Mitsubishi FX3U User Manual

JY997D18801K(ENGLISH)

FX3U SERIES PROGRAMMABLE

CONTROLLERS

HARDWARE MANUAL

Manual Number JY997D18801

Revision K

Date May 2011

This manual describes the part names, dimensions, mounting,
cabling and specifications for the product. This manual is extracted
from FX3U Series User's Manual - Hardware Edition. Refer to FX3U
Series User's Manual - Hardware Edition for more details. Before
use, read this manual and manuals of relevant products fully to
acquire proficiency in the handling and operating the product. Make
sure to learn all the product information, safety information, and
precautions.
And, store this manual in a safe place so that you can take it out and
read it whenever necessary. Always forward it to the end user.
Registration
The company name and the product name to be described in this
manual are the registered trademarks or trade marks of each
company.

Effective May 2011
Specifications are subject to change without notice.

© 2005 Mitsubishi Electric Corporation

Safety Precaution (Read these precautions before use.)

This manual classifies the safety precautions into two categories:

and .

Indicates that incorrect handling may cause
hazardous conditions, resulting in death or
severe injury.

Indicates that incorrect handling may cause
hazardous conditions, resulting in medium or
slight personal injury or physical damage.

Depending on the circumstances, procedures indicated by
may also cause severe injury.
It is important to follow all precautions for personal safety.

.

STARTUP AND
MAINTENANCE
PRECAUTIONS

• Do not touch any terminal while the PLC's power is on.
Doing so may cause electric shock or malfunctions.

• Before cleaning or retightening terminals externally cut off all
phases of the power supply.
Failure to do so may cause electric shock.

STARTUP AND
MAINTENANCE
PRECAUTIONS

• Use the battery for memory backup correctly in FX3U Series
User's Manual - Hardware Edition.

- Use the battery only for the specified purpose.

- Connect the battery correctly.

- Do not charge, disassemble, heat, put in fire, short-circuit,

connect reversely, weld, swallow or burn the battery, or apply
excessive forces (vibration, impact, drop, etc.) to the battery.

- Do not store or use the battery at high temperatures or

expose to direct sunlight.

- Do not expose to water, bring near fire or touch liquid

leakage or other contents directly.

- Incorrect handling of the battery may cause heat excessive

generation, bursting, ignition, liquid leakage or deformation,
and lead to injury, fire or failures and malfunctions of facilities
and other equipment.

• Before modifying or disrupting the program in operation or
running the PLC, carefully read through this manual and the
associated manuals and ensure the safety of the operation.
An operation error may damage the machinery or cause accidents.

STARTUP AND
MAINTENANCE
PRECAUTIONS

• Turn off the power to the PLC before attaching or detaching the
memory cassette. If the memory cassette is attached or
detached while the PLC's power is on, the data in the memory
may be destroyed, or the memory cassette may be damaged.

• Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric distributor.

•

Turn off the power to the PLC before connecting or disconnecting
any extension cable.
Failure to do so may cause equipment failures or malfunctions.

• Turn off the power to the PLC before attaching or detaching the
following devices.
Failure to do so may cause equipment failures or malfunctions.

- Display module, peripheral devices, expansion boards, and

special adapters

- Connector conversion adapter, extension blocks, and FX

Series terminal blocks

- Battery and memory cassette

DISPOSAL
PRECAUTIONS

• Please contact a certified electronic waste disposal company
for the environmentally safe recycling and disposal of your
device.
When disposing of batteries, separate them from other waste
according to local regulations.
(For details of the Battery Directive in EU countries, refer to
FX3U Series User's Manual - Hardware Edition.)

TRANSPORTATION
AND STORAGE
PRECAUTIONS

• Before transporting the PLC, turn on the power to the PLC to
check that the BATT LED is off.
If the PLC is transported with the BATT LED on or the battery
exhausted, the battery-backed data may be unstable during
transportation.

TRANSPORTATION
AND STORAGE
PRECAUTIONS

• The PLC is a precision instrument. During transportation, avoid
impacts larger than those specified in Section 2.1. Failure to do
so may cause failures in the PLC.
After transportation, verify the operations of the PLC.

• When transporting lithium batteries, follow required
transportation regulations.
(For details of the regulated products, refer to FX3U Series
User's Manual - Hardware Edition.)

Marine standard

Please consult with Mitsubishi Electric for the information on marine
standard practices and the corresponding types of equipment.

Certification of UL, cUL standards

FX3U series main units, FX3U series special adapters and FX2N series
input/output extension units/blocks supporting UL, cUL standards
are as follows:

UL, cUL file number :E95239
Models : MELSEC FX3U series manufactured

Models : MELSEC FX2N series manufactured

FX3U-MR/ES(-A) FX3U-MT/ES(-A)
FX3U-MT/ESS
Where  indicates:16,32,48,64,80,128
FX3U-MR/DS FX3U-MT/DS
FX3U-MT/DSS
Where  indicates:16,32,48,64,80
FX3U-MR/UA1 FX3U-MS/ES
Where  indicates:32,64
FX3U-232ADP(-MB) FX3U-485ADP(-MB)
FX3U-4AD-ADP FX3U-4DA-ADP
FX3U-3A-ADP FX3U-4AD-PT-ADP
FX3U-4AD-PTW-ADP FX3U-4AD-PNK-ADP
FX3U-4AD-TC-ADP

FX3U-4HSX-ADP FX3U-2HSY-ADP
FX3U-CF-ADP

FX2N-ER-ES/UL FX2N-ET-ESS/UL
Where  indicates:32,48
FX2N-48ER-DS FX2N-48ET-DSS
FX2N-48ER-UA1/UL
FX2N-8ER-ES/UL FX2N-8EX-ES/UL
FX2N-8EYR-ES/UL FX2N-8EYR-S-ES/UL
FX2N-8EYT-ESS/UL FX2N-8EX-UA1/UL
FX2N-16EX-ES/UL FX2N-16EYR-ES/UL
FX2N-16EYT-ESS/UL FX2N-16EYS

Compliance with EC directive(CE Marking )

This document does not guarantee that a mechanical system
including this product will comply with the following standards.
Compliance to EMC directive and LVD directive of the entire
mechanical system should be checked by the user / manufacturer.
For more details please contact the local Mitsubishi Electric sales
site.

Requirement for Compliance with EMC directive

The following products have shown compliance through direct
testing (of the identified standards below) and design analysis
(through the creation of a technical construction file) to the European
Directive for Electromagnetic Compatibility (2004/108/EC) when
used as directed by the appropriate documentation.

Attention

• This product is designed for use in industrial applications.

Note

• Manufactured by:
Mitsubishi Electric Corporation
2-7-3 Marunouchi, Chiyoda- ku, Tokyo, 100-8310 Japan

• Manufactured at:
Mitsubishi Electric Corporation Himeji Works
840 Chiyoda-machi, Himeji, Hyogo, 670-8677 Japan

• Authorized Representative in the European Community:
Mitsubishi Electric Europe B.V.
Gothaer Str. 8, 40880 Ratingen, Germany.

