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WIRING PRECAUTIONS
Perform class D grounding (grounding resistance: 100 or less) of the grounding
terminal on the CPU module and extension modules with a wire 2 mm
Do not use common grounding with heavy electrical systems (refer to
section 3.3).
Connect the 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.
Make sure to observe the following precautions in order to prevent any
damage to the machinery or accidents due to malfunction of the PLC
caused by abnormal data written to the PLC due to the effects of noise.
- Do not bundle the power line, control line and communication cables
together with or lay them close to the main circuit, high-voltage line,
load line or power line. As a guideline, lay the power line, control line
and communication cables at least 100 mm away from the main circuit,
high-voltage line, load line or power line.
- Ground the shield of the shielded wire or shielded cable at one point on the
PLC. However, do not use common grounding with heavy electrical systems.
Ground the shield of the analog input/output cable at one point on the
signal receiving side.
However, do not use common grounding with heavy electrical systems.
3.1 Cable end treatment and tightening torque
3.1.1
Screw type terminal block
For the terminals of FX5U CPU module and I/O module, 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 Nm.
Do not tighten terminal screws with a torque outside the above-mentioned range.
Failure to do so may cause equipment failures or malfunctions.
When one wire is connected to one terminal
3.2
Terminal
Solderless
screw
terminal
6.2 mm or less
3.2
6.2 mm or less
Terminal
<Reference>
Terminal
Applicable
Pressure
Type No.
Certification
manufacturer
cable
bonding tool
FV1.25-B3A
AWG22 to 16
J.S.T. Mfg.
YA-1 (J.S.T.
UL Listed
Co., Ltd.
Mfg. Co., Ltd.)
FV2-MS3
AWG16 to 14
When two wires are connected to one terminal
*1
3.2
Terminal
Solderless
screw
terminal
6.2 mm or less
6.3 mm or more
3.2
6.2 mm or less
Terminal
6.3 mm or more
<Reference>
Terminal
Applicable
Pressure
Type No.
Certification
manufacturer
cable
bonding tool
J.S.T. Mfg.
YA-1 (J.S.T.
FV1.25-B3A
AWG22 to 16
UL Listed
Co., Ltd.
Mfg. Co., Ltd.)
*1 To adapt the
LVD directive (EN61010-2-201:2013) of
directive, avoid the wiring with two wires to the built-in terminal, and take
an appropriate action such as adding an external terminal.
For the time of compliance with the LVD directive (EN61010-2-201:2013),
refer to MELSEC iQ-F FX5U User's Manual (Hardware).
3.1.2
European type terminal block
1) Wire size
Wire size
No. of wire
per terminal
Solid wire/Stranded wire Ferrules with insulating sleeve
1
AWG24 to 20
AWG24 to 20
2
AWG24
2) Treatment of wire ends
Strip the coating of strand wire and twist the cable core before connecting
it, or strip the coating of single wire before connecting it. An alternative
connection is to use a ferrule with insulating sleeve.
Insulating sleeve
Contact area
(Crimp area)
6 mm
5 mm
10.5 to 12 mm
2 to 2.5 mm
Manufacturer
Model
Caulking tool
Phoenix Contact GmbH & Co. KG
AI 0.5-6WH
CRIMPFOX 6
When using a wire ferrule with an insulating sleeve, choose a wire with
proper cable sheath referring to the above outside dimensions, otherwise
the wire cannot be inserted easily.
Tighten the screws to a torque of 0.22 to 0.25 Nm.
2
Do not tighten terminal screws exceeding with a torque outside the above-
or thicker.
mentioned range.
Failure to do so may cause equipment failures or malfunctions.
3) Tool
For tightening the terminal, use a
commercially available small
screwdriver having a straight
form that is not widened toward
the end as shown right.
0.4 mm
Note:
If the diameter of screwdriver grip is too small, tightening torque may not be
achieved. To achieve the appropriate tightening torque shown in the table
above, use the following screwdriver or appropriate replacement (grip
diameter: approximately 25 mm).
Manufacturer
Phoenix Contact GmbH & Co. KG
3.2 Power supply specifications and external wiring
3.2.1
Power supply specifications [CPU module, FX5-32E
Item
AC power type
Rated voltage
100 to 240 V AC
Voltage fluctuation range
-15%, +10%
Frequency rating
50/60 Hz
Operation can be
continued upon
Allowable instantaneous
occurrence of
power failure time
instantaneous power
failure for 10 ms or less.
FX5U-32M,
250 V 3.15 A Time-lag Fuse
FX5-32E
Power fuse
FX5U-64M,
250 V 5 A Time-lag Fuse
FX5U-80M
25 A max. 5 ms or less/100 V AC
FX5U-32M
50 A max. 5 ms or less/200 V AC
FX5U-64M,
30 A max. 5 ms or less/100 V AC
Rush current
FX5U-80M
60 A max. 5 ms or less/200 V AC
30 A max. 5 ms or less/100 V AC
FX5-32E
65 A max. 5 ms or less/200 V AC
FX5U-32M
30 W
FX5U-64M
40 W
Power
*2
consumption
FX5U-80M
45 W
FX5-32E
25 W
400 mA (480 mA)
FX5U-32M
[300 mA (380 mA)]
600 mA (740 mA)
24 V DC power
FX5U-64M
the
EC
supply
[300 mA (440 mA)]
*3
capacity
600 mA (770 mA)
FX5U-80M
[300 mA (470 mA)]
FX5-32E
250 mA (310 mA)
FX5U-32M
900 mA
5 V DC built-in
FX5U-64M,
power supply
1100 mA
FX5U-80M
*7
capacity
FX5-32E
965 mA
*1 When the supply voltage is 200 V AC, the time can be change to 10 to
100 ms by editing the user program.
