Melco FR-S520E User Manual

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Page 1

TRANSISTORIZED INVERTER

FR-S500

INSTRUCTION MANUAL (Detailed)

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

WIRING

FUNCTIONS

PROTECTIVE

FUNCTIONS

SPECIFICA TIONS

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Page 2

Thank you for choosing this Mitsubishi Transistorized inverter.

WARNING

CAUTION

This instruction manual (detailed) provides instructions for advanced use of the FRS500 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 bo th levels because they are

important to personnel safety.

1. Electric Shock Prevention

WARNING

 While power is on or when the inverter is running, do not open the front cover. You

may get an electric shock.

 Do 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.

 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 3-digit LED inverter

monitor is off, wait for at least 10 minutes after the pow er s upply ha s b een switched off, and check to make sure that there are no residual voltage using a tester or the like.

 This inverter must be earthed (grounded). Earthing (grounding) must conform to

the requirements of national and local s afety regulations and el ectrical codes. (JIS, NEC section 250, IEC 536 class 1 and other applicable standards)

 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.

 Do not subject the cables to scratches, excessive stress, heavy loads or pinching.

Otherwise, you may get an electric shock.

 Do not change the cooling fan while power is on. It is dangerous to change the

cooling fan while power is on.

 When you have removed the front cover, do not touch the connector above the 3-

digit monitor LED display. Otherwise, you get an electrick shock.

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2. Fire Prevention

*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/s

or less

(conforming to JIS C 60068-2-6)

CAUTION

 Mount the inverter and bra ke res is to r on an i ncom bus t ibl e surf ac e. In st a lli ng th e i nve rter

and brake resistor directly on or near a combusti ble surface could lead to a fire.

 If the inverter has become faulty, switch off the inverter power . A contin uous 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.

3. Injury Prevention

CAUTION

 Apply only the voltage specified in the instruction manual to each terminal to

prevent damage, etc.

 Always connect to the correct terminal to prevent damage, etc.  Always make sure that polarity is correct to prevent damage, etc.  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.

4. Additional Instructions

Also note the following points to prevent an accidental failure, injury, electric shock, etc.

(1) Transportation and installation

CAUTION

 When carrying products, use correct lifting gear to prevent injury.  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 if the inverter is damaged or has parts missing.  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 inverter.  Check the inverter mounting orientation is correct.  Prevent other conductive bodies as screws and metal fragments or other

flammable substance as oil from entering the inverter.

 As the inverter is a precision ins trument, do not d rop or subject it to impact .  Use the inverter under the following environmental conditions: This could cause

the inverter damage.

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(2) Wiring

CAUTION

 Do not fit capacitive equipment such as power factor correction capacitor, radio

noise filter (option FR-BIF(-H)) or surge suppressor to the output of the inverter.

 The connection orientation of the output cables U, V, W to the motor will affect the

direction of rotation of the motor.

(3) Trial run

CAUTION

 Check all parameters, and ensure that the machine will not be damaged by a

sudden start-up.

 When the load GD

output current may v ary whe n the outp ut fre quency is i n the 20H z to 30 Hz ra nge. 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.)

(4) Operation

is small (at the motor GD or smaller) for 400V from 1.5K to 3.7K, the

WARNING

 When you have chosen the retry function, stay away from the equipment as it will

restart suddenly after an alarm stop.

 The [STOP] key is valid only when the appropriate function setting has been made.

Prepare an emergency stop switch separately.

 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.

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CAUTION

 The electronic thermal relay function does not guarantee protection of the motor

from overheating.

 Do not use a magnetic contactor on the inverter input for frequent starting/stopping

of the inverter.

 Use a noise filter to reduce the effect of electromagnetic interference. Otherwise

nearby electronic equipment may be affected.

 Take measures to suppress harmonics. Otherwise power supply harmonics from

the inverter may heat/damage the power capacitor and generator.

 When a 400V class motor is inverter-driven, please use an insulation-enhanced

motor or measures taken to suppre ss s urge vo ltages. Surge voltages at tributable to the wiring constants may occur at the motor terminals, deteriorating the insulation of the motor.

 When parameter clear or all clear is performed, reset the required parameters

before starting operations. Each parameter returns to the factory setting.

 The inverter can be easily set for high-speed operation. Before changing its

setting, fully examine the performances of the motor and machine.

 In addition to the inverter's holding function, install a holding device to ensure safety.  Before running an inverter which had been stored for a long period, always

perform inspection and test operation.

(5) Emergency stop

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 any protective function is activated, take the appropriate corrective action,

then reset the inverter, and resume operation.

(6) Maintenance, inspection and parts replacement

CAUTION

 Do not carry out a megger (insulation resistance) test on the control circuit of the

inverter.

(7) Disposing of the inverter

CAUTION

 Treat as industrial waste.

(8) General instructions

Many of the diagrams an d dra wi ng s in th i s inst ruc ti o n ma nua l (detailed) show the inverter without a cover, or p artiall y open. N ever ope rate the inverter in this m anner. Always replace the cover and fo llow t his ins tructi on man ual (detailed) when operating the inv erter.

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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 termina ls ............ ................ ............... ....................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 power factor improving 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................................................................24

1.3 How to use the control circuit terminals...............................25

1.3.1 Terminal block layout ..................................................................................25

1.3.2 Wiring instructions.......................................................................................25

1.3.3 Changing the control logic............................... ...... ...... ..... ...........................26

CONTENTS

1.4 Input terminals.........................................................................28

1.4.1 Run (start) and stop (STF, STR, STOP) .....................................................28

1.4.2 Connection of frequency setting potentiometer and

output frequency meter (10, 2, 5, 4, AU).....................................................31

1.4.3 External frequency selection (REX, RH, RM, RL).......................................32

1.4.4 Indicator connection and adjustment (FM)..................................................34

1.4.5 Control circuit common terminals (SD, 5, SE).............................................36

1.4.6 Signal inputs by contactless switches.........................................................36

1.5 How to use the input signals

(assigned terminals RL, RM, RH, STR)..................................37

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"...................................................................37

1.5.2 Second function selection (RT signal): Pr. 60 to Pr. 63 setting "3".............37

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1.5.3 Current input selection "AU signal": Pr. 60 to Pr. 63 setting "4".................. 37

1.5.4 Start self-holding selection (STOP signal): Pr. 60 to Pr. 63 setting "5"....... 38

1.5.5 Output shut-off (MRS signal): Pr. 60 to Pr. 63 setting "6"........................... 38

1.5.6 External thermal relay input: Pr. 60 to Pr. 63 setting "7".............................39

1.5.7 Jog operation (JOG signal): Pr. 60 to Pr. 63 setting "9"..............................39

1.5.8 Reset signal: Pr. 60 to Pr. 63 setting "10"................................................... 40

1.5.9 PID control valid terminal: Pr. 60 to Pr. 63 setting "14"...............................41

1.5.10 PU operation/external operation switchover: Pr. 60 to Pr. 63 setting "16".. 41

1.6 Connection to the Stand-Alone Option.................................42

1.6.1 Connection of the dedicated external brake resistor (option) (FR-S520E-0.4K

to 3.7K only)................................................................................................ 42

1.6.2 Connection of the brake unit (BU type)....................................................... 43

1.6.3 Connection of the high power factor converter (FR-HC)............................. 44

1.6.4 Connection of the power regeneration common converter (FR-CV)........... 45

1.7 Handling of the RS-485 connector ................................ ........46

1.7.1 Connection of the parameter unit (FR-PU04).............................................46

1.7.2 Wiring of RS-485 communication ............................................................... 47

1.8 Design information .................................................................50

2. FUNCTIONS 51

2.1 Function (Parameter) list................. .......................................52

2.2 List of parameters classified by purpose of use..................65

2.3 Expl a n a ti on o f fu n c ti o n s (p a ra m e t e rs ) .. ............................. ..67

2.3.1 Torque boost (Pr. 0 , Pr. 46 )...................................................................... 67

2.3.2 Maximum and minimum frequency (Pr. 1 , Pr. 2 )...................................... 68

2.3.3 Base frequency, base frequency voltage (Pr.3 , Pr.19 , Pr.47 )..................69

2.3.4 Multi-speed operation (Pr. 4, Pr. 5, Pr. 6, Pr. 24 to Pr. 27, Pr. 80 to Pr. 87)70

2.3.5 Acceleration/deceleration time (Pr. 7 , Pr. 8 , Pr. 20 , Pr. 44 , Pr. 45 ) ....... 71

2.3.6 Selection and protection of a motor (Pr. 9 , Pr. 71 , H7 )............................ 73

2.3.7 DC injection brake (Pr. 10 , Pr. 11 , Pr. 12 )............................................... 75

2.3.8 Starting frequency (Pr. 13 )......................................................................... 76

2.3.9 Load pattern selection (Pr. 14 )...................................................................77

2.3.10 Jog operation (Pr.15 , Pr.16 )......................................................................78

2.3.11 RUN key rotation direction selection (Pr.17 )..............................................78

2.3.12 Stall prevention function and current limit function (Pr. 21 ) .......................79

2.3.13 Stall prevention (Pr. 22 , Pr. 23 , Pr. 28 ).................................................... 81

2.3.14 Acceleration/deceleration pattern (Pr. 29 ).................................................83

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2.3.15 Extended function display selec tio n (Pr. 30 )..............................................84

2.3.16 Frequency jump (Pr. 31 to Pr. 36 ).............................................................84

2.3.17 Speed display (Pr. 37 )................................................................................85

2.3.18 Biases and gains of the frequency setting voltage (current)

(Pr. 38 , Pr. 39 , C2 to C7 ).........................................................................86

2.3.19 Start-time earth (ground) fault detection selection (Pr. 40 ) ........................90

2.4 Output terminal function parameters....................................90

2.4.1 Up-to-frequency (Pr. 41 ).............................................................................90

2.4.2 Output frequency detection (Pr. 42 , Pr. 43 )...............................................91

2.5 Curren t d et e c ti o n fun c t io n p ar a me t e rs........... .. ............... .....92

2.5.1 Output current detection functions (Pr. 48 , Pr. 49 )....................................92

2.5.2 Zero current detection (Pr. 50 , Pr. 51 ).......................................................93

2.6 Display fu n c ti o n pa r a me te r s ................. ............... ............... ...94

2.6.1 Monitor display (Pr. 52 , Pr. 54 )..................................................................94

2.6.2 Setting dial function selection (Pr. 53 )........................................................95

2.6.3 Monitoring reference (Pr. 55 , Pr. 56 ).........................................................96

2.7 Restart operation parameters ................................................96

2.7.1 Restart setting (Pr. 57 , Pr. 58 , H6 )...........................................................96

2.8 Additio n a l fu n c tion parameters ... ............... ................ .. .........9 9

2.8.1 Remote setting function selection (Pr. 59 ).................................................99

2.9 Termin a l fu n c ti o n se le c t io n pa r a me ters .............................102

2.9.1 Input terminal function selection (Pr. 60 , Pr. 61 , Pr. 62 , Pr. 63 )............102

2.9.2 Output terminal function selection (Pr. 64 , Pr. 65 ) ..................................104

2.10 Operation selection function parameters ...........................105

2.10.1 Retry function (Pr. 66 , Pr. 67 , Pr. 68 , Pr. 69 )........................................105

2.10.2 PWM carrier frequency and long wiring mode (Pr. 70 , Pr. 72 )................107

2.10.3 Voltage input selection (Pr. 73 )................................................................108

2.10.4 Input filter time constant (Pr. 74 )..............................................................109

2.10.5 Reset selection/PU stop selection (Pr. 75 )...............................................109

2.10.6 Cooling fan operation selection (Pr. 76 )...................................................111

2.10.7 Parameter write disable selection (Pr. 77 )...............................................112

2.10.8 Reverse rotation prevention selection (Pr. 78 ).........................................113

2.10.9 Operation mode selection (Pr. 79 ) ...........................................................113

2.10.10PID control (Pr. 88 to Pr. 94 )...................................................................117

