P/N 64154 rev. F 5
D10 Expert
™
Dual Discrete Outputs
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Dynamic TEACH and Adaptive Thresholds
•TEACHon-the-y.
•Setsasinglethreshold.
•Thresholdpositionisadjustableusingthe“+”and“-”buttons(seeManualAdjust,page9).
Dynamic TEACH is used to program sensitivity during actual machine run conditions.
During Dynamic TEACH, the sensor takes multiple samples of the light and dark conditions
and automatically sets the sensitivity at the optimum level. Dynamic TEACH activates the
sensor’s adaptive threshold system, which continuously tracks minimum and maximum signal
levels, and automatically maintains centering of the switch point between the light and dark
conditions. The adaptive threshold system remains in effect during RUN mode to automatically
adjust for changes in the light or the dark conditions.
When Dynamic TEACH mode is used to program sensitivity, the output ON state (light or dark
operate) will remain as it was last programmed. To change to either light or dark operate, use
the SETUP mode (see page 10).
Dynamic TEACH and Manual Adjust
SensitivitymaybeadjustedatanytimewhenthesensorisinRUNmodebyclickingthe“+”
and“-”buttons.However,whenamanualadjustmentismade,theadaptivethresholdsystem
is disabled (cancelled).
Push Button
Remote
0.04 sec. ≤ T ≤ 0.8 sec.
Result
Access
Dynamic
TEACH Mode
•Pressandhold
Dynamic (+)
button.
•Holdremoteline
low (to ground).
•Displayflashes“dyn”
•Arrowiconturnsred
TEACH
Sensing
Conditions
•PresentOutput
ON/OFF conditions
while continuing to
hold Dynamic button.
•PresentOutput
ON/OFF conditions
while continuing
to hold remote
line low (to ground)
Return to
RUN Mode
•ReleaseDynamic
button.
•Releaseremote
line/switch.
TEACH conditions acceptable:
•Displayflashes“pass,” followed
by a number (denoting contrast);
see Figure 5.
•SensorreturnstoRUNmodewith
new settings.
•Arrowiconturnsgreen
TEACH conditions unacceptable:
•Displayflashes“fail”
•Arrowiconremainsred
•SensorreturnstoRUNmode
(Arrow icon turns green) without
changing settings.
Sensor positions
threshold midway
between taught conditions
Sensor positions
threshold midway
between taught conditions
Darkest
(no signal)
Darkest
(no signal)
Most Light
(saturated
signal)
Most Light
(saturated
signal)
Single
sensing
condition
Sensing window size
adjusted by
Manual Adjust
Output OFF Output OFF
Output OFF
Output ON
Output ON
Darkest Taught
Condition
Lightest Taught
Condition
Position
adjusted by
Manual Adjust
Darkest
(no signal)
Most Light
(saturated
signal)
Output OFF Output ON
2nd Taught
Condition
1st Taught
Condition
Position
adjusted by
Manual Adjust
Figure 4. Dynamic TEACH (Light Operate
shown)
Contrast Values
500+ Excellent: Very stable operation.
100-500
Good: Minor sensing variables will
not affect sensing reliability.
32-99
Low: Minor sensing variables may
affect sensing reliability.
0-31
Marginal: Consider an alternate
sensing scheme.
Figure 5. Contrast Values
(4 paginas)
(12 paginas)
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