Mitsubishi FX3U-20SSC-H User Manual page 5

• Do not force the SSCNET III cable into a bend radius smaller than the minimum allowable bend radius. (Refer to
subsection 5.4.1 Precautions for the SSCNET III cable wiring.)
• When connecting the SSCNET III cable to the cable port, place the cabling inside a cable duct or bundle it as close
to the 20SSC-H as possible to avoid the cable from applying its own weight on the SSCNET III connector.
• Do not bundle or bring the SSCNET III cable in contact with other cables or with vinyl tape that contains plasticizing
agents (i.e. Soft Polyvinyl Chloride [PVC]/Polyethylene resin [PE]/Teflon [Fluoro resin]/Nylon). Plasticizing agents
may infiltrate the SSCNET III cable and deteriorate the optical fiber; thereby causing the wire to break and become
damaged. Use flame-resistant acetate cloth adhesive tape (e.g. 570F by Teraoka Seisakusho Co., Ltd.).
• Exposing the SSCNET III cable to solvent/oil may deteriorate the optical fiber and alter its mechanical
characteristics. When using the SSCNET III cable near solvent/oil, take protective measures to shield the SSCNET
III cable.
• When storing the SSCNET III cable, attach the protective cap to the 20SSC-H connector port for dust protection
• Do not remove the protective cap from the 20SSC-H connector port until just before connecting the SSCNET III
cable. Attach the protective cap to the 20SSC-H connector port after removing the SSCNET III cable to protect the
internal optical device from exposure to dust.
• Keep the protective cap and protective tubing clean, and always store them in the provided plastic bag when
removing them from the hardware devices.
• When replacing the 20SSC-H, or when sending the product to a local distributor for repair, make sure to attach the
protective cap to the 20SSC-H connector port. Failure to do so may damage the internal optical device and require
optical device replacement.
4. STARTUP AND MAINTENANCE PRECAUTIONS
• Do not touch any terminal while the PLC's power is on. Doing so may cause electric shock or malfunctions.
• Before cleaning or retightening terminals, externally cut off all phases of the power supply. Failure to do so may
cause electric shock.
• Before modifying or disrupting the program in operation or running the PLC, carefully read through this manual and
the associated manuals and ensure the safety of the operation. An operation error may damage the machinery or
cause accidents.
• When verifying the Zero-return/JOG operation and positioning data, thoroughly read this manual to ensure safe
system operation. Failure to do so may cause an operation failure that leads to a serious accident or that causes
damage to the machinery.
• Do not disassemble or modify the PLC. Doing so may cause fire, equipment failures, or malfunctions. For repair,
contact your local Mitsubishi Electric distributor.
• Turn off the power to the PLC before connecting or disconnecting any extension cable. Failure to do so may cause
equipment failures or malfunctions.
• Turn off the power to the PLC before attaching or detaching the following devices. Failure to do so may cause
equipment failures or malfunctions.
- Display module, peripheral devices, expansion boards, and special adapters
- Terminal blocks and I/O extension units/blocks
5. DISPOSAL PRECAUTIONS
• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of
your device.
6. TRANSPORTATION PRECAUTIONS
• The PLC is a precision instrument. During transportation, avoid impacts larger than those specified in the manual of
the PLC main unit. Failure to do so may cause failures in the PLC. After transportation, verify the operations of the
PLC.
Safety Precautions
(Read these precautions before using.)
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