Mitsubishi Electric MELSEC iQ-F FX5UC Series User manual

MELSEC iQ-F FX5UC CPU Module
Hardware Manual
This manual describes the part names, dimensions, installation, cabling and
specifications for the product. This manual is extracted from MELSEC iQ-F
FX5UC User's Manual (Hardware). Refer to MELSEC iQ-F FX5UC User's
Manual (Hardware) 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: Ethernet is a trademark of Xerox Corporation. MODBUS

is a
registered trademark of Schneider Electric SA. The company name and the
product name to be described in this manual are the registered trademarks or
trademarks of each company.
Effective January 2019
Specifications are subject to change without notice.
©2015 MITSUBISHI ELECTRIC CORPORATION
Safety Precautions (Read these precautions before use.)
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
Associated manuals
Associated manuals
FX5UC CPU module comes with this document (hardware manual).
For a detailed explanation of the FX5UC CPU module hardware and
information on instructions for PLC programming and intelligent function
module, refer to the relevant documents.
Manual Number JY997D61001
Revision G
Date January 2019
Indicates that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous
conditions, resulting in minor or moderate injury or
property damage.
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, cut off all phases of the power
supply externally. Failure to do so in the power ON status may cause
electric shock.
•Before modifying the program in operation, forcible output, running or
stopping the PLC, read through this manual carefully, and ensure
complete safety.
An operation error may damage the machinery or cause accidents.
•Do not change the program in the PLC from two or more peripheral
equipment devices at the same time. (i.e. from an engineering tool and a
GOT) Doing so may cause destruction or malfunction of the PLC program.
•Use the battery for memory backup in conformance to the MELSEC iQ-F
FX5UC User's Manual (Hardware).
- Use the battery for the specified purpose only.
- 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.
STARTUP AND
MAINTENANCE
PRECAUTIONS
- 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.
- When replacing the battery, make sure to use our specified product
(FX3U-32BL).
- When a battery error occurs ("BAT" LED is lit in red), follow the
description in MELSEC iQ-F FX5UC User's Manual (Hardware).
Incorrect handling of the battery may cause heat excessive generation,
bursting, ignition, liquid leakage or deformation, and lead to injury, fire or
failures and malfunction of facilities and other equipment.
STARTUP AND
MAINTENANCE
PRECAUTIONS
•Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric representative.
•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.
- Peripheral devices, expansion adapter, and connector conversion adapter
- Extension modules, bus conversion module, connector conversion
module, and battery
•Do not use the chemicals for cleaning.
•
If there is the possibility of touching the PLC inside a control panel in
maintenance, make sure to discharge to avoid the influence of static electricity.
•Since there are risks such as burn injuries, please do not touch the
surface of the equipment with bare hands when it is operating in an
environment which exceeds ambient temperature of 50°C.
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 on the Battery Directive in EU countries,
refer to the MELSEC iQ-F FX5UC User's Manual (Hardware).)
TRANSPORTATION
PRECAUTIONS
•When transporting the PLC with the optional battery, turn on the PLC
before shipment, confirm that the battery mode is set using a parameter
and the BAT LED is OFF, and check the battery life.
If the PLC is transported with the BAT LED ON or the battery exhausted,
the battery-backed data may be unstable during transportation.
•The PLC is a precision instrument. During transportation, avoid impacts
larger than those specified in the general specifications (Section 2.1) by
using dedicated packaging boxes and shock-absorbing palettes. Failure to
do so may cause failures in the PLC.
After transportation, verify operation of the PLC and check for damage of
the mounting part, etc.
•When transporting lithium batteries, follow required transportation
regulations. (For details on the regulated products, refer to the MELSEC
iQ-F FX5UC User's Manual (Hardware).)
How to obtain manuals
For the necessary product manuals or documents, consult with your local
Mitsubishi Electric representative.
Manual name Manual No. Description
MELSEC iQ-F FX5
User's Manual
(Startup)
JY997D58201
Explains performance
specifications, procedures before
operation, and troubleshooting of
the FX5 CPU module.
MELSEC iQ-F FX5UC
User's Manual
(Hardware)
JY997D61401
Explains FX5UC CPU module
specification details for I/O, wiring,
installation, and maintenance.
Certification of UL, cUL standards
Please consult with Mitsubishi Electric for information on UL, cUL standard
practices and the corresponding types of equipment.
