Mitsubishi Electric FR-A701 Instruction sheet

INVERTER
EMC Installation
Guidelines
FR-A700
FR-A701
FR-F700
FR-E700
FR-D700
BCN-A21041-204-C(E)(1303)MEE Printed in Japan

A - 1
In this EMC Installation Guidelines, handling and precautions for compliance with the EC EMC Directive
are explained. Incorrect handling might cause an unexpected fault. Before using an inverter, always
read this EMC Instruction Guidelines carefully to use the equipment to its optimum performance.
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter until you have read
through the EMC Instruction Guidelines and appended documents carefully and can use
the equipment correctly. Do not use this product until you have a full knowledge of the
equipment, safety information and instructions.
In this EMC Installation Guidelines, the safety instruction levels are classified into
"WARNING" and "CAUTION".
WARNING
Incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION
Incorrect handling may cause hazardous conditions, resulting in
medium or slight injury, or may cause only material damage.
The CAUTION level may even lead to a serious consequence according to conditions.
Both instruction levels must be followed because these are important to personal safety.
CAUTION LARGE LEAKAGE CURRENT
When an EMC filter is used, leakage current flows through the EMC filter.
Ground (earth) the EMC filter before connecting the power supply to prevent an
electric shock.
General instruction
Many of the diagrams and drawings in this guideline show the inverter without a cover
or partially open for explanation. Never operate the inverter in this manner. The cover
must be always reinstalled, and the instruction in this guideline must be followed when
operating the inverter.

Contents
1. Introduction ............................................................................................................ 1-1
2. Compliance to the EMC Directive of the inverter ................................................... 2-1
3. EMC measures ...................................................................................................... 3-1
3. 1 Basics of the EMC measures....................................................................... 3-1
3. 2 Precaution for inverter mounting to the enclosure ....................................... 3-2
3. 3 Precaution for wiring .................................................................................... 3-4
3. 4 Others precautions....................................................................................... 3-8
4. EMC measure options ........................................................................................... 4-1
4.1 EMC Directive compliant EMC filter.............................................................. 4-1
4.2 Other precautions ......................................................................................... 4-4
4.3 List of the EMC Directive compliant filters and their applicable inverters...... 4-7
5. EMC data............................................................................................................... 5-1
FR-A720............................................................................................................... 5-1
FR-A740............................................................................................................... 5-9
FR-A741............................................................................................................... 5-21
FR-F720............................................................................................................... 5-28
FR-F740............................................................................................................... 5-36
FR-E720............................................................................................................... 5-48
FR-E740............................................................................................................... 5-55
FR-E720S ............................................................................................................ 5-61
FR-D720 .............................................................................................................. 5-65
FR-D740 .............................................................................................................. 5-70
FR-D720S ............................................................................................................ 5-76

1 - 1
1. Introduction
This EMC Guidelines offers information on the Electromagnetic Compatibility (EMC)
measures when using the Mitsubishi inverters. The following subjects are explained in
this guideline.
How we interpret the EMC Directive for the use of inverters is explained in Chapter 2.
The EMC measures for using a Mitsubishi inverter is explained in Chapter 3 in detail. It
includes explanations regarding enclosure specification, grounding (earthing), wiring
and installation in the enclosure.
Model names and specifications of the EMC measure options, which are explained in
Chapter 3, are explained in Chapter 4.
The EMC data collected by Mitsubishi is explained in Chapter 5.
Follow this EMC Guidelines when similar explanation regarding EMC measures exists
in an Inverter Instruction Manual.
●List of applicable inverters
FR-A720FR-A700 series
FR-A740
FR-A701 series FR-A741
FR-F720FR-F700 series
FR-F740
FR-E720
FR-E740
FR-E700 series
FR-E720S
FR-D720
FR-D740
FR-D700 series
FR-D720S

2 - 1
2. Compliance to the EMC Directive of the inverter
A general-purpose inverter is not designed to operate by itself, but is a component
designed to be installed in a control enclosure in combination with other devices to
operate a machine or equipment.
Many organizations including the European Committee of Manufacturers of Electrical
Machines and Power Electronics (CEMEP) interpreted that components were not
directly subject to the EMC Directive under the EMC Directive (89/336/EEC).
However, under the amended EMC Directive (2004/108/EC), components are
required to conform with the EMC Directive.
Mitsubishi performs assessment on major models for the conformity with the EMC
Directive under the conditions described in this guideline and declares that the
models conform with the EMC Directive (2004/108/EC). Mitsubishi cannot, however,
declare the conformity of an inverter in your operating conditions. EMC changes by
the enclosure structure that contains the inverter, compatibility with other embedded
electronic devices, wiring, and placement. For this reason, ensure that the entire
machine or the system conforms with the EMC Directive.
Installation methods and EMC measure options are recommended in this guideline
so that the machine or the system that is containing an inverter can conform with the
EMC Directive easier. (To comply with the EMC Directive in the environment
described in Chapter 5, the installation method and the EMC measure option, which
are explained in Chapter 5, must be used.)
＜Supplementary information＞
●EC Directives and CE marking
The EC Directives are issued by the Council of the European Union to standardize
different national regulations of the EU Member States and to facilitate free movement
of the equipment whose safety is ensured. CE marking (affixation of the CE marking) is
required to distribute the products subject to the EC Directives in the EU territory.
When the manufacturer or his authorized representative does not comply with these
requirements, (1) a fine, (2) withdrawal from the market, and (3) prohibition of the free
movement of the product are imposed.
● EMC Directive (89/336/EEC)
The EMC Directive is one of the EC Directives. The EMC Directive requires products not to
generate excessive electromagnetic disturbance to outside (emission or electromagnetic
interference) and to have immunity to the external electromagnetic disturbance from outside
(immunity or electromagnetic susceptibility). The applicable products are required to bear
CE marking.
Affixation of the CE marking on the products, which conform with the EMC Directive, has
been required since January 1, 1996. It was repealed on July 20, 2007, and it will be
prohibited to market a product in compliant with the provisions of this EMC Directive after
July 20, 2009.

