Rockwell Automation 42JT VisiSight Photoelectric Clear Object Sensors - Manual (Page 3)

3
• 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 pushbutton
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.
Pushbutton Lock/Unlock
The pushbutton or remote teach (RT) can be used to prevent
unauthorized users from changing teach settings.
To lock the pushbutton: press and release the button three
times within three seconds. Both LEDs flash synchronously for
three seconds indicating that the pushbutton is now locked.
To unlock the pushbutton: press and release the button three
times within three seconds. Both LEDs flash asynchronously for
three seconds indicating that the pushbutton is now unlocked.
Permanent Lock: The pushbutton 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 pushbutton 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
pushbutton functions can also be carried out via RT.
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.
Remote Teach: connect to +V. Refer to the Remote Teach section.
Pushbutton lock: connect to -V. Refer to the Pushbutton 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 NPN or PNP)
-V
LO
DO
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)