Action
Result
Single-pulse the remote input to unlock the sensor.
T
displays and the sensor returns to Run
mode.
Double-pulse the remote input to lock the sensor.
T
T
T
displays and the sensor returns to Run
mode.
Triple-pulse the remote input to apply the operator lock to
the sensor.
T
T
T
T
T
displays and the sensor returns to Run
mode.
3.5 TEACH Procedures
3.5.1
Detection
Reliability
After
completing
a TEACH, the
detection
reliability of the
application
can be assessed by comparing the displayed NSS value of the light
and dark target
conditions.
The
difference
between the two displayed values is an
indication
of the contrast of the
application.
Difference
between Light and Dark target NSS values
Application
reliability
> 10
Marginal
10 to 20
Low
20 to 40
Good
40 to 60
Robust
> 60
Excellent
3.5.2 Two-Point
Static
TEACH
Two-point TEACH sets a single switching threshold. The sensor centers the switch point between two taught
conditions
with the Output
ON
condition
on one side and the Output OFF
condition
on the other.
Sensor positions
threshold midway
between taught conditions
Darkest
(no signal)
Most Light
(saturated
signal)
Output OFF
Output ON
2nd Taught
Condition
1st Taught
Condition
Position
adjusted by
Manual Adjust
Figure 8. Two-Point TEACH (Light Operate shown)
Note: The sensor must be set to
=
to use the following
instructions.
Note: To program the sensor using remote input, remote input must be enabled (
=
)
1. Present the target.
Method
Action
Result
Push
Button
Present the
first
target. The sensor-to-target distance must be within the
sensor's range.
The target's value displays.
Remote Input
2. Start the TEACH mode.
Q3X Laser Contrast Sensor
14
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