turck LTX-R10 Series User manual

Your Global Automation Partner
Instructions for Use
LTX
Linear Position Sensors
with SSI Interface

2Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com

V07.00 | 2022/01 3
Contents
1 About these Instructions................................................................................................................... 5
1.1 Target groups................................................................................................................... 5
1.2 Explanation of symbols used ........................................................................................ 5
1.3 Other documents ............................................................................................................ 5
1.4 Feedback about these instructions.............................................................................. 5
2 Notes on the product......................................................................................................................... 6
2.1 Product identification..................................................................................................... 6
2.2 Scope of delivery ............................................................................................................. 7
2.3 Turck service..................................................................................................................... 7
3 For your safety .................................................................................................................................... 8
3.1 Intended use..................................................................................................................... 8
3.2 General safety instructions............................................................................................8
4 Product description............................................................................................................................ 9
4.1 Device overview .............................................................................................................. 9
4.1.1 Indication elements ........................................................................................................................ 9
4.2 Properties and features................................................................................................10
4.3 Operating principle.......................................................................................................10
4.4 Functions and operating modes ................................................................................10
4.4.1 Automatic signal control.............................................................................................................11
4.4.2 Update mode ..................................................................................................................................11
4.4.3 Measuring functions.....................................................................................................................12
4.4.4 Preference type LTX…M-F10-SSI2-GAF1-X3-H1161 – Measuring range...................12
4.5 Technical accessories....................................................................................................13
5 Installing.............................................................................................................................................16
5.1 Mounting the device in a hydraulic cylinder ...........................................................17
5.1.1 Mounting the sensor ....................................................................................................................18
5.2 Fastening the device with mounting bracket externally ......................................19
5.2.1 Mounting additional mounting brackets (for external mounting)..............................20
5.2.2 Installing the positioning element (for external mounting) ..........................................21
6 Connection.........................................................................................................................................22
6.1 Wiring diagram ..............................................................................................................22
7 Commissioning .................................................................................................................................23
8 Operation ...........................................................................................................................................24
8.1 LED indication ................................................................................................................24
9 Troubleshooting ...............................................................................................................................25
9.1 Replacing the sensor head and measuring element ..............................................25
10 Maintenance......................................................................................................................................26
11 Repair..................................................................................................................................................26
11.1 Returning devices..........................................................................................................26
12 Disposal ..............................................................................................................................................26
13 Technical data ...................................................................................................................................27
13.1 Update time....................................................................................................................27
14 Turck subsidiaries – contact information.....................................................................................28

Contents
4Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com

V07.00 | 2022/01 5
1 About these Instructions
These instructions for use describe the structure, functions and the use of the product and will
help you to operate the product as intended. Read these instructions carefully before using the
product. This is to avoid possible damage to persons, property or the device. Retain the instruc-
tions for future use 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 aimed at qualified personal and must be carefully read by anyone
mounting, commissioning, operating, maintaining, dismantling or disposing of the device.
1.2 Explanation of symbols used
The following symbols are used in these instructions:
DANGER
DANGER indicates a dangerous situation with high risk of death or severe injury if
not avoided.
WARNING
WARNING indicates a dangerous situation with medium risk of death or severe in-
jury if not avoided.
CAUTION
CAUTION indicates a dangerous situation of medium risk which may result in minor
or moderate injury if not avoided.
NOTICE
NOTICE indicates a situation which may lead to property damage if not avoided.
NOTE
NOTE indicates tips, recommendations and useful information on specific actions
and facts. The notes simplify your work and help you to avoid additional work.
uCALL TO ACTION
This symbol denotes actions that the user must carry out.
aRESULTS OF ACTION
This symbol denotes relevant results of actions.
1.3 Other documents
Besides this document, the following material can be found on the Internet at www.turck.com:
nData sheet
nDeclarations of conformity
nApprovals
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 [email protected].

