SICK WFZ User manual

OPERATING INSTRUCTIONS
WFZ
Fork sensors

OPERATING INSTRUCTIONS
WFZ
Fork sensors
de
en

Described product
WFZ
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.
© SICK AG. All rights reserved.
Original document
This document is an original document of SICK AG.
2006/42/EC
NO
SAFETY
8023382.14JZ | SICK
Subject to change without notice 3

Contents
1 General safety notes......................................................................... 5
2 Intended use...................................................................................... 5
3 Operating elements and status indicators.................................... 6
4 Mounting............................................................................................. 7
5 Electrical installation........................................................................ 7
5.1 DC.............................................................................................................. 8
6 Commissioning.................................................................................. 8
7 Troubleshooting................................................................................. 10
8 Disassembly and disposal............................................................... 11
9 Maintenance...................................................................................... 11
10 Technical data.................................................................................... 11
CONTENTS
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1 General safety notes
■Read the operating instructions before commissioning.
■
Connection, mounting, and adjustment may only be performed by trained
specialists.
■
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.
■The radiation of the emitted light must not be focused by additional optical
devices.
EN/IEC 60825-1:2014
IEC60825-1:2007
LASERKLASSE 1
Laser
1
Maximum pulse power < 2,5 mW
Puls length: 4 µs
Wavelength: 650 - 670 nm
Complies with 21 CFR 1040.10
and 1040.11 except for deviations
pursuant to Laser Notice No. 50,
dated June 24, 2007
ATTENTION
WARNING: Interruption, manipulation or incorrect use can lead to hazardous exposure
due to laser radiation.
2 Intended use
The WFZ through-beam photoelectric sensor consists of two opto-electronic sender and
receiver units. The respective sender and receiver units are arranged crosswise so that
objects in the center of the crossing point can be positioned using signals from both
switching outputs (Q1 + Q2). The WFZ is used for the optical, non-contact detection and
positioning of objects.
GENERAL SAFETY NOTES 1
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3 Operating elements and status indicators
4
4
2
3
6
5
7
4
1
Figure 1: Indicator LEDs
1Cover side = upper side
2Detection axis
3Male connector, M12, 5-pin
4Fixing hole Ø 5.4 mm
5LED indicator green: supply voltage active
6LED indicator yellow: Status of received light beam Q2
7LED indicator yellow: Status of received light beam Q1
3 OPERATING ELEMENTS AND STATUS INDICATORS
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4 Mounting
1 2 3
6 5
4
Figure 2: Mounting
1Base screws
2Optional base screws
3Flank screws
4No deformation!
5Flank screws are loose
6Base screws are tight
Normal mounting is recommended to be done with the base screws.
To obtain better stability the optional base screws can be used.
NOTE
It is important that the mounting surface is flat.
NOTE
To obtain full vibration resistance all 6 screws are to be used.
This requires an absolute flat mounting surface to avoid twisting of the sensor.
The reference points of the respective fixing holes to the crossed light beam can be
seen in the dimensional drawing, see figure 8.
5 Electrical installation
The sensors must be connected in a voltage-free state (UV = 0 V). The following informa‐
tion must be observed, depending on the connection type:
– Plug connection
Only apply voltage/switch on the voltage supply (UV > 0 V) once all electrical connec‐
tions have been established.
MOUNTING 4
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Explanations of the connection diagram (Tables 2–7):
Q = switching outputs
5.1 DC
DC: 10 V ... 30 V DC, see "Technical data", page 11
Table 1: DC
