Mitsubishi Electric MELSEC iQ-F Series User manual

MELSEC iQ-F
FX5UC User's Manual (Hardware)

SAFETY PRECAUTIONS
(Read these precautions before use.)
Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay
full attention to safety in order to handle the product correctly.
This manual classifies the safety precautions into two categories: [ WARNING] and [ CAUTION].
WARNING
Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION
Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.
Depending on the circumstances, procedures indicated by [ CAUTION] may also cause severe
injury. It is important to follow all precautions for personal safety.
Store this manual in a safe place so that it can be read whenever necessary. Always forward it to the end user.
[DESIGN PRECAUTIONS]
WARNING
●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 forward 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 machine 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 machine operation.
●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, forced output and operation status change) of the PLC in operation.
Otherwise, the machine may be damaged and accidents may occur due to erroneous operations.
●In an output circuit, when a load current exceeding the current rating or an overcurrent caused by
a load short-circuit flows for a long time, it may cause smoke and fire. To prevent this, configure an
external safety circuit, such as a fuse.
●For the operating status of each station after a communication failure of the network, refer to relevant
manuals for the network. Incorrect output or malfunction may result in an accident.

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[DESIGN PRECAUTIONS]
CAUTION
●When an inductive load such as a lamp, heater, or solenoid valve is controlled, a large current
(approximately ten times greater than normal) may flow when the output is turned from off to on.
Take proper measures so that the flowing current does not exceed the value corresponding to the
maximum load specification of the resistance load.
●After the CPU module is powered on or is reset, the time taken to enter the RUN status varies
depending on the system configuration, parameter settings, and/or program size.
Design circuits so that the entire system will always operate safely, regardless of this variation in time.
●Simultaneously turn on and off the power supplies of the CPU module and extension modules.
●If a long-time power failure or an abnormal voltage drop occurs, the PLC stops, and output is
turned off. When the power supply is restored, it will automatically restart (when the
RUN/STOP/RESET switch is on RUN side).
[INSTALLATION PRECAUTIONS]
WARNING
●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.
●Use the product within the generic environment specifications described in Page 17 Generic
Specifications of this manual.
Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas
(salt air, Cl2, H2S, SO2or 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.
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[INSTALLATION PRECAUTIONS]
CAUTION
●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.
●For product supplied together with a dust proof sheet, the sheet should be affixed to the ventilation
slits before the installation and wiring work in order to block foreign objects such as cutting and
wiring debris.
However, when the installation work is completed, make sure to remove the sheet to provide
adequate ventilation. 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.
●Connect the expansion adapter securely to their designated connectors. Loose connections may
cause malfunctions.
●Work carefully when using a screwdriver during product installation. Failure to do so may cause
damage to the product or accidents.
●Connect the extension cables, peripheral device cables, input/output cables and battery connecting cable
securely to their designated connectors. Loose connections may cause malfunctions.
●When using an SD memory card, insert it into the SD memory card slot. Check that it is inserted
completely. Poor contact may cause malfunction.
●Turn off the power to the PLC before attaching or detaching the following devices. Failure to do so
may cause device failures or malfunctions.
- Peripheral devices and expansion adapter
- Extension modules, bus conversion module and connector conversion module
- Battery
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[WIRING PRECAUTIONS]
WARNING
●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 temperature rating of the cable should be 80 or more.
●Make sure to wire the screw 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.
- Wire terminals should follow the dimensions described in the manual.
- Tightening torque should follow the specifications in the manual.
- Tighten the screws using a Phillips-head screwdriver No. 2 (shaft diameter 6 mm (0.24") or less).
Make sure that the screwdriver does not touch the partition part of the terminal block.
●Make sure to wire 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.
- Wire terminals 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.
[WIRING PRECAUTIONS]
CAUTION
●Perform class D grounding (grounding resistance: 100 Ωor less) of the grounding terminal on the
CPU module and extension modules with a wire 2 mm2or thicker.
However, do not use common grounding (refer to Page 56 Grounding) with heavy electrical
systems.
●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 cause damage to the product.
●Install module so that excessive force will not be applied to terminal blocks, power connectors, I/O
connectors, communication connectors, or communication cables. Failure to do so may result in
wire damage/breakage or PLC failure.
4

