FT-SNFM2 PANASONIC EW, FT-SNFM2 Datasheet - Page 6

• Manufacturer Part Number: FT-SNFM2
• Description: PHOLOELECTRIC SENSOR
• Manufacturer: PANASONIC EW
• Type: Thrubeamr

Specifications of FT-SNFM2

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5
Superior Performance
Simplified systems using new operating modes
Multi-purpose 2-output
A window comparator mode and differential sensing mode have been added. These modes
make it easy to carry out sensing tasks that previously required multiple sensors or involved
complex threshold settings.
Upper and lower limits for threshold values
can be set so that the incident light intensity
can turn on and off within those ranges.
Single output is used, so that only one
cable is required, and no PLC processing is
required either.
Two independent output channels
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.
● Window comparator mode
<
Tray absent
Sensing ICs in trays
● Comparison with previous models
OFF
[Previous models]
[FX-305]
1 sensor is enough!
2 sensors needed
IC present
ON
Too far right
Too far left
OK
>
Tray present
OFF
OUT 1
OUT 2
are provided,
OFF
OFF
ON
ON
Incident
light
intensity
Example
● Differential sensing mode
<
Sensing meandering of sheets
Sensing of tiny moving objects
Meandered position
Superior Performance
Concept 2
Lower light amounts due to dust
Sensing of only sudden changes in light amounts
Because sensing is not possible at normal
sensitivity settings, sensitivity must be reset.
FX-305
Only the target objects are sensed.
No need to reset the sensitivity.
Actual position
ON
>
0 V
Output 1
Output 2
ON
V
FX-305
Equipped with 5 types timers
The FX-305 includes the same ON-delay /
OFF-delay / ONE-SHOT timer as the
FX-301(-HS), as well as an ON-delay • OFF-
delay timer and an ON-delay • ONE-SHOT
timer. A wide variety of timer control
operations can be carried out by these fiber
sensors alone.
Drops in light amounts due to problems
such as broken fibers or dirty tips are
detected and output. When output 1
threshold value teaching is carried out with
the FX-305, output 2 is set concurrently
with the setting shifted by the amount of
surplus.
Drops in surplus amounts of light intensity
due to dust or other particles can therefore
be detected and output.
Initial setting
threshold value
threshold value
Output 2
Output 1
Timer period: Output 1 0.5 to 9,999 ms (variable)
Sensing
condition
ON-delay
OFF-delay
ONE-SHOT
ON-delay •
OFF-delay
ON-delay •
ONE-SHOT
New
Time chart
Alarm output: Output 2 is set concurrently
In conjunction with teaching amount
15 %
automatically
Output 2 0.5 to 500 ms (variable)
Incident light
intensity
T
1
For L-ON
T
T
T
T
1
1
1
1
with output 1
T
1
T
Light amount drops
and settings are reset
2
T
2
T
15 %
automatically
1
FX-305
FX-305
Beam-
received
Beam-
interrupted
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF