SICK WT24-2 Series User manual

BETRIEBSANLEITUNG
WT24-2
Kompakt-Lichtschranken
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OPERATING INSTRUCTIONS
WT24-2
Compact photoelectric sensors
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en
es
fr
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Described product
W24-2
WT24-2
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.
© SICK AG. All rights reserved.
Original document
This document is an original document of SICK AG.
2006/42/EC
NO
SAFETY
OPERATING INSTRUCTIONS
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Contents
1 About this document................................................................................ 5
2 Safety information.................................................................................... 6
3 Product description.................................................................................. 6
4 Mounting................................................................................................... 7
5 Electrical installation................................................................................ 7
6 Additional functions.................................................................................. 10
7 Commissioning......................................................................................... 11
8 Devices with special features.................................................................. 13
9 Troubleshooting........................................................................................ 14
10 Disassembly and disposal....................................................................... 14
11 Maintenance............................................................................................. 14
12 Technical data........................................................................................... 15
13 Annex......................................................................................................... 16
OPERATING INSTRUCTIONS
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1 About this document
1.1 Further information
You can find the product page under the Product ID at: pid.sick.com/{P/N}.
P/N corresponds to the part number of the product.
The following information is available depending on the product:
•Data sheets
•These publication in all available languages
•CAD files and dimensional drawings
•Certificates (e.g., declaration of conformity)
•Other publications
•Software
•Accessories
1.2 Symbols and document conventions
Warnings and other notes
DANGER
Indicates a situation presenting imminent danger, which will lead to death or serious
injuries if not prevented.
WARNING
Indicates a situation presenting possible danger, which may lead to death or serious
injuries if not prevented.
CAUTION
Indicates a situation presenting possible danger, which may lead to moderate or minor
injuries if not prevented.
NOTICE
Indicates a situation presenting possible danger, which may lead to property damage if
not prevented.
NOTE
Highlights useful tips and recommendations as well as information for efficient and
trouble-free operation.
Instructions to action
bThe arrow denotes instructions to action.
1. The sequence of instructions is numbered.
2. Follow the order in which the numbered instructions are given.
✓The tick denotes the results of an action.
OPERATING INSTRUCTIONS
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2 Safety information
2.1 General safety notes
2.1.1 Safety notes
■Read the operating instructions before commissioning.
■
Connection, mounting, and setting may only be performed by skilled per‐
son.
■
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.
2.2 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
2.3 Correct use
The WT24-2 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.
3 Product description
3.1 Operating elements and status indicators
Photoelectric proximity sensor with background suppression.
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Table 1: Display and operating elements
t2
t2
t1
t1
t1+ t2
t0
PNP
NPN
D
H
1
2
3
6
4
5
7
1.0
1Yellow LED indicator
2Potentiometer: adjust‐
ment of sensing range
3Switch: light (L)/dark
(D)
4Switch: NPN/PNP
5Potentiometer: adjust‐
ment of time delay t2
6Potentiometer: adjust‐
ment of time delay t1
7Potentiometer: adjust‐
ment of time stage
PNP
NPN
D
H
1.0
1
2
3
4
1Yellow LED indicator
2Potentiometer: adjust‐
ment of sensing range
3Switch: light (L)/dark
(D)
4Switch: NPN/PNP
t2
t2
t1
t1
t1+ t2
t0
D
H
1.0
1
2
3
5
4
6
1Yellow LED indicator
2Potentiometer: adjust‐
ment of sensing range
3Switch: light (L)/dark
(D)
4Potentiometer: adjust‐
ment of time delay t2
5Potentiometer: adjust‐
ment of time delay t1
6Potentiometer: adjust‐
ment of time stage
D
H
1.0
1
2
3
1Yellow LED indicator
2Potentiometer: adjust‐
ment of sensing range
3Switch: light (L)/dark
(D)
4 Mounting
Mount the sensorusing a suitable mounting bracket (see the SICK range of accesso‐
ries).
Note the sensor’s maximum permissible tightening torque of 2Nm.
Note the preferred direction of the object relative to the sensor, cf. see „Dimensional
drawing“, page 16.
5 Electrical installation
The sensors must be connected in a voltage-free state. The following information must
be observed, depending on the connection type:
– Plug connection: note pin assignment: when the lid is open, the male connector
can be swiveled horizontally and vertically.
