background image

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; machine damage 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
HIMEJI WORKS

 : MITSUBISHI DENKI BLDG MARUNOUTI TOKYO 100-8310
 : 840, CHIYODA CHO, HIMEJI, JAPAN

Side

B

Side

A

Side

B

JAPANESE

ENGLISH

JY997D13901C

Safety Precaution

 

(Read these precautions before use.)

This manual classify the safety precautions into two categories: 

 and 

.

Depending on circumstances, procedures indicated by 

 may also be

linked to serious results.
In any case, it is important to follow the directions for usage.

Associated Manuals

Note: FX

3UC

 Series PLC specification details for I/O, wiring, installation, and

maintenance can only be found in the Japanese Manual.

How to obtain manuals

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

3U

 / FX

3UC

 Series 

User's Manual 
- Analog Control 
Edition

JY997D16701

MODEL CODE: 

09R619

Describes specifications for 
analog control and 
programming method for FX

3U

 

/ FX

3UC

 Series PLC.

FX

3U

/FX

3UC

 Series 

Programming Manual 
-   B a s i c   &   A p p l i e d
Instruction Edition

JY997D16601

MODEL CODE: 

09R517

Describes PLC programming
for basic/applied instructions
and devices.

FX

3U

 Series 

User’s Manual 
- Hardware Edition

JY997D16501

MODEL CODE: 

09R516

Expl ain s FX

3 U

 Se r ies PL C

specification details for I/O,
w i r i n g ,   i n s t a l l a t i o n ,   a n d
maintenance.

Applicable Standard

FX

3U

-4AD-ADP made in June, 2005 or later complies with 

the EC Directive (EMC

Directive) and UL standards (UL, cUL)

Further information can be found in the

following manual. However, FX

3UC

-32MT-LT does not comply with EC Directive (EMC

Directive), UL standards (UL, cUL).

→ 

→ 

→ 

→ 

Refer to FX

3U

 Series Hardware Manual (Manual No. JY997D18801)

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 induced 
errors not exc10%/-10% in very heavy industrial areas.
However, Mitsubishi Electric suggest that if adequate EMC precautions are fol-
lowed 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
averaging the readings. This can be achieved either through functions on the
analog special adapters or through a users program in the FX

3U

 Series PLC

main unit.

1. Outline

The FX

3U

-4AD-ADP adapter for analog input (hereinafter called 4AD-ADP) is a special

adapter to add four analog input points.

1.1 Incorporated Items

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

1.2 External Dimensions, Part Names, and Terminal Layout 

[1]

DIN rail mounting groove (DIN rail: DIN46277)

[2]

Name plate

[3]

Special adapter slide lock: 
Used to connect special adapter on left side of this special adapter.

[4]

Special adapter connector cover:
Remove this cover for connecting special adapter on 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

3UC

 Series PLC.

Manual

This

manual

Product

V1+

I1+

COM1

V3+

I3+

24+

24-

V2+

I2+

V4+

I4+

COM4

COM3

COM2

7(0.28")

74(2.92")

15.5

(0.62")

POWER

FX3U-4AD-ADP

90(3.55")

98(3.86")

106(4.18")

17.6

(0.7")

15.1

(0.6")

24+

24-

V1+

I1+

COM1

V2+

I2+

COM2

V3+

I3+

COM3

V4+

I4+

COM4

[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]

2. Installation

The product can be mounted on a DIN rail (DIN46227) or mounted directly using
screws.
For installation/uninstallation and safety precautions, refer to the following manuals:

→ 

→ 

→ 

→ 

Refer to the FX

3U

 Series User's Manual - Hardware Edition.

  

2.1 Connection to the FX

3U

 Series PLC

Refer to the procedure 2) for configuring a new system.

Refer to the procedure 1) for adding product to an existing system.

Procedure

1) Turn off the power.

Disconnect all the cables connected to the PLC main unit and special adapter. 
Dismount 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 installation of expansion board, refer to the following manual:

→ 

→ 

→ 

→ 

Refer to the FX

3U

 Series User's Manual - Hardware Edition

3) Remove the special adapter connector cover on

the expansion board (Right fig.A).
In case of 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 (Right fig.B) of

the main unit.
In case of 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.)

[6]

POWER LED (green):
Lit while 24V DC power is supplied properly to terminals '24+' and '24-'.

