Mitsubishi Electric FR-S520E Series User manual

TRANSISTORIZED INVERTER
FR-S500
INSTRUCTION MANUAL (Detailed)
FUNCTIONS
Chapter 2
HEAD OFFICE:TOKYO BLDG MARUNOUCHI TOKYO 100-8310
WIRING
Chapter 1
PROTECTIVE
FUNCTIONS
Chapter 3
SPECIFICATIONS
Chapter 4
FR-S500E
TRANSISTORIZED INVERTER INSTRUCTION MANUAL (Detailed)
C
SIMPLE INVERTER
FR-S520E-0.1K to 3.7K (-C)
FR-S540E-0.4K to 3.7K
FR-S520SE-0.1K to 1.5K
FR-S510WE-0.1K to 0.75K
IB(NA)-0600152E-C (0706) MEE Printed in Japan Specifications subject to change without notice.

A-1
1. Electric Shock Prevention
Thank you for choosing this Mitsubishi Transistorized inverter.
This instruction manual (detailed) provides instructions for advanced use of the FR-
S500 series inverters.
Incorrect handling might cause an unexpected fault. Before using the inverter, always
read this instruction manual and the instruction manual (basic) [IB-0600151E] packed
with the product carefully to use the equipment to its optimum.
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter until you have read
through this instruction manual (basic) 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.
In this instruction manual (detailed), the safety instruction levels are classified into
"WARNING" and "CAUTION".
Assumes that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Assumes that incorrect handling may cause hazardous
conditions, resulting in medium or slight injury, or may cause
physical damage only.
Note that even the level may lead to a serious consequence
according to conditions. Please follow the instructions of both levels because they are
important to personnel safety.
WARNING
zWhile power is on or when the inverter is running, do not open the front cover. You
may get an electric shock.
zDo not run the inverter with the front cover or wiring cover removed. Otherwise,
you may access the exposed high-voltage terminals or the charging part of the
circuitry and get an electric shock. Also, the inverter's ability to withstand
earthquakes will deteriorate.
zEven 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.
zBefore starting wiring or inspection, check to make sure that the 3-digit LED inverter
monitor is off, wait for at least 10 minutes after the power supply has been switched
off, and check to make sure that there are no residual voltage using a tester or the
like.
zThis inverter must be earthed (grounded). Earthing (grounding) must conform to
the requirements of national and local safety regulations and electrical codes.
(NEC section 250, IEC 536 class 1 and other applicable standards)
zAny person who is involved in the wiring or inspection of this equipment should be
fully competent to do the work.
zAlways install the inverter before wiring. Otherwise, you may get an electric shock
or be injured.
zPerform setting dial and key operations with dry hands to prevent an electric
shock.
zDo not subject the cables to scratches, excessive stress, heavy loads or pinching.
Otherwise, you may get an electric shock.
zDo not change the cooling fan while power is on. It is dangerous to change the
cooling fan while power is on.
zWhen you have removed the front cover, do not touch the connector above the 3-
digit monitor LED display. Otherwise, you get an electrick shock.
WARNING
CAUTION
CAUTION

A-2
2. Fire Prevention
3. Injury Prevention
4. Additional Instructions
Also note the following points to prevent an accidental failure, injury, electric shock,
etc.
(1) Transportation and installation
CAUTION
zInstall the inverter and brake resistor on an incombustible wall without holes, etc.
Installing the inverter and brake resistor directly on or near a combustible surface could
lead to a fire.
zIf the inverter has become faulty, switch off the inverter power. A continuous flow of
large current could cause a fire.
zWhen 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.
z
Do not connect the resistor directly to the DC terminals P and N. This could cause a fire.
CAUTION
zApply only the voltage specified in the instruction manual to each terminal to
prevent damage, etc.
zAlways connect to the correct terminal to prevent damage, etc.
zAlways make sure that polarity is correct to prevent damage, etc.
zWhile power is on or for some time after power-off, do not touch the inverter as it is
hot and you may get burnt.
CAUTION
zWhen carrying products, use correct lifting gear to prevent injury.
zDo not stack the inverter boxes higher than the number recommended.
zEnsure that installation position and material can withstand the weight of the
inverter. Install according to the information in the instruction manual.
zDo not install or operate if the inverter is damaged or has parts missing.
zWhen carrying the inverter, do not hold it by the front cover or setting dial; it may
fall off or fail.
zDo not stand or rest heavy objects on the inverter.
zCheck the inverter mounting orientation is correct.
zPrevent other conductive bodies as screws and metal fragments or other
flammable substance as oil from entering the inverter.
zAs the inverter is a precision instrument, do not drop or subject it to impact.
zUse the inverter under the following environmental conditions: This could cause
the inverter damage.
*Temperatures applicable for a short time, e.g. in transit.
Environment
Ambient
Temperature
-10°C to +50°C (non-freezing)
(-10°C to +40°C for totally enclosed structure feature)
Ambient humidity 90%RH maximum (non-condensing)
Storage
temperature -20°C to +65°C *
Atmosphere Indoors (free from corrosive gas, flammable gas, oil mist,
dust and dirt)
Altitude/
vibration Max.1000m above sea level 5.9m/s2or less

