turck Li-Q25LxE Series Operating Instructions Manual

Your Global Automation Partner

Operating Instructions

Li-Q25L…E

Linear Position Sensor
with Analog Output

2

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

Contents

3

2018/10

1 About These Instructions 5

1.1 Target groups 5

1.2 Explanation of symbols 5

1.3 Other documents 5

1.4 Feedback about these instructions 5

2 Notes on the Product 6

2.1 Product identication 6

2.2 Scope of delivery 6

2.3 Legal requirements 6

2.4 Manufacturer and service 7

3 For Your Safety 7

3.1 Intended use 7

3.2 General safety notes 7

4 Product Description 8

4.1 Device overview 8

4.2 Properties and features 9

4.3 Operating principle 9

4.4 Functions and operating modes 9

4.4.1 Output function 9

4.5 Technical accessories 10

5 Mounting 13

6 Connection 14

7 Commissioning 15

8 Operation 15

8.1 LEDs 15

9 Setting 15

9.1 Setting by manual bridging 16

9.1.1 Manual bridging – Setting the measuring range 16

9.1.2 Manual bridging – Resetting the sensor to factory settings 16

9.1.3 Manual bridging – Resetting the sensor to inverted factory settings 16

9.1.4 Manual bridging – Activating the Teach Lock 16

9.1.5 Manual bridging – Deactivating the Teach Lock 16

9.2 Setting via TX1-Q20L60 teach adapter 17

9.2.1 Teach adapter – Setting the measuring range 17

9.2.2 Teach adapter – Resetting the sensor to factory settings 17

9.2.3 Teach adapter – Resetting the sensor to inverted factory settings 17

9.2.4 Teach adapter – Activating the Teach Lock 17

9.2.5 Teach adapter – Deactivating the Teach Lock 17

Contents

4

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

10 Troubleshooting 18

11 Maintenance 18

12 Repair 18

12.1 Returning devices 18

13 Disposal 18

14 Technical Data 19

5

2018/10

1 About These Instructions

This manual describes the setup, the functions and use of the product and helps you to operate
the product for its intended use. Read the instructions carefully prior to using the product. This
will prevent the risk of personal injury and damage to property. Keep these instructions safe
during the service life of the product. If the product is passed on, pass on these instructions as
well.

1.1 Target groups

These instructions are written for suitably qualified and trained personnel and must be read by
anyone entrusted with the mounting, commissioning, operation, maintenance, disassembly or
disposal of the device.

1.2 Explanation of symbols

The following symbols are used in these instructions:

DANGER

DANGER indicates a hazardous situation, which, if not avoided, will result in death or
serious injury.

WARNING

WARNING indicates a hazardous situation with the risk of death or serious injury if it is
not prevented.

NOTICE

NOTICE indicates a situation that may cause damage to property if it is not prevented.

NOTE

NOTE indicates tips, recommendations and important information about special ac­tion steps and issues. The notes simplify your work and help you to avoid additional
work.



MANDATORY ACTION

This symbol denotes actions that the user must carry out.



RESULT OF ACTION

This symbol denotes the relevant results of an action.

1.3 Other documents

Besides this document the following material can be found on the Internet at www.turck.com:

■

Data sheet

1.4 Feedback about these instructions

We make every effort to ensure that these instructions are as informative and as clear as pos­sible. If you have any suggestions for improving the design or if some information is missing in
the document, please send your suggestions to [e-mail].

6

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

2 Notes on the Product

2.1 Product identication

2.2 Scope of delivery

The following are included in the scope of delivery:

■

Linear position sensor (without positioning element)

■

Optional: Positioning element and mounting element

2.3 Legal requirements

The device is subject to the following EC directives:

■

2014/30/EU (electromagnetic compatibility)

■

2011/65/EU (RoHS 2)

