Mitsubishi Electric fr-e700 series User manual

MITSUBISHI ELECTRIC
MITSUBISHI ELECTRIC
INDUSTRIAL AUTOMATION
FR-E700
Frequency Inverter
Instruction Manual
FR-E720S EC
FR-E740 EC
Art. No: 213994
24 09 2009
Version C

Instruction Manual
Inverter FR-E700 EC
Art. no.: 213994
Version Changes / Additions / Corrections
A 11/2007 pdp —
B 08/2008 pdp General Description of the 3-phase frequency inverter for 400 V
Expansion of performance classes through the frequency inver-
ter FR-E740-230 and 300
Revision and correction of individual sections
C 09/2009 pdp – akl General
section 7.6
Expansion of the range of models by the inverters FR-E720S for
connection to a single-phase power supply
Check first when you have troubles

FR-E700 EC I
Thank you for choosing this Mitsubishi inverter.
This instruction manual provides instructions for advanced use of the FR-E700 series inverters.
Incorrect 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 instruction manual carefully and can use the equipment correctly. Do not use the inverter un-
til you have a full knowledge of the equipment, safety information and instructions. In this in-
struction 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.
mWARNING:
Assumes that incorrect handling may cause hazardous conditions, resulting in death
or severe injury.
bCAUTION:
Assumes that incorrect handling may cause hazardous conditions, resulting in medi-
um or slight injury, or may cause physical damage only.

II
Electric Shock Prevention
mWARNING:
●
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.
● 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.
● Perform setting dial and key operations with dry hands to prevent an electric shock.
Otherwise 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 no t 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-E700 EC III
Fire Prevention
Injury Prevention
bCAUTION:
●
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.). Mounting 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 +, –. 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.
bCAUTION:
●
Apply only the voltage specified in the instruction manual to each terminal. Other-
wise, 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 und Installation
Temperature applicable for a short time, e.g. in transit.
Wiring
bCAUTION:
●
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)
bCAUTION:
●
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.

FR-E700 EC V
Trial run
Operation
bCAUTION:
●
Before starting operation, confirm and adjust the parameters. A failure to do so
may cause some machines to make unexpected motions.
mWARNING:
●
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 func-
tion 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.
bCAUTION:
●
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 the effect of electromagnetic interference and follow
the accepted EMC procedures for proper installation of frequency inverters. Oth-
erwise nearby electronic equipment may be affected.
● Take appropriate measures regarding harmonics. Otherwise this can endanger
compensation 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
inspection 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
partially open. Never run the inverter in this status. Always replace the cover and follow this in-
struction manual when operating the inverter.
bCAUTION:
●
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 manual, then reset the inverter, and resume operation.
bCAUTION:
●
Do not carry out a megger (insulation resistance) test on the control circuit of the
inverter. It will cause a failure.
bCAUTION:
●
Treat as industrial waste.

Contents
FR-E700 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-E740-016 to FR-E740-170 . . . . . . . . . . . . . . . . . . .2-1
2.1.2 FR-E740-230 and FR-E740-300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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
3 Wiring
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 terminal. . . . . . . . . . . . . . . . . . . . . . . . . . .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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
3.4.3 Changing the control logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Contents
VIII
3.5 PU connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
3.5.1 Connecting the operation panel using a connection cable . . . . . . . . .3-23
3.5.2 RS485 communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
3.6 USB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25
3.7 Connection of stand-alone option units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26
3.7.1 Magnetic contactors (MC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26
3.7.2 Connection of a dedicated external brake
resistor FR-ABR and MRS
(FR-E720S-030 or more, FR-E740-016 or more) . . . . . . . . . . . . . . . .3-28
3.7.3 Connection of a brake unit FR-BU2 . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
3.7.4 Connection of the high power factor converter FR-HC . . . . . . . . . . . .3-35
3.7.5 Connection of the power regeneration common converter FR-CV . . .3-36
3.7.6 Connection of the power improving DC reactor FR-HEL . . . . . . . . . .3-37
3.7.7 Installation of a reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-37
3.8 Electromagnetic compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38
3.8.1 Leakage currents and countermeasures. . . . . . . . . . . . . . . . . . . . . . .3-38
3.8.2 Inverter-generated noises and their reduction techniques . . . . . . . . .3-42
3.8.3 Power supply harmonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-45
3.8.4 Inverter-driven 400V class motor . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-46
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

