MITSUBISHI ELECTRIC FX3S Series Programmable Controllers Installation Guide

MITSUBISHI ELECTRIC FX3S Series Programmable Controllers

• Installation Manual for Base Units of the FX3S Series
• Art. no.: 272691 ENG, Version B, 05052014

Safety Information

For qualified staff only

• This manual is only intended for use by properly trained and qualified electrical technicians who are fully acquainted with automation technology safety standards. All work with the hardware described, including system design, installation, setup, maintenance, service, and testing, may only be performed by trained electrical technicians with approved qualifications who are fully acquainted with the applicable automation technology safety standards and regulations.

Proper use of equipment

• The programmable controllers (PLC) of the MELSEC FX3S series are only intended for the specific applications explicitly described in this manual or the manuals listed below. Please take care to observe all the installation and operating parameters specified in the manual. All products are designed, manufactured, tested, and documented in agreement with the safety regulations. Any modification of the hardware or software or disregarding of the safety warnings given in this manual or printed on the product can cause injury to persons or damage to equipment or other property. Only accessories and peripherals specifically approved by MITSUBISHI ELECTRIC may be used. Any other use or application of the products is deemed to be improper.

Relevant safety regulations

• All safety and accident prevention regulations relevant to your specific application must be observed in the system design, installation, setup, maintenance, servicing, and testing of these products.
• In this manual special warnings that are important for the proper and safe use of the products are clearly identified as follows:

DANGER:

• Personnel health and injury warnings.
• Failure to observe the precautions described here can result in serious health and injury hazards.

CAUTION:

• Equipment and property damage warnings.
• Failure to observe the precautions described here can result in serious damage to the equipment or other property.

Further Information

• The following manuals contain further information about the modules:
• FX3S Series User’s Manual – Hardware Edition
• User’s Manuals for the various modules of the MELSEC FX3G/FX3U Series
• FX3S/FX3G/FX3GC/FX3U/FX3UC Series Programming Manual
• FX3S/FX3G/FX3GC/FX3U/FX3UC Series User’s Manual – Analog Control Edition
• These manuals are available free of charge through the internet (https://eu3a.mitsubishielectric.com).
• If you have any questions concerning the installation, configuration, or operation of the equipment described in this manual, please contact your relevant sales office or department.

Specifications

General specifications

conductive clouds of dust

Further general specifications can be found in the Hardware Manual for the MELSEC FX3S series.

Power supply specifications of the base units AC powered base units

1. When the duration of the power failure is longer than 10 ms, the PLC stops operation.
2. This item shows values when all 24 V DC service power supplies are used in the maximum configuration connectable to the main unit, and includes the input current (5 or 7 mA per point).
3. The service power is supplied from the terminals “24V” and “0V” and can be used as the power supply for switches and sensors connected to the input terminals of the PLC.

DC-powered base units

1. When the duration of the power failure is longer than 5 ms, the PLC stops operation.
2. These power consumption values are maximum values which include consumption of all expansion equipment and input current (5 or 7 mA per point).

Input specifications

•  Sink input:

NPN open collector transistor

•  Source input:

PNP open collector transistor

Input operation display| LED on panel lights when photo-coupler is driven
Input connecting type| Fixed terminal block (M3 screws)

1. not for FX3S-10M and FX3S-14M

Output specifications

Base units with relay outputs

Number of out- put points

| FX3S-10MR/ S| 4
FX3S-14MR/ S| 6
FX3S-20MR/ S| 8
FX3S-30MR/ S| 14
Circuit insulation| Mechanical insulation
Output form| Relay
Rated switching voltage| max. 30 V DC max. 240 V AC

Max. load

| Resistance load| 2 A per output

8 A per group with 4 outputs

Inductive load| 80 VA
Min. load| 5 V DC, 2 mA
Response time| OFF   ON| Approx. 10 ms
ON   OFF
Output operation display| LED lights when output is driven
Output connecting type| Fixed terminal block (M3 screws)
Number of out- put groups and output points per common terminal| FX3S-10MR/ S| 4 groups with one output each
FX3S-14MR/ S| 2 groups with one output each 1 group with 4 outputs
FX3S-20MR/ S| 4 groups with one output each 1 group with 4 outputs
FX3S-30MR/ S| 2 groups with one output each 3 groups with 4 outputs each

Max. 250 V AC when the unit does not comply with CE, UL, or cUL standards.

