Mitsubishi Electric Melsec Q Series User Manual page 9

[Design Precautions]
 Do not install the control lines or communication cables together with the main circuit lines or
power cables. Keep a distance of 100mm or more between them. Failure to do so may result in
malfunction due to noise.
 When changing the operating status of the CPU module (such as remote RUN/STOP) from the
external device, select "Always wait for OPEN (Communication possible at STOP time)" for the
"Initial timing" setting in the network parameter. The communication line will be closed when "Do
not wait for OPEN (Communications impossible at STOP time)" is selected and the remote
STOP is executed from the external device. Consequently, the CPU module cannot reopen the
communication line, and the external device cannot execute the remote RUN.
[Installation Precautions]
 Use the programmable controller in an environment that meets the general specifications in the
Safety Guidelines included with the MELSEC-L series CPU module. Failure to do so may result
in electric shock, fire, malfunction, or damage to or deterioration of the product.
 To interconnect modules, engage the respective connectors and securely lock the module joint
levers until they click. Incorrect interconnection may cause malfunction, failure, or drop of the
module.
 Shut off the external power supply (all phases) used in the system before mounting or removing
a module. Failure to do so may cause the module to fail or malfunction.
 Do not directly touch any conductive parts and electronic components of the module. Doing so
can cause malfunction or failure of the module.
[Wiring Precautions]
 When connecting a cable with connector to the module, connect the connector part to the
module securely.
 Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be
pulled, resulting in damage to the module or cables or malfunction due to poor contact.
 Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter
can cause a fire, failure, or malfunction.
 A protective film is attached to the top of the module to prevent foreign matter, such as wire
chips, from entering the module during wiring. Do not remove the film during wiring. Remove it
for heat dissipation before system operation.
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CAUTION
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CAUTION
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CAUTION
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