KEYENCE LR-ZB250AN/P - Manual

1
Self-contained
CMOS Laser Sensor
LR-ZB250AN/ZB250AP
Supplemental Manual
The "I-DATUM (F-2) mode" for the LR-Z Series memorizes the "Light receiving pattern" the
background as a reference surface and detects any changes of the reference surface.
The display value indicates the degree of Consistency of "Light receiving pattern" between
the reference surface and the detected object. After setting the reference surface, the
displayed value is calibrated toi100. When detecting an object, the value decreases as
the degree of Consistency with the reference surface becomes lower. Lower values allow
for more stable detection.
This supplemental manual explains the installation method and calibration necessary to
detect transparent objects using the "I-DATUM (F-2) mode".
1. Reference surface
The following background surfaces are recommended for stable detection.
• Matte finished
• Fixed with less vibration
• Dry with no dirt or dust bulid-up
2. Distance between sensor and reference surface
The recommended distance between sensor and reference surface is 70 to 150 mm.
3. Position of the object to be detected
For stable detection, put the sensor as close as possible to the object to be detected and
also keep it as far away as possible from the reference surface.
4. Beam axis of the sensor
Tilt the beam axis of the sensor as much as possible against the reference surface.
(10° or more)
Example 1)
Example 2)
1. Switch the mode.
Switch the operation mode of LR-Z to "I-DATUM (F-2)".
Set the reference surface next.
Recommended installation
Tilt the beam axis
downward.
70 to 150 mm
Separate as far
apart as possible.
Move as close
as possible.
It can also be tilted to the
right or left.
Reference
surface
10° or more
10° or more
Setting procedure
The object is closer to the sensor.
The object is close to the
reference surface.
Recommended
The sensor is closer
to the object.
The sensor is far
from the object.
Recommended
Press and hold the [DOWN] button for 3 seconds or
more.
Press the [UP] button and [Down] button at the
same time.
Press the [UP] button.
Press the [UP] button to switch the operation mode to “I-DATUM (F-2)
mode”.
Press and hold the [DOWN] button for 3 seconds or
more to complete the setting.
With the “I-DATUM (F-2) mode”, the left end of 7
segment display will always illuminate.
273GB