LG Electronics 120S user manual Not doing so could cause a malfunction, failure or drop

SAFETY INSTRUCTIONS

Design Precautions

Caution

Do not bunch the control wires or communication cables with the main circuit or power wires, or install them close to each other. They should be installed 100mm (3.94inch) or more from each other.

Not doing so could result in noise that would cause erroneous operation.

Installation Precautions

Caution

Use the PLC in an environment that meets the general specification contained in this manual or datasheet.

Using the PLC 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.

Completely turn off the power supply before loading or unloading the module.

Not doing so could result in electric shock or damage to the product.

Make sure all modules are loaded correctly and securely.

Not doing so could cause a malfunction, failure or drop.

Make sure I/O and extension connector are installed correctly.

Poor connection could cause an input or output failure.

When install the PLC in environment of much vibration, be sure to insulate the PLC from direct vibration.

Not doing so could cause electric shock, fire, and erroneous operation.

Be sure to there are no foreign substances such as conductive debris inside the module.

Conductive debris could cause fires, damage, or erroneous operation.