SICK WTB4-3Teach-in Manuale utente

OPERATING I N S T R U C T I O N

en / de / fr / it / pt / es / zh / ru

SICK AG, Erwin-Sick-Strasse 1, D-79183 Waldkirch

8011166.126R

2006/42/EG

SAFETY

Photoelectric proximity sensor

Operating instructions

1 Safety notes

■Read the operating instructions before commissioning.

■Connection, mounting, and setting may only be performed by trained specialists.

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

■UL: Only for use in applications in accordance with NFPA 79. These devices shall

be protected by a 1 A fuse suitable for 30 V DC. Adapters listed by UL with connec‐

tion cables are available. Enclosure type 1.

■When commissioning, protect the device from moisture and contamination.

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

the sensor.

2 Correct use

The WTB4-3 is an opto-electronic photoelectric 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.

Photoelectric proximity sensor with background suppression.

Image: A

3 Commissioning

1 Check the application conditions: Adjust the sensing range and distance to the ob‐

ject or background and the remission capability of the object according to the cor‐

responding diagram [H] (x = sensing range, y = transition range between the set

sensing range and suppression of the background as a % of the sensing range (ob‐

ject remission / background remission). Remission: 6% = black , 18% = gray ,

90% = white  (referring to standard white as per DIN 5033).

8011166.126R | SICK

Subject to change without notice 1

Technical data, see page 72.

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

diagram [H] as follows:

Example: x = 100 mm, y = 7 => 7 % of 100 mm = 7 mm. That is, the background is

suppressed at a distance of > 107mm from the sensor.

(inch)

(0.98)

(1.97)

(2.95)

100

(3.94)

125

(4.92)

150

(5.91)

Distance in mm (inch)

% of sensing distance

6 %/90 %

18 %/90 %

90 %/90 %

Image: H

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

sories).

Note the sensor's maximum permissible tightening torque of 0.8 Nm.

Note the preferred direction of the object relative to the sensor [see A].

3 The sensors must be connected in a voltage-free state (VS = 0 V). The information

in the graphics [B] must be observed, depending on the type of connection:

– Male connector connection: pin assignment

– Cable: core color

Image: B

Only apply voltage/switch on the power supply (VS > 0 V) once all electrical connec‐

tions have been completed. The green LED indicator lights up on the sensor.

Explanations of the connection diagram (Graphic B):

Switching outputs Q and /Q (according to Graphic B):

Teach-in = external teach-in (ET) (see Adjustment)

WTB4-3Exxxx and WTB4-3Fxxxx

D: dark-switching, output (Q) switches off when an object is present in the sensing

range.

WTB4-3P1362 and WTB4-3Px1xx

WTB4-3N1362 and WTB3Nx1xx

L: light switching, output (Q) switches when an object is present in the sensing ran‐

ge.

WTB4-3P1162 and WTB4-3N1162

WTB4-3Px262 and WTB4-3Nx262

ANT: complementary outputs Q and Q/

WTB4-3Pxxx4 and WTB4-3Nxxx4

L: light switching, output (Q) switches when an object is present in the sensing ran‐

ge. In addition: ET: teach-in function via cable.

Connect ET cable (PIN 2) to UV for > 2 s (PNP output)

Connect ET cable (PIN 2) to M for > 2 s (NPN output)

3 COMMISSIONING

28011166.126R | SICK

Subject to change without notice

4 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 [E]. We recommend making the adjust‐

ments using an object with a low remission.

Image: E

Image: F

Sensor with teach-in button:

The sensing range is adjusted by pressing the teach-in button. Do not operate the

teach-in button using sharp objects. We recommend placing the switching state in

the object, e. g., see graphic F. Once the sensing range has been adjusted, the ob‐

ject is removed from the path of the beam, which causes the background to be

suppressed and the switching output to change (see graphic C).

The sensor is adjusted and ready for operation. Refer to graphics C and G to check

the function. If the switching output fails to behave in accordance with graphic C,

check application conditions. See section Fault diagnosis.

COMMISSIONING 3

8011166.126R | SICK

Subject to change without notice

Image: C

Image: G

Teach-in mode

for objects /

Teach-in mode

for objects

Teach-in time /

Teach-in time

Alignment /

Alignment

LED indicator /

LED indicator

Results /

Results

Single teach-in

pushbutton /

Single teach-in

pushbutton

Approx. 0.5 s /

Approx. 0.5 s

Sensor to ob‐

ject /

Sensor to object

Sensing range is

adjusted accor‐

ding to object /

Sensing range is

adjusted accor‐

ding to object

ET: Connect pin 2

or white wire to

UV for > 2 to < s

(PNP). /

ET: Connect pin 2

or white wire to

UV for > 2 to < s

(PNP).

