Cut Sheet

Wiring Diagrams
Cabled Models QD Models
+
–
brown
blue
white
black
gray
Remote TEACH
10-30 V dc
150 mA maximum
load
Load
Load
+
–
brown
blue
white
black
gray
Load
Load
Remote TEACH
10-30 V dc
150 mA maximum
load
Note: The pink wire is not used.
Sensor Configuration
Configure the sensor using the SET and SETUP modes. After SET mode has defined the sensing parameters, use SETUP
mode to add an OFF-delay or change the light/dark operate status. Use Manual Adjust to fine-tune the thresholds. Use the
two push buttons, “+” and “-”, to access and set sensing parameters. The remote wire also may be used for some
procedures.
Remote Configuration
Use the Remote Configuration function to set the sensor threshold remotely or to disable the push buttons for security.
Connect the gray wire of the sensor to ground (0 V dc), with a remote programming switch connected between them.
Pulse the remote line according to the diagrams in the programming procedures. The length of the individual programming
pulses is equal to the value T: 0.04 seconds ≤ T ≤ 0.8 seconds.
Push Button Disable
In addition to its programming function, Remote Programming may be used to disable the
push buttons for security. Disabling the push buttons prevents undesired tampering with the
programming settings. Connect the gray wire of the sensor as described and four-pulse to
enable or disable the push buttons.
T T
T T T
T T
Maximum Excess Gain SET - Model QS30LLP
• Sets the sensor for maximum excess gain without allowing
false proxing. Provides maximum contrast between any
reflector and a blocked condition and is stable even in dirty
environments.
• Useful for long-range applications and high variations in
contrast, such as beam-break applications where the target
objects are larger than the beam.
Sensor can be aimed at an object or the reflector during SET process
to obtain the same result. All conditions darker than the switchpoint
condition result in ON output (Dark Operate). Output ON and OFF
conditions can be reversed by changing Light/Dark Operate in SETUP
mode (factory setting: Dark Operate).
Darkest
(no signal)
Most Light
(saturated
signal)
Output OFFOutput ON
Location of switchpoint
adjusted via Manual Adjust
Factory-set
Threshold
Figure 5. Maximum Excess Gain SET (Dark Operate
shown)
Manual Adjust – Maximum Excess Gain SET
During RUN mode, adjusts switchpoint up or down via “+” or “–” push buttons.
• Each push button “click” adjusts the switchpoint up by approximately 0.5X excess gain or down by the same
increments.
• The lighted bar graph LEDs move to reflect the increase or decrease of excess gain relative to the switchpoint.
• LEDs #7 and 8 flash when maximum gain is achieved; LEDs #1 and 2 flash when minimum gain is achieved.
When the received signal is at any level greater than 6X excess gain, the first “–” (minus) click to reduce excess gain
reduces it to the 6X level. Subsequent “–” clicks result in decreased values as shown in Specifications on page 8
(approximately 2 clicks per LED change). To return to maximum excess gain, either press “+” repeatedly until LEDs #7
and 8 flash, or hold the “+” button for longer than 2 seconds. For example, in an application that results in 20X excess
WORLD-BEAM QS30 LLP and LLPC
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