O P E R A T I N G I N S T R U C T I O N
WL23-2
Compact photoelectric sensor
en / de / fr / it / pt / es / zh / ja / ru
SICK AG, Erwin-Sick-Strasse 1, D-79183 Waldkirch
8015975.YHN1
Photoelectric retro-reflective 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. Adapters listed by UL
with connection 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 WL23-2 is an opto-electronic photoelectric retro-reflective sensor (referred to as
"sensor" in the following) for the optical, non-contact detection of objects, animals, and
persons. A reflector is required for this product to function. If the product is used for
any other purpose or modified in any way, any warranty claim against SICK AG shall be‐
come void.
3 Commissioning
1 Adjust the distance between the sensor and the reflector according to the corre‐
sponding diagram [H] (x = sensing range, y = operating reserve).
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1
Image: H
2 Mount the sensor and the reflector using suitable mounting brackets (see the SICK
range of accessories). Align the sensor and reflector with each other.
Note the sensor's maximum permissible tightening torque of 1.3 Nm Nm.
3 The sensors must be connected in a voltage-free state (U
v
= 0 V). The information
in the graphics [B] must be observed, depending on the connection type:
–
Male connector connection: pin assignment
– Cable: core color
Only apply voltage/switch on the power supply (U
v
> 0 V) once all electrical connec‐
tions have been established. 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):
WL23-2P/K (PNP: load -> M)
WL23-2N (NPN: load -> L+)
WL23-2S (relay output)
Q:
light switching, object will not be detected, relay active
4
Align the sensor with a suitable reflector. Select the position so that the red emit‐
ted light beam hits the center of the reflector. The sensor must have a clear view of
the reflector, with no object in the path of the beam [see E]. You must ensure that
the optical openings of the sensor and reflector are completely clear.
3 COMMISSIONING
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Image: E
5 Sensor which it is not possible to set (WL23-2Xxxx0): The sensor is adjusted and
ready for operation.
After alignment is complete, move a non-transparent object into the path of the be‐
am. 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.
Sensor with teach-in button (WL23-2Xxxx2):
As a rule, it is not necessary to teach-in the sensor.
A lower operating reserve may be necessary for depolarizing surfaces (e.g., tape).
The sensitivity is adjusted according to Table J by pressing the teach-in button. Do
not operate the teach-in button using sharp objects.
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.
Image: C
COMMISSIONING 3
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Image: G
Teach-in mo‐
de for ob‐
jects /
Teach-in mo‐
de for ob‐
jects
Teach-in
time /
Teach-in time
Alignment /
Alignment
LED indica‐
tor /
LED indicator
Operating re‐
serve /
Operating re‐
serve
1 > 2 ... < 4 s Sensor to re‐
flector /
Sensor to re‐
flector
2
2 > 8 s Sensor to re‐
flector /
Sensor to re‐
flector
1.1
3 > 2 ... < 4 s Sensor to out‐
side, not to re‐
flector /
Sensor to out‐
side, not to re‐
flector
> 4
5 Fault diagnosis
Table indicates which measures are to be taken if the sensor stops working.
6 Devices with special features
WL23-2P2430S01: Sensing range max.: 0.1 to 4 m / PL80A, response time: ≤ 3.5 ms,
switching frequency: 150 Hz
WL23-2P2432S02: Sensing range max.: 0.1 to 15 m/PL80A, type of light: red light,
PinPoint LED, light spot diameter: approx. 160 mm at 16 m distance, response time:
≤ 1 ms, switching frequency: 500 Hz
WL23-2K2462S03: Sensing range max.: 0.1 to 15 m/PL80A, type of light: red light,
PinPoint LED, light spot diameter: approx. 160 mm at 16 m distance, response time:
≤ 1 ms, switching frequency: 500 Hz, PNP, pin 1: L+, pin 2: not connected, pin 3: M, pin
4: Q/
WL23-2P2460S04: Sensing range max.: 900 mm / diamond grade reflective tape, light
spot diameter: approx. 10 mm at 900 mm distance
4
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7 Fault diagnosis table
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
WT(B)23-2: Yellow LED fla‐
shes /
WT(B)23-2: 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 re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H. /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H.
