Balluff BTL5-P Bedienungsanleitung

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S 32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

Technical Description / User’s Guide

28 0711

30 0762

32 0813

36 0914

40 1016

inches mm

15 0381

16 0407

18 0457

20 0508

22 0560

24 0610

26 0661

Rugged,

Compact

RodStyle

Compact,

bolt-in

RodStyle

Explosion-proof

RodStyle

Balluff - Linear Transducer

Generation 5

Output Type

Supply Voltage

1 = 24 Vdc ±20%

2 = ±15 Vdc ±2%

Normal Stroke Length

Housing Type

P = Standard Profile Housing

Connection Type

S 3 2

K A 0 5

= 8-pin quick disconnect metal connector

= Cable out (5m standard; specify length in meters)

Differential start/stop with tri-state

Differential stop - leading edge active

Differential pulse-width modulated

Differential start/stop - leading edge active

Single ended start/stop - leading edge active

Differential start/stop - trailing edge active

K A 0 5

0 3 0 5 = 305mm active stroke

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

B T L - 5 - P 1 - M 0 3 0 5 - P - S 3 2

Standard Stroke Lengths (consult factory for additional lengths)

inches mm

148 3759

156 3962

Electrical Stroke

inches mm

2 0051

3 0077

4 0102

5 0127

6 0152

7 0178

8 0203

9 0230

10 0254

11 0280

12 0305

13 0330

inches mm

42 1067

48 1220

50 1270

60 1524

70 1778

80 2032

90 2286

100 2540

110 2794

120 3048

130 3302

142 3606

BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

Read this manual before installing and operating the Micropulse

Transducer.

1.1 Proper application

The BTL5 Micropulse transducer is intended to be installed in a

machine or system. Together with a controller (PLC) or a proces-

sor (BTA) it comprises a position measuring system and may only

be used for this purpose.

Unauthorized modifications and non-permitted usage will result in

the loss of warranty and liability claims.

1.2 Qualified personnel

This guide is intended for specialized personnel who will perform

the installation and setup of the system.

1.3 Use and inspection

The relevant safety regulations must be followed when using the

transducer system. In particular, steps must be taken to ensure

that should the transducer system become defective no hazards to

persons or property can result. This includes the installation of

additional safety limit switches, emergency shutoff switches and

maintaining the permissible ambient conditions.

1.4 Scope

This guide applies to the model

BTL5-P/I/K/L/M...P... Micropulse

transducer.

An overview of the various models

can be found in section 6 Versions

(indicated on product label)

on page 7.

1 Safety Advisory

Contents

1 Safety Advisory ............... 2

1.1 Proper application .............. 2

1.2 Qualified personnel ............ 2

1.3 Use and inspection ............ 2

1.4 Scope ................................ 2

2 Function and

Characteristics ............... 3

2.1 Characteristics .................. 3

2.2 Function ............................. 3

2.3 Available stroke lengths

and magnets ..................... 3

3 Installation ..................... 3

3.1 Transducer installation ...... 3

3.2 Floating magnets ............... 4

3.3 Captive magnets ............... 5

4 Wiring .............................. 6

5 Startup ............................. 7

5.1 Check connections ........... 7

5.2 Turning on the system ....... 7

5.3 Check output values ......... 7

5.4 Check functionality ............ 7

5.5 Fault conditions ................. 7

5.6 Noise elimination ............... 7

6 Versions

(indicated on part label) 7

7 Technical Data ............... 8

7.1 Dimensions, weights,

ambient conditions ............ 8

7.2 Supply voltage (external) .... 8

7.3 Control signals .................. 8

7.4 Connection to processor ... 8

7.5 Included in shipment ......... 8

7.6 Magnets (order separately) 8

7.7 Accessories (optional) ....... 8

7.8 Compatible processors

and displays ...................... 8

Note: For special versions,

which are indicated by an -

SU_ _ _ designation in the

part number, other technical

data may apply (affecting

calibration, wiring, dimen-

sions etc.).