Type : Programmable Controller (Open Type Equipment)
Models : MELSEC FX3U series manufactured

from May 1st, 2005 FX3U-MR/ES(-A)

from June 1st, 2005 FX3U-232ADP FX3U-485ADP

from November 1st, 2005 FX3U-MT/ES(-A)

from February 1st, 2006 FX3U-128MR/ES(-A) FX3U-128MT/ES(-A)

from April 1st, 2007 FX3U-232ADP-MB FX3U-485ADP-MB
from December 1st, 2007 FX3U-4AD-PTW-ADP

from June 1st, 2009 FX3U-3A-ADP FX3U-CF-ADP
from August 1st, 2010 FX3U-8AV-BD
from September 1st, 2010

from May 1st, 2011

Standard Remark

EN61131-2:2007

Programmable controllers

-Equipment
requirements and tests

Models : MELSEC FX2N series manufactured

from July 1st, 1997 FX2N-ER-ES/UL FX2N-ET-ESS/UL

from April 1st, 1998 FX
from August 1st, 1998 FX2N-48ER-UA1/UL
from August 1st, 2005 FX

from September 1st, 2010
For the products above, PLCs manufactured

before March 31st, 2002 are compliant with EN50081-2 (EN61000­6-4) and EN50082-2
from April 1st, 2002 to April 30th, 2006 are compliant with EN50081­2 (EN61000-6-4) and EN61131-2:1994+A11:1996+A12:2000
after May 1st, 2006 are compliant with EN61131-2:2007

Where  indicates:16,32,48,64,80
FX3U-4HSX-ADP FX3U-2HSY-ADP
FX3U-FLROM-16 FX3U-FLROM-64L
FX3U-7DM

FX3U-4AD-ADP FX3U-4DA-ADP
FX3U-4AD-PT-ADP FX3U-4AD-TC-ADP
FX3U-232-BD FX3U-422-BD
FX3U-485-BD FX3U-USB-BD
FX3U-FLROM-64 FX3U-CNV-BD

FX3U-MT/ESS
Where  indicates:16,32,48,64,80

FX3U-128MT/ESS
FX3U-MR/DS FX3U-MT/DS
FX3U-MT/DSS
Where  indicates:16,32,48,64,80

FX3U-4AD-PNK-ADP

FX3U-MR/UA1 FX3U-MS/ES
Where  indicates:32,64
FX3U-FLROM-1M

Compliance with all relevant aspects
of the standard.
EMI

• Radiated Emission

• Conducted Emission

EMS

• Radiated electromagnetic field

• Fast Transient burst

• Electrostatic discharge

• High-energy surge

• Voltage drops and interruptions

• Conducted RF

• Power frequency magnetic field

Where  indicates:32,48
FX2N-16EX-ES/UL FX2N-16EYR-ES/UL
FX2N-16EYT-ESS/UL

2N-48ER-DS FX2N-48ET-DSS

2N-8ER-ES/UL FX2N-8EX-ES/UL

FX2N-8EYR-ES/UL FX2N-8EYT-ESS/UL
FX2N-8EYR-S-ES/UL

Standard Remark

EN61000-6-4:2007

- Generic emission
standard

Industrial environment

EN50081-2:1993

Electromagnetic
compatibility

EN50082-2:1995

Electromagnetic
compatibility

- Generic immunity
standard

Industrial environment

EN61131-2:1994
/A11:1996
/A12:2000

Programmable controllers

-Equipment
requirements and tests

EN61131-2:2007

Programmable controllers

-Equipment
requirements and tests

Compliance with all relevant aspects
of the standard.

• Emission-Enclosure port

• Emission-Low voltage AC mains

port

• Emission-Telecommunications/
network port

Compliance with all relevant aspects
of the standard.

• RF immunity

• Fast Transients

• ESD

• Conducted

• Power magnetic fields

Compliance with all relevant aspects
of the standard.

• Radiated electromagnetic field

• Fast transient burst

• Electrostatic discharge

• Damped oscillatory wave

Compliance with all relevant aspects
of the standard.
EMI

• Radiated Emission

• Conducted Emission

EMS

• Radiated electromagnetic field

• Fast Transient burst

• Electrostatic discharge

• High-energy surge

• Voltage drops and interruptions

• Conducted RF

• Power frequency magnetic field

Requirement for Compliance with LVD directive

The following products have shown compliance through direct
testing (of the identified standards below) and design analysis
(through the creation of a technical construction file) to the European
Directive for Low Voltage (2006/95/EC) when used as directed by
the appropriate documentation.

Type : Programmable Controller (Open Type Equipment)
Models : MELSEC FX3U series manufactured

from May 1st, 2005 FX3U-MR/ES(-A)

from November 1st, 2005 FX3U-MT/ES(-A)

from February 1st, 2006 FX3U-128MR/ES(-A)

from September 1st, 2010

Standard Remark

EN61131-2:2007

Programmable controllers

-Equipment
requirements and tests

Where  indicates:16,32,48,64,80

FX3U-MT/ESS
Where  indicates:16,32,48,64,80

FX3U-128MT/ES(-A)
FX3U-128MT/ESS
FX3U-MR/DS
Where  indicates:16,32,48,64,80
FX3U-MR/UA1
FX3U-MS/ES
Where  indicates:32,64

The equipment has been assessed
as a component for fitting in a
suitable enclosure which meets the
requirements of EN61131-2:2007

Models :MELSEC FX2N series manufactured

from July 1st, 1997 FX2N-ER-ES/UL FX2N-ET-ESS/UL

from April 1st, 1998 FX2N-48ER-DS
from August 1st, 1998 FX2N-48ER-UA1/UL
from August 1st, 2005 FX2N-8ER-ES/UL FX2N-8EYR-ES/UL
from September 1st, 2010

For the products above, PLCs manufactured
before March 31st, 2002 are compliant with IEC1010-1
from April 1st, 2002 to April 30th, 2006 are compliant with EN61131­2:1994+A11:1996+A12:2000
after May 1st, 2006 are compliant with EN61131-2:2007

Where  indicates:32,48
FX2N-16EYR-ES/UL

FX2N-8EYR-S-ES/UL

Standard Remark

IEC1010-1:1990
/A1:1992

Safety requirements for
electrical equipment for
measurement, control, and
laboratory use

- General requirements

EN61131-2:1994 :2007
/A12:2000
/A11:1996

Programmable controllers

- Equipment
requirements and tests

The equipment has been assessed
as a component for fitting in a
suitable enclosure which meets the
requirements of IEC 1010-1:
1990+A1:1992

The equipment has been assessed
as a component for fitting in a
suitable enclosure which meets the
requirements of EN61131-2:
1994+A11:1996+A12:2000, :2007

Caution for compliance with EC Directive

Installation in Enclosure

Programmable logic controllers are open-type devices that must be
installed and used within conductive control boxes. Please use the
FX3U Series programmable logic controllers while installed in
conductive shielded control boxes. Please secure the control box lid
to the control box (for conduction). Installation within a control box
greatly affects the safety of the system and aids in shielding noise
from the programmable logic controller.

Caution for Analog Products in use

The analog special adapters have been found to be compliant to the
European standards in the aforesaid manual and directive. However,
for the very best performance from what are in fact delicate
measuring and controlled output device Mitsubishi Electric would like
to make the following points;
As analog devices are sensitive by nature, their use should be
considered carefully. For users of proprietary cables (integral with
sensors or actuators), these users should follow those
manufacturers installation requirements.
Mitsubishi Electric recommend that shielded cables should be used.
If NO other EMC protection is provided, then users may experience
temporary induced errors not exceeding +10%/-10% in very heavy
industrial areas.
However, Mitsubishi Electric suggest that if adequate EMC
precautions are followed with general good EMC practice for the
users complete control system, users should expect normal errors
as specified in this manual.

- Sensitive analog cable should not be laid in the same trunking
or cable conduit as high voltage cabling. Where possible users
should run analog cables separately.

- Good cable shielding should be used. When terminating the
shield at Earth - ensure that no earth loops are accidentally
created.

- When reading analog values, EMC induced errors can be
smoothed out by averagin g the readings. This can be achieved
either through functions on the analog special adapter/block or
through a users program in the FX3U Series PLC main unit.

Associated manuals

FX3U Series PLC (main unit) comes with this document (hardware
manual).
For a detailed explanation of the FX3U Series hardware and
information on instructions for PLC programming and special
extension unit/block, refer to the relevant documents.

Manual name Manual No. Description

FX3U Series
User's Manual

- Hardware
Edition

FX3G/FX3U/
FX3UC Series
Programming
Manual

- Basic & Applied
Instruction Edition

MELSEC-Q/L/F
Structured
Programming
Manual
(Fundamentals)

FXCPU
Structured
Programming
Manual
[Device & Common]

FXCPU
Structured
Programming
Manual
[Basic & Applied
Instruction]

FXCPU
Structured
Programming
Manual
[Application
Functions]

FX Series User’s
Manual - Data
Communication
Edition

FX3G/FX3U/
FX3UC Series
User's Manual

- Analog Control
Edition

FX3G/FX3U/

3UC Series

FX
User's Manual

- Positioning
Control Edition

How to obtain manuals

For the necessary product manuals or documents, consult with the
Mitsubishi Electric dealer from where you purchase your product.

JY997D16501

MODEL CODE:

09R516

JY997D16601

MODEL CODE:

09R517

SH-080782

MODEL CODE:

13JW06

JY997D26001

MODEL CODE:

09R925

JY997D34701

MODEL CODE:

09R926

JY997D34801

MODEL CODE:

09R927

JY997D16901

MODEL CODE:

09R715

JY997D16701

MODEL CODE:

09R619

JY997D16801

MODEL CODE:

09R620

Explains FX3U Series PLC
specification details for I/O,
wiring, installation, and
maintenance.

Describes PLC
programming for basic/
applied instructions STL/
SFC programming and
devices.

Programming methods,
specifications, functions,
etc. required to create
structured programs.

Devices, parameters, etc.
provided in structured
projects of GX Works2.

Sequence instructions
provided in structured
projects of GX Works2.

Application functions
provided in structured
projects of GX Works2.

Explains N:N link, parallel
link, computer link, no
protocol communication by
RS instructions/FX2N-
232IF.

Describes specifications for
analog control and
programming methods for
FX3G/FX3U/FX3UC Series
PLC.

Explains the specifications
for positioning control of
FX

3G/FX3U/FX3UC Series

and programming
procedures

Incorporated Items

Check if the following product and items are included in the package:

Included Items

Main units

Product 1 unit

FX3U-16M to
FX3U-128M

Dust proof protection sheet 1 sheet

Manuals [Japanese version,
English version]

1 manual

each

Input/output extension units

FX2N-32E,
FX2N-48E

Product 1 unit

Extension cable 1 cable

Input/output number label 1 sheet

Input/output extension blocks

FX2N-8E,
FX2N-16E

Product 1 unit

Input/output number label 1 sheet

1. Outline

1.1 Part names

[1]
[2]
[3]

X40VS/S

X6 X10 X12 X14 X16 X20

X40VS/S

X6 X10 X12 X14 X16 X20

X5X0X1X2X3 X7

N24V

L X27X23 X25X15 X17 X21

X5X0X1X2X3 X7

N24V

L

[4]

[5]

[6]
[7]

FX3U-48MR/ES

FX3U-48MR/ES

FX3U-48MFX

3U

FX3U-48MFX

3U

Y4Y2Y0

Y4Y2Y0

COM1

COM2Y3Y1

COM1

COM2Y3Y1

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

Y7 Y11 Y13Y5

R

R

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

[8]

X24 X26X22

X24 X26X22

X13

X13
X11

X11

0312

645217

20 2422 23 2625

0312

645217

20 2422 23 2625

IN

IN

10 11 1312 1614 15 17

10 11 1312 1614 15 17

POWER

POWER

RUN

RUN

BATT

BATT

ERROR

ERROR

0312 645217

20 2422 23 2625

OUT

OUT

10 11 1312 1614 15 17
0312 645217

20 2422 23 2625

10 11 1312 1614 15 17

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y24Y6

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y24Y6

No. Name

[1] Top cover

[2] Battery cover

[3] Special adapter connecting hooks (2 places)

[4] Expansion board dummy cover

[5] RUN/STOP switch

[6] Peripheral device connecting connector

[7] DIN rail mounting hooks

[8] Model name (abbreviation)

[9] Input display LEDs (Red)

[10] Terminal block covers

[11] Extension device connecting connector cover

Operation status display LEDs

POWER Green On while power is on the PLC.

RUN Green On while the PLC is running.

[12]

BATT Red Lights when the battery voltage drops.

ERROR

Red Flashing when a program error occurs.

Red Lights when a CPU error occurs.

[13] Output display LEDs (Red)

[9]
[10]

X27X23 X25X15 X17 X21

27

27

[11]

[12]

27

27

[13]

With terminal cover open

[2]
[3]

X40VS/S

L X27X23 X25X15 X17 X21

L

FX3U-48MFX

3U

FX3U-48MFX

3U

COM1

COM1

R

R

[1]

N 24V

N 24V

FX3U-48MR/ES

FX3U-48MR/ES

COM2Y3Y1

COM2Y3Y1

Y4Y2Y0

Y4Y2Y0

X6 X10 X12 X14 X16 X20

X40VS/S

X6 X10 X12 X14 X16 X20

X5X0X1X2X3 X7

X5X0X1X2X3 X7

OUT

OUT

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

X24 X26X22

X24 X26X22

X13

X13
X11

X11

0312

645217

20 2422 23 2625

0312

645217

20 2422 23 2625

IN

IN

10 11 1312 1614 15 17

10 11 1312 1614 15 17

POWER

POWER

RUN

RUN

BATT

BATT

ERROR

ERROR

0312 645217

20 2422 23 2625

0312 645217

20 2422 23 2625 27

10 11 1312 1614 15 17

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y24Y6

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y24Y6

X27X23 X25X15 X17 X21

[4]

27

27

27

[3]
[5]

No. Name

[1] Protective terminal covers (FX3U-M/-A is excluded)

[2] Power supply, Input (X) terminals

Terminal block mounting screws

[3]

(FX3U-16M terminal block cannot be installed/removed)

[4] Terminal names

[5] Output (Y) terminals

1.2 External dimensions and weight

2- 4.5-diam mounting holes (FX3U-16M , FX3U-32M )
4- 4.5-diam mounting holes (FX
FX3U-16M and FX3U-32M do not have the (*)-marked mounting holes.

N 24V

L X27X23 X25X15 X17 X21

N 24V

L

FX3U-48MR/ES

FX3U-48MFX

3U

FX3U-48MFX

3U

Y4Y2Y0

Y4Y2Y0

COM1

COM2Y3Y1

COM1

COM2Y3Y1

R

R

*

22

(0.87")

X40VS/S

X6 X10 X12 X14 X16 X20

X40VS/S

X6 X10 X12 X14 X16 X20

X5X0X1X2X3 X7

X13

X5X0X1X2X3 X7

X13
X11

X11

0312

0312

IN

IN

10 11 1312 1614 15 17

10 11 1312 1614 15 17

0312 645217

OUT

OUT

10 11 1312 1614 15 17
0312 645217

10 11 1312 1614 15 17

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

W1

W

3U

-48M , FX3U-64M ,FX3U-80M ,FX3U-128M )

2

*

*

X24 X26X22

X24 X26X22

X27X23 X25X15 X17 X21

645217

20 2422 23 2625

27

645217

20 2422 23 2625

27

POWER

POWER

RUN

RUN

BATT

BATT

ERROR

ERROR

20 2422 23 2625

27

20 2422 23 2625

27

Y24Y6

Y24Y6

*1 FX3U-32MR/UA1 uses 4-φ4.5 mounting holes.

*2 Except FX3U-32MR/UA1

Model name

W:

mm (inches)

mm (inches)

Direct mounting

hole pitches

FX3U-16M 130 (5.12”) 103 (4.06”) 0.6 (1.32lbs)

*3

FX3U-32M

150 (5.91”) 123 (4.85”) 0.65 (1.43lbs)

FX3U-48M 182 (7.17”) 155 (6.11”) 0.85 (1.87lbs)

*4

FX3U-64M

220 (8.67”) 193 (7.6”) 1.00 (2.2lbs)

FX3U-80M 285 (11.23”) 258 (10.16”) 1.20 (2.64lbs)

FX3U-128M

350 (13.78”) 323 (12.72”) 1.80 (3.96lbs)

*3 FX3U-32MR/UA1 is equivalent to FX3U-48M.

*4 FX3U-64MR/UA1 is equivalent to FX3U-80M.

Installation

•35-mm-wid e DIN rail or Direct (screw) mo unti ng (M 4)

1

*

Unit:mm(inches)

90(3.55")

80(3.15")

Mounting hole pitches

86(3.39")

W1:

9(0.36")

MASS
(Weight)
kg (lbs)

2. Installation (general specifications)

As for installation of the input/output extension units/blocks, special
adapters and expansion boards, refer to FX3U Series User's Manual

- Hardware Edition.

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, Cl2, H2S, SO2 or NO2),
flammable gas, vibration or impacts, or exposed 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.

•

Do not touch the conductive parts of the product directly to avoid
failure or malfunctions.

•

Install the product securely using a DIN rail or mounting screws.

• 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.

• When drilling screw holes or wiring, make sure cutting or wire
debris does 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.
Unsecured connection 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 modules, expansion boards and

special adapters

- Extension units/blocks and the FX Series terminal block

- Battery and memory cassette

INSTALLATION
PRECAUTIONS

:

• Connect the extension cables, peripheral device cables, input/
output cables and battery connecting cable securely to their
designated connectors.
Unsecured connection 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 modules, expansion boards and

special adapters

- Extension units/blocks and the FX Series terminal block

- Battery and memory cassette

WIRING
PRECAUTIONS

• Cut off all phases of the power supply externally before
installation or wiring work in order to avoid damage to the
product or electric shock.

2.1 Generic specifications

Item Specification

Ambient
temperature

Ambient
humidity

Vibration
resistance

Shock
resistance

Noise
resistance

Dielectric
withstand
voltage

Insulation
resistance

Grounding

Working
atmosphere

Working
altitude

*1 The criterion is shown in IEC61131-2.

*2 Dielectric withstand voltage and insulation resistance are

0 to 55°C (32 to 131°F) when operating and -25 to
75°C (-13 to 167°F) when stored

5 to 95%RH (no condensation) when operating

Accele-

Fre-

ration

quency

(Hz)

When

10 to 57 - 0.035

installed

*1

on DIN

57 to 150

rail

When

10 to 57 - 0.075

installed

57 to 150

directly

147 m/s2 Acceleration, Action time: 11ms, 3 times by

*1

half-sine pulse in each direction X, Y, and Z

By noise simulator at noise voltage of 1,000 Vp-p,
noise width of 1 µs, rise time of 1 ns and period of 30
to 100 Hz

1.5kV AC for one
minute

500V AC for one

*2

minute

5MΩ or more by

*2

500V DC megger

Class D grounding (grounding resistance: 100 Ω or
less) <Common grounding with a heavy electrical
system is not allowed.>

Free from corrosive or flammable gas and excessive
conductive dusts

*4

<2000m

amplitude

(m/s2)

4.9 -

9.8 -

Between each terminals and
ground terminal

*3

shown in the following table.

Half

(mm)

Sweep Count
for X, Y, Z: 10
times
(80 min in
each direction)

Terminal

Dielectric

strength

Insulation
resistance

Main units, Input/output extension units/blocks

Between power supply terminal
(AC power) and ground
terminal

Between power supply terminal
(DC power) and ground
terminal

Between 24V DC service power
supply connected to input
terminal (24V DC) and ground
terminal

Between input terminal (100V
AC) and ground terminal

Between output terminal (relay)
and ground terminal

Between output terminal
(transistor) and ground terminal

Between output terminal (triac)
and ground terminal

Expansion boards, Special adapters,
Special function units/blocks

Between terminal of expansion
board and ground terminal

Between terminal of special
adapter and ground terminal

1.5 kV AC for
one minute

500V AC for

one minute

500V AC for

one minute

1.5 kV AC for
one minute

1.5 kV AC for
one minute

500V AC for

one minute

1.5 kV AC for
one minute

5MΩ or more by
500V DC megger

Not allowed Not allowed

500V AC for

1min

5MΩ or more by
500V DC megger

Special function unit/block Each manual

For dielectric with stand voltage test and insulation resistance
test of each product, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

*3 For common grounding, refer to section 3.3.

*4 The PLC cannot be used at a pressure higher than the

atmospheric pressure to avoid damage.

Notes

• When a dust proof sheet is supplied with an extension unit/
block, keep the sheet applied to the ventilation slits during
installation and wiring work.

• To prevent temperature rise, do not install the PLC on a floor, a
ceiling or a vertical surface.
Install it horizontally on a wall as shown in section 2.2.

• Keep a space of 50 mm (1.97”) or more between the unit main
body and another device or structure (part A). Install the unit as
far away as possible from high-voltage lines, high-voltage
devices and power equipment.

2.2 Installation location

-48MR/ES

12

12

Y10

COM3

Y17

COM4

Y21

X13

X14

12

12

Y10

COM3

Y17

COM4

Y21

X13

X14

Install the PLC in an envi ronment conforming to the generic
specifications (section 2.1), installation precautions and notes.

For more details, refer to FX3U Series User's Manual - Hardware
Edition.

Installation location in enclosure

Space in enclosure

Extension devices can be connected on the left and right sides of the
main unit of the PLC.
If you intend to add extension devices in the future, keep necessary
spaces on the left and right sides.

Configuration without extension cable

A

FX

3U

A

Series

main

unit

A

≥

A

A

-16EX

-16EYT

2N

2N

FX

FX

-ES/UL

-ESS/UL

50mm (1.97")

Configuration in 2 stages with extension cable

A

A

Another

equipment

-CNV-BC

A

2N

FX

Another equipment

FX3U Series

main unit

-4AD-ADP

3U

FX

Input/output

powered

-16EX
extension

2N

FX

-ES/UL

A

A

unit

-16EX-ES/UL

-16EYT-ESS/UL

2N

2N

FX

FX

-10PG

-8AD

2N

2N

FX

FX

A

-4AD

-16EYR-ES/UL

2N

2N

FX

FX

Extension
cable

0N

·FX

0N

·FX

A

Another

equipment

≥

50mm (1.97")

A

-65EC

-30EC

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 on the

Be sure to remove the dust proof sheet when the installation and
wiring work is completed.

dust proof sheet.

2.3 Procedures for installing to and detaching from DIN rail

The products can be installed on a DIN46277 rail [35mm (1.38”)
wide]. This section explains the installations of the main units.
For the input/output extension units/blocks and special adapters,
refer to the following manual.

→ Refer to FX3U Series User’s Manual - Hardware Edition.

2.3.1 Installation

1) Connect the expansion boards and special adapters to the main

unit.

2) Push out all DIN rail mounting hooks (below fig.A)

C

2)

2)2)

A

3) Fit the up per edge of the DIN rail

mounting groove (right fig.C)
onto the DIN rail.

4) Lock the DIN rail mounting hooks (below fig.D) while pressing the

PLC against the DIN rail.

X40VS/S

X6 X10 X12 X14

X16 X20

X24 X26X22

X40VS/S

X6 X10 X12 X14

X16 X20

X24 X26X22

X24 X26X22

X40VS/S

X6 X10 X12 X14 X16 X20

X24 X26X22

X40VS/S

X6 X10 X12 X14 X16 X20

N 24V

L X27X23 X25X15 X17 X21

N 24V

L X27X23 X25X15 X17 X21

X5X0X1X2X3 X7

X13

X5X0X1X2X3 X7

X13

X27X23 X25X15 X17 X21

X5X0X1X2X3 X7

X13

N 24V

L X27X23 X25X15 X17 X21

X5X0X1X2X3 X7

X13

N 24V

L

X11

X11

X11

X11

0 31 2

64 5217

20 2422 23 2625

0 31 2

64 5217

20 2422 23 2625

0312

645217

20 2422 23 2625

27

0312

645217

20 2422 23 2625

27

27

27
IN

IN

IN

IN

1011 1312

1011 1312

1011 1312 1614 15 17

1011 1312 1614 15 17

1614 15 17

1614 15 17

POWER

POWER

POWER

POWER

RUN

RUN

RUN

RUN

BATT

BATT

BATT

BATT

ERROR

ERROR

ERROR

ERROR

0312 645217

20 2422 23 2625

27
OUT

OUT

OUT

OUT

1011 1312 1614 15 17
0 31 2 64 5217

20 2422 23 2625

0 31 2 64 5217

20 2422 23 2625

0312 645217

20 2422 23 2625

27

27

Y4Y2Y0

Y4Y2Y0

Y4Y2Y0

Y4Y2Y0

Y7 Y11 Y13Y5

Y7 Y11 Y13Y5

Y7 Y11 Y13Y5

Y7 Y11 Y13Y5

1011 1312

1011 1312

1011 1312 1614 15 17

Y12Y10

Y12Y10

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y15 Y17

COM4

Y15 Y17

COM4

COM3

COM3

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

D

1614 15 17

1614 15 17

Y16Y14 Y22Y20 Y26 COM5

Y16Y14 Y22Y20 Y26 COM5

Y23 Y25 Y27Y21

Y23 Y25 Y27Y21

27

Y24Y6

Y24Y6

Y24Y6

Y24Y6

4)

FX3U-48M

FX3U-48M

FX3U-48M

FX3U-48M

COM1

COM1

COM1

COM1

COM2Y3Y1

COM2Y3Y1

COM2Y3Y1

COM2Y3Y1

R

R

R

R

D

4)

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 main units.
As for the details of the installation/detaching for input extension

units/blocks and special adapters, refer to the following manual.

