User`s manual

3
3. Handling
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 dropping out
of the module.
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 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.
3.1 Handling Precautions
(1) Since the module case is made of resin, do not drop it or subject it to
strong impact.
(2) The module can easily be secured to the base unit using the hooks
located at the top of the module. However, if the module is to be placed in
an area that is subject to strong vibration or impact, we recommend that it
is secured with module mounting screws (to be provided by the user). In
this case, tighten the module mounting screws within the following torque
range.
Module mounting screws (M3
×
12): Tightening torque range is from 36 to
48 N
⋅
cm.