CONTENTS

2.11 Auxiliary pa ra meters.................. ................ ........................... 1 2 4

2.11.1 Slip compensation (Pr. 95 , Pr. 96 , Pr. 97 )..............................................124

2.11.2 Automatic torque boost selection (Pr. 98 )................................................125

III

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2.11.3 Motor primary resistance (Pr. 99 ) ............................................................ 126

2.12 Maintenance parameters......................................................126

2.12.1 Maintenance output function (H1, H2 )..................................................... 126

2.12.2 Current average value monitor signal (H3, H4, H5)..................................127

2.13 Brake parameters (FR-S520E-0.4K to 3.7K only)...............130

2.13.1 Regenerative braking operation (b1 , b2 )................................................130

2.14 Calibration parameters.........................................................131

2.14.1 Meter (frequency meter) calibration (C1 )................................................. 131

2.15 Clear param e te r s... .. ................ ............... ................ ...............134

2.15.1 Parameter clear (CLr )..............................................................................134

2.15.2 Alarm history clear (ECL )......................................................................... 134

2.16 Communicatio n p a ra me t e rs ... ............... .. ................ .............135

2.16.1 Communication settings (n1 to n7 , n11 )................................................137

2.16.2 Operation and speed command source (n8 , n9 ) ....................................152

2.16.3 Link startup mode selection (n10 )............................................................ 153

2.16.4 E2PROM write selection (n12 )................................................................. 155

2.17 Parameter un it (FR-PU04) sett in g.................. ............... ... ....156

2.17.1 PU display language selection (n13 ) .......................................................156

2.17.2 PU buzzer control (n14 )........................................................................... 156

2.17.3 PU contrast adjustment (n15 ).................................................................. 157

2.17.4 PU main display screen data selection (n16 )...........................................157

2.17.5 Disconnected PU detection /PU setti ng lock sel ec tio n (n17 )....................158

3. PROTECTIVE FUNCTIONS 159

3.1 Errors (A l a rms).. ............... ............... ................ ............... .......160

3.1.1 Error (alarm) definitions............................................................................ 161

3.1.2 To know the operating status at the occurrence of alarm

(only when FR-PU04 is used)................................................................... 169

3.1.3 Correspondence between digital and actual characters........................... 169

3.1.4 Resetting the inverter................................................................................ 169

3.2 Troubleshooting....................................................................170

3.2.1 Motor remains stopped............................................................................. 170

3.2.2 Motor rotates in opposite direction............................................................ 171

3.2.3 Speed greatly differs from the setting.......................................................171

3.2.4 Acceleration/deceleration is not smooth................................................... 171

3.2.5 Motor current is large................................................................................171

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3.2.6 Speed does not increase...........................................................................171

3.2.7 Speed varies during operation ..................................................................171

3.2.8 Operation mode is not changed properly..................................................172

3.2.9 Operation panel display is not operating...................................................172

3.2.10 Parameter write cannot be performed.......................................................172

3.2.11 Motor produces annoying sound...............................................................172

4. SPECIFICATIONS 173

4.1 Specifi c a tion list. .. ................ ............... ................ ............... ...174

4.1.1 Ratings......................................................................................................174

4.1.2 Common specifications.............................................................................178

4.2 Outline drawings ...................................................................180

APPENDIX 183

APPENDIX 1 Parameter Instruction Code List .............................184

CONTENTS

Page 11

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 .....................................................

1.2 Main c ir c u it te r m i n a ls .......... ............... ............... 6

1.3 How to use the control circuit terminals.......... 25

1.4 Input terminals.................................................... 28

1.5 How to use the input signals (assigned

terminals RL, RM, RH, STR) ..............................

1.6 Connection to the Stand-Alone Option............ 42

1.7 Handling of the RS-485 connector...................... 46

1.8 Design information............................................. 50

•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

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Page 12

Standard connection diagram and terminal specifications

Inverter

Motor

U V

RUN

Running

Alarm output

Operation status output

Open collector

Open collector outputs

Frequency setting potentiometer

1/2W1kΩ

Frequency setting signals (Analog)

4 to 20mADC(+)

0 to 5VDC 0 to 10VDC

Current input(-)

(+5V)

(Common)

(4 to 20mADC)

Selected

output common

Low speed

NFB MC

Power factor improving DC reactor (FR-BEL: Option)

Jumper:

Remove this jumper when FR-BEL is connected.

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

Forward rotation start Reverse rotation start

Middle speed

High speed

(+)

Calibration resistor

(-)

Earth (Ground)

Brake resister

Earth (Ground)

External transistor common 24VDC power supply Contact input common (source)

Contact input common

Indicator 1mA full-scale Analog meter (Digital indicator)

*6 *6 *6

R/L1

S/L2 T/L3

P/+

N/-

1.1 Standard connection diagram and terminal specifications

1.1.1 Standard connection diagram

 Three-phase 200V power input  Three-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 so urce logic. Refer to page 26. *5. When the setting potentiometer is used frequently, use a 2W1kΩ potentiometer. *6. The terminal functions change with input terminal function selection (Pr . 60 to Pr . 63). (Refe r to page 102.)

(RES, RL, RM, R H, R T, AU, STOP, MRS, OH, REX, JO G, X14, X16, (STR) si gna l s elec tion ) *7. The terminal function changes according to the setting of output terminal function selection (Pr. 64, Pr. 65).

(Refer to page 104.) (RUN, SU, OL, FU, R Y, Y12, Y13, FDN, FUP, RL, Y93, Y95, LF, ABC signal selectio n)

Page 13

Standard connection diagram and terminal specifications

WIRING

CAUTION

To prevent a mal function d ue to nois e, keep the signa l cable s mor e than 10 cm away from the power cables.

 Single-phase 200V power input  Single-phase 100V power input

Power supply

R/L1 S/L

Motor

Earth (Ground)

NFB

REMARKS

•To ensure safety, connect the power input to the inverter via a magnetic contactor and earth leakage

circuit breaker or no-fuse breaker, and use the magnetic contactor to switch power on-off.

•The output is three-phase 200V.

1.1.2 Explanation of main circuit terminals

(1) Main circu it

Terminal

Symbol

R/L1, S/L2,

T/L3 (*1)

U, V, W Inverter output

P/+, PR (*2)

P/+, N/−

P/+, P1

*1. When using single-phase power in put , te rm inals are R/L1 and S/L2. *2. The PR terminal is provided for the FR-S520E-0.4K to 3.7K.

Terminal Name Description

AC power input

Brake resistor

connection

Brake unit

connection

Power factor

improving DC

reactor

connection

Earth (ground)

Connect to the com m erc i al pow er supply. Connect a three-ph ase squirrel-cage motor.

Connect the optional brake resistor (MRS/MYS typ e, FR ABR) (The brake resi st or can be connected to the FRS520E-0.4K to 3.7K only.)

Connect the brake un it (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 0.75 K. )

Remove the jumper across terminals P - P1 and connect the option al power factor i m proving DC reac t or (FRBEL(-H)). (The single-phase 10 0V power input model cannot be connected.)

For earthing (groun di ng) th e i nve rt er chassis. Must be earthed (grounded).

Page 14

Standard connection diagram and terminal specifications

(2) Control circuit

Symbol Terminal Name Definition

Turn on the STF signal to start forward rota t i on and turn it off to stop.

Turn on the STR signal to start rev erse rotat i on and turn it off to stop. Turn on the RH, RM and RL signals in appropriate combinations to select multiple speeds. The priorities of the spee d com m ands are in order of jog, multi-speed setting (RH, RM, RL, REX) and AU. Common to the contact input terminals (STF, STR, RH, RM, RL) and terminal FM. (*6) When connecting the transistor output (open collector output), such as a programmable controller (PLC), connect the positive external power supply for transistor output to this terminal to prevent a malfunction caused by undesirable currents. This terminal can be used as a 24VDC, 0.1A power output across terminals PC-SD. When source logic has been selected, this terminal serves as a contact input common.

5VDC, Permissible l oa d current 10mA. Inputting 0 to 5VDC (or 0 to 10V) provides the maximum output

frequency at 5 V (10 V) and makes input and ou tput p ropor tion al. Switch between 5V and 10V using Pr. 73 "0-5V , 0-10V selection". Input resistance 10kΩ. Maximum permissible input voltage 20V Input 4 to 20mADC. It is factory set at 0Hz for 4mA and at 60Hz for 20mA. Maximum permiss ib le in put current 30mA. Input resistanc e approximately 250Ω. Turn ON signal AU for current inpu t . 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. Frequency setting signal (terminal 2, 4) common terminal. (*6)

Input signals

STF

STR

Contact input

(*1)

Frequency setting

Forward rotation start

Reverse rotation start

Multi-speed selection

Contact input common (sink)

External transistor common, 24VDC power supply, contact input common (source)

Frequency setting power supply

Frequency setting

(voltage signal)

Frequency setting

(current signal)

Frequency setting input common

When the STF and STR signals are turned on simultaneously, the stop command is given.

The terminal functions change with input terminal function selection (Pr. 64, Pr.65). (*3)

Page 15

Standard connection diagram and terminal specifications

WIRING

Symbol Terminal Name Definition

Changeover contact output indicates

A BCAlarm output

Inverter

RUN

running

Open collector

Open collect or

Output signals

common

FM For meter

Indicator

that the inverter protective function has activate d 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 ac ro ss A- C ) .(*5) Switched low when the inverter output frequency is equal to or higher than the starting frequency (f actory set to 0.5Hz variable). Switched high during stop or DC injection brake ope ra tion. (*2) Permissible load 24VDC 0. 1A (a voltage drop is 3.4V maximum when the signal is on)

Common terminal fo r inv er te r r unn in g t er m in al RU N . 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 shape, a digital meter can be connected. Frequency permissi ble load current 1mA Pulse specification 1440 pulses/s at 60Hz

The function of the terminals changes according to the output terminal function selection (Pr. 64, Pr.65). (*4)

(*6)

Using the parameter unit connection cable (FR-CB201 to

205), the parameter unit (F R-PU04) can be connected. Communication op er at io n can be performed using RS- 485. For details of RS-485 comm unication, refer to page 47.

——

RS-485 connector

Communication

*1. Do not co nnect terminals SD and PC eac h ot her or to the earth (ground).

For sink logic (factory setting), terminal SD acts as the com m on terminal of contact in pu t. For source log ic, terminal PC acts as the commo n terminal of contact input. (Re fer to page 26 for switching meth od.)

*2. Low ind icates that the open collector outpu t transistor is on (conducts). High in dicates

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 10 2. )

*4. RUN, SU, OL, FU, RY, Y12, Y 13, FDN, FUP, RL , Y93, Y95, LF, ABC signal selec tion

(Refer to page 104.)

*5. To be compliant with the European Directive (Low Voltage Directive), the operating

capacity of relay outputs (A, B, C) s hould be 30VDC 0.3A.

*6. Terminals SD, SE and 5 are isolated from each other. Do not earth (gro und) .

