SICK SureSense HTF18L Manuale utente
OPERATING INSTRUCTION
SureSense - HTF18L
Cylindrical photoelectric sensors
en / de / fr / it / pt / es / zh / ru
8017859.Z127
SICK AG, Erwin-Sick-Strasse 1, D-79183 Waldkirch
Photoelectric proximity sensor
Operating instructions
1Safety 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.
■When commissioning, protect the device from moisture and contamination.
■These operating instructions contain information required during the life cycle of
the sensor.
ATTENTION
WARNING: Interruption, manipulation or incorrect use can lead to hazardous exposure
due to laser radiation.
2 Correct use
The HTF18L is an opto-electronic photoelectric proximity sensor (referred to as "sensor"
in the following) for the optical, non-contact detection of objects. If the product is used
for any other purpose or modified in any way, any warranty claim against SICK AG shall
become void.
Photoelectric proximity sensor with foreground suppression.
Image: A
8017859 | SICK
Subject to change without notice 1
Technical data from page 54.
3 Commissioning
1 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 diagram [H] (x = sensing range, y = transition range between the set
sensing range (background) and the object as a % of the sensing range (object
remission / background remission)). Remission: 6% = black , 18% = grey ,
90% = white (referring to standard white as per DIN 5033).
The minimum distance (= y) for reliable object detection can be determined from
diagram [H] as follows:
Example: x = 100 mm, y = -5% => -5%% of 100 mm = -5 mm. That is, the distance
between the object and the background must be at least 95 mm.
0
–5
–10
–15
–20
% of sensing range
050
(1.97)
100
(3.94)
150
(5.91)
3
2
1
90%/90%
20%/90%
6%/90%
200
(7.87)
250
(9.84)
300
(11.81)
Distance in mm (inch)
Image: H
2 Mount the sensor using a suitable mounting bracket (see the SICK range of acces‐
sories).
Note the sensor's maximum permissible tightening torque of 0.56 Nm.
Note the preferred direction of the object relative to the sensor [see A].
3 The sensors must be connected in a voltage-free state (Uv = 0 V). The information
in the graphics [B] must be observed, depending on the connection type:
– Male connector connection: pin assignment
– Cable: core color
+ (L+)
Q1
Q2
brn
wht
- (M)
blu
blk
1
4
2
3
Image: B
+ (L+)
Q2
-(M)
brn
wht
blu
blk Q1
Image: B-2
+ (L+)
-(M)
Q
brn
blu
blk
1
3
4
Image: B-3
Only apply voltage/switch on the power supply (Uv > 0 V) once all electrical connec‐
tions have been established. The green LED indicator on the top of the sensor
lights up.
Explanations of the connection diagram (Graphic B):
Switching outputs Q and /Q (according to Graphic B):
Switching output Q (according to Graphic B):
HTF18L-P (PNP: load -> M)
HTF18L-N (NPN: load -> L+)
L = light switching
D = dark switching
Alarm / Health = diagnostics output (see Additional functions)
4 Align the sensor with a fixed background. You must ensure that the optical opening
(front screen) of the sensor is completely clear [see Graphic E/F].
3 COMMISSIONING
28017859 | SICK
Subject to change without notice
Image: E
5 Sensor which it is not possible to set: The sensor is set to factory settings 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.
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
Sensing range min. Sensing range max.
Set switching point
Image: F
Sensor with potentiometer:
The sensing range is adjusted relative to the background with the potentiometer
(type: 270°). Clockwise rotation: sensing range increased; counterclockwise rota‐
tion: sensing range reduced. Turn the potentiometer clockwise until the yellow LED
indicator lights up. When an object is moved into the path of the beam, the yellow
LED indicator must go out. If the yellow LED indicator remains lit when an object is
moved into the path of the beam, repeat the adjustment.
The optimum setting can be achieved and checked using the signal strength light
bar on the back of the sensor. The LEDs on the signal strength light bar light up in
relation to the object position and the set switching point. If no LEDs or only the red
LEDs light up, the object is positioned in front of the set switching point and cannot
be detected. The first yellow LED lights up when the object is behind the set switch‐
ing point. More green LEDs light up when the object is moved further away from the
sensor into the background (see graphic F).
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.
COMMISSIONING 3
8017859 | SICK
Subject to change without notice 3
Image: C
Image: G
5 Additional functions
Alarm output: The sensor (HTF18L) features a pre-failure notification output (“Q2” in
connection diagram [B], if the alarm option is selected), which issues a notification if
the signal strength of the light being received is not sufficient. Possible causes: Sensor
is contaminated, sensor is out of alignment. In the good state: LOW (UV < V); if exces‐
sively contaminated: HIGH (>+UV- V). The LED indicator flashes in this case.