C

A

-48M

3U

FX

RUN

STOP

X40VS/S

X40VS/S

X5X0X1X2X3 X7

N24V

L X27X23 X25X15 X17 X21

X5X0X1X2X3 X7

N24V

L

FX3U-48M

FX3U-48M

Y4Y2Y0

Y4Y2Y0
COM1

COM1

COM2Y3Y1

COM2Y3Y1

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

Y7 Y11 Y13Y5

COM3 Y15 Y17COM4 Y23 Y25 Y27Y21

R

R

2)

1

0

IN

11

10

FX

3U

-48M

-48MR/ES

3U

FX

X6 X10 X12 X14 X16 X20

X6 X10 X12 X14 X16 X20

X13

X13
X11

X11

0312

645217

0312

645217
IN

IN

1011 1312 1614 15 17

1011 1312 1614 15 17

0312 645217
OUT

OUT

1011 1312 1614 15 17

0312 645217

1011 1312 1614 15 17

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

Y12Y10 Y16Y14 Y22Y20 Y26 COM5

27

26

25

24

23

22

21

20

7

6
5
4

3

2

17
16
15

14

13

12

POWER

RUN

BATT

ERROR

27

26

25

24

23
22
21

20
7

6

5

4
3
2

1

0

OUT

17

16

15

14

13
12

11

10

X24 X26X22

X24 X26X22

X27X23 X25X15 X17 X21

20 2422 23 2625

27

20 2422 23 2625

27

POWER

POWER

RUN

RUN

BATT

BATT

ERROR

ERROR

20

27

2223

24

2625

20 2422 23 2625

27

Y24Y6

Y24Y6

→ Refer to FX3U Series User's Manual - Hardware Edition.

2.4.1 Mounting hole pitches

Refer to the External Dimensions (section 1.2) for the product's
mounting hole pitch informatio n.
As for the details of the mounting hole pitches for extension unit/
block and special adapters, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

2.4.2 Installation

1) Make mounting holes in the
mounting surface referring to
the external dimensions
diagram.

2) Fit the main unit (A in the right
figure) based on the holes, and
secure it with M4 screws (B in
the right figure).
The mounting hole pitches and
number of screws depend on
the product. Refer to the
external dimensions diagram.

B

FX

FX

3U

3U

3U

3U

-48MFX

-48MFX

0

IN

1

2

10

3

11

4

12

5

13

6

14

7

15

20

16

21

17

22

23
24

25

26

OUT

0

POWER

27

POWER

1

2

10

3

11

RUN

4

12

RUN

5

13

6

14

BATT

7

15

BATT

20

16

21

ERROR

17

ERROR

22

23
24

2625

27

A

B

3. Power supply/input/output specifications

and examples of external wiring

As for the details of the power supply wiring and input/output wiring,
refer to FX3U Series User's Manual - Hardware Edition.

DESIGN
PRECAUTIONS

• Make sure to have the following safety circuits outside of the
PLC to ensure safe system operation even during external
power supply problems or PLC failure.
Otherwise, malfunctions may cause serious accidents.

1) Most importantly, have the following: an emergency stop

circuit, a protection circuit, an interlock circuit for opposite
movements (such as normal vs. reverse rotation), and an
interlock circuit (to prevent damage to the equipment at the
upper and lower positioning limits).

2) Note that when the PLC CPU 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 PLC CPU occurs in an input/output control block,
output control may be disabled.
External circuits and mechanisms should be designed to
ensure safe machinery operation in such a case.

3) Note that when an error occurs in a relay, triac or transistor

output device, the outpu t could be held either on or o ff.
For output signals that may lead to serious accidents,
external circuits and mechanisms should be designed to
ensure safe machinery operation in such a case.

DESIGN
PRECAUTIONS

• Do not bundle the control line together with or lay it close to the
main circuit or power line. As a guideline, lay the control line at
least 100mm (3.94") or more away from the main circuit or
power line.
Noise may cause malfunctions.

• Install module so that excessive force will not be applied to the
built-in programming connectors, power connectors or I/O
connectors.
Failure to do so may result in w ire damage/breakage or PLC
failure.

Notes

• Simultaneously turn on and off the power supplies of the main
unit and extension devices.

• Even if the AC power supply causes an instantaneous power
failure for less than 10 ms, the PLC can continue to operate.

• Even if the DC power supply causes an instantaneous power
failure for less than 5ms, the PLC can continue to operate.

• If a long-time power failure or an abnormal voltage drop occurs,
the PLC stops, and output is turned off. When the power
supply is restored, it will automatically restart (when the RUN
input is on).

WIRING
PRECAUTIONS

• Cut off all phases of the power supply externally before
installation or wiring work in order to avoid damage to the
product or electric shock.

WIRING
PRECAUTIONS

• Connect the AC power supply to the dedicated terminals
specified 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 .

• Use class D grounding (grounding resistance of 100Ω or less)
with a wire of 2mm2 or thicker on the grounding termina l of the

FX3U Series main unit.
However, do not connect the ground terminal at the same point
as a heavy electrical system.

• When drilling screw holes or wiring, make sure cutting or wire
debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or
malfunctions.

• Make sure to properly wire to the terminal in accordance with
the following precautions.
Failure to do so may cause electric shock, equipment failures, a
short-circuit, wire breakage, malfunctions, or damage to the
product.

- The disposal size of the cable end should follow the

dimensions described in the manual.

- Tightening torque should follow the specifications in the

manual.

Notes

• Input/output wiring 50 to 100 m (164’1” to 328’1”) long will
cause almost no problems of noise, but, generally, the wiring
length should be less than 20 m (65’7”) to ensure the safety.

• Extension cables are easily affected by noise. Lay the cables
at a distance of at least 30 to 50 mm (1.19” to 1.97”) away from
the PLC output and other power lines.

3.1 Wiring

3.1.1 Cable end treatment and tightening torque

For the terminals of FX3U 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 exceeding the specified torque.
Failure to do so may cause equipment failures or malfuncti ons.

• When one wire is connected to one term inal

6.2 mm (0.24")
or less

6.2 mm (0.24")
or less

φ3.2 (0.13")

φ3.2 (0.13")

Terminal
screw

Terminal

Solderless
terminal

<Reference>

Terminal

Manufacturer

JAPAN
SOLDERLESS
TERMINAL MFG
CO LTD (JST)

Type No. Certification

FV1.25-B3A

UL Listed YA-1(JST)

FV2-MS3

Pressure

Bonding Tool

• When two wires are connected to one terminal

6.2 mm (0.24")
or less

6.2 mm (0.24")
or less

φ3.2 (0.13")

6.3 mm(0.25")
or more

φ3.2 (0.13")

6.3 mm(0.25")
or more

Terminal
screw

Terminal

Solderless
terminal

<Reference>

Terminal

Manufacturer

JAPAN
SOLDERLESS
TERMINAL MFG
CO LTD (JST)

3.1.2 Removal and installation of quick-release terminal block

Removal Unscrew the terminal block mounting screw [both right

Installation Place the terminal block in the specified position, and

Type No. Certification

FV1.25-B3A UL Listed YA-1(JST)

and left screws] evenly, and remove the terminal block.

