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Mitsubishi Electric LCPU-U-HW Safety Manuallines Page 7

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[Design Precautions]
Precautions for using digital-analog converter modules
and analog input/output modules
● At power-on, a voltage may occur or a current may flow between output
terminals for a moment. In this case, start the control after analog outputs
become stable.
● Power on or off the external power supply while the programmable controller
is on. Failure to do so may result in incorrect output or malfunction.
Precautions for using flexible high-speed I/O control
● Do not install the control lines or communication cables together with the main
circuit lines or power cables. Keep a distance of 150mm or more between
them. Failure to do so may result in malfunction due to noise.
[Installation Precautions]
● Shut off the external power supply for the system in all phases before
mounting or removing the module. Failure to do so may result in electric shock
or cause the module to fail or malfunction.


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