Compliance with EC directive (CE Marking)
This product complies with EC directive, however, this document does not guarantee
that a mechanical system including this product will comply with EC directive.
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.
Caution for compliance with EC Directive
•Please use the FX5UC CPU modules while installed in conductive shielded
control panels under a general industrialenvironment.
•Programmable controllers are open-type devices that must be installed and
used within conductive control panels. 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 controller.
•For the control panel, use the product having sufficient strength, fire
protectiveness and shielding property to an installation environment.
•24 V DC of the power supply must be supplied from the circuit double/
reinforced insulated from the main power supply (MAINS).
[Caution for compliance with the LVD directive (EN61010-2-201:2013)]*1
•To an external connection port other than AC power supply terminal and AC
input/output terminal, connect the circuit separated from a dangerous
voltage by a double/reinforced insulation.
•Do not wire two or more crimp terminals to one terminal. (If the wiring with
two or more wires is needed, take an appropriate action such as adding an
external terminal.)
•For crimp terminals to be used for the wiring applied with 30 V AC or higher,
use the products with insulating sleeves.
•Cutoff device such as a breaker or a circuit protector should be installed in
accordance with the following precautions.
- Use EN60947-1 or EN60947-3 standards.
- Place the cutoff device so that it can be operated easily.
- Specify that the cutoff device is for this equipment.
*1 For the time of compliance with the LVD directive (EN61010-2-201:2013),
refer to MELSEC iQ-F FX5UC User's Manual (Hardware).
Incorporated Items
Check if the following product and items are included in the package:
1. Outline
1.1 Part names
MELSEC iQ-F FX5
User's Manual
(Serial Communication)
JY997D55901
Explains the N:N network,
MELSEC Communication
protocol, inverter communication
and non-protocol communication.
MELSEC iQ-F FX5
User's Manual
(MODBUS Communication)
JY997D56101 Explains the MODBUS serial
communication.
MELSEC iQ-F FX5
User's Manual
(Ethernet Communication)
JY997D56201 Functions for communication via
built-in Ethernet port.
Included Items
CPU module
FX5UC-MT/D
(: 32, 64, 96)
Product 1 module
FX2NC-100MPCB [1 m, three wire] 1 cable
FX2NC-100BPCB [1 m, two wire] 1 cable
Manuals [Japanese/English] 1 manual
Manuals [Chinese] 1 manual
FX5UC-MT/DSS
FX5UC-32MT/DS-TS
FX5UC-32MT/DSS-TS
FX5UC-32MR/DS-TS
(: 32, 64, 96)
Product 1 module
FX2NC-100MPCB [1 m, three wire] 1 cable
Manuals [Japanese/English] 1 manual
Manuals [Chinese] 1 manual
Manual name Manual No. Description
I/O module
FX5-CEX/D
FX5-C32ET/D
(: 16, 32)
Product 1 module
FX2NC-10BPCB1 [0.1 m, double-
ended] 1 cable
FX5-CEX/DS
FX5-C32EX/DS-TS
FX5-C32ET/DSS
FX5-C32ET/DS(S)-TS
FX5-CEYT/D(SS)
FX5-C32EYT/D(SS)-TS
FX5-C16EYR/D-TS
(: 16, 32)
Product 1 module
No. Name
[1] Expansion adapter connecting hooks
[2] Built-in RS-485 communication terminal block
[3] Built-in Ethernet communication connector (with cover)
[4]
Operation status display LEDs
PWR Green On while the PLC is powered.
ERR*1 Red Lit/flashing when an error occurs.
P.RUN Green On while the PLC is running.
BAT Red Lit when the battery voltage drops.
CARD Green Lit when the SD memory card is inserted.
SD/RD Green Lit when data is sent or received through
communication via built-in Ethernet.
RD Green Lit when data is received through communication via
built-in RS-485.
SD Green Lit when data is sent through communication via
built-in RS-485.
Included Items
[5]
[9][10] [18]
[19] [23]
[6]
[20]
[21]
[22]
[6]
[7]
[8]
[2]
[3]
[17]
[15]
[16]
[4]
[1]
[1]
[26]
[24]
[25]
[11]
[14]
Front panel
(Spring clamp
terminal block type)
Under sideFront panel
(Connector type)
With cover open
Left side Right side
[12]
[13]
Side
B
Side
A
Side
BJAPANESE ENGLISH
JY997D61001G

*1 When powered on in the factory default state, ERR LED starts flashing
because there is no program. For details, refer to the following manual.
