Allen-Bradley 42JT-E8EZB1-F4 Installation Manual

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Installation Instructions
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Yel low LED
Push button
Green LED
42JT VisiSight™ Photoelectric Color Mark Sensors with IO-Link
Default Settings:
Output Mode: Light Operate (Output ON when the color mark is
detected after being taught)
Output Type: PNP or NPN (Push-Pull) or IO-Link

LED Status

The table below provides LED status in the RUN mode i.e., during operation, the sensor is always in RUN mode, except when being taught.

Push-Pull PNP/NPN Operation

OFF Power is OFF
Green
Yel l ow *
*LED status shown when the load is connected as PNP. The LED status reverses when the load is
connected as NPN (e.g. LED is ON when the output is de-energized and OFF when is energized).

IO-Link Operation

Green
Yel l ow *

Mounting the Sensor

Securely mount the sensor on a firm, stable surface or support. An application which is subject to excessive vibration or shifting may cause intermittent operation. For installation convenience, Rockwell Automation offers a wide range of mounting brackets (see the Accessories section for more details).
ON Power is ON
Flashing (1.5 Hz)
Output short circuit protection
active
OFF Output de-energized
ON Output energized
OFF Power is OFF
Flashing (1 Hz) Power is ON
OFF Output de-energized
ON Output energized

General Specifications

42JT-F5LET1-

Environmental

Certifications cULus and CE Marked for all applicable directives
Operating Environment
Vibration 10…55 Hz, 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
Operating Temperature [C (F)]
Storage Temperature [C (F)] -20…+80° (-4…+179°)

Optical

Light Source Visible white LED
Sensing Range [mm (in.)] 12 (0.47)
Tolerance [mm (in.)] +/- 2.5 (+/- 0.1)
Spot Size [mm (in.)] 1 x 4 (0.4 x 0.15)
Adjustments Push button

Electrical

Volt age
Current Consumption 25 mA max.
Sensor Protection Reverse polarity, short circuit protection

Outputs

Response Time 50 μs
Output Type PNP or NPN (Push-Pull)
Output Function Selectable light operate or dark operate
Output Current 100 mA max.
Output Leakage Current 10 μA max.

Mechanical

Housing Material ABS
Lens Material PMMA
Cover Material PMMA
Optional Accessories Mounting brackets, cordsets
1
See Connection Types table.
2
ECOLAB on -P4 and -A2 models only.
3
UL: -20…+50°C (-4…122°F)
4
UL: Class 2 source
IP67, IP69K, ECOLAB
-20…+60° (-4…+140°)
10…30V DC
2
3
4

Connection Types

Cat. No. Suffix Description
-A2 2 m cable
-P4 Integral 4-pin pico (M8) QD
-F4 4-pin DC micro (M12) QD on 150 mm (6 in.) pigtail
-Y4 4-pin pico (M8) QD on 150 mm (6 in.) pigtail
1
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Sensor Alignment

10º
t > 3 s
t < 0.5 s
t > 6 s
Position the 42JT VisiSight contrast sensor so that the distance from the object to the sensor is 12 mm. High reflectivity surfaces can impact the reliability of the color mark detection. We recommend that you angle the sensor 10° to help improve the color mark detection as shown below.
VisiSight™ Configuration
The 42JT VisiSight is configured using the push button or Remote Teach or via IO-Link and the LED indicators on the sensor. There are four features that can be configured:
• Static Teach
• Dynamic Teach (running process)
• Light operate (LO) or dark operate (DO) output
• Push button lock/unlock
The sensor output is disabled during Teach.

Te ac h

Teaching the color mark is a two step process:
1. Teach the color mark (first condition).
Place the sensor 12 mm (0.47 in.) from the color mark and aim it at the mark. Press and hold the button for three seconds, until the yellow LED starts flashing. Release the button.
Although the sensor will operate within a tolerance of +/-2.5 mm (0.1 in.) from the focal distance, the sensor should be installed at 12 mm (0.47 in.) for optimal performance.
2. Teach the background (second condition).
Present the background to the sensor. Press and release the button. The teach process is complete.
If the push button is not pressed within 30 seconds, the sensor exits teach mode and returns to RUN mode without learning the new setting.
However, if the contrast of the color mark vs. the background is not sufficient (e.g., a yellow mark on a white background) the sensor is unable to detect the color mark. If that is the case, the white LED (light spot) flashes 10 times.
A flashing white LED (light spot) indicates the following:
Flashes (10 times): insufficient contrast level Flashes (3 times): small contrast level No flashing: good contrast level
If the white LED flashes, angle the sensor 10° (see “Sensor Alignment,” at left), and repeat the teach process.
If the sensor is still unable to detect the color mark and indicates “insufficient contrast level,” a higher end sensor may be necessary, such as the 45CRM color mark sensor.

