SMB55RA BANNER ENGINEERING, SMB55RA Datasheet - Page 5

• Manufacturer Part Number: SMB55RA
• Description: Sensor Mounting Bracket
• Manufacturer: BANNER ENGINEERING

Specifications of SMB55RA

• For Use With: R58E Series Expert Register Mark Sensors
• Lead Free Status / Rohs Status: RoHS Compliant part

Figure 3. Dynamic TEACH (Light or Dark
*Following TEACH
NOTE: High contrast relates directly to sensing
reliability; high-contrast sensing applications are
most tolerant of sensing variables (e.g., web flutter or
variations in registration mark color and print density).
Segment*
Bargraph
Display
6 to 8
4 to 5
2 to 3
Longer Duration
Condition of
1
Banner Engineering Corp. • Minneapolis, MN U.S.A
Output OFF
Output OFF
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Operate, depending on the sensing
condition shown)
• P ress and hold the
• C ontinue to hold Dynamic
• P resent sensing conditions
• R elease the Dynamic
Dynamic push button
for > 2 seconds.
push button.
(present registration mark
at least twice).
push button.
between taught conditions
Excellent: Very stable operation.
Good: Minor sensing variables
will not affect sensing reliability.
Low: Minor sensing variables
may affect sensing reliability.
Poor: Consider an alternate
sensing scheme.
threshold midway
Sensor positions
Manual Adjust
Manual Adjust
Push Button
adjusted by
adjusted by
Position
Position
Relative Contrast /
Recommendation
Output ON
Output ON
Shorter Duration
Condition of
Procedure
• H old the remote line low
• C ontinue to hold the remote
• P resent sensing conditions
• R elease remote line/switch.
for > 2 seconds.
line low.
(present registration mark
at least twice).
T
T
T
Remote Line
Dynamic TEACH is used to configure sensitivity during actual sensing conditions, when
looking for a mark against its background condition. The R58E takes multiple samples of the
registration mark against its background material and automatically positions the threshold at the
optimum level. See Figure 2. The registration mark must be presented at least two times during
Dynamic TEACH.
When Dynamic TEACH is used, the Output ON state will be the shorter duration (smaller)
event sensed, and LO/DO will be set accordingly. To change the output state, change to either
LO or DO in SETUP mode, or pulse the remote line three times (see page 8).
Maximum Feed Rate
In order to optimize performance and ensure that all LED color and gain combinations
are evaluated during Dynamic TEACH, the registration mark must encompass the 1.2 mm
dimension of the 1.2 mm x 3.8 mm sensing image for at least 0.002 seconds. Therefore, the
maximum feed rate can be determined with the following formula:
NOTE: R egistration marks narrower than the 1.2 mm sensing image width can be detected at
Dynamic TEACH and Manual Adjust
Sensitivity may be adjusted at any time when the sensor is in RUN mode by clicking the “+”
and “-” buttons. Each click translates to 1/2 segment on the bargraph display. For best sensing
reliability, the light and dark conditions should register equally distant from the switchpoint on
the bargraph display.
T
T
T
T
> 2 seconds
T
T
> 2 seconds
> 2 seconds
Maximum Feed Rate in mm/sec. = (registration mark width in mm – 1.2) / 0.002
R58 Expert
feed rates less than 600 mm/sec, but the contrast will be reduced, due to averaging of
the background and the registration mark.
Example with a 5 mm registration mark:
Maximum Feed Rate = (5 mm – 1.2) / 0.002 = 1900 mm/sec.
T
T
T
T T T
T
T
T
T T T
T
T
T
T T T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
(no signal)
Darkest
LO and DO: Alternately flash Green
T
Output: OFF
Bargraph display: Goes OFF
LO and DO: Alternately flash Green
T
Output: OFF
Bargraph display: Remains OFF
T
• B argraph display flashes one segment for three seconds to indicate
• S ensor enters RUN mode.
• P airs of bargraph display segments flash in unison for three seconds to
• S ensor returns to RUN mode without changing settings.
T
T
T
T
T
T
relative contrast (see contrast table above).
warn of unacceptably low contrast.
T
T
T
T
T
Output OFF
T
T
T
T
T
T
T
T
T
T
T
T
T
™
T
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T
T
T
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T
Dynamic TEACH
T
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T
T
T
Registration Mark Sensors
Sensing window size
T
T
T
T
T
T
T
T
T
T
Manual Adjust
adjusted by
T
Output ON
T
T
T
T
T
T
T
T
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T
T
taught
Single
point
T
T
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T
0.8 seconds
T
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T
0.8 seconds
0.8 seconds
T
T
T
Teach Unacceptable
T
T
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T
Teach Accepted
T
T
T
T
T
T
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T
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T
Output OFF
T
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T
Result
T
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T
Most Light
(saturated
signal)
P/N 122928 rev. C
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