Mitsubishi Electric FR-A872-P User manual

INVERTER
INVERTER A800 FR-A872-P INSTRUCTION MANUAL (HARDWARE)
A
HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
IB(NA)-0600913ENG-A(2002)MEE Printed in Japan Specifications subject to change without notice.
A800
FR-A872-P (SEPARATED CONVERTER TYPE FOR PARALLEL OPERATION)
INSTRUCTION MANUAL (HARDWARE)
FR-A872-05690 to 07150-P
High functionality and high performance

1
CONTENTS
Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.1 Product checking and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.2 Inverter component names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.3 About the related manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 2 INSTALLATION AND WIRING . . . . . . . . . . . . . . . . . . . 18
2.1 Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1.1 Inverter and peripheral devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1.2 Peripheral devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.2 Removal and reinstallation of the operation panel or the front covers. . . . . . . . . . . . . . . . . . . 23
2.3 Installation of the inverter and enclosure design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.3.1 Inverter installation environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.3.2 Amount of heat generated by the inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.3.3 Cooling system types for inverter enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.3.4 Inverter installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.4 Terminal connection diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.5 Main circuit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.5.1 Details on the main circuit terminals of the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.5.2 Details on the main circuit terminals of the converter unit (FR-CC2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.5.3 Terminal layout of the main circuit terminals, wiring of power supply and the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.5.4 Recommended cables and wiring length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.5.5 Earthing (grounding) precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.6 Control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.6.1 Details on the control circuit terminals of the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.6.2 Details on the control circuit terminals of the converter unit (FR-CC2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2.6.3 Control logic (sink/source) change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2.6.4 Wiring of inverter control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
2.6.5 Wiring precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
2.6.6 When using separate power supplies for the control circuit and the main circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2.6.7 When supplying 24 V external power to the control circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
2.6.8 Safety stop function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
2.7 Communication connectors and terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
2.7.1 PU connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
2.7.2 USB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
2.7.3 RS-485 terminal block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
2.8 Connection to a motor with encoder (Vector control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
2.9 Parameter settings for a motor with encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

2
Chapter 3 PRECAUTIONS FOR USE OF THE INVERTER . . . . . 78
3.1 Electro-magnetic interference (EMI) and leakage currents . . . . . . . . . . . . . . . . . . . . . . . . . . .78
3.1.1 Leakage currents and countermeasures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
3.1.2 Techniques and measures for electromagnetic compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.1.3 Converter unit (FR-CC2) built-in EMC filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
3.2 Power supply harmonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
3.2.1 Power supply harmonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
3.3 Power shutdown and magnetic contactor (MC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
3.4 Countermeasures against deterioration of the 690 V class motor insulation . . . . . . . . . . . . . .85
3.5 Checklist before starting operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
3.6 Failsafe system which uses the inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Chapter 4 PROTECTIVE FUNCTIONS. . . . . . . . . . . . . . . . . . . . . 94
4.1 Inverter fault and alarm indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
4.2 Reset method for the protective functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
4.3 Check and clear of the fault history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
4.4 List of fault displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Chapter 5 PRECAUTIONS FOR MAINTENANCE AND
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.1 Inspection item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
5.1.1 Daily inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.1.2 Periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.1.3 Daily and periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
5.1.4 Checking the inverter and converter semiconductor devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
5.1.5 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
5.1.6 Replacement of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
5.1.7 Removal and reinstallation of the control circuit terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5.2 Measurement of main circuit voltages, currents, and powers . . . . . . . . . . . . . . . . . . . . . . . .109
5.2.1 Measurement of powers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5.2.2 Measurement of voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5.2.3 Measurement of currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.2.4 Example of measuring converter unit (FR-CC2) input power factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.2.5 Measurement of converter output voltage (between terminals P and N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.2.6 Measurement of inverter output frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.2.7 Insulation resistance test using megger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.2.8 Withstand voltage test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

