• Use the programmable controller in an environment that meets the general specifications in the user’s manual for the CPU module used.

Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the product.

• To mount the module, while pressing the module mounting lever located in the lower part of the module, fully insert the module fixing projection(s) in the hole(s) in the base unit and press the module until it snaps into place.

Incorrect interconnection may cause malfunction, failure, or drop of the module.

When using the programmable controller 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.

• When using an extension cable, connect it to the extension cable connector of the base unit securely.

Check the connection for looseness.

Poor contact may cause incorrect input or output.

• When using a memory card, fully insert it into the memory card slot.

Check that it is inserted completely.

Poor contact may cause 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 the product.

• Do not touch the module during turning on electricity and immediately after power supply interception. There is fear of a burn.

• Do not directly touch any conductive parts and electronic components of the module.

Doing so can cause malfunction or failure of the module.