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Mounting the Sensor
Securely mount the sensor on a firm, stable surface, or support. An
application subject to excessive vibration or shift can cause intermittent
operation.
Target
IMPORTANT
Due to the detection method, targets traveling horizontally to
the sensor optics are detected. Targets that travel vertically
cannot be accurately detected. For more dependable
background suppression, a minimum separation distance is
recommended between the target and the background.
Sensor Configuration
Polarized Retroreflective and Adjustable Background
Suppression
The Miniature Sensor is configured using the push button or Remote
Teach, and the status 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 Sensitivity/Sensing Range
The default setting is the maximum sensitivity/range.
When you teach the sensitivity/sensing range, it 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.
Standard Teach
To Teach the Background (First Condition)
t > 3 s
Align the sensor to the background. Press and hold button for
three seconds until yellow status indicator starts flashing.
Release the button. The first condition has now been taught.
Background
2. Teach "Target" (Second Condition)
t < 0.5 s
If there's no background surface in the field of view in Step 1, the
switching threshold is set between the distance to the target and the
maximum sensing range. The sensor can also be taught by teaching the
target as the first condition and background as the second condition.
Precision Teach: For a more precise setting with a smaller hysteresis,
teach the sensor to the target in step 1 and keep the target present in step
2).
Restore the maximum range to the factory default: Perform steps 1 and
2 with "no target" in the sensor field of view and nothing in the
background.
Teach Light Operate (L.O.) or Dark Operate (D.O.)
The default setting of the output is dark operate (D.O.)
L.O. setting means that output turns ON when the target is detected. If
the application requires the output to turn OFF when the target is
detected, the setting can be changed to dark operate (D.O.).
1. To Access the Teach Output Mode Setting
2. To Change the Sensor Output Mode Setting
t < 0.5 s
Rockwell Automation Publication 42KD-IN001B-EN-P - June 2017
IMPORTANT
If there are multiple reflectivity targets, choose the darkest/
least reflective target that is placed in its farthest position for
install.
Insert the target between the sensor and the background.
Press and release the button. The teach process is complete.
Target
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.
Background
t > 6 s
Press and hold button for six seconds until the green status
indicator flashes. Release the button. The yellow light
indicates the current setting:
L.O.: Yellow indicator ON
D.O.: Yellow indicator OFF
Press and release the button within ten seconds to toggle
from L.O. to D.O., the selection indicated by the yellow
indicator.
The sensor retains the setting per the last button depression
and returns to the RUN mode ten seconds after the last
button is depressed.
Miniature Sensor
3
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