Mitsubishi Electric FR-A820-00046 (0.4K) User manual

INDUSTRIAL AUTOMATION
MITSUBISHI ELECTRI
C
MITSUBISHI ELECTRI
C
FR-A800
Inverter
Instruction Manual
FR-A820-00046(0.4K) to 04750(90K)
FR-A840-00023(0.4K) to 06830(280K)
FR-A842-07700(315K) to 12120(500K)
FR-A846-00023(0.4K) to 03610(132K)
Art. no.: 274661
12 08 2016
Version F Version check

Instruction Manual
Inverter FR-A800
Art. no.: 274661
Version Changes / Additions / Corrections
A 04/2014 pdp First edition
B 05/2014 akl Additions: 앫FR-A840-03250(110K) to FR-A840-06830(280K)
앫IP55 compatible model
앫Compatibility with FR-A8NP
앫SF-PR included (setting values "70, 73, 74" of Pr. 71 (Pr. 450))
앫Swinging suppression (Pr. 1072 to Pr. 1079)
앫Position control functions (Pr. 1289, Pr. 1290, Pr. 1292 to Pr. 1297)
앫Heatsink protrusion attachment
앫Appendix: HMS network options
C 07/2014 akl/
pdp-gb
Additions: 앫Separated converter type
D 10/2014 akl Additions: 앫Motor permissible load level (Pr. 607, Pr. 608)
앫FR-A846-00023(0.4K) to 00170(5.5K),
FR-A846-00620(22K) to 03610(132K)
F 08/2016 pdp-
rw/akl
Additions:
Changes:
앫Parameters: Pr. 394, 395, 606, 635–638, 673, 674, 679–683, 851,
852, 855, 862, 863, 876, 1015, 1016, 1018, 1298, 1299
앫Signals: X48, X94, X95, X96, Y55, Y67
앫Second droop control
앫Cumulative pulse monitor
앫Slip amount when replacing the motor SF-JR to SF-PR
앫PM motor with a resolver
앫Options FR-A8TP, FR-A8APR, FR-A8AZ
앫Parameter setting values: Pr. 52, 54, 158, 178, 179, 180–189,
190–196, 393, 430, 451, 574, 774–776, 992, 1027–1034
앫Parameter names: Pr. C16–C19, C38–C41 (torque only)

FR-A800 I
Thank you for choosing this Mitsubishi inverter.
This Instruction Manual provides instructions for advanced use of the FR-A800 series inverters. Incor-
rect handling might cause an unexpected fault. Before using the inverter, always read this Instruction
Manual to use the equipment to its optimum.
Safety instructions
Do not attempt to install, operate, maintain or inspect the inverter until you have read through this In-
struction Manual and appended documents carefully and can use the equipment correctly. Do not
use the inverter until you have a full knowledge of the equipment, safety information and
instructions.
Installation, operation, maintenance and inspection must be performed by qualified personnel. Here,
qualified personnel means personnel who meets all the conditions below.
●A person who 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 accessoperating manuals forthe protective devices (e.g. light curtain) connect-
ed to the safety control system. A person who has read and familiarized himself/herself with the
manuals.
In this Instruction Manual, the safety instruction levels are classified into “WARNING” and “CAUTION”.
Note that even the CAUTION level may lead to a serious consequence according to conditions. Please
follow strictly the instructions of both levels because they are important to personnel safety.
PWARNING:
Assumes that incorrect handling may cause hazardous conditions, resulting in death or severe
injury.
ECAUTION:
Assumes that incorrect handling may cause hazardous conditions, resulting in medium or slight
injury, or may cause physical damage only.

