Banner SL30 Series Slot Sensors - Manual (Page 5)

SLE30 Expert ™ Series Slot Sensor
5
Banner Engineering Corp. • Minneapolis, U.S.A.
Website: http://www.baneng.com • Tel: 612.544.3164
Dynamic Sampling Rate
When using Dynamic TEACH to sample an application for programming, it is important
to consider the speed of the object being sensed. The sensor’s sampling rate during this
set-up process is much slower than its response time in RUN mode. Once sampling is
complete and the sensor returns to RUN mode, sensor response time returns to its
original value.
Use the following formula to calculate the target object speed for Dynamic TEACH
sampling:
Max. speed of object =
as it passes the sensor
For example, for an object 0.125" wide: Or for an object 2 mm wide:
(0.125" - 0.07") (2 - 1.8 mm)
Max. object speed = = 6.1" /second Max. object speed = = 22.2 mm/second
0.009 seconds 0.009 seconds
* NOTE: The Dynamic Sampling Rate for high-speed models (“Y” model suffix) is
8 milliseconds (0.008 seconds)
† NOTE: The sensor will return to RUN mode if the first TEACH condition is not registered within 90 seconds. Dynamic TEACH mode may be
cancelled by waiting 90 seconds or by cycling sensor power.
Dynamic TEACH Sequence
Push Button Resulting Indicator Status
Initiates Dynamic
TEACH Mode
Press and hold until
the bi-color (green/red)
indicator begins to
flash red, or turns OFF.
Push and Hold
≥ 2 Seconds
Sensing
Condition
Yellow: ON
Red:
Pulses to indicate relative received signal
strength.
Double-Click
Yellow: Pulses at 0.5 Hz.
Red:
ON
Ends TEACH Process
Release
If contrast is acceptable, the sensor returns to RUN
mode. Otherwise, it will return to Static TEACH
mode; double-click to initiate Dynamic TEACH.
Green: ON (or flashes if signal is close to the
switching threshold).
Yellow: ON or OFF, depending on condition
Starts TEACH Process
Present the sensing
condition while holding
the button
Push and Hold Sensing
Condition Yellow: ON Solid
Red:
ON Solid
Width of object (in inches) — effective beam (0.07")
Dynamic Sampling Rate (0.009 seconds)*