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Precautions for Safe Use
Make sure to observe the following precautions that are necessary for ensuring safe use of the product.
• Thoroughly read this manual and understand the installation procedures, operation check procedures, and
maintenance procedures before using the product.
• Loads must satisfy both of the following conditions:
-Not short-circuited
-Not used with a current that is higher than the rating
• Do not drop the product.
• Dispose of the product in accordance with the relevant rules and regulations of the country or area where the
product is used.
Precautions for Correct Use
Observe the precautions described below to prevent operation failure, malfunctions, or undesirable effects on
product performance.
Installation environment
•Do not install the F3SJ in the following types of environments:
- Areas exposed to intense interference light, such as direct sunlight
- Areas with high humidity where condensation is likely to occur
- Areas where corrosive gases are present
- Areas exposed to vibration or shock levels higher than in the specification provisions
- Areas where the product may come into contact with water
- Areas where the product may get wet with oil that can solve adhesive
•This is a class A product. In residential areas it may cause radio interference, in which case the
Responsible Person may be required to take adequate measures to reduce interference.
•Do not use radio equipment such as cellular phones, walkie-talkies, or transceivers near the F3SJ.
Wiring and installation
•Make sure to perform wiring while the power supply is OFF. Otherwise, the F3SJ may fail to operate
due to the diagnosis function.
•Do not short-circuit output lines to +24V line. Otherwise a fault of F3SJ may occur.
•When extending the communication line with a cable (twisted-pair wire) other than the dedicated
cable (F39-JC
line.
Cable specification (extension cable)
•When replacing the cable connectors with other types of connectors, use connectors that provide a
protection grade of IP54 or higher.
•Properly perform the wiring after confirming the signal names of all the terminals.
•Do not operate the control system until 2 seconds or more (2.2 seconds or more in case of series
connection) after turning ON the power of the F3SJ.
•Be sure to route the F3SJ cable separate from high-potential power lines or through an exclusive
conduit.
•When using a commercially available switching regulator power supply, make sure to ground the FG
terminal (frame ground terminal).
•Install the emitter and receiver so that their vertical direction should match.
F3SJ-A
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User's Manual
Precautions for Safe Use
Precautions for Correct Use
), use a cable with the same or superior specifications.Connect the shield to the 0V
p.15
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