Balluff BTL7-A Series Manual de usuario

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

User’s Guide

english

www.balluff.com

www.balluff.com 3english

1 Notes to the user 5

1.1 Validity 5

1.2 Symbols and conventions 5

1.3 Scope of delivery 5

1.4 Approvals and markings 5

2 Safety 6

2.1 Intended use 6

2.2 Reasonably foreseeable misuse 6

2.3 General safety notes 6

2.4 Explanationof the warnings 6

2.5 Disposal 6

3 Construction and function 7

3.1 Construction 7

3.2 Function 8

3.3 LED display 8

4 Installation and connection 9

4.1 Installing the BTL 9

4.2 Captive magnets 9

4.3 Floating magnets 10

4.4 Electrical connection 11

4.4.1 Connector S32/cable connection KA_ _ 11

4.4.2 Connector S115 11

4.5 Shielding and cable routing 12

5 Startup 13

5.1 Starting up the system 13

5.2 Operating notes 13

6 Conﬁguration with the BTL7 Conﬁguration Tool 14

6.1 Value table for factory setting 14

6.2 BTL7 Conﬁguration Tool 14

6.3 Connecting the USB communication box 14

6.4 Conﬁguration options 15

7 Technical data 16

7.1 Accuracy 16

7.2 Ambient conditions 16

7.3 Supply voltage (external) 16

7.4 Output 16

7.5 Communication lines La, Lb 17

7.6 Dimensions, weights 17

8 Accessories 18

8.1 Captive magnets 18

8.2 BTL2-GS10-_ _ _ _-A joint rod 18

8.3 Floating magnets 19

8.4 Connector type S32 20

8.4.1 Freely conﬁgurable 20

8.4.2 Preassembled 20

8.5 Connector type S115, preassembled 21

8.6 USB communication box 21

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

4english

9 Type code 22

10 Appendix 23

10.1 Converting units of length 23

10.2 Part label 23

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

www.balluff.com 5english

1.1 Validity

This guide describes the construction, function and setup

options for the BTL magnetostrictive linear position sensor

with analog interface. It applies to types

BTL7-A/C/E/G501-M____-P-S32/S115/KA__ (see

Type code on page22).

The guide is intended for qualified technical personnel.

Read this guide before installing and operating the BTL.

1.2 Symbols and conventions

Individual handling instructions are indicated by a

preceding triangle.

►Handling instruction 1

Handling sequences are numbered consecutively:

1. Handling instruction 1

2. Handling instruction 2

Note, tip

This symbol indicates general notes.

Symbols of this type indicate the LED displays.

1.3 Scope of delivery

– BTL

– Mounting clamps with insulating sleeves and screws

– Condensed guide

The magnets are available in various models

and must be ordered separately.

1.4 Approvals and markings

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 BTL 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

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

6english

2.1 Intended use

The BTL magnetostrictive linear position sensor, together

with a machine controller (e.g. PLC), comprises a position

measuring system. It is intended 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 BTL or non-approved use are not permitted

and will result in the loss of warranty and liability claims

against the manufacturer.

2.2 Reasonably foreseeable misuse

The products are not intended for the following

applications and areas and may not be used there:

– in safety related applications where personal safety

depends on functioning of the device

– in explosion hazard areas

– in the food sector

2.3 General safety notes

Installation and startup may only be performed by

qualified personnel with basic electrical knowledge.

Qualified personnel are persons whose technical

training, knowledge and experience as well as knowledge

of the relevant regulations allows them to assess the work

assigned to them, recognize possible hazards and take

appropriate safety measures.

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 BTL will not result in hazards to persons or

equipment.

If defects and unresolvable faults occur in the BTL, take it

out of service and secure against unauthorized use.

2.4 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.

2.5 Disposal

►Observe the national regulations for disposal.

2 Safety

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

www.balluff.com 7english

3.1 Construction

Electrical connection: The electrical connection is made

via a cable or a connector (see Type code on page22).

Housing: Aluminum housing containing the waveguide

and processing electronics.

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18).

Nominal length: To optimally adapt the BTL to the

application, nominal lengths from 50mm to 7620mm are

available.

3 Construction and function

BTL7-…-S115

Fig. 3-1: BTL7-…, construction

12 72 73

~80 ~80~250 ~250

36.8

~23

13.8

max. 7

1) Unusable area

2) Not included in scope

of delivery

1) Nominal length =

Measuring range

Null point End point

Output signal rising:

Error signal

100 %

0 %

BTL5-P-3800-2 magnet

Mounting clamps with insulating bushes

and ISO4762M5x22 cylinder-head screws,

max. tightening torque 2Nm

BTL7-…-KA_ _

BTL7-…-S32

Groove

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

8english

3Construction and function (continued)

3.2 Function

The BTL contains the waveguide which is protected by an

aluminum housing. 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.

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 velocity.