WFZ
1BN + (L+)
2WH Q2
3BU - (M)
4BK Q1
5GY ET
12
5
4 3
6 Commissioning
1Alignment: Positioning of objects in the crossed light beams
If one of the two crossed light beams is interrupted, this is signaled by the respective
switching behavior of Q1/Q2.
If light beam 1 is interrupted, switching output Q1 (pin 4) is deactivated.
If light beam 2 is interrupted, switching output Q2 (pin 2) is deactivated.
If an object covers both light beams, light beams 1+2 are interrupted and signaled by
switching outputs Q1 + Q2.
3
1
2
Figure 3: Switching outputs
1Light beam 1, Q1
2Light beam 2, Q2
3Crossing point
5 ELECTRICAL INSTALLATION
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1.
2.
3.
Figure 4: Reference points
The size of the object must be taken into account when positioning the switching point, see
figure 4.
The positioning procedure is carried out as follows:
Point determination
1. Move the tool into the WFZ until a switching output switches
2. Move the tool sideways until the second switching output switches
3. Move back to the central position and then move towards the center of the fork until
the crossing point is reached and both switching outputs switch
1
2
3
Figure 5: Point determination at the object tip
The alignment of the tool on the Z axis can also be ascertained by repositioning the tool on
the Z axis after point determination has been carried out (Step 4, 5 and 6).
COMMISSIONING 6
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4
5
6
Figure 6: Second point determination
If two points on the tool’s Z axis lie within the WFZ’s crossing point, the tool is not only cen‐
trally aligned but also perpendicular to the WFZ.
Figure 7: Correct positioning in the crossing point, perpendicular to the WFZ
2Teach-in function
Route pin 5 and gray cable to + (L+) for > 1 s. The yellow LEDs flash during the teach-in
procedure.
NOTE
For maximum accuracy, we recommend using the teach-in function before every measure‐
ment. At least, however:
•after initial commissioning of the sensor
•after cleaning
•if the light beams display a weak signal, even though the light path is clear
3 PNP (Load → M): light path free, output (Q) high
7 Troubleshooting
The Troubleshooting table indicates measures to be taken if the sensor stops working.
7 TROUBLESHOOTING
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Table 2: Troubleshooting
LED indicator/fault pattern Cause Measures
Green LED does not light up or
flickers
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
Q-LED flashes yellow Sensor is still ready for opera‐
tion, but the operating condi‐
tions are not ideal
Cleaning of the optical sur‐
faces. Perform teach-in again.
One of the two Q-LEDs do not
light up
The respective light beam is
interrupted
Remove object from light
beam
The optical surfaces are cont‐
aminated
Cleaning of the optical sur‐
faces. Perform teach-in again.
8 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.
9 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.
10 Technical data
WFZ
Laser class I
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WFZ
Wavelength 650 nm
Fork width 120 mm
Fork depth 185 mm
Smallest detectable object (MDO) 0.5 mm
Switching function Light switching
Supply voltage VS10 V DC ... 30 V DC1)
Current consumption < 100mA2)
Output current Imax. 100 mA
Max. switching frequency 1,000 Hz3)
Reproducibility ± 0.01 mm
Max. response time 0.5 ms4)
Initialization time 50 ms
Enclosure rating IP67
Protection class III
Ambient operating temperature -10 °C ... +50 °C5)
Storage temperature -30 °C ... +65 °C
1) Limit value; operation in short-circuit protection mains max. 8 A; residual ripple max. 5 Vss
2) Without load.
3) With light / dark ratio 1:1
4) Signal transit time with resistive load
5) Do not bend cables below 0 °C.
Dimensional drawing
220 (8.66)
120 (4.72)
5.4 (0.21)
29.5
(1.16)
63 (2.48) 100 (3.94)
220 (8.66)
167 (6.57)
156 (6.14)
100 (3.94)
113 (4.45)
78 (3.07)
3
3
1
25 (0.98)
2
4
3
Figure 8: Dimensional drawing
1Detection axes
2Male connector, M12, 5-pin
10 TECHNICAL DATA
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3Fixing hole Ø 5.4 mm
4LED indicator
TECHNICAL DATA 10
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BETRIEBSANLEITUNG
WFZ
Gabelsensoren
de
en

