WORLD-BEAM
®
QS30 Series –
Polarized Retroreflective Laser Sensors
4
P/N 112355 rev. A
Banner Engineering Corp.
•
Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Darkest
(no signal)
Most Light
(saturated
signal)
Output OFF
Output ON
Location of switchpoint
adjusted via Manual Adjust
Factory-set
Threshold
Figure 3. Maximum Excess Gain SET (Dark
Operate shown)
Push Button
Remote
0.04 seconds
≤
T
≤
0.8 seconds
Indicators
Set
Switchpoint
• Press and hold “+”
> 2 seconds
• Single-pulse remote line.
Green Power LED
: OFF
Yellow Output LED:
ON
Bargraph:
#7 & 8 flashing
• Sensor returns to RUN mode
with new settings
• Use Manual Adjust to increase or
decrease sensor excess gain
or
T
T T T
T
T
T
T
T
T
T
T
T
T
T
> 2 seconds
1
1
3
3
4
4
5
5
6
6
7
7
8
8
2
2
LO
DO
+
GAIN
—
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).
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 bargraph 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 the Specifications table 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 gain, pressing “–”
once lowers the gain to 6X, exhibited by LED #8 ON. Pressing it twice more results
in approximately 5X excess gain, exhibited by LED #7 ON. Holding the “+” button for
2 seconds results in a return to maximum gain (20X), exhibited by LEDs #7 and 8
flashing.
