3.1 Wiring
This section explains the wiring of the terminal type.
For the connectors types, refer to the following manual.
→ Refer to FX
3G Series User's Manual - Hardware Edition.
3.1.1 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.
• When one wire is connected to one terminal
<Reference>
• When two wires are connected to one terminal
<Reference>
3.1.2 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.
3.2 Power supply specifications and example of
external wiring
As for the details of the power supply specifications and example of
external wiring, refer to the following manual.
→ Refer to FX3G Series User's Manual - Hardware Edition.
3.2.1 Power supply specifications
[Main unit, Input/output extension units]
*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,
For the power (current) consumed by the input/output
extension units/blocks, refer to FX
3G Series User's Manual -
Hardware Edition. (The DC power type main unit does not have
a 24V DC service power supply.)
→ For the power consumed by the special extension blocks,
refer to the respective manual.
→ Refer to FX3G Series User’s Manual - Hardware Edition.
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
Terminal
Manufacturer
Type No. Certification
Pressure
Bonding Tool
JAPAN
SOLDERLESS
TERMINAL MFG
CO LTD (JST)
FV1.25-B3A UL Listed YA-1(JST)
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
Item
Specification
AC power type DC power type
Supply voltage 100 to 240V AC 24V DC
Allowable
supply voltage
range
85 to 264V AC 20.4 to 28.8V DC
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
FX2N-32E 250V 3.15A -
FX2N-48E 250V 5A 250V 5A
Rush current
Main unit
30A max. 5ms or
less/100 V AC
50A max. 5ms or
less/200 V AC
30A max. 1ms or
less/24 V DC
FX2N-32E
,
FX2N-48E
40A max. 5ms or
less/100 V AC
60A max. 5ms or
less/200 V AC
-
Power
consumption
*1
FX3G-14M 31W 19W
FX3G-24M 32W 21W
FX3G-40M 37W 25W
FX3G-60M 40W 29W
FX2N-32E 30W(35VA) -
FX2N-48E 35W(45VA) 30W
24V DC
service
power supply
Main unit 400mA -
FX2N-32E 250mA -
FX2N-48E 460mA -
5V DC built-
in power
supply
FX2N-32E
690mA or less 690mA or less
FX2N-48E
3.2.2 Example of external wiring (AC power type)
100 to 240V AC power is supplied to the main unit and input/output
extension unit.
→ For the details of wiring work, refer to section 3.1.
3.2.3 Example of external wiring (DC powewr type)
24V DC power is supplied to the main unit and input/output
extension unit.
→ For the details of wiring work, refer to section 3.1.
3.3 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 mm
2
).
• Position the grounding point as close to the PLC as possible to
decrease the length of the ground wire.
3.4 Input specifications and external wiring
As for the details of the Input specifications and external wiring, refer
to the following manual.
→ Refer to FX3G Series User's Manual - Hardware Edition.
3.4.1 Input specifications (24V DC input type)
Power on
100 to 240V AC
PL
MC
MC
DC AC
MCMC
Breaker
*
L
N
PLC
L
N
Main unit
Input/output
extension
unit
Emer-
gency
DC
power
supply
Power supply for loads connected
to PLC output terminals
Fuse
*Class D grounding
See section 3.3 for
details.
24V DC
PL
Power on
Emer-
gency
MC
MC
Power supply for loads connected
to PLC output terminals
MCMC
* Class D grounding
See section 3.3 for
details.
Circuit protector
Fuse
*
PLC
Main unit
Input/output
extension
unit
Item Specification
Number of
input
points
FX
2N
-8ER
4 points (8 points)*
1
FX
3G
-14M
,
FX
2N
-8EX
8 points
FX
3G
-24M
14 points(16 points)*
1
FX
2N
-16EX
,
FX
2N
-32E
16 points
FX
3G
-40M
,
FX
2N
-48E
24 points
FX
3G
-60M
36 points(40 points)*
1
Input connecting type Refer to FX3G Series
User's Manual -
Hardware Edition
Input form
Input
signal
voltage
Main unit
AC power type 24V DC +10%, -10%
DC power type 20.4 to 28.8V DC
Input/output
extension
unit
AC power type 24V DC +10%, -10%
DC power type 24V DC +20%, -30%
Input
impedance
Main unit
X000 to X007 3.3kΩ
X010 or more 4.3kΩ
Input/output
extension unit/block
4.3kΩ
Input
signal
current
Main unit
X000 to X007 7mA/24V DC
X010 or more 5mA/24V DC
Input/output
extension unit/block
5mA/24V DC
ON input
sensitivity
current
Main unit
X000 to X007 4.5mA or more
X010 or more 3.5mA or more
Input/output
extension unit/block
3.5mA/24V DC
OFF input sensitivity current 1.5mA or less
PLCPLCPLC
Other
equipment
Shared grounding
(Good condition)
Common grounding
(Not allowed)
Independent grounding
(Best condition)
Other
equipment
Other
equipment
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