SICK WTB4F Manual de usuario

OPERATING INSTRUCTIONS

WTB4F

Miniature photoelectric sensors

OPERATING INSTRUCTIONS

WTB4FP MultiSwitch

Miniature photoelectric sensors

Described product

W4F

WTB4FP MultiSwitch

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

8025665 / 2020-11-13 | SICK

Subject to change without notice 3

Contents

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

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

3 Intended use...................................................................................... 5

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

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

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

7 Commissioning.................................................................................. 7

7.1 Alignment.................................................................................................. 7

7.2 Check the application conditions:........................................................... 8

7.3 Setting....................................................................................................... 9

7.4 Process data structure............................................................................. 11

8 Troubleshooting................................................................................. 11

9 Disassembly and disposal............................................................... 11

10 Maintenance...................................................................................... 12

11 Technical specifications................................................................... 12

11.1 Dimensional drawings.............................................................................. 13

CONTENTS

48025665 / 2020-11-13 | SICK

Subject to change without notice

1 General safety notes

■Read these operating instructions before commissioning the device.

■

Connection, mounting and configuration of the device must only be carried

out by qualified personnel.

■

2006/42/EC

SAFETY

This device does not constitute a safety component as defined in the

Machinery Directive.

■

When commissioning the device, ensure adequate protection against mois‐

ture, contamination and UV radiation (sunlight).

■These operating instructions contain information required during the life cycle of

the photoelectric 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 Intended use

The WTB4FP MultiSwitch is an opto-electronic photoelectric background suppression

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.

4 Operating elements and status indicators

Photoelectric proximity sensor with background suppression.

1BluePilot blue: operating mode, Switching state QL1, QL2

2Teach-Button: adjusting the sensing range

3LED indicator yellow: status of received light beam

4LED indicator green: supply voltage active

GENERAL SAFETY NOTES 1

8025665 / 2020-11-13 | SICK

Subject to change without notice 5

5 Mounting

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

sories).

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.

6 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: Pin assignment

– Cable: Wire color

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

been established.

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

UB: 10 ... 30 V DC

Table 1: Electrical connection

x4 x2 xH

1 = BN

2 = WH

3 = BU

4 = BK

4 3

0.14 mm2

AWG26

5 MOUNTING

68025665 / 2020-11-13 | SICK

Subject to change without notice

Table 2: DC

WTx4Fx- xx16xxxxA00 xx16xxxxA01-

A99

xx16D xx16R xx16x

1 = BN + (L+)

2 = WH MF

3 = BU - (M)

4 = BK QL1 / C

Default: MF QL2 QL2 www.sick.com

8022709

Default:

QL1 / C

QL1 QL1 www.sick.com

8022709

QL1 QL2

QL1/L2

Push-

pull

(≤

100 mA

)

+ (L+)

‒ (M)

+ (L+)

‒ (M)

+ (L+)

‒ (M)

QL1 / L2

Push-

pull

(≤

100 mA

)

+ (L+)

‒ (M)

+ (L+)

‒ (M)

+ (L+)

‒ (M)

7 Commissioning

7.1 Alignment

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].

COMMISSIONING 7

8025665 / 2020-11-13 | SICK

Subject to change without notice 7

Figure 2: Alignment

Figure 3: Alignment

7.2 Check the application conditions:

Sensing range

WTB4FP MultiSwitch 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 back‐

ground should be maintained.

Check the application conditions:

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

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

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

Radiance factor: 6% = black 1, 18% = gray 2, 90% = white 3 (referring 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 diagram 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.

7 COMMISSIONING

88025665 / 2020-11-13 | SICK

Subject to change without notice

(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

815

715

4 220

Distance in mm (inch)

210

215

(3.15)

(1.57)

120

(4.72)

160

(6.30)

200

(7.87)

240

(9.45)

A B

BluePilot

Figure 5: bar graph

ASensing range min. in mm

BSensing range max. in mm

CViewing range

DAdjustable switching threshold for fore‐

ground suppression

ESensing range indicator

FTeach-Turn adjustment

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

7.3 Setting

Sensing range adjustment

WTB4Fx-xxxxxx2xAxx

1 7

3 4 5

4 operating mode: 2 switching points

1 - 3 QL1 active

5 - 7 QL2 active

7 Distance value via Io-Link

1 - 6 off

WTB4Fx-xxxxxx50Xxx2

COMMISSIONING 7

8025665 / 2020-11-13 | SICK

Subject to change without notice 9

1...3 sec.

QL1

1...3 sec.

QL2

QL1+QL2

Figure 7: WTB4F, adjustment of the sensing range using a teach-turn adjustment

7 COMMISSIONING

10 8025665 / 2020-11-13 | SICK

Subject to change without notice

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