H1 1 5 1

Electrical connection

Configuration
1 Standart configuration

Number of contacts
5 5 pin

Connector
1 Straight

Connector
H1 Male M12 x 1

Li 100 P1

Inductive linear
position sensor

–

Positioning element
P0 No positioning

element

P1 P1-Li-Q25L
P2 P2-Li-Q25L
P3 P3-Li-Q25L

Measuring range
100 100…1000 mm,

in 100 mm steps
1250…2000 mm,

in 250 mm steps

Functional principle
Li Linear inductive

Li 100 P1 Q25L M1 E LiU5 X3 H1151

Q25L M1

Housing style –

Mounting element
M0 No mounting element
M1 M1-Q25L

M2 M2-Q25L

M4 M4-Q25L

Housing style
Q25L Rectangular,

profile 25 x 35 mm

E LiU5 X3

Electrical version –

Number of LEDs
X3 3 x LED

Output mode
LiU5 Analog output

4…20 mA/0…10 V

Series
E Extended

generation

7

2018/10

2.4 Manufacturer and service

Turck supports you in your projects – from the initial analysis right through to the commis­sioning of your application. The Turck product database offers you several software tools for
programming, configuring or commissioning, as well as data sheets and CAD files in different
export formats.
You can access the Product Database directly via the following address:

www.turck.de/products

For further inquiries in Germany contact the Sales and Service Team on:
Sales: [phone]
Technical: [phone]

For overseas inquiries contact your national Turck representative.

Hans Turck GmbH & Co. KG
Witzlebenstraße 7
45472 Mülheim an der Ruhr
Germany

3 For Your Safety

The product is designed according to state of the art technology. Residual hazards, however,
still exist. Observe the following warnings and safety regulations in order to prevent danger to
persons and property. Turck accepts no liability for damage caused by failure to observe these
warnings and safety instructions.

3.1 Intended use

The devices are designed only for use in industrial areas.
The Li-Q25…E inductive linear position sensors with an analog output are used for contactless
and wear-free linear position measuring.
The device must only be used as described in these instructions. Any other use is not in accor­dance with the intended use. Turck accepts no liability for any resulting damage.

3.2 General safety notes

■

The devices are not safety components and must not be used for the protection of persons
and property.

■

The device must only be fitted, installed, operated, maintained and parameterized by trained
and qualified personnel.

■

The device only fulfills the EMC requirements for industrial applications and is not suitable for
use in residential areas.

8

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

4 Product Description

The inductive linear position sensors of the Li-Q25L series with an analog output consist of a
sensor and a positioning element. The two components form a measuring system for measur­ing and converting the measured variable for Length and Position.

The sensors are supplied with a measuring length of 100…2000mm: In the 100…1000mm
range, variants are available in 100 mm steps, in the 1000…2000mm range, variants are avail­able in 250 mm steps. The maximum measuring range of the sensor is defined by its length.
However, the measuring range can be individually adapted with a teach operation.

The sensor is housed in a rectangular aluminum profile.
The positioning element is available in different designs in a plastic housing (cf. Accessories
list in chapter 4.5). Sensor and positioning element comply with degree of protection IP67 and
can withstand the vibrations of moving machine parts as well as being resistant to a number of
environmental media.

Sensor and positioning element together enable contactless and wear-free measuring. The
sensors operate in absolute mode. Voltage failures do not require renewed homing or recalibra­tion. All position values are determined as absolute values. Homing movements after a voltage
failure are unnecessary.

4.1 Device overview

Fig. 1: Dimensions of Li-Q25L…E in mm – L = 29 mm + measuring length + 29 mm

25.2

51

3

45.7

38.6

33.8

5

M12 x 1

10,5

29

25

29

L

35

A

B

9

2018/10

4.2 Properties and features

■

Measuring lengths of 100…2000mm

■

Shock-proof up to 200 g

■

Keeps linearity under shock stress

■

Magnetic field immunity

■

5kHz scan rate

■

16-bit resolution

4.3 Operating principle

The Li-Q25L linear position sensors have contactless operation based on the inductive resonant
circuit measuring principle. Measuring is insensitive to magnetic fields as the positioning ele­ment is not based on a magnet but on a coil system.

Sensor and positioning element form an inductive measuring system. An induced voltage gen­erates appropriate signals in the receiver coils of the sensor, depending on the position of the
positioning element. The signals are evaluated in the internal 16-bit processor of the sensor and
output as analog signals.

4.4 Functions and operating modes

The devices are provided with a current and voltage output. The device output provides a cur­rent and voltage signal that is proportional to the position of the positioning element.

Fig. 2: Output characteristics – Device with 0…10V voltage output

and 4…20mA current output

4.4.1 Output function

The measuring range of the sensor starts at 4mA or 0V and ends at 20mA or 10V.
Current and voltage outputs can be used simultaneously. The simultaneous use of current and
voltage output can be used for redundant signal evaluation. A display device can also receive a
signal while the second signal is further processed by a PLC.