Notes on the product
Product identification
6Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
2 Notes on the product
2.1 Product identification
LTX 100 M Magnetostrictive
position sensor –
Unit
M Millimeter
E Inch
Measuring range
100 from 25 to 7500 mm
or 1 to 300“
Operating principle
LTX Linear position sensor
LTX 100 M – F10 – SSI 2 – G A F 1 – X3 – H1 1 6 1
F10 Design –
Design
F10 Flat face, rod Ø 10.3 mm,
sensor head made from
aluminum*
R10 Raised face, rod Ø 10.3 mm,
sensor head made from
aluminum
EF10 Flat face, rod Ø 10.3 mm,
sensor head made from
stainless steel
ER10 Raised face, rod Ø 10.3 mm,
sensor head made from
stainless steel
SSI 2 – G A F 1 – X3 Electrical version –
Number of LEDs
X3 3-color LED
Resolution
10.005 mm*
20.01 mm
30.05 mm
40.1 mm
50.02 mm
60.002 mm
70.001 mm
Direction
Fforward*
Rbackward
Vvelocity
Data type
Ssynchronous
Aasynchronous*
Data format
Bbinary
Ggray*
Data length
124 bit
225 bit*
326 bit
Data mode
H1 1 6 1 Electrical connection:
Male
Assignment
1Standard assignment
Number of contacts
66-pin
Connector type
1straight
Connector type
H1 Male connector M12 x 1
* Preference type
NOTE
Types with manufacturer compatible connectors and models with customized blind
zones are available on request. The LTX…M-F10-SSI2-GAF1-X3-H1161 devices are
preference types.

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2.2 Scope of delivery
The scope of delivery includes:
nLinear position sensor (without positioning element)
nQuick Start Guide
2.3 Turck service
Turck supports you with your projects, from initial analysis to the commissioning of your applic-
ation. The Turck product database under www.turck.com contains software tools for program-
ming, configuration or commissioning, data sheets and CAD files in numerous export formats.
The contact details of Turck subsidiaries worldwide can be found on p. [}28].

For your safety
General safety instructions
8Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
3 For your safety
The product is designed according to state-of-the-art technology. However, residual risks still
exist. Observe the following warnings and safety notices to prevent damage to persons and
property. Turck accepts no liability for damage caused by failure to observe these warning and
safety notices.
3.1 Intended use
The magnetostrictive linear position sensors are used for contactless and wear-free linear posi-
tion measuring. The devices are suitable for use in hydraulic cylinders. By adding float magnets
(available as an option), the devices can also be used for level measurement. The measuring
range is adjustable.
The devices may only be used as described in these instructions. Any other use is not in accord-
ance with the intended use. Turck accepts no liability for any resulting damage.
3.2 General safety instructions
nThe device meets the EMC requirements for industrial areas. When used in residential areas,
take measures to avoid radio interference.
nThe device may only be assembled, installed, operated, parameterized and maintained by
professionally-trained personnel.
nThe device may only be used in accordance with applicable national and international regu-
lations, standards and laws.
nOnly operate the device within the limits stated in the technical specifications.

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4 Product description
The linear position sensors with an SSI interface provide a serial synchronous interface output
signal (SSI) that is proportional to the position of the positioning element. Different device
variants enable the following measuring functions to be performed:
nPosition measurement, forward measuring direction
nPosition measurement, backward measuring direction
nSpeed measurement
The devices can be connected using an M12 plug connector. All devices feature a rod design
with IP68 protection. The devices have contactless operation, which requires the use of a posi-
tioning element approved by Turck (see section “Technical accessories”).
The devices operate in absolute mode, power failures do not require renewed homing or recal-
ibration. All position values are determined as absolute values, homing runs after a voltage
drop are unnecessary.
4.1 Device overview
24
44.5
ø44.5
ø 10.3
10
M18 x 1.5 x 25
M12 x 1
81.3
L
63.5
Blind zone
50.8
Blind zone
Measuring
range
Fig.1: LTX device dimensions with standard blind zones (in mm)
4.1.1 Indication elements
Each device has a 3-color LED for indicating the operating state and for fault diagnostics.