II
Electric Shock Prevention
PWARNING:
●While power is on or when the inverter is running, do not open the front cover. Otherwise you
may get an electric shock.
●Do not run the inverter with the front cover removed. Otherwise, you may access the exposed
high-voltage terminals or the charging part of the circuitry and get an electric shock.
●Evenif power is off, do not remove the front cover except for wiringor periodic inspection.You
may access the charged inverter circuits and get an electric shock.
●Before starting wiring or inspection, check to make sure that the operation panel indicator
is off, wait for at least 10 minutes after the power supply has been switched off, and check
that there are no residual voltage using a tester or the like. The capacitor is charged with
high voltage for some time after power off and it is dangerous.
●This inverter must be earthed. Earthing must conform to the requirements of national and
local safety regulations and electrical codes (JIS, NEC section 250, IEC 536 class 1 and other
applicable standards). A neutral-point earthed power supply for 400V class inverter in
compliance with EN standard must be used.
●Any person who is involved in the wiring or inspection of this equipment should be fully
competent to do the work.
●Always install the inverter before wiring. Otherwise, you may get an electric shock or be
injured.
●If your application requires by installation standards an RCD (residual current device) as up
stream protection please select according to DIN VDE 0100-530 as following:
Single phase inverter type A or B
Three phase inverter only type B
●Perform setting dial and key operations with dry hands to prevent an electric shock. Other-
wise you may get an electric shock.
●Do not subject the cables to scratches, excessive stress, heavy loads or pinching. Otherwise
you may get an electric shock.
●Do not replace the cooling fan while power is on. It is dangerous to replace the cooling fan
while power is on.
●Do not touch the printed circuit board or handle the cables with wet hands. You may get an
electric shock.
●When measuring the main circuit capacitor capacity, the DC voltage is applied to the motor
for 1s at powering OFF. Never touch the motor terminal, etc. right after powering OFF to
prevent an electric shock.
●A PM motor is a synchronous motor with high-performance magnets embedded in the rotor.
Motor terminals holds high-voltage while the motor is running even after the inverter power
is turned OFF. Before wiring or inspection, the motor must be confirmed to be stopped. In an
application, such as fan and blower, where the motor is driven by the load, a low-voltage
manual motor starter must be connected at the inverter's output side, and wiring and
inspection must be performed while the motor starter is open. Otherwise you may get an
electric shock.

FR-A800 III
Fire Prevention
Injury Prevention
ECAUTION:
●Mount the inverter to incombustible material. Install the inverter on a nonflammable wall
without holes (so that nobody can touch the inverter heatsink on the rear side, etc.). Mount-
ing it to or near combustible material can cause a fire.
●If the inverter has become faulty, switch off the inverter power. A continuous flow of large
current could cause a fire.
●When using a brake resistor, a sequence that will turn OFF power when afault signal is output
must be configured. Otherwise the brake resistor may excessively overheat due to damage
of the brake transistor and such, causing a fire.
●Do not connect a resistor directly to the DC terminals P/+, N/–. This could cause a fire and
destroy the inverter. The surface temperature of braking resistors can far exceed 100 °C for
brief periods. Make sure that there is adequate protection against accidental contact and a
safe distance is maintained to other units and system parts.
●Be sure to perform daily and periodic inspections as specified in the Instruction Manual. If a
product is used without any inspection, a burst, breakage, or a fire may occur.
ECAUTION:
●Apply only the voltage specified in the instruction manual to each terminal. Otherwise,
burst, damage, etc. may occur.
●Ensure that the cables are connected to the correct terminals. Otherwise, burst, damage, etc.
may occur.
●Always make sure that polarity is correct to prevent damage, etc. Otherwise, burst, damage,
etc. may occur.
●While power is on or for some time after power-off, do not touch the inverter as it is hot and
you may get burnt.

IV
Additional Instructions
Also note the following points to prevent an accidental failure, injury, electric shock, etc.
Transportation and installation
Temperature applicable for a short time, e.g. in transit.
2.9 m/s² or less for the FR-A840-04320(160K) or higher.
ECAUTION:
●Any person who is opening a package using a sharp object, such as a knife and cutter, must
wear gloves to prevent injuries caused by the edge of the sharp object.
●When carrying products, use correct lifting gear to prevent injury.
●Do not stand or rest heavy objects on the product.
●Do not stack the inverter boxes higher than the number recommended.
●When carrying the inverter, do not hold it by the front cover or setting dial; it may fall off or
fail.
●During installation, caution must be taken not to drop the inverter as doing so may cause
injuries.
●Ensure that installation position and material can withstand the weight of the inverter.
Install according to the information in the instruction manual.
●Do not install the product on a hot surface.
●Check the inverter mounting orientation is correct.
●The inverter must be installed on a strong surface securely with screws so that it will not drop.
●Do not install or operate the inverter if it is damaged or has parts missing. This can result in
breakdowns.
●Prevent other conductive bodies such as screws and metal fragments or other flammable
substance such as oil from entering the inverter.
●As the inverter is a precision instrument, do not drop or subject it to impact.
●If halogen-based materials (fluorine, chlorine, bromine, iodine, etc.) infiltrate into a Mitsub-
ishi product, the product will be damaged. Halogen-based materials are often included in
fumigant, which is used to sterilize or disinfect wooden packages. When packaging, prevent
residual fumigant components from being infiltrated into Mitsubishi products, or use an
alternative sterilization or disinfection method (heat disinfection, etc.) for packaging. Ster-
ilization of disinfection of wooden package should also be performed before packaging the
product.
●Use the inverter under the following environmental conditions. Otherwise, the inverter may
be damaged.
Operating Condition FR-A820 FR-A840
Surrounding air
temperature
LD, ND (initial setting), HD ratings: –10 °C to +50 °C (non-freezing)
SLD rating: –10 °C to +40 °C (non-freezing)
Ambient humidity With circuit board coating, IP55 compatible models: 95% RH or less (non-condensing),
Without circuit board coating: 90 % RH or less (non-condensing)
Storage temperature –20 °C to +65 °C 
Atmosphere Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Altitude Maximum 1000 m above sea level for standard operation. After that derate by 3 % for every
extra 500 m up to 2500 m (91 %).
Vibration 5.9 m/s² or less at 10 to 55 Hz (directions of X, Y, Z axes)

FR-A800 V
Wiring
Operation
ECAUTION:
●Do not install assemblies or components (e. g. power factor correction capacitors) on the
inverter output side, which are not approved from Mitsubishi. These devices on the inverter
output side may be overheated or burn out.
●The direction of rotation of the motor corresponds to the direction of rotation commands
(STF/STR) only if the phase sequence (U, V, W) is maintained.
●PM motor terminals (U, V, W) hold high-voltage while the PM motor is running even after the
power is turned OFF. Before wiring, the PM motor must be confirmed to be stopped. Other-
wise you may get an electric shock.
●Never connect a PM motor to the commercial power supply.
Applying the commercial power supply to input terminals (U,V, W) of a PM motor will burn
the PM motor. The PM motor must be connected with the output terminals (U, V, W) of the
inverter.
PWARNING:
●When you have chosen the retry function, stay away from the equipment as it will restart
suddenly after an alarm stop.
●Since pressing the STOP/RESET key may not stop output depending on the function setting
status, provide a circuit and switch separately to make an emergency stop (power off,
mechanical brake operation for emergency stop, etc).
●Make sure that the start signal is off before resetting the inverter alarm. A failure to do so
may restart the motor suddenly.
●Do not use a PM motor for an application where the PM motor is driven by its load and runs
at a speed higher than the maximum motor speed.
●Performing pre-excitation (LX signal and X13 signal) under torque control (Real sensorless
vector control) may start the motor running at a low speed even when the start command
(STF or STR) is not input The motor may run also at a low speed when the speed limit value =
0 with a start command input. It must be confirmed that the motor running will not cause
any safety problem before performing pre-excitation.
●The inverter can be started and stopped via the serial port communications link or the field
bus. However, please note that depending on the settings of the communications parame-
ters it may not be possible to stop the system via these connections if there is an error in the
communications system or the data line. In configurations like this it is thus essential to
install additional safety hardware that makes it possible to stop the system in an emergency
(e.g. controller inhibit via control signal, external motor contactor etc). Clear and unambig-
uous warnings about this must be posted on site for the operating and service staff.
●Use this inverter only with three-phase induction motors or with a PM motor. Connection of
any other electrical equipment to the inverter output may damage the inverter as well as the
equipment.
●Do not modify the equipment.
●Do not perform parts removal which is not instructed in this manual. Doing so may lead to
fault or damage of the inverter

