Balluff BTL5-T1 Series Bedienungsanleitung

User’s Guide

english

BTL5-T1 __ -M ____ -A/B/Y/Z-S103

www.balluff.com

www.balluff.com 3english

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

1 Notes to the user 5

1.1 Validity 5

1.2 Symbols and conventions 5

1.3 Scope of delivery 5

1.4 Software 5

1.5 Approvals and markings 5

2 Safety 6

2.1 Intended use 6

2.2 General safety notes for the position measuring system 6

2.3 Explanation of the warnings 6

2.4 Disposal 6

3 Construction and function 7

3.1 Construction 7

3.2 Function 7

3.3 Number of magnets 7

4 Installation and connection 8

4.1 Installation guidelines 8

4.2 Preparing for installation 8

4.3 Installing the transducer 9

4.3.1 Installation recommendation for hydraulic cylinders 9

4.4 Shielding and cable routing 10

4.5 Electrical connection 11

4.5.1 Connecting the supply voltage,

control and data signals 11

4.5.2 Connection example 11

5 Startup 12

5.1 Starting up the system 12

5.2 Operating notes 12

5.3 Default settings 12

5.4 Presettings 12

5.4.1 Station address 13

5.4.2 Bus termination 13

5.4.3 LED display for PROFIBUS encoder proﬁle 13

6 Technical data 14

6.1 Accuracy 14

6.2 Ambient conditions 14

6.3 Supply voltage (external) 14

6.4 Control signals 14

6.5 Output 14

6.6 Dimensions, weights 15

6.7 Connection to the evaluation unit 15

4english

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

7 Accessories 16

7.1 Magnets 16

7.2 Mounting nut 16

7.3 Connectors and cables 17

7.3.1 Connector, freely conﬁgurable 17

7.3.2 Connector, preassembled 17

7.3.3 Connecting cable, preassembled 18

7.3.4 Bus termination resistance, freely conﬁgurable 18

7.3.5 Screw plugs 18

8 Type code breakdown 19

9 Appendix 20

9.1 Converting units of length 20

9.2 Part label 20

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1.1 Validity

This guide describes the construction, function and setup

options for the BTL5 Transducer with Profibus DP inter-

face. It applies to types

BTL5-T1_ _-M____-A/B/Y/Z-S103

(see Type code

breakdown on page 19).

The guide is intended for qualified technical personnel.

Read this guide before installing and operating the

transducer.

1.2 Symbols and conventions

Individual instructions are indicated by a preceding

triangle.

►Instruction 1

Action sequences are numbered consecutively:

1. Instruction 1

2. Instruction 2

Note, tip

This symbol indicates general notes.

1.3 Scope of delivery

– BTL5 transducer

– Condensed guide

The magnets are available in various models

and must be ordered separately.

1.4 Software

GSD file via download on the Internet at www.balluff.com

or email to [email protected].

1.5 Approvals and markings

UL approval

File no.

E227256

US Patent 5923164

The US patent was awarded in connection with this

product.

The CE Mark verifies that our products

meet the requirements of the current

EMC Directive.

The transducer meets the requirements of the following

product standard:

– EN61326-2-3 (noise immunity and emission)

Emission tests:

– RF emission

EN55011

Noise immunity tests:

– Static electricity (ESD)

EN 61000-4-2 Severity level 3

– Electromagnetic fields (RFI)

EN 61000-4-3 Severity level 3

– Electrical fast transients (burst)

EN 61000-4-4

Severity level 3

– Surge

EN 61000-4-5 Severity level 2

– Conducted interference induced by

high-frequency fields

EN 61000-4-6

Severity level 3

– Magnetic fields

EN 61000-4-8 Severity level 4

More detailed information on the guidelines,

approvals, and standards is included in the

declaration of conformity.

1 Notes to the user

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

6english

2.1 Intended use

The Transducer, together with a machine controller (e.g.

PLC), comprises a position measuring system. It is inten-

ded to be installed into a machine or system and used in

the industrial sector. Flawless function in accordance with

the specifications in the technical data is ensured only

when using original Balluff accessories. Use of any other

components will void the warranty.

Opening the transducer or non-approved use are not

permitted and will result in the loss of warranty and liability

claims against the manufacturer.

2.2 General safety notes for the position

measuring system

Installation and startup may only be performed by

trained specialists with basic electrical knowledge.

Qualified personnel are those who can recognize

possible hazards and institute the appropriate safety

measures due to their professional training, knowledge,

and experience as well as their understanding of the

relevant regulations pertaining to the work to be done.

The operator is responsible for ensuring that local safety

regulations are observed.

