Rockwell Automation 42JT-D2LAT1_D8LAT1 VisiSight Photoelectric Diffuse Sensors - Manual (Page 3)

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Output Type Selection:
Auto PNP/NPN, Dedicated NPN, Dedicated PNP
The default setting is Auto PNP/NPN. This means the sensor
monitors the load connection and automatically configures for
the proper operation, i.e., PNP or NPN. If no load is connected, the
sensor defaults to PNP.
The following applications are covered with dedicated PNP or
dedicated NPN selection:
a. Parallel wiring of multiple sensor outputs: select dedicated
PNP or dedicated NPN setting, as needed.
b. If the load is connected for NPN configuration but to a
different power supply than the power to the sensor or via a
load enabling contact (e.g., a relay contact in series with the
load): select dedicated NPN.
Selection can be made as follows:
1. To access output type: Press and hold the push button for 12
seconds (until both LEDs start flashing synchronously). At the
release of the button, the current setting of output type is
indicated by the slow flashing of the LED (or LEDs) as follows:
• Auto PNP/NPN: both LEDs flashing
• Dedicated NPN: green LED flashing
• Dedicated PNP: yellow LED flashing
2. To change output type: Press and release the push button
within ten seconds to select desired type. Each press of the
button will cycle to the next output setting. The type selected
is indicated by the LEDs. The sensor retains the setting per the
last button depression and returns to the RUN mode ten
seconds after the last button is pressed.
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 (e.g., connect to the
+V for more than three seconds to teach the “target,” disconnect
from the +V; remove the target and connect to the +V for less
than one second to teach the “no target” condition. All push
button functions can also be carried out via RT.
IO-Link
See instructions for IO-Link on www.ab.com . Remote Teach (pin 2)
is disabled in IO-Link operation. If output is selected as dedicated
NPN, IO-Link communication is unavailable.
Wiring Diagrams
The quick-disconnect connector is shown in the following
diagrams. The pin numbers correspond to male connectors on
the sensor.
Micro (M12) Male QD on Pigtail and
Integral Pico (M8) Male QD
Output Wiring
 Normal operation: No connection. Disabled in IO-Link operation.
Remote Teach: Refer to the Remote Teach section.
Push Button Lock: Connect to -V. See the Push button Lock/Unlock
section.
Approximate Dimensions [mm (in.)]
4
3
1
2
3
2
1
4
M12 Male M8 Male
Brown (1)
White (2)
Black (4)
Blue (3)
+V
Remote Teach/Lock 
Output: Auto PNP/NPN or IO-Link
-V
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)
12
(0.47)
M8 x 1
34
(1.34)
22.9
(0.90)
25.4
(1.0)
2.6
(0.10)
20
(0.79)
Clearance for
M3 or #4-40 screw
(2 places)