Besides the LEDs the sensor provides an additional control function. If the positioning element
is outside of the detection range and the coupling between the sensor and the positioning
element is thus broken, the analog output of the sensor is 24mA or 11V. This error can thus be
evaluated directly via the higher-level controller.

A

I [mA]U [V]

0

B

AB

4

10

11

20

24

10

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

4.5 Technical accessories

Dimension drawing Type Ident No. Description

Positioning element

40,4

20

40

20,7

28,8

35,3

M5

M5

8

reference

point

P1-Li-Q25L 6901041 Guided positioning element for Li-

Q25L, is guided in the groove of the
sensor

12

35,5

32

23

21,5

4,5

4,5

ø 5,2
(4x)

26,3

12,5

reference
point

P2-Li-Q25L 6901042 – Free positioning element for Li-Q25L

– The nominal distance to the sensor

is 1.5mm.

– Coupling with the linear position

sensor possible at a distance of up
to 5 mm or a lateral offset of up to
4mm possible

12

35,5

32

23

21,5

4,5

4,5

ø 5,2
(4x)

26,3

16

reference
point

P3-Li-Q25L 6901044 – Free positioning element for Li-

Q25L, operational at 90° offset

– The nominal distance to the sensor

is 1.5mm.

– Coupling with the linear position

sensor possible at a distance up to 5
mm or a misalignment tolerance of
up to 4mm possible

14

28

23

11,1

35,8

19,9

7

9

ø 4,4
(4x)

reference point

P6-Li-Q25L 6901069 – Free positioning element for Li-Q25L

– The nominal distance to the sensor

is 1.5mm.

– Coupling with the linear position

sensor possible at a distance up to 5
mm or a misalignment tolerance of
up to 4mm possible

11

2018/10

Dimension drawing Type Ident No. Description

40,4

20

40

20,7

M5

M5

reference
point

P7-Li-Q25L 6901087 Guided positioning element for Li-

Q25L without ball joint is guided in the
groove of the sensor

Mounting accessories

31,2

10,6

50

66

7,5

15

ø 5,6

M1-Q25L 6901045 –Mounting foot for Q25L linear posi-

tion sensor
– Material: Aluminum
– Recommended tightening torque:

3Nm
– 2per bag

42,5

56

7,5

15

ø 4,5

31,2

10,6

M2-Q25L 6901046 –Mounting foot for Q25L linear posi-

tion sensor
– Material: Aluminum
– Recommended tightening torque:

3Nm
– 2per bag



















M4-Q25L 6901048 –Mounting bracket and MN-M4-Q25

sliding block for Q25L linear position

sensor
– Material: Stainless steel
– 2per bag



















MN-M4-Q25 6901025 –Sliding block with M4 thread for

Q25L linear position sensor
– Material: Galvanized steel
– Recommended tightening torque:

2.2Nm

– 10per bag

12

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

Dimension drawing Type Ident No. Description

9

19,2

22

M5

M5

18°

7

AB-M5 6901057 Axial joint for guided positioning

elements

9

19,2

22

M5

M5

18°

7

ABVA-M5 6901058 –Axial joint for guided positioning

elements
– Material: Stainless steel

9

19,2

22

M5

M5

18°

7

RBVA-M5 6901059 – Angle joint for guided positioning

elements
– Material: Stainless steel

Teach adapter

60

30

50

20

M12 x 1

M12 x 1

42.5

ø 15

ø 4.5

8

TX1-Q20L60 6967114 Teach adapter for easy adaption of the

measuring range

Connection accessories

L

RKS4.5T-2/TXL 6626373 – Connection cable

– M12 female connector
– Straight
– 5-pin
– Shielded
– Cable length: 2m
– Sheathing material: PUR, black
– cULus approval; other cable lengths

and types available, see

www.turck.com

45.4

ø 15

M12 x 1

14

50

5

13

2018/10

5 Mounting

Different mounting accessories are available for the various mounting possibilities of the linear
position sensor in the plant.

Fig. 3: Mounting with mounting foot or mounting bracket

Mounting element Recommended tightening torque

M1-Q25L 3 Nm

M2-Q25L 3 Nm

MN-M4-Q25L 2.2 Nm

Sensor type Recommended number of xings

Li100…Li500 2

Li600…Li1000 4

Li1250…Li1500 6

Li1750…Li2000 8

14

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

6 Connection

NOTE

Turck recommends the use of shielded connection cables.

