Panasonic Digital Fiber Sensor FX-301 Specification Sheet page 65

Panasonic digital fiber sensor specification sheet
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FX-305
Digital Fiber Sensor
APC circuit
Industry first! Light-emitting amount selection function
If the light-receiving level becomes saturated during close-range sensing or when
sensing transparent or ultra-small objects, you can adjust the light-emitting amount
of the sensor to stabilize sensing without needing to change the response time.
Sensing that previously required the response time or fibers to be changed can now
be set much more easily using this function.
[Light-receiving level saturated]
Actual digit difference: 3000
(12000)
Upper display limit
9999
9000
Saturated digit
difference: 999
Comparison of saturation remedies
[Conventional models]
Response time: Mode selection
Affects positioning precision
Changing fiber: Change to thinner fiber to reduce light amount
Man-hour and cost inefficiencies
Changing setting position: Increase sensing range
Space and man-hour inefficiencies
High-speed response 65µs
High-speed response that is about twice as fast as before has been achieved. Even
small objects moving at high speeds can be sensed. In addition, interference
between two units is prevented in high-speed mode (H-SP).
Stable sensing over long and short periods
In addition to a 'four-chemical emitting element'
which suppresses changes in the light-emitting
element over time so that a stable level of light
emission can be maintained over long periods, a
new 'Auto Power Control (APC) circuit' has also
been adopted. Because fluctuations over short
periods of time have also been suppressed,
stable sensing is possible very quickly once the
power is turned back on after setup changes.
122
Four-chemical
emitting element
Double coupling lens
New Advanced sensor with Visible Indicator
[Stable sensing]
Actual digit difference: 3000
6000
Light-emitting
amount
changed
3000
[FX-305]
Variable light
amount function
Makes steps such
as those at left
unnecessary.
Twice
as fast as
before
Stable sensing comparison
FX-305
Short-term stability
Three-chemical
emitting
Deviation
element,
No APC
Long-term stability
Time
SERIES
Digital Fiber Sensor
with 2 independent
outputs
Industry's largest display 9999
Industry's largest display with 4 digits (9999). With a greater difference in digit value
than previous models, threshold values can be set in units of 1 digit up to maximum
9999. Threshold setting can now be done more easily and accurately.
(During STDF, LONG
and U-LG modes)
Independent dual outputs
Two independent output channels are provided, so that one sensor can be used for
control tasks that previously required two sensors. In addition, the second output
channel can be used for simple self-diagnosis and alarm output, so that ease of
maintenance is improved.
Example
Sensing meandering of sheets
Actual position
Meandered position
Largest number in the industry! Automatic interference
prevention of up to 16 units
Can be used even in places where fibers need to be installed close together.
08/2005
Digit difference comparison
Example
object A
and
object B
Digit difference between
Previous models
4000
Digit difference: Small Digit difference: Large
ON
Too far left
OUT1
OFF
OK
ON
OUT2
Too far right
OFF
[
Conventional
]
2 sensors needed
models
1 sensor is enough!
[FX-305]
FX-305
9999

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