Mitsubishi Electric fr-e700 series User manual

MITSUBISHI ELECTRIC
MITSUBISHI ELECTRIC
INDUSTRIAL AUTOMATION
FR-E700
Inverters
Instruction Manual
FR-E720SSC EC
FR-E740SC EC
10052011
Version A

Instruction Manual
Inverter FR-E700SC EC
Version Changes / Additions / Corrections
A 05/2011 akl/rwi —

FR-E700SC EC I
Thank you for choosing this Mitsubishi inverter.
This instruction manual provides instructions for advanced use of the FR-E700SC series inverters. In-
correct handling might cause an unexpected fault. Before using the inverter, always read this instruc-
tion 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
instruction manual 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. 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.
m
WARNING:
Assumes that incorrect handling may cause hazardous conditions, resulting in death or severe
injury.
b
CAUTION:
Assumes that incorrect handling may cause hazardous conditions, resulting in medium or slight
injury, or may cause physical damage only.

II
Electric Shock Prevention
m
WARNING:
●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,youmayaccessthe exposed
high-voltage terminals or the charging part of the circuitry and get an electric shock.
●Even if power is off, do not remove the front cover except for wiring or 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)
Use a neutral-point earthed (grounded) power supply for 400V class inverter in compliance
with EN standard.
●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 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.

FR-E700SC EC III
Fire Prevention
Injury Prevention
b
CAUTION:
●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, make up a sequence that will turn off power when an alarm
signal is output. 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.
b
CAUTION:
●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.
Transport and Installation

Temperature applicable for a short time, e.g. in transit.
Wiring
Trial Run
b
CAUTION:
●Transport the product using the correct method that corresponds to the weight. Failure to
observe this could lead to injuries.
●Do not stack the inverter boxes higher than the number recommended.
●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 or operate the inverter if it is damaged or has parts missing. This can result in
breakdowns.
●When carrying the inverter, do not hold it by the front cover or setting dial; it may fall off or
fail.
●Do not stand or rest heavy objects on the product.
●Check the inverter mounting orientation is correct.
●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.
●Use the inverter under the following environmental conditions. Otherwise, the inverter may
be damaged.
Operating Condition Specifications
Ambient temperature −10°C to +50°C (non-freezing)
Ambient humidity 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 1000m above sea level for standard operation.
After that derate by 3% for every extra 500m up to 2500m (91%)
Vibration 5.9m/s² or less at 10 to 55Hz (directions of X, Y, Z axes)
b
CAUTION:
●Do not install assemblies or components (e. g. power factor correction capacitors) on the
inverter output side, which are not approved from Mitsubishi.
●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.
b
CAUTION:
●Before starting operation, confirm and adjust the parameters. A failure to do so may cause
some machines to make unexpected motions.

FR-E700SC EC V
Operation
m
WARNING:
●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.
●The load used should be a three-phase induction motor only. Connection of any other
electrical equipment to the inverter output may damage 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.
b
CAUTION:
●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.
●Usea noise filterto reduce the effect ofelectromagnetic interferenceand follow theaccepted
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.
●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.

VI
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 this instruction
manual when operating the inverter.
b
CAUTION:
●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.
b
CAUTION:
●Do not carry out a megger (insulation resistance) test on the control circuit of the inverter.
It will cause a failure.
b
CAUTION:
●Treat as industrial waste.