 Connect the female connector of the connection cable to the male connector of the device.
 If required, connect the TX1-Q20L60 teach adapter between the female connector of the con-

nection cable and the plug connector of the device.

 Connect the sensor as per Figure 4.

NOTE

 Keep pin 5 potential-free during operation in order to prevent any accidental teach

operations, or activate Teach Lock (see chapter 9.1.4/9.2.4).

Pin layout Wiring diagram

4 BK

1 BN3 BU

2 WH

5 GY

3 BU

1 BN

2 WH

4 BK

–

+

I

U

ext. teach

5 GY

Fig. 4: Pin layout and wiring diagram

15

2018/10

7 Commissioning

The device is operational automatically once the cables are connected and the power supply is
switched on.

8 Operation

8.1 LEDs

Fig. 5: LEDs 1 and 2

LED Display Meaning

LED 1 Green Positioning element within measuring range

Yellow Positioning element in detection range with reduced signal

quality (e.g. distance to sensor too large)

Yellow flashing Positioning element not in detection range

Off Positioning element outside of set measuring range

LED 2 Green Power supply error-free

9 Setting

The sensor offers the following setting options:

■

Set the start of the measuring range (zero point)

■

Set the end of measuring range (end point)

■

Reset measuring range to factory settings:
maximum measuring range

■

Reset measuring range to inverted factory settings:
maximum measuring range, inverted output characteristic

■

Activate/deactivate Teach Lock

The measuring range can be set by manual bridging or with the TX1-Q20L60 teach adapter.
Zero point and end point of the measuring range can be set in succession or separately.

NOTE

 Keep pin 5 potential-free during operation in order to prevent any accidental teach

operations, or activate Teach Lock (see chapter 9.1.4/9.2.4).

LED 2

LED 1

16

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

9.1 Setting by manual bridging

9.1.1 Manual bridging – Setting the measuring range

 Switch on the power supply of the device.
 Place the positioning element at the required zero point of the measuring range.
 Bridge pin 5 and pin 3 for 2s.
 LED 2 flashes green for 2 s during bridging.
 The zero point of the measuring range is stored.

 Switch on the device power supply.
 Place the positioning element at the required end point of the measuring range.
 Bridge pin 5 and pin 1 for 2s.
 LED 2 flashes green for 2 s during bridging.
 The end point of the measuring range is stored.

9.1.2 Manual bridging – Resetting the sensor to factory settings

 Switch on the device power supply.
 Bridge pin 5 and pin 1 for 10s.
 LED 2 flashes green for 2 s,

then shows a continuous green light for 8 s
and flashes green again (after 10s).

 The sensor is reset to its factory settings.

9.1.3 Manual bridging – Resetting the sensor to inverted factory settings

 Switch on the device power supply.
 Bridge pin 5 and pin 3 for 10s.
 LED 2 flashes green for 2 s,

then shows a continuous green light for 8 s
and flashes green again (after 10s).

 The sensor is reset to its inverted factory settings.

9.1.4 Manual bridging – Activating the Teach Lock

NOTE

The Teach Lock function is deactivated by default.

 Switch on the device power supply.
 Bridge pin 5 and pin 1 for 30s.
 LED 2 first flashes green for 2 s,

then shows a continuous green light for 8 s
and flashes green again (after 10s)
and then flashes green (after 30 s) at a higher frequency.

 The Teach Lock function of the sensor is activated.

9.1.5 Manual bridging – Deactivating the Teach Lock

 Switch on the device power supply.
 Bridge pin 5 and pin 1 for 30s.
 LED 2 shows a continuous green light for 30 s (Teach Lock is still activated)

and flashes green after 30 s at a higher frequency.

 The Teach Lock function of the sensor is deactivated.

17

2018/10

9.2 Setting via TX1-Q20L60 teach adapter

9.2.1 Teach adapter – Setting the measuring range

 Switch on the device power supply.
 Place positioning element at the zero point of the measuring range.
 Hold down the pushbutton on the adapter to Teach-Gnd for 2 s.
 LED 2 flashes green for 2 s and then shows a continuous green light.
 The zero point of the measuring range is stored.

