Mitsubishi Electric MELSEC-F FX3U-CAN User Manual page 5

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, cut off all phases of the power supply externally.
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.
• Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric representative.
• Turn off the power to the PLC before connecting or disconnecting any extension cable.
Failure to do so may cause equipment failures or malfunctions.
• Do not drop the product or exert strong impact to it.
Doing so may cause damage.
• Turn off the power to the PLC before attaching or detaching the following devices.
Failure to do so may cause equipment failures or malfunctions.
- Peripheral devices, display module, expansion boards, and special adapters
- Input/output extension units/blocks, FX Series terminal blocks and special function units/blocks
- Battery and memory cassette
5. DISPOSAL PRECAUTIONS
• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of
your device.
6. TRANSPORTATION AND STORAGE PRECAUTIONS
• The PLC is a precision instrument. During transportation, avoid impacts larger than those specified in the general
specifications of the PLC main unit manual by using dedicated packaging boxes and shock-absorbing palettes.
Failure to do so may cause failures in the PLC. After transportation, verify operation of the PLC and check for
damage of the mounting part, etc.
Safety Precautions
(Read these precautions before use.)
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