→ MELSEC iQ-F FX5UC User’s Manual (Hardware).
*2 Products that do not have the genuine product certification label or
nameplate are not covered by the warranty.
1.2 External dimensions and weight
Outer paint color Body: Munsell 0.6B7.6/0.2
2. Installation (general specifications)
As for installation of the I/O modules and expansion adapters, refer to MELSEC
iQ-F FX5UC User's Manual (Hardware).
2.1 Generic specifications
[5] Input connector
[6] Extension module connection hooks
[7] Input/Output display LEDs (Green)
[8] DISP switch (for switching Input/Output display LEDs)
[9] Output connector
[10] DIN rail mounting hooks
[11] Input terminal
[12] Input display LEDs (Green)
[13] Output display LEDs (Green)
[14] Output terminal
[15] Terminal names
shows a function grounding terminal.
[16] Power connector for CPU module
[17] RS-485 terminal resister selector switch
[18] Battery cover
[19] Expansion adapter connector cover
[20] Extension connector cover
[21] DIN rail mounting groove
[22]
Nameplate printing*2
is a mark that instructs to use the cable with an appropriate
temperature rating (80°C or more) for wiring.
[23] Genuine product certification label*2
[24] SD memory card disable switch
[25] SD memory card slot
[26] RUN/STOP/RESET switch
Model name W: mm MASS (Weight): kg
FX5UC-32MT/D
FX5UC-32MT/DSS 42.1 Approx. 0.2
FX5UC-32MT/DS-TS
FX5UC-32MT/DSS-TS 48.1 Approx. 0.25
FX5UC-32MR/DS-TS 68.2 Approx. 0.35
FX5UC-64MT/D
FX5UC-64MT/DSS 62.2 Approx. 0.3
FX5UC-96MT/D
FX5UC-96MT/DSS 82.3 Approx. 0.35
No. Name
90
W 89.1
74
Unit: mm
Connector type Spring clamp
terminal block type
93.7
74
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 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.
•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 and battery connecting cable securely to their designated
connectors. Loose connections may cause 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.
- Peripheral devices, expansion adapter, and connector conversion adapter
- Extension modules, bus conversion module, connector conversion
module, and battery
Item Specification
Operating ambient
temperature*1 -20 to 55(-4 to 131), non-freezing*2
Storage ambient
temperature -25 to 75(-13 to 167), non-freezing
Operating
ambient humidity
5 to 95%RH, non-condensing*3
Storage ambient
humidity 5 to 95%RH, non-condensing
Vibration
resistance*4*5
Frequency
(Hz)
Acceleration
(m/s2)
Half amplitude
(mm) Sweep count
Installed
on DIN
rail
5 to 8.4 1.75
10 times each in
X, Y, Z directions
(80 min in each
direction)
8.4 to 150 4.9 
Shock
resistance*4 147 m/s2Acceleration, Action time: 11 ms,
3 times by half-sine pulse in each direction X, Y, and Z
Noise durability By noise simulator of 1000 Vp-p noise voltage, 1 μs noise
width and 30 to 100 Hz noise frequency
Dielectric withstand
voltage
*6
500 V AC for 1 minute Between batch of all
terminals and ground
terminal
Insulation
resistance*6
10 MΩor higher by 500 V DC
insulation resistance tester
Grounding Class D grounding (Grounding resistance: 100 Ωor less)
<Common grounding with a heavy electrical system is not allowed.>
*7
Working
atmosphere
Free from corrosive or flammable gas and excessive
conductive dusts
Operating
altitude
*8 0 to 2000 m
Installation
location Inside a control panel*9
Overvoltage
category*10 II or less
Pollution
degree*11 2 or less
*1 The simultaneous ON ratio of available PLC inputs or outputs changes
with respect to the ambient temperature. In the case where operating
ambient temperature is lower than 0, the specifications are different
from the above description. Refer to MELSEC iQ-F FX5UC User's
Manual (Hardware).
*2 The operating ambient temperature is 0 to 55  (32 to 131  ) for products
manufactured before June 2016. For intelligent function modules, refer to
the manual for each product.
*3 When used in a low-temperature environment, use in an environment
with no sudden temperature changes. If there are sudden temperature
changes because of opening/closing of the control panel or other
reasons, condensation may occur, which may cause a fire, fault, or
malfunction. Furthermore, use an air conditioner in dehumidifier mode to
prevent condensation.
*4 The criterion is shown in IEC61131-2.
