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MELSEC-Q
4 SETTINGS AND PROCEDURES FOR OPERATION
4.3 Mounting and Installation
This section describes the precautions to be observed when handling the QJ71AS92
from unpacking to installation, and the installation environment. are explained in this
section.
4.3.1 Precautions for Handling
CAUTION
•
Use the programmable controller in an environment that meets the general specifications in CPU
module User’s Manual.
Using the programmable controller in the environments outside the ranges stated in the general
specifications will cause electric shock, fire, misoperation, or damage to/deterioration of the product.
•
While pressing the lever on the lower part of the module, fully insert the module fixing latch into the hole
of the base unit, snap the module into place, and tighten the module fixing screws with the specified
torque.
Failure to observe this could result in damage to the screws or module, module falling, short or
misoperation.
•
Always shut off all phases of the programmable controller power supply and AS-i power supply
externally before mounting or removing the module.
Failure to shut off all phases could lead to product damage.
•
Do not touch conductive parts or electronic components of the module with your bare hands.
This could cause Misoperation or failure of the module.
(1) The module case and communication connector are made of resin, so take care
not to drop or apply strong impacts.
(2) Tighten the screws such as module fixing screws within the following ranges.
Screw location
Tightening torque range
Module fixing screw
(normally not required) (M3 screw)
*1
0.36 to 0.48 N.m
Communication connector mounting screw
0.40 to 0.50 N.m
Communication connector wiring mounting screw
0.50 to 0.60 N.m
*1 The module can be easily fixed onto the base unit using the hook at top of the module.
However, it is recommended to secure the module with the module fixing screw if the
module is subject to significant vibration.
4.3.2 Installation Environment
Refer to the User's Manual of the CPU module being used for details on the installation
environment.
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