Rockwell Automation 42FB-xxx User Manual

Installation Instructions PHOTOSWITCHR

42FB General Purpose and Analog Output DIN Fiber Optic Sensors

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

General Purpose (Digital Output) Sensors

Description

42FB General Purpose DIN Fiber Optic Sensors are useful in
general purpose or high speed applications. Standard 250s
versions offer extended sensing ranges. High-speed 30s
versions offer a shorter sensing range, but extremely fast
response times for high speed parts counting and assembly
applications.

Each sensor can be directly DIN rail mounted. A separate
mounting bracket is also included for stand alone mounting.
Over 50 compatible standard plastic and small diameter glass
fiber optic cables are available, please refer to the
Allen-Bradley Sensors Catalog.

Features

S Pico quick-disconnect available
S No tools required to attach or remove fiber optic cables
S Dual LED indicators: Output (red), Stability (green)
S Four-turn sensitivity adjustment
S Visible red light source
S DIN rail or separate mount (with supplied bracket)
S Short circuit protection
S Reverse polarity protection
S Transient noise protection
S Switch selectable Light or Dark Operate outputs
S Switch selectable 50ms output off-delay (pulse stretcher)

Indicators

The red output indicator is ON when the detected light level is
above a margin of 1.0. The green stability indicator is ON
when the sensing application is stable, when the detected
light level is below a margin of 0.7 or above a margin of 1.2.

General Specifications

Ambient Temperature -- 2 5 Cto+55C(--13Fto+131F)

Relative Humidity 85% max

Housing Material ABS

Operating Environment NEMA 1 and IP40

Approvals UL listed and CSA certified,

class 2 source required

Weight 80 grams (2.8 oz)

Emitter LED Visible red 660nm

Connections 3 conductor 500V PVC cable, 2m length

4-pin DC pico style male receptacle

Analog Output Sensors

Description

42FB Analog Output Sensors provide a DC voltage output
that is proportional to the amount of transmitted or reflected
light detected. This sensor has a fast response time and good
temperature linearity as described in the Specifications
below.

Each sensor can be directly DIN rail mounted. A separate
mounting bracket is also included for stand alone mounting.
Over 50 compatible standard plastic and small diameter glass
fiber optic cables are available, please refer to the
Allen-Bradley Sensors catalog.

Features

S Pico quick-disconnect available
S No tools required to attach or remove fiber optic cables
S Red output indicator
S Four-turn sensitivity adjustment
S Visible red light source
S DIN rail or separate mount (with supplied bracket)
S Short circuit protection
S Reverse polarity protection
S Transient noise protection

Indicator

The red output indicator is ON when light is detected. The
intensity (brightness) of the indictor increases as more light is
detected.

General Specifications

Ambient Temperature -- 10 Cto+55C(14Fto+131F)

Relative Humidity 85% max

Housing Material ABS

Operating Environment NEMA 1 and IP40

Approvals UL listed and CSA certified,

class 2 source required

Weight 80 grams (2.8 oz)

Emitter LED Visible red 660nm

Connections 3 conductor 500V PVC cable, 2m length

4-pin DC pico style male receptacle

Temperature Drift Less than 0.15% per C

Output Ripple 50mV typical, 80mV max

1

Typical Response Curves—General Purpose

Retroreflective Diffuse Transmitted Beam

1000

1000

1000

99--809

100

10

Operating Margin

1

10mm

(0.39in)

99--808

100mm

(3.9in)

99--801

1000mm

(39.4in)

99--800

10000mm

(393.7in)

Distance to 76mm Reflector Model 92- 39

Typical Response Curves—Analog

99--809

100

10

Operating Margin

1

1mm

(0.03in)

10

8

6

4

Output (V)

2

0

99-- 800

020mm

99--801

99-- 808

10mm

(0.39in)

Distance to White Target

(0.78)

40mm
(1.57)

100mm

(3.9in)

60mm
(2.36)

99--800

1000mm

(39.4in)

80mm
(3.14)

100mm

(3.9in)

99--90

99-- 819

1000mm

(39.4in)

Operating Margin

100

10

1

(0.03in)

1mm

99--823

10mm

(0.39in)

99--821

Operating Distance

Transmitted BeamDiffuse with White Paper

10

8

Output (V)

6

4

2

0

0 20mm

(0.78)

99--819

60mm
(2.36)

100mm

(3.93)

140mm

(5.51)

Distance

Distance

Wiring

42FB--F2L _ _--A2

NPN Output

Cable

Brown: 12--24V DC

Black: Sensor Output

Blue: --DC

NPN Output

Quick-Disconnect

Note: Details regarding connection of Allen-Bradley Bulletin 42FB photoelectric sensors to Allen-Bradley programmable controllers can be found in publication 42 --2.0.

Brown

1

2
4

Black
Blue

3

PNP Output

Brown: 12--24V DC

Black: Sensor Output

Blue: --DC

PNP Output

1

2 2

4
3

Brown

Black
Blue

42FB--F2J _ _--A2

Analog Sensor

Brown: 12--24V DC

Black: Sensor Output

Blue: -- DC

Analog Sensor

1

4
3

Brown

Black
Blue

Pico

24

13

2

Dimensions—mm (inches)

12

(0.472)

3

(0.118)

(0.059)

9

(0.354)

30

Output Indicator

1.5

31.5

(1.240)

24

(0.944)

3

(0.118)

Fiber Connector

(Supplied With

Fiber Optic

Cable)

5.5

(0.216)

8

(0.315)

Fiber Optic

Cable Clamp

(0.354)

Sensitivity Potentiometer

(0.275)

8.5

(0.335)

0.5
(0.02)
O-ring

6

(0.236)

2

(0.078)

7

9

4

(0.157)

Stability Indicator

(General purpose version only)

(2.047)

35.2

(1.385)

(0.204)

(0.452)

52

5.2

18

(0.708)

(0.098)

2.5

11.5

Light Operate/Dark

Operate Switch

(General purpose version only)

Normal/Off Delay Switch

(General purpose version only)

3

(0.118)

0.5

(0.019)

3.8

(0.15)

Bracket Release

DIN Rail

Bracket

DIN Rail

Visible Red Fiber Optic

Supply

Operating Voltage

12--24V DC 10%

12--24V DC 5%

2% ripple max

Current

25mA

30mA PNP

25mA NPN

30mA

Fiber Optic

Cable Clamp

Output

Energized

Light/Dark
Selectable

Proportional to

the amount of
light detected

Typ e

NPN

PNP

1V to 8V

Analog

17.5

(0.688)

16

(0.629)

Output Characteristics

Max Load

Current

100mA 0.5mA

3mA — At least 1V/ms

Max Leakage

Current

3

Dia. 3.2 (0.125) x

5.2 (0.204)
2Places

Response Time

250s

30s

Catalog Number

Cable

42FB- F2LNA- A2

42FB- F2LNA- P4

42FB- F2LPA-A2

42FB- F2LPA-P4

42FB- F2LNAQ- A2

42FB- F2LNAQ- P4

42FB- F2LPAQ- A2

42FB- F2LPAQ- P4

42FB- F2JKA- A2

42FB- F2JKA- P4

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4

Publication 75009-- 055--01(G)

June 1999

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