Page 16

Main circuit terminals

Motor

Jumper

U V W

Power supply

R/L1 S/L2

P/+

T/L3

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)

Jumpe

P/+

R/L1 S/L2 T/L3

Power supply

U V W

Motor

• 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)

N/-

P/+

Jumper

R/L1 S/L2 T/L3

Power supply

U V W

Motor

N/-

Jumper

P/+

R/L1 S/L2 T/L3

Power supply

U V W

Motor

Page 17

WIRING

3)Single-phase 200V power input

• FR-S520SE-0.1K, 0.2K, 0.4K, 0.75K • FR-S520SE-1.5K

N/-

P/+

N/-

Jumpe

Jumper

P/+

Main circuit terminals

R/L1 S/L2

Power supply

U V W

Motor

R/L1 S/L2

Power supply

U V W

Motor

4)Single-phase 100V power input

• FR-S510WE-0.1K, 0.2K, 0.4K • FR-S510WE-0.75K

R/L1 S/L2

Power supply

P/+N/-

U V W

Motor

N/-

P/+

R/L1 S/L2

Power supply

U V W

Motor

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. (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.

Page 18

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

U, V, W

PVC Insulation

Cable

R, S, T

U, V, W

PVC Insulation

Cable

PVC Insulation

Cable

PVC Insulation

Cable

Ter-

Applied Inverter

FR-S520E-0.1K to 0.75K (-C)

FR-S520E-

1.5K, 2.2K (-C) FR-S520E-3.7K

(-C)

Tight-

minal

ening

Screw

Torque

size

M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5

M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5

M4 1.5 5.5-4 5.5-4 3.5 3.5 12 12 4 2.5

⋅

R, S, T U, V, W

Crimping

Terminal

R, S, T

Cable

U, V, W

AWG

R, S, T

2) Three-phase 400V power input

Ter-

Applied Inverter

FR-S540E-0.4K

to 3.7K

Tight-

minal

ening

Screw

Torque

size

M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5

Crimping

Terminal

⋅

R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W

Cable

AWG

3) Single-phase 200V power input

Applied Inverter

FR-S520SE-0.1K

to 0.75K

FR-S520SE-

1.5K

Termi-

Screw

Tight-

nal

ening

Torque

size

M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5

M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5

⋅

Crimping

Terminal

U, V, W U, V, W U, V, W U, V, W

Cable

AWG

4) Single-phase 100V power input

Applied Inverter

FR-S510WE-

0.1K to 0.4K FR-S510WE-0.75K

Termi-

Screw

Tight-

nal

ening

Torque

size

M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5

M4 1.5 5.5-4 2-4 3.5 2 12 14 4 2.5

Crimping

Terminal

⋅

R, S U, V, W R, S U, V, W R, S U, V, W R, S U, V, W

Cable

AWG

 Wiring length

100m maximum. (50m maximum for the FR-S540E-0.4K.)

CAUTION

•When the wiring length of the 0.1K and 0.2K of the three-phase 200V, singlephase 200V, and single-phase 100V class and 0.4K and 0.75K of the threephase 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 125.)

Page 19

Main circuit terminals

WIRING

1.2.3 Wiri ng instructions

1) Use insulation-sleeved crimping terminals for the power supply and motor cables.

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 a control box etc., take care not to let wire offcuts 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 high 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 radio noise filter (for use on the input side only) or FR-BSF01 or FR-BLF line noise filter to minimize interference.

7) Do not install a power capacitor, surge suppressor or radio noise 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) radio noise 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.

Page 20

Main circuit terminals

1.2.4 Selection of peripheral devices

Check the capacity of the motor applicable to 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

No-fuse Breaker

Motor

Output

(kW)

Applied Inverter

Type

(NFB *1, 4) or

Earth Leakage

Circuit Breaker

(ELB) (Refer to page 12) (*2, 4)

0.1 FR-S520E-0.1K(-C) 30AF/5A S-N10

0.2 FR-S520E-0.2K(-C)

0.4 FR-S520E-0.4K(-C)

0.75 FR-S520E-0.75K(-C)

30AF/5A S-N10 30AF/5A S-N10 FR-BAL-0.4K FR-BEL-0.4K

30AF/10A S-N10 FR-BAL-0.75K FR-BEL-0.75K

1.5 FR-S520E-1.5K(-C) 30AF/15A S-N10 FR- BAL- 1.5K FR-BEL-1.5K

2.2 FR-S520E-2.2K(-C)

3.7 FR-S520E-3.7K(-C)

30AF/20A S-N10 FR- BAL- 2.2K FR-BEL-2.2K 30AF/30A

2) Three-phase 400V power input

No-fuse Breaker

Motor

Output

(kW)

Applied Inverter

Type

(NFB *1, 4) or

Earth Leakage

Circuit Breaker

(ELB) (Refer to page 12) (*2, 4)

0.4

0.75

1.5

2.2

3.7

FR-S540E-0.4K

FR-S540E-0.75K

FR-S540E-1.5K

FR-S540E-2.2K

FR-S540E-3.7K

30AF/5A S-N10

30AF/10A S-N10

30AF/15A S-N10

30AF/20A

Magnetic

Contactor

(MC)

(Refer to

page 16 )

S-N20,

S-N21

Magnetic

Contactor

(MC) (Refer to page 16)

S-N20,

S-N21

Power Factor

Improving AC

Reactor

(Refer to page

17)

FR-BAL-0.4K

(*3)

FR-BAL-0.4K

(*3)

FR-BAL-3.7K FR-BEL-3.7K

Power Factor

Improving AC

Reactor

(Refer to page

17)

FR-BAL-

H0.4K

FR-BAL-

H0.75K

FR-BAL-

H1.5K

FR-BAL-

H2.2K

FR-BAL-

H3.7K

Power Factor

Improving DC

Reactor

(Refer to page

17)

FR-BEL-0.4K

(*3)

FR-BEL-0.4K

(*3)

Power Factor

Improving DC

Reactor

(Refer to page

17)

FR-BEL-

H0.4K

FR-BEL-

H0.75K

FR-BEL-

H1.5K

FR-BEL-

H2.2K

FR-BEL-

H3.7K

Page 21

WIRING

3) Single-phase 200V power input

No-fuse Breaker

Motor

Output

(kW ))

Applied Inverter

Type

(NFB *1, 4) or

Earth Leakage Circuit Breaker (ELB) (Refer to page 12) (*2, 4)

0.1

FR-S520SE-0.1K 30AF/5A S-N10 FR-BAL-0.4K FR-BEL-0.4K

0.2

FR-S520SE-0.2K

0.4

FR-S520SE-0.4K

0.75

FR-S520SE-0.75K

1.5

FR-S520SE-1.5K

30AF/10A S-N10 FR- BAL- 0.4 K FR-BEL-0.4K 30AF/10A

30AF/15A

30AF/20A

4) Single-phase 100V power input

No-fuse Breaker

Motor

Output

(kW )

Applied Inverter

Type

(NFB *1, 4) or

Earth Leakage Circuit Breaker (ELB) (Refer to page 12) (*2, 4)

0.1

FR-S510WE -0.1K

0.2

FR-S510WE -0.2K

0.4

FR-S510WE -0.4K

0.75

FR-S510WE-0.75K

30AF/10A S-N10 FR-BAL-0.75K  30AF/15A S-N10 FR-BAL-1.5K 

30AF/20A

30AF/30A

Magnetic

Contactor

(MC) (Refer to page 16)

S-N20,

S-N21

S-N20,

S-N21

S-N20,

S-N21

Magnetic

Contactor

(MC) (Refer to page 16)

S-N20,

S-N21

S-N20,

S-N21

Main circuit terminals

Power Factor

Improving AC

Reactor

(Refer to page

17) (*3)

FR-BAL-0.75K FR-BEL-0.75K

FR-BAL-1.5K FR-BEL-1.5K

FR-BAL-2.2K FR-BEL-2.2K

Power Factor

Improving AC

Reactor

(Refer to page

17) (*3)

FR-BAL-2.2K 

FR-BAL-3.7K 

Power Factor

Improving DC

Reactor

(Refer to page

17) (*3)

Power Factor Improving DC

Reactor

(Refer to page

17) (*5)

*1. •Select the NFB according to the inverter power

supply capacity.

•Install one NFB per inverter.

NFB NFB INV

INV

IM IM

*2. For installations in the United States or Canada, the circuit breaker must be inverse

time or instantaneous trip type. *3. The power factor may be slightly lower. *4. 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. *5. The sing le-pha se 100V po wer in put model do es not al low the power fact or improv ing

DC reactor to be fitted.

Page 22

Main circuit terminals

1.2.5 Leakage current and installation of earth (ground) leakage circuit breaker

Due to static capacitances existing in the inverter I/O wiring and motor, leakage currents flow through them. Since their values depend on the static capacitances, carrier frequency, etc., take the following countermeasures.

(1) To-earth (ground) leakage currents

Leakage currents may flow not only into the inverter's own line but also into the other line through the earth (ground) cable, etc. These leakage currents may operate earth (ground) leakage circuit breakers and

earth (ground) leakage relays unnecessarily.

Countermeasures

• If the carrier frequency setting is high, decrease the carrier frequency (Pr. 72) of the

inverter. Note that motor noise increases. Selection of Soft-PWM control (Pr. 70) will make it unoffending. (Factory setting)

• By using earth leakage circuit breakers designed for harmonic and surge

suppression in the inverter's own line and other line, operation can be performed with the carrier frequency kept high (with low noise).

Page 23

Main circuit terminals

WIRING

(2) Line-to-line leakage currents

Harmonics of leakage currents flowing in static capacities between

Power supply

the inverter output cables may operate the external thermal relay unnecessarily.

Countermeasures

• Use the electronic thermal relay function of the inverter.

• Decrease the carrier frequency. Note that motor noise increases. Selection of

Soft-PWM (Pr. 70) makes it unoffending. To ensure that the motor is protected against line-to-line leakage currents, it is

recommended to use a temperature sensor to directly detect motor temperature. Installation and selection of no-fuse breaker Install a no-fuse breaker (NFB) on the power receiving side to protect the wiring of

the inverter primary side. Select the NFB according to the power supply side power factor (which depends on the power supply voltage, output frequency and load). Especially for a completely electromagnetic NFB, one of a slightly large capacity must be selected since its operation characteristic varies with harmonic currents. (Check it in the data of the corresponding breaker.) As an earth (ground) leakage breaker, use the Mitsubishi earth (ground) leakage breaker designed for harmonics and surge suppression. (Refer to page 8 for the recommended models.)

NFB

Inverter

Line-to-Line Leakage Current Path

Thermal relay

Line static capacitances

Motor

CAUTION

•Select the NFB according to the inverter power supply capacity.

•Install one NFB per inverter.

Page 24

Main circuit terminals

Motor capacity (kW)

Example of leakage current per 1km in cable path during commercial power supply operation when the CV cable is routed in metal conduit

Leakage current (mA)

Cable size (mm)

Leakage current example of three-phase induction motor during commercial power supply operation

(200V 60Hz)

100

120

2 3.5 8 142238 80

5.5 3060100

150

1.5 3 .7

2.2

7.5 15 2 21137

5.5 18.5

2.0

1.0

0.7

0.5

0.3

0.2

0.1

Ig1 Ign Ig2 Igm

2mm ×5m

2mm ×70m

3 200V

1.5kW

Inverter

Noise

filter

(3) Selecting the rated sensiti vity current f or the earth leakage ci rcuit

breaker

When using the earth leakage circuit breaker with the inverter circuit, select its rated sensitivity current as follows, independently of the PWM carrier frequency:

• Breaker for harmonic and surge

Rated sensitivity current: I

∆n ≥ 10 × (lg1+Ign+lg2+lgm)

• Standard breaker

Rated sensitivity current: I

∆n ≥ 10 × {lg1+lgn+3 × (lg2+lgm)}

lg1, lg2 : Leakage currents of cable

path dur ing commercial lgn* : Leakage current of noise lgm : Leakage current of motor

* Note the l eakage current value of the

power supply operation

filter on inverter input side

during commercial power

supply operation

noise filter installed on the inverter input side.

Breaker for harmonic and

surge

Leakage current (Ig1) (mA)

20 ×

1000m

Leakage current (Ign) (mA) 0 (without noise filter) Leakage current (Ig2) (mA) Motor leakage

current ( Igm) (mA) Total leakage current (mA ) 1.66 4.78 Rated sensitivity cu rr ent

(mA) (≥ Ig

× 10)

20 ×

30 100

70m

1000m

0.16

Standard breaker

= 0.10

= 1.40

Page 25

Main circuit terminals

WIRING

CAUTION

•The earth (ground) leakage circuit breaker should be installed to the primary (power supply) side of the inverter.

•In the connection neutral point earthed (grounded) system, th e sensitivity current becomes worse for earth (ground) faults on the inverter secondary side. Earthing (grounding) must confor m to the requirements of national and local safety regulations and electrical codes. (JIS, NEC section 250, IEC 536 class 1 and other applicable standards)

•When the breaker is installed on the secondary side of the inverter, it may be unnecessarily operated by harmonics if the effective value is less than the rating. In this case, do not install the breaker since the eddy current and hysteresis loss increase and the temperature rises.

•General products indicate the following models: BV-C1, BC-V, NVB, NV-L, NVG2N, NV-G3NA, NV-2F, earth (ground) leakage relay (except NV-ZHA), NV with AA neutral wire open-phase protection The other models are designed for h armonic and surge suppression: NV-C/ NV-S/MN series, NV30-FA, NV50-FA, BV-C2, earth (ground) leakage alarm breaker (NF-Z), NV-ZHA, NV-H

Page 26

Main circuit terminals

1.2.6 Power-off and magnetic contactor (MC)

(1) Inverter input side magnetic contactor (MC)

On the inverter's input side, it is recommended to provide an MC for the following purposes. (Refer to page 10 for selection)

1)To release the inverter from the power supply when the inverter protective function is activated or the drive becomes faulty (e.g. emergency stop operation) When cycle operation or heavy-duty operation is performed with an optional brake resistor connected, overheat and burnout of the electrical-discharge resistor can be prevented if a regenerative brake transistor is damaged due to insufficient heat capacity of the electrical-discharge resistor and excess regenerative brake duty.

2)To prevent any accident due to an automatic restart at restoration of power after an inverter stop made by a power failure

3)To rest the inverter for an extended period of time The control power supply for inverter is always running and consumes a little power. When stopping the inverter for an extended period of time, powering off the inverter will save power slightly.

4) To separate the inverter from the power supply to ensure safe maintenance and inspection work The inverter's input side MC is used for the above purpose, select class JEM1038AC3 for the inverter input side current when making an emergency stop during normal operation.

REMARKS

The MC may be switched on/off to start/stop th e inverter. However, since repeated inrush currents at power on will shorten the life of the converter circuit (switching life is about 100,000 times), freque nt starts and stops must be avoi ded. Turn on/off the inverter start controlling terminals (STF, STR) to run/stop the inverter.

As shown on the right, always use the start signal (ON or OFF across terminals STF or STR-SD)

Power supply

to make a start or stop. (Refer to page 28)

*1. When the power supply

is 400V class, install a step-down transformer.

(2) Handling of output side magnetic contactor

In principle, do not provide a magnetic contactor between the inverter and motor and switch it from off to on during operation. If it is switched on during inverter operation, a large inrush current may flow, stopping the inverter due to overcurrent shut-off. When an MC is provided for switching to the commercial power supply, for example, switch it on/off after the inverter and motor have stopped.

NFB

Operation ready

OFF

Start/Stop

Operation

OFF

T (*1)

Inverter Start/Stop Circuit Example

R/L1 S/L2 T/L3

Inverter

STF(STR) SD

moto

A B

Page 27

Main circuit terminals

WIRING

1.2.7 Regarding the installation of the power factor improving reactor

When the inverter is installed near a large-capacity power transformer (500kVA or more with the wiring length of 10m or less) or the power capacitor is to be switched, an excessive peak current will flow in the power supply input circuit, damaging the converter circuit. In such a case, always install the power factor improving reactor (FRBEL(-H) or FR-BAL(-H)).

Power supply

FR-BAL(-H)

NFB

R S TZ

Inverter

FR-BEL(-H)(*)

U V

1500 1000

500

Power supply equipment

capacity (kVA)

Power factor improving reactor installation range

010

Wiring length (m)

REMARKS

*When connecting the FR-BEL(-H), remove the jumper ac ross terminals P- P1.

The wiring lengt h between t he FR-BEL(- H) and the i nverter should be 5m maxim um and as short as possible. Use the cables which are equal in size to those of the main circuit. (Refer to page 8)

Page 28

Main circuit terminals

1.2.8 Regarding noise and the installation of a noise filter

Some noise enters the inverter causing it to malfunction and others are generated by the inverter causing the malfunction of peripheral devices. Though the inverter is designed to be insusceptible to noise, it handles low-level signals, so it requires the following general countermeasures to be taken.

(1) General countermeasures

• Do not run the power cables (I/O cables) and signal cables of the inverter in parallel with each other and do not bundle them.

• Use twisted shield cables for the detector connecting and control signal cables and connect the sheathes of the shield cables to terminal SD.

• Earth (Ground) the inverter, motor, etc. at one point.

• Capacitances exist between the inverter's I/O wiring, other cables, earth (ground)

and motor, through which leakage currents flow to cause the earth leakage circuit breaker, earth (ground) leakage relay and external thermal relay to operate unnecessarily. To prevent this, take appropriate measures, e.g. set the carrier frequency in Pr. 72 to a low value, use an earth (ground) leakage circuit breaker designed for suppression of harmonics and surges, and use the electronic thermal relay function built in the inverter.

• The input and output of the inverter main circuit include high-degree harmonics, which may disturb communication devices (AM radios) and sensors used near the inverter. In this case, install a FR-BIF(-H) optional radio noise filter (for use on the input side only) or FR-BSF01 line noise filter to minimize interference.

Install filter

on inverter's input side.

Inverter power supply

Separate inverter and power line by more than 30cm and at least 10cm from sensor circuit.

Control power supply

FR-BSF01

Install filter FR-BIF on inverter's input side.

Do not earth (ground) control box directly.

Do not earth (ground) control cable.

Control

box

FRBSF01

FR-BIF

Reduce carrier frequency.

Inverter

Power supply for sensor

Install filter

on inverter's output side.

FRBSF01

Use 4-core cable for motor power cable and use one cable as earth (ground) cable.

Use twisted pair shielded cable.

Do not earth (ground) shield but connect it to signal common cable.

Sensor

FR-BSF01

Motor

Page 29

Main circuit terminals

WIRING

1.2.9 Earthing (Grounding) precautions

 Leakage currents flow in the inverter. To prevent an electric shock, the inverter and

motor must be earthed (grounded). Earthing (grounding) 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 the dedicated earth (ground) terminal to earth (ground) the inverter. (Do not use

the screw in the casing, chassis, etc.) Use a tinned* crimping terminal to connect the earth (ground) cable. When tightening the screw, be careful not to damage the threads.

*Plating should not include zinc.

 Use the thickest possible earth (ground) cable. Use the cable whose size is equal to

or greater than that indicated in the following table, and minimize the cable length.

The earthing (grounding) point should be as near as possible to the inverter.

Motor Capacity

2.2kW or less 2 (2.5) 2 (2.5)

3.7kW 3.5 (4) 2 (4)

Earth (Ground) Cable Size (Unit: mm

200V class, 100V class 400V class

)

For use as a product compliant with the Low Voltage Directive, use PVC cable whose size is indicated within parentheses.

 Earth (Ground) the motor on the inverter side using one wire of the 4-core cable.

Page 30

Main circuit terminals

Inverter

NFB

Do not provide power factor improving capacit or.

Motor

FR-BEL(-H)

FR-BAL(-H)

FR-BAL

FR-BEL

1.2.10 Power supply harmonics

The inverter may generate power supply harmonics from its converter circuit to affect the power generator, power capacitor etc. Power supply harmonics are different from noise and leakage currents in source, frequency band and transmission path. T ake the following countermeasure suppression techniques.

The following table indicates differences between harmonics and noise:

Item Harmonics Noise

Frequency Environment To-electric channel, power impedance To-space, distance, wiring path

Quantitative understanding

Generated amount Nea rly proportional t o load capacity Affected equipment

immunity Suppression example Provide reactor. Increase distance.

Suppression technique

Harmonic currents produced on the power supply side by the inverter change with such conditions as whether there are wiring impedances and a power factor improving reactor (FR-BEL(-H) or FR-BAL(-H)) and the magnitudes of output frequency and output current on the load side.

For the output frequency and output current, we understand that they should be calculated in the conditions under the rated load at the maximum operating frequency.

CAUTION The power factor improving capacitor and surge suppressor on the inverter output side may be overheated or dama ged by the har moni c co mponents of the inverter output. Also, since a n exces sive c urr ent flows in the inverter to activa te overcurrent protection, do not provide a capacitor and surge suppressor on the inverter output side when the motor is driven by the inverter. To improve the power factor, insert a power factor improving reactor on the inverter's primary side or DC circuit. For full information, refer to page 17.

Normally 40th to 50th degrees or less (up to 3kHz or less)

Theoretical calculation possible

Specified in standard per equipment

High frequency (several 10kHz to 1GHz order)

Random occurrence, quantitative grasping difficult Change with current variation ratio (larger as switching speed increases) Different depending on maker's equipment specifications

Page 31

Main circuit terminals

WIRING

Not more than reference capacity

New installation/addition/ renewal of equipment

Calculation of equivalent capacity sum

Sum of equivalent capacities

Over reference capacity

Calculat io n of outgoing harmonic current

Is outgoing harmonic current equal to or lower than maximum valu e?

Not more than maximum value

Harmonic suppression technique is not required.

Over maximum value

Harmonic suppression technique is required.

1.2.11 Harmonic suppression guideline

Harmonic currents flow from the inverter to a power receiving point via a power transformer. The harmonic suppression guideline was established to protect other consumers from these outgoing harmonics. The transistorized inverter has been excluded from the target products covered by "harmonic suppression guideline for household appliances and general-purpose products" in January 2004. In addition, all models of transistorized inverter used by specific consumers are covered by "harmonic suppression guideline for consumers who receive high voltage or special high voltage" (hereinafter referred to as "guideline for specific consumers").

"Guideline f or spec ific c ons umers" This guideline sets forth the maximum values of harmonic currents outgoing from a high-voltage or spec i all y high-v ol ta ge con sume r who wi ll ins t all , add or rene w harm onic

generating equipment. If any of the maximum values is exceeded, this guideline requires that c onsume r to t ak e cert ai n supp ressi on me asures .