3
CONTENTS
Chapter 6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
6.1 Inverter rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
6.2 Common specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
6.3 Outline dimension drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Chapter 7 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
7.1 Instructions for compliance with the EU Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
7.2 Instructions for EAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
7.3 Restricted Use of Hazardous Substances in Electronic and Electrical Products. . . . . . . . . . 128
7.4 Referenced Standard
(Requirement of Chinese standardized law) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

4
Safety instructions
Thank you for choosing Mitsubishi Electric inverter.
This Instruction Manual describes handling and cautions about the hardware, such as installation and wiring, for the FR-A872-
P (separated converter type for parallel operation) inverter that are different from the FR-A800.
Information about the software, such as basic operations and parameters, is described in the FR-A870 Instruction Manual
(Function) on the CD-ROM enclosed with the product. For information about the parameters and restrictions on the parallel
operation specifications, refer to the Parallel Operation Function Manual in the enclosed CD-ROM. In addition to this manual,
read all the relevant instruction manuals on the enclosed CD-ROM carefully to ensure proper use. Do not use this product until
you have full knowledge of this product's workings, safety information and instructions.
Please forward this Instruction Manual to the end user.
Do not attempt to install, operate, maintain or inspect this product until you have read the Instruction Manuals and
supplementary documents carefully. Do not use this product until you have full knowledge of this product mechanism, safety
information and instructions.
Installation, operation, maintenance and inspection must be performed by qualified personnel. Here, qualified personnel means
a person who meets all the following conditions:
• A person who possesses a certification in regard with electric appliance handling, or person took a proper engineering
training. Such training may be available at your local Mitsubishi Electric office. Contact your local sales office for schedules
and locations.
• A person who can access operating manuals for the protective devices (for example, light curtain) connected to the safety
control system, or a person who has read these manuals thoroughly and familiarized themselves with the protective
devices.
In this Instruction Manual, the safety instruction levels are classified into "WARNING" and "CAUTION".
Note that even the level may lead to a serious consequence depending on conditions. Be sure to follow the
instructions of both levels as they are critical to personnel safety.
WARNING
CAUTION
Incorrect handling may cause hazardous conditions, resulting in death or severe injury.
Incorrect handling may cause hazardous conditions, resulting in medium or slight injury,
or may cause only material damage.

5
Electric shock prevention
Fire prevention
Injury prevention
WARNING
Do not remove the front cover or the wiring cover while the power of this product is ON, and do not run this product with
the front cover or the wiring cover removed as the exposed high voltage terminals or the charging part of the circuitry
can be touched. Otherwise you may get an electric shock.
Even if power is OFF, do not remove the front cover except for wiring or periodic inspection as the inside of this product
is charged. Otherwise you may get an electric shock.
Before wiring or inspection, check that the LED display of the operation panel is OFF. Any person who is involved in
wiring or inspection shall wait for 10 minutes or longer after the power supply has been cut off, and check that there are
no residual voltage using a digital multimeter or the like. The capacitor is charged with high voltage for some time after
power OFF, and it is dangerous.
Be sure to earth (ground) the inverter. Earthing (grounding) must conform to the requirements of national and local safety
regulations and electrical code (NEC section 250, IEC 61140 class 1 and other applicable standards).
Any person who is involved in wiring or inspection of this product shall be fully competent to do the work.
This product body must be installed before wiring. Otherwise you may get an electric shock or be injured.
Do not touch the setting dial or keys with wed hands. Doing so may cause an electric shock.
Do not subject the cables to scratches, excessive stress, heavy loads or pinching. Doing so may cause an electric shock.
Do not change the cooling fan while power is ON as it is dangerous.
Do not touch the printed circuit board or handle the cables with wet hands. Doing so may cause an electric shock.
CAUTION
This product must be installed on a nonflammable wall without holes in it so that its components cannot be touched from
behind. Installing it on or near flammable material may cause a fire.
If this product becomes faulty, the product power must be switched OFF. A continuous flow of large current may cause
a fire.
Be sure to perform daily and periodic inspections as specified in the Instruction Manual. There is a possibility of
explosion, damage, or fire if this product is used without inspection.
CAUTION
The voltage applied to each terminal must be as specified in the Instruction Manual. Otherwise an explosion or damage
may occur.
The cables must be connected to the correct terminals. Otherwise an explosion or damage may occur.
The polarity (+ and -) must be correct. Otherwise an explosion or damage may occur.
While power is ON or for some time after power-OFF, do not touch this product as it will be extremely hot. Doing so may
cause burns.

6
Additional instructions
The following instructions must be also followed. If this product is handled incorrectly, it may cause unexpected fault,
an injury, or an electric shock.
CAUTION
Transportation and installation
To prevent injury, wear cut-resistant gloves when opening packaging with sharp tools.
Use proper lifting techniques or a trolley when carrying products. Failure to do so may lead to injuries.
Do not stand or place any heavy object on this product.
Do not stack the boxes containing this product higher than the number recommended.
When carrying this product, do not hold it by the front cover. It may fall or break.
During installation, caution must be taken not to drop this product as doing so may cause injuries.
The product must be installed on a surface that withstands the weight of the product.
Do not install this product on a hot surface.
Ensure the mounting orientation of this product is correct.
Ensure this product is mounted securely in its enclosure.
Do not install or operate this product if it is damaged or has parts missing.
Foreign conductive objects must be prevented from entering this product. That includes screws and metal fragments or
other flammable substance such as oil.
As this product is a precision instrument, do not drop or subject it to impact.
The surrounding air temperature must be between -10°C and +40°C (non-freezing). Otherwise this product may be
damaged.
The ambient humidity must be 95% RH or less (non-condensing) for this product. Otherwise this product may be
damaged. (Refer to page 26 for details.)
The temporary storage temperature (applicable to a short limited time such as a transportation time) must be between -
20°C and +65°C. Otherwise this product may be damaged.
This product must be used indoors (without corrosive gas, flammable gas, oil mist, dust and dirt). Otherwise this product
may be damaged.
This product must not be used at an altitude above 4000 m. The maximum amplitude amount must be 0.075 mm
(frequency range: 10 to 57 Hz), and the maximum acceleration speed must be 1G (frequency range: 57 to 150 Hz).
Otherwise this product may be damaged. (Refer to page 26 for details.)
If halogens (including fluorine, chlorine, bromine, and iodine) contained in fumigants for wood packages enter this
product, the product may be damaged. Prevent the entry of fumigant residuals or use an alternative method such as heat
disinfection. Note that sterilization or disinfection of wood packages should be performed before packing the product.
Wiring
Do not install a power factor correction capacitor, surge absorber, or radio noise filter on the output side of this product.
These devices may overheat or burn out.
The output of this product (output terminals U, V, W) must be correctly connected to a motor. Otherwise the motor will
rotate inversely.
Test operation
Before starting the test operation, confirm or adjust the parameter settings. Failure to do so may cause some machines
to make unexpected motions.

7
WARNING
Usage
Depending on the function settings of this product, the product does not stop its output even when the STOP/RESET
key on the operation panel is pressed. To prepare for it, provide a separate circuit and switch (to turn OFF the power of
this product, or apply a mechanical brake, etc.) for an emergency stop.
Be sure to turn OFF the start (STF/STR) signal before clearing the fault as this product will restart the motor suddenly
after a fault is cleared.
Use only a three-phase induction motor as a load on this product. Connection of any other electrical equipment to the
output of this product may damage the equipment.
Performing pre-excitation (by using the LX or X13 signal) during torque control (under Real sensorless vector control)
may rotate a motor at a low speed even though a start command (STF or STR) is not given. This product with the start
command ON may also rotate the motor at a low speed when the speed limit value is set to zero. Confirm that the motor
running does not cause any safety problems before performing pre-excitation.
Do not modify this product.
Do not remove any part which is not instructed to be removed in the Instruction Manuals. Doing so may lead to a failure
or damage of this product.

