WORLD-BEAM QS18U Ultrasonic Sensors
Minimum
Operating
Range
Maximum
Operating
Range
Near
Setpoint
Far
Setpoint
Power Output
Power Output
Power Output
Power Output
ON:
Green
ON:
ON:
ON:
Red
OFF
OFF
ON:
Green
OFF
Green Yellow
Figure 2. TEACH Interface
Status Indicators
Power ON/OFF Indicates
LED
Output/Teach
LED
Indicates
OFF
Power is OFF
OFF
Target is outside window limits (normally open
operation).
ON Red
ON Green
Target is weak or outside sensing
range.
Yellow
Target is within window limits (normally open
operaton).
Sensor is operating normally, good
target.
ON Red (solid)
In Teach Mode, waiting for first limit.
In Teach Mode, waiting for second limit.
ON Red (flashing)
Teaching Minimum and Maximum Limits
General Notes on Programming
Normally Open Operation
•
•
•
The sensor returns to Run mode if the first TEACH
condition is not registered within 120 seconds.
After the first limit is taught, the sensor remains in
Program mode until the TEACH sequence is finished.
To exit Program mode without saving any changes,
press and hold the programming push button for more
than 2 seconds (before teaching the second limit). The
sensor reverts to the last saved limits.
Minimum
Limit
Maximum
Limit
Output OFF
Output ON
Output OFF
Normally Closed Operation
Minimum
Limit
Maximum
Limit
Output ON
Output OFF
Output ON
Figure 3. Teaching independent minimum and maximum limits
Procedure
Result
Push Button (0.04 sec ≤ Click ≤
Remote Line (0.04 sec < T < 0.8
sec)
0.8 sec)
Programming Press and hold push button
Mode
No action required; sensor is ready for Output LED: ON Red
1st limit teach
Power LED: ON Green (good signal) or
ON Red (no signal)
Teach First
Limit
Position the target for the first limit
Position the target for the first limit
Power LED: Must be ON Green
P/N 119287 Rev. J
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