T able 1 Maximum Values of Outgoing H armonic Curr ent s per 1 kW Contract Power

Received Power Voltage 5th 7th 11th 13th 17th 19th 23rd

6.6 kV 3.5 2.5 1.6 1.3 1.0 0.9 0.76 0.70 22 kV 1.8 1.3 0.82 0.69 0.53 0. 47 0.39 0.36 33 kV 1.2 0.86 0.55 0.46 0.35 0.32 0.26 0.24

(1) Application of the guideline for specific consumers

Over

23rd

Page 32

Main circuit terminals

Table 2 Conversion Factors for FR-S500 Series

Circuit Type Conversion Factor (Ki)

Without reactor K31 = 3.4

Three-phase bridge (Capacitor-smoothed)

Single-phase bridge (capacitor smoothed)

* K42=0.35 is a value when the reactor value is 20%. Since a 20% reactor is large and

considered to b e not prac tical , K42=1. 67 is wr itte n as c onversi on fa ctor f or a 5% react or in the technica l data JEM-TR2 01 of the Japan Electric Machin e Industry Associati on and th is value is recommended for calculation for the actual practice.

With reactor (AC side) K32 = 1.8 With reactor (DC side) K33 = 1.8 With reactors (AC, DC sides) K34 = 1.4 Without reactor K41 = 2.3 With reactor (AC side) K42 = 0.35 *

Table 3 Equivalent Capacity Limits

Received Power Voltage Reference Capacity

6.6kV 50 kVA 22/33 kV 300 kVA 66kV or more 2000 kVA

Table 4 Harmonic Contents (Values of the fundamental current is 100%)

Reactor 5th 7th 11th 13th 17th 19th 23rd 25th

Not used 65 41 8.5 7.7 4.3 3.1 2.6 1.8

Three-phase bridge (capacitor smoothed)

Single-phase bridge (capacitor smoothed)

* The harm onic contents for "single-phase bridge/with reactor" in the table 4 are values when

the reactor val ue is 20%. Since a 20% reactor is lar ge and cons idered to be not pract ical, harmonic con tents when a 5% reactor is used is writte n in the technical data JEM-TR201 of the Japan Electric Machine Industry Association and this value is recommended for calculation for the actual practice.

Used (AC side) 38 14.5 7.4 3.4 3.2 1.9 1.7 1.3 Used (DC side ) or with filter pack Used (AC, DC sides) Without reactor 50 24 5.1 4.0 1.5 1.4

With reactor (AC side) *

30 13 8.4 5.0 4.7 3.2 3.0 2.2 28 9.1 7.2 4.1 3.2 2.4 1.6 1.4



6.0 3.9 1.6 1.2 0.6 0.1



1) Calculation of equivalent capacity (P0) of harmonic generating equipment The "equivalent capacity" is the capacity of a 6-pulse converter converted from the capacity of consumer's harmonic generating equipment and is calculated with the following equation. If the sum of equivalent capacities is higher than the limit in Table 3, harmonics must be calculated with the following procedure:

P0=Σ (Ki × Pi) [kVA]

Ki: Conversion factor (refer to Table 2) Pi: Input rated capacity of harmonic

generating equipment* [kVA]

i: Number indicating the conversion

circuit type

*Input rated capacity: Determined by

the capacity of the applied motor and found in Table 5. It should be noted that the rated capacity used here is used to calculate a generated harmonic amount and is different from the power supply capacity required for actual inverter drive.

Page 33

Main circuit terminals

WIRING

2) Calculation of outgoing harmonic current Outgoing harmonic current = fundamental wave current (value converterd from

received power voltage) × operation ratio × harmonic content

• Operation ratio: Operation ratio = actual load factor × operation time ratio during

30 minutes

• Harmonic content: Found in Table 4.

Table 5 Rated Capacities and Outgoing Harmonic Currents for Inverter Drive

Applied

Motor

(kW)

0.4 1.61 0.81 49 0.57 14.7 6.37 4.12 2.45 2.30 1.57 1.47 1.08

0.75 2.74 1.37 83 0.97 24.9 10.76 6.97 4.15 3.90 2.66 2.49 1.83

1.5 5.50 2.75 167 1.95 50.10 21.71 14.03 8.35 7.85 5.34 5.01 3.67

2.2 7.93 3.96 240 2.81 72.00 31.20 20.16 12.00 11.28 7.68 7.20 5.28

3.7 13.0 6.50 394 4.61 118.2 51.2 33.10 19.70 18.52 12.61 1 1.82 8.67

Rated

Current [A]

200V 400V 5th 7th 11th 13th 17th 19th 23rd 25th

6.6kV

Equivalent of

fundamental

wave input

current (mA)

Input rated

capacity

(kVA)

Outgoing Harmonic Current Converted from

6.6kV (mA)

(without reactor, 100% operation ratio)

3) Harmonic suppression technique requirement If the outgoing harmonic current is higher than; maximum value per 1kW (contract power) × contract power, a harmonic suppression technique is required.

4) Harmonic suppression techniques

No. Item Description

Reactor inst a llation

(ACL, DCL)

Installation of power

factor improving capacitor Transformer multiphase operation

Passive

(AC filter)

Active filter This filter detects the current of a circui t generating a harm o nic

Install a reactor (ACL) in the AC side of the inverter or a reactor (DCL) in its DC side or bo th to suppress outgoing harmonic currents.

When used with a series reactor, the power factor i m proving capacitor has an effect of absorbing harmonic currents.

Use two transformers with a phase angle difference of 30

∆, ∆-∆ combination to provide an effect corresponding to 12 pulses,

reducing low-degree harmonic currents. A capacitor and a reactor are used together to reduce impedances

at specific freq u en cies, producing a great effect of abs o rb i n g harmonic currents.

current and gen erates a ha rmonic cu rrent equ ivalent to a diff erence between that current and a fundamental wave current to suppress a harmonic current at a detection poi n t, providing a great effect of absorbing harmonic currents.

° as in -

Page 34

Main circuit terminals

1.2.12 Inverter-driven 400V class motor

In the PWM type inverter, a surge voltage attributable to wiring constants is generated at the motor terminals. Especially for a 400V class motor, the surge voltage may deteriorate the insulation. When the 400V class motor is driven by the inverter, consider the following measures:

•Measures It is recommended to take either of the following measures:

(1) Rectifying the motor insulation

For the 400V class motor, use an insulation-enhanced motor. Specifically

1) Specify the "400V class inverter-driven, insulation-enhanced motor".

2) For the dedicated motor such as the constant-torque motor and low-vibration motor, use the "inverter-driven, dedicated motor".

CAUTION When the wiring length between the motor and inverter is 40m or more, take the above countermeasure and also set the long wiring mode in Pr. 70 "SoftPWM setting". (Refer to page 107 for Pr. 70.)

(2) Suppressing the surge voltage on the inverter side

On the secondary side of the inverter, connect the optional surge voltage suppression filter (FR-ASF-H).

Page 35

How to use the control circuit terminals

WIRING

1.3 How to use the control circuit terminals

1.3.1 Terminal block layout

In the control circuit of the inverter, the terminals are arranged as shown below:

Terminal arrangement

of control circuit

10 2 5 4

RUN

PC SE

A BC

Terminal screw size: M3

Tightening torque: 0.5N m to 0.6N m

SD SD STF

Wire size: 0.3mm

STR

Terminal screw size: M2

Tightening torque: 0.22N m to 0.25N m

RM RH

RL FM

to 0.75mm

1.3.2 Wiri ng instructions

1) Terminals SD, SE and 5 are common to the I/O signals isolated from each other. Do not earth them. Avoid connecting the terminal SD and 5 and the terminal SE and 5.

2) Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and power circuits (including the 200V relay sequence circuit).

3) The input signals to the control circuit are micro currents. When contacts are required, use two or more parallel micro signal contacts or a twin contact to prevent a contact fault.

*Information on bar terminals Introduced products (as of Oct., 2003): Phoenix Contact Co.,Ltd.

Bar Terminal Model

T erminal Screw Size

(With Insulation

Sleeve)

M3 (A, B, C terminals)

(Other than the above)

Al 0.5-6WH A 0.5-6 0.3 to 0.5

Al 0.75-6GY A 0.75-6 0.5 to 0.75

Al 0.5-6WH A 0.5-6 0.3 to 0.5

Bar terminal crimping terminal: CRIMPFOX ZA3 (Phoenix Contact Co., Ltd.)

Bar Terminal Model

(Without Insulation

Sleeve)

Wire Size (mm

)

CAUTION

When using the bar terminal (without insulation sleeve), use care so that the twisted wires do not come out.

Page 36

How to use the control circuit terminals

1.3.3 Changing the control logic

The input signals are set to sink logic. To change the control logic, the jumper connector under the setting dial must be moved to the other position.

Change the jumper connector position using tweez ers , a p air of long-nose pliers etc. Change the jumper connector position before switch ing power on.

CAUTION

•Make sure that the front cover is installed securely.

•The front cover is fitted with the capacity plate and the inverter unit with the

rating plate. Since these plates have the same serial numbers, always replace the removed cover onto the original inverter.

•The sink-source logic change-over jumper connector must be fitted in only one of those positions. If it is fitted in both positions at the same time, th e inverter may be damaged.

1) Sink logic type

• In this logic, a signal switches on when a current flows from the corresponding signal input terminal. Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals.

Power supply

• Connecting a positive terminal of the

STF

STR

external power supply for transistor output to terminal PC prevents a malfunction caused by an undesirable current. (Do not connect terminal SD of the inverter with terminal 0V of the external power supply. When using terminals PC-SD as a 24VDC power supply, do not install an external power supply in parallel with the inverter. Doing so may cause a malfunction in the inverter due to an undesirable current.)

AY40 transistor output module

RUN

24VDC SD

24VDC

STF

STR

Current flow

AX40Inverter

Inverter

24VDC (SD)

Page 37

How to use the control circuit terminals

WIRING

AY80 transistor output module

STF

STR

Inverter

24VDC (SD)

24VDC

Current flow

2) Source logic type

• In this logic, a signal switches on when a current flows into the corresponding signal input terminal. Terminal PC is common to the contact input signals. For the open collector output signals, terminal SE is a positive external power supply terminal.

AX80

Power supply

STF

Inverter

RUN

STR

24VDC

• Connecting the 0V terminal of the external power supply for transistor output to terminal SD prevents a malfunction caused by an undesirable current.

Page 38

Input terminals

NFB

Power supply

Forward

rotation start

Reverse

rotation start

STF STR (Pr.63= "- - -" )

Inverter

Output frequency

Time

2-wire type connection example

R, S, T

Across STF-SD (STR)

1.4 Input terminals

1.4.1 Run (start) and stop (STF, STR, STOP)

To start and stop the motor, first switch on the input power supply of the inverter (switch on the magnetic contactor, if any, in the input circuit during preparation for operation), then start the motor with the forward or reverse rotation start signal.

(1) Two-wire type connection (STF, STR)

A two-wire type connection is shown on the right.

1) The forward/reverse rotation signal is used as both the start and stop signals. Switch on either of the forward and reverse rotation signals to start the motor in the corresponding direction. Switch on both or switch off the start signal during operation to decelerate the inverter to a stop.

2) The frequency setting signal may either be given by entering 0 to 5VDC (or 0 to 10VDC) across frequency setting input terminals 2-5 or by setting the required values in Pr. 4 to Pr. 6 "multispeed setting" (high, middle, low speeds). (For multi-speed operation, refer to page 32.)