*5 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
the lower specification.
*6 For dielectric withstand voltage test and insulation resistance test of each
product, refer to the following manual.
→ Refer to MELSEC iQ-F FX5UC User's Manual (Hardware).
*7 For grounding, refer to Section 3.2.
*8 The PLC cannot be used at a pressure higher than the atmospheric
pressure to avoid damage.
*9 The programmable controller is assumed to be installed in an environment
equivalent to indoor.
*10 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.
*11 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
Install the PLC in an environment conforming to the generic specifications
(Section 2.1), installation precautions.
Installation location in enclosure
Space in enclosure
Extension devices can be connected on the left and right sides of the CPU module.
If you intend to add extension devices in the future, keep necessary spaces on
the left and right sides.
2.3 Procedures for installing to and detaching from DIN rail
The products can be installed on a DIN46277 rail [35 mm wide]. This section
explains the installations of the CPU modules.
2.3.1 Installation
1) Push out all DIN rail mounting hooks (below fig. A)
2) Fit the upper edge of the DIN rail mounting groove (right fig. B) onto the
DIN rail.
3) Lock the DIN rail mounting hooks (below fig. C) while pressing the PLC
against the DIN rail.
2.4 Connection of power supply connector
Use the power connector to supply power to the CPU module.
For details, refer to MELSEC iQ-F FX5UC User's Manual (Hardware).
2.5 Connection to input/output connector
The input/output connectors of the CPU modules (Connector type) conform to
MIL-C-83503.
For details, refer to MELSEC iQ-F FX5UC User's Manual (Hardware).
1) Compliant connectors (commercially available connectors)
Use a 20-pin (1-key) socket connector conforming to MIL-C-83503.
Confirm in advance that the connectors do not interfere with other parts
including connector covers.
2) Input/output cables (available from Mitsubishi)
Input/output cables with attached connectors are available.
3) Connectors for user-made input/output cables (available from Mitsubishi)
Users should provide electric wires and a pressure bonding tool.
4) Certified connectors (commercially available connectors)
Connectors made by DDK Ltd. shown in item 3).
FX5-C32EX
FX5-232ADP
FX5-C16EYR/D-TS
A
A
50 mm
A
A
A
FX5UC
CPU
module
1AA
1
Model names Length Description Shape
FX-16E-500CAB-S 5 m General-purpose
input/output cable
•Single wire
(Wire color: red)
•PLC side:
A 20-pin connector
FX-16E-150CAB 1.5 m Cables for
connecting the
terminal module
with input/output
connectors.
For terminal
module connection,
refer to MELSEC
iQ-F FX5UC User's
Manual
(Hardware).
•Flat cables
(with tube)
•A 20-pin connector
at both ends
FX-16E-300CAB 3 m
FX-16E-500CAB 5 m
FX-16E-150CAB-R 1.5 m
•Round multicore
cables
•A 20-pin connector
at both ends
FX-16E-300CAB-R 3 m
FX-16E-500CAB-R 5 m
Model name and composition of
input/output connector
Applicable electric wire (UL-1061
are recommended) and tool
Our model name
Details of part
(made by DDK Ltd.)
Electric wire
size
Pressure bonding tool
(made by DDK Ltd.)
FX2C-I/O-
CON for
flat cable
10-
piece
set
Solderless
connector
FRC2-A020-30S
AWG28
(0.1 mm2)
1.27 pitch,
20-core
357J-4674D:
Main body
357J-4664N:
Attachment
FX2C-I/O-
CON-S for
bulk wire
5-
piece
set
Housing
HU-200S2-001
Solderless contact
HU-411S
AWG22
(0.3 mm2)357J-5538
FX2C-I/O-
CON-SA
for bulk
wire
5-
piece
set
Housing
HU-200S2-001
Solderless contact
HU-411SA
AWG20
(0.5 mm2)357J-13963
B
C3

2.6 Connection to input/output terminal block
The input/output terminal blocks of the products which have -TS at the end of
their model name conform to spring clamp terminal block.
For details, refer to MELSEC iQ-F FX5UC User’s Manual (Hardware).
1) Wire size
2) Treatment of wire ends
When not using a ferrule, strip the cable about 10 mm from the tip and connect
it as a strand wire so that the wires do not separate.
When using a ferrule,
strip the cable about 10 mm from the tip to connect a wire ferrule at the
striped area.