[7]

Terminal block (European type):
Connect the analog voltage/current signal, and 24V 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 special adapter or analog special adapter to this
adapter on left side.

INSTALLATION 
PRECAUTIONS

Cut off all phases of the power source externally before starting the installation or
wiring work, thus avoiding electric shock or damages to the product.

INSTALLATION 
PRECAUTIONS

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

2

, H

2

S, NH

3

, SO

2

, or NO

2

), flammable gas, vibrations or impacts, or

expose it to high temperature, condensation, or wind and rain.
If the product is used in such a place described above, electrical shock, fire,
malfunction, damage, or deterioration may be caused.

When drilling screw holes or wiring, cutting chips or wire chips should not enter
ventilation slits.
Such an accident may cause fire, failure or malfunction.

Do not touch the conductive parts of the product directly, thus avoiding failure or
malfunction.

Fix the special adapter securely to the specified connector. 
Incorrect connection may cause malfunction.

RU

N

ST

OP

FX

FX

3U

3U

-48

MR

/ES

-48MR/ES

FX

3U

-48

M

3)

4)

B

B

A

4)

5) Connect the

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

6) Slide back the 

special adapter
slide lock (Right
fig.B) of the main
unit to fix the
special adapter
(Right 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 a
communication or analog special adapter.

2.2 Connection to the FX

3UC

 Series PLC

Refer to the procedure 2) for configuring a new system.

Refer to the procedure 1) for adding product to an existing system.

Procedure

1) Turn off the power.

Disconnect all the cables connected to the PLC.Dismount the PLC from the
DIN rail. 

2) Install an expansion board to the main unit.

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

→ 

→ 

→ 

→ 

Refer to the manual of the expansion board to be used.

3) Remove the special adapter connector

cover on the expansion board (Right fig.A).
In case of 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 (Right

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

5) Connect special 

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

6) Slide back the 

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

RU

N

ST

OP

FX

FX

3U

3U

-48

MR

/ES

-48MR/ES

FX

FX

3U

3U

-48M

-48M

PO

W

ER

FX

3U-**

* -***

FX

3U

-48

M

6)

C

B

B

5)

5)

5)

6)

B

B

A

4)

4)

4)

3)

PO

WE

R

FX

3U-

*** -

***

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

Wiring to analog device should use 20-22 AWG wire.

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. 

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 0.25N

m.

WIRING 
PRECAUTIONS

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

WIRING 
PRECAUTIONS

Never let cutting chips and wire chips enter the ventilation slits of this product
or PLC when performing wiring.
Otherwise, fire, failure or malfunction may occur.

Make sure to observe the precautions below in order to prevent any damage
to a machine or any accident which might be caused by abnormal data
written in the PLC due to the influence of noise:

1) Do not lay close or bundle with the main circuit, high-voltage power line,

or load line. 
Otherwise effects of noise or surge induction are likely to take place.
Keep a safe distance of more than 100 mm (3.94") from the above when
wiring.

2) Ground the shield wire or shield of a shielded cable at one point on the

PLC. However, do not ground at the same point as high voltage lines.

Observe the following items to wire the lines to the European terminal board.
Failing to do so may cause electric shock, short circuit, disconnection, or
damage of the product.

- The disposal size of the cable end should follow the dimensions described 

in this manual.

- Tighten to a torque should follow the torque described in this manual.

- Twist the end of strands and make sure there is no loose wires. 

- Do not solder-plate the electric wire ends.

- Connect only the electric wires of regulation size.

- Fix the electric wires so that the terminal block and connected parts of 

electric wires are not directly stressed.

Properly perform wiring to the terminal block of the FX

3U

 Series PLC

following the precautions below in order to prevent electrical shock, short-
circuit, breakage of wire, or damage to the product:

- The disposal size of the cable end should follow the dimensions described 

in this manual.

- Tighten to a torque should follow the torque described in this manual.

Type

Wire size

Single-wire

0.3mm

2

 to 0.5mm

2

 (AWG22 to 20)

2-wire

2 pieces of 0.3mm

2

 (AWG22)

Manufacturer

Model

Caulking tool

Phoenix Contact Co., Ltd.

AI 0.5-8WH

CRIMPFOX UD6

9mm

(0.35")

- Strand wire/single wire

8mm

(0.31")

Contact 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 FX

3U

 / FX

3UC

 Series

User’s Manual - Analog Control Edition

3.3 Wiring of Analog Input

→ 

→ 

→ 

→ 

For the terminal configuration, refer to Section 1.2

*1 Use 2-core shielded twisted pair cable for the analog input lines, and separate

the analog input lines from other power lines or inductive lines.

