Rockwell Automation 42FT User Manual

Installation Instructions

PHOTOSWITCH Bulletin 42FT SelfĆTeach Fiber Optic

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Description

The 42FT is a compact, DIN Rail Mount Fiber Optic Photoelectric sensor with sophisticated part detection, diagnostic, and self-teach capabilities.

Five LED indicators provide diagnostic and alignment information. A dynamic diagnostic output signals when margin levels are below a predetermined threshold for seven successive detections.

The self-teach capability allows the Bulletin 42FT to determine an optimum sensitivity and hysteresis setting for a specific application. The remote lockout feature can be used to help prevent unauthorized changes to these adjustments. A switch selectable 50ms off-delay (“pulse stretcher”) is useful in high speed applications where the output pulse must be lengthened to allow time for the machine logic to respond.

42FT sensors are designed for DIN rail mounting. For installation convenience, a steel mounting bracket is supplied for separate mounting.

42FT sensors are designed for use with 2.2mm diameter plastic fiber optic cables. An adaptor is supplied with the sensor to use 1.25mm diameter plastic fiber optic cables. Fiber optic cables are held in place by a rotating collar. No tools are required to attach or remove fiber optic cables. Special glass fiber optic cables are also available. Over 40 compatible standard plastic and glass fiber optic cables are available, please refer to page 1–232 of the C112 Sensor catalog.

Features

S Pico quick-disconnect available S (5) LED indicators: 0.8X to 1.6X margin and output S Manual or Self-Teach sensitivity adjustment S Manual or Self-Teach hysteresis adjustment S Stability output S Visible red, green, or blue light sources S Selectable light or dark operate

Features (continued)

S Selectable 50ms off-delay output (pulse stretcher) S Can be DIN rail mounted or separately mounted S No tools required to attach or remove Fiber Optic cables

General Specifications

Output Protection Short circuit, Reverse polarity, False pulse, Transient noise

Housing Materials ABS resin, polycarbonate cover

Cable Construction 2m (6.5ft) 500V PVC jacketed 24AWG multiĆconductor

Supplied

Accessories

Operating

Environment

Vibration 10-55Hz, 1mm amplitude, Meets or exceeds IEC 947-5-2

Ambient

Temperature

Relative

Humidity

Approvals UL listed and CSA certified, and CE marked for applicable

Emitter LED Visible red 660nm: 42FT-F2LNA-XX

Connections Cable:

cable

Adjustment screwdriver, 1.25mm diameter fiber optic cable adaptors

NEMA 1, 4X, 12, 13 and IP66 (IEC 529) (Mounting bracket not NEMA 4X)

Shock 30G, Meets or exceeds IEC 947-5-2

-25°C to +55°C (-13°F to +131°F)

85%

directives

Visible green 565nm: 42FT-F3LNA-XX Visible blue 450nm: 42FT-F6LNA-XX

5Ćconductor PVC 3Ćpin pico quickĆ jacketed cable 2m (6.5ft) disconnect style

42FT-F2LNA-A2 42FT-F2LNA-Y3 42FT-F2LPA-A2 42FT-F2LPA-Y3

42FT-F3LNA-A2 42FT-F3LNA-Y3 42FT-F3LPA-A2 42FT-F3LPA-Y3

42FT-F6LNA-A2 42FT-F6LNA-Y3 42FT-F6LPA-A2 42FT-F6LPA-Y3

Wiring

NPN Output

Cable

Brown: 12V-24V DC

Black: Output

Orange: Stability Output

Blue: -DC

Pink: External Set

Load

Remote Self

Teach Activate

QuickĆDisconnect

Note: Details regarding connection of Allen-Bradley Bulletin 42FT photoelectric sensors to Allen-Bradley Program m able Controllers

can be found in publication 42-2.0.

Brown

Black

Blue

PNP Output

Cable

Brown: 12V-24V DC

Black: Output

Orange: Stability Output

Blue: -DC

Pink: External Set

Brown

Black

Blue

Load

Pic o

Remote Self

Teach Activate

Dimensions—mm (inches)

12-24V DC

Light/Dark

100mA

Diffuse

Transmitted Beam

Light Level

(Margin) Indicator

Light

Set Indicator (Flashes During Automatic Sensitivity Setting)

Set Self Teach+3+2+

Self Teach Button

(Steps Sensitivity or Hysteresis Up or

Down Depending on Mode Switch

Selection)

Cable Clamp

Normal/Off

Delay Switch

Light Operate/Dark

Operate Switch

(0.511

)

13.5 (0.413)

(0.531)

Mode Switch (Run, Set,

Auto, Hysteresis, Sensitivity)

(1.338)

10.5

Visible Red, Green, or Blue Fiber Optic

Operating

Voltage

12-24V DC Light/Dark

±10%

Supply

Current

Output

Energized

60mA PNP

Selectable

50mA NPN

Type

(0.354)

(0.078)

(0.118)

(0.669)

6.7 (0.118)

(0.263)

4.5

(0.177)

(0.354)

Output Characteristics

Max Load

Current

Output: 100mA

Stability:

50mA

Max Leakage

Current

(2.204)

(1.850)

35.3

(1.389)

Response

Time

0.5mA 500µs

(0.157)

(0.354)

(0.157)

(0.472)

13.5

(0.531)

Dia. 3.2 x 3.6

(0.126 x 0.142) 2 Places

Emitter LED Catalog Number

Red 42FT-F2LPA-A2

Red 42FT-F2LPA-Y3

Green 42FT-F3LPA-A2

Green 42FT-F3LPA-Y3

Blue 42FT-F6LPA-A2

Blue 42FT-F6LPA-Y3

Red 42FT-F2LNA-A2

Red 42FT-F2LNA-Y3

Green 42FT-F3LNA-A2

Green 42FT-F3LNA-Y3

Blue 42FT-F6LNA-A2

Blue 42FT-F6LNA-Y3

Typical Glass Fiber Optic Cable Selection—mm (in)

LED Sensing Mode

Diffuse

(Bifurcated Fiber)

Red

Transmitted Beam

(Individual Fiber)

Diffuse

(Bifurcated Fiber)

Green

Transmitted Beam

(Individual Fiber)

Diffuse

(Bifurcated Fiber)

Blue

Transmitted Beam

(Individual Fiber)

Plastic

Fiber

Diameter

Typical

Fiber

Model

MaxiĆ mum

Range

1 (0.040) 99-94 110 (4.3)

0.5 (0.020) 99-808 30 (1.2)

1 (0.040) 99-90 350 (13.2)

0.5 (0.020) 99-822 95 (3.7)

99-94 13 (0.5)

99-90 35 (1.4)

1 (0.040)

99-94 18 (0.7)

99-90 60 (24)

Mode Switch

AUTO (Factory Setting)

Allows Self-Teach to be initiated with the pushbutton on the sensor (Local) or through an external connection (Remote). Sensor indicators and outputs are active and function normally. Sensors may be operated in AUTO mode. Sensors must be operated in AUTO mode when Remote Self-Teach is required.

SET

Allows self-teach to be initiated with the pushbutton on the sensor (Local) only. The external Self-Teach connection (Remote) is ignored. Sensor indicators function normally. Both sensor and stability outputs are inhibited.

RUN

RUN mode is recommended for sensor operation in all applications where Remote Self-Teach will not be used. Sensor indicators and outputs are active and function normally. No adjustments, Local or Remote, are possible while the sensor is in RUN mode.

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