– Terminal connection: Note the permissible cable diameter of 5 to 10mm. When
the lid is open, the M16 connector can be swiveled horizontally and vertically.
Unscrew the M16 connector and remove sealing plug. Lead voltage-free supply
cable through and connect sensor in accordance with table 2 and table 4.
Retighten M16 connector with seal so that the IP enclosure rating of the device is
ensured.
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Figure 1: Opening the sensor Figure 2: Electrical connection
Only apply voltage/switch on the power supply once all electrical connections have
been established.
Explanation of the connection diagram (Tables 2-7) which are divided up into DC and
AC/DC devices:
Alarm = alarm output (see table 2 and Additional functions)
n. c. = not connected
NC = normally closed
NO = normally open
Q / Q = switching outputs
TE/Test = test input (see table 2 and table 7)
5.1 WT24-2Bxxx, WT24-2Vxxx
UB: 10 . 30VDC, see „Technical data“, page 15
Table 2: DC
WT24-2 B3x3 B2x0 V2x0 B4x0 V5x0 V510S15 B410S25
1+ (L+) + (L+) + (L+) + (L+) + (L+) + (L+) + (L+)
2- (M) - (M) - (M) Test Test Alarm n. c.
3Q/Q- Alarm - (M) - (M) - (M) - (M)
4-Q/QQ/QQ/QQ/QQ/QQ/Q
5- Test Test - Alarm Test -
IN = 4A
1 2 3 4 5
0.14 ...
1.5 mm2
IN = 4A
1 2 3 4 5
0.14 ...
1.5 mm2
IN = 4A
2 1
4
3
2 1
4
3
5
2 1
4
3
5
2 1
4
3
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Table 3: DC
H
D
3
NPN
PNP
4
H, PNP: Q/Q (≤ 100mA)
+ (L+)
Q/Q
– (M)
+ (L+)
Q/Q
– (M)
D, PNP: Q/Q (≤ 100mA)
+ (L+)
Q/Q
– (M)
+ (L+)
Q/Q
– (M)
H, NPN: Q/Q (≤ 100mA)
+ (L+)
Q/Q
– (M)
+ (L+)
Q/Q
– (M)
D, NPN: Q/Q (≤ 100mA)
+ (L+)
Q/Q
– (M)
+ (L+)
Q/Q
– (M)
5.2 WT24-2Rxxx
UB 20 V ... 250 V AC/DC, see „Technical data“, page 15
Table 4: AC/DC
WT24-R2x0 WT24-2R5x8 WT24-2R5x9
1L1 / + N / - N / -
2N / - NC NC
3Relay n. c. n. c.
4Relay NO NO
5Relay L1 / + L1 / +
1 2 3 4 5
0.14 ... 1.5 mm2
IN = 4A
3
4
15
2
IN = 4A
3
4
1
5
2
IN = 4A
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Table 5: AC/DC relay
Relay
H
D
3WT24-2R2x0
H
3
4
5
3
4
5
Imax. = 4A @ 250V AC
4A @ 24V DC
0.125A @ 250 V DC
UL: 4A @ 250 V AC, general
use
4A @ 250 V AC, resistive
(NO)
3A @ 250 V AC, resistive
(NC)
4A @ 24 V DC, NO, general
use
3A @ 24 V DC, NC, general
use
R300
B300 (NO contacts only)
D
3
4
5
3
4
5
WT24-2R5x8, WT24-2R5x9: Imax. = 2.5A @ 250 V AC, 2.5A @ 24 V DC, 0.125A @ 250 V
DC
6 Additional functions
Alarm
Alarm output: the sensor (WT24-2Vxxx) features a pre-failure notification output
(“Alarm” in connection diagram [see „WT24-2Bxxx, WT24-2Vxxx“, page 8]), which
issues a notification if the sensor is only ready for operation to a limited extent. The LED
indicator flashes in this case. Possible causes: sensor is contaminated, sensor is out of
alignment. In the good state: LOW (0), if excessively contaminated HIGH (1).
Table 6: Alarm
Alarm (≤ 100mA)
+ (L+)
Alarm
– (M)
+ (L+)
Alarm
– (M)
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Test input
Test input: the WT24-2B/-V sensors feature a test input (“TI” or “Test” on the connec‐
tion diagram [see „WT24-2Bxxx, WT24-2Vxxx“, page 8 and see table 7]), which can
be used to switch the sender off and, therefore, check that the sensor is functioning
correctly: if female cable connectors with LED indicators are used, you have to ensure
that the TI is assigned accordingly.