WTE23-2: Yellow LED flashes
(only briefly) /
WTE23-2: Yellow LED flashes
(only briefly)
Teach-in mode /
Teach-in mode
Check the teach-in mode /
Check the teach-in mode
Signal interruptions when ob‐
ject is detected /
Signal interruptions when ob‐
ject is detected
Depolarizing property of the
object surface (e.g., tape), re‐
flection /
Reduce sensitivity or change
the position of the sensor /
Reduce sensitivity or change
the position of the sensor
FAULT DIAGNOSIS TABLE 7
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LED indicator/fault pattern /
LED indicator/fault pattern
Cause /
Cause
Measures /
Measures
Depolarizing property of the
object surface (e.g., tape), re‐
flection
8 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).
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.
8 DISASSEMBLY AND DISPOSAL
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Abb.: C
Abb.: G
Teach-in-Mo‐
dus für Ob‐
jekte /
Teach-in mo‐
de for ob‐
jects
Teach-in-Zeit /
Teach-in time
Ausrichtung /
Alignment
Anzeige-LED /
LED indicator
Funktionsre‐
serve /
Operating re‐
serve
1 > 2 ... < 4 s Sensor auf Re‐
flektor /
Sensor to re‐
flector
2
2 > 8 s Sensor auf Re‐
flektor /
Sensor to re‐
flector
1.1
3 > 2 ... < 4 s Sensor ins
Freie, nicht
auf Reflektor /
Sensor to out‐
side, not to re‐
flector
> 4
13
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Anzeige-LED / Fehlerbild /
LED indicator/fault pattern
Ursache /
Cause
Maßnahme /
Measures
fik H. / Abstand zwischen Sen‐
sor und Reflektor ist zu groß /
H. /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H.
WTE23-2: gelbe LED blinkt (nur
kurz) /
WTE23-2: Yellow LED flashes
(only briefly)
Teach-Modus /
Teach-in mode
Teach-Modus überprüfen /
Check the teach-in mode
Signalunterbrechungen bei Ob‐
jektdetektion /
Signal interruptions when ob‐
ject is detected
Depolarisierende Eigenschaft
der Objektoberfläche (z. B. Fo‐
lie), Umspiegelung /
Depolarizing property of the
object surface (e.g., tape), re‐
flection
Empfindlichkeit reduzieren
oder Sensorposition verän‐
dern /
Reduce sensitivity or change
the position of the sensor
17 Demontage und Entsorgung
Die Entsorgung des Sensors hat gemäß den länderspezifisch anwendbaren Vorschrif‐
ten zu erfolgen. Für die enthaltenen Wertstoffe (insbesondere Edelmetalle) ist im Rah‐
men der Entsorgung eine Verwertung anzustreben.
18 Wartung
SICK-Sensoren sind wartungsfrei.
Wir empfehlen, in regelmäßigen Abständen
•
die optischen Grenzflächen zu reinigen
•
Verschraubungen und Steckverbindungen zu überprüfen
Veränderungen an Geräten dürfen nicht vorgenommen werden.
Irrtümer und Änderungen vorbehalten. Angegebene Produkteigenschaften und techni‐
sche Daten stellen keine Garantieerklärung dar.
17 DEMONTAGE UND ENTSORGUNG
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LED d'état / image du défaut /
LED indicator/fault pattern
Cause /
Cause
Mesure /
Measures
le schéma et H. / La distance
entre le capteur et le réflec‐
teur est trop grande / H. /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H.
WTE23-2 : La LED jaune cligno‐
te (brièvement) /
WTE23-2 : Yellow LED flashes
(only briefly)
Mode apprentissage /
Teach-in mode
Contrôler le mode apprentis‐
sage /
Check the teach-in mode
Coupures de signal lors de dé‐
tection d'objet /
Signal interruptions when ob‐
ject is detected
Propriété dépolarisante de la
surface de l'objet (par ex.
film), réflexions /
Depolarizing property of the
object surface (e.g., tape), re‐
flection
Réduire la sensibilité ou chan‐
ger la position du capteur /
Reduce sensitivity or change
the position of the sensor
26 Démontage et mise au rebut
La mise au rebut du capteur doit respecter la réglementation nationale en vigueur.
Dans le cadre de la mise au rebut, veiller à recycler les matériaux (notamment les mé‐
taux précieux).
