User`s manual

A-1
DANGER
CAUTION
!
SAFETY PRECAUTIONS
!
(Always read before starting use)
When using this equipment, thoroughly read this manual. Also pay careful
attention to safety and handle the module properly.
These precautions apply only to this equipment.
Refer to the User’s Manual of the CPU module to use for a description of the
PLC system safety precautions.
These "Safety Precautions" classify the safety precautions into two categories:
"DANGER" and "CAUTION".
Procedures which may lead to a dangerous condition and
cause death or serious injury, if not carried out properly.
Procedures which may lead to a dangerous condition and
cause superficial to medium injury, or physical damage
only, if not carried out properly.
Depending on circumstances, procedures indicated by
CAUTION
may also
be linked to serious results.
In any case, it is important to follow the directions for usage.
Store this manual in a safe place so that you can take it out and read it
whenever necessary. Always forward it to the end user.
[INSTALLATION PRECAUTION]
CAUTION
!
Use the PLC in an environment that meets the general specifications contained in CPU
module User's Manual to use.
Using this PLC in an environment outside the range of the general specifications may
cause electric shock, fire, malfunction, and damage to or deterioration of the product.
!
When installing the module, securely insert the module fixing tabs into the mounting
holes of the base module while pressing the installation lever located at the bottom of
the module downward.
Improper installation may result in malfunction, breakdown or the module coming loose
and dropping.
Securely fix the module with screws if it is subject to vibration or shock during use.
Tighten the screws within the range of specified torque.
If the screws are loose, it may cause the module to fallout or malfunction.
If the screws are tightened too much, it may cause damage to the screw and/or the
module, resulting in fallout or malfunction.
!
Switch all phases of the external power supply off when mounting or removing the
module.
Not doing so may cause damage to the module.
!
Do not directly touch the conductive area or electronic components of the module.
Doing so may cause malfunction or failure in the module.