Product description
Functions and operating modes
10 Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
4.2 Properties and features
nSSI output
nAutomatic signal control
n7…30 VDC power supply
nLow power consumption
nHigh shock and vibration resistance
nProtection type IP68
n16-bit resolution
nStatus indication via 3-color LED
nSensor and pressure pipe can be replaced separately
nM12 connector
4.3 Operating principle
The operation of the Turck LTX sensors is based on the magnetostrictive principle. A so-called
“waveguide” is located in the measuring probe of the linear position sensor. If a current signal
generated on the waveguide hits the magnetic field of the positioning element applied from
outside, this produces a mechanical feedback in the waveguide. This feedback is evaluated in
the sensor head and output as position information.
4.4 Functions and operating modes
The devices are provided with an SSI interface according to the RS422 standard. The process
value is either transferred via the interface to the higher-level controller (with SSI card) directly
or to a fieldbus device.
+7…30 V
0 V
SSI Clock (+)
SSI Clock (–)
SSI Data (+)
SSI Data (–)
Input
Power
Supply
SSI Shift Register and Controller
Output Data Format Conversion
SSI Logic Diagram
Position Measurement
Fig.2: Block diagram of the sensor control
The location of the positioning element on the sensor probe is determined by means of a
propagation time measurement and transmitted to the controller via the SSI interface. All posi-
tion values are determined as absolute values, homing runs after a voltage drop are unneces-
sary.

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New incoming position data is transferred via the data signal 605 ns after the rising edge of the
clock signal. This time frame, including the elapsed time caused by the length of the cable must
be allowed for when defining the transmission rates.
min. 16 µs
Clock (+)
Data (+)
Clock Interval
LSBMSB
Fig.3: SSI signal diagram: Bitwise transmission from most significant bit (MSB) to least signific-
ant bit (LSB)
4.4.1 Automatic signal control
The device is automatically adjusted to the signal strength of the positioning element as soon
as the sensor is supplied with power. The automatic signal control fully compensates for any
tolerances.
4.4.2 Update mode
The devices can be operated in synchronous or asynchronous update mode. In asynchronous
mode up to 2000 measurements (depending on length, see also section “Update time”) can be
carried out per second to update the position values. In synchronous mode, the clock rate for
the update depends on the controller (max. 2000 measurements per second, depending on
length). If the controller queries the position data on the sensor faster than it is provided by the
sensor, the sensor in synchronous mode switches automatically to asynchronous mode and
continues to supply the latest position information to the controller.
NOTE
Turck recommends operating the device in asynchronous update mode if no highly
dynamic control requirements are involved.
SSI Clock
Synchronous
Asynchronous
Controller
Update
Internal
Repetition
Update
Position
Update
Position
Update
Position
Update
Position
Update
Position
Update
Position
Update
Position
Fig.4: Synchronous and asynchronous update mode
Synchronous update mode
The clock pulse rate of the controller sets the frequency for reading the position data. The
sensor transmits one position data bit to the controller with each pulse. The first clock edge of
the controller signals the sensor to carry out a new position measurement. The updated posi-
tion data is transferred in the next read cycle.
NOTE
In synchronous mode, the position data available for the controller is no more than
one update cycle old.

Product description
Functions and operating modes
12 Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
Asynchronous update mode
The sensor carries out position measurement according to a fixed internal scan rate (sensor
internal measuring cycle) and supplies position information on request of the controller.
4.4.3 Measuring functions
Different device variants are available for performing the different measuring functions:
Device type Measuring function
LTX…SSI…F… Position,
forward measuring
direction
The position value is incremented during the
movement along the measuring probe start-
ing from the sensor head.
LTX…SSI…R… Position,
backward measuring
direction
The position value is incremented during the
movement toward the sensor head starting
from the end of the measuring probe.
LTX…SSI…V… Speed measurement The sensor provides speed information
directly.
4.4.4 Preference type LTX…M-F10-SSI2-GAF1-X3-H1161 – Measuring range
The preference types LTX…M-F10-SSI2-GAF1-X3-H1161 are available with following measuring
lengths as standard:
Measuring range Configured
10…500 mm In 25 mm steps
500…2000 mm In 50 mm steps
2000…7600 mm In 500 mm steps

