Installation - Mitsubishi Electric MELSEC FX Series User Manual

FX -4LC User's Manual
3U
4.

Installation

INSTALLATION PRECAUTIONS
• Make sure to shut down all phases of the power supply externally before installing.
Failure to do so may cause electric shock or damage to the product.
INSTALLATION PRECAUTIONS
• Use the product within the generic environment specifications described in PLC main unit manual (Hardware Edition).
Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas (salt air, Cl
flammable gas, vibration or impacts, or expose it to high temperature, condensation, or rain and wind.
If the product is used in such conditions, electric shock, fire, malfunctions, deterioration or damage may occur.
• Do not touch the conductive parts of the product directly.
Doing so may cause device failures or malfunctions.
• Install the product securely using a DIN rail or mounting screws.
• Install the product on a flat surface.
If the mounting surface is rough, undue force will be applied to the PC board, thereby causing nonconformities.
• When drilling screw holes or wiring, make sure that cutting and wiring debris do not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Be sure to remove the dust proof sheet from the PLC's ventilation port when installation work is completed.
Failure to do so may cause fire, equipment failures or malfunctions.
• Connect extension cables securely to their designated connectors.
Loose connections may cause malfunctions.
• Turn off the power to the PLC before attaching or detaching the following devices.
Failure to do so may cause device failures or malfunctions.
- Peripheral devices, display modules, expansion boards and special adapters
- I/O extension units/blocks, FX Series terminal block and the special function units/blocks
- Battery and memory cassette
The 4LC unit can be connected to the right side of the main unit, extension unit or extension block.
To connect to an FX
necessary.
For details, refer to the respective PLC manual.
The 4LC may be installed in a control cabinet with a 35mm wide DIN46277 DIN rail mounting or M4 screw
direct mounting.
Cautions in examining installing method
When the system is laid out in two stages, do not mount 4LC at the top of the second stage, or FX
cannot be installed directly.
24
PLC or FX PLC extension block, the FX
3UC 2NC
, H
2
-CNV-IF or FX
2NC
→ Refer to the FX
Hardware Edition.
3G
→ Refer to the FX
Hardware Edition.
3U
→ Refer to the FX
Hardware Edition.
3UC
4 Installation
S, SO , or NO ),
2 2 2
-1PS-5V is
3UC
-CNV-BC
2N