FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION...

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80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION Fiber optic sensors function electronically like any other photoelectric sensor with the difference that the light emitted and received is transported by an optical fiber the end of which is very small and in different forms and it can be installed some distance from the electronic circuit. The reduced dimension of the fiber allows the sensing of very small objects and their installation in areas where other sensors would not fit. Furthermore they can be used in explosion risk areas as well as in liquids and have a very high resistance to mechanical damage and to vibrations which makes them suitable for installation on machinery were movement is involved. They are available in the reflection and barrier emit- ter/receiver. The light source is red and the length of the standard fibers is 2 metres. DIRECT REFLECTION FT18M-CFR WITH FIBERS FOR DIRECT REFLECTION In this type of function the red light emitter and receiver are contained in one fiber (MULTI CORED) or side by side (DOUBLE CORED). The sensing is obtained by the reflection of the rays of the object to be detected. The parameters that influence the sensing distance are mainly the colour, the reflective or the roughness of the surface to be sensed. The maximum sensing distances mentioned in the technical characteristics refer to results obtained with a piece of matt white paper dimension 10 x 10 cm. TYPES Checking the missing terminals Checking the form of components THRU BEAM FT18M-CFR WITH BARRIER FIBERS EMITTER/RECEIVER In this type of function the red light emitter and receiver are facing each other and are made up of a single fiber (SINGLE CORED). Detection occurs when the rays emitted are inter- rupted furthermore these fibers can reach at their maximum sensitivity regulation, long distances as there is no dispersion between emitter and receiver. Their power can be increased by using the AT-4101 lenses. Detecting the label on the transparent film Detecting the inverted caps FT18M-CFR AMPLIFIER Easy to install by using the available accessories. Mechanically robust amplifier in AISI 303 stainless steel. Single amplifier for all detection systems. Single amplifier for NPN and PNP versions (selection by switch). Switch from NPN to PNP without variation in electrical connection. Antiphase NO+NC static output. Available with 2m cable or M12 H plug connector. TECHNICAL CHARACTERISTICS FIBER OPTICS Covered in plastic polythene. Temperature limits: -40 ÷ +70°C. Different types of fiber available. In varius types it is possible to cut the fiber at the required length. Increased detection distance by using the AT-4101 lenses. Possibility of being able to divert the rays by 90° in the barrier types by using accessory AT-4102. Access in limited spaces with the types that have a sleeve. Z-TRAUQ INC. TEL. : (877) 798-7287 www.z-trauq.com [email protected]

Transcript of FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION...

Page 1: FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION Fiber optic sensors function electronically like any other photoelectric sensor

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FIBER OPTIC SENSORS - GENERAL DESCRIPTIONFiber optic sensors function electronically like anyother photoelectric sensor with the di�erence that thelight emitted and received is transported by an optical�ber the end of which is very small and in di�erentforms and it can be installed some distance from theelectronic circuit.The reduced dimension of the �ber allows the sensingof very small objects and their installation in areaswhere other sensors would not �t.Furthermore they can be used in explosion risk areas aswell as in liquids and have a very high resistance tomechanical damage and to vibrations which makesthem suitable for installation on machinery weremovement is involved.They are available in the re�ection and barrier emit-ter/receiver.The light source is red and the length of the standard�bers is 2 metres.

DIRECT REFLECTION

FT18M-CFR WITH FIBERS FOR DIRECT REFLECTIONIn this type of function the red light emitter andreceiver are contained in one �ber (MULTI CORED)or side by side (DOUBLE CORED).The sensing is obtained by the re�ection of the raysof the object to be detected. The parameters thatin�uence the sensing distance are mainly the colour,the re�ective or the roughness of the surface to besensed.The maximum sensing distances mentioned in thetechnical characteristics refer to results obtained witha piece of matt white paper dimension 10 x 10 cm.

TYPES

Checking the missing terminals

Checking the form of components

THRU BEAM

FT18M-CFR WITH BARRIER FIBERSEMITTER/RECEIVERIn this type of function the red light emitter andreceiver are facing each other and are made up of asingle �ber (SINGLE CORED).Detection occurs when the rays emitted are inter-rupted furthermore these �bers can reach at theirmaximum sensitivity regulation, long distances asthere is no dispersion between emitter and receiver.Their power can be increased by using the AT-4101lenses.

Detecting the label on the transparent �lm

Detecting the inverted caps

FT18M-CFR AMPLIFIER

• Easy to install by using the available accessories.