The component of the torsional wave which arrives at the

end of the waveguide is absorbed in the damping zone to

prevent reflection. The component of the torsional wave

which arrives at the beginning of the waveguide is

converted by a coil into an electrical signal. The travel time

of the wave is used to calculate the position. Depending

on the version, this information is made available as a

voltage or current with rising or falling gradient.

The following functions can be selected for the output

values:

– Position

– Speed (with or without leading sign)

– Differential position

Two outputs that can be independently assigned are

available. Two magnets can be used.

The entire range of functionality can only be

configured with the PC software BTL7

Configuration Tool. To do this, the USB

communication box must be connected (see

Accessories on page18).

3.3 LED display

LED 2

LED 1

Fig. 3-2: BTL7 LED displays

In normal operation, the LEDs indicate the

operating states of the BTL. LED1 is assigned

to output1 and LED2 is assigned to output2.

LED1/LED2 Operating state

Green Normal function

Magnet is within the limits.

Red Error

No magnet or magnet outside the limits.

Flashing green Programming mode

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

www.balluff.com 9english

4.1 Installing the BTL

NOTICE!

Improper installation

Improper installation can compromise the function of the

BTL and result in damage.

►For this reason, ensure that no strong electrical or

magnetic ﬁelds are present in the immediate vicinity

of the BTL.

►The recommended spacing for the installation must

be strictly observed.

Any orientation is permitted. Mount the BTL on a level

surface of the machine using the provided mounting

clamps and cylinder-head screws. A sufficient number of

mounting clamps is supplied.

In order to avoid the development of resonant

frequences from vibration loads, we

recommend arranging the mounting clamps at

irregular intervals.

The BTL is electrically isolated from the machine with the

supplied insulating bushes (see Fig. 3-1).

1. Guide the BTL into the mounting clamps.

2. Attach BTL to the base using mounting screws (tighten

screws in the clamps with a max.2Nm).

3. Insert magnet (accessories).

The BTL in profile housing is suitable both for

floating, i.e.non-contacting magnets (see

Fig. 4-4 toFig. 4-8) and for captive magnets

(see Fig. 4-1 to Fig. 4-3).

4.2 Captive magnets

The following must be observed when installing the

magnet:

– Avoid lateral forces.

– Connect the magnet to the machine member with a

joint rod (see Accessories on page18).

Fig. 4-1:

66.4

Dimensions and distances with BTL5-F-2814-1S magnet

Fig. 4-2:

52.5

47.5

Dimensions and distances with BTL5-T-2814-1S magnet

Fig. 4-3:

Dimensions and distances with BTL5-M/N-2814-1S magnet

BTL5-M-2814-1S BTL5-N-2814-1S

Distance X 48.5mm 57mm

Distance Y 51mm 59.5mm

Tab. 4-1: Distances with BTL5-M/N-2814-1S magnet

4 Installation and connection

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

10 english

4Installation and connection (continued)

4.3 Floating magnets

The following must be observed when installing the

magnet:

– To ensure the accuracy of the position measuring

system, the magnet is attached to the moving member

of the machine using non-magnetizable screws

(stainless steel, brass, aluminum).

– The moving member must guide the magnet on a track

parallel to the BTL.

– Ensure that the distance A between parts made of

magnetizable material and the magnet is at least

10mm (see Fig. 4-4 toFig. 4-8).

– Maintain the following values for distance B between

the magnet and BTL and for center offsetC (see

Fig. 4-4 toFig. 4-8):

Type of magnet DistanceB1) OffsetC

BTL5-P-3800-2 0.1…4mm ±2mm

BTL5-P-5500-2 5…15mm ±15mm

BTL5-P-4500-1 0.1…2mm ±2mm

BTL6-A-3800-2 4…8mm2) ±5mm

BTL6-A-3801-2 4…8mm2) ±5mm

2) The selected distance must stay constant over the entire measuring length.

1) For optimum measurement results, a distanceB of 6 to 8mm is

recommended.

Tab. 4-2: Distance and offset for floating magnets

Fig. 4-4:

50+4

55+4

Dimensions and distances with BTL5-P-3800-2 magnet

Fig. 4-5:

61+10

66+10

Dimensions and distances with BTL5-P-5500-2 magnet

Fig. 4-6:

74+4

69+4

Dimensions and distances with BTL6-A-3800-2 magnet

Fig. 4-7:

63+4

58+4

Dimensions and distances with BTL6-A-3801-2 magnet

Fig. 4-8:

81+2

57.5+2

Dimensions and distances with BTL5 -P-4500-1

electromagnet (24V/100mA)

The measuring range is offset by 4mm towards

the BTL plug (see Fig. 4-8).

Plug with

LED

BTL7-A/C/E/G501-M _ _ _ _ -P-S32/S115/KA _ _

Magnetostrictive Linear Position Sensor – Profile Style

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