SICK GTB6L User manual
OPERATING INSTRUCTION
GTB6L
Miniature photoelectric sensors
Described product
G6L
GTB6L
Manufacturer
SICK AG
Erwin-Sick-Str. 1
79183 Waldkirch
Germany
Production location
SICK Malaysia
Legal information
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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.
Laser
1
2006/42/EC
NO
SAFETY
8025391 | SICK
Subject to change without notice 3
Contents
1 General safety notes......................................................................... 5
2 Notes on UL approval........................................................................ 5
3 Intended use...................................................................................... 5
4 Operating and status indicators...................................................... 5
5 Mounting............................................................................................. 6
6 Electrical installation........................................................................ 7
7 Commissioning.................................................................................. 8
7.1 Alignment.................................................................................................. 8
7.2 Sensing range........................................................................................... 8
7.3 Settings..................................................................................................... 9
8 Troubleshooting................................................................................. 10
9 Disassembly and disposal............................................................... 10
10 Maintenance...................................................................................... 11
11 Technical specifications................................................................... 12
11.1 Dimensional drawing................................................................................ 12
11.2 Light spot diagram.................................................................................... 13
CONTENTS
48025391 | SICK
Subject to change without notice
1 General safety notes
■Read the operating instructions before commissioning.
■
Connection, mounting, and configuration may only be performed by trained
specialists.
■
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.
EN/IEC 60825-1:2014
IEC60825-1:2007
LASER CLASS 1
Laser
1
Maximum pulse power < 5.95 mW
Puls length: 2 µs
Wavelength: 670 - 690 nm
Complies with FDA performance
standards except for conformance with
IEC 60825-1 Ed. 3,
as described in Laser Notice No. 56,
dated May 8, 2019
ATTENTION
WARNING: Interruption, manipulation or incorrect use can lead to hazardous exposure
due to laser radiation.
2 Notes on UL approval
UL Environmental Rating: Enclosure type 1
3 Intended use
The GTB6L 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.
4 Operating and status indicators
Photoelectric proximity sensor with background suppression.
GTB6L-xxx1x
GENERAL SAFETY NOTES 1
8025391 | SICK
Subject to change without notice 5
1
2 3 23
1
1Potentiometer: sensitivity adjustment
2Yellow LED indicator: Switching output
3LED indicator green: supply voltage active
GTB6L-xxx3x
Sensor which it is not possible to set: The sensor is adjusted and ready for operation.
2 3 23
5 Mounting
Mount the sensor using a suitable mounting bracket (see the SICK range of acces‐
sories).
Note the preferred orientation of the sensor relative to the direction of object motion,
refer to figure 1.
Figure 1: Sensor orientation relative to object direction
4 OPERATING AND STATUS INDICATORS
68025391 | SICK
Subject to change without notice
6 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: pin assignment
– Cable: wire color
Only apply voltage/switch on the voltage supply (UV > 0 V) once all electrical connec‐
tions have been established.
Explanation of connection terminology:
BN = Brown
WH = White
BU = Blue
BK = Black
n. c. = no connection
Q = switching output 1
Q = switching output 2
L+ = supply voltage (Uv)
M = common
L.ON = light operate
D.ON = dark operate
Connection and Output detail:
Table 1: DC
GTB6L -P1xxx
-N1xxx
-E2xxx
-F2xxx
-P3xxx
-N3xxx
-P5xxx
-N5xxx
-P4xxx
-N4xxx
-P6xxx
-N6xxx
-P7xxx
-N7xxx
-E4xxx
-F4xxx
-E6xxx
-F6xxx
-E7xxx
-F7xxx
1 = BN + (L+) + (L+) + (L+) + (L+) + (L+)
2 = WH -Q- n. c. Q
3 = BU - (M) - (M) - (M) - (M) - (M)
4 = BK Q Q Q Q Q
0.205 mm2 /
AWG24 0.205 mm2 /
AWG24
1
4
3
2
1
4
3
2
1
4
3
Table 2: Output function
GTB6L
ELECTRICAL INSTALLATION 6
8025391 | SICK
Subject to change without notice 7
-Px1xx
-Px2xx
-Px3xx
-Px4xx
L.ON, PNP: Q (≤ 100 mA)
+ (L+)
Q
‒ (M)
Load
+ (L+)
Q
‒ (M)
Load
-Px1xx
-Px2xx
-Px5xx
-Px6xx
D.ON, PNP: Q (≤ 100 mA)
+ (L+)
Q
‒ (M)
Load
+ (L+)
Q
‒ (M)
Load
-Nx1xx
-Nx2xx
-Nx3xx
Nx4xx
L.ON, NPN Open Collector Q (≤ 100 mA)
+ (L+)
Q
‒ (M)
Load
+ (L+)
Q
‒ (M)
+ (L+)
Q
‒ (M)
Load
-Nx1xx
-Nx2xx
-Nx5xx
-Nx6xx
D.ON, NPN Open Collector Q (≤ 100 mA)
+ (L+)
Q
‒ (M)
+ (L+)
Q
‒ (M)
Load
+ (L+)
Q
‒ (M)
Load
7 Commissioning
7.1 Alignment
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 sen‐
sor is completely clear [see figure 0].
7.2 Sensing range
Adjust the mounting position so that the sensing range and background are within
specification. Refer to see figure 2, page 9.
NOTE
Please note the minimum range of 5 mm.
7 COMMISSIONING
88025391 | SICK
Subject to change without notice
Use see table 2, page 7 to check the function. If the switching output fails to behave in
accordance with see table 2, page 7, check the application conditions.
6%/90%
18%/90%
90%/90%
1
2
3
GTB6L-xxx1x
yx
Example:
Sensing range on black, 6%,
x = 150 mm, y = 20 mm
white
background (90%)
0
5
10
15
25
20
30
50
(1.97)
100
(3.94)
150
(5.91)
200
(7.87)
300
(11.81)
250
(9.84)
0
Distance in mm (inch)
350
(13.78)
400
(15.75)
35
40
Min distance between object to background (mm)
Figure 2: GTB6L
1Sensing range on black, 6% remission
2Sensing range on gray, 18% remission
3Sensing range on white, 90% remission
7.3 Settings
Sensing range setting
Sensor which it is not possible to set: The sensor is adjusted and ready for operation.
The sensing range is adjusted with the potentiometer (type: 5-turn). Clockwise rotation:
sensing range increased; counterclockwise rotation: sensing range reduced. We recom‐
mend placing the object within the sensing range, e.g. see figure 2. 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
table 2].
Table 3: Adjustment sensing range
COMMISSIONING 7
8025391 | SICK
Subject to change without notice 9
The sensor is adjusted and ready for operation.
8 Troubleshooting
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 4: Troubleshooting
LED indicator/fault pattern Cause Measures
Yellow LED does not light up
even though the light beam is
aligned to the object and the
object is within the set sensing
range
No voltage or voltage below
the limit values
Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions)
Voltage interruptions Ensure there is a stable power
supply without interruptions
Sensor is faulty If the power supply is OK,
replace the sensor
Yellow LED flashes Sensor is still ready for opera‐
tion, but the operating condi‐
tions are not ideal
Check the operating condi‐
tions: Fully align the beam of
light (light spot) with the
object / Clean the optical sur‐
faces / Check sensing range
and adjust if necessary
Yellow LED lights up, no object
in the path of the beam
The sensing range distance is
too large
Reduce the sensing range
Object is in the path of the
beam, yellow LED does not
light up
Distance between the sensor
and the object is too long or
sensing range is set too short
Reduce the sensing range
9 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).
8 TROUBLESHOOTING
10 8025391 | SICK
Subject to change without notice
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