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Method
Action
Result
Push
Button
Press and hold TEACH for longer than 2 seconds.
and
flash
alternately
on the display. The DYN and WND
indicators
flash.
Remote Input
No
action
required.
n/a
3. Teach the sensor.
Method
Action
Result
Push
Button
Press TEACH to teach the target.
The sensor is taught the
first
target.
and
flash
alternately
on the display. The DYN and WND
indicators
flash.
Remote Input
Single-pulse the remote input.
T
4. Present the target.
Method
Action
Result
Push
Button
Present the second target. The sensor-to-target distance must be within the
sensor's range.
and
flash
alternately
on the display. The DYN and WND
indicators
flash.
Remote Input
5. Teach the sensor.
Method
Action
Result
Push
Button
Press TEACH to teach the target.
The sensor is taught the second target
and the sensor returns to Run mode.
Remote Input
Single-pulse the remote input.
T
Table 3: Expected TEACH Behavior for Two-Point
Static
TEACH
Condition
TEACH Result
Display
At least one taught
condition
is between
the minimum and maximum signal level
limits.
Sets the threshold between the two taught
conditions.
The current NSS displays.
Both taught
conditions
are darker than the
minimum signal value limit.
Sets the threshold at the minimum level.
Sets the sensor at the maximum
detection
condition.
briefly
displays, and then the current
NSS displays.
Both taught
conditions
are brighter than
the maximum signal value limit.
Sets the threshold at the maximum level.
Sets the sensor at the minimum
detection
condition.
briefly
displays, and then the current
NSS displays.
Both taught
conditions
are at the same
signal level. This is a
Calibration
Set.
Sets the threshold slightly below the two
taught
conditions.
briefly
displays, and then the current
NSS displays.
3.5.3 Dynamic TEACH
Dynamic TEACH sets a single switching threshold during machine run
conditions.
Dynamic TEACH is recommended for
applications
where a machine or process may not be stopped for teaching. During Dynamic TEACH, the sensor takes
multiple
samples of the light
and dark
conditions
and
automatically
sets the switch point at the
optimum
level.
Q3X Laser Contrast Sensor
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