Allen-Bradley 42JS VisiSight Installation and Operating Instructions

Allen-Bradley
Brand
Allen-Bradley
Model
42JS VisiSight
Type
Installation and Operating Instructions

Allen-Bradley 42JS VisiSight is a miniature rectangular housing photoelectric sensor with a variety of models to meet different sensing needs.

With its visible light source, the 42JS VisiSight is easy to align and provides indication of unstable sensor operation. The patented ASIC design offers linear sensitivity adjustment, stability indication, and excellent noise immunity.

The 42JS VisiSight is compact and sealed, with a cavity-free design that minimizes dust and debris collection while allowing for easy sensor cleanup. It has a threaded metal M12 or M8 connector on pigtail and 360° visible LED status indicators.

Allen-Bradley 42JS VisiSight is a miniature rectangular housing photoelectric sensor with a variety of models to meet different sensing needs.

With its visible light source, the 42JS VisiSight is easy to align and provides indication of unstable sensor operation. The patented ASIC design offers linear sensitivity adjustment, stability indication, and excellent noise immunity.

The 42JS VisiSight is compact and sealed, with a cavity-free design that minimizes dust and debris collection while allowing for easy sensor cleanup. It has a threaded metal M12 or M8 connector on pigtail and 360° visible LED status indicators.

