FX3G INSTALLATION MANUAL
9
4.1 WIRING
n CABLE END TREATMENT AND TIGHTENING TORQUE
• For the terminals of FX3G series PLC, M3 screws are used.
The electric wire ends should be treated as shown below.
• Tighten the screws to a torque of 0.5 to 0.8 N•m.
• Do not tighten terminal screws with a torque exceeding the
regulation torque.
• Failure to do so may cause equipment failures or malfunctions.
n WHEN ONE WIRE IS CONNECTED TO ONE TERMINAL
Terminal Manufacturer Type No. Certification
Pressure
Bonding Tool
JAPAN SOLDERLESS
TERMINAL MFG CO
LTD (JST)
FV1.25-B3A
UL Listed YA-1(JST)
FV2-MS3
n WHEN TWO WIRES ARE CONNECTED TO ONE TERMINAL
Terminal Manufacturer Type No. Certification
Pressure
Bonding Tool
JAPAN SOLDERLESS
TERMINAL MFG CO
LTD (JST)
FV1.25-B3A UL Listed YA-1(JST)
n REMOVAL AND INSTALLATION OF QUICK-RELEASE
TERMINAL BLOCK
REMOVAL Unscrew the terminal block mounting screw [both right and
left screws] evenly, and remove the terminal block.
INSTALLATION Place the terminal block in the specified position, and
tighten the terminal block mounting screw evenly [both right and left
screws]. Tightening torque 0.4 to 0.5 N • m
Do not tighten the terminal block mounting screws with a torque
exceeding the regulation torque.
Failure to do so may cause equipment failures or malfunctions.
* Pay attention so that the center of the terminal block is not lifted.
4.2 GROUNDING
Ground the PLC as stated below.
• Perform class D grounding. (Grounding resistance: 100 Ω or less)
• Ground the PLC independently if possible.
If it cannot be grounded independently, ground it jointly as shown
below.
• Use ground wires thicker than AWG14 (2 mm²).
• Position the grounding point as close to the PLC as possible to
decrease the length of the ground wire.
4.3 POWER SUPPLY SPECIFICATIONS AND
WIRING DIAGRAM
n POWER SUPPLY SPECIFICATIONS
Item
Specification
AC Power Type DC Power Type
Supply Voltage 100 to 240VAC 24VDC
Allowable Supply Voltage
Range
85 to 264VAC 20.4 to 28.8VDC
Rated Frequency 50/60Hz -
Allowable Instantaneous
Power Failure Time
Operation can be
continued upon
occurrence of
instantaneous power
failure for 10 ms or less.
Operation can be
continued upon
occurrence of
instantaneous power
failure for 5 ms or less.
Power Fuse
FX3G-14M_
FX3G-24M_
250V 1A 125V 2.5A
FX3G-40M_
FX3G-60M_
250V 3.15A 125V 3.15A
Rush Current Main unit
30A max. 5ms or
less/100 VAC 50A max.
5ms or less/200 VAC
30A max. 1ms or less/
24 VDC
Power
Consumption
*1
FX3G-14M_ 31W 19W
FX3G-24M_ 32W 21W
FX3G-40M_ 37W 25W
FX3G-60M_ 40W 29W
24VDC
Service
Power Supply
Main Unit 400mA -
*1 This item shows values when all 24V DC service power supplies are used in the
maximum configuration connectable to the main unit or input/output extension units
(The DC power type main unit does not have a 24V DC service power supply.)
φ3.2 (0.13")
6.2 mm (0.24")
or less
Terminal
screw
Solderless
terminal
6.2 mm (0.24")
or less
φ3.2 (0.13")
Terminal
6.3 mm(0.25")
or more
6.3 mm(0.25")
or more
6.2 mm (0.24")
or less
6.2 mm (0.24")
or less
φ3.2 (0.13")
φ3.2 (0.13")
Terminal
Terminal
screw
Solderless
terminal
PLCPLCPLC
Other
equipment
Shared grounding
(Good condition)
Common grounding
(Not allowed)
Independent grounding
(Best condition)
Other
equipment
Other
equipment
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