SICK WTB4F Manual de usuario

OPERATING INSTRUCTIONS

WTB4F

Miniature photoelectric sensors

OPERATING INSTRUCTIONS

WTB4F

Miniature photoelectric sensors

Described product

W4F

WTB4F

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

SAFETY

8025299.1BBX / 2021-05-12 | SICK

Subject to change without notice 3

Contents

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

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

3 Product description........................................................................... 5

3.1 Intended use............................................................................................. 5

3.2 Operating elements and status indicators.............................................. 5

4 Mounting............................................................................................. 6

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

6 Commissioning.................................................................................. 8

6.1 Alignment.................................................................................................. 8

6.2 Check the application conditions:........................................................... 9

6.3 Setting....................................................................................................... 10

6.4 Process data structure............................................................................. 12

7 Troubleshooting................................................................................. 12

8 Disassembly and disposal............................................................... 13

9 Maintenance...................................................................................... 13

10 Technical specifications................................................................... 13

10.1 Dimensional drawings.............................................................................. 14

CONTENTS

48025299.1BBX / 2021-05-12 | SICK

Subject to change without notice

1 General safety notes

■Read the operating instructions before commissioning.

■

Connection, mounting, and configuration may only be performed by trained

specialists.

■

2006/42/EC

SAFETY

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

■

Do not install the sensor at locations that are exposed to direct UV radiation

(sunlight) or other weather influences, unless this is expressly permitted in the

operating instructions.

■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 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

3 Product description

3.1 Intended use

The WTB4F is an opto-electronic photoelectric background suppression proximity sen‐

sor (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.

3.2 Operating elements and status indicators

Photoelectric proximity sensor with background suppression.

Table 1: Operating elements and status indicators

WTB4

Fx-

xxxxxx20Axx xxxxxx30Zxx xxxxxx10Zxx xxxxxxA0Zxx

Teach-Turn adjust‐

ment

Teach-in button Potentiometer Preset default - no

possibility of setting

GENERAL SAFETY NOTES 1

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Subject to change without notice 5

1BluePilot blue: sensing range display

2Press-turn element / Potentiometer / Teach-Button: adjusting the sensing range

3LED indicator yellow: status of received light beam

4LED indicator green: supply voltage active

4 Mounting

Mount the sensor using a suitable mounting bracket (see the SICK range of accesso‐

ries).

Figure 1: Alignment of the sensor relative to the object direction

Note the sensor’s maximum permissible tightening torque of < 0,4 Nm.

Note the preferred direction of the object relative to the sensor, cf. see figure 1, page 6.

5 Electrical installation

Operation in standard I/O mode:

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

be observed, depending on the connection type:

– Male connector connection: Pin assignment

– Cable: Wire color

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

been established.

Operation in IO-Link mode: Connect the device to a suitable IO-Link master and inte‐

grate in the master or control via IODD/function block. The green LED flashes on the

sensor. IODD and function block are available to download from www.sick.com under

the part number.

Explanations on connection diagram.

BN = brown

WH = white

BU = blue

BK = black

MF (pin 2 configuration) = external input, teach-in, switching signal

QL1/C = switching output, IO-Link communication

Test = Test input

4 MOUNTING

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UB: 10 ... 30 V DC

Table 2: Electrical connection

WTB4Fx- x4 x2 xH x1 -xG

1 = BN

2 = WH

3 = BU

4 = BK

4 3

0.14 mm2

AWG26

0.14 mm2

AWG26

Table 3: DC

WTx4Fx-

Push-pull xx161xxxA00 xx162xxxA00 xx16AxxxA00 xx16NxxxA00 xx16xxxxA01-

A99

PNP xx861xxxA00 xx862xxxA00 xx86AxxxA00 xx86NxxxA00 xx86xxxxA01-

A99

1 = BN + (L+)

2 = WH MF

3 = BU - (M)

4 = BK QL1/C

Default: MF QQ no function no function www.sick.com

8022709

Default:

QL1/C

QQQQwww.sick.com

8022709

Table 4: DC

WTx4Fx- xx112xx0Zxx xx111xx0Zxx xx312xx0Zxx xx311xx0Zxx

1 = BN + (L+)

2 = WH QQ no function

3 = BU - (M)

4 = BK QQQQ

Table 5: DC

WTx4Fx- xx311xx0Zxx xx312xx0Zxx

1 = BN + (L+)

3 = BU - (M)

4 = BK QQ

ELECTRICAL INSTALLATION 5

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Subject to change without notice 7

Table 6: 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 Commissioning

6.1 Alignment

Align the sensor with the object. Select the position so that the red emitted light beam

hits the center of the object. You must ensure that the optical opening (front screen) of

the sensor is completely clear [see figure 2].