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4.5 Technical accessories
The following accessories are not supplied with the device:
Positioning element
Dimension drawing Type ID Description
ø 32,8
ø 23,8
ø 4,7
ø 13,5
16,8
7,9
STM-AL-R10 6900409 Standard 4-hole positioning element,
aluminum, suitable for mounting in the
hydraulic cylinder
ø 25,4
7,9
ø 13,5
CM-R10 6900416 Standard positioning element, suitable for
mounting in the hydraulic cylinder
S
N
ø 63,5
ø 4,75
ø 19,05
9,65
S
S
35,74
10,31
LSPM-AL-R10 6900414 Ring positioning element with slot, aluminum,
can be used for external mounting with
RB-R10 mounting bracket

Product description
Technical accessories
14 Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
Dimension drawing Type ID Description
50,8
ø 14,1
ø 50,8
max.
ø 52,1
EF-R10 6900417 Float positioning element, stainless steel,
specific gravity 0.62 kg/m³, for external
mounting for level monitoring
Spacer
Dimension drawing Type ID Description
ø 32,8
ø 23,8
ø 4,7
ø 13,5
16,8
6,4
STS-R10 6900411 Standard spacer made from non-ferrous
material, for separating the positioning ele-
ment from the ferrous base of the hydraulic
piston rod, suitable for mounting in the
hydraulic cylinder

V07.00 | 2022/01 15
Accessories for external mounting
Dimension drawing Type ID Description
#6-32
ø 7,1
31,7
23,8
50,8
76,2
25,4
15,7
50,8
ø 14,2
MMB-R10 6900004 Mounting bracket for positioning element, for
external mounting, with screws and standard
STS-R10 spacer
50,8
19,3
12,7
ø 12,2
ø 10,5
50,8
26,2
ø 7,1
ø 7,1
31,7
50,8
76,2
25,4
15,7
50,8
ø 19,5
MB-R10 6900419 Mounting bracket, sensor head and rod, for
external mounting, with screws
50,8
19,3
12,7
ø 12,2
ø 10,5
50,8
26,2
ø 7,1
RB-R10 6900420 Mounting bracket for rod, for external
mounting, with screws
Connection cables
Dimension drawing Type ID Description
14
42
11.5
ø 15
M12 x 1
L
50
5
RKC6T-2/TXL 6627031 Connection cable, M12 female connector,
straight, 6-pin, cable length: 2 m, sheathing
material: PUR, black, cULus approval, other
cable lengths and types available,
see www.turck.com
M12 x 1 ø 15
42
L
50
7
RKC6T-2/S618 U5311-51 Connection cable, M12 female connector,
straight, 6-pin, cable length: 2 m, sheathing
material: PVC, gray, cable with foil shield,
drain wire not connected to coupling nut,
other cable lengths and types available,
see www.turck.com

Installing
16 Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
5 Installing
The device can be mounted in a hydraulic cylinder or externally with a mounting bracket.
NOTICE
Incorrect mounting
Risk of damage to the sensor
Secure the device in place using only the hexagon nut on the sensor head (max.
tightening torque: 50 Nm).
Do not fasten by turning the sensor head itself.
Ensure that the positioning element is guided centrally along the entire measur-
ing length over the pressure pipe (deviation < 0.5 mm).
81.3 [3.20]
2.5 [.10]
7.1 [.28]
ø 25.4 [1.00]
ø 44.5 [1.75]
7.9
[.31]
ø 10.3 [.405]
32.8 [1.28]
M12 x 1 3-color LED
LTX…M: M18x1.5-6gx25mm thread
w/jam nut
LTX…E: 3/4-16x1.00 thread
w/jam nut
Viton O-ring
for 1/2“ dia
tube boss seal
Span 63.5 [2.50] Dead band
50.8 [2.00] Null
Standard 4-hole positioning element
(STM-AL-R10)
Fig.5: Side view LTX-R10 with dimensions in mm [in] (design with raised face)
9.6
[.38]
Fig.6: Type with flat face (F10) – housing nut with thread
2.5 [.10]
7.1 [.28]
ø 25.4 [1.00]
Fig.7: Type with raised face (R10) – housing nut with thread