*2 Make sure to short-circuit the 'V

…

+' and 'I

…

+' terminals when current is input. 

(

…

: input channel number)

*3 24V DC service power supply of the FX

3U

 Series PLC can also be used.

3.4 Grounding

Grounding should be performed as stated below.

The grounding resistance should be 100

 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 FX

3U

 Series 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.

4. Specification 

 

STARTUP AND 
MAINTENANCE 
PRECAUTIONS

Do not disassemble or modify the unit.
Doing so may cause failure, malfunction or fire.
* For repair, contact your local Mitsubishi Electric distributor.

Do not drop the product or do not exert strong impact, doing so may cause
damage.

DISPOSAL 
PRECAUTIONS

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

TRANSPORT AND 
STORAGE PRECAUTIONS

During transportation avoid any impact as the product is a precision instrument.
Check the operation of the product after transportation.

250

147k

ch

47k

4AD-ADP

V   +, I   +, ch    :    represents the channel number.

Terminal

block

I   +

COM

V   +

*1

I   +

V   +

250

147k

ch

47k

24+

24-

24V DC

+15V

*1

Using current

input

Using voltage

input

*2

External power

supply wiring

*3

Grounding

(Ground resistance: 100

 or less)

COM

PLC

Another

equipment

PLC

Another

equipment

PLC

Another

equipment

Shared grounding

Good condition

Common grounding

Not allowed

Independent grounding

Best condition

4.1 Applicable PLC

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

4.2 General Specification

For the general specification, refer to the manual of the PLC main unit.
The items other than the following are equivalent to those of the PLC main unit.

4.3 Power Supply Specification

4.4 Performance Specification

Model name

Applicability

FX

3U

 Series PLC

Ver. 2.00 (from the first product) and later

FX

3UC

 Series PLC

Ver. 1.20 (from the product manufactured in May, 2004 with SER
No. 45****) and later

Item

Specification

Dielectric withstand 
voltage

500V AC for one minute

Conforming to JEM-1021
Between all terminals and
ground terminal of PLC
main unit

Insulation resistance

5M

 or more by 500V DC megger

Item

Specification

A/D conversion 
circuit driving power

24V DC +20%/-15%, 40mA for 24V DC
Connect a 24V DC power supply to the terminal block.

Interface driving 
power

5V DC, 15mA
5V DC power is supplied internally from the main unit.

Item

Description

Voltage input

Current input

Analog input 
range

0 to 10V DC
(Input resistance: 194 k

)

4 to 20mA DC
(Input resistance: 250 

)

Maximum 
absolute input

-0.5V, +15V

-2mA, +30mA

Digital output

12 bits, binary

11 bits, binary

Resolution

2.5mV (10V/4000)

10

µ

A (16mA/1600)

Total accuracy

• ±

0.5% (

±

50mA) for full scale 

of 10V (when ambient 
temperature is 25

°

C

±

5

°

C)

• ±

1.0% (

±

100mA) for full scale 

of 10V (when ambient 
temperature is 0

°

C to 55

°

C)

• ±

0.5% (

±

80

µ

A) for full scale of 

16mA (when ambient 
temperature is 25

°

C

±

5

°

C)

• ±

1.0% (

±

160

µ

A) for full scale 

of 16mA (when ambient 
temperature is 0

°

C to 55

°

C)

A/D conversion 
time

200 

µ

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

Input 
characteristics

Insulation 
method

The photo-coupler is adopted to insulate the analog input area
from the PLC.

The DC-DC converter is adopted to insulate the driving 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.)

Digit

a

l ou

tput

Analog input

0

10.2V

4080

4000

10V

Digit

a

l out

p

u

t

Analog input

0

20.4

mA

1640

4mA

1600

20mA

FX

3U

-4AD-ADP

USER'S MANUAL

This manual describes the part names, dimensions, mounting, and
specifications of the product. Before use, read this manual and manuals of
relevant products fully to acquire proficiency in 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 trademarks of each company.

Effective June 2005
Specifications are subject to change without notice.

 2005 Mitsubishi Electric Corporation

Manual Number

JY997D13901

Revision

C

Date

June 2005

Reviews: