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MELSEC-F
SETTINGS AND PROCEDURES PRIOR TO OPERATION4
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4.8 Maintenance and Inspection
This section explains the maintenance and inspection as well as the installing and
uninstalling of the Ethernet module.
4.8.1 Maintenance and inspection
The Ethernet module does not need to be inspected for anything particular other than
checking whether or not the connections of cables and the terminal screws are loose.
Maintain and inspect the system according to the same inspection items as described
in the user's manual for the PLC in order to use it in optimal operating conditions.
DANGER
Do not touch the terminals and connectors while the power is on.
Doing so may cause in electric shocks and malfunctions.
Make sure to turn off all phases of the external power supply before cleaning
or re-tightening the screws. Failure to do so may cause damages or
malfunctions of the module.
If the screws are loose, it may cause the module to short-circuit, malfunction
or fall off.
Tightening the screws excessively may damage the screws and/or the
module and cause the module to short circuit, malfunction or fall off.
CAUTION
Be careful not to let any foreign matter such as wire chips get inside the module.
They may cause fire, as well as breakdowns and malfunctions of the module.
Never disassemble or modify the module.
This may cause breakdowns, malfunctions, injuries or fire.