A-3
(2) Wiring
(3) Trial run
(4) Operation
CAUTION
zDo not fit capacitive equipment such as power factor correction capacitor,
capacitor type filter (option FR-BIF(-H)) or surge suppressor to the output of the
inverter.
zThe connection orientation of the output cables U, V, W to the motor will affect the
direction of rotation of the motor.
CAUTION
zCheck all parameters, and ensure that the machine will not be damaged by a
sudden start-up.
zWhen the load GD2is small (at the motor GD or smaller) for 400V from 1.5K to 3.7K, the
output current may vary when the output frequency is in the 20Hz to 30Hz range.
If this is a problem, set the Pr.72 "PWM frequency selection" to 6kHz or higher.
(When setting the PWM to a higher frequency, check for noise or leakage current
problem and take countermeasures against it.)
WARNING
zWhen you have chosen the retry function, stay away from the equipment as it will
restart suddenly after an alarm stop.
zSince the [STOP] key is valid only when functions are set (refer to page 115),
provide a circuit and switch separately to make an emergency stop (power off,
mechanical brake operation for emergency stop, etc).
zMake sure that the start signal is off before resetting the inverter alarm. A failure to
do so may restart the motor suddenly.
zThe load used should be a three-phase induction motor only. Connection of any
other electrical equipment to the inverter output may damage the equipment.
zDo not modify the equipment.
zDo not perform parts removal which is not instructed in this manual. Doing so may
lead to fault or damage of the inverter.

A-4
(5) Emergency stop
(6) Maintenance, inspection and parts replacement
(7) Disposing of the inverter
(8) General instructions
CAUTION
zThe electronic thermal relay function does not guarantee protection of the motor
from overheating.
zDo not use a magnetic contactor on the inverter input for frequent starting/stopping
of the inverter.
zUse a noise filter to reduce the effect of electromagnetic interference. Otherwise
nearby electronic equipment may be affected.
zTake measures to suppress harmonics. Otherwise power supply harmonics from
the inverter may heat/damage the power capacitor and generator.
zWhen a 400V class motor is inverter-driven, please use an insulation-enhanced
motor or measures taken to suppress surge voltages. Surge voltages attributable to
the wiring constants may occur at the motor terminals, deteriorating the insulation of
the motor.
zWhen parameter clear or all clear is performed, reset the required parameters
before starting operations. Each parameter returns to the factory setting.
zThe inverter can be easily set for high-speed operation. Before changing its
setting, fully examine the performances of the motor and machine.
zIn addition to the inverter's holding function, install a holding device to ensure safety.
zBefore running an inverter which had been stored for a long period, always
perform inspection and test operation.
CAUTION
zProvide a safety backup such as an emergency brake which will prevent the
machine and equipment from hazardous conditions if the inverter fails.
zWhen 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.
zWhen any protective function is activated, take the appropriate corrective action,
then reset the inverter, and resume operation.
CAUTION
zDo not carry out a megger (insulation resistance) test on the control circuit of the
inverter.
CAUTION
zTreat as industrial waste.
Many of the diagrams and drawings in this instruction manual (detailed) show the inverter
without a cover, or partially open. Never operate the inverter in this manner. Always replace
the cover and follow this instruction manual (detailed) when operating the inverter.

I
CONTENTS
CONTENTS
1. WIRING 1
1.1 Standard connection diagram and terminal specifications ..2
1.1.1 Standard connection diagram ....................................................................... 2
1.1.2 Explanation of main circuit terminals............................................................. 3
1.2 Main circuit terminals ...............................................................6
1.2.1 Terminal block layout .................................................................................... 6
1.2.2 Cables, wiring length, and crimping terminals............................................... 8
1.2.3 Wiring instructions ......................................................................................... 9
1.2.4 Selection of peripheral devices ................................................................... 10
1.2.5 Leakage current and installation of earth (ground) leakage circuit breaker 12
1.2.6 Power-off and magnetic contactor (MC)...................................................... 16
1.2.7 Regarding the installation of the reactor...................................................... 17
1.2.8 Regarding noise and the installation of a noise filter................................... 18
1.2.9 Earthing (Grounding) precautions ............................................................... 19
1.2.10 Power supply harmonics ............................................................................. 20
1.2.11 Harmonic suppression guideline ................................................................. 21
1.2.12 Inverter-driven 400V class motor ................................................................ 25
1.3 How to use the control circuit terminals ...............................26
1.3.1 Terminal block layout .................................................................................. 26
1.3.2 Wiring instructions ....................................................................................... 26
1.3.3 Changing the control logic........................................................................... 27
1.4 Input terminals.........................................................................29
1.4.1 Run (start) and stop (STF, STR, STOP) ..................................................... 29
1.4.2 Connection of frequency setting potentiometer and
output frequency meter (10, 2, 5, 4, AU)..................................................... 32
1.4.3 External frequency selection (REX, RH, RM, RL) ....................................... 33
1.4.4 Indicator connection and adjustment (FM) .................................................. 35
1.4.5 Control circuit common terminals (SD, 5, SE)............................................. 37
1.4.6 Signal inputs by contactless switches ......................................................... 37
1.5 How to use the input signals
(assigned terminals RL, RM, RH, STR)..................................38
1.5.1 Multi-speed setting (RL, RM, RH, REX signals):
Pr. 60 to Pr. 63 setting "0, 1, 2, 8"
Remote setting (RL, RM, RH signals):
Pr. 60 to Pr. 63 setting "0, 1, 2" ................................................................... 38
1.5.2 Second function selection (RT signal): Pr. 60 to Pr. 63 setting "3" ............. 38

II
1.5.3 Current input selection "AU signal": Pr. 60 to Pr. 63 setting "4".................. 38
1.5.4 Start self-holding selection (STOP signal): Pr. 60 to Pr. 63 setting "5"....... 39
1.5.5 Output shut-off (MRS signal): Pr. 60 to Pr. 63 setting "6" ........................... 39
1.5.6 External thermal relay input: Pr. 60 to Pr. 63 setting "7"............................. 40
1.5.7 Jog operation (JOG signal): Pr. 60 to Pr. 63 setting "9".............................. 40
1.5.8 Reset signal: Pr. 60 to Pr. 63 setting "10"................................................... 41
1.5.9 PID control valid terminal: Pr. 60 to Pr. 63 setting "14"............................... 42
1.5.10 PU operation/external operation switchover: Pr. 60 to Pr. 63 setting "16".. 42
1.6 Connection to the stand-alone option .................................. 43
1.6.1 Connection of the dedicated external brake resistor (option) (FR-S520E-0.4K
to 3.7K only)................................................................................................ 43
1.6.2 Connection of the brake unit (BU type)....................................................... 44
1.6.3 Connection of the high power factor converter (FR-HC)............................. 45
1.6.4 Connection of the power regeneration common converter (FR-CV)........... 46
1.7 Handling of the RS-485 connector ........................................47
1.7.1 Connection of the parameter unit (FR-PU04) ............................................. 47
1.7.2 Wiring of RS-485 communication ............................................................... 48
1.8 Design information ................................................................. 51
1.9 Failsafe of the system which uses the inverter....................52
2. FUNCTIONS 55
2.1 Function (Parameter) list........................................................56
2.2 List of parameters classified by purpose of use..................69
2.3 Explanation of functions (parameters) ................................. 71
2.3.1 Torque boost (Pr. 0 , Pr. 46 ) ...................................................................... 71
2.3.2 Maximum and minimum frequency (Pr. 1 , Pr. 2 ) ...................................... 72
2.3.3 Base frequency, base frequency voltage (Pr.3 , Pr.19 , Pr.47 ).................. 73
2.3.4 Multi-speed operation (Pr. 4, Pr. 5, Pr. 6, Pr. 24 to Pr. 27, Pr. 80 to Pr. 87)75
2.3.5 Acceleration/deceleration time (Pr. 7 , Pr. 8 , Pr. 20 , Pr. 44 , Pr. 45 ) ....... 76
2.3.6 Selection and protection of a motor (Pr. 9 , Pr. 71 , H7 )............................ 78
2.3.7 DC injection brake (Pr. 10 , Pr. 11 , Pr. 12 ) ............................................... 80
2.3.8 Starting frequency (Pr. 13 )......................................................................... 81
2.3.9 Load pattern selection (Pr. 14 )................................................................... 82
2.3.10 Jog operation (Pr.15 , Pr.16 )...................................................................... 83
2.3.11 RUN key rotation direction selection (Pr.17 ).............................................. 83
2.3.12 Stall prevention function and current limit function (Pr. 21 ) ....................... 84
2.3.13 Stall prevention (Pr. 22 , Pr. 23 , Pr. 28 ) .................................................... 86