Group 1, Class A

Noise immunity tests:

Static electricity (ESD)

EN 61000-4-2

Severity level 3

Electromagnetic fields (RFI)

EN 61000-4-3

Severity level 3

Fast transients (Burst)

EN 61000-4-4

Severity level 3

Surge

EN 61000-4-5

Severity level 2

Line-induced noise induced by

high-frequency fields

EN 61000-4-6

Severity level 3

Magnetic fields

EN 61000-4-8

Severity level 4

The CE Mark verifies that

our products meet the

requirements of

EC Directive

89/336/EEC (EMC Directive)

and the EMC Law. Testing in our

EMC Laboratory, which is accredited

by DATech for Testing Electromag-

netic Compatibility, has confirmed

that Balluff products meet the EMC

requirements of the following

Generic Standards:

EN 50081-2 (emission)

EN 61000-6-2 (noise immunity)

Emission tests:

RF Emission

EN 55011

The following patents

have been granted in

connection with this

product:

US Patent 5 923 164

Apparatus and Method for

Automatically Tuning the

Gain of an Amplifier

US Patent 5 903 426

Overvoltage Protection

Apparatus for Data

Interface

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

2 Function and Characteristics

2.1 Characteristics

Micropulse transducers feature:

—Very high resolution,

repeatability and linearity

—Bus-compatible interface

(BTL5-I...)

— Immunity to shock, vibration,

contamination and electrical

noise

—An absolute output signal

—BTL to processor cable

lengths up to 500 m

—IP 67 per IEC 529

2.2 Function

The Micropulse transducer

contains a tubular waveguide

enclosed by an extruded

aluminum housing. A magnet

attached to the moving member

of the machine is moved across

the top of the housing and its

position constantly updated.

The magnet defines the

measured position on the

waveguide. An externally

generated INIT pulse interacts

with the magnetic field of the

magnet to generate a magneto-

strictive torsional wave in the

waveguide which propagates at

ultrasonic speed.

The torsional wave arriving at the

end of the waveguide is absorbed

in the damping zone. The wave

arriving at the beginning of the

waveguide creates an electrical

signal in the coil surrounding the

waveguide. The propagation time

of the wave is used to determine

the position, which is presented

on the output in various digital

formats. This takes place with

high precision and repeatability

within the measuring range

indicated as the nominal

stroke length.

On both ends of the nominal

stroke length is an area which

provides an unreliable signal, but

which may be entered.

The electrical connection between

the transducer, the processor/

controller and the power supply is

via a cable, which depending on

the version is either fixed or

connected using a female

connector.

Dimensions for installing the

Micropulse transducer and for the

magnets and control arm are

found on pages 4 and 5.

2.3 Available stroke length

To provide for optimum fit in any

application, a wide range of

standard stroke lengths and

magnets in various form factors

are available. Magnets and control

arms must therefore be ordered

separately.

See inside front cover for

available stroke lengths.

3.1 Transducer installation

Ensure that no strong

electrical or magnetic fields

are present in the

immediate vicinity of the

transducer.

Any orientation is permitted.

The mounting brackets and

cylinder head screws allow the

transducer to be mounted on a

flat machine surface. These

should be evenly spaced (Figs.

3-1 and 3-5). The recom-

mended spacing for long

transducers and extreme

conditions (e.g. strong shock or

vibration):

A = 80 mm; spacing between

the individual brackets

B = 250 mm.

The isolation bushings are used

to electrically insulate the

transducer from the machine

(Fig. 3-1and 3-5 and chapter 5.6

Noise elimination).

The Micropulse transducer in

profile housing is suitable both

for floating, i.e. non-contacting

magnets (Page 4) and for

captive magnets (Page 5).