Dynamic Teach (Running Process)

If the targets to be detected are moving with the sensor aimed at the running process, press and hold the button for three seconds, until the yellow LED starts flashing. The color mark will automatically be taught in the next 30 seconds provided the sensor sees two cycles of mark and background.

Teach Light Operate (L.O.) or Dark Operate (D.O.)

The default setting of the output is Light Operate (L.O.: output ON when the color mark is detected after being taught.)
If the application requires the output to turn OFF when the color mark is detected, the setting may be changed to Dark Operate (D.O.)
1. To access the teach output mode setting:
Press and hold button for six seconds, until green LED starts flashing. Release the button. The current setting is indicated by the yellow LED:
L.O.: Yellow LED ON
D.O.: Yello w LED OFF
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2. To change the sensor output mode setting:
M12 Male M8 Male
Output (Push-Pull PNP/NPN or IO-Link)
Remote Teach/Lock
1
+V
-V
Brown (1)
White (2)
Black (4)
Blue (3)
t < 0.5 s
Press and release the button within ten seconds to toggle from L.O. to D.O. , the sele cti on in dica ted by the y ello w LED.

Wiring Diagrams

The quick-disconnect connector is shown in the following diagrams. The pin numbers correspond to male connectors on the sensor.
The sensor retains the setting per the last button depression and returns to the RUN mode ten seconds after the last button is depressed.

Push Button Lock/Unlock

The push button or remote teach (RT) can be used to prevent unauthorized users from changing teach settings.
To lock the push button: press and release the button three times within three seconds. Both LEDs flash synchronously for three seconds indicating that the push button is now locked.
To unlock the push button: press and release the button three times within three seconds. Both LEDs flash asynchronously for three seconds indicating that the push button is now unlocked.
Permanent Lock: The push button may be permanently locked by connecting the white wire (pin 2) to –V.

Remote Teach (RT)

The sensor can be taught remotely via the white wire (pin 2). Connection to +V acts the same as the button being pressed and no connection is the same as the button not being pressed. The sensor can be taught by following the same teach/timing sequence as used in the push button teach. For example, connect to the +V for more than three seconds to align and install the reflector, disconnect from the +V; while the reflector is in the sensor’s field of view and there is no target, connect to the +V for less than one second to complete the teach process. All push button functions can also be carried out via RT.

Micro (M12) Male QD on Pigtail and Integral Pico (M8) Male QD

1
2
4
2
1
3

Output Wiring

1
Normal operation: no connection (disabled in IO-Link operation). Remote Teach: connect to +V. Refer to the Remote Teach section. Push button lock: connect to -V. Refer to the Push Button Lock/Unlock section.

Margin Curve

120
100
80
Signal [%]
60
4
3

IO-Link

See instructions for IO-Link on www.ab.com. Remote Teach (pin 2) is disabled on IO-Link operation. If output is selected as dedicated NPN, IO-Link communication is unavailable.
3
0
7171615141312111098
Distance [mm]
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Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400
Approximate Dimensions [mm (in.)]
12
(0.47)
M8 x 1
34
(1.34)
22.9
(0.90)
25.4
(1.0)
2.6
(0.10)
20
(0.79)
12
(0.47)
34
(1.34)
22.9
(0.90)
25.4
(1.0)
2.6
(0.10)
20
(0.79)
2.8
(0.11)
Clearance for
M3 or #4-40 screw
(2 places)
Clearance for
M3 or #4-40 screw
(2 places)

Accessories

Stainless Steel Mounting Brackets
1) 60-BJS-L1
°
15
8 (0.32)
24
(0.95)
2) 60-BJT-L2
14
(0.55)
20°
30°
12
(0.47)
R 25.4 (R 1.0)
18.6
(0.73)
10°
33
(1.3)
63.5 (2.5)
8
(0.32)
14
(0.55)
R 25.4
(1.0)
12
(0.47)
18.6
(0.73)
33
(1.3)
3) 60-2619 VisiSight compatible swivel/tilt mounting bracket
Rockwell Automation maintains current product environmental information on its website at
http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page.
Allen-Bradley, Rockwell Software, and R ockwell Automation are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.
Publication 42JT-IN005C-EN-P - 10000234774 Ver 02 - September 2015 068-14549 Supersedes 42JT-IN005B-EN-P - 10000234774 Ver 01 - December 2012
Copyright © 2015 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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