Mitsubishi Electric MELSEQ FX3S Series User Manual page 6

5. 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 change the program in the PLC from two or more peripheral equipment devices at the same time. (i.e. from
a programming tool and a GOT)
Doing so may cause destruction or malfunction of the PLC program.
• Turn off the power to the PLC before attaching or detaching the memory cassette. If the memory cassette is
attached or detached while the PLC's power is on, the data in the memory may be destroyed, or the memory
cassette may be damaged.
• 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 connection 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.
- Peripheral devices, display module, expansion boards, special adapters and memory cassette
• Do not use the chemicals for cleaning.
• If there is the possibility of touching the PLC inside a control panel in maintenance, make sure to discharge to avoid
the influence of static electricity.
6. DISPOSAL PRECAUTIONS
• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of
your device.
7. TRANSPORTATION AND STORAGE PRECAUTIONS
• The PLC is a precision instrument. During transportation, avoid impacts larger than those specified in the general
specifications (Section 4.1) using dedicated packaging boxes and shock-absorbing palettes. Failure to do so may
cause failures in the PLC.
After transportation, verify operation of the product and check for damage of the mounting part, etc.
Safety Precautions
(Read these precautions before use.)
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