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3. Wiring
DESIGN
PRECAUTIONS
• 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 main circuit line 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 wire or shield of the shielded cable at one point on the
PLC. However, do not ground them at the same point as the high-voltage
lines.
• Install module so that excessive force will not be applied to the peripheral
device connectors. Failure to do so may result in wire damage/breakage or
PLC failure.
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
• 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.
3.1 Applicable Cable and Connector
The following table shows the applicable cable and connector for a PROFIBUS-
DP network.
Item
Description
PROFIBUS-DP
Shielded twisted-pair PROFIBUS cable complying with
network cable
EN50170
Applicable only to PROFIBUS connector
(9-pin D-SUB Connector: #4-40unc inch screw thread)
Connector
→ For PROFIBUS connectors see
the PROFIBUS connector manual
3.2 Wiring
To connect the 32DP to a PROFIBUS-DP network, use the PROFIBUS connector
and shielded twisted-pair PROFIBUS cable complying with EN50170.
Shielded twisted-
pair PROFIBUS
PROFIBUS connector
cable to
PROFIBUS-DP
network
FX
-32DP
3U
PROFIBUS-DP Interface Block
For noise prevention please
attach at least 50 mm
(1.97") of the twisted-pair
FX
3U
PROFIBUS cable along the
PROFIBUS-DP
grounding plate to which the
Interface Block
ground terminal is
FX
Series PLC
3U
connected.
Shielded twisted-pair
PROFIBUS cable
complying with EN50170
to Profibus-DP network
Grounding plate
Grounding resistance of 100 Ω or less
(Class D)
3.3 Grounding
Ground the cable as stated below.
• Use a grounding resistor of 100Ω or less.
• Ground the cables indepently for best results.
When independent grounding is not used, use "shared grounding" as follows.
→ For details, refer to the FX
3U
Series User's Manual - Hardware Edition.
Other
Other
PLC
PLC
equipment
equipment
Independent grounding
Shared grounding
Best condition
Good condition
• The grounding wire size should be AWG 14 (2 mm
• The grounding point should be as close to the PLC as possible, and all grounding
wire should be as short as possible.
3.4 Bus Terminator
To avoid the signal reflections, connect a self-terminating DP-Connector/Device at
each end of the PROFIBUS-DP Network.
Note
The FX
-32DP is not sef-terminated.
3U
4. Specifications
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, communication
errors 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 can-
not 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
output could be held either 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
DESIGN
PRECAUTIONS
• 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 main circuit line together with or lay it close to the main cir-
cuit, 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 wire or shield of the shielded cable at one point on the PLC.
However, do not ground them at the same point as the high-voltage lines.
• Install module so that excessive force will not be applied to the connectors.
Failure to do so may result in wire damage/breakage or PLC failure.
STARTUP AND
MAINTENANCE
-32DP
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.
• 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
• Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric distributor.
Other
• Do not drop the product or expose the product to strong impacts, as doing so
PLC
equipment
may cause product damage.
• Turn off the power to the PLC before connecting or disconnecting any extension
cable.Failure to do so may cause equipment failures or malfunctions.
Common grounding
Not allowed
DISPOSAL
2
) or larger.
PRECAUTIONS
• Please contact a certified electronic waste disposal company for the
environmentally safe recycling and disposal process for your device.
TRANSPORT AND
STORAGE PRECAUTIONS
• The 32DP is a precision instrument. During transportation, avoid any impact.
Verify the operations of the 32DP after transportation.
4.1 Applicable PLC
Model name
FX
Series PLC
Ver. 2.21 or later
3U
4.2 General Specifications
For the general specification, refer to the PLC main unit manual.
The FX3U PLC's general specifications except the following items are applicable to
the 32DP specifications. However, do not perform any dielectric withstand voltage
tests or insulation resistance tests on this product.
→ Refer to FX
Item
W i t h s t a n d
500V AC for 1 min
voltage
I n s u l a t i o n
5 MΩ or m o r e b y 50 0 V D C
resistance
Insulation tester
4.3 Power Supply Specifications
Item
Internal Power
145 mA at 24V DC is supplied from the internal service power
Supply
in the main unit via extension cable
4.4 Performance Specifications
Item
Transmission Type
Unit Type
Transmission Data (Maximum
Exchanged Data Length)
Maximum Number of
FX
-32DP at one PLC
3U
9.6k, 19.2k, 45.45k,
93.75k
Supported
Transmission
187.5k
speed (bps)
500k
and Bus
Length
1.5 M
3M, 6M, 12M
PROFIBUS Module ID
PROFIBUS-DP
Connector
Network
Global Control
Terminal Resistor
4.5 Maximum Bus Length and Baud Rate
The following table shows the acceptable bus length.
Maximum Bus Length = (No. of repeaters + 1) * (Bus Length / segment)
Baud Rate
(bps)
9.6k, 19.2k,
45.45k,
93.75k
187.5k
500k
1.5 M
3M, 6M, 12M
Applicability
Series User's Manual - Hardware Edition
3U
Specifications
Conformance to JEM-1021
b e t w e e n
c o m m u n i c a t i o n
connector frame and ground
terminal of PLC main unit
Description
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
Specifications
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Bus network
PROFIBUS-DP Slave
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be
• Cyclic Data : 144 Byte
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
• Acyclic Data : 140 Byte
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
8 units
other than Mitsubishi products; and to other duties.
1,200 m (3,937') / segment
•
1,000 m (3,281') / segment
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
See Section 4.5
400 m (1,312') / segment
a device or system used in purposes related to human life.
•
Before using the product for special purposes such as nuclear power, electric
200 m (656') / segment
power, aerospace, medicine or passenger movement vehicles, consult with
100 m (328') / segment
Mitsubishi Electric.
•
This product has been manufactured under strict quality control. However
"F332" hex
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.
PROFIBUS-DP network (9 pin D-SUB)
Supports SYNC, UNSYNC, FREEZE, and
UNFREEZE modes
HEAD OFFICE
Not built in.
HIMEJI WORKS
Maximum Bus Length
No repeater
1 repeater
2 repeaters
3 repeaters
1,200 m
2,400 m
3,600 m
4,800 m
(3,937')
(7,874')
(11,811')
(15,748')
1,000 m
2,000 m
3,000
4,000 m
(3,281')
(6,562')
(9,843')
(13,123')
400 m
800 m
1,200 m
1,600 m
(1,312')
(2,625')
(3,937')
(5,249')
200 m (656')
400 m (1,312')
600 m (1,969')
800 m (2,625')
100 m (328')
200 m (656')
300 m (984')
400 m (1,312')
For safe use
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310,
JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
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