If an object is detected, activate the test input (see the connection diagram [see
„WT24-2Bxxx, WT24-2Vxxx“, page 8 and see table 7], PNP: TE → M). The send LED is
shut down or no object being detected is simulated. Use the following table to check the
function. If the switching output fails to behave in accordance with the following table,
check the application conditions. See section Fault diagnosis.
Table 7: Test
Test
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
7 Commissioning
1Alignment
WT24-2Xx1x, -2Xx2x: align sensor on object. Select the position so that the infrared light
(not visible) hits the center of the object. The correct alignment can only be detected via
the LED indicators. See figure 3 and figure 4. You must ensure that the optical opening
(front screen) of the sensor is completely clear.
Figure 3: Alignment Figure 4: Alignment 2
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2Sensing range
WTB24-2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 should be
maintained.
Remission: 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 [figure 5 1] as follows:
Example: x = 600 mm, y = 4.5 => 4.5% of 600 mm = 27 mm. That is, the background is
suppressed at a distance of > 627mm from the sensor.
10
8
6
4
2
0
6%/90%
18%/90%
90%/90%
mm 200 400 600 800 1000 1200 1400
Distance in mm
1
2
3
y
x
Figure 5: WT24-2Xx4x, -2Xx5x, red light
yx
white back-
ground (90%)
x = 600mm, y = 27mm
(= 4.5% of 600mm)
100 600
100 900
100 1,200
1
2
3
A B
A = detection distance (depending on
object remission)
B= adjustment range
10
8
6
4
2
0
6%/90%
18%/90%
90%/90%
mm 500 1000 1500 2000 2500 3000
Distance in mm
1
2
3
y
x
Figure 6: WT24-2Xx1x, -2Xx2x, infrared
light
yx
white back-
ground (90%)
x = 1,000mm, y = 30mm
(= 3% of 1,000mm)
100 1,300
100 1,800
100 2,500
1
2
3
A B
A = detection distance (depending on
object remission)
B= adjustment range
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3Sensing range setting
Sensor with potentiometer: open the sensor cover and protective hood, make sure that no
dirt has gotten into the sensor.
The sensing range is adjusted with the potentiometer (type: without stop). Clockwise
rotation: sensing range increased; counterclockwise rotation: sensing range reduced. We
recommend placing the object within the sensing range, e.g. see table 8. Once the sensing
range has been adjusted, the object is removed from the path of the beam, which causes
the background to be suppressed and the switching output to change [see figure 5 and
figure 6].
Table 8: Einstellung Schaltabstand
The sensor is adjusted and ready for operation.
4Time function setting
WT24-2: t0= no time delay, t1 = time delay, t2 = time delay; for -2R: 0 = relay deactivated,
1 = relay active. Time delay selector switch can be set on the device according to the
following graphic.
Time stages: 0.5 ... 10s can be adjusted.
0
1 2
+
0.5 ... 10 sec.
0.5 ... 10 sec.
0.5 ... 10 sec.
Figure 7: Time functions
8 Devices with special features
WT24-2xx2x / -2xx5x: with static front-screen heating for use in environments with
gradual temperature changes within the +5°C ... +15°C range.
WT24-2R210S03: with mounting bracket (2016754)
WT24-2B420S08: sensing range max.: 30…3000mm on white (90% remission), with
timer unit: adjustable 0.6…1.3sec
WT24-2V210S09: preset to dark switching, with mounting bracket (2016754)
WT24-2V540S10: glass front screen
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WT24-2R210S11: sensing range, typ. max.: 100…2000mm on white (90% remission),
operating range or background suppression: can be adjusted between about 1200…
1600mm, increased resistance in the event of extreme impact load.