Health output: The sensor (HTF18L) features a health status notification output (“Q2”
in connection diagram [B], if the health option is selected), which issues a notification if
the signal strength of the light being received is sufficient. Possible causes, if the signal
strength is not sufficient: Sensors are contaminated, sensors are out of alignment, or
cable is damaged. In the good state: HIGH (>+UV- V); if excessively contaminated or in
the event of cable interruption: LOW (UV < V). The LED indicator flashes in this case.
Time types: HTF18L with optional On-delay or Off-Delay adjustment: t0 = no time delay,
t1 = time delay when object is detected, t2 = time delay when no object is detected.
The time setting can be selected using the potentiometer according to A.
4
48017859 | SICK
Subject to change without notice
dark switching light switching
2 1 t = 1
1 2 t = 2
Timer stages can be set from 0 to 2 seconds.
Light/dark switch: The sensor is in light switching mode when optional light/dark poten‐
tiometer is rotated to the “L” position. The sensor is in dark switching mode when
optional light/dark potentiometer is rotated to the “D” position. The green power supply
LED will flash once when the mode is changed.
6 Fault diagnosis
Table indicates which measures are to be taken if the sensor stops working.
7 Table Fault diagnosis
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 connec‐
tions (cables and plug connec‐
tions) /
Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions)
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,
replace the sensor /
If the power supply is OK,
replace the sensor
Yellow LED flashes; if Health is
present then take note of the
corresponding output signal; if
Alarm is present then take note
of the corresponding output
signal /
Yellow LED flashes; if Health is
present then take note of the
corresponding output signal; if
Alarm is present then take note
of the corresponding output
signal
Sensor is still ready for opera‐
tion, but the operating condi‐
tions are not ideal/addition‐
ally with health output: power
supply interrupted /
Sensor is still ready for opera‐
tion, but the operating condi‐
tions are not ideal/addition‐
ally with health output: power
supply interrupted
Check the operating condi‐
tions: Fully align the beam of
light (light spot) with the back‐
ground. / Clean the optical
surfaces . / Readjust the sen‐
sitivity (potentiometer) /
Check sensing range and
adjust if necessary; see
graphic F. / With health out‐
put: Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions). /
Check the operating condi‐
tions: Fully align the beam of
light (light spot) with the back‐
ground. / Clean the optical
surfaces . / Readjust the sen‐
sitivity (potentiometer) /
Check sensing range and
adjust if necessary; see
graphic F. / With health out‐
FAULT DIAGNOSIS 6
8017859 | SICK
Subject to change without notice 5
LED indicator/fault pattern /
LED indicator/fault pattern
Cause /
Cause
Measures /
Measures
put: Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions).
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).
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
68017859 | SICK
Subject to change without notice
Reflexions-Lichttaster
Betriebsanleitung
10 Sicherheitshinweise
■Vor der Inbetriebnahme die Betriebsanleitung lesen.
■Anschluss, Montage und Einstellung nur durch Fachpersonal.
■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.
ACHTUNG
ACHTUNG: Eingriffe oder Manipulationen oder nicht bestimmungsgemäße Verwendung
kann zu gefährlicher Belastung durch Laser-Lichtstrahlung führen.
11 Bestimmungsgemäße Verwendung
Die HTF18L ist ein optoelektronischer Reflexions-Lichttaster (im Folgenden Sensor
genannt) und wird zum optischen, berührungslosen Erfassen von Sachen eingesetzt.
Bei jeder anderen Verwendung und bei Veränderungen am Produkt verfällt jeglicher
Gewährleistungsanspruch gegenüber der SICK AG.
Reflexionslichttaster mit Vordergrundausblendung.
Abb.: A
8017859 | SICK
Subject to change without notice 7
Technische Daten ab Seite 54.
12 Inbetriebnahme
1 Einsatzbedingungen prüfen: Schaltabstand und Distanz zum Objekt bzw. Hinter‐
grund sowie Remissionsvermögen des Objektes mit dem zugehörigen Diagramm
[vgl. H] abgleichen (x = Schaltabstand, y = Übergangsbereich zwischen eingestell‐
tem Schaltabstand (Hintergrund) und Objekt in % des Schaltabstands (Remission
Objekt / Remission Hintergrund)). Remission: 6 % = schwarz , 18 % = grau ,
90 % = weiß (bezogen auf Standardweiß nach DIN 5033).
