Mitsubishi Electric MES3-255C-EN, User Manual

Page: 5 / 44

5
Part
(Partie)
Tightening torque
(Couple de serrage)
Terminal screw for power supply section
terminal block
(Borne de terminal pour terminal bloc
dans la section d'alimentation électrique) (M3.5 screw)
(Vis M3.5)
0.8 to 1.0 N·m
Terminal screw for CC-Link
communication section terminal block
(Borne de terminal pour terminal bloc
dans la section de CC-Link
communication)
(M3 screw)
(Vis M3)
0.42 to 0.58 N·m
Mounting screw for CC-Link
communication section terminal block
(Borne de montage pour terminal bloc
dans la section de CC-Link
communication)
(M3.5 screw)
(Vis M3.5)
0.66 to 0.89 N·m
Terminal screw for contact output
section terminal block
(Borne de terminal pour terminal bloc
dans la section de contact sortie) (M3 screw)
(Vis M3.5)
0.42 to 0.58 N·m
Mounting screw for contact output
section terminal block
(Borne de montage pour terminal bloc
dans la section de contact sortie) (M3.5 screw)
(Vis M3.5)
0.66 to 0.89 N·m
Unit fixing screw
(Vis pour fixation l'unité) (M3 screw × 12)
(Vis M3)
0.36 to 0.48 N·m

Make sure that all the terminal covers are mounted. Failure to mount them may cause electric shock.
(Assurez-vous que tout les couvercle sont attachés. Manque d'attachement peut causer mauvais fonctionnement
du dispositif, feu, ou commotion électrique.)

Avoid installing in a panel where high pressure equipment is installed.
Please install a surge suppressor in the device which is prone to noise.

CC-Link communication signal line and other signal lines, auxiliary power supply line, the power supply frequency
input line to prevent the introduction of noise, please do not approach and unity of the power line or high voltage
line.
Please separate the separation distance when the signal line and the power line / high voltage line are
parallel as a guide. (Excluding terminal block input section)
[CC-Link communication signal line]
Condition Distance
All power lines More than 100mm
[Other signal line / auxiliary power line / power frequency input line]
Condition Distance
Power line of 600V or less More than 300mm
Other power lines More than 600mm

Please connect the shield wire of the CC-Link communication cable to the SLD terminal of each of the CC-Link
communication terminals.

To prevent induction noise, keep control lines and communication cables as far away from power lines as
possible.
(We recommend that you keep a distance of 100 mm or longer between them.)
Do not place them in a board containing high-voltage equipment.
Mount surge absorbers on equipment that is likely to produce noise.

Connect both ends of the shield line for CC-
Link communication cable to the “SLD” terminal of the units.
“SLD” and “FG” are connected together inside each unit.
Make sure to insulate the shield line using vinyl tape or the like.

For the actual usage, perform D-
type grounding dedicated for the “FG” terminal.

Perform insulation withstand voltage tests and insulation resistance tests without connecting the FG terminal to
the external case (ground).

Precautions concerning the preparation before use

Make sure that your installation site meets the requirements for the operation environment and usage conditions.

Before use, perform the settings for the product. Wrong settings may cause the product to malfunction.

Check the power ratings of the product.

After installing the product and performing wiring work, peel off the dustproof seal.
Failure to peel it off may cause the product to malfunction due to heat generation.

The product has a built-in lithium battery. It is not connected to the product when shipped from the factory.
Connect it before using the product. (Refer to
“6. Battery Installation and Replacement” of this manual)

Precautions for use