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[Wiring Precautions]
CAUTION
Ground the FG and LG terminals to the protective ground conductor dedicated to the programmable
controller.
Failure to do so may result in electric shock or malfunction.
Prevent foreign matter such as dust or wire chips from entering the module.
Such foreign matter can cause a fire, failure, or malfunction.
Check the rated voltage and terminal layout before wiring to the module, and connect the cables
correctly.
Connecting a power supply with a different voltage rating or incorrect wiring may cause a fire or
failure.
Securely connect the Ethernet and RS-232 cables to respective connectors of the C Controller
module.
Do not install the control lines or the communication cables together with the main circuit lines or
power cables.
Doing so may result in malfunction due to noise.
Tighten the terminal screw within the specified torque range.
Undertightening can cause short circuit, fire, or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.
Place the communication and power 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 malfunctions due to poor contact.
When disconnecting a communication or power cable from the module, do not hold and pull the
cable part.
Doing so may cause malfunction or damage to the module or cable.
For a cable with connector, hold the connected connector by hand to disconnect the cable.
For a screw-type cable, loosen the screw to disconnect the cable.
Do not connect outputs of multiple power supply modules in parallel.
The power supply modules may produce heat, causing a fire or failure.
Connectors for external connection must be crimped or pressed with the tool specified by the
manufacturer, or must be correctly soldered.
For the tool, refer to the user's manual for the relevant I/O module.
Incomplete connections could result in short circuit, fire or malfunction.
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