CAUTION
●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 connection cables at least 100 mm (3.94") away from the main circuit,
high-voltage line, load line or power line.
- Ground the shield of the shield wire or shielded cable at one point on the PLC. However, do not
use common grounding with heavy electrical systems.
- Ground the shield of the analog input/output cable at one point on the signal receiving side. Do
not use common grounding with heavy electrical systems.
[STARTUP AND MAINTENANCE PRECAUTIONS]
WARNING
●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 may cause electric shock.
●Before modifying the program in mid-operation, forcing 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 this manual.
- 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 force (vibration, impact, drop, etc.) to the battery.
- 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.
Incorrect handling of the battery may cause excessive heat, bursting, ignition, liquid leakage or
deformation, and lead to injury, fire or failures and malfunction of facilities and other equipment.
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[STARTUP AND MAINTENANCE PRECAUTIONS]
CAUTION
●Do not disassemble or modify the PLC. Doing so may cause fire, equipment failures, or malfunctions.
*For repair, contact your local Mitsubishi Electric representative.
●After the first use of the SD memorycard,do not insert/remove the memorycard more than 500 times.
Insertion/removal 500 times or more may cause malfunction.
●Turn off the power to the PLC before connecting or disconnecting any extension cable. Failure to do
so may cause device failures or malfunctions.
●Turn off the power to the PLC before attaching or detaching the following devices. Failure to do so
may cause device failures or malfunctions.
- Peripheral devices and expansion adapter
- Extension modules, bus conversion module and connector conversion module
- Battery
[OPERATION PRECAUTIONS]
CAUTION
●Construct an interlock circuit in the program to ensure safe operation for the whole system when
executing 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,
forced output and operation status change) of the PLC in operation. Otherwise, the machine may be
damaged and accidents may occur by erroneous operations.
[DISPOSAL PRECAUTIONS]
CAUTION
●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 Page 140 Handling of Batteries and
Devices with Built-in Batteries in EU Member States.
6

[TRANSPORTATION PRECAUTIONS]
CAUTION
●When transporting the PLC with the optional battery, turn on the PLC before shipment, confirm that
the battery mode is set in PLC parameters 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 lost during transportation.
●The PLC is a precision instrument. During transportation, avoid impacts larger than those specified
in the general specifications ( Page 17 Generic Specifications) 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 Page 140 Handling of Batteries and Devices with Built-in Batteries in EU
Member States.
●Fumigants that contain halogen materials such as fluorine, chlorine, bromine, and iodine used for
disinfecting and protecting wooden packaging from insects will cause malfunction in Mitsubishi
products. Please take necessary precautions to ensure that residual fumigants do not enter the
product, or treat packaging with methods other than fumigation (heat method). Additionally,
disinfect and protect wood from insects before packing.
INTRODUCTION
This manual contains text, diagrams and explanations which will guide the reader in the correct installation, safe use and
operation of the FX5UC Programmable Controllers and should be read and understood before attempting to install or use
the module.
Always forward it to the end user.
Regarding use of this product
• 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 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.
Note
• If in doubt at any stage during the installation of the product, always consult a professional electrical engineer who is
qualified and trained in the local and national standards. If in doubt about the operation or use, please consult the nearest
Mitsubishi Electric representative.
• Since the examples indicated by this manual, technical bulletin, catalog, etc. are used as a reference, please use it after
confirming the function and safety of the equipment and system. Mitsubishi Electric will accept no responsibility for actual
use of the product based on these illustrative examples.
• This manual content, specification etc. may be changed, without a notice, for improvement.
• The information in this manual has been carefully checked and is believed to be accurate; however, if you notice a
doubtful point, an error, etc., please contact the nearest Mitsubishi Electric representative. When doing so, please provide
the manual number given at the end of this manual.
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