SICK WFZ Operating Instructions Manual
WFZ
Fork sensors
O P E R A T I N G I N S T R U C T I O N S
WFZ
Fork sensors
O P E R A T I N G I N S T R U C T I O N S
de
en
Described product
2006/42/EC
NO
SAFETY
WFZ
Manufacturer
SICK AG
Erwin-Sick-Str. 1
79183 Waldkirch
Germany
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© SICK AG. All rights reserved.
Original document
This document is an original document of SICK AG.
8023382.14JZ | SICK
Subject to change without notice
3
CONTENTS
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
4
8023382.14JZ | SICK
Subject to change without notice
1 General safety notes
2006/42/EC
NO
SAFETY
EN/IEC 60825-1:2014
IEC60825-1:2007
LASERKL ASSE 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
■
Read the operating instructions before commissioning.
■
Connection, mounting, and adjustment may only be performed by trained
specialists.
■
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.
GENERAL SAFETY NOTES 1
2 Intended use
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Subject to change without notice
ATTENTION
WARNING: Interruption, manipulation or incorrect use can lead to hazardous exposure
due to laser radiation.
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.
5
4
4
2
3
6
5
7
4
1
3 OPERATING ELEMENTS AND STATUS INDICATORS
3 Operating elements and status indicators
Figure 1: Indicator LEDs
Cover side = upper side
1
Detection axis
2
Male connector, M12, 5-pin
3
Fixing hole Ø 5.4 mm
4
LED indicator green: supply voltage active
5
LED indicator yellow: Status of received light beam Q2
6
LED indicator yellow: Status of received light beam Q1
7
6
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4 Mounting
1 2 3
6 5
4
MOUNTING 4
Figure 2: Mounting
Base screws
1
Optional base screws
2
Flank screws
3
No deformation!
4
Flank screws are loose
5
Base screws are tight
6
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
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Subject to change without notice
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.
7
1
2
5
4 3
3
1
2
5 ELECTRICAL INSTALLATION
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
1 BN + (L+)
2 WH Q2
3 BU - (M)
4 BK Q1
5 GY ET
6 Commissioning
1 Alignment: 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.
Figure 3: Switching outputs
1
2
3
Light beam 1, Q1
Light beam 2, Q2
Crossing point
8
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