• Mechanically robust ampli�er in AISI 303 stainless steel.

• Single ampli�er for all detection systems.

• Single ampli�er for NPN and PNP versions (selection by switch).

• Switch from NPN to PNP without variation in electricalconnection.

• Antiphase NO+NC static output.

• Available with 2m cable or M12 H plug connector.

TECHNICAL CHARACTERISTICS

FIBER OPTICS

• Covered in plastic polythene.

• Temperature limits: -40 ÷ +70°C.

• Di�erent types of �ber available.

• In varius types it is possible to cut the �ber at the requiredlength.

• Increased detection distance by using the AT-4101 lenses.

• Possibility of being able to divert the rays by 90°in the barrier types by using accessory AT-4102.

• Access in limited spaces with the types that have a sleeve.

Z-TRAUQ INC. TEL. : (877) 798-7287 www.z-trauq.com [email protected]

Page 2: FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION Fiber optic sensors function electronically like any other photoelectric sensor

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FIBER OPTIC SENSORS - FT18M - CFR TYPESSTAINLESS STEEL CYLINDRICAL HOUSING M18 x 1PROGRAMMABLE OUTPUT NPN / PNPSENSITIVITY ADJUSTMENT FUNCTIONS NO + NC

TYPE

MODEL WITH CABLE

MODEL WITH H PLUG

ONE TYPE FOR DIRECT REFLECTION OR THRU-BEAM

FT18M-CFR

FT18M-CFR-H

NPN/PNP NO + NC

Red

≤ 75

700

10 ÷ 30

200

≤ 50

≤ 3

Incorporated

> 10.000 Lux

Operation indicator

Stability

Storage -20 ÷ +90°C • Working -20 ÷ +50°C

65

Stainless steel AISI 303

4 x 0.25 mm2

H

See page 69

32

85

Ø 2

1

15

M12

10

Programmable output

Light source

Power on delay

Switching frequency

Continuous voltage (Res. ripple ≤10%)

Max output current

Max current consumption at 24 Vdc

Voltage drop (I out = 200 mA)

Short circuit protection

Light immunity

Led

Temperature limits

Protection degree

Housing

Cable

Connector plug

Possible wiring connection

Led

mSec

Hz

V

mA

mA

V

Yellow

Green

°C

IP

2m

Sensitivity adjustment

PNPP N

NPNP N

WIRING DIAGRAMS

FT18M-CFR with direct reflection fiberBLACK WIRE = N.O. WHITE WIRE = N.C.

FT18M-CFR with thru-beam fiberBLACK WIRE = N.C. WHITE WIRE = N.O.

BROWN

WHITE

BLACK

BLUE

BROWN

WHITE

BLACK

BLUE

1

4

3

2

CONNECTION WHIT H PLUGFOR CONNECTORS SEE PAGE 85

FT18M-CFR-H power supply1 = Positive 3 = Negative

FT18M-CFR-H with direct reflection fiber4 = NO 2 = NC

FT18M-CFR-H with thru-beam fiber4 = NC 2 = NO

VIEW OF MALECONNECTOR H

Locknut for fixing fibersSwitchNPN/PNP

Stability LED

Output LED

PLUG HFOR CONNECTOR

Dimensions mm

TECHNICAL CHARACTERISTICS

N.C.N.O.

N.C.N.O.

Z-TRAUQ INC. Tel.: (450)226-6997 Fax: (450)226-5837 [email protected]

Page 3: FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION Fiber optic sensors function electronically like any other photoelectric sensor

10

M3

x 0.

5

5

Ø 3

2000

82 ®

FIBER PROBES FTL - FDL

ACCESSORIES

2.5M 2.6 x 0.45

Ø 5

Ø 3

10.5M 2.6 x 0.45

LENS VIEWER AT-4101 SIDE VIEWER 90° AT-4102

NOTE:The two accessories can be used onlywith the following fiber: FTL100.The AT-4101 lens increases the standarddistance by approximately 8 times ifmounted on the emitter and receiver.

TYPE

THR

U B

EAM

TY

PES FTL000*

FTL100*

FTL300*

FDL010

FDL020

FDL310

FDL120

FDL210

FDL311

312

M2,

6

M4

x 0.

7

2000

10015

Ø 1

.5

M4

x 0.

