Mitsubishi FX3U SERIES User Manual page 130

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
INSTALLATION PRECAUTIONS
• Use the product within the generic environment specifications described in Section 4.1 of this manual.
Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas (salt air, Cl
SO or NO
2 2
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 to avoid failure or malfunctions.
• Install the product securely using a DIN rail or mounting screws.
FX -10GM, FX
2N
Main unit, FX
FX Series special extension block/special adapter
3U
• 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.
• Make sure to affix the function extension board with tapping screws.
Tightening torque: 0.3 to 0.6 N
Contact failures may cause malfunctions.
• When drilling screw holes or wiring, make sure cutting or wire debris does 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 the extension cables, peripheral device cables, input/output cables and battery connecting cable
securely to their designated connectors.
Unsecured connection may cause malfunctions.
• Connect the display module, memory cassette, and function extension board securely to their designated
connectors.
Unsecured connection may cause malfunctions.
• Turn off the power 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
- Extension units/blocks and the FX Series terminal block
- Battery and memory cassette
WIRING PRECAUTIONS
• Connect the AC power supply to the dedicated terminals specified in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will burn
out.
• Cut off all phases of the power supply externally before installation or wiring work in order to avoid damage to the
product or electric shock.
• Make sure to attach the terminal cover, offered as an accessory, before turning on the power or initiating
operation after installation or wiring work.
Failure to do so may cause electric shock.
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), flammable gas, vibration or impacts, or exposed to high temperature, condensation, or rain and
-20GM, and terminal block
2N
Series I/O extension unit/block, and FX
2N
m
•
DIN rail only
/FX /
0N 2N
DIN rail or direct mounting
8 Installation In Enclosure
, H S,
2 2