3) After the start signal has been input, the inverter starts operating when the frequency setting signal reaches or exceeds the "starting frequency" set in Pr. 13 (factory-set to 0.5Hz). If the motor load torque is large or the "torque boost" set in Pr . 0 is small , operation may not be started due to insufficient torque until the inverter output frequency reaches about 3 to 6Hz. If the "minimum frequency" set in Pr. 2 (factory setting = 0Hz) is 6Hz, for example, merely entering the start signal causes the running frequency to reach the minimum frequency of 6Hz according to the "acceleration time" set in Pr. 7.

4) To stop the motor, operate the DC injection brake for the period of "DC injection brake operation time" set in Pr. 11 (factory setting = 0.5s) at not more than the DC injection brake operation frequency or at not more than 0.5Hz. To disable the DC injection brake function, set 0 in either of Pr. 11 "DC injection brake operation time" or Pr. 12 "DC injection brake voltage". In this case, the motor is coasted to a stop at not more than the frequency set in Pr. 10 "DC injection brake operation frequency" (0 to 120Hz variable) or at not more than 0.5Hz (when the DC injection brake is not operated).

5) If the reverse rotation signal is input during forward rotation or the forward rotation signal is input during reverse rotation, the inverter is decelerated and then switched to the opposite output without going through the stop mode.

Page 39

WIRING

Input terminals

(2) Three-wire type connection (STF, STR, STOP)

A three-wire type connection is shown on the right. Assign the start self-holding signal (STOP) to any of the i nput terminals. To make a reverse rotation start, set Pr. 63

Power supply

to "- - -" (factory setting).

1) Short the signals STOP-SD to enable

the start self-holding function. In this case, the forward/reverse rotation signal functions only as a start signal. (Note) Assign the stop signal to any of

Pr. 60 to Pr. 62 (input terminal function selection).

2) If the start signal terminals STF (STR)-

SD are shorted once, then opened, the start signal is kept on and starts the inverter. To change the rotation direction, short the start signals STR (STF)-SD once, then open it.

3) The inverter is decelerated to a stop by

opening the signals STOP-SD once. For the frequency setting signal and the operation of DC injection brake at a stop time, refer to paragraphs 2) to 4) in (1) Two-wire type connection. The right diagram shows 3-wire type connection.

4) When the signals JOG-SD are shorted, the STOP signal is invalid and the JOG

signal has precedence.

5) If the output stop signals MRS-SD are shorted, the self-holding function is not

deactivated.

DC Injection Brake and Coasting to Stop Functionality

Operation

Mode

DC Injection Brake

DC injection brake enabled

DC injection brake disabled

External Operation or Combined

Terminals STF

(STR)-SD

disconnected

DC injection br ak e operated at not more than "DC injection brak e operation frequency" set in Pr. 10 Coasted to a stop at not more than "DC injection brake operation frequency" set in Pr. 10

*1: Also stopped by the . Refer to page 109.

Operation

Pr. 79 = "0", "2", "3"

Set frequency

(*1)

changed to 0Hz

DC injection brake operated at 0.5Hz or less.

Coasted to a stop at 0.5Hz or less.

STOP

RESET

NFB

Forward rotation start

Stop

Reverse rotation start

Output frequency

Start

Stop

3-wire type connectio n example

DC injection brake operated at not more than "DC injection brak e operation frequency" set in Pr. 10 Coasted to a stop at not more than "DC injection brake operatio n frequency" set in Pr. 10

PU Operation or Comb in ed

Pr. 79 = "0 ", "1 ", "4"

Stop key

R, S, T

Inverter STF STR (Pr.63= "- - -" ) STOP

Operation

DC injection brake operated at 0.5Hz or less.

Coasted to a stop at 0.5Hz or less.

Time

Set frequency

changed to 0Hz

Page 40

Input terminals

Output frequency

Starting frequency Pr.13 (*1)

0.5Hz

Forward rotation

Forward

rotation

3Hz

Start signal switched on while DC injection brake is being operated

DC injection brake operation frequency Pr. 10

DC injection brake enabled

Time

DC injection brake operation time Pr. 11

0.5s

ON ON

Revers e

rotation

0.5Hz

Start signal terminal

(*3)

(*4)

Across STF-SD

Across STR-SD

Start signal

terminal Across STF-SD Across STR-SD

DC injection brake disabledDC injection brake enabled

Starting frequency Pr.13 (*1)

0.5Hz

Output frequency

DC injection brak e operation frequency Pr. 10

3Hz

0.5Hz

0.5s

DC injection brake operation time Pr. 11

(*3)

(*2)

DC injection brake operation time Pr. 11

0.5Hz

0.5s

(*3)

Start/Stop Timing Chart (for two-wire type)

DC injection brake not operate d

(*4)

3Hz

Coasted to

a stop

Time

Forward-Reverse Rotation Switch-Over Timing Chart

REMARKS

*1. The "starting frequency" in Pr. 13 (factory-set to 0.5Hz) m ay be set between 0 and 60Hz. *2. If the next start signal is gi ve n duri ng DC inj ect ion bra ke oper at ion, the D C inje ct ion br ake

is disabled and re start is made.

*3. The "DC injection brak e ope rat io n time " in Pr. 11 (factory-set to 0.5s) may be se t be t ween

0 and 10s.

*4. The frequency at whic h the mot or is coas ted to a st op is not more tha n the "DC injec tion

brake operation frequency" set in Pr. 10 (factory setting = 3Hz; may be set b e tween 0 and 120Hz) or not more than 0.5Hz.

*5. The "starting frequen cy" in Pr. 13, "DC injection brake operati on time" in Pr. 11 and "DC

injection brake operation frequency" in Pr. 10 are the factory-set values.

Page 41

Input terminals

WIRING

Maximum frequency

(0 to 120Hz)

Minimum frequency

(0 to 120Hz)

Starting frequency

(0 to 60Hz)

0.5 0

Output frequencies

(Hz)

Input voltage is proportional to output frequency.

Pr.38 Pr.39

Pr.1

Pr.2

Pr.13

Pr.73

(10V)

(20mA)

Frequency setting signal

Frequency setting

voltage gain frequency

Frequency setting

current gain frequency

(1 to 120Hz)

1.4.2 Connection of frequency setting potentiometer and output frequency meter (10, 2, 5, 4, AU)

The analog frequency setting input signals that may be entered are voltage and current signals. For the relationships between the frequency setting input voltages (currents) and output frequencies, refer to the following diagram. The frequency setting input signals are proportional to the output frequencies. Note that when the input signal is less than the starting frequency, the output frequency of the inverter is 0Hz. If the input signal of 5VDC (or 10V, 20mA) or higher is entered, the output frequency does not exceed the maximum output frequency.

Relationships between Frequency Setting Inputs and Output Frequencies

REMARKS

For the way to calibrate the output frequency meter, refer to page 131.

(1) Voltage input (10, 2, 5)

Enter the frequency setting input signal of 0 to 5VDC (or 0 to 10VDC) across the frequency setting input terminals 2-5. The maximum output frequency is reached when 5V (10V) is input across terminals 2-5. The power supply used may either be the inverte r's b uilt-in p ower supply or an exter nal power supply. For the built-in power supply, terminals 10-5 provide 5VDC output.

For operation at 0 to 5VDC, set "0" in Pr. 73 to the 0 to 5VDC input. Use terminal 10 for the built-in power supply.

0 to 5VDC

+5V 10

2 5

For operation at 0 to 10VDC, set "1" in Pr. 73 to the 0 to 10VDC input.

2 5

0 to 10VDC

Page 42

Input terminals

REX

Speed 1

(high speed)

Speed 5

Speed 6

Speed 7

Time

ON ON ON ON

ONONON

ON ON ON ON

Output frequency (Hz)

(low speed)

Speed 3

Speed 2

(middle speed)

Speed 4

(2) Current input (4, 5, AU)

To automatically perform operation under constant pressure or temperature control using a fan, pump etc., enter the controller output signal of 4 to 20mADC across terminals 4-5. Terminals AU-SD must be shorted to use the 4 to 20mADC signal for operation. (Assign the signal AU using any of Pr. 60 to Pr. 63.) When the multi-speed signal is input, the current input is ignored.

Automatic/manual signal switching

Manual operation

Frequency setting

potentiometer

Automatic signal

4-20mADC

AU SD 10

Inverter

5 4

Manual-Automatic Switching

Across AU-SD

Operation

Automatic

operation

4 to 20mA

OFFON

Manual

operation

0 to 5V

(0 to 10V)

1.4.3 E xternal frequency selection (REX, RH, RM, RL)

Up to 15 speeds (*) may be selected for an external command forward rotation start or up to 7 speeds for an external command reverse rotation start according to the combination of connecting the multi-speed select terminals REX, RH, RM and RL-SD, and multi-speed operation can be performed as shown below by shorting the start signal terminal STF (STR)-SD. Speeds (frequencies) may be specified as desired from the operation panel or parameter unit as listed below.

CAUTION

• * C hange the setting of Pr. 63 "STR terminal function selection" to "8", and assign and use as the 15-speed select signal (REX). Has precedence over the main speed setting signal (0 to 5V, 0 to 10V, 4 to 20mADC).

REX

Speed 10

Speed 11

Speed 9

Speed 8

Output frequency (Hz)

ON ON ON ON

ONON ON ON ON ON ON ON

Speed 12

Speed 13

Speed 14

Speed 15

Time

ON ON ON ON

Page 43

Input terminals

WIRING

ONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONON

Multi-Speed Setting

Terminal Input

REX-

Speed

Speed 1

(high

speed)

Speed 2

(middle

speed)

Speed 3

(low

speed)

Speed 4 OFF OFF Pr. 24 Speed 5 OFF OFF Pr. 25 Pr. 6 setting when Pr. 25="- - -" Speed 6 OFF OFF Pr. 26 Pr. 5 setting when Pr. 26="- - -" Speed 7 OFF Pr. 27 Pr. 6 setting when Pr. 27="- - -" Speed 8 OFF OFF OFF Pr. 80 0Hz when Pr. 80="- - -" Speed 9 OFF OFF Pr. 81 Pr. 6 setting when Pr. 81="- - -" Speed 10 OFF OFF Pr. 82 Pr. 5 setting when Pr. 82="- - -" Speed 11 OFF Pr. 83 Pr. 6 setting when Pr. 83="- - -" Speed 12 OFF OFF Pr. 84 Pr. 4 setting when Pr. 84="- - -" Speed 13 OFF Pr. 85 Pr. 6 setting when Pr. 85="- - -" Speed 14 OFF Pr. 86 Pr. 5 setting when Pr. 86="- - -" Speed 15 Pr. 87 Pr. 6 setting when Pr. 87="- - -"

External

setting

RH-SDRM-SDRL-

SD*

OFF OFF OFF Pr. 4 0 to 120Hz

OFF OFF OFF Pr. 5 0 to 120Hz

OFF OFF OFF Pr. 6 0 t o 120Hz

OFF OFF OFF OFF

Parameter

SD*

Frequency

setting

potentiometer

Set Frequency

Range

0 to 120Hz, - - -

0 to max. setting

Remarks



Pr. 6 setting when Pr. 24="- - -"



*When using the REX signal, an external command cannot be used to make a

reverse rotation start.

