Safety Precautions - Mitsubishi Electric Melsec Q Series User Manual

This manual contains important instructions for MELSEC-Q series QE81WH.
Before using this product, please read this manual and the relevant manuals carefully and pay full
attention to safety to handle the product correctly.
The precautions given in this manual are concerned with this product only. For the safety precautions of
the programmable controller system, refer to the user's manual of the CPU module used.
In this manual, the safety precautions are classified into two levels: "DANGER" and "CAUTION".
DANGER
CAUTION
Under some circumstances, failure to observe the precautions given under "
serious consequences．
Observe the precautions of both levels because they are important for personal and system safety.
Keep this manual in an accessible place for future reference whenever needed, and make sure it is
delivered to the end user.
[Precautions for Operating Environment and Conditions]
 Do not use this product in the places listed below. Failure to follow the instruction may cause
malfunctions or decrease of product-life.
- Places the Ambient temperature exceeds the range 0 ºC to +55 ºC.
- Places the Relative humidity exceeds the range 5 % to 95 % or condensation is observed.
- Altitude exceeds 2000 m.
- Places exposed to rain or water drop.
- Dust, corrosive gas, saline and oil smoke exist.
- Vibration and impact exceed the specifications.
- Installation on excluding the control board
● SAFETY PRECAUTIONS ●
(Read these precautions before using this product.)
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.
Caution
A - 1
IB63563F
CAUTION" may lead to