Mitsubishi Electric FX3U-4AD-PTW-ADP User Manual Download Page 1

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

Side

A

Side

B

JAPANESE

ENGLISH

JY997D29101G

Side

B

Safety Precaution

 

(Read these precautions before use.)

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

How to obtain manuals

For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.

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.

Manual name

Manual No.

Description

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/

FX

3UC

 Series 

User's Manual 
- Analog Control Edition

JY997D16701

MODEL CODE: 

09R619

Describes specifications for 

analog control and 

programming method for 

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/

FX

3UC

 Series PLC.

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/

FX

3UC

 Series 

Programming Manual 
- Basic & Applied Instruction
Edition

JY997D16601

MODEL CODE: 

09R517

Describes PLC programming

for basic/applied instructions

and devices.

FX

3S

 Series 

User’s Manual 
- Hardware Edition

JY997D48601

MODEL CODE: 

09R535

Explains FX

3S

 Series PLC

specifications for I/O, wiring,

installation, and maintenance.

FX

3G

 Series 

User’s Manual 
- Hardware Edition

JY997D31301

MODEL CODE: 

09R521

Explains FX

3G

 Series PLC

specifications for I/O, wiring,

installation, and maintenance.

FX

3GC

 Series 

User’s Manual 
- Hardware Edition

JY997D45401

MODEL CODE: 

09R533

Explains FX

3GC

 Series PLC

specifications for I/O, wiring,

installation, and maintenance.

FX

3U

 Series 

User’s Manual 
- Hardware Edition

JY997D16501

MODEL CODE: 

09R516

Explains FX

3U

 Series PLC

specifications for I/O, wiring,

installation, and maintenance.

FX

3UC

 Series 

User’s Manual 
- Hardware Edition

JY997D28701

MODEL CODE: 

09R519

Explains FX

3UC

 Series PLC

specifications for I/O, wiring,

installation, and maintenance.

Applicable standards

FX

3U

-4AD-PTW-ADP units comply with the EC Directive (EMC Directive) and UL

standards (UL, cUL). Further information can be found in the following manual. 

→ 

FX

3S

 Series Hardware Manual (Manual No. JY997D48301)

→ 

FX

3G

 Series Hardware Manual (Manual No. JY997D46001)

→ 

FX

3GC

 Series Hardware Manual (Manual No. JY997D45201)

→ 

FX

3U

 Series Hardware Manual (Manual No. JY997D18801)

→ 

FX

3UC

 (D, DS, DSS) Series Hardware Manual (Manual No. JY997D28601)

→ 

FX

3UC

-32MT-LT-2 Hardware Manual (Manual No. JY997D31601)

Regarding the standards that relate to the main unit, please refer to either the FX
series product catalog or consult with your nearest Mitsubishi product provider.

Attention

This product is designed for use in industrial applications.

Note

Authorized Representative in the European Community:

Mitsubishi Electric Europe B.V.
Gothaer Str. 8, 40880 Ratingen, Germany

Caution for EC Directive

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 per-
formance 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 care-
fully. 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 loss or 
accuracy between ±10 % in very heavy industrial areas.
However, Mitsubishi Electric suggest that if adequate EMC precautions are fol-
lowed for the users complete control system, users should expect accuracy 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 accuracy can be improved out by
averaging the readings. This can be achieved either through functions on the
analog special adapters or through a users program.

1. Outline

FX

3U

-4AD-PTW-ADP (hereinafter called PTW-ADP) is an analog special adapter for

measuring temperature via four channels (three-wire sensors) of a connected Pt100
platinum resistance thermometer.

1.1 Incorporated Items

Verify that the following product and items are included in the package:

Product

FX

3U

-4AD-PTW-ADP Pt100 temperature sensor input special adapter

Accessories User’s manual (This manual)

1.2 External Dimensions, Part Names, and Terminal Layout 

2. Installation

For installation/uninstallation details, refer to the respective PLC User's manual
Hardware Edition.

