SICK GTB6L User manual

OPERATING INSTRUCTION

GTB6L

Miniature photoelectric sensors

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

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.

Original document

This document is an original document of SICK AG.

Laser

2006/42/EC

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

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

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

2 3 23

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

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+)

‒ (M)

Load

+ (L+)

‒ (M)

Load

-Px1xx

-Px2xx

-Px5xx

-Px6xx

D.ON, PNP: Q (≤ 100 mA)

+ (L+)

‒ (M)

Load

+ (L+)

‒ (M)

Load

-Nx1xx

-Nx2xx

-Nx3xx

Nx4xx

L.ON, NPN Open Collector Q (≤ 100 mA)

+ (L+)

‒ (M)

Load

+ (L+)

‒ (M)

+ (L+)

‒ (M)

Load

-Nx1xx

-Nx2xx

-Nx5xx

-Nx6xx

D.ON, NPN Open Collector Q (≤ 100 mA)

+ (L+)

‒ (M)

+ (L+)

‒ (M)

Load

+ (L+)

‒ (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%

GTB6L-xxx1x

Example:

Sensing range on black, 6%,

x = 150 mm, y = 20 mm

white

background (90%)

(1.97)

100

(3.94)

150

(5.91)

200

(7.87)

300

(11.81)

250

(9.84)

Distance in mm (inch)

350

(13.78)

400

(15.75)

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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