V07.00 | 2022/01 17
5.1 Mounting the device in a hydraulic cylinder
NOTICE
Incorrect mounting
Risk of damage to the hydraulic cylinder
Observe the instructions of the cylinder manufacturer and the hydraulic cylinder
specifications.
The devices can be mounted directly in a hydraulic cylinder. For this a hole with a recommen-
ded diameter of 13.5 mm must be provided in the cylinder piston rod (depending on the
cylinder design). To fasten the device, an M18×1.5 threaded hole according to ISO 6149-1 is
required in the end cap of the hydraulic cylinder.

Installing
Mounting the device in a hydraulic cylinder
18 Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
5.1.1 Mounting the sensor
Loosen the hexagon nut on the sensor and remove from the thread.
Ensure that the pressure seal O ring is located on the sensor head.
Mount the non-ferrous spacer between the positioning element and base of the piston
rod.
Mount the positioning element. Observe a minimum distance of 51mm between the
positioning element and sensor head with the piston moved in. If the minimum distance
cannot be observed, embed the positioning element in the cylinder piston.
Recommendation for sensors with probe lengths of ≥ 1500 mm: use a protective ring,
e.g. made of polymer (see fig. 8, no. 2). The protective ring prevents the mechanical wear
of positioning elements by the pressure pipe with the piston fully extended.
Fasten the positioning element and spacer with non-ferrous screws.
Remove the protective cap on the hydraulic cylinder (if present). The hole in the cylinder
piston rod should have a diameter of at least 13.5 mm.
Insert the sensor pressure pipe into the cylinder piston rod.
Screw in the sensor via the thread of the sensor head in the M18 × 1.5 threaded hole of
the hydraulic cylinder (max. tightening torque: 50 Nm).
23
4
5
1
Fig.8: Mounting the device in a hydraulic cylinder
Position Description
1 Viton O ring
2 Protective ring (optional)
3 4-hole positioning element
4 Spacer for positioning element
5 13.5 mm hole in the cylinder piston rod

V07.00 | 2022/01 19
5.2 Fastening the device with mounting bracket externally
NOTICE
Magnetization of the metal in close proximity of the probe
Inaccurate measurements
Mount the sensor probe at least 7 mm away from ferromagnetic material.
NOTE
Non-ferrous materials, such as brass, copper, aluminum, demagnetized stainless
steel or plastic do not impair the function of the sensor.
Loosen the hexagon nut on the thread of the sensor head.
Guide the mounting bracket over the pressure pipe up to the sensor head.
If the mounting bracket has an M18 × 1.5 threaded hole, screw tight the sensor directly.
Fasten the mounting bracket.
Re-fasten the hexagon nut on the sensor head.
MB-R10
MMB-R10
RB-R10
ø 7.1 [0.28]
32 [1.26]
25.4 [1.00]
7 × 26
[0.28 × 1.02]
11 [0.43]
50.8
[2.00]
50.8
[2.00]
Fig.9: Mounting a device with mounting brackets

Installing
Fastening the device with mounting bracket externally
20 Hans Turck GmbH & Co. KG | T [phone] | F [phone] | [email protected] | www.turck.com
5.2.1 Mounting additional mounting brackets (for external mounting)
On devices over 750 mm in length, additional mounting brackets (RB-R10) increase protection
from mechanical stresses such as shock and vibration. The mounting brackets must be made
from non-ferrous material.
When using additional mounting brackets, use a ring-type positioning element with a
slot.
Fit the mounting brackets from ferromagnetic (already magnetized) material at least
7mm away from the blind zone as well as from the active measuring range of the sensor.
Sensors with probe lengths of 750…1800 mm: Fit additional mounting brackets as per
fig. 10.
Sensors with probe lengths > 1800 mm: Fit mounting brackets at distances of 1200 mm.