Contents
FR-E700SC EC VII
Contents
1 Product checking and part identification
1.1 Inverter type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Description of the case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.1 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 Installation
2.1 Removal and reinstallation of the front cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 FR-E720S and FR-E740-016SC to FR-E740-170SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.2 FR-E740-230SC and FR-E740-300SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 Removal and reinstallation of the wiring cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.4 Enclosure design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.4.1 Inverter installation environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.4.2 Inverter placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3Wiring
3.1 Inverter and peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1.1 Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2 Terminal connection diagramm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.3 Main circuit connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.3.1 Specification of main circuit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.3.2 Terminal layout and wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.4 Control circuit specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.4.1 Control circuit terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.4.2 Wiring instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
3.4.3 Safety stop function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
3.4.4 Changing the control logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
3.5 PU connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
3.5.1 Connecting the parameter unit using a connection cable . . . . . . . . . . . . . . . . . . 3-29
3.5.2 RS-485 communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
3.6 USB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
3.7 Connection of stand-alone option units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
3.7.1 Magnetic contactors (MC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
3.7.2 Connection of a dedicated external brake resistor FR-ABR
(FR-E720S-030SC or more, FR-E740-016SC or more) . . . . . . . . . . . . . . . . . . . . . . . . 3-34
3.7.3 Connection of a brake unit FR-BU2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
3.7.4 Connection of the high power factor converter FR-HC . . . . . . . . . . . . . . . . . . . . . 3-40
3.7.5 Connection of the power regeneration common converter FR-CV . . . . . . . . . . 3-41
3.7.6 Connection of the power improving DC reactor FFR-HEL-(H)-E . . . . . . . . . . . . . 3-42
3.7.7 Installation of a reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
3.8 Electromagnetic compatibility (EMC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
3.8.1 Leakage currents and countermeasures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
3.8.2 Inverter-generated noises and their reduction techniques . . . . . . . . . . . . . . . . . 3-47
3.8.3 Power supply harmonics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
3.8.4 Inverter-driven 400V class motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51

Contents
VIII
4 Operation
4.1 Precautions for use of the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.1 Failsafe of the system which uses the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.2 Drive the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.3 Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.3.1 Parts of the operation panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.3.2 Basic operation (factory setting). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.3.3 Easy operation mode setting (easy setting mode). . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.3.4 Operation lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4.3.5 Monitoring of output current and output voltage. . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.3.6 First priority monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.3.7 Digital dial push . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.3.8 Change the parameter setting value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.3.9 Parameter clear/All Parameter clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.3.10 Initial value change list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
5 Basic settings
5.1 Simple mode parameter list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.1 Overheat protection of the motor by the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.2 When the rated motor frequency is 60Hz (Pr. 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.1.3 Increase the starting torque (Pr. 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5.1.4 Limit the maximum and minimum output frequency (Pr. 1, Pr. 2) . . . . . . . . . . . . 5-7
5.1.5 Change the acceleration/deceleration time (Pr. 7, Pr. 8) . . . . . . . . . . . . . . . . . . . . . 5-9
5.1.6 Operation mode (Pr. 79) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.1.7 Large starting torque and low speed torque are necessary
(Advanced magnetic flux control, General-purpose magnetic flux vector
control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5.1.8 To exhibit the best performance of the motor performance
(offline auto tuning) (Pr. 9, Pr. 71, Pr. 83, Pr. 84, Pr. 96) . . . . . . . . . . . . . . . . . . . . . . 5-15
5.2 PU operation mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.2.1 Set the set frequency to operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5.2.2 Use the digital dial like a potentiometer to perform operation. . . . . . . . . . . . . . 5-23
5.2.3 Use switches to give the frequency command (multi-speed setting). . . . . . . . 5-24
5.2.4 Perform frequency setting by analog voltage input . . . . . . . . . . . . . . . . . . . . . . . . 5-26
5.2.5 Perform frequency setting by analog current input . . . . . . . . . . . . . . . . . . . . . . . . 5-28
5.3 External operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
5.3.1 Use the set frequency set by PU (Pr. 79 = 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
5.3.2 Use switches to give a start command and a frequency command
(multi-speed setting) (Pr. 4 to Pr. 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
5.3.3 Perform frequency setting by analog voltage input . . . . . . . . . . . . . . . . . . . . . . . . 5-35
5.3.4 Change the frequency (40Hz) of the maximum value of potentiometer
(at 5V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38
5.3.5 Perform frequency setting by analog current input . . . . . . . . . . . . . . . . . . . . . . . . 5-39
5.3.6 Change the frequency (40Hz) of the maximum value of potentiometer
(at 20mA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41