27 Maintenance
Les capteurs SICK ne nécessitent aucune maintenance.
Nous vous recommandons de procéder régulièrement
•
au nettoyage des surfaces optiques
•
au contrôle des vissages et des connexions enfichables
Ne procéder à aucune modification sur les appareils.
Sujet à modification sans préavis. Les caractéristiques du produit et techniques four‐
nies ne sont pas une déclaration de garantie.
26 DÉMONTAGE ET MISE AU REBUT
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Image: C
Image: G
Modo Teach-
in para obje‐
tos /
Teach-in mo‐
de for ob‐
jects
Tempo de
Teach-in /
Teach-in time
Alinhamento /
Alignment
Indicador
LED /
LED indicator
Reserva de
função /
Operating re‐
serve
1 > 2 ... < 4 s Sensor ao re‐
fletor /
Sensor to re‐
flector
2
2 > 8 s Sensor ao re‐
fletor /
Sensor to re‐
flector
1.1
3 > 2 ... < 4 s Sensor ao es‐
paço livre, não
ao refletor /
Sensor to out‐
side, not to re‐
flector
> 4
31
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Indicador LED / padrão de er‐
ro /
LED indicator/fault pattern
Causa /
Cause
Medida /
Measures
comutação, ver gráfico H. /
Distância entre sensor e refle‐
tor é grande demais / H. /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H.
WTE23-2: LED amarelo intermi‐
tente (apenas rapidamente) /
WTE23-2: Yellow LED flashes
(only briefly)
Modo Teach /
Teach-in mode
Verificar o modo Teach /
Check the teach-in mode
Interrupções de sinal na detec‐
ção de objetos /
Signal interruptions when ob‐
ject is detected
Propriedade despolarizante
da superfície do objeto (por
ex., película), reflexos de su‐
perfície /
Depolarizing property of the
object surface (e.g., tape), re‐
flection
Reduzir a sensibilidade ou
modificar a posição do sen‐
sor /
Reduce sensitivity or change
the position of the sensor
35 Desmontagem e descarte
O descarte do sensor deve ser efetuado de acordo com as normas aplicáveis específi‐
cas de cada país. No âmbito do descarte, deve-se procurar o aproveitamento dos ma‐
teriais recicláveis contidos (principalmente dos metais nobres).
36 Manutenção
Os sensores SICK não requerem manutenção.
Recomendamos que se efetue em intervalos regulares
•
uma limpeza das superfícies ópticas
•
uma verificação das conexões roscadas e dos conectores
Não são permitidas modificações no aparelho.
Sujeito a alterações sem aviso prévio. As propriedades do produto e os dados técnicos
especificados não constituem nenhum certificado de garantia.
35 DESMONTAGEM E DESCARTE
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Image: C
Image: G
Modalità
Teach-in per
oggetti /
Teach-in mo‐
de for ob‐
jects
Tempo Teach-
in /
Teach-in time
Direzione /
Alignment
Indicatore -
LED /
LED indicator
Riserva di fun‐
zionamento /
Operating re‐
serve
1 > 2 ... < 4 s Orientare il
sensore sul ri‐
spettivo riflet‐
tore /
Sensor to re‐
flector
2
2 > 8 s Orientare il
sensore sul ri‐
spettivo riflet‐
tore /
Sensor to re‐
flector
1.1
3 > 2 ... < 4 s Orientare il
sensore verso
l'esterno, non
sul riflettore /
> 4
40
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Indicatore LED / figura di erro‐
re /
LED indicator/fault pattern
Causa /
Cause
Provvedimento /
Measures
WT(B)23-2: Il LED giallo lam‐
peggia /
WT(B)23-2: Yellow LED flashes
Il sensore è ancora pronto per
il funzionamento, ma le condi‐
zioni di esercizio non sono ot‐
timali /
Sensor is still ready for opera‐
tion, but the operating conditi‐
ons are not ideal
Controllare le condizioni di
esercizio: Dirigere il raggio di
luce (il punto luminoso) com‐
pletamente sul riflettore / Pu‐
lizia delle superfici ottiche
(sensore e riflettore) / Sensi‐
bilità reimpostare il (Teach) /
se il riflettore non è adatto per
l'applicazione selezionata (si
consiglia, di usare esclusiva‐
mente riflettori SICK) / con‐
trollare la distanza di commu‐
tazione e, se necessario, adat‐
tarla, vedi grafico H. / La dis‐
tanza tra sensore e riflettore è
troppo grande / H. /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H.
