

3

NPN

PNP

4

H, PNP: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

D, PNP: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

H, NPN: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

D, NPN: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

6.2 WS/WE34-Rxxx

U

B

20 V ... 250 V AC/DC, see "Technical data", page 13

6 ELECTRICAL INSTALLATION

8

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Table 5: AC/DC

WS34-U2x0 WE34-R2x0

1 L1 / + L1 / +

2 N / - N / -

3 - Relay

4 - Relay

5 - Relay

1 2 3 4 5

0.14 ... 1.5 mm

2

I

N

= 4 A

1 2 3 4 5

0.14 ... 1.5 mm

2

I

N

= 4 A

Table 6: AC/DC relay

Relay

H

D

3

WE34-R2x0

H

3

4

5

3

4

5

I

max.

= 4 A@250 V AC

4 A@24 V DC

0.125 A@250 V DC

UL: 4A @ 250 V AC, general

use

4A @ 250 V AC, resistive

(NO)

3A @ 250 V AC, resistive

(NC)

4A @ 24 V DC, NO, general

use

3A @ 24 V DC, NC, general

use

R300

B300 (NO contacts only)

D

3

4

5

3

4

5

7 Additional functions

Alarm

Alarm output: the sensor (WE34-Vxxx) features a pre-failure notification output (“Alarm”

in connection diagram [see "WS/WE34-Bxxx, WS/WE34-Vxxx", page 7]), which issues a

notification if the sensor is only ready for operation to a limited extent. Possible causes:

sensor is contaminated, sensor is out of alignment. PNP: Alarm → M signal reserve

> 50% LOW, NPN: Alarm → L+ signal reserve > 50% HIGH. The LED indicator flashes in

this case.

ADDITIONAL FUNCTIONS 7

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9

Table 7: Alarm

Alarm (≤ 100 mA)

+ (L+)

Alarm

– (M)

+ (L+)

Alarm

– (M)

Test input

Test input: the WS34-B / -V sensors feature a test input (“TI” or “Test” on the connec‐

tion diagram [see "WS/WE34-Bxxx, WS/WE34-Vxxx", page 7 and see table 8]), which

can be used to switch the sender off and, therefore, check that the sensor is function‐

ing correctly: if female cable connectors with LED indicators are used, you have to

ensure that the TI is assigned accordingly.

There must be no object between the sender and receiver; activate the test input (see

the connection diagram [see "WS/WE34-Bxxx, WS/WE34-Vxxx", page 7 and see

table 8], TE at 0 V). The send LED is shut down or the detection of an object is simu‐

lated. Use the following table to check the function. If the switching output fails to

behave in accordance with the following table, check the application conditions. See

section Fault diagnosis.

Table 8: Test

Test

+ (L+)

Test

– (M)

+ (L+)

Test

– (M)

8 Commissioning

1 Alignment

Align the sender with the receiver. Select the position so that the red emitted light beam

hits the receiver. Tip: Use white paper or a reflector as an alignment aid. The sender must

have a clear view of the receiver, with no object in the path of the beam [see figure 4]. You

must ensure that the optical openings (front screen) of the sensors are completely clear.

7 ADDITIONAL FUNCTIONS

10

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Figure 4: Alignment

2 Sensing range

Note application conditions: Adjust distance between sender and receiver with the associ‐

ated diagram [see figure 5] (x = sensing range, y = operating reserve).

If several through-beam photoelectric sensors which are installed next to one another are

to be used, we recommend swapping the sender/receiver arrangement at every second

through-beam photoelectric sensor and ensuring that there is sufficient distance between

the through-beam photoelectric sensors. By doing this, mutual interference can be pre‐

vented [see figure 1].

100

10

1

sensing range

typ. max. sensing range

m 10 20 30 40 50 60

Figure 5: Characteristics

0 10

(32.81)

20

(65.62)

30

(98.43)

40

(131.23)

50

(164.04)

60

(196.85)

Distance in m (feet)

Sensing range

Sensing range max.

50 600

Figure 6: Bar graph

3 Sensitivity setting

Sensor with potentiometer: open the sensor cover and protective hood, make sure that no

dirt has gotten into the device.

The sensitivity is adjusted with the potentiometer (type: without stop). Clockwise rotation:

operating reserve increased; counterclockwise rotation: operating reserve reduced. We rec‐

ommend setting the potentiometer to “Maximum”.

The sensor is adjusted and ready for operation.

4 Time function setting

WS/WE34xx4x: no time delay, t1 = time delay, t2 = time delay; for -R: 0 = relay deactivated,

1 = relay active. Time delay selector switch can be set on the device according to the fol‐

lowing graphic.

Time stages: 0.5 ... 10 s can be adjusted.

COMMISSIONING 8

8009200.11O1 | SICK

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11

0

1 2

+

0.5 ... 10 sec.

Figure 7: Time functions

9 Devices with special features

WS/WE34-B43S01: preset to dark switching

10 Troubleshooting

The Troubleshooting table indicates measures to be taken if the sensor stops working.