Contents
FR-E700SC EC IX
6 Parameter
6.1 Parameter overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2 Control mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
6.2.1 Change the control method (Pr. 80, Pr. 81, Pr. 800) . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
6.3 Adjust the output torque (current) of the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.3.1 Manual torque boost (Pr. 0, Pr. 46) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
6.3.2 Advanced magnetic flux vector control
(Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 800) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36
6.3.3 General-purpose magnetic flux vector control
(Pr. 71, Pr. 80, Pr. 81, Pr. 800) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
6.3.4 Slip compensation (Pr. 245 to Pr. 247) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
6.3.5 Stall prevention operation
(Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 156, Pr. 157, Pr. 277). . . . . . . . . . . . . . . . . . . . . . . . . 6-42
6.4 Limit the output frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50
6.4.1 Maximum and minimum frequency (Pr. 1, Pr. 2, Pr. 18) . . . . . . . . . . . . . . . . . . . . . 6-50
6.4.2 Avoid mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36) . . . . 6-52
6.5 Set V/F pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-54
6.5.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-54
6.5.2 Load pattern selection (Pr. 14). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-56
6.6 Frequency setting by external terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
6.6.1 Multi-speed setting operation
(Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58
6.6.2 Jog operation (Pr. 15, Pr. 16). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-61
6.6.3 Remote setting function (Pr. 59). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-65
6.7 Acceleration and deceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-69
6.7.1 Acceleration and deceleration time
(Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 147). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-69
6.7.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571) . . . . . . . . . . . . 6-73
6.7.3 Acceleration and deceleration pattern (Pr. 29) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-75
6.7.4 Shortest acceleration/deceleration (automatic acceleration/deceleration)
(Pr. 61 to Pr. 63, Pr. 292, Pr. 293) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-77
6.8 Selection and protection of a motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-80
6.8.1 Motor overheat protection (Electronic thermal O/L relay) (Pr. 9, Pr. 51). . . . . . 6-80
6.8.2 Applied motor (Pr. 71, Pr. 450). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-85
6.8.3 To exhibit the best performance of the motor performance
(offline auto tuning) (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 859). . . 6-88
6.9 Motor brake and stop operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
6.9.1 DC injection brake (Pr. 10 to Pr. 12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
6.9.2 Selection of a regenerative brake (Pr. 30, Pr. 70). . . . . . . . . . . . . . . . . . . . . . . . . . . 6-101
6.9.3 Stop selection (Pr. 250). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-103
6.9.4 Stop-on contact control function
(Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-105
6.9.5 Brake sequence function (Pr. 278 to Pr. 283, Pr. 292) . . . . . . . . . . . . . . . . . . . . . .6-109

Contents
X
6.10 Function assignment of external terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-114
6.10.1 Input terminal function selection (Pr. 178 to Pr. 184) . . . . . . . . . . . . . . . . . . . . . . 6-114
6.10.2 Inverter output shutoff signal (MRS signal, Pr. 17) . . . . . . . . . . . . . . . . . . . . . . . . . 6-117
6.10.3 Condition selection of function validity by second function selection signal
(RT, Pr. 155). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-119
6.10.4 Start signal selection (Terminal STF, STR, STOP, Pr. 250) . . . . . . . . . . . . . . . . . . . 6-120
6.10.5 Output terminal function selection (Pr. 190 to Pr. 192) . . . . . . . . . . . . . . . . . . . . 6-124
6.10.6 Detection of output frequency (SU, FU, Pr. 41 to Pr. 43). . . . . . . . . . . . . . . . . . . . 6-129
6.10.7 Output current detection function (Y12, Y13, Pr. 150 to Pr. 153) . . . . . . . . . . . 6-131
6.10.8 Remote output function (REM, Pr. 495 to Pr. 497) . . . . . . . . . . . . . . . . . . . . . . . . . 6-133
6.11 Monitor display and monitor output signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-136
6.11.1 Speed display and speed setting (Pr. 37). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-136
6.11.2 Monitor display selection of DU/PU and terminal AM
(Pr. 52, Pr. 158, Pr. 170, Pr. 171, Pr. 268, Pr. 563, Pr. 564) . . . . . . . . . . . . . . . . . . . . 6-138
6.11.3 Reference of the terminal AM (analog voltage output) (Pr. 55, Pr. 56) . . . . . . 6-146
6.11.4 Terminal AM calibration [calibration parameter Pr. 645, C1 (Pr. 901)]. . . . . . .6-148
6.12 Operation selection at power failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-151
6.12.1 Automatic restart
(Pr. 30, Pr. 57, Pr. 58, Pr. 96, Pr. 162, Pr. 165, Pr. 298, Pr. 299, Pr. 611) . . . . . . . . 6-151
6.12.2 Power failure-time deceleration-to-stop function (Pr. 261) . . . . . . . . . . . . . . . . 6-163
6.13 Operation setting at alarm occurrence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-167
6.13.1 Retry function (Pr. 65, Pr. 67 to Pr. 69). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-167
6.13.2 Input/output phase failure protection selection (Pr. 251, Pr. 872) . . . . . . . . . . 6-170
6.13.3 Earth (ground) fault detection at start (Pr. 249). . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-171
6.14 Energy saving operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-172
6.14.1 Optimum excitation control (Pr. 60) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-172
6.15 Motor noise, EMI measures, mechanical resonance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-173
6.15.1 PWM carrier frequency and soft-PWM control (Pr. 72, Pr. 240) . . . . . . . . . . . . . 6-173
6.15.2 Speed smoothing control (Pr. 653) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-174
6.16 Frequency setting by analog input (terminal 2, 4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-175
6.16.1 Analog input selection (Pr. 73, Pr. 267). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-175
6.16.2 Input filter time constant (Pr. 74) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-180
6.16.3 Bias and gain of frequency setting voltage (current)
[Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) to C7 (Pr. 905)] . . . . . . . . . . . . . . . . . . . . . . . 6-181
6.17 Misoperation prevention and parameter setting restriction . . . . . . . . . . . . . . . . . . . . . . . . 6-188
6.17.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75) . . . . . 6-188
6.17.2 Parameter write selection (Pr. 77). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-193
6.17.3 Reverse rotation prevention selection (Pr. 78). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-195
6.17.4 User groups (Pr. 160, Pr. 172 to Pr. 174) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-196
6.17.5 Password function (Pr. 296, Pr. 297). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-199
6.18 Selection of operation mode and operation location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-204
6.18.1 Operation mode selection (Pr. 79) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-204
6.18.2 Operation mode at power on (Pr. 79, Pr. 340) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-216
6.18.3 Start command source and frequency command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551) . . . . . . . . . . . . . . . 6-218

Contents
FR-E700SC EC XI
6.19 Communication operation and setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-227
6.19.1 PU connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-227
6.19.2 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 120, Pr. 123, Pr. 124, Pr. 549) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-232
6.19.3 Communication E²PROM write selection (Pr. 342) . . . . . . . . . . . . . . . . . . . . . . . . .6-238
6.19.4 Mitsubishi inverter protocol (computer link communication). . . . . . . . . . . . . . 6-239
6.19.5 Modbus-RTU communication
(Pr. 117, Pr. 118, Pr. 120, Pr. 122, Pr. 343, Pr. 549). . . . . . . . . . . . . . . . . . . . . . . . . . . 6-258
6.19.6 USB communication (Pr. 547, Pr. 548). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-276
6.20 Special operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-277
6.20.1 PID control (Pr. 127 to Pr. 134). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-277
6.20.2 Dancer control (Pr. 44, Pr. 45, Pr. 128 to Pr. 134) . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-289
6.20.3 Droop control (Pr. 286 to Pr. 287) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-297
6.20.4 Regeneration avoidance function
(Pr. 665, Pr. 882, Pr. 883, Pr. 885, Pr. 886) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-298
6.21 Useful functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-301
6.21.1 Cooling fan operation selection (Pr. 244) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-301
6.21.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259). . . . . . . . . . . . . . . . . . 6-302
6.21.3 Maintenance timer alarm (Pr. 503, Pr. 504) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-307
6.21.4 Current average value monitor signal (Pr. 555 to Pr. 557) . . . . . . . . . . . . . . . . . .6-308
6.21.5 Free parameters (Pr. 888, Pr. 889). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-312
6.22 Setting for the parameter unit, operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-313
6.22.1 RUN key rotation direction selection (Pr. 40) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-313
6.22.2 PU display language selection (Pr. 145) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-313
6.22.3 Operation panel frequency setting/key lock operation selection (Pr. 161) . . 6-314
6.22.4 Magnitude of frequency change setting (Pr. 295) . . . . . . . . . . . . . . . . . . . . . . . . . 6-315
6.22.5 Buzzer control (Pr. 990) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-316
6.22.6 PU contrast adjustment (Pr. 991) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-316
7Troubleshooting
7.1 List of alarm display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.2 Causes and corrective actions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.3 Reset method of protective function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
7.4 LED display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
7.5 Check and clear of the fault history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
7.6 Check first when you have troubles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
7.6.1 Motor does not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
7.6.2 Motor or machine generates abnormal noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
7.6.3 Inverter generates abnormal noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
7.6.4 Motor generates heat abnormally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
7.6.5 Motor rotates in opposite direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
7.6.6 Speed greatly differs from the setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
7.6.7 Acceleration/deceleration is not smooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
7.6.8 Speed varies during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
7.6.9 Operation mode is not changed properly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
7.6.10 Operation panel display is not operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
7.6.11 Motor current is too large . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
7.6.12 Speed does not accelerate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
7.6.13 Unable to write parameter setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31