3 Installation

Notch on housing to mark the beginning of the stroke range

Current position of magnet

Micropulse Transducer

Nominal stroke =

Measuring range

Fig. 2-1: Basic arrangement

El. connection

Damping zone

Moving machine

part

and magnets

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

3 Installation (cont.)

Fig. 3-1: Dimensional drawing (BTL5...P-S 32 transducer with floating magnet BTL5-P-3800-2)

Nominal stroke

Mounting brackets with isolation bushings and M5 x 22

cylinder head screws, DIN 912, max. tightening torque 2

Ø 4.2

61 +10

Fig. 3-2: BTL5-P-3800-2 magnet Fig. 3-4: BTL5-P-4500-1

electromagnet (24 V/100 mA)

Fig. 3-3: BTL5-P-5500-2 magnet

max. permissible

tightening torque 2 Nm

3.2 Floating magnets

The floating magnet (Figs. 3-2

to 3-4) is attached to the

moving member of the machine

using non-magnetizable screws

(brass, aluminum). To ensure

the accuracy of the transducer

system, the moving member

must carry the magnet on a

track parallel to the transducer.

The following table provides

figures in [mm] for the spacing

which must be maintained

between magnet and transducer

and for the permissible center

offset:

Magnet type Distance

" D " Offset

" C "

BTL5-P-3800-2 0.1 ... 4 ± 2

BTL5-P-5500-2 5 ... 15 ± 15

BTL5-P-4500-1 0.1 ... 2 ± 2

BTL5-P-4500-1 magnet,

special features: Multiple

magnets on the same

transducer can be turned on

and off individually (PLC control

signal).

The stroke range is offset 4

mm towards the BTL

connector/cable (Fig. 3-4).

Ensure that the

distance E between

parts made of

magnetizable

material and the

BTL5-P-5500-2 magnet is at

least 12 mm (Fig. 3-3).

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

3 Installation (cont.)

Fig. 3-5: Dimensional drawing (BTL5...P-KA transducer with captive magnet BTL5-F-2814-1S)

Mounting brackets with isolation bushings and M5 x 22

cylinder head screws, DIN 912,

max. tightening torque 2 Nm

Black,

round

marking

Nominal stroke

Ball joint "B"

DIN 71805,

rotates horizontally

Black, round

marking

Fig. 3-6: BTL5-F-2814-1S magnet

Fig. 3-7: BTL5-M/N-2814-1S magnet

Mechanically joined to M5

stud using 2 nuts Max. angle offset

Max. parallel offset

BTL5-M-2814-1S: X = 48.5 Y = 57

BTL5-N-2814-1S: X = 51 Y = 59.5

3.3 Captive magnets

Lateral forces are to be avoided

when using captive magnets

(Figs. 3-6 and 3-7). Connections

are required here which permit the

corresponding degree of freedom

with respect to the direction of

movement of the magnet along

the stroke range. It is assumed

that the BTL5-F-2814-1S magnet

is connected to the machine

member using a connecting rod.

The BTL2-GS08...A connecting

rod (Fig. 3-8) is available as an

accessory (please indicate length

LS when ordering).

Jam nut DIN 934 M5

Swivel eye DIN 648

Ball joint "B" DIN 71805,

rotates horizontally (part of

BTL5-F-2814-1S) magnet)

Fig. 3-8: BTL2-GS08-_ _ _ _-A

connecting rod

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

4 Wiring

straignt

BKS-S 32M-00

right-angle

BKS-S 33M-00

Cable entry

(PG 9 fitting)

Note the following

when making

electrical connec-

tions:

System and control cabinet

must be at the same

ground potential.

To ensure the electromagnetic

compatibility (EMC) which

Balluff warrants with the CE

Mark, the following instruc-

tions must be strictly

followed.

BTL transducer and the

processor/control must be

connected using

shielded cable.

Shielding: Copper filament

braided, 80% coverage.

The shield must be tied to the

connector housing in the

BKS connector (Fig. 4-1); see

instructions accompanying

the connector.

In the cable version the cable

shield is connected to the

housing in the PG fitting.

The cable shield must be

grounded on the control side,

i.e., connected to the

protection ground.

Pin assignments can be

found in Table 4-1. Connec-

tions on the controller side

may vary according to the

controller and configuration

used.

When routing the cable between

the transducer, controller and

power supply, avoid proximity to

high voltage lines to prevent noise

coupling.

Especially critical is inductive

noise caused by AC harmonics

(e.g. from phase-control devices),

against which the cable shield

provides only limited protection.

Cable length max. 500 m ;

Ø 6 to 8 mm.

