Mitsubishi FX3UC SERIES User Manual page 4

2. INSTALLATION PRECAUTIONS
• Make sure to cut off all phases of the power supply externally before attempting installation or
wiring work.
Failure to do so may cause electric shock or damage to the product.
• Use the product within the generic environment specifications described in Section 3.1 of this
manual.
Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas
(salt air, Cl , H S, SO
2 2
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.
Main unit, FX Series I/O extension blocks, FX
2NC
special function blocks, special adapter, extension power supply unit,
FX -CNV-IF, FX -10GM, FX
2NC 2N
FX /FX Series I/O extension blocks, FX
0N 2N
function blocks, FX -1RM(-E)
2N
• 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 expansion board with tapping screws.
Tightening torque: 0.3 to 0.6 N
Loose connections may cause malfunctions.
• 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 the extension cables, peripheral device cables, input/output cables and battery
connecting cable securely to their designated connectors.
Loose connections may cause malfunctions.
• Connect the display module, memory cassette, FX
IF, extension power supply unit and expansion board securely to their designated connectors.
Loose connections 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 module, expansion boards and special adapters
- Extension blocks, FX Series terminal blocks, Connector conversion adapter and extension
power supply unit
- Battery and memory cassette
Safety Precaution
(Read these precautions before using.)
or NO ), flammable gas, vibration or impacts, or exposed to high
2 2
-20GM, FX Series terminal blocks
2N
/FX
0N
m
•
(2)
/FX Series
2NC 3UC
DIN rail only
/FX Series special DIN rail or direct
2N 3U
mounting
Series I/O extension blocks, FX
2NC
Reference
102
211
Reference
103
116
212
-CNV-
2NC