Rockwell Automation 42KD User Manual
42KD Miniature Sensor
IMPORTANT
3
2
1
4
M8 Male
Installation Instructions
Original instructions in English
SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Description
The 42KD Miniature sensor provides a solution for applications in very
small confined spaces. The 42KD sensor is the smallest sensor in the
Photoelectric sensor portfolio. It offers various sensing modes, sensing
distances, auto PNP/NPN, push button/remote teach, and push
button lock options. Although miniature in size the features and
performance on this sensor are reliable and competitive.
The 42KD is available in visible red LED models in polarized
retroreflective and fixed/adjustable background suppression sensing
modes. The teach button simplifies the setup process and even
provides the option to remote teach the sensor. The sensor also has
the option of light operate (L.O.) or dark operate (D.O.). All 42KD
sensors have a unique “auto PNP/NPN” output which reduces stocking
cost and simplifies selection, installation, and maintenance.
The 42KD is an excellent solution to a broad range of applications
including industries such as automotive, packaging, and material
handling. These features make the 42KD sensor easy to apply in
challenging applications, especially where space is a limitation.
Features
• Smallest sensor in the Rockwell Automation portfolio
• Auto NPN/PNP output
• Easy setup of switch points using teach button
• External teach capability
• IP67 enclosure
• Self-contained sensor
• Mounting accessory included with product
Specifications
Certifications CE Marked for all applicable directives
Enclosure Type Rating IP67
Operating Temperature [C(F)] -20…+50° (-4…+122°)
Storage Temperature [C(F)] -20…+80° (-4…+176°)
Vibration 10…55 Hz, 1 mm amplitude, meets or exceeds IEC 60947-5-2
Shock
Optical
Indicator LEDs
Electrical
Operating Voltage 10…30V DC
No Load Supply Current LED models: ≤30 mA
Protection Type Short circuit and reverse polarity
Outputs
Response Time 500 μs
Output Type Auto PNP/NPN
Output Function
Output Current ≤50 mA
Switching Frequency 1000 Hz
Mechanical
Housing Material PUR
Lens M aterial PMM A
30 g with 11 ms pulse duration, meets or exceeds
IEC 60947-5-2
Green: Operating voltage on;
Yellow: Object detected/switching output active
Complimentary light and dark operate via push button and
remote teach fixed background suppression models;
Complimentary light and dark operate via remote teac h
Wiring Diagrams
Input
+V
Load
-V
Brown (1)
White (2)
Black (4)
Blue (3)
PNP Operation NPN Operation
+V
Input
Load
-V
Brown (1)
White (2)
Black (4)
Blue (3)
Pinouts
The quick-disconnect is shown below. The pin numbers correspond to
male connectors on the sensor.
Rockwell Automation 42KD-IN001A-EN-P—Octo ber 2014
2 42KD Miniature Sensor
2 m cable
Teach-in
8 (0.31)
5.5 (0.22)
Emitter
Receiver
LED 2
21.1
(0.83)
3.3
(0.13) dia.
3.3
(0.13)
18.3
(0.72)
LED 1
8 (0.31)
4.6 (0.18)
4.9
(0.19) dia.
2.6
(0.10) dia.
14.6 (0.57)
2.8
(0.11)
M8
M8 with
pico pigtail
Teach-in
LED 2
LED 1
8 (0.31)
21.1
(0.83)
4.6 (0.18)
4.9
(0.19) dia.
2.6
(0.10) dia.
3.3
(0.13) dia.
3.3
(0.13)
18.3
(0.72)
14.6 (0.57)
2.8
(0.11)
8 (0.31)
5.5 (0.22)
Emitter
Receiver
Teach button
LED indicator
LED indicator
Tar get
Dimensions [mm (in.)]
Sensor User Interface
Familiarize yourself with the LED indicators.
Mounting the Sensor
Securely mount the sensor on a firm, stable surface or support. An
application subject to excessive vibration or shifting may cause
intermittent operation. For installation convenience, Rockwell
Automation offers a wide range of mounting brackets (see Accessories
section for more detail).
Note: Due to the detection method, targets travelling horizontally to
the sensor’s optics are detected. Targets travelling vertically
may not be accurately detected. For reliable background
suppression, a minimum separation distance is recommended
between the target and the background.
42KD Miniature Sensor Configuration
Polarized Retroreflective and Adjustable Background
Suppression
The 42KD is configured using the push button or Remote Teach, and
the LED indicators on the sensor. Four features can be configured:
• Standard or precision teach for sensitivity/sensing range
• Light operate (LO) or dark operate (DO) output
• Auto PNP/NPN, dedicated NPN or dedicated PNP
• Push button lock/unlock
The sensor output is disabled during Teach.
Teach Interface
Default Settings:
The factory default settings are as follows:
Sensing Range: Maximum Setting
Output Type: Auto PNP/NPN. In Auto PNP/NPN mode, the sensor
continuously monitors the load connection and automatically
configures the output to PNP or NPN.
Rockwell Automation 42KD-IN001A-EN-P—October 2014
Teach Sensitivity/Sensing Range
The default setting is the maximum sensitivity/range.
Teaching the sensitivity/sensing range is a two-step process: teach the
background (first condition) and teach “target” (second condition).
Switching threshold for output ON vs. OFF is set in between the two
conditions.
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