7

2000

3M

6 x

0,75

15

2000

3

M6

x 0,

75

15

2000

95

M6

x 0,

75

20

Ø 2

,5

2000

315

M4

x 0.

7

25 100

1000

Ø 3

25 100 15

1000

9012

Ø 0

.8

M4

x 0.

7

25 100

1000

DIR

ECT

REF

LEC

TIO

N T

YPE

S

DIMENSIONS mm

150

150

150

60

60

60

60

70

10

SENSINGDISTANCE

mmCUTTING

FIBERTYPEAPPLICATION

STANDARD

STANDARD

STANDARD

STANDARD

POSITIONINGS

STANDARD

POSITIONINGS

STANDARD

DETECTINGSMALL

OBJECTS

POSSIBLE

POSSIBLE

POSSIBLE

POSSIBLE

POSSIBLE

POSSIBLE

NOTPOSSIBLE

NOTPOSSIBLE

NOTPOSSIBLE

SINGLECORED

SINGLECORED

SINGLECORED

DOUBLECORED

MULTICORED

DOUBLE CORED

MULTICORED

DOUBLECORED

DOUBLECORED

*Thru beam types are supplied emitter + receiver together.

Z-TRAUQ INC. Tel.: (450)226-6997 Fax: (450)226-5837 [email protected]

Page 4: FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION Fiber optic sensors function electronically like any other photoelectric sensor

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FIBER OPTIC SENSORS - OPERATING PROCEEDURESINSTRUCTIONS FOR THE PROGRAMMING AND ADJUSTMENT

PNP

NPN

TRIMMER FOR THE SENSING RANGE ADJUSTMENT: The photocell is supplied with max. sensing range with the trimmertotally rotated in the clockwise direction. The sensitivity reduces by rotating the trimmer in the anti-clockwise direction.

SWITCH NPN/PNP: The photocell is supplied with the switch in P (PNP output).To change to NPN turn the switch to N in the anti-clockwise direction.WARNING! For a correct working of the unit, do not carry out the switching when the photocell is powered.

GREEN LED - STABILITY INDICATOR: This led is on when the level of the output signal and the alignment of thephotoelectric sensors are in the optimum position. In the case that the led is off this indicates that the lens is obscuredor for the types with direct reflection a possible alteration of the dimension or color of the object to be detected.

YELLOW LED - OPERATION INDICATOR: This led is on when the object to be detected enters the sensing range ofthe photocell giving output signals.

N.B. SENSITIVITY ADJUSTMENT• After adjustment the sensitivity can vary depending on variations in the object or conditions in the area of installation.• As reflection varies in relation to the object, adjustment should be carried out with the object present.• After having carried out adjustment, the fixing of the way and the curvature of the fiber should not be changed.

PROCEEDURE FOR THE DIRECT REFLECTION FIBER OPTICS ADJUSTMENT:Adjust the sensitivity to minimum turning the trimmer anticlockwise.Position the object to be sensed at the required distance in relation to theend of the fiber and turn the trimmer slowly clockwise until the yellow ledlights up. Continue turning the trimmer until the green led lights up. Re-check that the calibration is correct by using the object and possibly byrepeating the proceedure.IMPORTANT: in the presence of objects to be sensed the yellow led shouldbe illuminated.Output functions in the absence of the objects to be sensed.NO output = black wire (H version = PIN 4)NC output = white wire (H version = PIN 2)

PROCEEDURE FOR THE THRU-BEAM FIBER OPTICS ADJUSTMENT:

Adjust the sensitivity to minimum turning the trimmer anticlockwise.Position the end of the fibers at the required distance and turn the trimmerslowly clockwise until the yellow led lights up. Continue turning the trim-mer until the green led lights up. Re-check that the calibration is correct byusing the object and possibly by repeating the proceedure.IMPORTANT: in the presence of objects to be sensed the yellow led shouldbe illuminated.Output functions in the absence of the objects to be sensed.NC output = black wire (H version = PIN 4)NO output = white wire (H version = PIN 2)

PROCEEDURE FOR ASSEMBLING FIBERS IN THE FT18M-CFR

1) Position and screw thelocknut in the sensor loo-sely.

2) With the locknut looseinsert the fibers in the tworeceptacles.

3) With the locknut loose in thefibers ensuring that theyreach the end.

4) Tighten the locknut carefullyand ensure that, at the end ofthe operation, the fibers areblocked.