VI
Test operation and adjustment
ECAUTION:
●The electronic thermal relay function does not guarantee protection of the motor from
overheating. It is recommended to install both an external thermal and PTC thermistor for
overheat protection.
●Do not use a magnetic contactor on the inverter input for frequent starting/stopping of the
inverter. Otherwise, the life of the inverter decreases.
●Use a noise filter to reduce theeffect of electromagnetic interference and follow the accepted
EMC procedures for proper installation of frequency inverters. Otherwise nearby electronic
equipment may be affected.
●Take appropriate measures regarding harmonics. Otherwise this can endanger compensa-
tion systems or overload generators.
●When driving a 400V class motor by the inverter, the motor must be an insulation-enhanced
motor or measures must be taken to suppress surge voltage. Surge voltage attributable to
the wiring constants may occur at the motor terminals, deteriorating the insulation of the
motor.
●Use a motor designed for inverter operation. (The stress for motor windings is bigger than
in line power supply).
●When parameter clear or all clear is performed, set again the required parameters before
starting operations. Each parameter returns to the initial value.
●The inverter can be easily set for high-speed operation. Before changing its setting, fully
examine the performances of the motor and machine.
●The DC braking function of the frequency inverter is not designed to continuously hold a
load. Use an electro-mechanical holding brake on the motor for this purpose.
●Before running an inverter which had been stored for a long period, always perform inspec-
tion and test operation.
●For prevention of damage due to static electricity, touch nearby metal before touching this
product to eliminate static electricity from your body.
●Only one PM motor can be connected to an inverter.
●A PM motor must be used under PM sensorless vector control. Do not use a synchronous
motor, induction motor, or synchronous induction motor.
●Do not connect a PM motor in the induction motor control settings (initial settings). Do not
use an induction motor in the PM sensorless vector control settings. It will cause a failure.
●In the system with a PM motor, the inverter power must be turned ON before closing the
contacts of the contactor at the output side.
ECAUTION:
●Before starting operation, confirm and adjust the parameters. A failure to do so may cause
some machines to make unexpected motions.

FR-A800 VII
Emergency stop
Maintenance, inspection and parts replacement
Disposing the inverter
General instructions
Many of the diagrams and drawings in instruction manuals show the inverter without a cover, or par-
tially open. Never run the inverter in this status. Always replace the cover and follow instruction man-
uals when operating the inverter. For more details on the PM motor, refer to the Instruction Manual
of the PM motor.
For details of the inverter FR-A802 (Separated Converter Type) and the corresponding converter unit
FR-CC2 refer to the respective Instruction Manuals (refer to page 1-7).
ECAUTION:
●Provide a safety backup such as an emergency brake which will prevent the machine and
equipment from hazardous conditions if the inverter fails.
●When the breaker on the inverter primary side trips, check for the wiring fault (short circuit),
damage to internal parts of the inverter, etc. Identify the cause of the trip, then remove the
cause and power on the breaker.
●When the protective function is activated (i. e. the frequency inverter switches off with an
error message), take the corresponding corrective action as described in the inverter man-
ual, then reset the inverter, and resume operation.
ECAUTION:
●Do not carry out a megger (insulation resistance) test on the control circuit of the inverter. It
will cause a failure.
ECAUTION:
●Treat as industrial waste.

VIII
Symbols used in the manual
Use of instructions
Instructions concerning important information are marked separately and are displayed as follows:
Use of examples
Examples are marked separately and are displayed as follows:
Use of numbering in the figures
Numbering within the figures is displayed by white numbers within black circles and is explained in
a table following it using the same number, e.g.:
   
Use of handling instructions
Handling instructions are steps that must be carried out in their exact sequence during startup, op-
eration, maintenance and similar operations.
They are numbered consecutively (black numbers in white circles):
Text.
Text.
Text.
Use of footnotes in tables
Instructions in tables are explained in footnotes underneath the tables (in superscript). There is a foot-
note character at the appropriate position in the table (in superscript).
If there are several footnotes for one table then these are numbered consecutively underneath the ta-
ble (black numbers in white circle, in superscript):
Text
Text
Text
NOTE Text of instruction
Example 쑴Example text 쑶

Contents
FR-A800 IX
Contents
1Introduction
1.1 General remarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Product checking and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.1 Inverter model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.2 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.3 How to read the SERIAL number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.3 Component names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.4 Operation steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.5 Related manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
2 Installation and wiring
2.1 Peripheral devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 Inverter and peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.2 Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.2 Removal and reinstallation of the operation panel or the front covers. . . . . . . . . . . . . . . . . . . . 2-7
2.3 Installation of the inverter and enclosure design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
2.3.1 Inverter installation environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
2.3.2 Cooling system types for inverter enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
2.3.3 Inverter installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
2.3.4 Heatsink protrusion attachment procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
2.4 Terminal connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21
2.4.1 FM type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21
2.4.2 CA type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23
2.5 Main circuit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
2.5.1 Details on the main circuit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
2.5.2 Terminal layout of the main circuit terminals, wiring of power supply
and the motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26
2.5.3 Applicable cables and the wiring length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29
2.5.4 Earthing (grounding) precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34
2.6 Control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36
2.6.1 Details on the control circuit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36
2.6.2 Control logic (sink/source) change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-40
2.6.3 Wiring of control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43
2.6.4 Wiring precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-47
2.6.5 When using separate power supplies for the control circuit
and the main circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-48
2.6.6 When supplying 24 V external power to the control circuit. . . . . . . . . . . . . . . . . . . . .2-51
2.6.7 Safety stop function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-54
2.7 Communication connectors and terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-57
2.7.1 PU connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-57
2.7.2 USB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-58
2.7.3 RS-485 terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-60

