Mitsubishi MELSEC L Series User Manual page 10

[Wiring Precautions]
• Use applicable solderless terminals and tighten them within the specified torque range. If any
spade solderless terminal is used, it may be disconnected when a screw on the terminal block
comes loose, resulting in failure.
• Connectors for external device connection must be crimped or pressed with the tool specified by
the manufacturer, or must be correctly soldered.
Incomplete connections could result in short circuit, fire, or malfunction.
• Connect the connector to the module securely.
• Place the cables in a duct or clamp them.
If not, dangling cables may swing or inadvertently be pulled, resulting in damage to the module
or cables or malfunction due to poor connection.
• Confirm the interface type in advance and connect the cable correctly.
Connecting a cable to a different interface or incorrect wiring will cause failure of the module and
the external device.
• Tighten the terminal block 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, fire, or malfunction.
• When disconnecting the cable from the module, do not pull the cable by the cable part.
For the cable with connector, hold the connector by hand and pull it out. For the cable
connected to the terminal block, loosen the terminal block screws.
Failure to do so may result in malfunction and damage to the module or cable.
• 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.
[Startup/Maintenance Precautions]
• Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
• Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal block screws. Failure to do so may result in electric shock.
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When using the MELSEC-L series serial communication module
CAUTION
!
WARNING
!
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