Mitsubishi MELSEC-A Series Reference Manual page 4

[INSTALLATION PRECAUTIONS]
Use the programmable controller in the operating environment that meets the general specifications
of this manual.
Using the programmable controller in any other operating environments may cause electric shocks,
fires or malfunctions, or may damage or degrade the product.
Fully insert the protection on the bottom of the module into the hole in the base unit and press the
module into position.
(Be sure to screw the AnS series module to the base unit to the specified torque.)
Not installing the module correctly could result in malfunction, damage, or drop of some pieces of the
product.
Completely turn off the externally supplied power used in the system before mounting or removing
the module. Failure to do so may damage the product.
Do not directly touch the conducting parts and electronic parts of the module.
This may cause the module to malfunction or fail.
[WIRING PRECAUTIONS]
Completely turn off the externally supplied power used in the system when installing or placing
wiring.
Failure to do so may cause electric shocks or damage the product.
Solder coaxial cable connectors properly.
Incomplete soldering may result in malfunctioning.
Be careful not to let foreign particles such as chaff and wire chips get inside the module.
They may cause a fire, mechanical breakdown or malfunction.
When disconnecting a communication cable or power cable, do not pull it by holding the cable part.
To disconnect the cable, hold its connector that is plugged into the module.
Loosen screws for a terminal block before disconnecting a cable for connecting terminal block.
Pulling the cable part with the cable still connected to the module may damage the module and/or
cable, or cause malfunctions due to poor cable contact.
Make sure to place the communication and power cables to be connected to the module in a duct or
fasten them using a clamp. If the cables are not placed in a duct or fastened with a clamp, their
positions may become unstable and may move, or they may be pulled inadvertently. This may
damage the module and the cables or cause the module to malfunction because of faulty cable
connections.
CAUTION
DANGER
CAUTION
A - 2