Mitsubishi Electric MELSEC iQ-F Series User Manual page 9

[STARTUP AND MAINTENANCE PRECAUTIONS]
WARNING
● Do not touch any terminal while the programmable controller'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 in the power ON status may cause electric shock.
● Before modifying the program, performing forced output, or running or stopping the programmable
controller while the system is running, read through this manual carefully, and ensure complete safety.
An operation error may damage the machinery or cause accidents.
● Do not change the program in the programmable controller from two or more peripherals at the same
time. (such as from an engineering tool and a GOT) Doing so may cause destruction or malfunction of
the programmable controller program.
● Use the battery for memory backup in conformance to this manual
- Use the battery for the specified purpose only.
- Connect the battery correctly.
- Do not charge, disassemble, heat, put in fire, short-circuit, connect reversely, solder, swallow, or
burn the battery, or apply excessive forces (vibration, impact, drop, etc.) to the battery.
- Do not store or use the battery at high temperatures or expose to direct sunlight.
- Do not expose to water, bring near fire or touch liquid leakage or other contents directly.
- When replacing the battery, make sure to use our specified product (FX3U-32BL).
- When a battery error occurs ("BAT" LED is on in red), follow the description in this manual.
Incorrect handling of the battery may cause heat excessive generation, bursting, ignition, liquid
leakage or deformation, and lead to injury, fire or failures and malfunction of facilities and other
equipment.
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