U V W

2 5

IM Motor

Frequency setting potentiometer

Power supply

Forward rotation

Multi-speed selection

R S

T STF

REX RH RM RL SD

Inverter

Multi-Speed Operation Connection Example

REMARKS

*1. When the freq uency s ettin g pot entio meter is co nnect ed, t he i nput s igna l of the freque ncy

setting potenti ometer is ignore d if th e multi-s peed sele ct signa l is switc hed on. (Th is als o applies to the 4 to 20m A input signal.)

*2. For a reverse rotation star t, set Pr. 63 to "- - -" (fa ctory se ttin g) to make the STR s ignal of

terminal STR valid.

Page 44

Input terminals

1.4.4 Indicator connection and adjustment (FM)

The output frequency, etc. of the inverter can be indicated by a DC ammeter of 1mA full-scale deflection and maximum 300Ω internal resistance or a commercially available digital indicator which is connected across terminals FM-SD. The indicator can be calibrated from the operation panel or parameter unit. Note that the reading varies according to the wiring distance if the indicator is placed away from the inverter. In this case, connect a calibration resistor in series with the indicator as shown below and adjust until the reading matches the operation panel or parameter unit indication (indicator monitoring mode). Install the indicator within 200m (50m for the digital indicator) of the inverter and

connect them by at least 0.3mm

Inverter

Calibration re s is t o r *

1mA

REMARKS

* Not needed when calibration is made using the calibration parameter C1 "FM terminal

calibration". T his res istor is used when calib ration mu st be ma de near th e freque ncy mete r for such a reason as a remote frequency meter. Note that the needle of the fr equency meter may not deflect to full-scale when th e c a lib ra tion resistor is c on ne c te d. In this case, us e both the resistor and calibration parameter "C1".

CAUTION

•Refer to page 131 for the procedure of indicator adjustment.

twisted or shielded cables.

Inverter

(+)

Analog indicator

(-)

(1mA full-scale)

T ypes of Indicators Connected

1440 pulses/s

Digital indicato

Page 45

Input terminals

WIRING

Output waveform of terminal FM

The output signal of terminal FM has a pulse waveform as shown in the table below and the number of its pulses is proportional to the inverter output frequency. The output voltage (average voltage) is also proportional to the output frequency.

Terminal FM Output Voltage

Specifications

Output

Calibration parameter C1 (Pr. 900)

waveform

Max. 2400 pulses/s

Number of

output pulses

(pulses/

second)

Output

voltage

*1. 0.5V or l ess when a DC ammeter of 300Ω or less intern al resistance is connected to

Set a full-scale value which achieves 1440 pulses/s. Pr. 55: frequency monitoring

reference

Pr. 56: cu rrent monitoring

reference

0 to 8VDC max. (*1) (Approx. 5V at 1440 pulses/s)

measure the ou tput voltage.

Inverter

24V

FM SD

Example of Inverter and Frequency

Meter

Adjustment

• Analog meter

To adjust the reading of an analog indicator (ammeter), turn the calibration resistor to change the current. When using the operation panel or parameter unit for adjustment, change the pulse width of the output waveform (calibration parameter "C1") (adjust the current through the adjustment of the output voltage) to adjust the reading. (For details, refer to page

131.)

REMARKS

It is not recommended to use a voltage type indicator because it is easily affected by a voltage drop, induction noise, etc. and may not provide correct reading if the wiring distance is long.

Page 46

Input terminals

• Digital indicator

Since the digital indicator counts and displays the number of pulses, adjust it from the operation panel or parameter unit. The inverter output, at which the reference pulses of 1440 pulses/s are output, can be set in Pr. 55 when frequency monitoring is used as reference, or in Pr. 56 when current monitoring is used as reference.

[Example]1. To set the output across FM-SD to 1440 pulses/s at the inverter output

frequency of 120Hz, set "120" (Hz) in Pr. 55. (Factory setting: 60Hz)

2. To set the output across FM-SD to 1440 pulses/s at the inverter output current of 15A, set "15" (A) in Pr. 56. (Factory setting: rated inverter current)

1.4.5 Cont rol circuit common terminals (SD, 5, SE)

Terminals SD, 5, and SE are all common terminals (0V) for I/O signals and are isolated from each other. Terminal SD is a common terminal for the contact input terminals (STF, STR, RH, RM, RL) and frequency output signal (FM). Terminal 5 is a common terminal for the frequency setting analog input signals. It should be protected from external noise using a shielded or twisted cable. Terminal SE is a common terminal for the open collector output terminal (RUN).

1.4.6 Signal inputs by contactless switches

If a transistor is used instead of a contacted switch as shown on the

+24V

right, the input signals of the inverter can control terminals STF, STR, RH, RM, RL.

STF, etc.

Inverter

External signal input using transistor

REMARKS

1.When us ing an extern al transis tor con nected to an ext ernal powe r suppl y, use terminal SD to prevent a malfun c t io n fro m oc cu rring due to a leakage current. (Refer to page 26.)

2.Note that an SSR (solid-state relay) has a relatively large leakage current at OFF time and it may be accidentally input to the inver ter.

Page 47

How to use the input signals (assigned terminals

WIRING

STF (STR) RT

Inverter

Start

Second acceleration

/deceleration

1.5 How to use the input signals (assigned terminals RL, RM, RH, STR)

RL, RM, RH, STR)

These terminals can be changed in function by setting Pr. 60 to Pr. 63.

Pr. 60 "RL terminal function selection" Pr. 61 "RM terminal function selection" Pr. 62 "RH terminal function selection"

Page 102

Pr. 63 "STR terminal function selection"

1.5.1 Mu lti-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"

• By entering frequency commands into the RL, RM, RH and REX signals and turning

on/off the corresponding signals, you can perform multi-speed operation (15 speeds). (For details, refer to page 32.)

• If the operation panel is away from the control box, you can perform continuous

variable-speed operation with signal contacts, without using analog signals. (For details, refer to page 99.)

1.5.2 Second function selection (RT signal): Pr . 60 to P r. 63 setting "3"

Pr. 44 "second acceleration/deceleration time" Pr. 45 "second deceleration time" Pr. 46 "second torque boost" Pr. 47 "second V/F (base frequency)" To set any of the above functions, turn on this "RT signal".

1.5.3 Current input selection "AU signal": Pr. 60 to Pr. 63 setting "4"

used to perform operation of constant- pressure/ temperature control, automatic operation can be performed by entering

When a fan, pump etc. is

the 4-20mADC output signal of a regulator into across terminals 4-5. When the 4-20mADC signal is used to perform operation, always short the AU signal.

REMARKS

The current inp ut is ignored if the multi -speed signal is input .

Frequency setting

utomatic signal

Automatic/manual signal switching

Manual operation

potentiometer 4-20mADC

AU SD

10 2 5

Operation

Inverter

Across AU-SD

Automatic

operation

4 to 20mA

OFF

Manual

operation

0 to 5V

(0 to 10V)

Page 48

How to use the input signals (assigned terminals

Output frequency

Motor coasted to stop

0.5Hz

Across STF (STR)

Pr. 13 "starting frequency"

Across MRS-

RL, RM, RH, STR)

1.5.4 Start self-holding selection (STOP signal): Pr. 60 to Pr. 63

setting

"5"

This connection example is used when you want to self-hold the start signal (forward rotation,

STOP

reverse rotation). * Connected to the STOP signal to avoid

Stop

forward or reverse rotation if forward or reverse rotation and stop are turned on simultaneously.

Forward rotation Reverse rotation

(Wiring example for sink logic)

STF

STR

1.5.5 Output shut-off (MRS signal): Pr. 60 to Pr. 63 setting "6"

Short the output stop terminal MRS-SD during inverter output to cause the inverter to immediately stop the output. Open terminals MRS-SD to resume operation in about 10ms. Terminal MRS may be used as described below:

(1) To stop the motor by

mechanical brake (e.g. electromagnetic brake)

Terminals MRS-SD must be shorted when the mechanical brake is operated and be opened before motor restart.

(2) To provide interlock to

disable operation by the inverter

After MRS-SD have been shorted, the inverter cannot be operated if the start signal is given to the inverter.

(3) To coast the motor to stop

The motor is decelerated according to the preset deceleration time and is stopped by operating the DC injection brake at 3Hz or less. By using terminal MRS, the motor is coasted to a stop.

Page 49

How to use the input signals (assigned terminals

WIRING

RL, RM, RH, STR)

1.5.6 External thermal relay input: Pr. 60 to Pr. 63 setting "7"

When the external thermal relay or thermal relay built in the motor is actuated, the inverter output is shut off and an alarm signal is given to keep the motor stopped to protect the motor from overheat. Even if the thermal relay contact resets, the motor cannot be restarted unless the reset terminals RES-SD are shorted for more

Inverter

Thermal relay

Moto

than 0.1s and then opened or a power-on reset is made. The function may therefore be used as an external emergency stop signal input.

1.5.7 J og operation (JOG signal): Pr. 60 to Pr. 63 setting "9"

(1) Jog operation using external signals

Jog operation can be started/stopped by shorting the jog mode select terminals JOGSD and shorting/opening the start signal terminals STF or STR-SD. The jog frequency and jog acceleration/deceleration time are set in Pr. 15 (factory setting 5Hz, variable between 0 and 120Hz) and Pr. 16 (factory setting 0.5s, variable between 0 and 999s), respectively, and their settings can be changed from the operation panel or parameter unit. The JOG signal has precedence over the multi-speed signal. (External)

Jog frequency Pr. 15

DC injection brake

3Hz

Reverse rotation

Time

Forward

0.5Hz

rotation

Output frequency

cross JOG -

Forward rotation

cross STF-

Reverse rotation

cross STR-

Page 50

How to use the input signals (assig ne d ter m in als

Across RES Across

STF (STR)-

Coasting

When motor is restarted during coasting, inverter activates current limit to start acceleration.

Coasting to stop (Indicates motor speed)

Coasting time

Ordinary acceleration

T: Should be longer than the time of

coasting to stop.

Output frequency

(Hz)

RL, RM, RH, STR)

1.5.8 Reset signal: Pr. 60 to Pr. 63 setting "10"

Used to reset the alarm stop state established when the inverter's protective function is activated. The reset signal immediately sets the control circuit to the initial (cold) status, e.g. initializes the electronic thermal relay function protection circuit. It shuts off the inverter output at the same time. During reset, the inverter output is kept shut off. To give this reset input, short terminals RES-SD for more than 0.1s. When the shorting time is long, the operation panel or parameter unit displays the initial screen, which is not a fault. After opening terminals RES-SD (about 1s), operation is enabled. The reset terminal is used to reset the inverter alarm stop state. If the reset terminal is shorted, then opened while the inverter is running, the motor may be restarted during coasting (refer to the timing chart below) and the output may be shut off due to overcurrent or overvoltage. Setting either "1" or "15" in reset selection Pr. 75 allows the accidental input of the reset signal during operation to be ignored. (For details, refer to page 109.)

CAUTION

Frequent resetting will make electronic thermal relay function invalid.

Page 51

How to use the input signals (assigned terminals

WIRING

RL, RM, RH, STR)

1.5.9 PID control valid terminal:

Pr. 60 to Pr . 6 3 setting

"14"

To exercise PID control, turn on the X14 signal. When this signal is off, ordinary inverter operation is performed. For more information, refer to page 117.

♦Related parameters♦

Pr. 88 "PID action selec tion ", Pr. 89 "PID propo rti on al ba nd ", Pr. 90 "PID i nte gr al t ime", Pr. 91 "PID upper limit", Pr. 92 "PID lower limit", Pr. 93 "PID action set point for PU operation", Pr. 94 "PID differential time" (Refer to page 117.)