WTE23-2: il LED giallo lampeg‐
gia (solo brevemente) /
WTE23-2: Yellow LED flashes
(only briefly)
Modalità Teach /
Teach-in mode
Verificare la modalità Teach /
Check the teach-in mode
Interruzioni di segnale al mo‐
mento del rilevamento dell'og‐
getto /
Signal interruptions when ob‐
ject is detected
Proprietà depolarizzante della
superficie dell'oggetto (ad es.
pellicola), riflesso /
Depolarizing property of the
object surface (e.g., tape), re‐
flection
Ridurre la sensibilità o variare
la posizione del sensore /
Reduce sensitivity or change
the position of the sensor
44 Smontaggio e smaltimento
Lo smaltimento del sensore deve avvenire conformemente alle direttive previste speci‐
ficatamente dal paese. Per i materiali riciclabili in esso contenuti (in particolare metalli
nobili) si auspica un riciclaggio nell'ambito dello smaltimento.
45 Manutenzione
I sensori SICK sono esenti da manutenzione.
A intervalli regolari si consiglia di
•
pulire le superfici limite ottiche
•
Verificare i collegamenti a vite e gli innesti a spina
44 SMONTAGGIO E SMALTIMENTO
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LED indicador / imagen de er‐
ror /
LED indicator/fault pattern
Causa /
Cause
Acción /
Measures
conmutación y, si es necesa‐
rio, adaptarla, véase Figura H.
La distancia entre el sensor y
el reflector es excesiva / H. /
Check the operating conditi‐
ons: Fully align the beam of
light (light spot) with the re‐
flector. / Clean the optical sur‐
faces (sensor and reflector). /
Readjust the sensitivity
(teach-in) / Reflector is not
suitable for the application in
question (we recommend only
using SICK reflectors) / Check
sensing range and adjust if
necessary; see graphic H. /
Distance between the sensor
and the reflector is too long /
H.
WTE23-2: El LED amarillo par‐
padea (solo brevemente) /
WTE23-2: Yellow LED flashes
(only briefly)
Modo de aprendizaje
(Teach) /
Teach-in mode
Comprobar el modo de apren‐
dizaje /
Check the teach-in mode
Interrupciones de la señal al
detectar objetos /
Signal interruptions when ob‐
ject is detected
Propiedad despolarizante de
la superficie del objeto (p. ej.,
lámina plástica), reflexión /
Depolarizing property of the
object surface (e.g., tape), re‐
flection
Reducir la sensibilidad o mo‐
dificar la posición del sensor /
Reduce sensitivity or change
the position of the sensor
53 Desmontaje y eliminación
El sensor tiene que eliminarse siguiendo la normativa aplicable específica de cada pa‐
ís. Los materiales valiosos que contenga (especialmente metales nobles) deben ser eli‐
minados considerando la opción del reciclaje.
54 Mantenimiento
Los sensores SICK no precisan mantenimiento.
A intervalos regulares, recomendamos:
•
Limpiar las superficies ópticas externas
•
Comprobar las uniones roscadas y las conexiones.
No se permite realizar modificaciones en los aparatos.
Sujeto a cambio sin previo aviso. Las propiedades y los datos técnicos del producto no
suponen ninguna declaración de garantía.