8
CAUTION
Usage
The electronic thermal O/L relay function may not be enough for protection of a motor from overheating. It is
recommended to install an external thermal relay or a PTC thermistor for overheat protection.
Do not repeatedly start or stop this product with a magnetic contactor on its input side. Doing so may shorten the life of
this product.
Use a noise filter or other means to minimize electromagnetic interference with other electronic equipment used nearby
this product.
Appropriate precautions must be taken to suppress harmonics. Otherwise harmonics in power systems generated from
this product may heat/damage a power factor correction capacitor or a generator.
To drive a 690 V class motor with this product, use an insulation-enhanced motor, or take measures to suppress surge
voltage. Otherwise surge voltage, which is attributed to the length and thickness of wire, may occur at the motor
terminals, causing the motor insulation to deteriorate.
As all parameters return to their initial values after the Parameter clear or All parameter clear is performed, the needed
parameters for this product operation must be set again before the operation is started.
This product can be easily set for high-speed operation. Therefore, consider all things related to the operation such as
the performance of a motor and equipment in a system before the setting change.
This product's brake function cannot be used as a mechanical brake. Use a separate device instead.
Perform an inspection and test operation of this product if it has been stored for a long period of time.
To avoid damage to this product due to static electricity, static electricity in your body must be discharged before you
touch this product.
Emergency stop
A safety backup such as an emergency brake must be provided for devices or equipment in a system to prevent
hazardous situations from occurring in case of failure of this product or an external device controlling this product.
If the breaker installed on the input side of this product trips, check for wiring faults (such as short circuits) and damage
to internal parts of this product, etc. Identify and remove the cause of the trip before resetting the tripped breaker (or
before applying the power to this product again).
When any protective function is activated, take an appropriate corrective action before resetting this product to resume
the operation.
Maintenance, inspection and parts replacement
Do not carry out a megger (insulation resistance) test on the control circuit of this product. Doing so will cause failure.
Disposal
This product must be treated as industrial waste.

9
Application of caution labels
Caution labels are used to ensure safety during use of Mitsubishi Electric inverters.
Apply the following label to the inverter if the "automatic restart after instantaneous power failure" has been enabled.
For automatic restart after instantaneous power failure
Stay away from the motor and machine.
They will start suddenly (after reset time
has elapsed) when instantaneous
power failure occurs.
CAUTION
Automatic Restart after
Instantaneous Power Failure
Has Been Selected
General instruction
For clarity, illustrations in this Instruction Manual may be drawn with covers or safety guards removed. Ensure all covers
and safety guards are properly installed prior to starting operation.

10
MEMO

11
CHAPTER 1
CHAPTER 1
4
5
6
7
8
9
10
INTRODUCTION
1.1 Product checking and accessories .........................................................................................................................13
1.2 Inverter component names .....................................................................................................................................15
1.3 About the related manuals......................................................................................................................................16

12 1. INTRODUCTION
1INTRODUCTION
The contents described in this chapter must be read before using this product.
Always read the instructions before use.
Abbreviations
Notes on descriptions in this Instruction Manual
• Connection diagrams in this Instruction Manual appear with the control logic of the input terminals as sink logic, unless
otherwise specified. (For the control logic, refer to page 53.)
• Descriptions in this Instruction Manual assume 6-phase rectification. For 12-phase rectification, the FR-A8CW (wire
connection attachment) is required. For the installation method of the FR-A8CW and the wiring method for 12-phase
rectification, refer to the Option Installation Manual.
Item Description
DU Operation panel (FR-DU08)
Operation panel Operation panel (FR-DU08) and LCD operation panel (FR-LU08)
Parameter unit Parameter unit (FR-PU07)
PU Operation panel and parameter unit
Inverter Mitsubishi Electric FR-A802-P inverter (separated converter type for parallel operation)
Converter unit FR-CC2-P converter unit (for parallel operation)
Vector control compatible option FR-A8AP/FR-A8AL/FR-A8APA (plug-in option), FR-A8TP (control terminal option)
Pr. Parameter number (Number assigned to function)
PU operation Operation using the PU (operation panel / parameter unit)
External operation Operation using the control circuit signals
Combined operation Combined operation using the PU (operation panel / parameter unit) and External operation