Failure to do so may result in electric shock or short circuit
between adjacent terminals because the conductive part. If the wire strip length
is too short, it may result in the poor contact to the spring clamp terminal part.
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.
The following table shows wire ferrules and tools for wire ferrules
compatible with the terminal block. Use of items other than these may
result in not being able to remove the wire ferrule, so carefully check that
the wire ferrule can be unplugged.
<Reference product>
3) Connection and disconnection of the cable
Spring clamp terminal block is the push-in type, therefore, wiring without a
tool is possible only by inserting the connecting terminal to the terminal
block. However, the stranded wire does not comply with the push-in type,
and a tool is required for connecting cables.
•Connection of the cable
Fully insert a cable or bar solderless terminal whose end has been
properly processed into the wire insertion opening.
If the cable or bar solderless terminal cannot be inserted with this
procedure, fully insert the cable or bar solderless terminal while pushing
the open/close button with a flathead screwdriver having a tip width of
2.0 to 2.5 mm. After fully inserting the cable, remove the screwdriver.
Do not tighten terminal screws exceeding the specified torque range.
Otherwise it may cause equipment failure or malfunction.
When wiring with the thick electric wire, make sure to prevent the
conductive parts from protruding to the front of the terminal block.
<Reference>
•Disconnection of the cable
While pushing the open/close button with a flathead screwdriver having a
tip width of 2.0 to 2.5 mm, disconnect the cable or bar solderless terminal.
2.7 Connection to built-in RS-485 Communication
terminal block
The built-in RS-485 Communication terminal block conform to terminal block
(European type).
For details, refer to MELSEC iQ-F FX5UC User’s Manual (Hardware).
1) Wire size
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.
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 N⋅m.
Do not tighten terminal screws with a torque outside the above-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.
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).
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 FX5UC User's Manual (Hardware)..
No. of wire
per terminal
Wire size
Single wire/Strand
wire
Ferrules with
insulation sleeve
Ferrules without
insulation sleeve
One wire AWG24 to 16 AWG23 to 19 AWG23 to 16
Manufacturer Model Wire size Crimp tool
PHOENIX CONTACT
GmbH & Co. KG
AI 0.5-10 WH 0.5 mm2
CRIMPFOX 6
AI 0.75-10 GY 0.75 mm2
A 1.0-10 1.0 mm2
A 1.5-10 1.5 mm2
Manufacturer Model
PHOENIX CONTACT GmbH & Co. KG SZS 0.4×2.5 VDE
No. of wire
per terminal
Wire size
Solid wire/Stranded
wire
Ferrules with insulating
sleeve
1 AWG22 to 20 AWG22 to 20
2AWG22 
10 mm
Contact area
(Crimp area)
16 to 18 mm
2 to 2.8 mm
Insulation sleeve
- Ferrule with insulation sleeve
10 mm
- Strand wire/single wire
Manufacturer Model Caulking tool
PHOENIX CONTACT GmbH & Co. KG AI 0.5-6WH CRIMPFOX 6
Manufacturer Model names
PHOENIX CONTACT GmbH & Co. KG SZS 0.4 × 2.5
DESIGN PRECAUTIONS
•Make sure to set up the following safety circuits outside the PLC to ensure
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
normal 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
machinery operation in such a case.
- Note that when an error occurs in a relay, transistor or triac 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 machinery operation in such a case.
•Construct an interlock circuit in the program so that the whole system
always operates on the safe side before executing the control (for data
change) of the PLC in operation. Read the manual thoroughly and ensure
complete safety before executing other controls (for program change,
parameter change, forcible output and operation status change) of the
PLC in operation. Otherwise, the machine may be damaged and
accidents may occur due to erroneous operations.
WIRING PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before
attempting installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
•Make sure to attach the terminal cover, provided as an accessory, before
turning on the power or initiating operation after installation or wiring work.
Failure to do so may cause electric shock.
•The rating temperature of the cable should be 80or more.
9 mm
- Strand wire/single wire
8 mm
14 mm
2.6 mm
Insulating sleeve Contact area
(Crimp area)
- Ferrule with insulation sleeve
0.4 mm 2.5 mm
With
straight tip
3.1 Power supply specifications and external wiring
3.1.1 Power supply specifications [CPU module]
*1 This item shows value when only the CPU module is used.
The value in [ ] is the value in the maximum configuration connectable to
the CPU module. (The value does not include the external 24 V DC
power supply of extension devices)
3.1.2 Example of external wiring
24 V DC power is supplied to the CPU module. CPU module supplies power
through dedicated power connector.