Contents
X
2.8 Connection of motor with encoder (vector control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-61
2.9 Parameter settings for a motor with encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-73
2.10 Connection of stand-alone option units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-77
2.10.1 Connection of the brake resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-77
2.10.2 Connection of the brake unit (FR-BU2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-82
2.10.3 Connection of the brake unit (FR-BU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-85
2.10.4 Connection of the brake unit (BU type). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-86
2.10.5 Connection of the high power factor converter (FR-HC2) . . . . . . . . . . . . . . . . . . . . . .2-87
2.10.6 Connection of the power regeneration common converter (FR-CV) . . . . . . . . . . . .2-89
2.10.7 Connection of the power regeneration converter (MT-RC) . . . . . . . . . . . . . . . . . . . . .2-90
2.10.8 Connection of the DC reactor (FR-HEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-91
3 Precautions for use of the inverter
3.1 Electro-magnetic interference (EMI) and leakage currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1.1 Leakage currents and countermeasures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1.2 Countermeasures against inverter-generated EMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.1.3 Built-in EMC filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.2 Power supply harmonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
3.2.1 Power supply harmonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
3.2.2 Harmonic suppression guidelines in Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
3.3 Installation of a reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
3.4 Power-OFF and magnetic contactor (MC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
3.5 Countermeasures against deterioration of the 400 V class motor insulation . . . . . . . . . . . . .3-19
3.6 Checklist before starting operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
3.7 Failsafe system which uses the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
4 Basic operation
4.1 Operation panel (FR-DU08) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.1 Components of the operation panel (FR-DU08). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.2 Basic operation of the operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.1.3 Correspondences between digital and actual characters. . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.1.4 Changing the parameter setting value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.2 Monitoring the inverter status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.2.1 Monitoring of output current and output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.2.2 First monitored item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.2.3 Displaying the set frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.3 Easy operation mode setting (easy setting mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
4.4 Frequently-used parameters (simple mode parameters) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
4.4.1 Simple mode parameter list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
4.5 Basic operation procedure (PU operation). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
4.5.1 Operating at the set frequency (example: operating at 30 Hz) . . . . . . . . . . . . . . . . . .4-13
4.5.2 Using the setting dial like a potentiometer to perform operation. . . . . . . . . . . . . . .4-15
4.5.3 Setting the frequency by switches (multi-speed setting) . . . . . . . . . . . . . . . . . . . . . . .4-16
4.5.4 Setting the frequency with analog signals (voltage input). . . . . . . . . . . . . . . . . . . . . .4-18
4.5.5 Using an analog signal (current input) to give a frequency command . . . . . . . . . .4-20

