Mitsubishi Electric MELSEC iQ-R Series User Manual page 8

[Wiring Precautions]
WARNING
● Shut off the external power supply (all phases) used in the system before installation and wiring.
Failure to do so may result in electric shock or cause the module to fail or malfunction.
● After installation and wiring, attach a blank cover module (RG60) to each empty slot before powering
on the system for operation. Also, attach an extension connector protective cover
extension cable connector as necessary. Directly touching any conductive parts of the connectors
while power is on may result in electric shock.
*1 For details, please consult your local Mitsubishi Electric representative.
[Precautions for using CC-Link IE TSN (when optical fiber cables are used)]
● The optical transmitter and receiver of the CC-Link IE TSN master/local module (1000BASE-SX
model) use laser diodes (class 1 in accordance with IEC 60825-1/JIS C6802). Do not look directly at a
laser beam. Doing so may harm your eyes.
[Wiring Precautions]
CAUTION
● Individually ground the FG and LG terminals of the programmable controller with a ground resistance
of 100 ohms or less. Failure to do so may result in electric shock or malfunction.
● Use applicable solderless terminals and tighten them within the specified torque range. If any spade
solderless terminal is used, it may be disconnected when the terminal screw comes loose, resulting in
failure.
● Check the rated voltage and signal 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 fire
or failure.
● Connectors for external devices must be crimped or pressed with the tool specified by the
manufacturer, or must be correctly soldered. Incomplete connections may cause short circuit, fire, or
malfunction.
● Securely connect the connector to the module. Poor contact may cause malfunction.
● Do not install the control lines or communication cables together with the main circuit lines or power
cables. Doing so may result in malfunction due to noise. Keep a distance of 100mm or more between
those cables. (Except for the RJ71GN11-SX)
● Place the cables in a duct or clamp them. If not, dangling cables may swing or inadvertently be pulled,
resulting in malfunction or damage to modules or cables.
In addition, the weight of the cables may put stress on modules in an environment of strong vibrations
and shocks.
Do not clamp the extension cables with the jacket stripped. Doing so may change the characteristics
of the cables, resulting in malfunction.
● Check the interface type and correctly connect the cable. Incorrect wiring (connecting the cable to an
incorrect interface) may cause failure of the module and external device.
6
*1
to each unused