Base units with transistor outputs

0.8 A per group with 4 outputs

Inductive load| 12 W (24 V DC) per output

19.2 W per group with 4 outputs

Response time| OFF   ON| Y000 and Y001:   5 μs with 10 mA or more (5 to 24 V DC)

Y002 or more:   0.2 ms with 200 mA or more (at 24 V DC)

ON   OFF

Output operation display| LED lights when output is driven
Output connecting type| Fixed terminal block (M3 screws)
Number of out- put groups and output points per common terminal| FX3S-10MT/| 4 groups with one output each
FX3S-14MT/| 2 groups with one output each 1 group with 4 outputs
FX3S-20MT/| 4 groups with one output each 1 group with 4 outputs
FX3S-30MT/| 2 groups with one output each 3 groups with 4 outputs each

1. The transistor OFF time is longer under lighter loads. For example, with a load of 40 mA at 24 V DC, the response time is approx. 0.3 ms. When response performance is required under lighter loads, install a resistor in parallel with the load to increase the load current of the output.

External dimensions and weight

• All dimensions are in “mm”.

Mounting hole pitches

FX3S-14M /
FX3S-20M /| 75 mm| 67 mm| 0.40 kg
FX3S-30M /| 100 mm| 92 mm| 0.45 kg

Applicable Standard

The modules of the MELSEC FX3S series comply with the EC Directive (EMC Directive) and UL standards (UL, cUL).

Names and Functions of Parts

View with covers removed

RUN/STOP switch
6| Status LEDs| POW| ●| The power is ON.
 | The power is OFF.
RUN| ●| PLC is running.
 | PLC is stopped.
ERR| ●| CPU error
 | Program error
 | No error
7| Output indicators
8| Year and month of production
9| Model name (abbreviation)
10| DIN rail mounting hook

LED is ON, LED is flashing, LED is OFF

-2AD)
FX3S-30M /E -2AD only: Analog input terminal block
4| RUN/STOP switch
5| Connector for peripheral devices (USB)
6| Connector for peripheral devices (RS422)
7| Terminals for service power supply and outputs (Y)
8| Protective cover for terminals
9| Screw holes for the fixing of optional mounted equipment

A base unit without the original product label is not covered by the warranty.

2| Nameplate
3| DIN rail mounting groove (DIN rail: DIN 46277)
4| Screw holes for connector conversion adapter FX3S-CNV-ADP

Installation and Wiring

DANGER

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

CAUTION

• Use the product in the environment within the general specifications described in the Hardware manual or the MELSEC FX3S series.
• Never use the product in areas with dust, oily smoke, conductive dust, corrosive or 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.
• Be sure to remove the dustproof sheet from the PLC’s ventilation port when the installation work is completed. Failure to do so could cause fires, equipment failure, and malfunctions.
• Do not touch the conductive parts of the product directly.
• Install the product securely using the DIN rail or screws.
• Install the product on a flat surface to prevent twisting.
• Connect the memory cassette and expansion board securely to their designated connectors. Loose connections may cause 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, expansion boards, special adapters, memory cassette

Installation location

• Choose in accordance with the requirements a cabinet with a closed front panel, to provide the base unit from direct contact. The cabinet must be selected and installed in correspondence with local and national regulations.
• To prevent temperature rise, do not install the PLC on a floor or a ceiling or in the vertical direction. Install it horizontally on a wall as shown below.

Space in enclosure

• Extension devices can be connected on the left side of the base unit of the PLC.
• If you intend to add extension devices in the future, keep the necessary space on the left side.
• To prevent temperature rise, keep a space of 50 mm between the unit’s main body and other devices and structures.

Mounting the base unit

• A PLC of the MELSEC FX family can be mounted on a DIN rail or directly on a flat surface (e.g. cabinet back panel).

Procedures for installing to DIN rail

• The base unit has a DIN rail mounting groove on the back side of the module.
• So the base unit can be safely installed on a DIN 46277 rail (35 mm wide).
• Connect the connector conversion adapter FX3S-CNV-ADP and special adapters to the base unit.
• Expansion boards and the memory cassette can be fitted to the base unit after it is installed.
• Push out the DIN rail mounting hook (“A” in the following figure).
• Fit the upper edge of the DIN rail mounting groove onto the DIN rail.
• Lock the DIN rail mounting hooks while pressing the PLC against the DIN rail.

Installing Directly

1. Make mounting holes in the mounting surface. The product mounting hole pitches for the base units are given above. For the product mounting hole pitches of other units see the corresponding manual.
   • If you want to install further products of the FX series, position the holes so that there is a gap of 1 to 2 mm between the products.
2. Fit the base unit based on the holes, and secure it with M4 screws.

Wiring

DANGER

• When an error occurs in a relay or transistor output device an output may not be set correctly. Design external circuits and mechanisms to ensure safe operations of the machine in such a case.
• An external power supply failure or a malfunction of the PLC may result in undefined conditions. Provide a safety circuit on the outside of the PLC (e.g. emergency stop circuit, a protection circuit, an interlock circuit, etc.) to ensure safety.
• Cautions for preventing influences caused by main supply circuits and other noise sources:
• Do not bundle AC supply lines together with DC supply lines.
• Do not lay signal cables close to the main circuit, high-voltage power lines, or load lines. Otherwise, the effects of noise or surge induction are likely to take place.
• Keep a safe distance of more than 100 mm from the above when wiring.
• Use a shielded cable for transmitting analog signals.
• Fix the electric wires so that the terminal block and connected parts of the electric wires are not directly stressed.

Connection to the terminals

• For connection of the power supply and the inputs/outputs use commercially available terminal ends for M3 screws.
• Tighten the screws of the terminals to a torque of 0.5 to 0.8 Nm.
• NOTE Leave the terminals unconnected.

Power Supply Wiring

Connection of AC-powered base units

DANGER
Connect the AC power supply to the L and N terminals. If an AC power supply is connected to a DC input/output terminal or service power supply terminal, the PLC will be damaged.

Connection of DC-powered base units

Grounding

• The grounding resistance should be 100 ? or less.
• Position the grounding point as close to the PLC as possible to decrease the length of the ground wire.
• The grounding cable should have a cross-sectional area of at least 2 mm2.
• Ground the PLC independently if possible. If it cannot be grounded independently, ground it jointly as shown below.

Input wiring

Connecting sink or source devices

• The base units of the FX3S series can be used with sink or source-switching devices. The decision is made by the different connections of the “S/S” terminal.
• In the case of the sink input type, the S/S terminal is connected to the 24 V terminal of the service power supply or, when a DC-powered base unit is used, to the positive pole of the power supply.
• Sink input means that a contact wired to the input (X) or a sensor with NPN open collector transistor output connects the input of the PLC with the negative pole of the power supply.
• In the case of the source input type, the S/S terminal is connected to the 0V terminal of the service power supply or, when a DC-powered base unit is used, to the negative pole of the power supply.
• Source input means that a contact wired to the input (X) or a sensor with PNP open collector transistor output connects the input of the PLC with the positive pole of the power supply.

Examples of input types

• AC-powered base units
• DC-powered base units
• Notes for connecting input devices
• Selection of contacts
• The input current of this PLC is 5 to 7 mA for 24 V DC. Use input devices applicable to this minute current. If no-voltage contacts (switches) for large currents are used, contact failure may occur.
• Connection of input devices with a built-in series diode
• The voltage drop of the series diode should be approx. 4 V or less. When lead switches with a series LED are used, up to two switches can be connected in series.
• Also, make sure that the input current is over the input sensing level while the switches are ON.

Connection of input devices with built-in parallel resistance

• Use a device having a parallel resistance, Rp, of 15k or more. If the resistance is less than 15 k, connect a bleeder resistance R, obtained by the following formula:

Connection of 2-wire proximity switches

• Use a two-wire proximity switch whose leakage current, IL, is 1.5 mA or less when the switch is off. When the current is 1.5 mA or more, connect a bleeder resistance R, determined by the following formula:

Output wiring

• The outputs of the base units of the FX3S series are pooled into groups consisting of 1 output or 4 outputs.
• Each group has a common contact for the load voltage. These terminals are marked “COM” for base units with relais outputs or transistor outputs of the sink type and “+V” for base units with source transistor outputs. “stands for the number of the output group e. g. “COM1”.
• At the base unit the groups are separated by a broad line. The partition of the output terminals indicates the range of the outputs connected to the same common terminal (COM or +V).
• Examples of output wiring
  • Relay output
• Transistor output (sink)
  • Transistor output (source)

Notes for output wiring

• External power supply
• Relay outputs
• Use an external power supply of 30 V DC or less or 240 V AC or less for loads.
• Transistor outputs
• For driving the load, use a power supply of 5 to 30 V DC that can output current two or more times the rated current of the fuse connected to the load circuit.