Contents
FR-A800 XI
4.6 Basic operation procedure (External operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
4.6.1 Using the frequency set by the operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
4.6.2 Setting the frequency by switches (multi-speed setting) (Pr. 4 to Pr. 6) . . . . . . . . .4-24
4.6.3 Setting the frequency with analog signals (voltage input). . . . . . . . . . . . . . . . . . . . . .4-26
4.6.4 Changing the frequency (60 Hz, initial value) at the maximum voltage input
(5 V, initial value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-27
4.6.5 Using an analog signal (current input) to give a frequency command . . . . . . . . . .4-28
4.6.6 Changing the frequency (60 Hz, initial value) at the maximum current input
(at 20 mA, initial value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-29
4.7 Basic operation procedure (JOG operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-30
4.7.1 Performing JOG operation using external signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-30
4.7.2 JOG operation from the operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-30
5 Parameters
5.1 Parameter List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.1 Parameter list (by number) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.2 Group parameter display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34
5.1.3 Parameter list (by function group) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-36
5.2 Control method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-49
5.2.1 Vector control and Real sensorless vector control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-53
5.2.2 Changing the control method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-56
5.2.3 Selecting the Advanced magnetic flux vector control . . . . . . . . . . . . . . . . . . . . . . . . .5-67
5.2.4 Selecting the PM sensorless vector control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-70
5.2.5 Low-speed range torque characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-75
5.3 Speed control under Real sensorless vector control, vector control,
PM sensorless vector control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-76
5.3.1 Setting procedure of Real sensorless vector control (speed control) . . . . . . . . . . . .5-79
5.3.2 Setting procedure of vector control (speed control) . . . . . . . . . . . . . . . . . . . . . . . . . . .5-81
5.3.3 Setting procedure of PM sensorless vector control (speed control) . . . . . . . . . . . . .5-82
5.3.4 Setting the torque limit level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-84
5.3.5 Performing high-accuracy, fast-response control (gain adjustment for Real
sensorless vector control, vector control and PM sensorless vector control) . . . .5-97
5.3.6 Troubleshooting in the speed control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-107
5.3.7 Speed feed forward control and model adaptive speed control . . . . . . . . . . . . . . .5-109
5.3.8 Torque bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-113
5.3.9 Avoiding motor overrunning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-118
5.3.10 Notch filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-121
5.4 Torque control under Real sensorless vector control and vector control . . . . . . . . . . . . . . . .5-123
5.4.1 Torque control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-123
5.4.2 Setting procedure of Real sensorless vector control (torque control) . . . . . . . . . .5-129
5.4.3 Setting procedure for vector control (torque control) . . . . . . . . . . . . . . . . . . . . . . . .5-131
5.4.4 Torque command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-132
5.4.5 Speed limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-136
5.4.6 Torque control gain adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-144
5.4.7 Troubleshooting in torque control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-146
5.4.8 Torque control by variable-current limiter control . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-147

Contents
XII
5.5 Position control under vector control and PM sensorless vector control . . . . . . . . . . . . . . . .5-149
5.5.1 About position control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-149
5.5.2 Setting procedure of vector control (position control) . . . . . . . . . . . . . . . . . . . . . . . .5-152
5.5.3 Set the procedure of PM sensorless vector control (position control) . . . . . . . . . .5-153
5.5.4 Simple positioning function by parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-154
5.5.5 Position control by inverter pulse train input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-170
5.5.6 Pulse monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-172
5.5.7 Electronic gear setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-177
5.5.8 Position adjustment parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-179
5.5.9 Position control gain adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-181
5.5.10 Troubleshooting in position control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-183
5.6 Real sensorless vector control, vector control,
PM sensorless vector control adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-186
5.6.1 Speed detection filter and torque detection filter . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-186
5.6.2 Excitation ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-187
5.6.3 Gain adjustment of current controllers for the d axis and the q axis . . . . . . . . . . .5-188
5.7 (E) Environment setting parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-189
5.7.1 Real time clock function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-190
5.7.2 Reset selection/disconnected PU detection/PU stop selection . . . . . . . . . . . . . . . .5-192
5.7.3 PU display language selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-196
5.7.4 Buzzer control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-196
5.7.5 PU contrast adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-196
5.7.6 Display-off mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-197
5.7.7 Resetting USB host errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-197
5.7.8 Setting dial potentiometer mode/key lock operation selection. . . . . . . . . . . . . . . .5-198
5.7.9 Frequency change increment amount setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-200
5.7.10 Multiple rating setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-201
5.7.11 Using the power supply exceeding 480V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-203
5.7.12 Parameter write selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-203
5.7.13 Password function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-207
5.7.14 Free parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-211
5.7.15 Setting multiple parameters as a batch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-211
5.7.16 Extended parameter display and user group function . . . . . . . . . . . . . . . . . . . . . . . .5-216
5.7.17 PWM carrier frequency and Soft-PWM control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-219
5.7.18 Inverter parts life display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-222
5.7.19 Maintenance timer alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-227
5.7.20 Current average value monitor signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-229
5.8 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern . . . .5-233
5.8.1 Setting the acceleration and deceleration time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-233
5.8.2 Acceleration/deceleration pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-240
5.8.3 Remote setting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-247
5.8.4 Starting frequency and start-time hold function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-251
5.8.5 Minimum motor speed frequency and hold function at motor start up . . . . . . .5-253
5.8.6 Shortest acceleration/deceleration and optimum acceleration/deceleration
(automatic acceleration/deceleration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-255
5.8.7 Lift operation (automatic acceleration/deceleration) . . . . . . . . . . . . . . . . . . . . . . . . .5-260

