Mitsubishi Electric MELSEC iQ-F FX5U User Manual page 2

Left side Right side
[1]
No. Name
[1] Expansion adapter connector cover
*1
[2]
Genuine product certification label
[3] *1
Nameplate
[4] DIN rail mounting groove
*1 Products that do not have the genuine product certification label or
nameplate are not covered by the warranty.
1.2 External dimensions and weight
2-4.5-diam mounting holes (FX5U-32M)
4-4.5-diam mounting holes (FX5U-64M, FX5U-80M)
FX5U-32M do not have the (*)-marked mounting holes.
Unit: mm (inches)
*
*
22 W1
8 (0.32")
Mounting
(0.87")
hole
83 (3.27")
W
pitches
W: W1:mm (inches) MASS (Weight):
Model name
mm (inches) Mounting hole pitches kg (lbs.)
Approx. 0.65
FX5U-32M 150 (5.91") 123 (4.85")
(1.43 lbs)
Approx. 1.0
FX5U-64M 220 (8.67") 193 (7.60")
(2.20 lbs)
Approx. 1.2
FX5U-80M 285 (11.23") 258 (10.16")
(2.64 lbs)
Outer paint color Body: Munsell 0.6B7.6/0.2
2. Installation (general specifications)
As for installation of the I/O modules, expansion adapters and expansion
boards, refer to MELSEC iQ-F FX5U User's Manual (Hardware).
INSTALLATION
PRECAUTIONS
 Use the product within the generic environment specifications described in
section 2.1 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 2
flammable gas, vibration or impacts, or expose it 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.
INSTALLATION
PRECAUTIONS
 Do not touch the conductive parts of the product directly. Doing so may
cause device failures or malfunctions.
 When drilling screw holes or wiring, make sure that cutting and wiring
debris do not enter the ventilation slits of the PLC.
Failure to do so may cause fire, equipment failures or malfunctions.
 For product supplied together with a dust proof sheet, the sheet should be
affixed to the ventilation slits before installation and wiring work to block
foreign objects such as cutting and wiring debris. However, when the
installation work is completed, make sure to remove the sheet to provide
adequate ventilation.
Failure to do so may cause fire, equipment failures or malfunctions.
INSTALLATION
PRECAUTIONS
 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.
 Install the product securely using a DIN rail or mounting screws.
 Connect the extension cables, peripheral device cables, input/output cables
[2]
and battery connecting cable securely to their designated connectors.
Loose connections may cause malfunctions.
[3]
 Turn off the power to the PLC before attaching or detaching the following devices.
Failure to do so may cause equipment failures or malfunctions.
- Peripheral devices, expansion board, and expansion adapter
[4]
- Extension modules, bus conversion module, and battery
2.1 Generic specifications
Item Specification
Operating ambient
0 to 55  (32 to 131 ) *2
*1
temperature
Storage ambient
-25 to 75  (-13 to 167 )
temperature
Operating
5 to 95%RH, non-condensing
ambient humidity
Storage ambient
5 to 95%RH, non-condensing
humidity
Frequency Acceleration
(Hz) (m/s

5 to 8.4
Vibration Installed
on DIN rail
*3*4
8.4 to 150 4.9
resistance
5 to 8.4 
Installed
directly
8.4 to 150 9.8
2
147 m/s Acceleration, Action time: 11 ms,
*3
Shock resistance
3 times by half-sine pulse in each direction X, Y, and Z
By noise simulator of 1000 Vp-p noise voltage, 1 μs noise
Noise durability
width and 30 to 100 Hz noise frequency
Dielectric
1.5 kV AC for 1 minute or 500
*5 V AC for 1 minute
withstand voltage
Insulation
10 M or higher by 500 VDC
*5
insulation resistance tester
resistance
Class D grounding (Grounding resistance: 100  or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>
Working atmosphere Free from corrosive or flammable gas and excessive conductive dusts
*7 0 to 2000 m
Operating altitude
Installation location Inside a control panel
*8 II or less
Overvoltage category
*9 2 or less
Pollution degree
Equipment class Class 2
*1 The simultaneous ON ratio of available PLC inputs or outputs changes
with respect to the ambient temperature, refer to MELSEC iQ-F FX5U
User's Manual (Hardware).
*2 For intelligent function modules, refer to the manual for each product.
*3 The criterion is shown in IEC61131-2.
*4 When the system has equipment which specification values are lower
than above mentioned vibration resistance specification values, the
vibration resistance specification of the whole system is corresponding to
or NO ),
2
the lower specification.
*5 Dielectric withstand voltage and insulation resistance are shown in the
following table.
Terminal
 CPU modules, I/O modules
Between power supply terminal 1.5 kV AC for
(AC power) and ground terminal
Between 24 V DC service power supply
500 V AC for
connected to input terminal (24 V DC) and
ground terminal
Between output terminal (relay) and 1.5 kV AC for
ground terminal
Between output terminal (transistor) and 500 V AC for
ground terminal
Terminal
 Expansion boards, expansion adapters, intelligent function module
Between terminal of expansion board and
ground terminal
Between terminal of expansion adapter
and ground terminal
Intelligent function module
For dielectric withstand voltage test and insulation resistance test of each
product, refer to the following manual.
Refer to MELSEC iQ-F FX5U User's Manual (Hardware).
*6 For grounding, refer to Section 3.3.
*7 The PLC cannot be used at a pressure higher than the atmospheric
pressure to avoid damage.
*8 This indicates the section of the power supply to which the equipment is
assumed to be connected between the public electrical power distribution
network and the machinery within premises. Category II applies to
equipment for which electrical power is supplied from fixed facilities. The
surge voltage withstand level for up to the rated voltage of 300 V is 2500 V.
*9 This index indicates the degree to which conductive material is generated
in the environment in which the equipment is used. Pollution level 2 is
when only non-conductive pollution occurs. Temporary conductivity
caused by condensation must be expected occasionally.
2.2 Installation location
Half amplitude
Sweep count
2 Install the PLC in an environment conforming to the generic specifications
) (mm)
(Section 2.1), installation precautions and notes.
1.75
10 times each
Installation location in enclosure
in X, Y, Z

