Safety Precautions - Mitsubishi MELSEC-Q Series User Manual

Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the User's Manual for the CPU module.
In this section, the safety precautions are ranked as "DANGER" and "CAUTION".
DANGER
CAUTION
Note that the CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the precautions of both levels because they are important to personal safety.
Please keep this manual accessible when required and always forward it to the end user.
[DESIGN PRECAUTIONS]
Do not write data into the "system area" of the buffer memory of intelligent function modules. Also,
do not use any "prohibited to use" signals as an output signal to an intelligent function module from
the programmable controller CPU.
Writing data into the "system area" or outputting a signal for "prohibited to use" may cause a
malfunction of the programmable controller system.
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 100 mm (3.94 inch) or more from each other.
Not doing so could result in noise that may cause malfunction.

SAFETY PRECAUTIONS

(Read these precautions before use.)
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight personal injury or physical damage.
DANGER
CAUTION
A
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