Rockwell Automation 42FT Self-Teach Fiber Optic - Manual

1
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
cable
Supplied
Accessories
Adjustment screwdriver, 1.25mm diameter fiber optic cable
adaptors
Operating
Environment
NEMA 1, 4X, 12, 13 and IP66 (IEC 529) (Mounting bracket
not NEMA 4X)
Vibration 10-55Hz, 1mm amplitude, Meets or exceeds IEC 947-5-2
Shock 30G, Meets or exceeds IEC 947-5-2
Ambient
Temperature
-25 ° C to +55 ° C (-13 ° F to +131 ° F)
Relative
Humidity
85%
Approvals UL listed and CSA certified, and CE marked for applicable
directives
Emitter LED Visible red 660nm: 42FT-F2LNA-XX
Visible green 565nm: 42FT-F3LNA-XX
Visible blue 450nm: 42FT-F6LNA-XX
Connections Cable:
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
Brown: 12V-24V DC
Black: Output
Pink: External Set
Orange: Stability Output
Blue: -DC
Black: Output
Orange: Stability Output
Pink: External Set
Brown: 12V-24V DC
Cable
Blue: -DC
Remote Self
Teach Activate
Cable
Remote Self
Teach Activate
Load
Load
Load
Load
Brown
Black
Blue
1
3
4
Brown
Black
Blue
1
3
4
Pic
o
1 3
4
NPN Output
Cable
QuickĆDisconnect
PNP Output
Note: Details regarding connection of Allen-Bradley Bulletin 42FT photoelectric sensors to Allen-Bradley Programmable Controllers
can be found in publication 42-2.0.