Table 9: Troubleshooting

LED indicator/fault pattern Cause Measures

Yellow LED does not light up

even though the light beam is

aligned to the receiver and

there is no object in the path of

the beam

No voltage or voltage below

the limit values

Check the power supply,

check all electrical connec‐

tions (cables and plug connec‐

tions)

Voltage interruptions Ensure there is a stable power

supply without interruptions

Sensor is faulty If the power supply is OK,

replace the sensor

No object in beam path, no out‐

put signal

Test input (Test) is not con‐

nected properly

Check connection of the test

input. When using female

cable connectors with LED

indicators, make sure the test

input is assigned correspond‐

ingly.

Yellow LED flashes; if Alarm is

present then take note of the

corresponding output signal

Sensor is still ready for opera‐

tion, but the operating condi‐

tions are not ideal

Check operating conditions:

align light beam (light stop)

completely on the receiver/

cleaning of optical surfaces /if

potentiometer is set to max.

sensitivity: reduce distance

between sender and

receiver /Check sensing range

and adjust if necessary.

9 DEVICES WITH SPECIAL FEATURES

12

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Subject to change without notice

LED indicator/fault pattern Cause Measures

Yellow LED lights up, no object

in the path of the beam

The beam of light of a photo‐

electric through-beam sensor

hits the receiver of another

(neighboring) photoelectric

through-beam sensor

Swap the sender and receiver

arrangement at every sec‐

ond through-beam photoelec‐

tric sensor and ensure that

there is sufficient distance

between the through-beam

photoelectric sensors.

11 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.

•

This symbol on the product, its package or in this document, indicates

that a product is subject to these regulations.

12 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.

13 Technical data

Table 10: Technical data

WS/WE34-B / -V -R

Sensing range 0 ... 50 m 0 ... 50 m

Sensing range max. 0 ... 60 m 0 ... 60 m

Light spot diameter/distance Ø 700 mm (50

m)

Ø 700 mm (50

m)

Supply voltage U

B

DC 10 ... 30 V AC / DC 20 ...

250 V

1)

Output current I

max.

100 mA

DISASSEMBLY AND DISPOSAL 11

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13

WS/WE34-B / -V -R

Switching current (switching voltage) I

max.

4 A @ 250 V AC,

4 A @ 24 V DC,

0.125 A @ 250 V

DC

2)

Switching frequency 1000 Hz

3)

10 Hz

3)

Max. response time ≤ 500 µs

4)

≤ 10 ms

4)

Enclosure rating

5)

-B2x0, -B3x3, -

D2x0, -D3x3:

IP67

-B4x0, -V5x0, -

D4x0, -D5x0:

IP69

6)

-R2x0, -U2x0:

IP67

Protection class II

7)

II

7)

Circuit protection A, B, C

8)

A, C

8)

Ambient operating temperature –40 °C ...

+60 °C

–40 °C ...

+60 °C

1)

Limit values; terminal connection: permissible wire cross-sections 0.14 to 1.5 mm

2

, male connector:

≤ 4 A

2)

Usage category: AC-15, DC-13 (EN 60947-1)

3)

With light / dark ratio 1:1

4)

Signal transit time with resistive load

5)

Pursuant to EN 60529

6)

Replaces IP69 K pursuant to ISO 20653: 2013-03

7)

Rated insulation voltage U

i

250 V, overvoltage category II

8)

A = U

B

-connections reverse polarity protected

B = inputs and output reverse-polarity protected

C = Interference suppression

13 TECHNICAL DATA

14

8009200.11O1 | SICK

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13.1 Dimensional drawing

14,4

(0.57)

5

4

5

14

(0.55)

6.5

(0.26)

10.5

(0.41)

14

(0.55)

15.5

(0.61)

70 (2.76)

M5

6.2

(0.24)

30 (1.18)

92 (3.62)

5

(0.20)

48 (1.89)

max. 32

(1.26)

27

(1.06)

1

2

3

Figure 8: Dimensional drawing

1

Alignment sight

2

LED indicator yellow

3

Center of optical axis

4

Mounting hole ø 5.5 mm, both sides for hexagon nut M5

5

M16 fitting or male connector can be rotated by 90°

TECHNICAL DATA 13

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15

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Tabelle 15: AC/DC

WS34-U2x0 WE34-R2x0

1 L1 / + L1 / +

2 N / - N / -

3 - Relais

4 - Relais

5 - Relais

1 2 3 4 5

0.14 ... 1.5 mm

2

I

N

= 4 A

1 2 3 4 5

0.14 ... 1.5 mm

2

I

N

= 4 A

Tabelle 16: AC/DC Relais

Relais

H

D

3

WE34-R2x0

H

3

4

5

3

4

5

I

max.

