FAQ No. FAQ02330
Question
What is the difference between
F3SN /
F3SH Safety Light Curtains and
F3W Area Sensors?
Answer
F3SN / F3SH series Safety Light Curtainsconform to safety system
construction for any category but other Line Sensors
F3W-series, F3WN-series, and
F3ZN-series for workpiece detection cannot be
used in constructing safety systems.
In practical terms, the safety of systems is ensured with F3SN/F3SH series
mainly because these products have the following four functions.
F3W-series and F3WN-series, on the other hand, do not have the design
features listed under 1 to 4 below, so they cannot be used in safety
applications.
Main Functions of F3SN/F3SH Series
1. The Sensor itself regularly performs
diagnostic checks.
Self tests for F3SN/F3SH Series
Self diagnosis functions for
F3SS-AT60P
2. The Sensor itself detects external malfunction
factors (e.g., noise and external light interference) in addition to
malfunctions.
3. The Sensor has a failsafe design to always ensure a safe status
(control outputs OFF) even if the Sensor is malfunctioning.
4. The control outputs always use light-ON operation.
(Note: On the other hand, the
potentially dangerous option of dark-ON can be selected for F3W-series,
F3WN-series, and F3ZN-series.)
Other Safety Sensor
FAQs
 What is the self-diagnostic function?
What is the protective height?
What is the smallest detectable object for the F3SN?
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