Rockwell Automation 42FA User Manual
Installation Instructions
PHOTOSWITCH
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Bulletin 42FA Slim Fiber Optic
Description
The Bulletin 42FA Slim Fiber Optic sensors are useful for
applications where compact Fiber Optic sensing is required.
Only 8mm x 10mm in diameter, these sensors offer range and
response times similar to much larger Fiber Optic sensors.
Bulletin 42FA Slim Fiber Optic sensors are supplied with a
DIN rail mounting bracket. Over 40 compatible standard
plastic fiber optic cables are available.
Features
S Dual LED indicators: output (red), stability (green)
S Visible red light source
S Selectable light or dark operate
S Can be DIN rail mounted
Wiring
NPN Output PNP Output
Cable
Brown: 12V--24V DC
Black: Output
Blue: --DC
Load
Features (continued)
S Reverse polarity protection
S False pulse protection
S Transient noise protection
General Specifications
Relative Humidity 85% max
Ambient Temperature -- 1 3 F to +131F(--25Cto+55C)
Housing Material Noryl
Operating Environment NEMA 1, 12, 13 and IP65
Approvals UL listed and CSA certified, class 2 source required
Weight 40 grams (1.4 oz) 42FA--F2LNA --A2
65 grams (2.2 oz) 42FA--F2LNA- -P3
Cable
Brown: 12V--24V DC
Black: Output
Blue: --DC
Load
12--24V DC
Brown
Connector
Indicator
42FA--F2LPA-- A2
42FA--F2LPA-- P3
-- D C
Blue
Output
Black
Dimensions—mm (inches)
Pico Quick-DisconnectVersions
42FA--F2LPA--P3
42FA--F2LNA--P3
10
(0.39)
Cable Versions
42FA--F2LPA--A2
42FA--F2LNA--A2
11
(0.433)
Fiber Attachment
Screw
Output Indicator
Sensitivity Potentiometer
60.7
(2.389)
6.4
20.3
(0.799)
(0.251)
65.7
(2.59)
(0.314)
8
Stability Indicator
End of Pico Connector
Light Operate/
Dark Operate Switch
5
(0.196)
13
(0.511)
Start of
QuickDisconnect
Cable
Dia. 3.5
(0.137)
Dimensions—mm (inches) (continued)
Tip, Side, Bottom View for Both Pico Quick-Disconnect and Cable Versions
8.2
(0.322)
8.2
(0.322)
4.3
(0.169)
Dia. 2.2 (0.086)
2Places
Transmitting LED Visible red 660nm
Connections Cable:
42FA--F2LPA-- A2 3-conductor 500V PVC
42FA--F2LNA--A2 jacketed cable 6.5ft (2m)
Quick-Disconnect:
42FA--F2LPA-- P3 3-pin pico style
42FA--F2LNA--P3
Visible Red Fiber Optic
Operating
Vol tage
12--24V DC
10%
Supply
Current
25mA
30mA PNP 42FA-F2LPA-A2 42FA- F2LPA- P3
5.2
(0.204)
Visible Red Fiber Optic
Output
Energized
Light/Dark
Selectable
Typ e
NPN
0.1
14.8
(0.582)
(0.004)
Output Characteristics
Max Load
Current
100mA 0.5mA 500s
Max Leakage
Current
36.9
(1.452)
Response
Time
Catalog Number
Cable Quick-Disconnect
42FA- F2LNA- A2 42FA-F2LNA-P3
Pico Quick-Disconnect Cables
Allen-Bradley
Length
6.56ft (2m) 871A- C53- P2 45300--001 5000125--3 973778--011 RKM3--62/2M
16.4ft (5m) 871A- C53- P5 45300--002 5000125--6 973778--012 RKM3--62/5M
Catalog Number
Brad Harrison
Catalog Number
Crouse-Hinds
Catalog Number
Hirschman
Catalog Number
Lumberg
Catalog Number
Publication 75009-- 054-- 01(C)
April 1996
PrintedinJapan
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