SICK GRTE18 User manual
GRTE18
Operating Instruction
DE/EN/FR/PT/IT/ES/ZH/JA/RU
8016953
OPERATING INSTRUCTION
Photoelectric proximity sensor
Operating instructions
2 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. Only for use in appli‐
cations in accordance with NFPA 79. UL-listed adapters with connecting 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.
3 Correct use
The GRTE18 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.
Energetic photoelectric proximity sensor
Image 1: GRTE18-xxxx2
Image 2: GRTE18-xxxx7
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4 Commissioning
1 Check the application conditions: Adjust the sensing range and the remission capability of
the object according to the corresponding diagram [H] (x = sensing range, y = operating
reserve).
During this process, an object can only be detected in front of a background if the remission
capability of the object is significantly higher than that of the background or if the distance
between the object and the background is sufficiently long.
Image 3: H: Sensing range 115 mm
1) Sensing range on black, 6 % remission
2) Sensing range on gray, 20 % remission
3) Sensing range on white, 90 % remission
Image 4: H: Sensing range 550 mm
1) Sensing range on black, 6 % remission
Commissioning
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2) Sensing range on gray, 20 % remission
3) Sensing range on white, 90 % remission
Image 5: H: Sensing range 800 mm
1) Sensing range on black, 6 % remission
2) Sensing range on gray, 20 % remission
3) Sensing range on white, 90 % remission
2 Mount the sensor using a suitable mounting bracket (see the SICK range of accessories).
Observe the maximum permissible tightening torque of the sensor of 2.0 Nm for metal/0.9
Nm for plastic [K].
Image: K: GRTE18-x24x7
Commissioning
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Image: K: GRTE18-x24x2
3 The sensors must be connected in a voltage-free state (VS = 0 V). The information in the gra‐
phics [B] must be observed, depending on the type of connection:
– Male connector connection: pin assignment
– Cable: core color
Image: B: GRTE18-x24xx
Image: B: GRTE18-x11xx
Only apply voltage/switch on the power supply (VS > 0 V) once all electrical connections have
been completed. 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):
GRTE18-P (PNP: load -> M)
GRTE18-N (NPN: load -> L+)
4 Align the sensor with the 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 sen‐
sor is completely clear [E].
Image 6: E
Commissioning
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5
Sensor with potentiometer:
The sensitivity (sensing range) is adjusted with the potentiometer (type: 270°). Clockwise
rotation: sensitivity (sensing range) increased; counterclockwise rotation: sensitivity (sensing
range) reduced. We recommend placing the switching state in the object, e.g., see Graphic F.
Once the sensitivity has been adjusted, the object is removed from the path of the beam.
The switching output changes (see Graphic C).
The sensor is adjusted and ready for operation. Refer to Graphics C and G to check the func‐
tion. If the switching output fails to behave in accordance with Graphic C, check application
conditions. See section Fault diagnosis.
Image 7: C
Commissioning
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Image 8: G
6 Fault diagnosis
Table 7 indicates which measures are to be taken if the sensor stops working.
7 Tab_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 connections (cables and
plug connections) /
Check the power supply, check all
electrical connections (cables and
plug connections)
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 /
Yellow LED flashes
Sensor is still ready for operation,
but the operating conditions are
not ideal /
Sensor is still ready for operation,
but the operating conditions are
not ideal
Check the operating conditions:
Fully align the beam of light (light
spot) with the object. / Clean the
optical surfaces / Readjust the
sensitivity (potentiometer) / Check
sensing range and adjust if neces‐
sary, see Graphic E /
Check the operating conditions:
Fully align the beam of light (light
spot) with the object. / Clean the
optical surfaces / Readjust the
sensitivity (potentiometer) /
Check sensing range and adjust if
necessary, see Graphic E
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LED indicator/fault pattern /
LED indicator/fault pattern
Cause /
Cause
Measures /
Measures
Yellow LED lights up, no object in
the path of the beam /
Yellow LED lights up, no object in
the path of the beam
Remission capability of the back‐
ground is excessive /
Remission capability of the back‐
ground is excessive
Check changes to the back‐
ground. Reduce the sensitivity of
the sensor or use sensors with
background suppression /
Check changes to the back‐
ground. Reduce the sensitivity of
the sensor or use sensors with
background suppression
Object is in the path of the beam,
yellow LED does not light up /
Object is in the path of the beam,
yellow LED does not light up
Sensitivity is set too low or dis‐
tance between the sensor and the
object is too long /
Sensitivity is set too low or dis‐
tance between the sensor and the
object is too long
Increase the sensing range, take
note of the distance between the
sensor and the background, see
Graphic E /
Increase the sensing range, take
note of the distance between the
sensor and the background, see
Graphic E
Object is in the path of the beam,
yellow LED does not light up /
Object is in the path of the beam,
yellow LED does not light up
Remission capability of the object
is insufficient /
Remission capability of the object
is insufficient
Increase the sensing range, take
note of the distance between the
sensor and the background, see
Graphic E /
Increase the sensing range, take
note of the distance between the
sensor and the background, see
Graphic E
8 Disassembly and disposal
The sensor must be disposed of according to the applicable country-specific regulations. Efforts
should be made during the disposal process to recycle the constituent materials (particularly pre‐
cious metals).
9 Maintenance
SICK sensors are maintenance-free.
We recommend doing the following regularly:
1. Clean the external lens surfaces
2. 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.
Reflexions-Lichttaster
Betriebsanleitung
12 Sicherheitshinweise
■Vor der Inbetriebnahme die Betriebsanleitung lesen.
■Anschluss, Montage und Einstellung nur durch Fachpersonal.
■Kein Sicherheitsbauteil gemäß EU-Maschinenrichtlinie. Nur zur Verwendung in Anwendungen
gemäß NFPA 79. Von UL gelistete Adapter mit Anschlusskabeln sind verfügbar. Enclosure
type 1
Disassembly and disposal
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■Gerät bei Inbetriebnahme vor Feuchte und Verunreinigung schützen.
■Diese Betriebsanleitung enthält Informationen, die während des Lebenszyklus des Sensors
notwendig sind.
13 Bestimmungsgemäße Verwendung
Die GRTE18 ist ein optoelektronischer Reflexions-Lichttaster (im Folgenden Sensor genannt) und
wird zum optischen, berührungslosen Erfassen von Sachen, Tieren und Personen eingesetzt. Bei
jeder anderen Verwendung und bei Veränderungen am Produkt verfällt jeglicher Gewährleis‐
tungsanspruch gegenüber der SICK AG.
Energetischer Reflexionslichttaster
Abb. 9: GRTE18-xxxx2
Abb. 10: GRTE18-xxxx7
14 Inbetriebnahme
1 Einsatzbedingungen prüfen: Schaltabstand und Remissionsvermögen des Objektes mit dem
zugehörigen Diagramm [vgl. H] abgleichen. (x = Schaltabstand, y = Funktionsreserve).
Dabei kann ein Objekt vor einem Hintergrund nur detektiert werden, wenn das Remissions‐
vermögen des Objektes deutlich größer ist als das Remissionsvermögen des Hintergrundes
oder der Abstand zwischen Objekt und Hintergrund ausreichend groß ist.
Sicherheitshinweise
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Abb. 11: H: Sensing range 115 mm
1) Sensing range on black, 6 % remission
2) Sensing range on gray, 20 % remission
3) Sensing range on white, 90 % remission
Abb. 12: H: Sensing range 550 mm
1) Sensing range on black, 6 % remission
2) Sensing range on gray, 20 % remission
3) Sensing range on white, 90 % remission
Inbetriebnahme
Irrtuemer | SICK 9
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