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
exceeding the specified torque.
Failure to do so may cause equipment failures or
malfunctions.

* Pay attention so that the center of the terminal block

is not lifted.

Pressure

Bonding Tool

3.2 Power supply specifications and example of external wiring

As for the details of the power sup ply specifications and example of
external wiring, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

3.2.1 Power supply specifications

[Main unit, Input/output extension units]

Item

Specification

AC power type

DC power type

Supply voltage 100 - 240V AC 24 V DC

Allowable
supply
voltage
range

Main unit

FX2N-32E,
FX2N-48E

85 to 264V AC

16.8 to 28.8V DC

24V DC +20%,

-30%

Rated frequency 50/60Hz −

Allowable instantaneous
power failure time

FX3U-16M to

*7

32M

Power
fuse

FX3U-48M to
128M

Operation can be
continued upon
occurrence of
instantaneous
power failure for
10 ms or less.

250V 3.15A

250V 5A

Operation can be
continued upon
occurrence of
instantaneous
power failure for 5

*4

ms or less.

FX2N-32E 250V 3.15A -

FX2N-48E 250V 5A 250V 5A

30A max. 5ms or

Rush
current

Main unit

FX2N-32E,
FX2N-48E

less/100V AC
65A max. 5ms or
less/200V AC

40A max. 5ms or
less/100V AC
60A max. 5ms or
less/200V AC

35A max. 0.5ms or
less/24V DC

-

FX3U-16M 30W 25W

FX3U-32M 35W 30W

FX3U-48M 40W 35W

Power
consumption

*1

FX3U-64M 45W 40W

FX3U-80M 50W 45W

FX3U-128M

65W −

FX2N-32E 30W(35VA) −

FX2N-48E 35W(45VA) 30W

24V DC
service
power
supply

FX3U-16M to
32M

FX3U-48M to
128M

*2

FX2N-32E 250mA −

400mA or less −

600mA or less −

FX2N-48E 460mA −

5V DC
builtin
power
supply

Main unit 500 mA or less

FX2N-32E

*3

FX2N-48E

690mA or less

*1 Does not include the power consumption of extension units /

special extension units, and of the extension blocks / special
extension blocks connected to those units.
For the power (current) consumed by the extension units/
blocks for input/output, refer to FX3U Series User's Manual ­Hardware Edition.
For the power consumed by the special extension units/blocks,
refer to the appropriate manu al.

*2 When input/output extension blocks are connected, the 24V

DC service power supply is consumed by the blocks, and the

*6

*5

current value to be used by the main unit is reduced.
The AC power (AC input) type and DC power type do not have
a service power supply.

*3 Cannot be used to supply power to an external destination.

The power is supplied to input/output extension blocks, special
extension blocks, special adapters and expansion boards.
The following manual shows further information.

→ Refer to FX3U Series User’s Manual - Hardware Edition.

*4 When the supply voltage is 200 V AC, the time can be changed

to 10 to 100 ms by editing the user program.

*5 When supply voltage is DC 16.8-19.2V, the connectable

extension equipment decreases. The following manual shows
further information.

→ Refer to FX3U Series User’s Manual - Hardware Edition.

*6 When attaching high-speed input/output special adapter

(FX3U-4HSX-ADP, FX3U-2HSY-ADP) and special function
block (FX0N-3A, FX2N-2AD, FX2N-2DA), the number of
connectable modules to the main unit is limited, due to the
current consumption (internal 24V DC) at startup. The following
manual shows further information.

→ Refer to FX3U Series User’s Manual - Hardware Edition.

*7 250V 5A is specified for the power fuse of FX3U-32MR/UA1.

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 units. For the details of wiring work, refer to section 3.1.

PLC

100 to 240V AC

Main unit

L

*

N

PL

Input/output
extension
unit

L

Fuse

MC

N

*Class D grounding

See section 3.3 for
details.

DC AC

Power supply for loads connected
to PLC output terminals

Breaker

Power on

MC

DC
power
supply

Emer­gency

3.2.3 Example of external wiring (DC power 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.

PLC

24V DC

Main unit

Circuit protector

Input/output
extension
unit

*

Fuse

PL

MC

Power on

MC

Emer­gency

MCMC

* Class D grounding

See section 3.3 for
details.

Power supply for loads connected
to PLC output terminals

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.

Independent grounding

Another

PLC

equipment

(Best condition)

Another

PLC

equipment

Shared grounding

(Good condition)

Another

PLC

equipment

Common grounding

(Not allowed)

• 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.

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 FX3U Series User's Manual - Hardware Edition.

3.4.1 Input specifications (24V DC input type)

MCMC

Number of
input
points

Item Specification

FX2N-8ER



FX3U-16M,
FX2N-8EX



FX3U-32M,
FX2N-16EX,

2N

-32E



FX

FX3U-48M,
FX2N-48E



FX3U-64M

 32 points

FX3U-80M

 40 points

FX3U-128M

 64 points

4 points (8 points)

8 points

16 points

24 points

*1

Item Specification

Input connecting type Refer to FX3U Series

Input form

Input
signal
voltage

Input
impedance

Input
signal
current

ON input
sensitivity
current

OFF input sensitivity current 1.5mA or less

Input response time Approx. 10ms

Input signal form

Input circuit insulation

Input operation display

*1 Each value inside ( ) indicates the number of occupied points.

Main units

Input/output
extension
unit

Main units

Input/output
extension unit/block

Main units

Input/output
extension unit/block

Main units

Input/output
extension unit/block

AC power Type 24V DC +10%, -10%

DC power Type

AC power Type 24V DC +10%, -10%

DC power Type

X000 to X005 3.9kΩ

X006, X007 3.3kΩ

X010 or more

X000 to X005 6mA/24V DC

X006, X007 7mA/24V DC

X010 or more

X000 to X005 3.5mA or more

X006, X007 4.5mA or more

X010 or more

User's Manual ­Hardware Edition

24V DC +20%, -30%

24V DC +20%, -30%

4.3kΩ
(Does not apply to
FX3U-16M.)

4.3kΩ

5mA/24V DC
(Does not apply to
FX3U-16M.)

5mA/24V DC

3.5mA or more
(Does not apply to
FX3U-16M.)

3.5mA or more/24V DC

• Sink input:
No-voltage contact
input
NPN open
collector transistor

• Source input:
No-voltage contact
input
PNP open
collector transistor

Photocoupler
insulation

LED on panel lights
when photocoupler is
driven.

3.4.2 Examples of 24V DC input wiring[AC power type]

1. Sink input type 2. Source input type

[1] [1]

Fuse

L

*

N

100 to 240V AC

S/S

0V

24V

X000
X001
X002
X003

[2] [2]

S/S

X000

*Class D grounding

See section 3.3 for details.

[1]:Main unit, Input/output extension unit
(Common to both sink and source inputs)

[2]:Input/output extension block
(Common to both sink and source inputs)

3-wire type

sensor

L

N

S/S

0V

24V

X000
X001
X002
X003

S/S

X000

Fuse

*

100 to 240V AC

3-wire type
sensor

3.4.3 Examples of 24V DC input wiring[DC power type]

1.Sink input type 2.Source input type

[1] [1]

Fuse

*1

S/S

(0V)

*2

(24V)

X000
X001
X002
X003

[2] [2]

S/S

X000

*1 Class D grounding

See section 3.3 for details.

*2

Do not connect the (0V), (24V) terminals with others,
since they are not available.

[1]:Main unit, Input/output extension unit
(Common to both sink and source inputs)

[2]:Input/output extension block
(Common to both sink and source inputs)

3-wire type
sensor

S/S

(0V)

(24V)

X000
X001
X002
X003

S/S

X000

*1

*2

Fuse

24V DC24V DC

3-wire type
sensor

3.4.4 Instructions for connecting input devices

1) In the case of no-voltage contact:
The input current of this PLC is 5 to 7 mA/24V DC.
Use input devices applicable to this minute current.
If no-voltage contacts (switches) for large current are used,
contact failure may occur.

<Example> Products of OMRON

LED

4Rp

15-Rp

15 k

Ω

or more

Model
name

Models Z, V
and D2RV

Model TL

Ω

)

(k

Rb

Rp

Type Model name

Operation
switch

Photoelectric
switch

Source input

0V

S/S

24V

Source input

X

S/S

24V

0V

X

LED

15 k

Ω

or more

Model A3P

Model E3S

Rb

Rp

Type

Microswitch

Proximity
switch

2) In the case of input device with built-in series diode:
The voltage drop of the series diode should be approx. 4 V or
less.
When lead switches with a series LED are used, up to two
switches can be connected in series.
Also make sure that the input current is over the input-sensing
level while the switches are ON.

Sink input

24V

S/S

X

0V

3) In the case of input device with built-in parallel resistance:
Use a device having a parallel resistance, Rp, of 15 kΩ or more.
When the resistance is less than 15 kΩ, connect a bleeder
resistance, Rb, obtained from the formula as shown in the
following figure.

Rb

Sink input

24V

S/S

X

0V

4) In the case of 2-wire proximity switch:
Use a two-wire proximity switch whose leakage current, , is

1.5 mA or less when the switch is off.
When the current is 1.5 mA or more, connect a bleeder
resistance, Rb, obtained from formula as shown in the following
figure.

6

Ω

)

I

-1.5

(k

Source input

0V

Rb

2-wire
proximity
sensor

I

S/S

24V

Rb

2-wire
proximity
sensor

X

I

Rb

Sink input

24V

S/S

X

0V

3.4.5 Input specifications (100V AC input type)

Item Specification

Number of
input
points

Input connecting type

Input form

Input signal voltage

Input impedance

Input signal current

ON input sensitivity current

OFF input sensitivity current 1.7mA or less

Input response time

Input signal form Contact input

Input circuit insulation Photocoupler insulation

Input operation display

FX2N-8EX-UA1/UL

FX3U-32MR/UA1

FX2N-48ER-UA1/UL

FX3U-64MR/UA1

8 points

16 points

24 points

32 points

Refer to FX3U Series User's
Manual - Hardware Edition

100V AC to 120V
+10%, -15% 50/60Hz

Approx. 21kΩ/50Hz
Approx. 18kΩ/60Hz

4.7mA/100V AC 50Hz

6.2mA/110V AC 60Hz
(70% or less when turned on
simultaneously)

3.8mA or more

Approx. 25ms to 30ms
(A high speed receiving is
improper)

LED on panel lights when
photocoupler is driven.

I

3.4.6 Examples of 100V AC input wiring

[1]

Fuse

L

*1

N

COM

Fuse

100-240V AC

X000
X001
X002

COM

Fuse

[2]

100-120V AC

X000
X001

MC

*2

*1 Class D grounding See section 3.3 for details.

*2 Do not take input signals from loads generating surge.

[1]:Main unit, Input/output extension unit
(100V AC input type)

[2]:Input extension block
(100V AC input type)

3.5 Relay output specifications and example of external wiring

As for the details of Instructions for connecting input devices, refer to
the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

3.5.1 Relay output specifications

Item Specification

FX2N-8ER



FX3U-16MR,
FX2N-8EYR

FX3U-32MR/,

2N-32ER

Number of
output
points

Output connecting type

Output form Relay

External power supply

Max. load

Min. load 5V DC, 2mA (reference value)

Open circuit leakage current -

Response
time

Circuit insulation Mechanical insulation

Display of output operation

FX
FX2N-16EYR

FX3U-48MR,

2N-48ER

FX

FX3U-64MR/32 points

FX3U-80MR

FX3U-128MR/ES

Resistance load

Inductive load

OFF→ON Approx. 10ms

ON→OFF Approx. 10ms

4 points (8 points)

8 points





,

16 points



24 points





40 points

64 points

Refer to FX3U Series User's Manual

- Hardware Edition

30V DC or less
240V AC or less ("250V AC or less" if
not a CE, UL, cUL compliant item)

2A/point

80VA

LED on panel lights when power is
applied to relay coil.

*1

*2

*1 Each value inside ( ) indicates the number of occupied points.
*2 The total load current of resistance loads per common terminal

should be the following value or less.

- 1 output points/common terminal : 2A

- 4 output points/common terminal : 8A

- 8 output points/common terminal : 8A
As for the number of outputs per common terminal, refer to
“Chapter 4 interpretation of partition” and the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

3.5.2 Life of relay output contact

The product life of relay contacts considerably varies depending on
the load type used. Take care that loads generating reverse
electromotive force or rush current may cause poor contact or
deposition of contacts which may lead to considerable reduction of
the contact product life.

1) Inductive load
Inductive loads generate large reverse electromotive force
between contacts at shutdown which may cause arcing. At a
fixed current consumption, as the power factor (phase between
current and voltage) gets smaller, the arc energy gets larger.
The standard life of the contact used for Inductive loads, such as
contactors and solenoid valves, is 500 thousand operations at
20VA.
The following table shows the approximate life of the relay based
on the results of our operation life test.

Test condition: 1 sec. ON / 1 sec.OFF.

Load capacity Contact life

20VA

35VA

80VA

The product life of relay contacts becomes considerably shorter
than the above conditions when the rush overcurrent is shut
down.

Some types of inductive loads generate rush current 5 to 15 times
the stationary current at activation. Make sure that the rush
current does not exceed the current corresponding to the
maximum specified resistance load.

2) Lamp load
Lamp loads generally generate rush current 10 to 15 times the
stationary current. Make sure that the rush current does not
exceed the current corresponding to the maximum specified
resistance load.

3) Capacitive load
Capacitive loads can generate rush current 20 to 40 times the
stationary current. Make sure that the rush current does not
exceed the current corresponding to the maximum specified
resistance load. Capacitive loads such as capacitors may be
present in electronic circuit loads including inverters.

0.2A/100V AC

0.1A/200V AC

0.35A/100V AC

0.17A/200V AC

0.8A/100V AC

0.4A/200V AC

→ For countermeasures while using inductive loads,

→ For the maximum specified resistance load,

3 million times

1 million times

2 hundred thousand times

refer to Subsection 3.5.4.

refer to Subsection 3.5.1.

3.5.3 Example of relay output wiring

Load

Y000
Y001

Fuse

COM1

24V DC

Load

Y010
Y011

Fuse

100V AC

COM2

PLC

3.5.4 Cautions in external wiring

For cautions in external wiring, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

Protection circuit for load short-circuiting

When a load connected to the output terminal short-circuits, the
printed circuit board may be burnt out. Fit a protective fuse on the
output circuit.

Protection circuit of contact when inductive load is used

An internal protection circuit for the relays is not provided for the
relay output circuit. It is recommended to use inductive loads with
built-in protection circuits. When using loads without built-in
protection circuits, insert an external contact protection circuit, etc.
to reduce noise and extend the product life.

1) DC circuit
Connect a diode in parallel with the load.
Use a diode (for commutation) having the following
specifications.

Item Standard

Reverse voltage 5 to 10 times the load voltage

Forward current Load current or more

2) AC circuit
Connect the surge absorber (combined CR components such as
a surge killer and spark killer, etc.) parallel to the load.
Select the rated voltage of the surge absorber suitable to the
output used. Refer to the table below for other specifications.

Item Standard

Electrostatic capacity Approx. 0.1µF

Resistance value Approx. 100 to 200Ω

Interlock

Loads, such as contactors for normal and reverse rotations, that
must not be turned on simultaneously should have an interlock in the
PLC program and an external interlock.

Common mode

Use output contacts of the PLC in the common mode.