High noise immunity on the line

between the transducer and

processor is provided by the

differential line drivers used for

the RS 485/422 interface. The

differential signal is carried to the

processor, which makes it

available as analog or digital

information for

further processing.

Fig. 4-1: Connector (optional)

1YE

3PK

Interrogate + Input

Interrogate - Input

2GY

5GN

Pulse + Output

Pulse - Output

7BN

6BU

+24

GND

Digital, RS485 differential

24 (P, M, I, K, L, R)

8WH GND

0117a025

iew of mating

connector, wiring side

1YE Interrogate + Input

2GY Pulse + Output

7BN

6BU

+24

GND

Digital, Single-ended

24 (N)

8WH GND

0117a026

1YE

3PK

Interrogate + Input

Interrogate - Input

2GY

5GN

Pulse + Output

Pulse - Output

7BN

6BU

+15

GND

Digital, RS485 differential

±15 (P, M, I, K, L, R)

8WH -15

0117a027

1YE Interrogate + Input

2GY Pulse + Output

7BN

6BU

+15

GND

Digital, Single-ended

±15 (N)

8WH - 15

0117a028

Fig. 4-2: Pin assignments BKS,

connector type BTL

BKS connector,

view towards

solder side of

female BKS-S

32M-00 or BKS-S

33M-00

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

4 Wiring (cont.)

INIT

START/STOP

INIT

START/STOP

GND

+24 V

BTL5-P1...KA_ _

processor or

controller

Fig. 4-3: BTL5-P1...KA_ _ with processor controller, wiring example

5 Startup

5.1 Check connections

Although the connections are

polarity reversal protected,

components can be damaged

by improper connections and

overvoltage. Before you apply

power, check the connec-

tions carefully.

5.2 Turning on the system

Note that the system may

execute uncontrolled move-

ments when first turned on or

when the transducer is part of a

closed-loop system whose

parameters have not yet been

set. Therefore make sure that

no hazards could result from

these situations.

5.3 Check output values

After replacing or repairing a

transducer, it is advisable to verify

the values for the start and end

position of the magnet in manual

mode. If values other* than those

present before the replacement or

repair are found, a correction should

be made.

* Transducers are subject to

modification or manufacturing

tolerances.

5.4 Check functionality

The functionality of the transducer

system and all its associated

components should be regularly

checked and recorded.

5.5 Fault conditions

When there is evidence that the

transducer system is not

operating properly, it should be

taken out of service and

guarded against unauthor-

ized use.

5.6 Noise elimination

Any difference in potential -

current flow - through the cable

shield should be avoided.

Therefore:

– Use the isolation bushings,

and

– Make sure the control

cabinet and the system in

which the BTL5 is contained

are at the same

ground potential.

Micropulse

Linear Transducer

6 Versions (indicated on part label)

Supply voltage 1 = DC 24 V, 2 = DC ±15 V

Electr. connect., S32: with connector,

BTL5-P1-M0450-P-S32 KA05: with 5 m cable

Profile form factor

Nominal stroke (4 digits): M = Metric units [mm]

U = Inch units [1/10 in.]

Digital output signals: BTL5-N... BTL5-P... BTL5-M... BTL5-I... BTL5-K... BTL5-L...

Start Stop Start Stop Start Stop Start Stop Stop Gate

(Trailing Edge

Active)

(Leading Edge

Active)

(RS-485

Multiplex)

(Leading Edge

Active)

(Pulse-width-

Modulated)

Single Ended

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BTL5-P/I/K/L/M_-M/U_ _ _ _-P-S32/KA_ _

Micropulse Linear Transducer

Digital Output / Profile Housing

7 Technical Data

The following are typical values at DC 24 V and 25 °C. Fully operational after power-up, with full accuracy after

warm-up. Values are with BTL5-P-3800-2, BTL5-P-4500-1 or BTL5-P-5500-2 magnet held at a constant

offset from the transducer or with captive magnet BTL5-F/M/N-2814-1S (see magnet section for exceptions):

Resolution < 2 µm

Hysteresis < 4 µm

Repeatability < 6 µm

(resolution + hysteresis)

System resolution (BTL5-.... + BTA)

is determined by the processor or

external controller.