Die minimale Distanz (= y) für die zuverlässige Objekterkennung kann aus dem
Diagramm [vgl. H] wie folgt ermittelt werden:
Beispiel: x = 100 mm, y = -5% => -5% % von 100 mm = -5 mm. D. h. die Distanz
zwischen Objekt und Hintergrund muss mind. 95 mm betragen.
0
–5
–10
–15
–20
% of sensing range
050
(1.97)
100
(3.94)
150
(5.91)
3
2
1
90%/90%
20%/90%
6%/90%
200
(7.87)
250
(9.84)
300
(11.81)
Distance in mm (inch)
Abb.: H
2 Den Sensor an einen geeigneten Befestigungswinkel montieren (siehe SICK-Zube‐
hör-Programm).
Maximal zulässiges Anzugsdrehmoment des Sensors von 0.56 Nm beachten.
Vorzugsrichtung des Objektes zum Sensor beachten [vgl. A].
3 Anschluss der Sensoren muss spannungsfrei (UV = 0 V) erfolgen. Je nach
Anschlussart sind die Informationen in den Grafiken [vgl. B] zu beachten:
– Steckeranschluss: Pinbelegung
– Leitung: Adernfarbe
+ (L+)
Q1
Q2
brn
wht
- (M)
blu
blk
1
4
2
3
Abb.: B
+ (L+)
Q2
-(M)
brn
wht
blu
blk Q1
Abb.: B-2
+ (L+)
-(M)
Q
brn
blu
blk
1
3
4
Abb.: B-3
Erst nach Anschluss aller elektrischen Verbindungen die Spannungsversorgung (UV
> 0 V) anlegen bzw. einschalten. Am Sensor leuchtet die grüne Anzeige-LED auf der
Sensor-Oberseite.
Erläuterungen zum Anschlussschema (Grafik B):
Schaltausgänge Q bzw. /Q (gemäß Grafik B):
Schaltausgang Q (gemäß Grafik B):
HTF18L-P (PNP: Last -> M)
HTF18L-N (NPN: Last -> L+)
L = hellschaltend
D = dunkelschaltend
Alarm / Health = Diagnoseausgang (siehe Zusatzfunktionen)
4 Sensor auf feststehenden Hintergrund ausrichten. Es ist darauf zu achten, dass die
optische Öffnung (Frontscheibe) des Sensors vollständig frei ist [vgl. Grafik E/F].
12 INBETRIEBNAHME
88017859 | SICK
Subject to change without notice
Abb.: E
5 Sensor ohne Einstellmöglichkeit: Sensor ist werksseitig eingestellt und betriebsbe‐
reit.
Zur Überprüfung der Funktion Grafik C und G heranziehen. Verhält sich der Schalt‐
ausgang nicht gemäß Grafik C, Einsatzbedingungen prüfen. Siehe Abschnitt Fehler‐
diagnose.
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
0 %
100 %
Sensing range min. Sensing range max.
Set switching point
Abb.: F
Sensor mit Potentiometer:
Mit dem Potentiometer (Art: 270°) wird der Schaltabstand auf den Hintergrund
eingestellt. Drehung nach rechts: Erhöhung des Schaltabstandes, Drehung nach
links: Verringerung des Schaltabstandes. Potentiometer nach rechts drehen bis die
gelbe Anzeige-LED leuchtet. Wenn ein Objekt in den Strahlengang eingeführt wird,
muss die gelbe Anzeige-LED erlöschen. Wenn die gelbe Anzeige-LED bei einfahren‐
dem Objekt immer noch leuchtet, Einstellung wiederholen.
Die optimale Einstellung kann mit Hilfe der Anzeige der Signalstärke auf der Sen‐
sor-Rückseite erreicht und geprüft werden. Die LEDs auf der Anzeige der Signal‐
stärke leuchten in Abhängigkeit von der Objektposition und dem eingestellten
Schaltpunkt. Leuchtet keine LED oder nur die roten LEDs, ist das Objekt vor dem
eingestellten Schaltpunkt positioniert und kann nicht detektiert werden. Die erste
gelbe LED leuchtet, wenn das Objekt hinter dem eingestellten Schaltpunkt liegt.
Weitere grüne LEDs leuchten, wenn das Objekt weiter vom Sensor in den Hinter‐
grund bewegt wird (vgl. Grafik F).
Sensor ist eingestellt und betriebsbereit. Zur Überprüfung der Funktion Grafik C
und G heranziehen. Verhält sich der Schaltausgang nicht gemäß Grafik C, Einsatz‐
bedingungen prüfen. Siehe Abschnitt Fehlerdiagnose.
INBETRIEBNAHME 12
8017859 | SICK
Subject to change without notice 9
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