*2 This item shows value when all 24 V DC power supplies are used in the
maximum configuration connectable to the CPU module. (The current of
the input circuit is included.)
*3 The AC power type has 24 V DC service power supply, and the DC
power type has 24 V DC built-in power supply. When I/O modules are
connected, they consume current from the power supply.
*4 Capacity of 24 V DC service power supply when service power supply is
used for the input circuit. The value in () is capacity of 24 V DC service
power supply when external power supply is used for the input circuit.
*5 The value in [] is capacity of 24 V DC power supply in the case where
operating ambient temperature is lower than 0.
*6 The value in () is capacity of power supply when the supply voltage is
16.8-19.2 V DC.
*7 Power is supplied to I/O modules, intelligent function modules, expansion
adapters and expansion boards.
The following manual shows further information.
Refer to MELSEC iQ-F FX5U User's Manual (Hardware).
3.2.2
Example of external wiring [AC power type]
100 to 240 V AC power is supplied to the CPU module and FX5-32E. For the
details of wiring work, refer to Section 3.1.
With
straight tip
2.5 mm
[1]
Model names
L
SZS 0.4×2.5
N
]
Specification
DC power type
* Class D grounding
24 V DC
See section 3.3 for
-30%, +20%
details.
Operation can be
continued upon
occurrence of
instantaneous power
[1]: CPU module, FX5-32E
*1
failure for 5 ms or less.
3.2.3
Example of external wiring [DC power type]
24 V DC power is supplied to the CPU module and FX5-32E. For the details
of wiring work, refer to Section 3.1.
50 A max. 0.5 ms or
less/24 V DC
65 A max. 2.0 ms or
less/24 V DC
50 A max. 0.5 ms or
less/24 V DC
[1]
30 W
40 W
45 W
25 W
*4
* Class D grounding
*6
480 mA (360 mA
)
*4*5
See section 3.3 for details.
*4
*6
740 mA (530 mA
)
[1]: CPU module, FX5-32E
*4*5
3.3 Grounding
*4
Ground the PLC as stated below.
*6
770 mA (560 mA
)
*4*5
Perform class D grounding. (Grounding resistance: 100 or less)
Ground the PLC independently if possible.
*4
310 mA
If it cannot be grounded independently, ground it jointly as shown below.
*6
900 mA (775 mA
)
Other
PLC
equipment
*6
1100 mA (975 mA
)
Independent grounding
(Best condition)
Use ground wires thicker than AWG14 (2 mm
Bring the grounding point close to the PLC as much as possible so that the
ground cable can be shortened.
3.4 Input specifications and external wiring
3.4.1
Input specifications (24 V DC input type)
Item
Input signal voltage
X0 to X17
CPU
Input
X20 and
module
impedance
subsequent
FX5 I/O module
Input signal
current
100 to 240 V AC
ON input
sensitivity
current
Breaker
Power on
OFF input sensitivity current
Emer-
gency
Input response time
PL
MC
MC
Input signal form
Fuse
(Input sensor form)
*
Input operation display
MC
MC
3.4.2
DC
power
supply
DC
AC
Power supply for loads connected
to CPU module output terminals
24 V DC
Circuit protector
Power on
Emer-
gency
PL
MC
MC
Fuse
*
3.4.3
MC
MC
Power supply for loads connected
to CPU module output terminals
Other
Other
PLC
PLC
equipment
equipment
Shared grounding
Common grounding
(Good condition)
(Not allowed)
2
).
Specification
3.5 Relay output specifications and external wiring
24 V DC 20%, -15%
3.5.1
4.3 k
5.6 k
External power supply
5.6 k
Item
Specification
X0 to X17
5.3 mA/24 V DC
CPU
X20 and
module
4.0 mA/24 V DC
subsequent
FX5 I/O module
4.0 mA/24 V DC
X0 to X17
3.5 mA or more
CPU
X20 and
module
3.0 mA or more
subsequent
FX5 I/O module
3.0 mA or more
1.5 mA or less
Refer to MELSEC iQ-F FX5U
User's Manual (Hardware)
No-voltage contact input NPN
Sink input
open collector transistor
No-voltage contact input PNP
Source input
open collector transistor
LED on panel turns on when input.
Examples of input wiring [AC power type] (when 24 V DC
service power supply is used)
1. Sink input type
2. Source input type
[1]
[1]
Fuse
Fuse
L
L
*
*
N
N
100 to 240 V AC
100 to 240 V AC
S/S
S/S
0V
0V
24V
24V
X0
X0
X1
X1
3-wire type
3-wire type
X2
X2
sensor
sensor
X3
X3
[2]
[2]
S/S
S/S
X0
X0
* Class D grounding
See section 3.3 for details.
[1]: CPU module, FX5-32E
[2]: Input module
Examples of input wiring [DC power type]
1. Sink input type
2. Source input type
[1]
[1]
Fuse
Fuse
*
*
24 V DC
24 V DC
S/S
S/S
X0
X0
X1
X1
3-wire type
3-wire type
X2
X2
sensor
X3
X3
sensor
[2]
[2]
S/S
S/S
X0
X0
* Class D grounding
See section 3.3 for details.
[1]: CPU module, FX5-32E
[2]: Input module
Relay output specifications
Item
Specification
30 V DC or less
240 V AC or less ("250 V AC or less" if not a
CE, UL, cUL compliant item)
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