Mitsubishi QJ71E71-100 Series, Руководство пользователя

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[Design Precautions]
!
DANGER
•
Do not write any data in the "system area" of the buffer memory of the intelligent function
module. Also, do not output (turn on) the "use prohibited" signal, which is one of the output
signals from the PLC CPU to the intelligent function module. If data is written to the "system
area" or the "use prohibited" signal is output, there is a risk that the PLC system may
malfunction.
!
CAUTION
•
Do not bundle the control wires and the communication cables with the main circuit and the
power wires, and do not install them close to each other. They should be installed at least 100
mm (3.94 in.) away from each other. Failure to do so may generate noise that may cause
malfunctions.
•
When the status control (remote RUN/STOP, etc) of the PLC CPU is performed from the
external device, select the "Always wait for OPEN" parameter set by an user in advance. (Select
with the initial timing setting in the operational setting.) If "Do not wait for OPEN" is selected the
communication line at remote STOP is closed. The communication line cannot be reopened on
the PLC CPU side after that, and the remote RUN from the external device cannot start either.
[Installation Precautions]
!
DANGER
•
Use the PLC in an environment that meets the general specifications listed in the user's manual
for the CPU module to use. Using the PLC in any other operating environments may cause
electric shocks, fires or malfunctions, or may damage or degrade the module.
•
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.
If the module is not installed properly, it may cause the module to malfunction, fail or fall off.
Secure the module with screws especially when it is used in an environment where constant
vibrations may occur.
•
Be sure to tighten the screws using the specified torque. If the screws loose, it may cause the
module to short-circuit, malfunction or fall off. If the screws are tightened excessively, it may
damage the screws and cause the module to short-circuit, malfunction or fall off.
•
Before mounting or dismounting the module, make sure to shut off all phases of the external
power supply. Failure to do so may damage the module.
•
Do not directly touch the conducting parts and electronic parts of the module.
This may cause the module to malfunction or fail.