III
CONTENTS
2.3.14 Acceleration/deceleration pattern (Pr. 29 ).................................................. 88
2.3.15 Extended function display selection (Pr. 30 ) .............................................. 89
2.3.16 Frequency jump (Pr. 31 to Pr. 36 )............................................................. 89
2.3.17 Speed display (Pr. 37 )................................................................................ 90
2.3.18 Biases and gains of the frequency setting voltage (current)
(Pr. 38 , Pr. 39 , C2 to C7 )......................................................................... 91
2.3.19 Start-time earth (ground) fault detection selection (Pr. 40 ) ........................ 95
2.4 Output terminal function ........................................................95
2.4.1 Up-to-frequency sensitivity (Pr. 41 )............................................................ 95
2.4.2 Output frequency detection (Pr. 42 , Pr. 43 )............................................... 96
2.5 Current detection function .....................................................97
2.5.1 Output current detection functions (Pr. 48 , Pr. 49 ).................................... 97
2.5.2 Zero current detection (Pr. 50 , Pr. 51 )....................................................... 98
2.6 Display function ......................................................................99
2.6.1 Monitor display (Pr. 52 , Pr. 54 ).................................................................. 99
2.6.2 Setting dial function selection (Pr. 53 )...................................................... 100
2.6.3 Monitoring reference (Pr. 55 , Pr. 56 )....................................................... 101
2.7 Restart operation function ...................................................101
2.7.1 Restart setting (Pr. 57 , Pr. 58 , H6 ) ......................................................... 101
2.8 Additional function................................................................104
2.8.1 Remote setting function selection (Pr. 59 ) ............................................... 104
2.9 Terminal function selection..................................................108
2.9.1 Input terminal function selection (Pr. 60 , Pr. 61 , Pr. 62 , Pr. 63 ) ............ 108
2.9.2 Output terminal function selection (Pr. 64 , Pr. 65 ) .................................. 110
2.10 Operation selection function................................................111
2.10.1 Retry function (Pr. 66 , Pr. 67 , Pr. 68 , Pr. 69 ) ........................................ 111
2.10.2 PWM carrier frequency and long wiring mode (Pr. 70 , Pr. 72 )................ 113
2.10.3 Voltage input selection (Pr. 73 ) ................................................................ 114
2.10.4 Input filter time constant (Pr. 74 ) .............................................................. 115
2.10.5 Reset selection/PU stop selection (Pr. 75 )............................................... 115
2.10.6 Cooling fan operation selection (Pr. 76 ) ................................................... 117
2.10.7 Parameter write disable selection (Pr. 77 ) ............................................... 118
2.10.8 Reverse rotation prevention selection (Pr. 78 )......................................... 119
2.10.9 Operation mode selection (Pr. 79 ) ........................................................... 119
2.10.10PID control (Pr. 88 to Pr. 94 )................................................................... 123
2.11 Auxiliary function ..................................................................131
2.11.1 Slip compensation (Pr. 95 , Pr. 96 , Pr. 97 ).............................................. 131

IV
2.11.2 Automatic torque boost selection (Pr. 98 )................................................ 132
2.11.3 Motor primary resistance (Pr. 99 ) ............................................................ 133
2.12 Maintenance function ........................................................... 133
2.12.1 Maintenance output function (H1, H2 ) ..................................................... 133
2.12.2 Current average value monitor signal (H3, H4, H5)................... 134
2.13 Brake parameters (FR-S520E-0.4K to 3.7K only) ............... 137
2.13.1 Regenerative braking operation (b1 , b2 ) ................................................ 137
2.14 Calibration parameters ......................................................... 138
2.14.1 Meter (frequency meter) calibration (C1 )................................................. 138
2.15 Clear parameters................................................................... 141
2.15.1 Parameter clear (CLr ) .............................................................................. 141
2.15.2 Alarm history clear (ECL )......................................................................... 141
2.16 Communication parameters................................................. 142
2.16.1 Communication settings (n1 to n7 , n11 ) ................................................ 144
2.16.2 Operation and speed command source (n8 , n9 ) .................................... 160
2.16.3 Link startup mode selection (n10 )............................................................ 161
2.16.4 EEPROM write selection (n12 ) ................................................................ 163
2.17 Parameter unit (FR-PU04) setting........................................ 164
2.17.1 PU display language selection (n13 ) ....................................................... 164
2.17.2 PU buzzer control (n14 ) ........................................................................... 164
2.17.3 PU contrast adjustment (n15 ) .................................................................. 165
2.17.4 PU main display screen data selection (n16 )........................................... 165
2.17.5 Disconnected PU detection/PU setting lock selection (n17 ) .................... 166
3. PROTECTIVE FUNCTIONS 169
3.1 Errors (Alarms)...................................................................... 170
3.1.1 Error (alarm) definitions ............................................................................ 171
3.1.2 To know the operating status at the occurrence of alarm
(only when FR-PU04 is used) ................................................................... 179
3.1.3 Correspondence between digital and actual characters ........................... 179
3.1.4 Resetting the inverter................................................................................ 179
3.1.5 Checking of the alarm history ................................................................... 180
3.2 Troubleshooting.................................................................... 181
3.2.1 Motor remains stopped ............................................................................. 181
3.2.2 Motor rotates in opposite direction............................................................ 182
3.2.3 Speed greatly differs from the setting ....................................................... 182

V
CONTENTS
3.2.4 Acceleration/deceleration is not smooth.................................................... 182
3.2.5 Motor current is large ................................................................................ 182
3.2.6 Speed does not increase........................................................................... 182
3.2.7 Speed varies during operation .................................................................. 182
3.2.8 Operation mode is not changed properly .................................................. 183
3.2.9 Operation panel display is not operating................................................... 183
3.2.10 Parameter write cannot be performed....................................................... 183
3.2.11 Motor produces annoying sound ............................................................... 183
3.3 Precautions for maintenance and inspection.....................184
3.3.1 Precautions for maintenance and inspection ............................................ 184
3.3.2 Inspection item .......................................................................................... 184
3.3.3 Periodic inspection .................................................................................... 184
3.3.4 Insulation resistance test using megger .................................................... 185
3.3.5 Pressure test ............................................................................................. 185
3.3.6 Daily and periodic inspection..................................................................... 186
3.3.7 Checking the inverter and converter module............................................. 188
3.3.8 Replacement of parts ................................................................................ 189
3.3.9 Measurement of main circuit voltages, currents and powers .................... 192
4. SPECIFICATIONS 195
4.1 Specification list....................................................................196
4.1.1 Ratings ...................................................................................................... 196
4.1.2 Common specifications ............................................................................. 200
4.2 Outline dimension drawings ................................................202
APPENDIX 205
APPENDIX 1 Parameter instruction code list ...............................206

1
Chapter 2
Chapter 3
Chapter 4
Chapter 1
1. WIRING
This chapter explains the basic "wiring" for use of this product. Always
read the instructions before use.
For description of "installation", refer to the instruction manual (basic).
1.1 Standard connection diagram and terminal
specifications ..................................................... 2
1.2 Main circuit terminals ........................................ 6
1.3 How to use the control circuit terminals.......... 26
1.4 Input terminals.................................................... 29
1.5 How to use the input signals (assigned
terminals RL, RM, RH, STR) .............................. 38
1.6 Connection to the stand-alone option.............. 43
1.7 Handling of the RS-485 connector...................... 47
1.8 Design information............................................. 51
<Abbreviations>
•PU
Operation panel and parameter unit (FR-PU04)
•Inverter
Mitsubishi transistorized inverter FR-S500 series
•FR-S500
Mitsubishi transistorized inverter FR-S500 series
•Pr.
Parameter number

2
Standard connection diagram and terminal specifications
1.1 Standard connection diagram and terminal
specifications
1.1.1 Standard connection diagram
zThree-phase 200V power input
zThree-phase 400V power input
REMARKS
*1. The N/- terminal is not provided for the FR-S520E-0.1K to 0.75K.
*2. The PR terminal is provided for the FR-S520E-0.4K to 3.7K.
*3. Not needed when the setting dial is used for calibration.
Used when calibration must be made near the frequency meter for such a reason as a remote frequency meter.
However, the frequency meter needle may not deflect to full-scale if the calibration resistor is connected.
In this case, use this resistor and setting dial together.
*4. You can switch the position of sink and source logic. (Refer to page 27.)
*5. When the setting potentiometer is used frequently, use a 2W1kΩpotentiometer.
*6. The terminal functions change with input terminal function selection (Pr. 60 to Pr. 63). (Refer to page 108.)
(RES, RL, RM, RH, RT, AU, STOP, MRS, OH, REX, JOG, X14, X16, (STR) signal selection)
*7. The terminal function changes according to the setting of output terminal function selection (Pr. 64, Pr. 65).
(Refer to page 110.) (RUN, SU, OL, FU, RY, Y12, Y13, FDN, FUP, RL, Y93, Y95, LF, ABC signal selection)
Inverter
Motor
IM
U
V
W
RUN
SE
Running
Alarm output
Operation status
output
Open
collector
Open collector
outputs
A
B
C
Frequency setting
potentiometer
1/2W1kW
Frequency setting signals (Analog)
10
2
2
3
1
4 to 20mADC(+) 4
0 to 5VDC
0 to 10VDC
5
Current input(-)
(+5V)
(Common)
(4 to 20mADC)
Selected
output
common
Low speed RL
MCCB MC
DC reactor
(FR-HEL/BEL: Option)
Jumper: Remove this
jumper when DC reactor
is connected.
P1
SINK
SOURCE
Multi-speed
selection
Take care not to short
terminals PC-SD.
RS-485
Connector
Three-phase AC
power supply
Control circuit terminalMain circuit terminal
When using the current input as
the frequency setting signal, set
"4" in any of Pr. 60 to Pr. 63 (input
terminal function selection), assign
AU (current input selection) to any
of terminals RH, RM, RL and STR
and turn on the AU signal.
Control input
signals
(No voltage
input allowed)
STF
STR
RM
Forward rotation start
Reverse rotation start
Middle speed
High speed RH
*3
FM
SD
(+)
Calibration
resistor
(-)
Earth (Ground)
RBrake resister
Earth
(Ground)
External transistor common
24VDC power supply
Contact input common (source)
SD
PC
Contact input common
Indicator
1mA full-scale
Analog meter
(Digital indicator)
*6
*4
*6
*6
*6
*7
*7
*7
*7
*1
*2
*5
PR
R/L1
S/L2
T/L3
P/+
N/-

3
Standard connection diagram and terminal specifications
1
WIRING
zSingle-phase 200V power input
zSingle-phase 100V power input
1.1.2 Explanation of main circuit terminals
(1) Main circuit
CAUTION
To prevent a malfunction due to noise, keep the signal cables more than 10cm away
from the power cables.
REMARKS
•To ensure safety, connect the power input to the inverter via a magnetic contactor and earth leakage
circuit breaker or moulded case circuit breaker, and use the magnetic contactor to switch power on-off.
•The output is three-phase 200V.
Terminal
Symbol Terminal Name Description
R/L1, S/L2,
T/L3 (*1) AC power input Connect to the commercial power supply.
U, V, W Inverter output Connect a three-phase squirrel-cage motor.
P/+, PR (*2) Brake resistor
connection
Connect the optional brake resistor (MRS/MYS type, FR-
ABR) (The brake resistor can be connected to the FR-
S520E-0.4K to 3.7K only.)
P/+, N/−Brake unit
connection
Connect the brake unit (BU), power regeneration
common converter (FR-CV) or high power factor
converter (FR-HC). (The N/- terminal is not provided for
the FR-S520E-0.1K to 0.75K.)
P/+, P1 DC reactor
connection
Remove the jumper across terminals P - P1 and connect
the optional DC reactor (FR-HEL(-H)/FR-BEL(-H)).
(The single-phase 100V power input model cannot be
connected.)
Earth (ground) For earthing (grounding) the inverter chassis. Must be
earthed (grounded).
*1. When using single-phase power input, terminals are R/L1 and S/L2.
*2. The PR terminal is provided for the FR-S520E-0.4K to 3.7K.
MCCB
IM
U
V
W
MC
Power
supply
Motor
Earth (Ground)
S/L2
R/L1

4
Standard connection diagram and terminal specifications
(2) Control circuit
Symbol Terminal Name Definition
Input signals
Contact input
STF Forward rotation
start
Turn on the STF signal to start
forward rotation and turn it off
to stop.
When the STF and STR
signals are turned on
simultaneously, the stop
command is given.
STR Reverse rotation
start
Turn on the STR signal to start
reverse rotation and turn it off
to stop. The terminal
functions change
with input terminal
function selection
(Pr. 60 to Pr. 63).
(*3)
RH
RM
RL
Multi-speed
selection
Turn on the RH, RM and RL signals in
appropriate combinations to select
multiple speeds.
The priorities of the speed commands
are in order of jog, multi-speed setting
(RH, RM, RL, REX) and AU.
SD
(*1, 6)
Contact input
common (sink)
(initial setting)
Common terminal for contact input terminal (sink logic) and
terminal FM.
External
transistor
common (source)
When connecting the transistor output (open collector
output), such as a programmable controller (PLC), when
source logic is selected, connect the external power supply
common for transistor output to this terminal to prevent a
malfunction caused by undesirable currents.
24VDC power
supply common
Common output terminal for 24VDC 0.1A power supply (PC
terminal)
Isolated from terminals 5 and SE.
PC
(*1)
External
transistor
common (sink)
(initial setting)
When connecting the transistor output (open collector
output), such as a programmable controller (PLC), when sink
logic is selected, connect the external power supply common
for transistor output to this terminal to prevent a malfunction
caused by undesirable currents.
Contact input
common (source) Common terminal for contact input terminal (source logic)
24VDC power
supply Can be used as 24VDC 0.1A power supply.
10 Frequency setting
power supply 5VDC, Permissible load current 10mA.

5
Standard connection diagram and terminal specifications
1
WIRING
*1. Do not connect terminals SD and PC each other or to the earth (ground).
For sink logic (factory setting), terminal SD acts as the common terminal of contact input. For
source logic, terminal PC acts as the common terminal of contact input. (Refer to page 27 for
switching method.)
*2. Low indicates that the open collector output transistor is on (conducts). High indicates that the
transistor is off (does not conduct).
*3. RL, RM, RH, RT, AU, STOP, MRS, OH, REX, JOG, RES, X14, X16, (STR) signal selection
(Refer to page 108.)
*4. RUN, SU, OL, FU, RY, Y12, Y13, FDN, FUP, RL, Y93, Y95, LF, ABC signal selection (Refer to
page 110.)
*5. To be compliant with the European Directive (Low Voltage Directive), the operating capacity of
relay outputs (A, B, C) should be 30VDC 0.3A.
*6. Terminals SD, SE and 5 are isolated from each other. Do not earth (ground).
Input signals
Frequency setting
2Frequency setting
(voltage signal)
Inputting 0 to 5VDC (or 0 to 10V) provides the maximum output
frequency at 5V (10V) and makes input and output proportional.
Switch between 5V and 10V using Pr. 73 "0-5V, 0-10V selection".
Input resistance 10kΩ. Maximum permissible input voltage 20V
4Frequency setting
(current signal)
Input 4 to 20mADC. It is factory set at 0Hz for 4mA and at
60Hz for 20mA.
Maximum permissible input current 30mA. Input resistance
approximately 250Ω.
Turn ON signal AU for current input.
Turning the AU signal on makes voltage input invalid. Use
any of Pr. 60 to Pr. 63 (input terminal function selection) to set
the AU signal.
5Frequency setting
input common
Frequency setting signal (terminal 2, 4) common terminal.
(*6)
Output signals
A
B
C
Alarm output
1 changeover contact output indicates
that the inverter protective function has
activated and the output stopped.
230VAC 0.3A, 30VDC 0.3A. Alarm:
discontinuity across B-C (continuity
across A-C), Normal: continuity across B-
C (discontinuity across A-C).(*5)
The function of the
terminals changes
according to the
output terminal
function selection
(Pr. 64, Pr. 65).
(*4)
Open collector
RUN Inverter
running
Switched low when the inverter output
frequency is equal to or higher than the
starting frequency (factory set to 0.5Hz
variable). Switched high during stop or DC
injection brake operation. (*2) Permissible
load 24VDC 0.1A (a voltage drop is 3.4V
maximum when the signal is on)
SE Open collector
common Common terminal for inverter running terminal RUN.
(*6)
Indicator
FM For meter
The output signal across terminals FM-SD is factory set to
about 1mA at 60Hz and is proportional to the corresponding
output frequency. Since output voltage is pulse waveform, a
digital meter can be connected.
Frequency permissible load current 1mA
Pulse specification 1440 pulses/s at 60Hz
Communication
—— RS-485
connector
Using the parameter unit connection cable (FR-CB201 to
205), the parameter unit (FR-PU04) can be connected.
Communication operation can be performed using RS-485.
For details of RS-485 communication, refer to page 48.
Symbol Terminal Name Definition