Contents
XII
7.7 Meters and measuring methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
7.7.1 Measurement of powers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33
7.7.2 Measurement of voltages and use of PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
7.7.3 Measurement of currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
7.7.4 Use of CT and transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35
7.7.5 Measurement of inverter input power factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35
7.7.6 Measurement of converter output voltage (across terminals P/+ and N/–) . . 7-35
8 Maintenance and inspection
8.1 Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1.1 Daily inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1.2 Periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1.3 Daily and periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
8.1.4 Display of the life of the inverter parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8.1.5 Checking the inverter and converter modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
8.1.6 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.1.7 Replacement of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.1.8 Inverter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8.2 Measurements on the main circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
8.2.1 Insulation resistance test using megger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
8.2.2 Pressure test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
8.2.3 Measurement of voltages and currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
AAppendix
A.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A.1.1 1-phase, 200V class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A.1.2 3-phase, 400V class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A.2 Common specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
A.3 Outline dimension drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
A.3.1 FR-E720S-008SC to 030SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
A.3.2 FR-E720S-050SC and 080SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
A.3.3 FR-E720S-110SC and FR-E740-016SC to 095SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
A.3.4 FR-E740-120SC and 170SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
A.3.5 FR-E740-230SC and 300SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
A.3.6 Parameter unit FR-PU07 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
A.3.7 Parameter unit FR-PA07 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-10
A.4 Parameter list with instruction codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
A.5 Specification change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21
A.5.1 SERIAL number check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21

Product checking and part identification Inverter type
FR-E700SC EC 1 - 1
1 Product checking and part identification
Unpack the inverter and check the capacity plate on the front cover and the rating plate on the in-
verter side face to ensure that the product agrees with your order and the inverter is intact.
1.1 Inverter type
I002120E
Fig. 1-1: Inverter type FR-E700SC EC
FR --
E740 095 -EC
SC
Symbol Voltage Class
E720S Single-phase 230V
E740 Three-phase 400V
Symbol Type Number
008
to
300 3-digit display

Description of the case Product checking and part identification
1 - 2
1.2 Description of the case

Location of the capacity plate and the rating plate differs according to the inverter capacity.
Refer to the outline dimension drawing. (Refer to section A.3.)
I002121E
Fig. 1-2: Appearance and structure
NOTE For removal and reinstallation of covers, refer to section 2.1.
FR-E740-095SC-EC
FR-E740-095SC-EC
Capacity plate 
Front cover
Inverter type
Inverter type
Serial number
PU connector
(refer to section 3.5)
Rating plate 
Comb shaped wiring cover
(refer to section 2.2)
Control circuit terminal
block
(refer to section 3.4)
Main circuit terminal
block
( refer to section 3.3)
Voltage/current input switch
(refer to section 3.4)
Cooling fan
(refer to section 8.1.7)
Operation panel
(refer to section 4.3)
USB connector cover
(refer to section 3.6)
PU connector cover
(refer to section 3.5)
USB connector
(mini-B connector)
(refer to section 3.6)
Connector for plug-in
option connection
(refer to the instruction
manual of options.)
Changing the control logic
jumper connector
(refer to section 3.4.4)
Serial number
Input rating
Output rating

Product checking and part identification Description of the case
FR-E700SC EC 1 - 3
1.2.1 Accessory
Fan cover fixing screws
Capacity Screw Size [mm] Number
FR-E720S-050SC to 110SC M3 × 35 1
FR-E740-040SC to 095SC M3 × 35 1
FR-E740-120SC to 300SC M3 × 35 2
Tab. 1-1: Fan cover fixing screws
NOTES Inverters FR-E720S-008SC to 030SC and FR-E740-026SC or less are not provided with the cooling
fan. Therefore the fan cover fixing screws are not delivered with these models.
For removal and reinstallation of the cooling fans, refer to section 8.1.7.

Description of the case Product checking and part identification
1 - 4