Contents
FR-A800 XIII
5.9 (D) Operation command and frequency command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-262
5.9.1 Operation mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-263
5.9.2 Startup in Network operation mode at power-ON . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-272
5.9.3 Start command source and frequency command source
during communication operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-274
5.9.4 Reverse rotation prevention selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-281
5.9.5 Frequency setting via pulse train input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-282
5.9.6 JOG operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-286
5.9.7 Operation by multi-speed setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-288
5.10 (H) Protective function parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-291
5.10.1 Motor overheat protection (electronic thermal O/L relay) . . . . . . . . . . . . . . . . . . . . .5-292
5.10.2 Fault definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-302
5.10.3 Cooling fan operation selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-303
5.10.4 Earth (ground) fault detection at start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-304
5.10.5 Varying the activation level of the undervoltage protective function . . . . . . . . . .5-304
5.10.6 Initiating a protective function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-305
5.10.7 I/O phase loss protection selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-306
5.10.8 Retry function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-307
5.10.9 Limiting the output frequency (maximum/minimum frequency) . . . . . . . . . . . . . .5-310
5.10.10 Avoiding the mechanical resonance points (frequency jump) . . . . . . . . . . . . . . . . .5-312
5.10.11 Stall prevention operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-314
5.10.12 Motor overspeeding detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-322
5.11 (M) Monitor display and monitor output signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-323
5.11.1 Speed display and rotations per minute setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-324
5.11.2 Monitor indicator selection using operation panel or via communication . . . . .5-327
5.11.3 Monitor display selection for terminals FM/CA and AM . . . . . . . . . . . . . . . . . . . . . . .5-341
5.11.4 Adjusting terminals FM/CA and AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-348
5.11.5 Energy saving monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-354
5.11.6 Output terminal function selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-361
5.11.7 Output frequency detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-373
5.11.8 Output current detection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-377
5.11.9 Output torque detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-379
5.11.10 Remote output function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-380
5.11.11 Analog remote output function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-382
5.11.12 Fault code output selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-385
5.11.13 Pulse train output of output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-386
5.11.14 Detection of control circuit temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-387
5.11.15 Encoder pulse dividing output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-388

Contents
XIV
5.12 (T) Multi-Function Input Terminal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-389
5.12.1 Analog input selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-389
5.12.2 Analog input terminal (terminal 1, 4) function assignment . . . . . . . . . . . . . . . . . . . .5-394
5.12.3 Analog input compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-395
5.12.4 Analog input responsiveness and noise elimination . . . . . . . . . . . . . . . . . . . . . . . . . .5-399
5.12.5 Frequency setting voltage (current) bias and gain . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-401
5.12.6 Bias and gain for torque (magnetic flux) and set voltage (current) . . . . . . . . . . . .5-409
5.12.7 Checking of current input on analog input terminal . . . . . . . . . . . . . . . . . . . . . . . . . .5-417
5.12.8 Input terminal function selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-422
5.12.9 Inverter output shutoff signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-426
5.12.10 Selecting operation condition of the second function selection signal (RT)
and the third function selection signal (X9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-428
5.12.11 Start signal operation selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-430
5.13 (C) Motor constant parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-434
5.13.1 Applied motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-434
5.13.2 Offline auto tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-440
5.13.3 Offline auto tuning for a PM motor (motor constant tuning) . . . . . . . . . . . . . . . . . .5-454
5.13.4 Online auto tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-465
5.13.5 Signal loss detection of encoder signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-469
5.14 (A) Application parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-470
5.14.1 Electronic bypass function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-471
5.14.2 Self power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-480
5.14.3 Brake sequence function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-484
5.14.4 Stop-on-contact control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-489
5.14.5 Load torque high speed frequency control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-494
5.14.6 Traverse function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-498
5.14.7 Swinging suppression control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-500
5.14.8 Orientation control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-503
5.14.9 PID control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-524
5.14.10 Changing the display increment of numerical values used in PID control . . . . . .5-543
5.14.11 PID pre-charge function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-547
5.14.12 Dancer control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-552
5.14.13 Automatic restart after instantaneous power failure/
flying start with an induction motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-562
5.14.14 Automatic restart after instantaneous power failure/
flying start with an IPM motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-571
5.14.15 Offline auto tuning for a frequency search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-574
5.14.16 Power failure time deceleration-to-stop function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-580
5.14.17 PLC function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-587
5.14.18 Trace function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-591

