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10 Troubleshooting
100
FX3U-CF-ADP User's Manual
STARTUP AND MAINTENANCE
PRECAUTIONS
• Make sure to connect the battery correctly. Do not charge, disassemble, heat, short-circuit, or expose the battery to fire.
Doing so may rupture or ignite it.
• Do not touch any terminal while the PLC's power is on.
Doing so may cause electric shock or malfunctions.
• Before modifying or disrupting the program in operation or running the PLC, carefully read th rough this manual an d the associated
manuals and ensure the safety of the operation.
An operation error may damage the machinery or cause accidents.
STARTUP AND MAINTENANCE
PRECAUTIONS
• 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 attaching or detaching the following devices.
Failure to do so may cause device failures or malfunctions.
- Peripheral devices, display modules, expansion boards and special adapters
- I/O extension units/blocks, FX Series terminal block and the special function units/blocks
- Battery and memory cassette