PHOTOSWITCHR Photoelectric Sensors
1–137
Description
The
42CB family of photoelectric
sensors shares many of the same
features as the 42CA general purpose
line but of
fer additional enhancements
in electrical, mechanical, and optical
characteristics. These include a faster
response time, both light/dark operate
modes, right angle package, dual LED
outputs, sensitivity adjustment, and
increased sensing range.
The 42CB is available in three sensing
modes to cover typical applications.
The infrared light source provides
excellent range for the sensor size.
DC operation ensures compatibility with
measurement and control circuits found
in today’
s factory automation systems.
Signaling of target detection is made via
either an NPN or PNP output. This
output is short-circuit protected to
protect the sensor from possible
damage. Light or dark operate condition
is selected by wiring not model number
.
A single turn adjustment is included to
set the optical sensitivity of the sensor
.
T
wo LED indicators are provided to
indicate both power and output status of
the sensor.
As an alternative to the 18mm
cylindrical package, Rockwell
Automation/Allen-Bradley also of
fers
the RightSight
t
photoelectric sensor
.
That product is of a right angle design
to conserve space in many
applications. Refer to page
1–31
for
further information on this product.
General Specifications
Features
•Right angle 18mm package
•Wide selection of sensing modes
•24VDC operation
•
NPN or PNP outputs
•
Selectable light/dark operate modes
•Fast 500µ
s response time
•V
ariety of connection types
General Information
Typical
Wiring Diagrams
page 1–138.
.
Dimensions page 1–138
. . . . . . . . . . . . .
Sensing Modes
Retroreflective page
1–139.
. . . . . . . . .
Polarized Retroreflective
page 1–140
. .
Standard Dif
fuse page 1–141
. . . . . . . .
Accessories
Quick-Disconnect Cables page 5–1
. . .
Mounting Assemblies page 1–301
. . . .
Reflectors, Reflective T
ape page 1–311
42CB
Light Source
Unit Protection
Supply Voltage
Current Consumption
Output Type
Output Mode
Output Rating
Response Time
Housing Material
Lens Material
LED Indicators
Connection Types
Supplied Accessories
Optional Accessories
Operating Environment
Vibration
Shock
Operating Temperature
Relative Humidity
Approvals
Infrared 880nm, visible red on polarised retroreflective model
Reverse polarity, output short-circuit protection (SCP)
10–30V DC
20mA maximum
NPN or PNP
Light or dark operate selectable via wiring
100mA @ 28V DC
500µs
Polyamide
Acrylic
See User Interface on page 1–138
2m 300V cable, 4-pin DC micro QD
None
Mounting brackets, reflectors, cordsets
NEMA 3, 4X, 12, 13 (IP65)
10–55Hz, 1mm amplitude, Meets or exceeds IEC 60947–5–2
30g with 1ms pulse duration, Meets or exceeds IEC 60947–5–2
–25_C to +70_C (–13_F to +158_F)
35…85%
UL listed, CSA certified, CE marked for all applicable directives
PHOTOSWITCHR Photoelectric Sensors
1–138
User Interface
Label Color State Status
Otpt
Red
OFF Sensor output de-activated
Output Red ON Sensor output activated
Power
Green
OFF Sensor not powered
Power Green ON
Sensor powered
Wiring Diagrams
Brown
1
Black
4Out
Blue
3
Selection
of the output state (white wire must be
connected for operation): L.O. (White –), D.O. (White +)
NPN
Output
White
2
L.O./D.O.
Black
4
Blue
3
Out
Brown
1
White
2
PNP Output
+
—
+
—
Load
Load
Micro
Quick-Disconnect V
ersions
(see below)
L.O./D.O.
(see below)
1 2
3
4
( – )
10–30V DC ( + )
Output
L.O./D.O.
Output Select
Cable
V
ersion
Face
V
iew Male Receptacle (Sensor)
Dimensions—mm (inches)
12
(0.47)
Power
Indicator
(Green)
M18 X 1
58
(2.28)
4
(0.16)
80
(3.14)
10
(0.39)
6
(0.24)
Indicators
Cable
V
ersion
Adjustment
Potentiometer
Output
Indicator
(Yellow)
21
(0.83)
24
(0.95)
Dia. 4.7
(0.185)
Quick-Disconnect
V
ersion
M18 X 1
58
(2.28) 4
(0.16)
80
(3.14)
6
(0.24)
14.5
(0.57)
M12 X 1
Indicators
42CB
PHOTOSWITCHR Photoelectric Sensors
1–139
ÎÎ
ÎÎ
ÎÎ
ÏÏ
ÏÏ
ÏÏ
Object
to be
Sensed
Specifications
Field of View 1.3°
Emitter LED Infrared 880nm
QD Cordsets and Accessories
Description
Catalog/Page
Number
DC Micro QD Cordset,
4-pin, 2m 889D–F4AC–2
Other Cordsets Available 5–1
Mounting Assemblies 60–2664
76mm (3in) Diameter
Reflector 92–39
32mm (1.25in) Diameter
Reflector 92–47
Typical Response Curve
100
10
1
0.1
0m 2m
(6.5ft)
4m
(13.1ft)
6m
(19.6ft)
8m
(26.2ft)
Distance to 76mm Reflector Model 92–39
Operating Margin
Selection Guide
Operating
V
oltage
Supply Current
Sensing
Distance
@ 1X Margin
Output
Energized
Output Type
Capacity
Response Time
Max
Leakage
Current Connection Type
Catalog Number
NPN
100mA
2m 300V cable 42CB–U1LNA–L2
10–30V DC 80mm
(
3in
)
to Li
g
ht/Dark
100mA
500µs
10µA
4-pin DC micro QD 42CB–U1LNA–M4
10
–
30V
DC
20mA
80mm
(3in)
to
7.2m (23.6ft)
Light/D
a
rk
Selectable PNP
100mA
10µA
2m 300V cable 42CB–U1LPA–L2
100mA
500µs4-pin DC micro QD 42CB–U1LPA–M4
42CB
Retroreflective
High Speed 18mm Cylindrical Style
PHOTOSWITCHR Photoelectric Sensors
1–140
ÎÎ
ÎÎ
ÎÎ
ÏÏ
ÏÏ
ÏÏ
Object
to be
Sensed
Specifications
Field of View 1.6°
Emitter LED
Visible red 660nm
QD Cordsets and Accessories
Description
Catalog/Page
Number
DC Micro QD Cordset,
4-pin, 2m 889D–F4AC–2
Other Cordsets Available 5–1
Mounting Assemblies 60–2664
76mm (3in) Diameter
Reflector 92–39
32mm (1.25in) Diameter
Reflector 92–47
Typical Response Curve
100
10
1
0.1
0m 2m
(6.5ft)
4m
(13.1ft)
6m
(19.6ft)
8m
(26.2ft)
Distance to 76mm Reflector Model 92–39
Operating Margin
Selection Guide
Operating
V
oltage
Supply Current
Sensing
Distance
@ 1X Margin
Output
Energized
Output Type
Capacity
Response Time
Max
Leakage
Current Connection Type
Catalog Number
NPN
100mA
2m 300V cable 42CB–P2LNA–L2
10–30V DC 3mm
(
0.12in
)
to Li
g
ht/Dark
100mA
500µs
10µA
4-pin DC micro QD 42CB–P2LNA–M4
10
–
30V
DC
20mA
3mm
(0
.
12in)
to
2.8m (9.2ft)
Light/D
a
rk
Selectable PNP
100mA
10µA
2m 300V cable 42CB–P2LPA–L2
100mA
500µs4-pin DC micro QD 42CB–P2LPA–M4
42CB
Polarized Retroreflective
High Speed 18mm Cylindrical Style
PHOTOSWITCHR Photoelectric Sensors
1–141
Object
to be
Sensed
Specifications
Field of View
See Selection Guide
Transmitting LED Infrared 880nm
QD Cordsets and Accessories
Description
Catalog/Page
Number
DC Micro QD Cordset,
4-pin, 2m 889D–F4AC–2
Other Cordsets Available 5–1
Mounting Assemblies 60–2664
Typical Response Curve
100
10
1
0.1
0
200mm
(7.8in)
400mm
(15.7in)
500mm
(19.6in)
100mm
(3.9in)
300mm
(11.8in)
600mm
(23.6in)
Distance to White Target
Operating Margin
Selection Guide
Operating
V
oltage
Supply Current
Sensing
Distance
@ 1X Margin
Output
Energized
Output Type
Capacity
Response Time
Max
Leakage
Current
Field
of
View Connection Type
Catalog Number
0.2m
(
7.9
)
to
15°
2m 300V cable 42CB–D1LNAF–L2
0
.
2m
(7
.
9)
to
150mm (5.9in) NPN
100mA
15°4-pin DC micro QD 42CB–D1LNAF–M4
0.2m
(
7.9
)
to
100mA
500
µ
s
55°
2m 300V cable 42CB–D1LNAL–L2
10–30V DC
0
.
2m
(7
.
9)
to
1000mm (39.4in)
Li
g
ht/Dark
500µs
10µA
5.5°4-pin DC micro QD 42CB–D1LNAL–M4
10
–
30V
DC
20mA 0.2m
(
7.9
)
to
Light/D
a
rk
Selectable 10µA
15°
2m 300V cable 42CB–D1LPAF–L2
0
.
2m
(7
.
9)
to
150mm (5.9in) PNP
100mA
15°4-pin DC micro QD 42CB–D1LPAF–M4
0.2m
(
7.9
)
to
100mA
500
µ
s
55°
2m 300V cable 42CB–D1LPAL–L2
0
.
2m
(7
.
9)
to
1000mm (39.4in)
500µs
5.5°4-pin DC micro QD 42CB–D1LPAL–M4
42CB
Standard Diffuse
High Speed 18mm Cylindrical Style