ACCESSORIES FOR MOUNTING AND INSTALLATION

4,2

Ø 4,2

30

36 Ø18

,2

16

92325

5

3630

6

50

MOUNTING BRACKET TYPE ST18 MOUNTING BRACKET TYPE ST3FOR DIN RAIL MOUNTING

Bracket ST18

Screw M4

Fixing spring

The mounting bracket ST3 is suppliedin kit with ST18 + screw M4 + fixing spring.

APPLICATION EXAMPLESWITH TYPE ST3

APPLICATION EXAMPLESWITH TYPE ST18

Z-TRAUQ INC. Tel.: (450)226-6997 Fax: (450)226-5837 [email protected]

Page 5: FIBER OPTIC SENSORS - GENERAL DESCRIPTION Optic.pdf · 80 FIBER OPTIC SENSORS - GENERAL DESCRIPTION Fiber optic sensors function electronically like any other photoelectric sensor

84 ®

FIBER OPTIC SENSORS - NOTES AND CAUTIONS FOR CORRECT OPERATIONS

FIBER OPTIC - CHARACTERISTIC CURVES

FIBER PROBES

Cutting-free type plastic fibers can be cut by the optional cutter (AT118) at anydesired lengthCut the plastic fiber before connection. Make sure to cut it sharply since thestatus of cutting surface influences to the sensing distance which might bereduced by up to 20%.Cutting should be done sharply by one action, and do not use the same holemore than once.

FIBER FIXING

Use the supplied spring lockwasher for fixing the fibers with threaded bushingin order not do damage the fibers with excessive force.When fixing the non-threaded head type with a set-screw (M3 max.) as indi-cated on the left side scheme, apply a torque of 3 kgf/cm max.

CONNECTION OF DIRECT REFLECTION MULTI-CORED FIBER

Put the SINGLE-CORED fiber to the LIGHT-EMITTER side and the MULTI-CORED fiber to the RECEIVER side.

STAINLESS SLEEVE FIBERS

The fibers with this type of terminal are very useful when the installation isdone in locations not easily accessible and this can be obtained bending thesleeve in relation to the required position.Make the bending radius to be processed on anneals stainless sleeve on thesensing head as large as possible according to the sleeve diameter rate as indi-cated on the left side scheme.

FIBER CUTTER AT 118

TYPE

M 3

M 4

M 6

FIXING TORQUE

6 Kgf - cm MAX.

6 Kgf - cm MAX.

10 Kgf - cm MAX.

EmitterSINGLE-CORED

ReceiverMULTI-CORED

10 mm

10 m

m

90° MAX R

Do not bendthese section

Sleeve Ø 0.1 mm R = 10 mmSleeve Ø 1.5 mm R = 15 mmSleeve Ø 2.5 mm R = 20 mm

XY

Y

80 70 60 50 40 30 20 10 0 10 20 30 40 50 60 70 80

θ

YSn (mm)

80 60 40 20 0 20 40 60 80

280

260

240

220

200

180

160

140

120

100

80

60

40

20

YSn (mm)

280

260

240

220

200

180

160

140

120

100

80

60

40

20

X (mm)25 20 15 10 5 0 5 10 15 20 25

YSn (mm)

80

70

60

50

40

30

20

10

Y

X

X (mm)

25 20 15 10 5 0 5 10 15 20 25

YSn (mm)

80

70

60

50

40

30

20

10

Y

X

X (mm)8 6 4 2 0 2 4 6 8

YSn (mm)

28

26

24

22

20

18

16

14

12

10

8

6

4

2

Y

X

X (mm)25 20 15 10 5 0 5 10 15 20 25

YSn (mm)

80

70

60

50

40

30

20

10

Y

X

X (mm)

TYPES FTL000 - FTL100 - FTL 300 (Thru beam)

Transverse moving Angular moving Sensing area

Whitepaper

10x10 cm

Fiber

TYPES FDL 020 (Direct reflection)

TYPES FDL010 - FDL310 (Direct reflection) TYPES FDL311 (Direct reflection)

Sensing area Sensing area

Whitepaper

10x10 cm

Fiber

Whitepaper

10x10 cm

Fiber

TYPES FDL210 - FDL120 (Direct reflection)

Sensing area

Whitepaper

10x10 cm

Fiber

Screw

Fiber

Fiber

Fiber

Fiber

0_(°) Angle

Z-TRAUQ INC. Tel.: (450)226-6997 Fax: (450)226-5837 [email protected]