Align the sensor with a fixed background. You must ensure that the optical opening

(front screen) of the sensor is completely clear [see figure 2].

Figure 2: Alignment

6 COMMISSIONING

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Subject to change without notice

Figure 3: Alignment

6.2 Check the application conditions:

Sensing range

WTB4F are photoelectric proximity sensors with background suppression. Depending

on the remission of the object to be detected, and perhaps the background behind it,

a minimum distance (y) between the set sensing range (x) and the background is to be

maintained.

Check the application conditions:

Adjust the sensing range and distance to the object or background as well as the

remission capability of the object according to the corresponding diagram (x = sensing

range, y = minimum distance between set sensing range and background (white, 90%))

Remission: 6% = black 1, 18% = gray 2, 90% = white 3 (relative to standard white as

per DIN 5033). We recommend that the adjustment be performed with an object of low

remission.

The minimum distance (= y) for the background suppression can be determined from

the figure figure 4 as follows:

Example: x = 100 mm, y = 4 mm. That is, the background (white, 90%) is suppressed at

a distance of > 4 mm from the sensor.

NOTE

Observe the minimum distance of 5 mm.

WTB4FP-xxxx1xxA00

(0.79)

(0.39)

(1.57)

(1.18)

(1.97)

(3.15)

(1.57)

120

(4.72)

160

(6.30)

200

(7.87)

240

(9.45)

Minimum distance in mm (y) between the set sensing

range and white background (90 % remission)

Example:

Safe suppression of the background

White background (90 %)

Black object (6 % remission)

Set sensing range x = 120 mm

Needed minimum distance to white

background y = 7 mm

Distance in mm (inch)

Recommended sensing range for

the best performance

(2.36)

90%/90%

18%/90%

6%/90%

Figure 4: Characteristic line

6515

59515

515

415

398

100

Distance in mm (inch)

A B

BluePilot

(3.15)

(0.79)

(1.57)

(2.36)

100

(3.94)

Figure 5: bar graph

COMMISSIONING 6

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Subject to change without notice 9

Distance in mm (inch)

Dimensions in mm (inch)

(0.16)

(0.24)

–6

(–0.24)

–4

(–0.16)

(0.08)

–2

(–0.08)

(0.39)

220

(8.66)

(3.15)

(1.57)

120

(4.72)

160

(6.30)

200

(7.87)

240

(9.45)

130

(5.12)

Recommended sensing range for

the best performance

Figure 6: Light spot size

WTB4FP-xxxx2xxA00:

(1.57)

(0.79)

(2.36)

(3.15)

100

(3.94)

WTB4FP

Minimum distance in mm (y) between the set sensing

range and white background (90 % remission)

Example:

Safe suppression of the background

White background (90 %)

Black object (6 % remission)

Set sensing range x = 40 mm

Needed minimum distance to white

background y = 2 mm

Distance in mm (inch)

Recommended sensing range for

the best performance

(0.79)

(0.63)

90%/90%

(0.47)

(0.31)

(0.16)

6%/90%

1%/90%

18%/90%

Figure 7: Characteristic line

6515

59515

515

415

398

100

Distance in mm (inch)

A B

BluePilot

(3.15)

(0.79)

(1.57)

(2.36)

100

(3.94)

Figure 8: bar graph

Distance in mm (inch)

Dimensions in mm (inch)

(0.16)

(0.24)

–6

(–0.24)

–4

(–0.16)

(0.08)

–2

(–0.08)

(0.39)

100

(3.94)

(0.79)

(1.57)

(2.36)

(3.15)

100

(3.94)

(1.97)

Recommended sensing range for

the best performance

Figure 9: Light spot size

ASensing range min. in mm

BSensing range max. in mm

CViewing range

DSetting range switching threshold for background suppression

ESensing range indicator

FTeach-Turn adjustment

blue Recommended sensing range for the best performance

6.3 Setting

Sensing range adjustment

WTB4F-xxxxxx1xAxx

Adjustment via a potentiometer:

Clockwise rotation: Sensing range increased.

Counterclockwise rotation: Sensing range reduced.

6 COMMISSIONING

10 8025299.1BBX / 2021-05-12 | SICK

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