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Design instructions, Caution, Mounting instructions – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

Page 4: Wiring instructions, Danger, Startup/maintenance instructions

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[Design Instructions]

!

CAUTION

Do not bundle or adjacently lay the control wire or communication cable with the main circuit or

power wire.

Separate these by 100mm (3.94in.) or more.

Failure to observe this could lead to malfunctioning caused by noise.

[Mounting Instructions]

!

CAUTION

Use the PLC within the general specifications environment given in this manual.

Using the PLC outside the general specification range environment could lead to electric

shocks, fires, malfunctioning, product damage or deterioration.

While pressing the installation lever located at the bottom of module, insert the module fixing

tab into the fixing hole in the base unit until it stops. Then, securely mount the module with the

fixing hole as a supporting point.

Incorrect loading of the module can cause a malfunction, failure or drop.

When using the PLC in the environment of much vibration, tighten the module with a screw.

Tighten the screw in the specified torque range.

Undertightening can cause a drop, short circuit or malfunction.

Overtightening can cause a drop, short circuit or malfunction due to damage to the screw or

module.

Completely turn off the externally supplied power used in the system before mounting or

removing the module.

Not doing so may damage the product.

[Wiring Instructions]

!

DANGER

Always confirm the terminal layout before connecting the wires to the module.

[Startup/Maintenance Instructions]

!

DANGER

Completely turn off the externally supplied power used in the system before cleaning or

tightening the screws.

Failure to turn all phases OFF could lead to electric shocks.