2 - 2
●EMC Directive (2004/108/EC)
The new Directive was issued on December 15, 2004 by reviewing the provisions in the
EMC Directive (89/336/EEC) issued on May 3, 1998. The new Directive has been
effective since July 20, 2007. Main changes from the EMC Directive (89/336/EEC) are
the following.
(1) Defining the applicable scope (exclusion of fixed installation)
(2) Simplifying the method to declare conformity (Self-declaration due to the
discontinuation of declaration through the Competent Body.)
(3) Reinforcing the submission of traceability information
(4) Obligating the production of technical documentation
(5) Reinforcing the market monitoring
●European Standards (EN)
To affix CE marking on a product as defined in the EC Directives, the product must
conform with the applicable regulation of the European Standards, and appropriate
measures must be taken to ensure the safety of the product.
The European Standards was constituted to remove trade barriers for the people, goods,
capital and service in Europe, which had received increased interest since the EC market
integration in 1992. European Standards are harmonized standards that tries to
standardize different standards, codes and assessment system.
The following European Standard applies to the EMC Directive for the adjustable speed
electrical power drive system including an inverter.
EN61800-3:EMC requirements and specific test methods
Mitsubishi inverter is capable of conforming with the Second environment/Restricted
distribution of above standard by practicing the EMC measures stated on the following pages.
(Refer to page 1-1 for the applicable inverters.)

2 - 3
●Declaration of conformity and technical documentation
Declaration of conformity
To affix CE marking on a product, the "technical documentation," which states that the product
conforms with the EMC Directive, is required. In most cases, the manufacturer, which
declares the conformity, is not required to submit the declaration to a third party, and only
required to hold the declaration. However, when discontinuing production of a product, the
manufacturer or the authorized representative in the EU must hold the declaration of
conformity and the technical documentation for at least ten years after the date the product
was last manufactured.
Technical documentation
The manufacturer or the authorized representative in the EU of the applied product is required
to draw up technical documentation stating that the product is being produced with
conformance and to hold the technical documentation. In this technical documentation, EMC
assessment data and condition as well as the technical explanation for the EMC are included.
The technical documentation must be updated so that it can be submitted to the EU authorities
when requested.

3 - 1
3. EMC measures
3. 1 Basics of the EMC measures
EMC (Electromagnetic compatibility) means both emissions and immunity as shown
below.
·
·
*EMC
(Electromagnetic
compatibility)
Emissions (EMI)
(Electromagnetic
interference)
Immunity (EMS)
(Electromagnetic
susceptibility)
Radiated interference
Conducted interference
Electrostatic discharge immunity
Radio frequency electromagnetic field immunity
Electrical fast transient/burst immunity
etc.
Note * EMC is a capability of a device or a system to operate as commanded without
receiving or giving influence of electromagnetic field and without performance loss or
fault when the device or the system starts the operation at the commanded position.
The measures described in this guideline are primarily intended to control emissions,
but they are also effective in increasing immunity.
Various EMC measures exists, but main measures are the following. EMC measures
become effective by applying the following measures.
(1) Install equipment in a closed metal enclosure. (Keep the radiant interference
inside. )
(2) Use an EMC filter (Reduce conducted interference.)
(3) Ground (earth) securely (Avoid causing antenna effect.)
(4) Shield the power cable and the control cable. (Keep the radiant interference
inside.)
(5) Keep the equipment away from the interference source, or install the interference
source in a separate enclosure. (Keep the radiant interference inside.)
(6) Isolate the circuits.( Cut the conducted interference.)
(7) Change the inverter parameter settings. (Reduces generated interference and
disturbance effect)
EMC measures are explained in detail on the following pages.

3 - 2
3. 2 Precaution for inverter mounting to the enclosure
Enclosure design and layout are important points for controlling EMC. Perform
installation by considering the following points.
(1) Use a metal enclosure.
(2) Use EMI gasket or other conductive packing to where the enclosure door touches
the enclosure body. Using a short thick rectangular wire to connect the door to the
body is another effective measure.
Enclosure
Metal enclosure
The part of the enclosure that
the EMI gasket touches
should be conductive.
EMI gasket
(3) It is recommended to
use the inverter with the EMC filter, which is already embedded
or available as an option. When using an option EMC filter, mask the painting or
plate the area of the enclosure where the EMC filter is mounted so that the electrical
connection can be established between the EMC filter and the ground (earth) of the
enclosure. Confirm that the EMC filter is securely fitted to the enclosure surface.
Confirm that the equipment mounting board inside the enclosure is also connected
to the ground (earth).
EMC
Mounting enclosure surface
Mask the painting or
plate the area.

3 - 3
(4) Weld or screw the main board, side boards and such without leaving space. The
space between each connecting section (welding section or screws) should be less
than 10cm. If the space exists between boards, the shielding effect may be lost. The
dimension of holes in the enclosure, such as ventilation holes, should be less than
10cm. Holes larger than that should be covered with metal board or punching metal.
When using these material, ensure not to loose the electric connection by using
anti-conductive metal or material. One faulty example of this is a connection
between painted areas.
enclosure
Metal board or
punching metal
Mask the painting
* The connection should be
conductive. Connection
between painted area is invalid.
(5) Use a thick short wire to connect the earth terminal of the control device to the earth
terminal of the enclosure.
(6) Use a thick short wire to ground (earth) the enclosure.
(7) Using separate enclosures for the driving device including an inverter and for the
signal controlling device provide more effective EMC measure.