Contents
FR-A800 XV
5.15 (N) Operation via communication and its settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-600
5.15.1 Wiring and configuration of PU connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-600
5.15.2 Wiring and configuration of RS-485 terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-602
5.15.3 Initial setting of operation via communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-606
5.15.4 Initial settings and specifications of RS-485 communication. . . . . . . . . . . . . . . . . . .5-610
5.15.5 Mitsubishi inverter protocol (computer link communication) . . . . . . . . . . . . . . . . .5-612
5.15.6 MODBUS RTU communication specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-630
5.15.7 USB device communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-648
5.15.8 Automatic connection with GOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-649
5.16 (G) Control parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-651
5.16.1 Manual torque boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-652
5.16.2 Base frequency, voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-654
5.16.3 Load pattern selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-656
5.16.4 Energy saving control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-659
5.16.5 Adjustable 5 points V/F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-660
5.16.6 SF-PR slip amount adjustment mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-662
5.16.7 DC injection brake, zero speed control, and servo lock . . . . . . . . . . . . . . . . . . . . . . . .5-663
5.16.8 Output stop function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-671
5.16.9 Stop selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-673
5.16.10 Regenerative brake selection and DC feeding mode . . . . . . . . . . . . . . . . . . . . . . . . . .5-675
5.16.11 Regeneration avoidance function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-685
5.16.12 Increased magnetic excitation deceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-689
5.16.13 Slip compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-691
5.16.14 Encoder feedback control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-692
5.16.15 Droop control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-695
5.16.16 Speed smoothing control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-699
5.17 Parameter clear / all parameter clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-700
5.18 Copying and verifying parameters on the operation panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-701
5.18.1 Parameter copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-702
5.18.2 Parameter verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-703
5.19 Copying and verifying parameters using USB memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-704
5.20 Checking parameters changed from their initial values (Initial value change list). . . . . . . .5-708
6Protectivefunctions
6.1 Inverter fault and alarm indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2 Reset method for the protective functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.3 Check and clear of the faults history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.3.1 Check for the faults history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.3.2 Faults history clearing procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6.4 The list of fault displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6.5 Causes and corrective actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
6.5.1 Error message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
6.5.2 Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13
6.5.3 Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-17
6.5.4 Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18

Contents
XVI
6.6 Check first when you have a trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-36
6.6.1 Motor does not start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-36
6.6.2 Motor or machine is making abnormal acoustic noise . . . . . . . . . . . . . . . . . . . . . . . . .6-39
6.6.3 Inverter generates abnormal noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
6.6.4 Motor generates heat abnormally. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
6.6.5 Motor rotates in the opposite direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
6.6.6 Speed greatly differs from the setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-41
6.6.7 Acceleration/deceleration is not smooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-41
6.6.8 Speed varies during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-42
6.6.9 Operation mode is not changed properly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-43
6.6.10 Operation panel (FR-DU08) display is not operating . . . . . . . . . . . . . . . . . . . . . . . . . . .6-43
6.6.11 Motor current is too large. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-43
6.6.12 Speed does not accelerate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-44
6.6.13 Unable to write parameter setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-45
6.6.14 Power lamp is not lit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-45
7 Precautions for maintenance and inspection
7.1 Inspection item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1.1 Daily inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1.2 Periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1.3 Daily and periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.1.4 Checking the inverter and converter modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.1.5 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.1.6 Replacement of parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
7.1.7 Inverter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
7.2 Measurement of main circuit voltages, currents and powers . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
7.2.1 Measurement of powers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-15
7.2.2 Measurement of voltages and use of PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16
7.2.3 Measurement of currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-17
7.2.4 Use of CT and transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18
7.2.5 Measurement of inverter input power factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18
7.2.6 Measurement of converter output voltage (across terminals P and N) . . . . . . . . . .7-18
7.2.7 Measurement of inverter output frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18
7.2.8 Insulation resistance test using megger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-19
7.2.9 Pressure test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-19
8Specifications
8.1 Inverter rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1.1 200 V class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1.2 400 V class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
8.2 Motor rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
8.2.1 Vector control dedicated motor SF-V5RU (1500r/min series) . . . . . . . . . . . . . . . . . . . . 8-5
8.2.2 Vector control dedicated motor SF-THY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
8.2.3 Torque characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
8.3 Common specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10
8.4 Outline dimension drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12
8.4.1 Inverter outline dimension drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12
8.4.2 Dedicated motor outline dimension drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-21