8
Intro
duc
tion
E3NW-CRT
User’s Manual
Introduction
Precautions for Safe Use
• Do not forcibly bend or pull the cables.
• Check the user program for proper execution before actually running it on the Unit.
• Confirm that no adverse effect will occur in the system before attempting any of the
following.
• Changing the operating mode of the PLC
• Force-setting/force-resetting bits in memory
• Changing the present value or any set value of any word from the user program
• Do not use thinner or similar solvent for cleaning. Use commercial alcohol.
• Use a dedicated packing box to transport the Unit. Avoid excessive shock or vibration
during transportation.
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External Circuits
• Install external breakers and take other safety measures against short-circuiting in
external wiring.