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
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310,
JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
3. 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.
3.1 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.)
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.
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, 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.
RUN
STOP
FX
3U
-48MR/ES
FX
3U-48M
3)
4)
B
B
A
4)
RUN
STOP
FX
3U
-48MR/ES
FX
3U
-48M
-48M
POWER
RD
SD
FX
3U-232ADP
-MB
FX
3U-48M
6)
C
B
B
5)
5)
5)
6)
4. Wiring
For details of wiring, refer to FX Series User's Manual - Data Communication Edition,
and FX
3U
Series User’s Manual - MODBUS Serial Communication Edition.
5. Specification
5.1 Applicable PLC
The version number can be checked by monitoring D8001, as well the last three digits
indicate the version number.
5.2 General Specifications
For general specifications, refer to the PLC main unit manual.
The following items are not equivalent to the PLC main unit.
5.3 Power Supply Specification
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.
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.
Model name
Applicability
FX
3U
Series PLC
Ver. 2.40 and later for MODBUS communication
Ver. 2.20 and later for all communication functions except
MODBUS
Item
Specification
Dielectric withstand
voltage
500 V AC, 1 min
Conforming to JEM-1021
Between terminal block and ground
terminal of PLC main unit
Insulation resistance
5M
Ω
or more, 500 V
DC by Megger
Item
Specification
Current
consumption
30mA
5V DC power is supplied internally from the main unit.
5.4 Performance Specification
Item
Specification
Transmission
standard
Conforming to RS-232C
Type of isolation
Photocoupler isolation
Transmission
distance
15m (49’ 2") or less
Connection method
9-pin D-Sub connector (male)
Number of occupied
I/O points
0 point (This number is not related to the maximum number
of input/output points of the PLC.)
Communication
method
Full-duplex
Baud rate
C omp ute r lin k, n on-proto col com municat ion, an d
MODBUS:
300/600/1200/2400/4800/9600/19200 bps
Programming communication:
9600/19200/38400/57600/115200bps
Communication
format
Computer link (dedicated protocol: format 1/format 4),
Non-protocol, Programming communication,
and MODBUS (RTU, ASCII)
LED display:
LED color
Power: green, RD: red, SD: red