1
Installation and Operating Instructions
Bulletin 42JS VisiSightt Photoelectric Sensors
SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Refer to the product catalog pages for additional information.
Description
The 42JS VisiSight family of sensors offers a full range of
sensing modes in a miniature rectangular housing. Visible
light source is offered in all models for ease of alignment.
Additional transmitted beam infrared LED source models are
offered for superior crosstalk immunity.
The 42JS VisiSight family provides an indication if the sensor
operation is unstable. An indicator flashes if the signal level is
too close to the detection threshold. This helps in easy
alignment of the sensor and forewarns against detection of a
background.
Features
S Visible light source offered on all models for ease of
alignment
S Optional snap-on adaptor for 18 mm mounting
S Patented ASIC design offers linear sensitivity adjustment,
stability indication, and excellent noise immunity
S Compact sealed housing and cavity-free design to
minimize collection of dust and debris while allowing for
easy sensor cleanup
S Threaded metal M12 or M8 connector on pigtail
S 360° visible LED status indicators
S Additional transmitted beam models available with Infrared
light source for superior cross talk immunity
S Input to disable light source on transmitted beam emitter
Specifications
Certifications cULus and CE marked for all applicable directives
Environmental
Operating
Environment
IP67
Operating
Temperature [C (F)]
-- 2 0 …+60° (--4…140°)
Vibration 10…55Hz, 1 mm amplitude; meets or exceeds IEC
60947--5--2
Shock 30 g with 1 ms pulse duration, meets or exceeds IEC
60947--5--2
Relative Humidity 5…95% (noncondensing)
Ambient Light
Immunity
Incandescent light 5000 Lux
Specifications (continued)
Optical
Standard
Diffuse
Background
Suppression
Polarized
Retro
Trans-
mitted
Beam
Sensing Range
800 mm
(31.5 in.)
250 mm
(9.8 in.)
6…55 mm
(0.24…2.17 in.)
2…130 mm
(0.07…5.12 in.)
30 mm…
3.5 m
(1.18 in…
11.5 ft)
10 m
(32.8 ft)
Field of View
4° 14°
2.8° 4°
5.5° 17°
Spot Size at max.
rated range
60 mm
(2.36 in.)
7.6 mm (0.30 in.)
@55mm
175 mm
(6.89 in.)
700 mm
(27.56 in.)
40 mm
(1.57 in.)
11.5 mm (0.45 in.)
@ 130 mm
Light Source Visible red (645 nm) Visible red
(645 nm)
& Infrared
(850 nm)
Sensitivity
Adjustments
Single-turn
pot.
No adjustment Single-turn
pot.
adjust-
ment and
no adjust-
ment
models
Single-turn
pot.
Electrical
V oltage 10…30V DC
Current
Consumption
25 mA
Protection Short circuit, overload, false pulse, transient noise, reverse
polarity
Outputs
Response Time 1ms
Output Type PNP or NPN by cat. no.
Output Mode Complementary light and dark operate
Output Current 100 mA
Output Leakage
Current
10 µAmax
Mechanical
Housing Material ABS
Lens Material PMMA
Cover Material PMMA
Connection Types 2 m (6.5 ft) cable, 4-pin DC micro (M12) QD, 4-pin pico (M8)
QD
Supplied
Accessories
Mounting hardware (M3x25) stainless steel screws
Optional
Accessories
Snap-on adaptor for 18 mm mounting (IP40), mounting
brackets, cordsets, reflectors
See Typical Response Curves for sensing range with the 18 mm mounting adaptor.
For 55 mm background suppression models (42JS--B2MNB1--F4 and 42JS--B2MPB1--F4).
For 130 mm background suppression models (42JS--B2MNB2--F4 and 42JS--B2MPB2--F4).
For 800 mm diffuse models (42JS--D2MNA1--F4 and 42JS--D2MPA1--F4).
For 250 mm diffuse models (42JS--D2MNA2--F4 and 42JS--D2MPA2--F4).
2
Sensor Indicators
Yellow Output
LED
min max
Green LED
Sensitivity
Adjustment
Knob
LED Status
Green
OFF Power is Off
ON Power is On
Flashing (6 Hz) Unstable ( 0.5 < Margin < 2)
Flashing (1.5 Hz) Output short-circuit protection active
Yellow
OFF
Output de-energized
ON
Output energized
Black wire or pin 4 of connector.
Background Suppression Sensors
Target
Note: Due to the detection method, targets travelling
horizontal to the sensor’s optics are detected. Targets
travelling vertically may not be accurately detec ted. For
reliable background suppression, a minimum separation
distance of 6 mm is recommended between the target and
the background.
Sensor Alignment
1. Ensure that the sensitivity knob is set at its maximum
(factory default) setting.
2. Pan the sensor left, right, up, and down to center the beam
on the sensed object (for diffuse), reflector (for
retroreflective) or transmitter (for transmitted beam). Affix
the sensor position when the green LED is ON (not
flashing) and the yellow output LED is ON (light sensed
and L.O. output energized). This set up assures a good
margin and that the signal received is greater than twice
the signal required to energize the L.O. output.
3.
a. For diffuse applications, remove the object being sensed
and observe the green LED. If the green LED is flashing
(at 6 Hz), it indicates that the sensor is receiving more
than half the signal required to energize the L.O. output
when there should be minimal or no received signal. It
indicates that the sensor is getting close to detection of
the background. Stability may be optimized by reducing
the reflectivity of the background or reducing the
sensitivity. Reducing the sensitivity shortens the sensing
range. If sensitivity is reduced, check that both the green
and yellow LEDs are on when the object is detected
(step 2 above). In applications where full range is
needed, i.e., sensitivity cannot be reduced, the green
LED may be left flashing.
b. For retroreflective and transmitted beam applications,
place the object to be sensed in the beam path and
observe the green LED. If the green LED is flashing (at
6 Hz), it indicates that sensor is receiving more than half
the signal required to energize the L.O. output when
there should be minimal or no received singal. It
indicates that the object being detected is letting some
light go through (semi-transparent or too small in size).
Adjust sensitivity and repeat step 2.
Crosstalk Avoidance
For applications of transmitted beam sensors requiring
adjacent pairs to be mounted in close proximity, use red LED
and infrared LED pairs as adjacent pairs.
The following spacing (center to center) between the adjacent
pairs should be maintained to avoid crosstalk:
1. Red LED pair adjacent to infrared LED pair:
a. 60 mm (2.4 in.) for sensing range up to 1.6 m (4.8 ft)
b. 20 mm (0.8 in.) for sensing range greater than 1.6 m
(4.8 ft)
2. Two adjacent pairs of red LED models or two adjacent
pairs of infrared LED: 360 mm (14 in.)
Two pairs of red LED or two pairs of infrared LED can be
mounted adjoining each other by transposing the emitter and
receiver positions of the second pair vs. the first pair. There is
no crosstalk as each receiver only receives signal from one
emitter.
Mounting the Sensor
Securely mount the sensor on a firm, stable surface or
support. An application which is subject to exc essive vibration
or shifting may cause intermittent operation. Adaptors and
mounting brackets are available for a flexible installation that
may include vibration and shock while shifting. See
Accessories section for more details.
Wiring Diagrams
Cable connection is shown in the following diagrams. Pin
numbers correspond to an M12 or M8 male connector on the
sensor.
4
3
1
2
3
2
1
4
M12 Male M8 Male
PNP Models with Complementary Outputs
Brown (1)
White (2)
Black (4)
Blue (3)
Load
Load
+
–
LO
DO
PNP Models with
Complementary Outputs
NPN Models with
Complementary Outputs
Brown (1)
White (2)
DO
Black (4)
Blue (3)
Load
Load
+
–
LO
Transmitted Beam Emitter
Brown (1)
Black (4)
Blue (3)
+
–
For normal operation, black wire (pin 4) needs no connection. To disable light source, connect
black wire (pin 4) to +V.
3
Approximate Dimensions [mm (in.)]
IMPORTANT
To avoid damage to the sensor or
mounting adaptor follow torque
specifications.
10.0
(0.40)
31.6 (1.24)
32.3 (1.27)
17.3
(0.68)
M18 X 1.0
thread
M18 Mounting Nut
33.0
(1.30)
35.0
(1.38)
14.0
(0.55)
25.4
(1.00)
26.4
(1.04)
3.0
(0.12)
20.0 (0.79)
20.6 (0.81)
16.0
(0.63)
Clearance for
M3 or #4 --
(2 places)
Sensitivity
Adjustment
40 screw
Accessories
18 mm Snap-On Adaptor
The sensor can be mounted using an 18 mm snap-on adaptor
(60--AJS--18) as shown below. Line up the slotted hole with
the slotted hole on the sensor and snap on.
To remove the sensor from the adaptor, undo the snap by
using a flat screwdriver.
6 0 -- A J S -- 1 8
60--2657
60- BJS- L1—Mounting Bracket
12.0
(0.47)
18.6
(0.73)
33.0
(1.30)
14.0
(0.55)
24.0
(0.95)
8.0
(0.32)
15°
R.25.4
(R.1.00)
60- BJS- L2—Mounting Bracket
12.0
(0.47)
33.0
(1.30)
14.0
(0.55)
38.9
(1.53)
18.6
(0.73)
8.0
(0.32)
R.25.4
(R.1.00)
20°
10°
Swivel/Tilt Mounting
6 0 -- B J S -- L 2
60--2619
Damage may occur to snap-on adaptor if torque above 15 in•lb is applied to the 18 mm mounting nut.
In high vibration applications, use mounting hardware supplied with the sensor to attach the 18 mm adaptor to the sensor.
Damage may occur to the sensor housing if torque above 2.5 in•lb is applied to the mounting screws.
4
Typical Response Curves
Standard Diffuse Standard Diffuse—Beam Pattern
1000
(39.4)
800 mm
250 mm
without 18 mm s noutwith 18 mm s nout
Distance [mm (in.)]
10
(0.39)
100
(3.9)
1000
(39.4)
1
10
100
1000
Operating Margin
800 mm
250 mm
-- 4 0
-- 3 0
-- 2 0
-- 1 0
0
10
20
30
40
Distance [mm (in.)]
Beam Diameter (mm)
0 100
(3.9)
200
(7.87)
300
(11.8)
400
(15.7)
700
(27.5)
800
(31.5)
500
(19.6)
600
(23.6)
900
(35.4)
Background Suppression (55 mm) Background Suppression (55 mm)—Beam Pattern
1
10
100
10000
Distance [mm (in.)]
Operating Margin
-- 5
-- 4
-- 3
-- 2
-- 1
0
2
3
4
5
Distance [mm (in.)]
Beam Diameter (mm)
0.1
(0.004)
1
(0.04)
10
(0.39)
100
(3.9)
010
(0.39)
20
(0.78)
30
(1.18)
40
(1.57)
50
(1.96)
60
(2.36)
1000
Without 18 mm
adaptor
With 18 mm
adaptor
1
Without 18 mm
adaptor
With 18 mm
adaptor
Background Suppression (130 mm) Background Suppression (130 mm)—Beam Pattern
1
10
100
10000
Distance [mm (in.)]
Operating Margin
-- 6
-- 4
-- 8
-- 2
-- 1 0
0
2
10
4
6
Distance [mm (in.)]
Beam Diameter (mm)
0.1
(0.004)
1
(0.04)
10
(0.39)
100
(3.9)
020
(0.79)
40
(1.57)
80
(3.15)
100
(3.93)
120
(4.72)
60
(2.36)
1000
Without 18 mm
adaptor
With 18 mm
adaptor
8
Without 18 mm
adaptor
With 18 mm
adaptor
1000
(39.3)
140
(5.51)
Polarized Retroreflective Polarized Retroreflective—Beam Pattern
0
-- 8 0
-- 6 0
-- 4 0
-- 2 0
20
40
60
80
100
Beam diameter [mm]
1
10
100
Operating Margin
92--47 with
18 mm adaptor
92--47
92--124 with
18 mm adaptor
92--124
Reflector
92--47
Reflector
92--124
Reflector
0.1
(0.33)
1
(3.28)
10
(32.8)
00.4
(1.3)
0.8
(2.6)
1.2
(39.4)
1.6
(5.2)
2.8
(9.2)
3.2
(10.4)
2.0
(6.6)
2.4
(7.9)
3.6
(11.8)
0.01
(0.03)
Distance [m (ft)]
Distance [m (ft)]
Transmitted Beam—Visible Red and Infrared Transmitted Beam—Beam Pattern
-- 2 5 0
-- 2 0 0
-- 1 5 0
-- 1 0 0
-- 5 0
0
50
100
150
200
250
Beam Diameter [mm]
1
10
100
1000
Operating Margin
Infrared
Visible red
Without 18 mm
adaptor
With 18 mm
adaptor
0.1
(0.33)
1
(3.28)
10
(32.8)
02
(6.56)
4
(13.1)
6
(19.7)
8
(26.2)
10
(32.8)
100
(328)
Distance [m (ft)]
Distance [m (ft)]
PN--76703
10000109837 Ver 00
Printed in USA
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4

Allen-Bradley 42JS VisiSight Installation and Operating Instructions

Allen-Bradley
Brand
Allen-Bradley
Model
42JS VisiSight
Type
Installation and Operating Instructions

Allen-Bradley 42JS VisiSight is a miniature rectangular housing photoelectric sensor with a variety of models to meet different sensing needs.

With its visible light source, the 42JS VisiSight is easy to align and provides indication of unstable sensor operation. The patented ASIC design offers linear sensitivity adjustment, stability indication, and excellent noise immunity.

The 42JS VisiSight is compact and sealed, with a cavity-free design that minimizes dust and debris collection while allowing for easy sensor cleanup. It has a threaded metal M12 or M8 connector on pigtail and 360° visible LED status indicators.

Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents