User`s manual

A-2
[DESIGN PRECAUTIONS]
CAUTION
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Do not bundle the control lines or communication cables with the main
circuit or power lines, or bring them close to each other.
The distance of 100mm(3.9inch) or more should be ensured.
Failure to do so cause malfunctions due to noise.
[INSTALLATION PRECAUTIONS]
CAUTION
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Use the PLC in the environment specified in the user's manual of the CPU
module.
Failure to do so may cause electric shock, fires, malfunctions, product
deterioration or damage.
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When mounting the module, fully insert the module fixing projection into the
corresponding fixing hole on the base unit while pressing the module fixing
lever at the bottom of the module.
Incorrect mounting may cause malfunctions, failures or a fall of the module.
The module should be secured with screws in an environment of frequent
vibration.
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Tighten the screws within the specified torque range.
Loose tightening may cause a fall, short circuits, or malfunctions.
Overtightening may damage the screws and/or the module, resulting in a
fall of the module, short circuits or malfunctions.
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Be sure to shut off all phases of the external power supply before mounting
or removing the module.
Failure to do so may damage the module.
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Do not directly touch the conductive part or electronic components of the
module.
This may cause malfunctions or a failure of the module.