> 2 s Sensor to ob‐

ject /

Sensor to object

Sensing range is

adjusted accor‐

ding to object /

Sensing range is

adjusted accor‐

ding to object

48011166.126R | SICK

Subject to change without notice

5 Fault diagnosis

Table indicates which measures are to be taken if the sensor stops working.

6 Table Fault diagnosis

LED indicator/fault pattern /

LED indicator/fault pattern

Cause /

Cause

Measures /

Measures

Green LED does not light up /

Green LED does not light up

No voltage or voltage below

the limit values /

No voltage or voltage below

the limit values

Check the power supply,

check all electrical connecti‐

ons (cables and plug connecti‐

ons) /

Check the power supply,

check all electrical connecti‐

ons (cables and plug connecti‐

ons)

Green LED does not light up /

Green LED does not light up

Voltage interruptions /

Voltage interruptions

Ensure there is a stable power

supply without interruptions /

Ensure there is a stable power

supply without interruptions

Green LED does not light up /

Green LED does not light up

Sensor is faulty /

Sensor is faulty

If the power supply is OK, re‐

place the sensor /

If the power supply is OK, re‐

place the sensor

Yellow LED flashes /

Yellow LED flashes

Sensor is still ready for opera‐

tion, but the operating conditi‐

ons are not ideal /

Sensor is still ready for opera‐

tion, but the operating conditi‐

ons are not ideal

Check the operating conditi‐

ons: Fully align the beam of

light (light spot) with the ob‐

ject. / Clean the optical surfa‐

ces . / Readjust the sensitivity

(teach-in) / Check sensing

range and adjust if necessary;

see graphic F. /

Check the operating conditi‐

ons: Fully align the beam of

light (light spot) with the ob‐

ject. / Clean the optical surfa‐

ces . / Readjust the sensitivity

(teach-in) / Check sensing

range and adjust if necessary;

see graphic F.

Yellow LED flashes (only brie‐

fly) /

Yellow LED flashes (only briefly)

Teach-in mode /

Teach-in mode

Check the teach-in mode /

Check the teach-in mode

Yellow LED lights up, no object

in the path of the beam /

Yellow LED lights up, no object

in the path of the beam

/ Distance between the sen‐

sor and the background is too

short /

/ Distance between the sen‐

sor and the background is too

short

Reduce the sensing range,

see graphic F /

Reduce the sensing range,

see graphic F

Object is in the path of the be‐

am, yellow LED does not light

up /

Object is in the path of the be‐

am, yellow LED does not light

Distance between the sensor

and the object is too long or

sensing range is set too

short /

Distance between the sensor

and the object is too long or

sensing range is set too short

Increase the sensing range,

see graphic F /

Increase the sensing range,

see graphic F

FAULT DIAGNOSIS 5

8011166.126R | SICK

Subject to change without notice

7 Disassembly and disposal

The sensor must be disposed of according to the applicable country-specific regulati‐

ons. Efforts should be made during the disposal process to recycle the constituent ma‐

terials (particularly precious metals).

8 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.

7 DISASSEMBLY AND DISPOSAL

68011166.126R | SICK

Subject to change without notice

Reflexions-Lichttaster

Betriebsanleitung

9Sicherheitshinweise

■Vor der Inbetriebnahme die Betriebsanleitung lesen.

■Anschluss, Montage und Einstellung nur durch Fachpersonal.

■Kein Sicherheitsbauteil gemäß EU-Maschinenrichtlinie.

■UL: Nur zur Verwendung in Anwendungen gemäß NFPA 79. Diese Geräte müssen

mit einer für 30V DC geeigneten 1A-Sicherung abgesichert werden. Von UL geliste‐

te Adapter mit Anschlusskabeln sind verfügbar. Enclosure type 1.

■Gerät bei Inbetriebnahme vor Feuchte und Verunreinigung schützen.

■Diese Betriebsanleitung enthält Informationen, die während des Lebenszyklus des

Sensors notwendig sind.