For the details, refer to the MELSEC iQ-F FX5UC User's Manual (Hardware).
*1 Class D grounding
See section 3.3 for details.
3.2 Grounding
Ground the PLC as stated below.
•Perform class D grounding. (Grounding resistance: 100 Ωor less)
•Ground the PLC independently if possible.
If it cannot be grounded independently, ground it jointly as shown below.
•Bring the grounding point close to the PLC as much as possible so that the
ground cable can be shortened.
3.3 Input specifications and external wiring
3.3.1 Input specifications [24 V DC input type]
WIRING PRECAUTIONS
•Please separate the AC power supply from the AC commercial power
supply network with an insulation transformer when connecting to AC
input module or AC output module.
•Make sure to properly wire to the terminal block (European type) 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.
- Twist the ends of stranded wires and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric
wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the
connected parts are directly stressed.
•Make sure to properly wire to the spring clamp terminal block 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.
- Twist the ends of stranded wires and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric
wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the
connected parts are directly stressed.
WIRING PRECAUTIONS
• Perform class D grounding (grounding resistance: 100 Ω or less) of the grounding
terminal on the CPU module and extension modules with a wire 2 mm
2
or thicker.
Do not use common grounding with heavy electrical systems (refer to
section 3.3).
•When drilling screw holes or wiring, make sure that cutting or wiring debris
do not enter the ventilation slits of the PLC.
Failure to do so may cause fire, equipment failures or malfunctions.
•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.
Item Specification
Power supply voltage 24 V DC
Voltage fluctuation range +20%, -15%
Allowable instantaneous
power failure time
Operation can be continued upon occurrence
of instantaneous power failure for 5 ms or less.
Power fuse 125 V 3.15 A Time-lag Fuse
Rush
current
FX5UC-32M/35 A max. 0.5 ms or less/24 V DC
FX5UC-64MT/
FX5UC-96MT/40 A max. 0.5 ms or less/24 V DC
Power
consumption
*1
FX5UC-32M/5 W/24 V DC [30 W/24 V DC +20%, -15%]
FX5UC-64MT/8 W/24 V DC [33 W/24 V DC +20%, -15%]
FX5UC-96MT/11 W/24 V DC [36 W/24 V DC +20%, -15%]
24 V DC built-in power supply
capacity 500 mA
5 V DC built-in power supply
capacity 720 mA
Item Specification
Input signal voltage 24 V DC +20%, -15%
Input
impedance
CPU
module
X0 to X17 4.3 kΩ
X20 and
subsequent 5.6 kΩ
I/O module 5.6 kΩ
Input
signal
current
CPU
module
X0 to X17 5.3 mA/24 V DC
X20 and
subsequent 4.0 mA/24 V DC
I/O module 4.0 mA/24 V DC
ON input
sensitivity
current
CPU
module
X0 to X17 3.5 mA or more
X20 and
subsequent 3.0 mA or more
I/O module 3.0 mA or more
OFF input sensitivity current 1.5 mA or less
Input response time Refer to MELSEC iQ-F FX5UC
User's Manual (Hardware)
Input
signal
form
(Input
sensor
form)
FX5UC-MT/D
FX5-CEX/D
FX5-C32ET/D
•No-voltage contact input
•NPN open collector transistor
FX5UC-MT/DSS
FX5UC-32M/-TS
FX5-CEX/DS
FX5-C32EX/DS-TS
FX5-C32ET/DSS
FX5-C32ET/DS(S)-TS
•Sink input:
- No-voltage contact input
- NPN open collector transistor
•Source input:
- No-voltage contact input
- PNP open collector transistor
Input operation display LED on panel turns on when input.
(DISP switch IN side.)
24 V DC
Breaker,
Circuit protector,
Fuse etc. Power
on
Emergency
stop
Power supply for loads connected to CPU module output terminals
MC
PL
CPU module
Fuse
*1
PLC Other
equipment PLC Other equipment PLC Other equipment
Shared grounding
(Good condition)
Common grounding
(Not allowed)
Independent grounding
(Best condition)

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
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2)
Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi products.
(3) Special damages and secondary damages whether foreseeable or not, compensation for
accidents, and compensation for damages to products other than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
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
3.3.2 Examples of input wiring
1. Examples of input wiring (FX5UC-MT/D)
2. Examples of input wiring (FX5UC-MT/DSS, FX5UC-32M/-TS)
3.4 Transistor output specifications and external wiring
3.4.1 Transistor output specifications
*1 When two COM(or +V) terminals are connected outside the CPU
module, resistance load is 1.6 A or less.