Recommended sampling rate:

Nominal length fStandard

< 1000 mm 0.5 to 2 kHz

< 2000 mm 0.5 to 1 kHz

> 2000 mm 0.5 kHz

Non-linearity:

Nom. length < 500 mm > 500 mm

±100 µm ±0.02 %

Temperature coefficient

< (6 µm + 5 ppm *nominal length)/K

Shock loading 100 g/6 ms

per IEC 68-2-27 1

Continuous shock 100 g/2 ms

per IEC 68-2-29 1

Vibration 12 g, 10 to 2000 Hz

per IEC 68-2-6 1

1Individual specifications as per

Balluff factory standard

7.1 Dimensions, weights, ambient

conditions

• Nominal length < 4000 mm

• Dimensions pages 4 and 5

• Weight approx. 1.4 kg/m

• Housing anodized aluminum

• Housing attachment:

Mounting clamps with isolation

bushings and screws

• Operating temp. –40°C to +85°C

• Humidity < 90%, non-condensing

• Protection class per IEC 529 IP 67

when closed up

7.2 Supply voltage (external)

Regulated supply voltage

BTL5-_1... DC 20 to 28 V

Ripple < 0.5 Vpp

BTL5-_2... DC ±14.7 to ±15.3 V

Current draw < 90 mA (at 1 kHz)

Inrush < 3 A/0.5 ms

Polarity reversal protection built-in

Overvoltage protection

Transzorb diodes

Electric strength

GND to housing 500 V

Control arm (optional)

BTL2-GS08-_ _ _ _-A

Aluminum, dimensions

Fig. 3-

Various standard lengths LS

available (please specify when

ordering)

7.7 Accessories (optional)

Connectors Fig. 4-1

7.8 Compatible processors and

... for BTL5-P1

Analog output processor cards:

BTA-A 0...10 and 10...0 V

BTA-C 0...20 or 20...0 mA *

BTA-E 4...20 or 20...4 mA *

BTA-G -10...10 and 10...-10 V

* also: 0...10 V and 10...0 V

Digital output processor cards:

BTA-D11 20 bit, binary

BTA-S11 16 setpoint outputs

BTA-H11 22 bit,

BCD, Gray/binary or

SSD, Gray

BTA-V11 Velocity output card

Parallel, digital and analog output

Displays:

BDD-07-9 digital display, 7-digit

for BTA-H, BTA-S and BTA-V

BDD-AM10-1-P display and

controller with 2 relay outputs

BDD-CC08-1-P display and

controller with 8 setpoints

7.3 Control signals

INIT pulse

Level +5 V RS 485/422 driver

Length 1 µs (max. 3 µs)

Pulse lengths over 3 µs

can damage the unit.

Shielded cable,

max. length 500 m, Ø 6 to 8 mm.

7.5 Included in shipment

Transducer Fig. 3-1

or Fig. 3-5

(with mounting brackets,

isolation bushings and screws,

not incl. magnet)

7.6 Magnets (order separately)

• Spacing, offset and installation

pages 4 and 5

Operating temp. –40°C to +85°C

BTL5-P-3800-2 Fig. 3-2

Weight approx. 12 g

Housing plastic

BTL5-P-5500-2 Fig. 3-3

Weight ca. 40 g

Housing plastic

Non-linearity:

Nom. length < 500 mm > 500 mm

±150 µm ±0.03 % FS

BTL5-P-4500-1 Fig. 3-4

Weight approx. 90 g

Housing plastic

Operating temp. –40°C to +60 °C

BTL5-F-2814-1S Fig. 3-6

Weight approx. 28 g

Housing plastic

BTL5-M-2814-1S Fig. 3-7

Weight approx. 32 g

Housing anodized

aluminum

Contact surface plastic

BTL5-N-2814-1S Fig. 3-7

Weight approx. 35 g

Housing anodized

aluminum

Contact surface plastic

7.4 Connection to processor

displays

Andere Handbücher für BTL5-P

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