  

[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock: 

Used to connect additional special adapters onto the left side of this special
adapter.

[4] Special adapter connector cover:

Remove this cover to connect additional special adapters to the left side.

[5] Direct mounting hole:2 holes of 

φ

4.5 (0.18") (mounting screw: M4 screw)

Not used when connecting to FX

3GC

/FX

3UC

 Series PLC.

[6] POWER LED (green):

Lit while 24 V DC power is supplied properly to terminals '24+' and '24-'.

[7] Terminal block (European type):

Connect platinum resistance thermometer (Pt100 three-wire type) and 24 V DC
power supply

[8] Special adapter connector:

Used to connect this special adapter to PLC main unit or special adapter.

[9] DIN rail mounting hook
[10] Special adapter fixing hook
[11] Special adapter connector:

Used to connect communication or analog special adapters to the left side of the
PTW-ADP.

INSTALLATION 
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.

INSTALLATION 
PRECAUTIONS

Use the product within the generic environment specifications described in PLC
main unit manual (Hardware Edition).
Never use the product in areas with excessive dust, oily smoke, conductive dusts,
corrosive gas (salt air, Cl

2

, H

2

S, SO

2

, or NO

2

), flammable gas, vibration or

impacts, or expose it to high temperature, condensation, or rain and wind.
If the product is used in such conditions, electric shock, fire, malfunctions,
deterioration or damage may occur.

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.

Do not touch the conductive parts of the product directly. 
Doing so may cause device failures or malfunctions.

Connect special adapter securely to their designated connectors.
Loose connections may cause malfunctions.

[6]

[5]

[10]

[7]

[8]

[9]

[3]

[2]

[4]

Weight: Approx. 0.1 kg (0.22 lbs)

Special adapter 

connector cover 

is removed  

[11]

[1]

90(3.55")

98(3.86")

(mounting hole pitch)

106(4.18")

7(0.28")

74(2.92")

15.5

(0.62")

17.6

(0.7")

15.1

(0.6")

L1+

L1-

I1-

L3+

L3-

24+

24-

L2+

L2-

L4+

L4-

I4-

I3-

I2-

2.1 Connection to the PLC

This section describes the connection method to the PLC (FX

3U

 Series PLC is

used for the following example).
For installation method to other PLCs, refer to the respective PLC User's manual
Hardware Edition.

Procedure

1) Turn off the power.

Disconnect all the cables connected to the PLC main unit and special adapter,
and demount the main unit and special adapter mounted on DIN rail or
mounted directly using screws.

2) Install an expansion board to the main unit.

For the expansion board installation procedure, refer to the following manual:

→ 

FX

3U

 Series User's Manual - Hardware Edition

3) Remove the special adapter connector cover

on the expansion board (fig.A).
When connecting this product to another
special adapter, please replace the
'expansion board' in the above description
with a 'special adapter' and perform the
procedure as indicated.

4) Slide the special adapter slide lock 

(fig.B) of the main unit.
When connecting this product to another
special adapter, please replace the 'main
unit' in the above description with a 'special
adapter' and perform the procedure as
indicated. (Please replace the following
procedures similarly.)

5) Connect the 

special adapter 
(fig.C) to the 
main unit as 
shown on the 
right.

6) Slide back the 

special adapter 
slide lock (fig.B) 
of the main unit 
to fix the special 
adapter (fig.C).

Connection precautions

Connect all the high-speed I/O special adapters before connecting other
special adapters when they are used in combination.

Do not connect a high-speed I/O special adapter on the left side of any
special adapters other than other high-speed I/O special adapters.