Where indicates: 0, 1, or 2
As for the number of outputs per common terminal, refer to the following manual.
→ Refer to MELSEC iQ-F FX5UC User's Manual (Hardware).
3.4.2 External wiring of transistor output
1. External wiring of sink output type
2. External wiring of source output type
3.5 Relay output specifications and external wiring
3.5.1 Relay output specifications
*1 When two COM  terminals are connected outside the CPU module,
resistance load is 8 A or less.
Where
 indicates: 0 or 1
3.5.2 External wiring of relay output
1. External wiring of DC power supply
Item Specification
Output
form
FX5UC-  MT/D, FX5UC-32MT/DS-TS,
FX5-C
 EYT/D, FX5-C32EYT/D-TS ,
FX5-C32ET/D, FX5-C32ET/DS-TS ,
Transistor (Sink)
FX5UC-  MT/DSS,
FX5UC-32MT/DSS-TS,
FX5-C  EYT/DSS,
FX5-C32EYT/DSS-TS,
FX5-C32ET/DSS(-TS)
Transistor (Source)
External power supply 5 to 30 V DC
Max. load
CPU
module
Y0 to Y3 0.3 A/point Make sure that
the total load
current of 8 load
points is 0.8 A*1
or less.
Y4 and
subsequent 0.1 A/point
I/O module 0.1 A/point
Open circuit leakage current 0.1 mA or less/30 V DC
COM
X0
X1
X2
COM
COM
X0
COM
-
+
-
+
24 V DC Fuse
*1
Breaker, Circuit protector, Fuse, etc.
Three wire
sensor NPN
[1]: FX5UC-MT/D [2]: FX5-CEX/D, FX5-C32ET/D
[1]
[2]
*1 Class D grounding See section 3.3 for details.
COM0
X0
X1
X2
COM0
COM0
X0
COM0
-
+
COM0
X0
X1
X2
COM0
COM0
X0
COM0
-
+
[1]: FX5UC-MT/DSS, FX5UC-32M/-TS
[2]: FX5-CEX/DS, FX5-C32EX/DS-TS, FX5-C32ET/DSS, FX5-C32ET/DS(S)-TS
*1 Class D grounding See section 3.3 for details.
*2 For -TS type, the "COM0" terminal is the "S/S" terminal.
1) Sink input
[1]
[2]
[1]
[2]
Fuse
*1
*2
*2
*2
*2
*2
*2
*2
*2
Breaker, Circuit protector,
Fuse, etc.
Three wire
sensor NPN
24 V DC 24 V DC Fuse
*1
2) Source input
Breaker, Circuit protector,
Fuse, etc.
Three wire
sensor PNP
ON voltage
CPU
module
Y0 to Y3 1.0 V or less
Y4 and
subsequent 1.5 V or less
I/O module 1.5 V or less
Respon
se
time
OFF↔
ON
CPU
module
Y0 to Y3 2.5 μs or less/10 mA
or more
(5 to 24 V DC)
Y4 and
subsequent
0.2 ms or less/100 mA
(at 24 V DC)
I/O module
0.2 ms or less/100 mA
(at 24 V DC)
Output operation display
LED on panel turns on when
output. (DISP switch OUT
side.)
Item Specification
External power supply
30 V DC or less
240 V AC or less ("250 V AC or less" if not a
CE, UL, cUL compliant item)
Max. load 2 A/point
Make sure that the total load
current of 8 load points is
4 A*1 or less.
Min. load 5 V DC, 2 mA (reference value)
Open circuit leakage current 
Response time OFF↔ON Approx. 10 ms
Output operation display LED on panel turns on when output.
Item Specification
COM0 COM0 Y0 Y1 Y2
24 V
DC
LoadLoadLoad
Fuse
Emergency stop
FX5UC-MT/D
FX5UC-32MT/DS-TS
FX5-CEYT/D
FX5-C32EYT/D-TS
FX5-C32ET/D
FX5-C32ET/DS-TS
+V0 +V0 Y0 Y1 Y2
24 V
DC
LoadLoadLoad
Fuse
Emergency stop
FX5UC-MT/DSS
FX5UC-32MT/DSS-TS
FX5-CEYT/DSS
FX5-C32EYT/DSS-TS
FX5-C32ET/DSS(-TS)
COM0 Y0 Y1 Y2
24 V
DC
LoadLoadLoad
Fuse
Emergency stop
FX5UC-32MR/DS-TS
FX5-C16EYR/D-TS
COM0
2. External wiring of AC power supply
3.6 Built-in Ethernet communication specifications and
external wiring
As for the details on the built-in Ethernet communication specifications and
external wiring, refer to the following manual.