Voltage drop

• The voltage drop at ON of the output transistor is approx. 1.5 V. When driving a semiconductor element, carefully check the input voltage characteristics of the applied element.

Protection of the outputs

• Protection circuit for load short-circuiting
• When a load connected to the output terminal short-circuits, the printed circuit board may be burned out.
• Fit a protective fuse on the output circuit.
• The protection circuit of contact when an inductive load is used
• When an inductive (for example a relay or a solenoid) load is connected to a DC voltage, connect a diode in parallel with the load.
• Use a diode (for commutation) having the following specifications:
• Reverse dielectric strength: 5 to 10 times the load voltage
• Forward current: Load current or more
• When an inductive load is switched by a relay output to an AC voltage,connect a surge absorbing element (CR composite part, i.e. surge killer and spark killer) in parallel with the load.
• Use a surge absorber having the following specifications:
• Rated voltage: 240 V AC
• Resistance value: 100 to 200
• Electrostatic capacity: approx. 0.1 μF

Build in Analog Inputs

The main units FX3S-30MR/ES-2AD, FX3S-30MT/ES-2AD, and FX3S-30MT/ESS- 2AD have two built-in analog voltage inputs. The automatically converted digital values are written to special data registers of the PLC.

Performance specifications

Accuracy

| Ambient temperature 25 °C 5 °C|

1,0 % ( 100 mV) for 10 V full scale

Ambient temperature 0 °C to 55 °C|

2,0 % ( 200 mV) for 10 V full scale

A/D conversion time| 180 μs (The data will be updated at every scan time of the PLC.)
 |

1020

 | 1000
Input characteristics|
|
 | Analog input [V]
Insulation method| No insulation between each channel or the PLC.
Occupied points| 0

Wiring

CAUTION

• Do not lay signal cables close to the main circuit, high-voltage power lines, or load lines. Otherwise, the effects of noise or surge induction are likely to take place. Keep a safe distance of more than 100 mm from the above when wiring.
• 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.
• Observe the following items for wiring. Ignorance of this items may cause electric shock, short circuit, disconnection, or damage to the product.
• The disposal size of the cable end should follow the dimensions described in this manual.
• Twist the end of stranded wires and make sure there are no loose wires.
• Do not solder-plate the electric wire ends.
• Connect only the electric wires of regulation size.
• Tightening of terminal block screws should follow the torque described below.
• Fix the electric wires so that the terminal block and connected parts of the electric wires are not directly stressed.

Applicable wires and terminal torque

• Use only wires with a cross-section given in the following table.

No. of wire per terminal| Cross section [mm 2]
---|---
Solid wire| Stranded wire| Ferrules with plastic sleeve
1| 0.14 to 1.5| 0.14 to 1.0| 0.25 to 0.5
2| 0.14 to 0.5| 0.14 to 0.2| —

• The tightening torque must be 0.22 to 0.25 Nm.

Termination of wire end

• Strip the coating of stranded wire and twist the cable core before connecting it, or strip the coating of single wire before connecting it.
• When using a stick terminal with insulating sleeve, the outside dimensions must correspond to the measurements given in the following figure.

Terminal layout

Connection of the input signals

NOTES

• “V+” in the above figure represents the terminals of one channel e. g. V1+.
• Use a 2-core shielded twisted pair cable for the analog input lines, and separate the analog input lines from other power lines or inductive lines.
• When a channel is not used for the measurement of analog signals, make sure to connect the “V+” terminal with the “V-” terminal.
• Mitsubishi Electric Europe B.V. /// FA – European Business Group ///
• Germany /// Tel.: +49(0)2102-4860 /// Fax: +49(0)2102-4861120 ///
• https://eu3a.mitsubishielectric.com .

Documents / Resources

| MITSUBISHI ELECTRIC FX3S Series Programmable Controllers [pdf] Installation Guide
FX3S Series, FX3S Series Programmable Controllers, Programmable Controllers, Controllers
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