13
1. INTRODUCTION
1.1 Product checking and accessories
1
2
3
4
5
6
7
8
9
10
1.1 Product checking and accessories
Unpack the product and check the rating plate and the capacity plate of the inverter to ensure that the model is as ordered and
the product is intact.
Inverter model
*1 Specification differs by the type as follows.
*2 Conforming to IEC 60721-3-3 3C2/3S2
How to read the SERIAL number
Rating plate example
Input rating
Output rating
SERIAL
Inverter model
,1387;;;;;
02'(/)5$3
287387;;;;;
6(5,$/;;;;;;;;;
0$'(,1;;;;;
Country of origin
Rating plate (575 VAC input)
Rating plate (690 VAC input)
F R - A 8 7 2 - 05690 - 1 - 60 P
690V class
Symbol Voltage class
7
CA
Symbol Type *1
FM
2
1
Symbol SymbolCircuit board coating *2
With
With
Plated conductor Function
Parallel operation
With
Without
06
60
Symbol Description
05690 to 07150 SLD rated
inverter current (A)
Symbol Structure, functionality
Separated converter type 2
P
Type Monitor output
Initial setting
Control logic Rated
frequency
Pr.19 Base frequency
voltage
FM (terminal FM
equipped model)
Terminal FM (pulse train output)
Terminal AM (analog voltage output (0 to ±10 VDC)) Sink logic 60 Hz 9999 (same as the power
supply voltage)
CA (terminal CA
equipped model)
Terminal CA (analog current output (0 to 20 mADC))
Terminal AM (analog voltage output (0 to ±10 VDC)) Source logic 50 Hz 8888 (95% of the power
supply voltage)
The SERIAL consists of one symbol, two characters indicating the production year
and month, and six characters indicating the control number.
The last digit of the production year is indicated as the Year, and the Month is
indicated by 1 to 9, X (October), Y (November), or Z (December).
Rating plate example
Symbol Year Month Control number
SERIAL

14 1. INTRODUCTION
1.1 Product checking and accessories
Accessory
• CD-ROM (1): Including the Instruction Manual (Function) and other documents.
• Ferrite core (ZCAT3035-1330) × 2: Use two cores on RS-485 cables for communication between two inverters to reduce
noise. (Refer to page 67.)

15
1. INTRODUCTION
1.2 Inverter component names
1
2
3
4
5
6
7
8
9
10
1.2 Inverter component names
Component names are as follows.
(o)
(q)
(r)
(p)
(n)
(s)
(t)
(k)
(l)
(j)
(g)
(f)
(d)
(d)
(b)
(c)
(a)
(h)
(i)
(y) (m)
(v) (x)
(w)
(u)