→ Refer to MELSEC iQ-F FX5 User's Manual (Ethernet Communication).
3.6.1 Communication specification
*1 IEEE802.3x flow control is not supported.
*2 The value indicates the number of connectable stages when a repeater
hub is used.
Contact the manufacturer of the switching hub for the number of
connectable stages when using a switching hub.
*3 The first device for MELSOFT connection is not included in the number of
connections. (The second and the following devices are included.)
*4 The CC-Link IE field network Basic, FTP server, SNTP client, Web server
and simple CPU communication function are not included in the number
of connections.
*5 If the first octet is 0 or 127, a parameter error (2222H) will occur.
(Example: 0.0.0.0, 127.0.0.0, etc.)
3.6.2 Wiring
For the wiring, refer to the following manual.
→ Refer to MELSEC iQ-F FX5 User's Manual (Ethernet Communication).
3.6.3 Pin Configuration
The connector of the built-in Ethernet communication are arranged as follows:
Applicable cable
A straight cable is used. A cross cable can also be used when using direct
connection between a personal computer and the FX5UC CPU module.
3.7 Built-in RS-485 communication specifications and
external wiring
3.7.1 Communication specification
3.7.2 Wiring
For the wiring, refer to the following manual.
→ Refer to MELSEC iQ-F FX5 User's Manual (Serial Communication).
→ Refer to MELSEC iQ-F FX5 User's Manual (MODBUS Communication).
3.7.3 Terminal layouts
The terminals of the built-in RS-485 communication are arranged as follows:
4. Terminal arrangement
For details on the terminal arrangement, refer to the following manual.
→ Refer to MELSEC iQ-F FX5UC User's Manual (Hardware).
Item Specification
Data transmission speed 100/10 Mbps
Communication mode Full-duplex (FDX)/Half-duplex (HDX)*1
Interface RJ45 connector
Transmission method Base band
Maximum segment length (The
distance between hub and node) 100 m
Cascade
connection
100BASE-TX Max. 2 stages*2
10BASE-T Max. 4 stages*2
Protocol type
CC-Link IE field network Basic,
MELSOFT connection, SLMP (3E frame),
Socket communication, Predefined
protocol support, FTP Server,
MODBUS/TCP communication, SNTP
client, Web server (HTTP), Simple CPU
communication function
Number of simultaneously open
connections allowed
Total of 8 connections*3*4
(Up to 8 external devices can access
one CPU module at the same time.)
Hub*1 Hubs with 100BASE-TX or 10BASE-T
ports can be used.
Insulation method Pulse transformer
IP address*5 Initial value: 192.168.3.250
Pin No. Signal Contents
1 TXD+ Transmit data (+)
2 TXD- Transmit data (-)
3 RXD+ Receive data (+)
4 Not used -
5 Not used -
6 RXD- Receive data (-)
7 Not used -
8 Not used -
COM0 Y0 Y1 Y2
100 V
AC
LoadLoadLoad
Fuse
Emergency stop
FX5UC-32MR/DS-TS
FX5-C16EYR/D-TS
COM0
8
1
10BASE-T Cable conforming to Ethernet standard practice:
Category 3 or higher (STP cable)
100BASE-TX Cable conforming to Ethernet standard practice:
Category 5 or higher (STP cable)
Item Specification
Transmission standard In conformance to RS-485/RS-422
Data transmission speed Max. 115.2 kbps
Communication method Full-duplex/Half-duplex
Maximum total
extension distance 50 m
Protocol type
MELSOFT connection, MELSEC Communication
protocol (1C/3C/4C frames), Non-protocol
communication, MODBUS RTU, Inverter
communication, N:N network, Parallel link
Predefined protocol support
Insulation method No insulation between the PLC.
Terminal resistors Built-in (OPEN/110 Ω/330 Ω)
Connection method European terminal block
Signal name Function
RDA Receive data
RDB
SDA Send data
SDB
SG Signal ground
RDA
RDB
SDA
SDB
SG