SICK WS24-2 Series Manuale utente

OPERATING INSTRUCTIONS

WS/WE24-2

Compact photoelectric sensors

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

OPERATING INSTRUCTIONS

WS/WE24-2

Compact photoelectric sensors

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

Described product

W24-2

WS/WE24-2

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

SAFETY

8008782.14BT | 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/WE24-2Bxxx, WS/WE24-2Vxxx......................................................... 7

6.2 WS/WE24-2Rxxx....................................................................................... 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

48008782.14BT | 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

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 WSE24-2 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

WE-2Bx4x

t1+ t2

PNP

NPN

1Yellow LED indicator

2Potentiometer: adjust‐

ment of sensitivity

WE24-2Xx3x

PNP

NPN

1Yellow LED indicator

2Potentiometer: adjust‐

ment of sensitivity

WE-2Rx4x

t1+ t2

1Yellow LED indicator

2Potentiometer: adjust‐

ment of sensitivity

WE-2Rx3x

1Yellow LED indicator

2Potentiometer: adjust‐

ment of sensitivity

GENERAL SAFETY NOTES 1

8008782.14BT | SICK

Subject to change without notice 5

3Switch: light (L) / dark

(D)

4Switch: NPN/PNP

5Potentiometer: adjust‐

ment of time delay t2

6Potentiometer: adjust‐

ment of time delay t1

7Potentiometer: adjust‐

ment of time stage

3Switch: light (L) / dark

(D)

4Switch: NPN/PNP

3Switch: light (L) / dark

(D)

4Potentiometer: adjust‐

ment of time delay t2

5Potentiometer: adjust‐

ment of time delay t1

6Potentiometer: adjust‐

ment of time stage

3Switch: 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 lid 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 lid is open, the M16 connector can be swiveled horizontally and vertically.

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

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

Retighten M16 connector with seal so that the IP enclosure rating of the device is

ensured.

5 MOUNTING

68008782.14BT | SICK

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.

Explanation of the connection diagram (Tables 2-8) which are divided up into DC and

AC/DC devices:

Alarm = alarm output (see table 2 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 table 8)

6.1 WS/WE24-2Bxxx, WS/WE24-2Vxxx

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

Table 2: DC, WS

WS24-2 D3x3 D2x0 D4x0 D5x0

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

2- (M) - (M) Test Test

3Test - - (M) - (M)

4- - n.c. n.c.

5- Test - n.c.

IN = 4 A

1 2 3 4 5

0.14 ... 1.5 mm2

IN = 4 A

4 3

ELECTRICAL INSTALLATION 6

8008782.14BT | SICK

Subject to change without notice 7

Table 3: DC, WE

WE24-2 B3x3 B2x0 B4x0 V5x0

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

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

3Q/Q- - (M) - (M)

4-Q/QQ/QQ/Q

5- - - Alarm

IN = 4 A

1 2 3 4 5

0.14 ... 1.5 mm2

IN = 4 A

4 3

Table 4: DC

NPN

PNP

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/WE24-2Rxxx

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

6 ELECTRICAL INSTALLATION

88008782.14BT | SICK

Subject to change without notice

Table 5: AC/DC

WS24-2U2x0 WE24-2R2x0

1L1 / + L1 / +

2N / - N / -

3- Relay

4- Relay

5- Relay

1 2 3 4 5

0.14 ... 1.5 mm2

IN = 4 A

1 2 3 4 5

0.14 ... 1.5 mm2

IN = 4 A

Table 6: AC/DC relay

Relay

3WE24-2R2x0

Imax. = 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)

WE24-2R5x8, WE24-2R5x9: Imax. = 2.5 A @ 250 V AC, 2.5 A @ 24 V DC, 0.125 A @250

VDC

7Additional functions

Alarm

Alarm output: the sensor (WE24-2Vxxx) features a pre-failure notification output

(“Alarm” in connection diagram [see "WS/WE24-2Bxxx, WS/WE24-2Vxxx", page 7]),

which issues a notification if the sensor is only ready for operation to a limited extent.

ADDITIONAL FUNCTIONS 7

8008782.14BT | SICK

Subject to change without notice 9

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 indi‐

cator flashes in this case.

Table 7: Alarm

Alarm (≤ 100 mA)

+ (L+)

Alarm

– (M)

+ (L+)

Alarm

– (M)

Test input

Test input: the WS24-2B / -V sensors feature a test input (“TI” or “Test” on the connec‐

tion diagram [see "WS/WE24-2Bxxx, WS/WE24-2Vxxx", 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/WE24-2Bxxx, WS/WE24-2Vxxx", 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

1Alignment

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 8008782.14BT | SICK

Subject to change without notice

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