= 4A@250V AC

4A@24V DC

0.125A@250 V DC

UL: 4A @ 250 V AC, general

use

4A @ 250 V AC, resistive

(NO)

3A @ 250 V AC, resistive

(NC)

4A @ 24 V DC, NO, general

use

3A @ 24 V DC, NC, general

use

R300

B300 (NO contacts only)

D

3

4

5

3

4

5

20 Zusatzfunktionen

Alarm

Alarmausgang: Der Sensor (WE34-Vxxx) verfügt über einen Vorausfallmeldeausgang

("Alarm" im Anschlussschema [siehe "WS/WE34-Bxxx, WS/WE34-Vxxx", Seite 21]) der

meldet, wenn der Sensor nur noch eingeschränkt betriebsbereit ist. Mögliche Ursa‐

chen: Verschmutzung des Sensors, Sensor ist dejustiert. PNP: Alarm → M Signalre‐

serve > 50% LOW, NPN: Alarm → L+ Signalreserve > 50% HIGH. Dabei blinkt die

Anzeige-LED.

ZUSATZFUNKTIONEN 20

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23

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Tableau 24: CC

H

D

3

NPN

PNP

4

H, PNP : Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

D, PNP : Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

H, NPN : Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

D, NPN : Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

32.2 WS/WE34-Rxxx

U

B

20 V ... 250 V CA/CC, voir "Caractéristiques techniques", page 42

Tableau 25: CA/CC

WS34-U2x0 WE34-R2x0

1 L1 / + L1 / +

2 N / - N / -

3 - Relais

4 - Relais

5 - Relais

1 2 3 4 5

0,14 ... 1,5 mm

2

I

N

= 4 A

1 2 3 4 5

0,14 ... 1,5 mm

2

I

N

= 4 A

INSTALLATION ÉLECTRIQUE 32

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37

Tableau 26: CA/CC relais

Relais

H

D

3

WE34-R2x0

H

3

4

5

3

4

5

I

max.

= 4 A@250 V CA

4 A@24 V CC

0.125 A@250 V CC

UL: 4A @ 250 V AC, general

use

4A @ 250 V AC, resistive

(NO)

3A @ 250 V AC, resistive

(NC)

4A @ 24 V DC, NO, general

use

3A @ 24 V DC, NC, general

use

R300

B300 (NO contacts only)

D

3

4

5

3

4

5

33 Fonctions supplémentaires

Alarme

Sortie alarme : le capteur (WE34-Vxxx) est équipé d’une sortie de signalisation avant

panne (« Alarme » dans le schéma de raccordement [voir "WS/WE34-Bxxx, WS/WE34-

Vxxx", page 36]) qui indique si le fonctionnement du capteur est limité. Causes pos‐

sibles : encrassement du capteur, capteur déréglé. PNP : alarme → M réserve de

signaux > 50 % LOW, NPN : alarme → L+ réserve de signaux > 50 % HIGH. La LED cli‐

gnote.

Tableau 27: Alarme

Alarme (≤ 100 mA)

+ (L+)

Alarm

– (M)

+ (L+)

Alarm

– (M)

33 FONCTIONS SUPPLÉMENTAIRES

38

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39.1 Plan coté

14,4

(0.57)

5

4

5

14

(0.55)

6.5

(0.26)

10.5

(0.41)

14

(0.55)

15.5

(0.61)

70 (2.76)

M5

6.2

(0.24)

30 (1.18)

92 (3.62)

5

(0.20)

48 (1.89)

max. 32

(1.26)

27

(1.06)

1

2

3

Illustration 24: Plan coté

1

Rainure d'alignement

2

LED d’état jaune

3

Centre de l’axe optique

4

Trou traversant ø 5,5 mm, des deux côtés pour écrou à six pans M5

5

Presse étoupe M16 ou connecteur mâle orientable de 90°

39 CARACTÉRISTIQUES TECHNIQUES

44

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M A N U A L D E I N S T R U Ç Õ E S

WS/WE34

Barreiras de luz compactas

en, de, fr, pt, it, es, zh, ja, ru

de

en

es

fr

it

ja

pt

ru

zh

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Tabela 33: CC, WE

WE34- B3x3 B2x0 B4x0 V5x0

1 + (L+) + (L+) + (L+) + (L+)

2 - (M) - (M) n.c. n.c.

3

Q/Q

- - (M) - (M)

4 -

Q/Q Q/Q Q/Q

5 - - - Alarme

I

N

= 4 A

1 2 3 4 5

0,14 ... 1,5 mm

2

I

N

= 4 A

1

2

4 3

1

2

5

4 3

Tabela 34: CC

H

D

3

NPN

PNP

4

H, PNP: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

D, PNP: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

H, NPN: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

D, NPN: Q/Q (≤ 100 mA)

+ (L+)

Q/Q

– (M)

+ (L+)

Q/Q

– (M)

45.2 WS/WE34-Rxxx

U

B

20 V ... 250 V CA/CC, ver "Dados técnicos", página 56

INSTALAÇÃO ELÉTRICA 45

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51

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