3.6 Transistor output specifications and example of external wiring

As for the details of the transistor output specifications and external
wiring, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

3.6.1 Transistor output specifications

Item Specification

Number
of
output
points

FX3U-16MT/,
FX2N-8EYT

FX3U-32MT/,
FX2N-32ET,
FX2N-16EYT

FX3U-48MT/,
FX2N-48ET

8 points

16 points

24 points

FX3U-64MT/ 32 points

FX3U-80MT/ 40 points

FX3U-128MT/ES(S) 64 points

Output connecting type

FX3U-MT/S(-A),
FX2N-ET,
FX2N-48ET-D,
FX2N-EYT,

Output

FX2N-8EYT-H

form

FX3U-MT/SS,
FX2N-ET-ESS/UL,
FX2N-48ET-DSS,
FX2N-EYT-ESS/UL

Refer to FX3U Series
User's Manual ­Hardware Edition

Transistor(Sink)

Transistor(Source)

External power supply 5 to 30V DC

FX3U-MT/,

Max.
load

FX2N-ET,
FX2N-ET-,

Resist

FX2N-EYT,

ance

FX2N-EYT-ESS/UL

load

FX2N-8EYT-H

FX2N-16EYT-C

FX3U-MT/,
FX2N-ET,
FX2N-ET-,

Induct

FX2N-EYT,

ive

FX2N-EYT-ESS/UL

load

FX2N-8EYT-H

FX2N-16EYT-C

*1

0.5A/point

*2

1A/point

*3

0.3A/point

12W/24V DC

24W/24V DC

7.2W/24V DC

*4

*5

*6

Min. load −

Open circuit leakage current 0.1mA or less/30V DC

ON voltage 1.5V or less

Item Specification

Y000 to

5µs or less/10mA or more

Y002

(5 to 24V DC)

Y003 or

0.2ms or less/200mA

more

or more (at 24V DC)

0.2ms or less/200mA
or more (at 24V DC)

Y000 to

5µs or less/10mA or more

Y002

(5 to 24V DC)

Y003 or

0.2ms or less/200mA

more

or more (at 24V DC)

0.2ms or less/200mA
or more (at 24V DC)

Respon
se time

Main unit

OFF

→

ON

Input/output extension
units/blocks

Main unit

ON

→

OFF

Input/output extension
units/blocks

*7

*7

Circuit insulation Photocoupler insulation

Display of output operation

*1 The total load current of resistance loads per common terminal

should be the following value or less.

- 1 output point/common terminal : 0.5A

- 4 output point/common terminal : 0.8A

- 8 output point/common terminal : 1.6A
As for the number of outputs per common terminal, refer to
“Chapter 4 interpretation of partition” and the following manual.

LED on panel lights when
photocoupler is driven.

→ Refer to FX3U Series User's Manual - Hardware Edition.

*2 The total load current of resistance loads per common terminal

should be the following value or less.

- 4 output points/common terminal : 2A
As for the number of outputs per common terminal, refer to the
following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

*3 The total load current of resistance loads per common terminal

should be the following value or less.

- 16 output point/common terminal : 1.6A
As for the number of outputs per common terminal, refer to the
following manual.

→Refer to FX3U Series User's Manual - Hardware Edition.

*4 The total of inductive loads per common terminal should be th e

following value or less.

- 1 output point/common terminal : 12W/24V DC

- 4 output points/common terminal : 19.2W/24V DC

- 8 output points/common terminal : 38.4W/24V DC
As for the number of outputs per common terminal, refer to
“Chapter 4 interpretation of partition” and the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

*5 The total of inductive loads per common terminal should be the

following value or less.

- 4 output points/common terminal : 48W/24V DC
As for the number of outputs per common terminal, refer to the
following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

*6 The total of inductive loads per common terminal should be the

following value or less.

- 16 output points/common terminal : 38.4W
As for the number of outputs per common terminal, refer to the
following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

*7 The response time is as follows in the FX2N-8EYT-H.

-OFF→ON : 0.2ms or less/1A

-ON→OFF : 0.4ms or less/1A

3.6.2 External Wiring of Transistor Output

1. External Wiring of Sink Output Type

Load

Y000

Fuse

Y001

24V DC

COM1

Load

Y004

24V DC

Y005

COM2

PLC

Fuse

2. External Wiring of Source Output Type

Load

Fuse

Y000

Y001

24V DC

+V0

Load

Fuse

24V DC

Y004

Y005

+V1

PLC

3.6.3 Cautions in external wiring

For cautions in external wiring, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

Protection circuit for load short-circuits

A short-circuit at a load connected to an output terminal could cause
burnout at the output element or the PCB. To prevent this, a
protection fuse should be inserted at the output.
Use a load power supply capacity that is at least 2 times larger than
the total rated fuse capacity.

Contact protection circuit for inductive loads

When an inductive load is connected, connect a diode (for
commutation) in parallel with the load as necessary.
The diode (for commutation) must comply with the following
specifications.

Item Guide

Reverse voltage 5 to 10 times of the load voltage

Forward current Load current or more

Interlock

Loads, such as contactors for normal and reverse rotations, that
must not be turned on simultaneously should have an interlock in the
PLC program and an external interlock.

3.7 Triac output specifications and example of external wiring

As for the details of the triac output specifications and external
wiring, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

3.7.1 Triac output specifications

Item Specification

Number
of output
points

FX3U-32MS/ES
FX2N-16EYS
FX2N-32ES

FX3U-64MS/ES 32 points

Output connecting type

,

,

16 points

Refer to FX3U Series
User's Manual - Hardware
Edition

Output form Triac (SSR)

External power supply 85 to 242V AC

Max. load

Inductive load

Min. load

Open circuit leakage current

Resistance load

Response
time

OFF→ON 1ms or less

ON→OFF 10ms or less

*1

0.3A/point

15VA/100V AC,
30VA/200V AC

0.4VA/100V AC,

1.6VA/200V AC

1mA/100V AC,
2mA/200V AC

Circuit insulation Photo-thyristor insulation

Display of output operation

*1 The total load current of resistance loads per common terminal

should be the following value or less.

- 4 output points/common terminal : 0.8A

- 8 output points/common terminal : 0.8A
As for the number of outputs per common terminal, refer to
“Chapter 4 interpretation of partition” and the following manual.

LED on panel lights when
photo-thyristor is driven.

→ Refer to FX3U Series User's Manual - Hardware Edition.

3.7.2 External Wiring of Triac Output

Fuse

Fuse

Load

AC power
supply

Load

AC power
supply

Y000

Y001

COM1

Y004

Y005

COM2

U

U

PLC

3.7.3 Cautions in external wiring

For cautions in external wiring, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

Protection circuit for load short-circuits

A short-circuit at a load connected to an output terminal could cause
burnout at the output element or the PCB. To prevent this, a
protection fuse should be inserted at the output.

Micro current load

The PLC's internal Triac output circuit is equipped with a turn-off C-R
absorber. When connecting a very low current load of "0.4VA/100V
AC or less, or 1.6VA/200V AC or less", please connect a surge
absorber parallel to the load.
Select the rated voltage of a surge absorber that is suitable for the
load being used. Refer to the table below for other specifications.

Item Guide

Static electricity capacity Approx. 0.1µF

Resistance value Approx. 100 to 200Ω

Interlock

Loads, such as contactors for normal and reverse rotations, that must
not be turned on simultaneously should have an interlock in the PLC
program and an external interlock.

4. Terminal block layouts

For details on the terminal block layout, refer to the following manual.

→ Refer to FX3U Series User's Manual - Hardware Edition.

Interpretation of partition

The partition of the output terminals (see following figure) indicates
the range of the output connected to the same common.

Example: FX

3U

-48MT/ES

Output terminal

Y0

Y2

Y4

COM1 Y1 COM2Y3

Partition

This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.

Warranty

Mitsubishi will not be held liable for damage caused by factors found not to be
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
other than Mitsubishi products; and to other duties.

For safe use

•

This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric

•

power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.

•

This product has been manufactured under strict quality control. However
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.

HEAD OFFICE

: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310,
JAPAN

HIMEJI WORKS

: 840, CHIYODA CHO, HIMEJI, JAPAN