DESMONTAJE Y ELIMINACIÓN 53
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物体示教模
式 /
Teach-in
mode for
objects
示教时间 /
Teach-in time
校准 /
Alignment
LED 指示灯 /
LED indicator
信号冗余 /
Operating re‐
serve
1 > 2 ... < 4 s 传感器至反射
器 /
Sensor to re‐
flector
2
2 > 8 s 传感器至反射
器 /
Sensor to re‐
flector
1.1
3 > 2 ... < 4 s 传感器朝向外
部，不指向反
射器 /
Sensor to
outside, not
to reflector
> 4
59 故障诊断
表 I 中罗列了传感器无法执行某项功能时应采取的各项措施。
60 具有特殊功能的设备
WL23-2P2430S01：开关距离最大：0.1 ... 4 m / PL80A，响应时间：≤ 3.5 ms，
开关频率：150 Hz
WL23-2P2432S02
：开关距离最大：0.1…15 m / PL80A，光源类型：红光，Pin‐
Point LED，光斑直径：16 m 距离内为大约 160 mm，响应时间：≤ 1 ms，开关频
率：500 Hz
WL23-2K2462S03：开关距离最大：01 ... 15 m / PL80A，光源类型：红光，Pin‐
Point-LED，光斑直径：16 m 距离内为大约 160 mm，响应时间：≤ 1 ms，开关频
率 500 Hz，PNP，Pin1：L+，Pin2：未连接，Pin3：M，Pin4：Q/
WL23-2P2460S04：开关距离最大：900 mm / Diamond Grade 薄膜，光斑直
径：900 mm 距离内为大约 10 mm
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61 故障诊断表格
LED 指示灯 / 故障界面 /
LED indicator/fault pattern
原因 /
Cause
措施 /
Measures
绿色 LED 未亮起 /
Green LED does not light up
无电压或电压低于极限值 /
No voltage or voltage be‐
low the limit values
检查电源，检查整体电气连
接（导线和插头连接） /
Check the power supply,
check all electrical connec‐
tions (cables and plug con‐
nections)
绿色 LED 未亮起 /
Green LED does not light up
电压中断 /
Voltage interruptions
确保电源稳定无中断 /
Ensure there is a stable
power supply without inter‐
ruptions
绿色 LED 未亮起 /
Green LED does not light up
传感器损坏 /
Sensor is faulty
如果电源正常，则更换传感
器 /
If the power supply is OK,
replace the sensor
WT(B)23-2： ，黄色 LED 闪
烁 /
WT(B)23-2： Yellow LED fla‐
shes
尽管传感器准备就绪，但运
行条件不佳 /
Sensor is still ready for ope‐
ration, but the operating
conditions are not ideal
检查运行条件： 光束（光
斑）完全对准反射器 / 清洁
光学表面（传感器和反射
器） / 重新设置灵敏度（示
教） / 反射器不适用于所选
应用（我们建议仅使用 SICK
反射器） / 检查开关距离，
必要时调整；参见图 H. / 传
感器和反射器之间的间距过
大 / H. /
Check the operating condi‐
tions: Fully align the beam
of light (light spot) with the
reflector. / Clean the optical
surfaces (sensor and reflec‐
tor). / Readjust the sensitivi‐
ty (teach-in) / Reflector is
not suitable for the applica‐
tion in question (we recom‐
mend only using SICK re‐
flectors) / Check sensing
range and adjust if neces‐
sary; see graphic H. / Dis‐
tance between the sensor
and the reflector is too
long / H.
WTE23-2： 黄色 LED 闪烁
（非常短暂） /
WTE23-2： Yellow LED fla‐
shes (only briefly)
示教模式 /
Teach-in mode
检查示教模式 /
Check the teach-in mode
探测物体时信号中断 /
Signal interruptions when
object is detected
物体表面的去极化特性（例
如：薄膜），折射 /
Depolarizing property of the
object surface (e.g., tape),
reflection
降低灵敏度或更改传感器位
置 /
Reduce sensitivity or
change the position of the
sensor
61 故障诊断表格
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Image: C
Image: G
対象物のた
めのティー
チインモー
ド /
Teach-in
mode for
objects
ティーチイン
時間 /
Teach-in time
光軸調整 /
Alignment
LED 表示灯 /
LED indicator
動作余裕度 /
Operating re‐
serve
1 > 2 ... < 4 秒 センサをリフ
レクタに /
Sensor to re‐
flector
2
2 > 8 秒 センサをリフ
レクタに /
Sensor to re‐
flector
1.1
3 > 2 ... < 4 秒 センサを外部
に（リフレク
タではな
い） /
Sensor to