In particular, the operator must take steps to ensure that a

defect in the position measuring system will not result in

hazards to persons or equipment.

If defects and unresolvable faults occur in the transducer, it

should be taken out of service and secured against

unauthorized use.

2.3 Explanation of the warnings

Always observe the warnings in these instructions and the

measures described to avoid hazards.

The warnings used here contain various signal words and

are structured as follows:

SIGNAL WORD

Hazard type and source

Consequences if not complied with

►Measures to avoid hazards

The individual signal words mean:

NOTICE

Identifies a hazard that could damage or destroy the

product.

DANGER

The general warning symbol in conjunction with the

signal word DANGER identifies a hazard which, if not

avoided, will certainly result in death or serious injury.

2.4 Disposal

►Observe the national regulations for disposal.

2 Safety

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

www.balluff.com 7english

~20

104 25

0.5

Ø 10.2

Thread M4x4/6 deep

1) Unusable area

2) Not included in scope of delivery

Thread size:

B: M18×1.5

Z: 3/4"-16UNF

Thread size:

A: M18×1.5

Y: 3/4"-16UNF

Mounting surface

Mounting

surface

Electrical connection

B: 30 –1 mm

Z: 2" - 0.04"

A: 30 –1 mm

Y: 2" - 0.04"

Damping zone

Magnet

Nominal length =

Measuring range

BTL5-…-B/Z-…

BTL5-…-A/Y-…

Fig. 3-1: BTL5… transducer, construction and function

3.1 Construction

Electrical connection: The electrical connection is made

via a connector (see Type code breakdown on page 19).

Housing: Aluminum housing containing the processing

electronics.

Mounting thread: We recommend assembling the

transducer on the mounting thread:

– BTL5-…-A/B: M18×1.5

– BTL5-…-Y/Z: 3/4"-16UNF

The transducer has an additional thread at the end of the

rod to support larger nominal lengths.

Magnet: Defines the position to be measured on the

waveguide. Magnets are available in various models and

must be ordered separately (see Accessories on

page16).

Nominal length: Defines the available measuring range.

Rods with various nominal stroke lengths from 25mm to

4000mm are available depending on the version.

Damping zone: Area at the end of the rod that cannot be

used for measurements, but which may be passed over.

3.2 Function

The transducer contains the waveguide which is protected

by an outer stainless steel tube (rod). A magnet is moved

along the waveguide. This magnet is connected to the

system part whose position is to be determined. The

magnet defines the position to be measured on the

waveguide.

3 Construction and function

The magnet defines the position to be measured on the

waveguide. An internally generated INIT pulse interacts

with the magnetic field of the magnet to generate a

torsional wave in the waveguide which propagates at

ultrasonic speed.

The component of the torsional wave which arrives at the

end of the waveguide is absorbed in the damping zone to

prevent reflection. The wave which arrives at the end of the

measuring range is converted by a coil into an electrical

signal. The travel time of the wave is used to calculate the

position at a resolution of 5µm. This is done with a high

level of precision and reproducibility in the selected

resolution within the measuring range indicated as the

nominal length.

The electrical connection between the transducer, the

decoder unit/controller, and power supply is established

via several cables that are connected via connectors.

3.3 Number of magnets

Up to 4 magnets can be used. The distance (L) between

the magnets must be at least 65mm.

Fig. 3-2: Distance between the magnets

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

8english

4.1 Installation guidelines

Non-magnetizable material

Magnet

Non-magnetizable material

1) Min. ØD2=Minimum diameter of the bore (seeTab. 4-1)

Fig. 4-1: Installation in non-magnetizable material

Magnetizable material

If using magnetizable material, the transducer must be

protected against magnetic interference through suitable

measures (e.g. spacer ring made of non-magnetizable

material, a suitable distance from strong external magnetic

fields).

Spacer ring made of non-magnetizable

material

Magnet

Spacer ring made of non-magnetizable

material

Magnet

1) Min.ØD2=Minimum diameter of the hole (seeTab. 4-1)

Fig. 4-2: Installation in magnetizable material

Rod diameter Bore diameter D2

10.2mm At least 13mm

Tab. 4-1: Bore diameter if installed in a hydraulic cylinder

4.2 Preparing for installation

Installation note: We recommend using non-

magnetizable material to mount the transducer and

magnet.

Horizontal assembly: For horizontal assembly with

nominal lengths > 500 mm, support the rod and tighten it

at the end if necessary.

Hydraulic cylinder: If installed in a hydraulic cylinder,

ensure that the minimum value for the bore diameter of the

support piston is complied with (seeFig. 4-1).