WT24-2V550S12: M12 male connector, 5-pin, glass front screen, dynamic power heat‐
ing on the rear side of the glass, current consumption: 150 mA. The dynamic power
heating is automatically switched on and off depending on the ambient temperature
(23-26°C). For the use of quick temperature changes in the range of <0°C…+10°C
WT24-2B240S13: glass front screen
WT24-2B420S14: sensing range max.: 30…3000mm on white (90% remission), with
timer unit: adjustable 0.6…1.3 sec, glass front screen
WT24-2V510S15: M12 male connector, 5-pin: Pin1: L+, Pin2: alarm, Pin3: M, Pin4: Q
or Q/, Pin5: test input (TI)
WT24-2R210S17: sensing range, typ. max.: 100…2000mm on white (90% remission),
operating range or background suppression: can be adjusted between about 1200…
1600mm, increased resistance in the event of extreme impact load, PG9 connector
WT24-2R250S20: PG9 connector
WT24-2R220S21: PG9 connector
WT24-2B420S22: sensing range, typ. max.: 300…900mm on white (90% remission),
operating range: can be adjusted between about 300…900mm, bonding of the wires in
the terminals, with washer for cover closure
WT24-2B410S25: M12 male connector, 4-pin: Pin1: L+, Pin2 (test input); not con‐
nected Pin3: M, Pin4: Q or Q/
WT24-2B440T01: housing is coated with Teflon
9 Troubleshooting
The Troubleshooting table indicates measures to be taken if the sensor stops working.
10 Disassembly and disposal
The sensor must be disposed of in line with applicable country-specific regulations.
When disposing of them, you should try to recycle them (especially the precious met‐
als).
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.
•
WEEE: This symbol on the product, its package or in this document,
indicates that a product is subject to these regulations.
11 Maintenance
This SICK sensor is maintenance-free.
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We do, however, recommend that the following activities are undertaken regularly:
•Clean the optical interfaces using a plastic cleaner, do not use acetone or methy‐
lated spirits.
•Check the fittings and plug connectors
No modifications may be made to devices.
Subject to change without notice. Specified product properties and technical data are
not written guarantees.
12 Technical data
Table 9: Technical data
WT24-2Bx4x
/ -2Bx5x /
-2Vx4x /
-2Vx5x
-2Rx4x /
-2Rx5x
-2Bx1x /
-2Vx1x /
-2Bx2x /
-2Vx2x
-2Rx1x /
-2Rx2x
Sensing range 100 ... 1200
mm
100 ... 1200
mm
100 ... 2500
mm
100 ... 2500
mm
Sensing range max. 100 ... 1200
mm1)
100 ... 1200
mm1)
100 ... 2500
mm1)
100 ... 2500
mm1)
Light spot size / distance Ø 40 mm
(1.200 mm)
Ø 40 mm
(1.200 mm)
Ø 80 mm
(2.500 mm)
Ø 80 mm
(2.500 mm)
Supply voltage UBDC 10 ... 30
V
AC / DC
20 ... 250
V2)
DC 10 ... 30
V
AC / DC
20 ... 250
V2)
Output current Imax. 100 mA 100 mA
Switching current (switching voltage)
Imax.
4A@250V
AC, 4A@24V
DC,
0.125A@25
0 V DC3)
4A@250V
AC, 4A@24V
DC,
0.125A@25
0 V DC3)
Switching frequency 1000 Hz4) 10 Hz 4) 1000 Hz4) 10 Hz4)
Response time ≤ 500 µs5) ≤ 10 ms5) ≤ 500 µs5) ≤ 10 ms5)
Enclosure rating6) -2B2x0,
-2B3x3,
-2V2x0: IP67
-2B4x0,
-2V5x0:
IP697)
-2R2x0,
-2R5x8,
-2R5x9:
IP67
-2B2x0,
-2B3x3,
-2V2x0: IP67
-2B4x0,
-2V5x0:
IP697)
-2R2x0,
-2R5x8,
-2R5x9:
IP67
Protection class II8) II8) II8) II8)
Circuit protection A, B, C9) A, C9) A, B, C9) A, C9)
Ambient temperature, operation –40 °C ...
+60 °C
–40 °C ...
+60 °C
–40 °C ...
+60 °C
–40 °C ...
