408
FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
20 FX-16/32E*-*-TB (Terminal Block)
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, Cl2, H2S,
SO
2 or NO2), flammable gas, vibration or impacts, or exposed 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 to avoid failure 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 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.
• 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.
WIRING PRECAUTIONS
• Connect the DC power supply wiring to the dedicated terminals described 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.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• 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.
• Make sure to properly wire the FX Series terminal blocks in accordance with the precautions below in order to
prevent electric shock, a short-circuit, wire breakage, or damage to the product:
- The disposal size of the cable end should follow the dimensions described in this manual.
- Tightening torque should be between 0.5 and 0.8 N
•
m.
FX2N-10GM, FX2N-20GM, and terminal block DIN rail only
Main unit, FX
2N Series I/O extension unit/block, and FX0N/FX2N/
FX
3U Series special extension block/special adapter
DIN rail or direct mounting
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