 Switch on the device power supply.
 Place the positioning element at the end point of the measuring range.
 Hold down the pushbutton on the adapter to Teach-UB for 2 s.
 LED 2 flashes green for 2 s and then shows a continuous green light.
 The end point of the measuring range is stored.

9.2.2 Teach adapter – Resetting the sensor to factory settings

 Switch on the device power supply.
 Hold down the pushbutton on the adapter to Teach-UB for 10 s.
 LED 2 flashes green for 2 s,

then shows a continuous green light for 8 s
and flashes green again (after 10s).

 The sensor is reset to its factory settings.

9.2.3 Teach adapter – Resetting the sensor to inverted factory settings

 Switch on the device power supply.
 Hold down the pushbutton on the adapter to Teach-Gnd for 10 s.
 LED 2 flashes green for 2 s,

then shows a continuous green light for 8 s
and flashes green again (after 10s).

 The sensor is reset to its inverted factory settings.

9.2.4 Teach adapter – Activating the Teach Lock

NOTE

The Teach Lock function is deactivated by default.

 Switch on the device power supply.
 Hold down the pushbutton on the adapter to Teach-UB for 30 s.
 LED 2 first flashes green for 2 s,

then shows a continuous green light for 8 s
and flashes green again (after 10s)
and then flashes green (after 30 s) at a higher frequency.

 The Teach Lock function of the sensor is activated.

9.2.5 Teach adapter – Deactivating the Teach Lock

 Switch on the device power supply.
 Hold down the pushbutton on the adapter to Teach-UB for 30 s.
 LED 2 shows a continuous green light for 30 s (Teach Lock is still activated)

and flashes green after 30 s at a higher frequency.

 The Teach Lock function of the sensor is deactivated.

18

Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [e-mail] | www.turck.com

10 Troubleshooting

Malfunctions of the resonance coupling are indicated on LED 1.
If the device does not function as expected, first check whether ambient interference is present.
If there is no ambient interference present, check the connections of the device for faults.
If there are no faults, there is a device malfunction. In this case, decommission the device and
replace it with a new device of the same type.

11 Maintenance

Ensure regularly that the plug connections and cables are in good condition. The devices are
maintenance-free, clean dry if required.

12 Repair

The device must not be repaired by the user. The device must be decommissioned if it is faulty.
Observe our return acceptance conditions when returning the device to Turck.

12.1 Returning devices

If a device has to be returned, bear in mind that only devices with a decontamination declara­tion will be accepted. This is available for download at

https://www.turck.de/en/retoure-service-6079.php

and must be completely filled in, and affixed securely and weather-proof to the outside of the
packaging.

13 Disposal

The devices must be disposed of correctly and must not be included in normal household
garbage.

19

2018/10

14 Technical Data

Measuring range

Measuring range 100…1000mm in 100 mm steps; 1250…2000mm in 250 mm steps;

Resolution 16bit

Nominal distance 1.5mm

Blind zone a 29mm

Blind zone b 29mm

Repetition accuracy ≤ 0.02% of full scale

Linearity tolerance depending on measuring length (see data sheet)

Temperature drift ≤ ± 0.003%/K

Hysteresis not applicable due to operating principle

Ambient temperature -25…+70°C

Operating voltage 15…30VDC

Ripple ≤ 10% U

ss

Insulation test voltage ≤ 0.5kV

Short-circuit protection Yes

Wire breakage / reverse polarity protection yes/yes (power supply)

Output function 5-pin, analog output

Voltage output 0…10V

Current output 4…20mA

Load resistance voltage output ≥ 4.7kΩ

Load resistance current output ≤ 0.4kΩ

Sampling rate 5kHz

Current consumption < 50mA

Design Rectangular, Q25L

Dimensions (measuring length + 58) × 35 × 25mm

Housing material Anodized aluminum

Material of active face Plastic, PA6-GF30

Electrical connection Male connector, M12 × 1

Vibration resistance (EN 60068-2-6) 20g, 1.25h per axis; 3 axes

Shock resistance (EN 60068-2-27) 200g, 4ms 1/2sine

Degree of protection IP67

IP66

MTTF 138 years to SN 29500 (Ed. 99) 40 °C

Packed quantity 1

Operating voltage indication LED: Green

Measuring range indication Multifunction LED: Green, yellow, yellow flashing

100003779 | 2018/10

*10000778*

Over 30 subsidiaries and over

60 representations worldwide!

www.turck.com