A-2
[Installation Precautions]
CAUTION
z
While pressing the installation lever located at the bottom of module, insert
the module fixing tab into the fixing hole in the base unit until it stops. Then,
securely mount the module with the fixing hole as a supporting point.
Incorrect loading of the module can cause a malfunction, failure or drop.
When using the programmable controller in the environment of much
vibration, tighten the module with a screw.
z
Tighten the screw in the specified torque range.
Undertightening can cause a drop, short circuit or malfunction.
Overtightening can cause a drop, short circuit or malfunction due to damage
to the screw or module.
z
Completely turn off the externally supplied power used in the system before
mounting or removing the module. Not doing so could result in damage to
the product.
z
Do not directly touch the module's conductive parts or electronic
components.
Touching the conductive parts could cause an operation failure or give
damage to the module.
[Wiring Instructions]
CAUTION
z
Use crimp-contact, pressure-displacement or soldering to wire the
connectors for external connections properly using the
manufacturer-specified tools.
Imperfect connections could result in short circuit, fires, or erroneous
operation.
z
Shut off the external power supply for the system in all phases before
connecting the AUI cable.
z
When connecting a cable with connector to the module, connect the
connector part to the module securely.
z
Make sure to place the communication and power cables to be connected to
the module in a duct or fasten them using a clamp.
If the cables are not placed in a duct or fastened with a clamp, their positions
may be unstable or moved, and they may be pulled inadvertently. This may
damage the module and the cables or cause the module to malfunction
because of faulty cable connections.
z
Tighten the terminal screws with the specified torque.
If the terminal screws are loose, it could result in short circuits, fire, or
erroneous operation.
Tightening the terminal screws too far may cause damages to the screws
and/or the module, resulting in fallout, short circuits, or malfunction.
Summary of Contents for MELSEC QJ71E71-100
Page 19: ...11 MEMO ...