Mounting hole: The transducer comes with an M18×1.5

(ISO) or 3/4"-16UNF (SAE) mounting thread. Depending on

the version, a mounting hole must be made before

assembly.

Fig. 4-3: Mounting hole M18x1.5 per ISO6149 O-ring15.4x2.1

Fig. 4-4: Mounting hole 3/4”-16UNF per SAE J475 O-ring15.3x2.4

Magnet: Various magnets are available for the BTL5

transducer (see Accessories on page 16).

4 Installation and connection

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

www.balluff.com 9english

4.3 Installing the transducer

NOTICE

Interference in function

Improper installation can compromise the function of the

transducer and result in increased wear.

►The mounting surface of the transducer must make

full contact with the supporting surface.

►The bore must be perfectly sealed (O-ring/ﬂat seal).

►Make a mounting hole with thread (possibly with

countersink for the O-ring) acc. to Fig. 4-3 or Fig. 4-4.

►Screw the transducer with mounting thread into the

mounting hole (max. torque100Nm).

►Install the magnet (accessories).

►From 500mm nominal length: support the rod and

tighten it at the end if necessary.

Suitable nuts for the mounting thread are

available as accessories (see page 16).

4.3.1 Installation recommendation for hydraulic

cylinders

If you seal the hole with a flat seal, the max. operating

pressure will be reduced in accordance with the larger

pressurized surface.

If installing horizontally in a hydraulic cylinder (nominal

lengths>500mm), we recommend affixing a slide element

to protect the rod end from wear.

Dimensioning of the detailed solutions is the

responsibility of the cylinder manufacturer.

The slide element material must be suitable for the

appropriate load case, medium used, and application

temperatures. E.g. Torlon, Teflon or bronze are all possible

materials.

Fig. 4-5:

Slide element

Magnet

Example 1, transducer installed with slide element

The slide element can be screwed on or bonded.

►Secure the screws so they cannot be loosened or lost.

►Select a suitable adhesive.

Fig. 4-6: Detailed view and top view of slide element

There must be a gap between the slide element and piston

bore that is sufficiently large for the hydraulic oil to flow

through.

Options for fixing the magnet:

– Screws/bolts

– Threaded ring

– Press fitting

– Notches (center punching)

If installed in a hydraulic cylinder, the magnet

should not make contact with the rod.

The hole in the spacer ring must ensure optimum guidance

of the rod by the slide element.

Fig. 4-7: Fixing of magnet

An example of how to install the transducer with a

supporting rod is shown in Fig.4-8 on page10.

4Installation and connection (continued)

Piston rod

Rod

Slide element

Flow gap

Slide surface

Magnet

Fixing of magnet

Spacer ring

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

10 english

4Installation and connection (continued)

Fig. 4-8: Example2, transducer installed with supporting rod

4.4 Shielding and cable routing

Defined ground!

The transducer and the control cabinet must be

at the same ground potential.

Shielding

To ensure electromagnetic compatibility (EMC), observe

the following:

– Connect transducer and controller using a shielded

cable.

Shielding: Braided copper shield with minimum85%.

– Shield is internally connected to connector housing.

Magnetic fields

The position measuring system is a magnetostrictive

system.

It is important to maintain adequate distance between the

transducer/holding cylinder and strong, external magnetic

fields.

Cable routing

The Profibus bus line must be routed according to

Technical Guideline 2.111, Installation Guidelines for

PROFIBUS-DP/FMS.

When ducting the cable between the transducer, controller,

and power supply, it is important to avoid going near high

voltage cables due to interferences. Inductive stray noise

from AC harmonics (e.g. from phase angle controls) are

especially critical and the cable shield offers very little

protection against this.

The signal is transmitted to the controller via the

PROFIBUS DP interface.

Cable twisted in pairs, shielded.

Maximum length of the entire field bus cable: 1200 m

The transfer rate depends on the length of the cable. In

accordance with EN50170, the values named in Tab. 4-2

apply.

Cable length Baud rate [kbit/s]

< 100 m 12000

< 200 m 1500

< 400 m 500

< 1000 m 187.5

< 1200 m 93.7/19.2/9.6

Tab. 4-2: Baud rate depending on cable length

The bus must be terminated at both ends in accordance

with EN50170 (see Fig. 4-10).

The BTL5-T… can be assigned a station

address via DIP switches. In addition, the

BTL5-T… can internally terminate the bus via

DIP switches. For further information, see

Presettings on page 12.

Magnet

(e.g. BTL-P-1028-15R)

Supporting rod made of non-magnetizable material

BTL5-T1__-M____-A/B/Y/Z-S103

Transducer – Rod Style

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