outside, not
to reflector
> 4
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68 故障診断
表 I は、センサが機能しなくなった場合に、どのような対策を講じるべきかを示
しています。
69 特別な特徴を持つ機器
WL23-2P2430S01: 最大検出距離: 0.1 ... 4 m / PL80A、応答時間: ≤ 3.5 ms、ス
イッチング周波数: 150 Hz
WL23-2P2432S02: 最大検出距離: 0.1 ... 15 m / PL80A、光の種類: 赤色光、ピン
ポイント LED、投光のスポット径: 約 160 mm (距離 16 m)、応答時間: ≤ 1 ms、
スイッチング周波数: 500 Hz
WL23-2K2462S03: 最大検出距離: 0.1 ... 15 m / PL80A、光の種類: 赤色光、ピン
ポイント LED、投光のスポット径: 約 160 mm (距離 16 m)、応答時間: ≤ 1 ms、
スイッチング周波数: 500 Hz、PNP、ピン 1: L+、ピン 2: 未接続、ピン 3: M、
Pin4: Q/
WL23-2P2460S04: 最大検出距離: 900 mm / Diamond Grade フィルム、投光ス
ポット径: 約 10 mm (距離 900 mm)
70 故障診断表
LED 表示灯/故障パターン /
LED indicator/fault pattern
原因 /
Cause
対策 /
Measures
緑色の LED が点灯しない /
Green LED does not light up
無電圧、または電圧が限界
値以下 /
No voltage or voltage be‐
low the limit values
電源を確認し、すべての電
気接続（ケーブルおよびプ
ラグ接続）を確認します /
Check the power supply,
check all electrical connec‐
tions (cables and plug con‐
nections)
緑色の LED が点灯しない /
Green LED does not light up
電圧がきていない又は不安
定 /
Voltage interruptions
安定した電源電圧が供給さ
れていることを確認します /
Ensure there is a stable
power supply without inter‐
ruptions
緑色の LED が点灯しない /
Green LED does not light up
センサの異常 /
Sensor is faulty
電源に問題がなければ、セ
ンサを交換します /
If the power supply is OK,
replace the sensor
WT(B)23-2: 黄色い LED が点
滅 /
WT(B)23-2: Yellow LED fla‐
shes
センサの動作準備はまだ整
っているが、動作条件が最
適ではない /
Sensor is still ready for ope‐
ration, but the operating
conditions are not ideal
動作条件を確認します： 投
光光軸 (投光スポット) をリ
フレクタに完全に合わせま
す。 / 光学面の洗浄(センサ
およびリフレクタ) / 感度を
再調整する（ティーチイ
ン） / このリフレクタは本
アプリケーションに適して
いません（SICK 製リフレク
タのみ使用することをお勧
めします） / 検出距離を点
検し必要に応じて調整す
る、グラフ H 参照。 / セン
サとリフレクタの間隔が長
すぎる / H. /
68 故障診断
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LED 表示灯/故障パターン /
LED indicator/fault pattern
原因 /
Cause
対策 /
Measures
Check the operating condi‐
tions: Fully align the beam
of light (light spot) with the
reflector. / Clean the optical
surfaces (sensor and reflec‐
tor). / Readjust the sensitivi‐
ty (teach-in) / Reflector is
not suitable for the applica‐
tion in question (we recom‐
mend only using SICK re‐
flectors) / Check sensing
range and adjust if neces‐
sary; see graphic H. / Dis‐
tance between the sensor
and the reflector is too
long / H.
WTE23-2: 黄色の LED が点
滅（一時的に） /
WTE23-2: Yellow LED fla‐
shes (only briefly)
ティーチインモード /
Teach-in mode
ティーチインモードを確認
します /
Check the teach-in mode
対象物検出時の出力信号が不
安定 /
Signal interruptions when
object is detected
反射に偏りのある対象物表
面（例：テープ等）からの
反射光を無くします /
Depolarizing property of the
object surface (e.g., tape),
reflection
感度を下げるか、またはセ
ンサの位置を変えて下さい /
Reduce sensitivity or
change the position of the
sensor
71
解体および廃棄
センサは必ず該当国の規制にしたがって処分してください。廃棄処理の際には、
できるだけ構成材料をリサイクルするよう努めてください（特に貴金属類）。
72 メンテナンス
SICK センサはメンテナンスフリーです。
定期的に以下を行うことをお勧めしています：
•
レンズ境界面の清掃
•
ネジ締結と差込み締結の点検
機器を改造することは禁止されています。
記載内容につきましては予告なしに変更する場合がございますのであらかじめご
了承ください。指定された製品特性および技術データは保証書ではありません。
解体および廃棄 71
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