Beschriebenes Produkt
WFZ
Hersteller
SICK AG
Erwin-Sick-Str. 1
79183 Waldkirch
Deutschland
Rechtliche Hinweise
Dieses Werk ist urheberrechtlich geschützt. Die dadurch begründeten Rechte bleiben
bei der Firma SICK AG. Die Vervielfältigung des Werks oder von Teilen dieses Werks ist
nur in den Grenzen der gesetzlichen Bestimmungen des Urheberrechtsgesetzes zuläs‐
sig. Jede Änderung, Kürzung oder Übersetzung des Werks ohne ausdrückliche schriftli‐
che Zustimmung der Firma SICK AG ist untersagt.
Die in diesem Dokument genannten Marken sind Eigentum ihrer jeweiligen Inhaber.
© SICK AG. Alle Rechte vorbehalten.
Originaldokument
Dieses Dokument ist ein Originaldokument der SICK AG.
2006/42/EC
NO
SAFETY
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Inhalt
11 Allgemeine Sicherheitshinweise..................................................... 17
12 Bestimmungsgemäße Verwendung............................................... 17
13 Bedien- und Anzeigeelemente........................................................ 18
14 Montage.............................................................................................. 19
15 Elektrische Installation..................................................................... 19
15.1 DC.............................................................................................................. 20
16 Inbetriebnahme................................................................................. 20
17 Störungsbehebung............................................................................ 22
18 Demontage und Entsorgung............................................................ 23
19 Wartung.............................................................................................. 23
20 Technische Daten.............................................................................. 24
INHALT
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11 Allgemeine Sicherheitshinweise
■Vor der Inbetriebnahme die Betriebsanleitung lesen.
■
Anschluss, Montage und Einstellung nur durch Fachpersonal.
■
2006/42/EC
NO
SAFETY
Kein Sicherheitsbauteil gemäß EU-Maschinenrichtlinie.
■
Gerät bei Inbetriebnahme vor Feuchte und Verunreinigung schützen.
■Diese Betriebsanleitung enthält Informationen, die während des Lebenszyklus des
Sensors notwendig sind.
■Die Strahlung des Sendelichtes darf nicht durch zusätzliche optische Bauteile
fokussiert werden.
EN/IEC 60825-1:2014
IEC60825-1:2007
LASERKLASSE 1
Laser
1
Maximale Pulsleistung: < 2,5 mW
Impulsdauer: 4 µs
Wellenlänge: 650 - 670 nm
Entspricht 21 CFR 1040.10
und 1040.11 mit Ausnahme von
Abweichungen nach
Laser-Hinweis 50, 24. Juni 2007
ACHTUNG
ACHTUNG: Eingriffe oder Manipulationen oder nicht bestimmungsgemäße Verwendung
kann zu gefährlicher Belastung durch Laser-Lichtstrahlung führen.
12 Bestimmungsgemäße Verwendung
Das Einweg-Lichtschranken-System WFZ besteht aus zwei optoelektronischen Sende-
und Empfangseinheiten. Die jeweiligen Sende- und Empfangseinheiten sind gekreuzt
angeordnet, sodass Objekte im Mittelpunkt des Kreuzungspunkts, durch Signalisierung
beider Schaltausgänge (Q1 + Q2) positioniert werden können. Das WFZ wird zum opti‐
schen, berührungslosen Erfassen und Positionieren von Objekten eingesetzt.
ALLGEMEINE SICHERHEITSHINWEISE 11
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13 Bedien- und Anzeigeelemente
4
4
2
3
6
5
7
4
1
Abbildung 9: Anzeige LEDs
1Deckelseite = obere Seite
2Detektionsachse
3Stecker M12, 5-polig
4Befestigungsbohrung Ø 5,4 mm
5Anzeige-LED grün: Betriebsspannung aktiv
6Anzeige-LED gelb: Status Lichtempfang Q2
7Anzeige-LED gelb: Status Lichtempfang Q1
13 BEDIEN- UND ANZEIGEELEMENTE
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14 Montage
1 2 3
6 5
4
Abbildung 10: Montage
1Basisschrauben
2Optionale Basisschrauben
3Gabelschrauben
4Keine Verformung!
5Gabelschrauben sind lose
6Basisschrauben sind fest
Zur normalen Montage der WFZ wird empfohlen, die Basisschrauben zu verwenden.
Um eine bessere Stabilität zu erzielen, können die optionalen Basisschrauben verwen‐
det werden.
HINWEIS
Es ist wichtig, dass die Montageoberfläche eben ist.
HINWEIS
Um die maximale Vibrationsfestigkeit zu erreichen, müssen alle sechs Befestigungs‐
bohrungen verwendet werden.
Dies erfordert eine absolut ebene Montagefläche, um ein Verdrehen des Sensors zu
vermeiden.
Die Bezugspunkte der jeweiligen Befestigungsbohrungen zum gekreuzten Lichtstrahl
kann der Maßzeichnung entnommen werden, siehe Abbildung 16.
15 Elektrische Installation
Anschluss der Sensoren muss spannungsfrei (UV = 0 V) erfolgen. Je nach Anschlussart
sind die folgenden Informationen zu beachten:
– Steckeranschluss
MONTAGE 14
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Erst nach Anschluss aller elektrischen Verbindungen die Spannungsversorgung (UV > 0
V) anlegen bzw. einschalten.
Erläuterungen zum Anschlussschema (Tabellen 2-7):
Q = Schaltausgänge
15.1 DC
DC: 10 V ... 30 V DC, siehe "Technische Daten", Seite 24
Tabelle 3: DC
WFZ
1BN + (L+)
2WH Q2
3BU - (M)
4BK Q1
5GY ET
12
5
4 3
16 Inbetriebnahme
1Ausrichtung: Positionierung von Objekten in den gekreuzten Lichtstrahlen
Das Unterbrechen eines der beiden gekreuzten Lichtstrahlen wird durch das jeweilige
Schaltverhalten Q1 / Q2 signalisiert.
Wird der Lichtstrahl 1 unterbrochen, so wird der Schaltausgang Q1 (pin 4) deaktiviert.
Wird der Lichtstrahl 2 unterbrochen, so wird der Schaltausgang Q2 (pin 2) deaktiviert.
Deckt ein Objekt beide Lichtstrahlen ab, so werden die Lichtstrahlen 1 + 2 unterbrochen
und durch die Schaltausgänge Q1 + Q2 signalisiert.
3
1
2
Abbildung 11: Schaltausgänge
1Lichtstrahl 1, Q1
2Lichtstrahl 2, Q2
3Kreuzungspunkt
15 ELEKTRISCHE INSTALLATION
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