6
Main circuit terminals
1.2 Main circuit terminals
1.2.1 Terminal block layout
1) Three-phase 200V power input
•FR-S520E-0.1K, 0.2K (-C) •FR-S520E-1.5K, 2.2K, 3.7K (-C)
•FR-S520E-0.4K, 0.75K (-C)
2) Three-phase 400V power input
•FR-S540E-0.4K, 0.75K, 1.5K, 2.2K, 3.7K (-C)
P/+
P1
U V W
IM
R/L1 S/L2 T/L3
Jumpe
r
Power supply Motor
P1
Jumper
Power supply Motor
U V W
IM
N/- P/+
R/L1 S/L2 T/L3
PR
P1
Motor
Jumpe
r
U V W
IM
Power supply
R/L1 S/L2
P/+
PR
T/L3
P1
Jumper
Power supply Motor
U V W
IM
P/+
R/L1 S/L2 T/L3
N/-

7
Main circuit terminals
1
WIRING
3) Single-phase 200V power input
•FR-S520SE-0.1K, 0.2K, 0.4K, 0.75K •FR-S520SE-1.5K
4) Single-phase 100V power input
•FR-S510WE-0.1K, 0.2K, 0.4K •FR-S510WE-0.75K
CAUTION
•Make sure the power cables are connected to the R/L1, S/L2, T/L3 of the inverter.
Never connect the power cable to the U, V, W of the inverter. Doing so will damage
the inverter. (Phase need not be matched)
•Connect the motor to U, V, W. At this time, turning on the forward rotation switch
(signal) rotates the motor in the counterclockwise direction when viewed from the
motor shaft.
P1
Motor
Jumpe
r
U V W
IM
Power supply
R/L1 S/L2
P/+
N/-
P1
Jumper
Motor
U V W
IM
Power supply
P/+
N/-
R/L1 S/L2
Motor
U V W
IM
Power supply
R/L1 S/L2
P/+N/-
Motor
U V W
IM
Power supply
P/+
N/-
R/L1 S/L2

8
Main circuit terminals
1.2.2 Cables, wiring length, and crimping terminals
The following table indicates a selection example for the wiring length of 20m.
1) Three-phase 200V power input
2) Three-phase 400V power input
3) Single-phase 200V power input
4) Single-phase 100V power input
zWiring length
100m maximum. (50m maximum for the FR-S540E-0.4K.)
Applied Inverter
Ter-
minal
Screw
size
Tight-
ening
Torque
N
⋅ m
Crimping
Terminal
Cable Size
HIV cable
(mm2)AWG PVC cable
(mm2)
R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W
FR-S520E-0.1K
to 0.75K (-C) M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
FR-S520E-
1.5K, 2.2K (-C) M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
FR-S520E-3.7K
(-C) M4 1.5 5.5-4 5.5-4 3.5 3.5 12 12 4 2.5
Applied Inverter
Ter-
minal
Screw
size
Tight-
ening
Torque
N
⋅ m
Crimping
Terminal
Cable Size
HIV cable
(mm2)AWG PVC cable
(mm2)
R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W
FR-S540E-0.4K
to 3.7K M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
Applied Inverter
Termi-
nal
Screw
size
Tight-
ening
Torque
N
⋅ m
Crimping
Terminal
Cable
HIV cable
(mm2)AWG PVC Cable
(mm2)
R, S U, V, W R, S U, V, W R, S U, V, W R, S U, V, W
FR-S520SE-0.1K
to 0.75K M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
FR-S520SE- 1.5K
M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
Applied Inverter
Termi-
nal
Screw
size
Tight-
ening
Torque
N
⋅ m
Crimping
Terminal
Cable Size
HIV cable
(mm2)AWG PVC cable
(mm2)
R, S U, V, W R, S U, V, W R, S U, V, W R, S U, V, W
FR-S510WE- 0.1K
to 0.4K
M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
FR-S510WE-0.75K
M4 1.5 5.5-4 2-4 3.5 2 12 14 4 2.5
CAUTION
•When the wiring length of the 0.1K and 0.2K of the three-phase 200V, single-
phase 200V, and single-phase 100V class and the 0.4K and 0.75K of the three-
phase 400V class is 30m or more, set the carrier frequency to 1kHz.
•When automatic torque boost is selected in Pr. 98 "automatic torque boost
selection (motor capacity)", the wiring length should be 30m maximum. (Refer
to page 132.)

