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[Design Precautions]
WARNING
Configure safety circuits external to the programmable controller to ensure that the entire system
operates safely even when a fault occurs in the external power supply or the programmable controller,
this product. Failure to do so may result in an accident due to an incorrect output or malfunction.
(1) Configure external safety circuits, such as an emergency stop circuit, protection circuit, and
protective interlock circuit for forward/reverse operation or upper/lower limit positioning.
Configure a circuit so that the programmable controller is turned on first and then the external power supply.
If the external power supply is turned on first, an accident may occur due to an incorrect output or
malfunction.
[Design Precautions]
CAUTION
Do not install the control lines or communication cables together with the main circuit lines or power
cables. Keep a distance of 100mm (3.94 inches) or more between them. Failure to do so may result in
malfunction due to noise.
[Installation Precautions]
WARNING
Shut off the external power supply (all phases) before installation. Failure to do so may result in electric
shock.
[Installation Precautions]
CAUTION
Use the programmable controller in an environment that meets the general specifications in this User’s
Manual.
Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the
product.
Securely fix the module with a DIN rail or mounting screws. Incorrect mounting may cause malfunction,
failure or drop of the module. When using this product in an environment of frequent vibrations, fix the
module with a screw.
Tighten the screw within the specified torque range.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.
Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may result in damage to, malfunction, or failure of the product.
Do not directly touch any conductive parts and electronic components of this product. Doing so can
cause malfunction or failure of the product.