RUN

STOP

FX

3U

-48MR/ES

-48MR/ES

FX

3U-48M

3)

4)

B

B

A

4)

RUN

STOP

FX

FX

3U

3U

-48MR/ES

-48

MR

/ES

FX

FX

3U

3U

-48M

-48M

POW

ER

FX

3U-***

-***

FX

3U-48M

6)

C

B

B

5)

5)

5)

6)

3. Wiring

  

3.1 Applicable cable and terminal tightening torque

3.1.1

Terminal block (European type)

1) Wire size

- The power supply wire should use 22-20 AWG wire.
- Wiring to a Pt100 platinum resistance thermometer should be used the 

cable of it or a twisted shielded cable.

2) Applicable cable

3) Termination of cable end

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.
<Reference> 

*1 Old model name: CRIMPFOX ZA 3
*2 Old model name: CRIMPFOX UD 6

When using a stick terminal with insulating sleeve, choose a wire with proper
cable sheath referring to the above outside dimensions, or otherwise, the wire
cannot be inserted easily.
The tightening torque must be 0.22 to 0.25 N

m. Do not tighten terminal

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

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.

WIRING 
PRECAUTIONS

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 observe the following precautions in order to prevent any
damage to the machinery or accidents due to abnormal data written to the
PLC under the influence of noise:

1) Do not bundle the power line or shield of the analog input/output cable

together with or lay it close to the main circuit, high-voltage line, or load
line.
Otherwise, noise disturbance and/or surge induction are likely to take
place. As a guideline, lay the control line at least 100mm (3.94") or more
away from the main circuit, high-voltage line, or load line.

2) Ground the shield of the analog input/output cable at one point on the

signal receiving side. However, do not use common grounding with heavy
electrical systems.

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 end of strand wire 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 the 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 of the PLC main unit.

- Tightening torque should follow the specifications in the manual of the 

PLC main unit.

Type

Wire size

Single-wire

0.3 mm

2

 to 0.5 mm

2

 (AWG22 to 20)

2-wire

2 pieces of 0.3 mm

2

 (AWG22)

Manufacturer

Model

Caulking tool

Phoenix Contact Co., Ltd.

AI 0.5-8WH

CRIMPFOX 6

*1

(or CRIMPFOX 6T-F

*2

)

9mm

(0.35")

- Strand wire/single wire

8mm

(0.31")

Contact area

(Crimp area)

14mm(0.55")

2.6mm(0.1")

Insulation sleeve

- Stick terminal with insulating sleeve

3.2 Power Supply Wiring

For the power supply wiring, refer to the following manual.

→ 

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 Series User’s Manual - Analog Control Edition

3.3 Selection of platinum resistance thermometer sensors

→ 

For the terminal configuration, refer to Section 1.2

Precautions on platinum resistance thermometer wiring

Type of platinum resistance thermometer
Select Pt100 3-wire platinum resistance thermometer sensors.
This thermometer will not be affected by voltage drop in the cable connection area,
and will ensure accurate measurement.

Separate the cable of the platinum resistance thermometer sensors from the other
motive power cables or areas easily affected by inductive noise (of the commercial
power, etc.).

Example of platinum resistance thermometer wiring

*1 24 V DC service power supply of the FX

3S

/

FX

3G

/

FX

3U

 Series PLC can also be

used.

3.4 Grounding

Grounding should be performed as stated below.

The grounding resistance should be 100 

Ω

 or less.

Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" of the
following figure.
For details, refer to the respective PLC User's manual Hardware Edition.

The grounding wire size should be AWG 22-20 (0.3-0.5 mm

2

).

The grounding point should be close to the PLC, and all grounding wire should be
as short as possible.

PTW-ADP

L    -

I    -

24+

24-

Shielded wire

Terminal

block

24 V DC

External power supply

wiring

Pt100

L    +

4.7k

Ω

Pt100

Platinum resistance

thermometer wiring

ch

ch

4.7k

Ω

100k

Ω

100k

Ω

4.7k

Ω

4.7k

Ω

100k

Ω

100k

Ω

L    -

I    -

L    +

L   +, L  

 

 -, I 

 

  +, ch    :    represents the channel number.