9
Main circuit terminals
1
WIRING
1.2.3 Wiring instructions
1) Use crimping terminals with insulation sleeve to wire the power supply and motor.
2) Application of power to the output terminals (U, V, W) of the inverter will damage the
inverter. Never perform such wiring.
3) After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter
clean.
When drilling mounting holes in an enclosure etc., take care not to allow chips and
other foreign matter to enter the inverter.
4) Use cables of the recommended size to make a voltage drop 2% maximum.
If the wiring distance is long between the inverter and motor, a main circuit cable
voltage drop will cause the motor torque to decrease especially at the output of a
low frequency.
5) For long distance wiring, the fast-response current limit function may be reduced or
the devices connected to the secondary side may malfunction or become faulty
under the influence of a charging current due to the stray capacity of wiring.
Therefore, note the maximum overall wiring length.
6) Electromagnetic wave interference
The input/output (main circuit) of the inverter includes high frequency components,
which may interfere with the communication devices (such as AM radios) used near
the inverter. In this case, install a FR-BIF(-H) optional capacitor type filter (for use
on the input side only) or FR-BSF01 or FR-BLF common mode filter to minimize
interference.
7) Do not install a power capacitor, surge suppressor or capacitor type filter (FR-BIF(-
H) option) on the output side of the inverter.
This will cause the inverter to trip or the capacitor and surge suppressor to be
damaged. If any of the above devices are connected, remove them. (When using
the FR-BIF(-H) capacitor type filter with a single-phase power supply, connect it to
the input side of the inverter after isolating the T phase securely.)
8) Before starting wiring or other work after the inverter is operated, 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.

10
Main circuit terminals
1.2.4 Selection of peripheral devices
Check the inverter type of the inverter you purchased. Appropriate peripheral devices
must be selected according to the capacity.
Refer to the following list and prepare appropriate peripheral devices:
1) Three-phase 200V power input
2) Three-phase 400V power input
Motor
Output
(kW)
Applied Inverter
Type
Moulded Case
Circuit Breaker
(MCCB *1, 4) or
Earth Leakage
Circuit Breaker
(ELB) (Refer to
page 12) (*2, 4)
Magnetic
Contactor
(MC)
(Refer to
page 16)
AC Reactor
FR-HAL-K
FR-BAL-K
(Refer to page
17)
DC Reactor
FR-HEL-K
FR-BEL-K
(Refer to page
17)
0.1 FR-S520E-0.1K(-C) 30AF/5A S-N10 0.4 (*3) 0.4 (*3)
0.2 FR-S520E-0.2K(-C) 30AF/5A S-N10 0.4 (*3) 0.4 (*3)
0.4 FR-S520E-0.4K(-C) 30AF/5A S-N10 0.4 0.4
0.75 FR-S520E-0.75K(-C) 30AF/10A S-N10 0.75 0.75
1.5 FR-S520E-1.5K(-C) 30AF/15A S-N10 1.5 1.5
2.2 FR-S520E-2.2K(-C) 30AF/20A S-N10 2.2 2.2
3.7 FR-S520E-3.7K(-C) 30AF/30A S-N20,
S-N21 3.7 3.7
Motor
Output
(kW)
Applied Inverter
Type
Moulded Case
Circuit Breaker
(MCCB *1, 4) or
Earth Leakage
Circuit Breaker
(ELB) (Refer to
page 12) (*2, 4)
Magnetic
Contactor
(MC)
(Refer to
page 16)
AC Reactor
FR-HAL-K
FR-BAL-K
(Refer to page
17)
DC Reactor
FR-HEL-K
FR-BEL-K
(Refer to page
17)
0.4
FR-S540E-0.4K
30AF/5A S-N10 H0.4 H0.4
0.75 FR-S540E-0.75K
30AF/5A S-N10 H0.75 H0.75
1.5 FR-S540E-1.5K
30AF/10A S-N10 H1.5 H1.5
2.2 FR-S540E-2.2K
30AF/15A S-N10 H2.2 H2.2
3.7 FR-S540E-3.7K 30AF/20A S-N20,
S-N21 H3.7 H3.7