Contents
FR-E700 EC IX
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
(Advance 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 the operation panel (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
X
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. 28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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. . . . . . . . . . . . . . . . . .6-73
6.7.3 Acceleration and deceleration pattern (Pr. 29, Pr. 140 to Pr. 143) . . .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

Contents
FR-E700 EC XI
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
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) . . . . . . . .6-162
6.13 Operation setting at alarm occurrence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-166
6.13.1 Retry function (Pr. 65, Pr. 67 to Pr. 69). . . . . . . . . . . . . . . . . . . . . . .6-166
6.13.2 Input/output phase failure protection selection (Pr. 251, Pr. 872) . . .6-169
6.13.3 Earth (ground) fault detection at start (Pr. 249). . . . . . . . . . . . . . . . .6-170
6.14 Energy saving operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-171
6.14.1 Optimum excitation control (Pr. 60) . . . . . . . . . . . . . . . . . . . . . . . . .6-171
6.15 Motor noise, EMI measures, mechanical resonance . . . . . . . . . . . . . . . . . . .6-172
6.15.1 PWM carrier frequency and soft-PWM control (Pr. 72, Pr. 240) . . . .6-172
6.15.2 Speed smoothing control (Pr. 653) . . . . . . . . . . . . . . . . . . . . . . . . . .6-173

Contents
XII
6.16 Frequency setting by analog input (terminal 2, 4) . . . . . . . . . . . . . . . . . . . . .6-174
6.16.1 Analog input selection (Pr. 73, Pr. 267) . . . . . . . . . . . . . . . . . . . . . .6-174
6.16.2 Input filter time constant (Pr. 74) . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-179
6.16.3 Bias and gain of frequency setting voltage (current)
[Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) to C7 (Pr. 905)] . . . . . . . . . .6-180
6.17 Misoperation prevention and parameter setting restriction. . . . . . . . . . . . . . .6-187
6.17.1 Reset selection/disconnected PU detection/PU stop selection
(Pr. 75) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-187
6.17.2 Parameter write selection (Pr. 77). . . . . . . . . . . . . . . . . . . . . . . . . . .6-192
6.17.3 Reverse rotation prevention selection (Pr. 78) . . . . . . . . . . . . . . . . .6-194
6.17.4 User groups (Pr. 160, Pr. 172 to Pr. 174) . . . . . . . . . . . . . . . . . . . . .6-195
6.18 Selection of operation mode and operation location . . . . . . . . . . . . . . . . . . .6-198
6.18.1 Operation mode selection (Pr. 79) . . . . . . . . . . . . . . . . . . . . . . . . . .6-198
6.18.2 Operation mode at power on (Pr. 79, Pr. 340) . . . . . . . . . . . . . . . . .6-210
6.18.3 Start command source and frequency command source during
communication operation
(Pr. 338, Pr. 339, Pr. 550, Pr. 551) . . . . . . . . . . . . . . . . . . . . . . . . . .6-212
6.19 Communication operation and setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-221
6.19.1 PU connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-221
6.19.2 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 120, Pr. 123, Pr. 124, Pr. 549). . . . . . . . . . . . . . . . . .6-226
6.19.3 Communication E²PROM write selection (Pr. 342) . . . . . . . . . . . . . .6-232
6.19.4 Mitsubishi inverter protocol (computer link communication) . . . . . . .6-233
6.19.5 Modbus-RTU communication
(Pr. 117, Pr. 118, Pr. 120, Pr. 122, Pr. 343, Pr. 549) . . . . . . . . . . . .6-251
6.19.6 USB communication (Pr. 547, Pr. 548) . . . . . . . . . . . . . . . . . . . . . . .6-269
6.20 Special operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-270
6.20.1 PID control (Pr. 127 to Pr. 134). . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-270
6.20.2 Dancer control (Pr. 44, Pr. 45, Pr. 128 to Pr. 134) . . . . . . . . . . . . . .6-282
6.20.3 Droop control (Pr. 286 to Pr. 287) . . . . . . . . . . . . . . . . . . . . . . . . . .6-291
6.20.4 Regeneration avoidance function
(Pr. 665, Pr. 882, Pr. 883, Pr. 885, Pr. 886) . . . . . . . . . . . . . . . . . . .6-292
6.21 Useful functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-295
6.21.1 Cooling fan operation selection (Pr. 244) . . . . . . . . . . . . . . . . . . . . .6-295
6.21.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259) . . . . . . . .6-296
6.21.3 Maintenance timer alarm (Pr. 503, Pr. 504) . . . . . . . . . . . . . . . . . . .6-300
6.21.4 Current average value monitor signal (Pr. 555 to Pr. 557) . . . . . . . .6-301
6.21.5 Free parameters (Pr. 888, Pr. 889) . . . . . . . . . . . . . . . . . . . . . . . . . .6-305

Contents
FR-E700 EC XIII
6.22 Setting for the parameter unit, operation panel . . . . . . . . . . . . . . . . . . . . . . .6-306
6.22.1 RUN key rotation direction selection (Pr. 40) . . . . . . . . . . . . . . . . . .6-306
6.22.2 PU display language selection (Pr. 145) . . . . . . . . . . . . . . . . . . . . . .6-306
6.22.3 Operation panel frequency setting/key lock operation selection
(Pr. 161) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-307
6.22.4 Magnitude of frequency change setting (Pr. 295) . . . . . . . . . . . . . . .6-308
6.22.5 Buzzer control (Pr. 990) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-309
6.22.6 PU contrast adjustment (Pr. 991) . . . . . . . . . . . . . . . . . . . . . . . . . . .6-309
7 Troubleshooting
7.1 List of alarm display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
7.2 Causes and corrective actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
7.3 Reset method of protective function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16
7.4 LED display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-17
7.5 Check and clear of the fault history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18
7.6 Check first when you have troubles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-20
7.6.1 Motor does not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-20
7.6.2 Motor or machine generates abnormal noise . . . . . . . . . . . . . . . . . . .7-22
7.6.3 Inverter generates abnormal noise . . . . . . . . . . . . . . . . . . . . . . . . . . .7-22
7.6.4 Motor generates heat abnormally . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-23
7.6.5 Motor rotates in opposite direction . . . . . . . . . . . . . . . . . . . . . . . . . . .7-23
7.6.6 Speed greatly differs from the setting . . . . . . . . . . . . . . . . . . . . . . . . .7-23
7.6.7 Acceleration/deceleration is not smooth . . . . . . . . . . . . . . . . . . . . . . .7-24
7.6.8 Speed varies during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-25
7.6.9 Operation mode is not changed properly . . . . . . . . . . . . . . . . . . . . . .7-26
7.6.10 Operation panel display is not operating. . . . . . . . . . . . . . . . . . . . . . .7-26
7.6.11 Motor current is too large . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-27
7.6.12 Speed does not accelerate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-28
7.6.13 Unable to write parameter setting . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-29
7.7 Meters and measuring methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-30
7.7.1 Measurement of powers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-31
7.7.2 Measurement of voltages and use of PT . . . . . . . . . . . . . . . . . . . . . . 7-32
7.7.3 Measurement of currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-32
7.7.4 Use of CT and transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-33
7.7.5 Measurement of inverter input power factor . . . . . . . . . . . . . . . . . . . .7-33
7.7.6 Measurement of converter output voltage
(across terminals + and –). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-33

Contents
XIV
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
A Appendix
A.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A.1.1 1-phase, 200V class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
8.2.4 3-phase, 400V class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A.2 Common specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
A.3 Outline dimension drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
A.3.1 FR-E720S-008 to 030 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
A.3.2 FR-E720S-050 and 080 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
A.3.3 FR-E720S-110 and FR-E740-016 to 095 . . . . . . . . . . . . . . . . . . . . . . A-7
A.3.4 FR-E740-120 and 170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
A.3.5 FR-E740-230 and 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

Product Checking and Part Identification Inverter Type
FR-E700 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
inverter side face to ensure that the product agrees with your order and the inverter is intact.
1.1 Inverter Type
I001905E
Fig. 1-1: Inverter Type FR-E700 EC
Symbol Voltage Class
E720S Single-phase 230V
E740 Three-phase 400V class
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.)
I001906E
Fig. 1-2: Appearance and Structure
NOTE For removal and reinstallation of covers, refer to section 2.1.
Capacity plate 
Front cover
Inverter type
Inverter type
Serial number
PU connector
(siehe Abschn. 3.5)
Rating plate 
Comb shaped
wiring cover
(refer to section 2.2)
Standard 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 3.4.3)
Serial number
Input rating
Output rating