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[Installation Precautions]
[Wiring Precautions]
CAUTION
● Use a safety programmable controller in the environment that meets the general specifications
described in the QSCPU User's Manual (Hardware Design, Maintenance and Inspection). Using this
programmable controller in an environment outside the range of the general specifications could
result in electric shock, fire, erroneous operation, and damage to or deterioration of the product.
● While pressing the installation lever located at the bottom of module, insert the module fixing tab into
the fixing hole in the base unit until it stops. Then, securely mount the module with the fixing hole as a
supporting point. Incorrect loading of the module can cause a failure or drop. Secure the module to
the base unit with screws. Tighten the screw in the specified torque range. If the screws are too loose,
it may cause a drop of the screw or module. Overtightening may cause a drop due to the damage of
the screw or module.
● Completely turn off the external supply power used in the system before mounting or removing the
module. Not doing so could result in damage to the product.
● Do not directly touch the module's conductive parts or electronic components. Doing so may cause
malfunctions or a failure.
WARNING
● Be sure to shut off all phases of the external supply power used by the system before wiring. Not
completely turning off all power could result in electric shock or damage to the product.
● When energizing or operating the module after installation or wiring, be sure to close the attached
terminal cover. Not doing so may result in electric shock.