Banner WORLD-BEAM QS30 Series - Manual (Page 5)

P/N 111384 rev. D
5
WORLD-BEAM ® QS30AF Adjustable-Field Sensor
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Push Button
Remote
0.04 seconds ≤ T ≤ 0.8 seconds Result
Sample
Target
Present
and
Absent
Conditions
Not available via push button
• Hold remote line low > 2 seconds
(until indicators flash); continue to
hold low while presenting at least 1
full application cycle
• Indicator segments
1 and 8 alternately
flash.
Return
to
RUN
Mode
• Sampling continues until the remote
line is released; then sensor returns
automatically to RUN mode.
• Cutoff accepted: Sensor returns directly
to RUN mode.
• Cutoff beyond sensor range: Feedback
is displayed for 2 seconds
(see page 6).*
Dynamic SET
The sensor samples the distances to both the target objects and the background
surface; the sensor places the cutoff point midway between the object and the
background. In RUN mode, objects located between the minimum range and the cutoff
are sensed; anything beyond the cutoff (e.g., other objects or background surfaces) is
ignored.
Minimum range varies, depending on the cutoff distance and reflectivity
(see Figure 11).
Sensing Distance (D)
Sensor places cutoff
switchpoint midway
Cutoff
Objects in this area are sensed
Minimum
Range
Background
Target Object
Figure 5. Dynamic SET
* Segments 7 and 8 simultaneously flashing: Indiscernible target; sensor defaults to maximum cutoff.
Segments 1 and 2 simultaneously flashing: Cutoff set is nearer than minimum cutoff; sensor defaults to minimum cutoff.
T T T T
T
T T
T T T
T T
T T
T
> 2 seconds
NC NO