+60 °C
1) Object with 90% remission (based on standard white DIN 5033)
2) Limit values; terminal connection: permissible wire cross-sections 0.14 to 1.5mm2; male connector:
≤4A
3) Usage category: AC-15, DC-13 (EN 60947-1)
4) With light / dark ratio 1:1
5) Signal transit time with resistive load
6) Pursuant to EN 60529
7) Replaces IP69K pursuant to ISO 20653: 2013-03
8) Rated insulation voltage Ui 250V AC, overvoltage category II
9) A = UB-Anschlüsse verpolsicher
B = Ein- und Ausgänge verpolsicher
C = Störimpulsunterdrückung
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12.1 Dimensional drawing
15
(0.59)
26
(1.02)
61 (2.40)
max. 32
(1.26)
27
(1.06)
10
(0.39)
M5
87.5 (3.44)
4.7
(0.19)
11.8
(0.46)
30 (1.18)
65 (2.56)
1
2
8
9
14
(0.55)
6.5
(0.26)
14
(0.55)
17.5
(0.69)
7
34
5
6
14,4
(0.57)
9
Figure 8: Dimensional drawing
1Alignment sight
2LED signal strength indicator
3Standard direction of the material being detected
4Center of optical axis, sender
5Center of optical axis, receiver (close range)
6Center of optical axis, receiver (far range)
7M5 threaded mounting hole, 6 mm deep
8M5 threaded mounting hole, through-hole
9M16 screw fixing and plug rotatable by 90°
13 Annex
13.1 Conformities and certificates
You can obtain declarations of conformity, certificates and the current documentation
for the product at www.sick.com. To do so, enter the product part number in the search
field (part number: see the entry in the “P/N” or “Ident. no.” field on the type label).
OPERATING INSTRUCTIONS
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BETRIEBSANLEITUNG
WT24-2
Kompakt-Lichtschranken
de
en
es
fr
it
ja
pt
ru
zh

Beschriebenes Produkt
W24-2
WT24-2
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
zulässig. Jede Änderung, Kürzung oder Übersetzung des Werks ohne ausdrückliche
schriftliche 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
BETRIEBSANLEITUNG
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de

Inhalt
1 Zu diesem Dokument............................................................................... 20
2 Zu Ihrer Sicherheit.................................................................................... 21
3 Produktbeschreibung............................................................................... 21
4 Montage.................................................................................................... 22
5 Elektrische Installation............................................................................. 22
6 Zusatzfunktionen...................................................................................... 25
7 Inbetriebnahme........................................................................................ 26
8 Geräte mit besonderen Merkmalen........................................................ 28
9 Störungsbehebung................................................................................... 29
10 Demontage und Entsorgung.................................................................... 29
11 Wartung..................................................................................................... 30
12 Technische Daten..................................................................................... 30
13 Anhang...................................................................................................... 32
BETRIEBSANLEITUNG
8008784.1DMA/2022-07-12 | SICK B E T R I E B S A N L E I T U N G | WT24-2 19
Irrtümer und Änderungen vorbehalten
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1 Zu diesem Dokument
1.1 Weiterführende Informationen
Die Produktseite finden Sie unter der SICK ProductID unter: pid.sick.com/{P/N}.
P/N entspricht der Artikelnummer des Produkts.
Folgende Informationen sind produktabhängig verfügbar:
•Datenblätter
•Dieses Dokument in allen verfügbaren Sprachversionen
•CAD-Daten und Maßzeichnungen
•Zertifikate (z.B. Konformitätserklärung)
•Weitere Publikationen
•Software
•Zubehör
1.2 Symbole und Dokumentkonventionen
Warnhinweise und andere Hinweise
GEFAHR
Weist auf eine unmittelbar gefährliche Situation hin, die zum Tod oder zu schweren
Verletzungen führt, wenn sie nicht vermieden wird.
WARNUNG
Weist auf eine möglicherweise gefährliche Situation hin, die zum Tod oder zu schweren
Verletzungen führen kann, wenn sie nicht vermieden wird.
VORSICHT
Weist auf eine möglicherweise gefährliche Situation hin, die zu mittelschweren oder
leichten Verletzungen führen kann, wenn sie nicht vermieden wird.
WICHTIG
Weist auf eine möglicherweise gefährliche Situation hin, die zu Sachschäden führen
kann, wenn sie nicht vermieden wird.
HINWEIS
Hebt nützliche Tipps und Empfehlungen sowie Informationen für einen effizienten und
störungsfreien Betrieb hervor.
Handlungsanleitung
bDer Pfeil kennzeichnet eine Handlungsanleitung.
1. Eine Abfolge von Handlungsanleitungen ist nummeriert.
2. Nummerierte Handlungsanleitungen in der gegebenen Reihenfolge befolgen.
✓Der Haken kennzeichnet ein Ergebnis einer Handlungsanleitung.
BETRIEBSANLEITUNG
20 B E T R I E B S A N L E I T U N G | WT24-2 8008784.1DMA/2022-07-12 | SICK
Irrtümer und Änderungen vorbehalten
de