Grounding

(Ground resistance:

100

Ω

 or less)

*1

+5V

PLC

Other

equipment

PLC

Other

equipment

PLC

Other

equipment

Shared grounding

Good condition

Common grounding

Not allowed

Independent grounding

Best condition

4. Specifications

 

4.1 Applicable PLC

The version number can be checked by monitoring D8001/D8101 as the last three
digits indicate it.

4.2 General Specifications

Items other than the following are equivalent to the those of the PLC main unit.
For general specifications, refer to the respective PLC User's manual Hardware
Edition.

4.3 Power Supply Specifications

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.

Do not drop the product or exert strong impact to it.
Doing so may cause damage.

DISPOSAL 
PRECAUTIONS

Please contact a certified electronic waste disposal company for the
environmentally safe recycling and disposal of your device.

TRANSPORTATION AND 
STORAGE PRECAUTIONS

The product is a precision instrument. During transportation, avoid any impacts. 
Failure to do so may cause failures in the product. After transportation, verify the
operations of the product.

Model name

Applicability

FX

3S

 Series PLC

Ver. 1.00 or later (from first production)

FX

3G

 Series PLC

Ver. 1.00 or later (from first production)

FX

3GC

 Series PLC Ver. 1.40 or later (from first production)

FX

3U

 Series PLC

Ver. 2.20 or later (from first production)

FX

3UC

 Series PLC

Ver. 1.30 or later (from the production manufactured in August,
2004 with SER No. 48****)

Item

Specification

Dielectric withstand 
voltage

500 V AC for one minute

Between all terminals and
ground terminal of PLC
main unit

Insulation resistance

5   M

Ω

  o r   m o r e   b y   5 0 0   V   D C

megger

Item

Specification

A/D conversion 
circuit driving power

24 V DC +20 %/-15 %, 50 mA for 24 V DC
Connect a 24 V DC power supply to the terminal block.

Interface driving 
power

5 V DC, 15 mA
5 V DC power is supplied from the internal power supply of
main unit.

4.4 Performance Specifications

Item

Description

Centigrade (

°

C)

Fahrenheit (

°

F) 

Input signal

3-wire platinum resistance thermometer sensor Pt100

JIS C 1604-1997

Rated 
temperature 
range

-100 

°

C to +600 

°

C

-148 

°

F to +1112 

°

F

Digital output

-1000 to +6000

-1480 to +11120

Resolution

0.2 to 0.3 

°

C

0.4 to 0.5 

°

F

Total accuracy

±

0.5 % for full scale (when ambient temperature is 25 

°

C

±

°

C)

±

1.0 % for full scale (when ambient temperature is in the range

of 0 to 55 

°

C)

A/D 
conversion 
time

FX

3U

/FX

3UC

 Series PLC: 200 

μ

(The data will be updated at every scan time of the PLC.)

FX

3S

/FX

3G

/FX

3GC

 Series PLC: 250 

μ

s

(The data will be updated at every scan time of the PLC.)

Input 
characteristics

Insulation 
method

The photocoupler is adopted to insulate the analog input
area from the PLC.

The DC/DC converter is adopted to insulate the power
supply line from the analog input area.

Channels are not insulated from each other.

Occupied 
points

0 point (This number is not related to the maximum number of
input/output points of the PLC.)

0

+600

°

C

+6000

-100

°

C

-1000

-11

5

°

C

+6

15

°

C

+6150

-1150

0

+1112

°

F

+11120

-148

°

F

-1480

-175

°

F

+113

9

°

F

+11390

-1750

FX

3U

-4AD-PTW-ADP

USER'S MANUAL

This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and the manuals of all relevant
products fully to acquire proficiency in handling and operating the product. Make
sure to learn all the product information, safety information, and precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Registration:
The company and product names described in this manual are registered
trademarks or the trademarks of their respective companies.

Effective April 2015
Specifications are subject to change without notice.

©

 2007 Mitsubishi Electric Corporation

Manual Number

JY997D29101

Revision

G

Date

April 2015

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