Mitsubishi MELSEC-A A1SCPUC24-R2, User Manual

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A-5
[INSTALLATION PRECAUTIONS]
CAUTION
Use the programmable controller under the environment specified in the
user’s manual.
Otherwise, it may cause electric shocks, fires, malfunctions, product
deterioration or damage.
Insert the module fixing projection into the fixing hole in the base unit and
then tighten the module mounting screw within the specified torque.
When no screw is tightened, even if the module is installed correctly, it may
cause malfunctions, a failure or a drop of the module.
Tightening the screw excessively may damage the screw and/or the module,
resulting in a drop of the module, a short circuit or malfunctions.
Connect the extension cable to the connector of the base unit or module.
Check the cable for incomplete connection after connecting it.
Poor electrical contact may cause incorrect inputs and/or outputs.
Correctly connect the memory cassette installation connector to the memory
cassette. After installation, be sure that the connection is not loose.
A poor connection could cause an operation failure.
Be sure to shut off all phases of the external power supply used by the
system before mounting or removing the module. Failure to do so may
damage the module.
Do not directly touch the conductive part or electronic components of the
module.
Doing so may cause malfunctions or a failure of the module.