SICK W24-2 User manual

OPERATING INSTRUCTIONS
WT24-2
Compact photoelectric sensors
en, de, fr, pt, it, es, zh, ja, ru

OPERATING INSTRUCTIONS
WT24-2
Compact photoelectric sensors
en, de, fr, pt, it, es, zh, ja, ru
de
en
es
fr
it
ja
pt
ru
zh

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 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.
8008784.Z474 | SICK
Subject to change without notice 3

Contents
1 safety notes........................................................................................ 5
2 Correct use......................................................................................... 5
3 Operating and status indicators...................................................... 5
4 Mounting............................................................................................. 6
5 Electrical installation........................................................................ 6
5.1 DC.............................................................................................................. 7
5.2 AC/DC........................................................................................................ 9
6 Commissioning.................................................................................. 10
7 Devices with special features.......................................................... 12
8 Troubleshooting................................................................................. 13
9 Disassembly and disposal............................................................... 14
10 Maintenance...................................................................................... 14
11 Technical data.................................................................................... 14
CONTENTS
48008784.Z474 | SICK
Subject to change without notice

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.
■Power supply: Class 2
UL Environmental Rating: 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 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 Operating and status indicators
Photoelectric proximity sensor with background suppression.
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 1: 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)
8008784.Z474 | SICK
Subject to change without notice 5

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°
Table 1: Display and operating elements
WT24-2Bx2x, -2Vx2x, -2Bx5x,
-2Vx5x
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‐
ing the 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
WT24-2Bx1x, -2Vx1x, -2Bx4x,
-2Vx4x
PNP
NPN
D
H
1.0
1
2
3
4
1Yellow LED indicator
2Potentiometer: adjust‐
ing the sensing range
3Switch: light (L) / dark
(D)
4Switch: NPN / PNP
WT24-2Rx2x, -2Rx5x
t2
t2
t1
t1
t1+ t2
t0
D
H
1.0
1
2
3
5
4
6
1Yellow LED indicator
2Potentiometer: adjust‐
ing the 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
WT24-2Rx1x, -2Rx4x
D
H
1.0
1
2
3
1Yellow LED indicator
2Potentiometer: adjust‐
ing the 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. figure 1.
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: 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 table 6. Retighten
M16 connector with seal so that the IP enclosure rating of the device is ensured.
3 OPERATING AND STATUS INDICATORS
68008784.Z474 | SICK
Subject to change without notice

Figure 2: Opening the sensor Figure 3: Electrical connection
Only apply voltage/switch on the voltage supply (UV > 0 V) once all electrical connec‐
tions 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 table 4)
n. c. = not connected
NC = normally closed
NO = normally open
Q / Q = switching outputs
TE / Test = test input (see table 2 and table 5)
5.1 DC
DC: 10 ... 30 V DC, see „Technical data“, page 14
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 -
1 2 3 4 5
0.14 ...
1.5 mm2
1 2 3 4 5
0.14 ...
1.5 mm2
12
4 3
12
5
4 3
12
5
4 3
12
4 3
ELECTRICAL INSTALLATION 5
8008784.Z474 | SICK
Subject to change without notice 7

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)
Table 4: Alarm
Alarm (≤ 100 mA)
+ (L+)
Alarm
– (M)
+ (L+)
Alarm
– (M)
5 ELECTRICAL INSTALLATION
88008784.Z474 | SICK
Subject to change without notice

Table 5: Test
Test
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
5.2 AC/DC
AC/DC: 20 V ... 250 V AC/DC, see „Technical data“, page 14
Table 6: 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
3
4
15
2
≤ 4 A
3
4
1
5
2
≤ 4 A
ELECTRICAL INSTALLATION 5
8008784.Z474 | SICK
Subject to change without notice 9

Table 7: AC/DC relay
Relay
H
D
3WT24-2R2x0
H
3
4
5
3
4
5
AC/DC
<4 A (250 V AC)
<4 A (24 V DC)
<0.11 A (250 V
DC)
D
3
4
5
3
4
5
AC/DC
<4 A (250 V AC)
<4 A (24 V DC)
<0.11 A (250 V
DC)
6 Commissioning
1Alignment
WT24-2Xx4x, -2Xx5x: align sensor on 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 4].
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 4 and table 3 and table 7. You must ensure that the optical
opening (front screen) of the sensor is completely clear.
Figure 4: Alignment Figure 5: Alignment 2
2Sensing range
Check the application conditions: Adjust the sensing range and distance to the object or
background and the remission capability of the object according to the corresponding dia‐
gram [see figure 6 and figure 7] (x = sensing range, y = transition range between the set
sensing range and suppression of the background as a % of the sensing range (object
remission/background remission)). Remission: 6% = black 1, 18% = gray 2, 90% = white
3 (referring to standard white as per DIN 5033). We recommend making the adjustments
using an object with a low remission.
6 COMMISSIONING
10 8008784.Z474 | SICK
Subject to change without notice