16 1. INTRODUCTION
1.3 About the related manuals
*1 Refer to the Instruction Manual (Function).
*2 Refer to the Option Installation Manual.
*3 The vector control compatible options cannot be used with the slave.
1.3 About the related manuals
The manuals related to this product are shown below.
Symbol Name Description Refer to page
(a) RS-485 terminals Enable RS-485 communication between the master and the slave for the
parallel operation. 67
(b) Plug-in option connector 1
Connector for a plug-in option or a communication option.*3
Instruction
Manual of the
option
(c) Plug-in option connector 2
(d) Plug-in option connector 3
(e) Voltage/current input switch
(SW2) Selects between voltage and current for the input via terminals 2 and 4. *1
(f) Control circuit terminal block Connects cables for the control circuit. 48
(g) PU connector Connects the operation panel (FR-DU08) or the parameter unit (FR-PU07). This
connector also enables the RS-485 communication. 65
(h) USB A connector Connects a USB memory device. 66
(i) USB mini B connector The USB connection with a personal computer can be established. 66
(j) Upper main circuit terminal cover
(front)
Remove it when connecting cables to terminals P and N. 23(k) Upper main circuit terminal cover
(left)
(l) Upper main circuit terminal cover
(right)
(m) Main circuit terminal block (for
terminals P and N) Connected to the converter unit. 41
(n) Upper front cover
Remove this cover for the installation of the product, installation of a plug-in
(communication) option, RS-485 terminal wiring, switching of the voltage/
current input switches, etc.
23
(o) Power lamp Stays ON while the power is supplied to the control circuit (R1/L11, S1/L21). 42
(p) Alarm lamp Turns ON when the protective function of the inverter is activated. 94
(q) Charge lamp Stays ON while the power is supplied to the main circuit. 42
(r) Operation panel (FR-DU08) Operates and monitors the inverter. *1
(s) Lower front cover Remove this cover when removing the upper front cover. 23
(t) Lower main circuit terminal block
cover Remove it when connecting cables to terminals U, V, and W. 23
(u) Cooling fan Cools the inverter. 105
(v) Main circuit terminal block (for
terminals U, V, and W) Connects cables for the main circuit. 41
(w) Insulation sheet Insulates the main circuit. *2
(x) Side cover for main circuit
terminals
Remove this cover when installing the FR-A8CW (attachment for cable
connection in the enclosure) *2
(y) Switches (SW3 and SW4) for
manufacturer setting Do not change the initial setting (OFF ). —
OFF
ON
Manual name Manual number
FR-A870 Instruction Manual (Function) IB-0600616ENG
FR-A872-P Parallel Operation Function Manual IB-0600903ENG
FR-CC2-N-P Instruction Manual IB-0600916ENG
FR-A870 Safety Stop Function Instruction Manual BCN-A23228-017(E)
Option Installation Manual IB-0600850ENG

17
CHAPTER 2
CHAPTER 2
4
5
6
7
8
9
10
INSTALLATION AND WIRING
2.1 Peripheral devices ..................................................................................................................................................19
2.2 Removal and reinstallation of the operation panel or the front covers....................................................................23
2.3 Installation of the inverter and enclosure design ....................................................................................................26
2.4 Terminal connection diagrams................................................................................................................................32
2.5 Main circuit terminals ..............................................................................................................................................41
2.6 Control circuit..........................................................................................................................................................48
2.7 Communication connectors and terminals..............................................................................................................65
2.8 Connection to a motor with encoder (Vector control) .............................................................................................69
2.9 Parameter settings for a motor with encoder..........................................................................................................75

18 2. INSTALLATION AND WIRING
2INSTALLATION AND WIRING
This chapter explains the installation and the wiring of this product.
Always read the instructions before use.

19
2. INSTALLATION AND WIRING
2.1 Peripheral devices
1
2
3
4
5
6
7
8
9
10
2.1 Peripheral devices
2.1.1 Inverter and peripheral devices
• For operating two units in parallel
(c) Three-phase AC
power supply
接地
接地 接地
One circuit breaker and one magnetic contactor per converter unit
One circuit breaker and one magnetic contactor in total in a system
To the master converter unit
To the slave converter unit
(d) Molded case circuit
breaker (MCCB) or fuse
(e) Magnetic
contactor
(MC)
(f) Noise filter
(g) Noise filter
R/L1
S/L2
T/L3
N/-
P/+
N/-
P/+ U
V
W
(b) Converter unit
(FR-CC2-P)
(b) Converter unit
(FR-CC2-P)
R/L1
S/L2
T/L3
N/-
P/+
N/-
P/+ U
V
W
(a) Inverter
(FR-A802-P)
接地
Earth (Ground)
(h) Induction
motor
Earth (Ground)
(a) Inverter
(FR-A802-P)
(c) Three-phase AC
power supply
(d) Molded case circuit
breaker (MCCB) or fuse
(e) Magnetic
contactor
(MC)
(f) Noise filter
: Install these options as required.
Earth (Ground)
Earth (Ground) Earth (Ground)