directions
3.5
(80 min in
each direction)

Between each terminal
and ground terminal
Space in enclosure
Extension devices can be connected on the left and right sides of the CPU
*6
module.
If you intend to add extension devices in the future, keep necessary spaces on
the left and right sides.
A
FX5U
CPU module
2.2.1 Affixing the dust proof sheet
The dust proof sheet should be affixed to the ventilation port before beginning
the installation and wiring work.
For the affixing procedure, refer to the instructions
Be sure to remove the dust proof sheet when the installation and wiring work is
completed.
Dielectric Insulation
2.3 Procedures for installing to and detaching from DIN rail
strength resistance
The products can be installed on a DIN46277 rail [35 mm (1.38") wide]. This
section explains the installations of the CPU modules.
2.3.1 Installation
10 M or higher
1 minute
1) Connect the expansion boards and expansion adapters to the CPU module.
by 500 VDC
2) Push out all DIN rail mounting hooks (below fig. A)
insulation
resistance tester
1 minute
10 M or higher
1 minute
by 500 VDC
insulation
resistance tester
1 minute
2
A
3) Fit the upper edge of the DIN rail
Dielectric Insulation
strength resistance
Not allowed Not allowed
10 M or higher by
500 V AC for
500 VDC insulation
4) Lock the DIN rail mounting hooks (below fig. C) while pressing the PLC
1 minute
resistance tester
Each manual
2.4 Procedures for installing directly (with M4 screws)
The product can be installed directly on the panel (with screws).
This section explains the installation of the CPU modules.
2.4.1
Refer to the External Dimensions (Section 1.2) for the product's mounting hole
pitch information.
2.4.2
The FX5U-32M is used as the CPU
module in this example.
1) Make
2) Fit the CPU module (right fig. A)
3. Specifications and examples of external wiring
As for the details of the power supply wiring and input/output wiring, refer to
MELSEC iQ-F FX5U User's Manual (Hardware).
DESIGN PRECAUTIONS
 Make sure to set up the following safety circuits outside the PLC to ensure
A
A
A
A 50mm
on the dust proof sheet.
 Construct an interlock circuit in the program so that the whole system always
2 2
DESIGN PRECAUTIONS
 Simultaneously turn on and off the power supplies of the CPU module and
2
A
mounting groove (right fig. B) onto
B
the DIN rail.
against the DIN rail.
C C
4 4
Mounting hole pitches
Installation
mounting holes in the
B
mounting surface referring to the
external dimensions diagram.
based on the holes, and secure it
with M4 screws (right fig. B). (In the
case of FX5U-64M/80M, there
are four screw holes.)
A
B
safe system operation even during external power supply problems or
PLC failure.
Otherwise, malfunctions may cause serious accidents.
- Most importantly, set up the following: an emergency stop circuit, a
protection circuit, an interlock circuit for opposite movements (such as
forward vs. reverse rotation), and an interlock circuit to prevent
damage to the equipment at the upper and lower positioning limits.
- Note that when the CPU module detects an error, such as a watchdog
timer error, during self-diagnosis, all outputs are turned off. Also, when
an error that cannot be detected by the CPU module occurs in an input/
output control block, output control may be disabled.
External circuits and mechanisms should be designed to ensure safe
machine operation in such a case.
- Note that the output current of the 24V DC service power supply varies
depending on the model and the absence/presence of extension
modules. If an overload occurs, the voltage automatically drops, inputs
in the PLC are disabled, and all outputs are turned off.
External circuits and mechanisms should be designed to ensure safe
machine operation in such a case.
- Note that when an error occurs in a relay or transistor of an output
circuit, the output might stay on or off.
For output signals that may lead to serious accidents, external circuits
and mechanisms should be designed to ensure safe machine operation.
operates on the safe side before executing control (for data change) of the PLC
in operation. Read the manual thoroughly and sufficiently ensure complete
safety before executing other controls (for program change, parameter change,
forced output and operation status change) of the PLC in operation.
Otherwise, improper operation may damage machines or cause accidents.
extension modules.