10 Bestimmungsgemäße Verwendung

Die WTB4-3 ist ein optoelektronischer Reflexions-Lichttaster (im Folgenden Sensor ge‐

nannt) und wird zum optischen, berührungslosen Erfassen von Sachen, Tieren und Per‐

sonen eingesetzt. Bei jeder anderen Verwendung und bei Veränderungen am Produkt

verfällt jeglicher Gewährleistungsanspruch gegenüber der SICK AG.

Reflexionslichttaster mit Hintergrundausblendung.

Abb.: A

Technische Daten siehe Seite 72.

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Subject to change without notice

11 Inbetriebnahme

1 Einsatzbedingungen prüfen: Schaltabstand und Distanz zum Objekt bzw. Hinter‐

grund sowie Remissionsvermögen des Objektes mit dem zugehörigen Diagramm

[vgl. H] abgleichen (x = Schaltabstand, y = Übergangsbereich zwischen eingestell‐

tem Schaltabstand und Ausblendung des Hintergrundes in % des Schaltabstands

(Remission Objekt / Remission Hintergrund)). Remission: 6 % = schwarz , 18 % =

grau , 90 % = weiß  (bezogen auf Standardweiß nach DIN 5033).

Die minimale Distanz (= y) für die Hintergrundausblendung kann aus dem Dia‐

gramm [vgl. H] wie folgt ermittelt werden:

Beispiel: x = 100 mm, y = 7 => 7 % von 100 mm = 7 mm. D. h. der Hintergrund

wird ab einer Distanz von > 107 mm vom Sensor ausgeblendet.

(inch)

(0.98)

(1.97)

(2.95)

100

(3.94)

125

(4.92)

150

(5.91)

Distance in mm (inch)

% of sensing distance

6 %/90 %

18 %/90 %

90 %/90 %

Abb.: H

2 Den Sensor an einen geeigneten Befestigungswinkel montieren (siehe SICK-Zube‐

hör-Programm).

Maximal zulässiges Anzugsdrehmoment des Sensors von 0.8 Nm beachten.

Vorzugsrichtung des Objektes zum Sensor beachten [vgl. A].

3 Anschluss der Sensoren muss spannungsfrei (VS = 0 V) erfolgen. Je nach An‐

schlussart sind die Informationen in den Grafiken [vgl. B] zu beachten:

– Steckeranschluss: Pinbelegung

– Leitung: Adernfarbe

10 BESTIMMUNGSGEMÄSSE VERWENDUNG

88011166.126R | SICK

Subject to change without notice

Abb.: B

Erst nach Anschluss aller elektrischen Verbindungen die Spannungsversorgung (VS

> 0 V) anlegen bzw. einschalten. Am Sensor leuchtet die grüne Anzeige-LED.

Erläuterungen zum Anschlussschema (Grafik B):

Schaltausgänge Q bzw. /Q (gemäß Grafik B):

Teach = externer Teach (ET) (siehe Einstellung)

WTB4-3Exxxx und WTB4-3Fxxxx

D: dunkelschaltend, Ausgang (Q) schaltet aus, wenn sich ein Objekt im Tastbereich

befindet.

WTB4-3P1362 und WTB4-3Px1xx

WTB4-3N1362 und WTB3Nx1xx

L: hellschaltend, Ausgang (Q) schaltet, wenn sich ein Objekt im Tastbereich befin‐

det.

WTB4-3P1162 und WTB4-3N1162

WTB4-3Px262 und WTB4-3Nx262

ANT: Antivalente Ausgänge Q und Q/

WTB4-3Pxxx4 und WTB4-3Nxxx4

L: hellschaltend, Ausgang (Q) schaltet, wenn sich ein Objekt im Tastbereich befin‐

det. Zusätzlich: ET: Teach-Funktion über Leitung.

Leitung ET (PIN 2) > 2 s auf UV legen (PNP-Ausgang)

Leitung ET (PIN 2) > 2 s auf M legen (NPN-Ausgang)

4 Sensor auf Objekt ausrichten. Positionierung so wählen, dass der rote Sendelicht‐

strahl in der Mitte des Objekts auftrifft. Es ist darauf zu achten, dass die optische

Öffnung (Frontscheibe) des Sensors vollständig frei ist [vgl. E]. Wir empfehlen, die

Einstellung mit einem Objekt von niedriger Remission vorzunehmen.

Abb.: E

INBETRIEBNAHME 11

8011166.126R | SICK

Subject to change without notice

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