1.5.10 PU operation/external operation switchover:

setting

"16"

Pr. 60 to Pr. 63

You can change the operation mode. With "8" set in Pr. 79 "operation mode selection", turning on the X16 signal shifts the operation mode to the external operation mode and turning off the X16 signal shifts it to the PU operation mode. For details, refer to page 113.

♦Related parameters♦

Pr. 79 "operation mode selection" (Refer to page 113.)

Page 52

Connection to the Stand-Alone Option

FR-S520E-0.4K, 0.75K

P/+

FR-S520E-1.5K to 3.7K

Brake resistor

T/L3

N/-

P/+

1.6 Connection to the Stand-Alone Option

The inverter accepts a variety of stand-alone option units as required. Incorrect connection will cause inverter damage or accident. Connect and operate the option unit carefully in accordance with the corresponding option unit manual.

1.6.1 Connection of the dedicated external brake resistor (option) (FR-S520E-0.4K to 3.7K only)

REMARKS

A dedicated exte rnal brake resistor can be connected to the FR-S520E-0.4K to 3.7K .

Connect a brake resistor across terminals P/+ and PR. Connect a dedicated brake resistor only. (For the locations of terminals P/+ and PR, refer to the terminal block layout (page 6).)

CAUTION

If the transistors in the inverter should become faulty, the resistor can be unusually hot, causing a fire. Therefore, install a magnetic contactor (MC) on the inverter's power supply side to configure a circuit so that a current is shut off in case of fault. (For connection of the electro magnetic contactor, refer to page 16.)

Page 53

Connection to the St and-Alone Option

WIRING

Motor

Inverter

BU(-H) type brake unit

T(Caution 4)

U V W

HCHBHA TB

OCR

NFB

OFF

OCR

Remove jumpers.

Discharge resistor

Connect a jumper.

Power supply

(Caution 3)

R/L1 S/L2 T/L3

N/-

P/+

1.6.2 Connection of the brake unit (BU type)

Connect the BU type brake unit correctly as shown below. Incorrect connection will damage the inverter. Remove jumpers across terminals HB-PC and TB-HC and connect a jumper across terminals PC-TB of the brake unit.

CAUTION

1. The wiring distance between the inverter, brake unit and discharge resistor should be within 2m. If twisted wires are used, the distance should be within 5m.

2. If the transistors in th e brake unit should b ecome faulty, the resistor can be unusually hot, causing a fire. Therefore, install a magnetic contactor on the inverter's power supply side to shut off a current in case of fault.

3. The N terminal is not provided for the FR-S520E-0.1K to 0.75K.

4. When the power supply is 400V class, install a step-down transformer.

Page 54

Connection to the Stand-Alone Option

1.6.3 Conne ction of the high power factor converter (FR-HC)

When connecting the high power factor converter (FR-HC) to suppress power supply harmonics, perform wiring securely as shown below. Incorrect connection will damage the high power factor converter and inverter.

Power

supply

(Caution 2)

MC1MC2

RSTR4S4T4 N

From FR-HCL02

MC2 MC1

NFB

High power factor converter (FR-HC)

R4S4T4

R3S3T3

External box

R2S2T2

FR-HCL01

(Caution 2)

Y1 or Y2 RDY RSO SE

(Caution 5)

Inverter

(Caution 2)

(Caution 1)

RES (Caution 4)

MRS (Caution 4)

(Caution 6)

CAUTION

1. Use sink logic (factory setting) when the FR-HC is connected. The FR-HC cannot be connected when source logic is selected.

2. The power input terminals R, S, T must be open. Incorrect connection will damage the inverter. Opposite polarity of terminals N, P will damage the inverter.

3. The voltage phases of terminals R, S, T and terminals R4, S4, T4 must b e matched before connection.

4. Use Pr. 60 to Pr. 63 (input terminal function selection) to assign the terminals used for the RES and MRS signals.

5. Do not insert NFB between terminals P-N (P - P, N - N)

6. The N terminal is not provided for the FR-S520E-0.1K to 0.75K.

Page 55

Connection to the St and-Alone Option

WIRING

1.6.4 Connection of the power regeneration common converter (FR-CV)

When connecting the FR-CV type power regeneration common converter, connect the inverter terminals (P, N) and FR-CV type power regeneration common converter terminals as shown below so that their signals match with each other.

Three-phase

C power

supply

NFB

MC1

Dedicated stand-alone reactor (FR-CVL)

R/L11 S/L21 T/L31

R2/L12 S2/L22 T2/L32

FR-CV power regenerative common converter

(Caution 2)

R2/L

S2/L

T2/L

(Caution 5) R/L11 S/L21 T/MC1

P/L+

N/L-

P24

RDYA

RDYB

RSO

(Caution 4)

(Caution 1)

S T

Inverter

P N

(Caution 7)

(Caution 6)

MRS (Caution 3)

RES (Caution 3)

CAUTION

1. Use sink logic (factory setting) when the FR-CV is connected. The FR-CV

cannot be connected when source logic is selected.

2. The power input terminals R, S, T must be open. Incorrect connection will

damage the inverter. Opposite polarity of terminals N, P will damage the inverter.

3. The voltage phases of terminals R/L11, S/L21, T/MC1 and terminals R2/L1,

S2/L2, T2/L3 must be matched before connection.

4. Use Pr. 60 to Pr. 63 (input terminal function selection) to assign the terminals

used for the RES and MRS signals.

5. Do not insert NFB between terminals P-N (P/L+ - P, N/L− - N)

6. Make sure to connect the terminal R/L11, S/L21, T/MC1 to the power supply.

Running the inverter without connecting the terminals will damage the power regeneration common converter.

7. The N terminal is not provided for the FR-S520E-0.1K to 0.75K.

Page 56

Handling of the RS-485 connector

1.7 Handling of the RS-485 connector

<RS-485 connector pin layout> View A of the inverter (receptacle

side)

8) to 1)

View A

CAUTION

1. Do not plug the connector to a computer LAN port, fax modem socket, telephone modular connector etc.. The product could be damaged due to differences in electrical specifications.

2. Pins 2 and 8 (P5S) are provid ed for the parameter unit power su pply. Do not use them for any other purpose or when making parallel connection by RS485 communication.

3. Refer to page 137 for the communication parameters.

1.7.1 Connection of the parameter unit (FR-PU04)

When connecting the parameter unit to the RS-485 connector, use the optional parameter unit connection cable (FR-CB2 ).

CAUTION

When the parameter unit is used, the operation other than the stop key

STOP

( ) of the operation panel is disabled.

RESET

View A

1) SG

2) P5S

3) RDA

4) SDB

5) SDA

6) RDB

7) SG

8) P5S

Refer to page 156 for the parameters related to parameter unit setting.

Page 57

Handling of the RS-485 connector

WIRING

RS-485

connector

Inverter

Station 0

Computer

RS-485 interface/ terminal

10BASE-T cable 1)

RJ-45 connector 2)

RS-485

connector

Inverter

Station 0

Computer

10BASE-T cable 1)

RJ-45 connector 2)

RS-232C cable

Max. 15m

RS-232C connector

RS-232C RS-485 converter

Product Model Maker

1) 10BASE-T cable

SGLPEV-T 0.5mm

× 4P

* Do not use pins No. 2, 8 (P5S).

Mitsubishi Cable Industries, Ltd.

2) RJ-45 connector 5-554720-3 Tyco Electronics Corporation

1.7.2 Wiring of RS-485 communication

Use the RS-485 connector to perform communication operation from a personal computer etc. When the RS-485 connector is connected with a personal, FA or other computer by a communication cable, a user program can run and monitor the inverter or read and write to the parameters. For parameter setting, refer to page 135.

•Conforming standard: EIA-485 (RS-485)

•Transmission format: Multidrop link system

•Communication speed: Max. 19200bps

•Overall extension: 500m

Refer to page 135 for the setting related to RS-485 communication operation.

<System configuration examples> (1) Connection of a computer to the inverter (1:1 connection)

Computer-inverter connection cable Refer to the following for the cable (RS-232C

⇔RS-485 converter) for connection of

the computer having the RS-232C interface with the inverter. Example of product available on the market (as of April, 2004)

Model Maker

FA-T-RS40 *

Mitsubishi Electric Engineering Co., Ltd.

*The converter cable cannot connect two or more inverters (the computer and

inverter are connected on a 1:1 basis). Since the product is packed with the RS232C cable and RS-485 cable (10BASE-T + RJ-45 connector), the cable and connector need not be prepared separately.

REMARKS

Refer to the follo wing when fabricating the cable on the user side. Example of produc t available on the market (as of April, 2004)

Page 58

Handling of the RS-485 connector

* Do not use pins No. 2, 8 (P5S) of the 10BASE-T cable.

Product Model Maker

1) 10BASE-T cable SGLPEV-T 0.5mm × 4P* Mitsubishi Cable Industries, Ltd.

2) RJ-45 connector 5-554720-3 Tyco Electronics Corpor ation

(2) Combination of computer and multiple inverters (1:n connection)

Station n

Computer

Station 0

Inverter

RS-485

connector

RS-485 interface/ terminal

Distribution terminal

10BASE-T cable 1)

Station 1

Inverter

RS-485

connector

Distribution terminal

RS-232C cable

Computer

RS-232C connector

Max. 15m

Converter

10BASE-T cable 1)

REMARKS

Refer to the follo w ing when fabricating the cable on the user side . Example of produc t available on the market (as of April, 2004)

Station 1

Inverter

RS-485

connector

Station 2

Inverter

RS-485

connector

RJ-45 connector 2)

(Max. 32 inverters)

connector

RJ-45 connector 2)

Station n

connector

Inverter

RS-485

Termination resisto

Inverter

RS-485

Termination resisto

Page 59

Handling of the RS-485 connector

WIRING

SDB

SDA

RDB

RDA

CSB

CSA

RSB

RSA

RDB

RDA

SDB

SDA

SG SGSG

RDB

RDA

SDB

SDA

RDB

RDA

SDB

SDA

Computer

Terminating resistor (*2)

Cable connection and signal direction

10 BASE-T Cable

(*1)

Station 1 Station 2 Station n

Inverter

Inverter Inverter

1) Wiring of one RS-485 computer and one inverter

Computer Side Terminals

Signal

name

RDA

RDB SDA SDB RSA RSB CSA CSB

Description

Receive data Receive data

Send data

Send data Request to send Request to send

Clear to send Clear to send

Signal ground

Frame ground

2) Wiring of one RS-485 computer and "n" inverters (several inverters)

Cable connection and signal direction

10 BASE-T Cable

(*1)

0.3mm or more

RS-485 connector

Inverter

SDA SDB RDA RDB

REMARKS

*1. Make connection in accordance with the i nstruction manual of t he computer to be use d

with. Fully check t h e terminal numbers of the computer since th ey change with the model.

*2. The inverters may be affected by reflection depending on the transmission speed or

transmission distance. If this reflection hinders communication, provide a terminating resistor. When the RS-485 conne ctor is used fo r co nne cti on, a ter min ati ng re sist or can not be fitted, so use a distributor. Connect the terminating resistor to only the inverter remotest

Ω)

from the computer. (Terminating resistor: 100

Page 60

Design information

1.8 Design information

1) Provide electrical and mechanical interlocks for MC1 and MC2 which are used for commercial power supply-inverter switchover. When the wiring is incorrect or if there is a commercial power supply-inverter switch-over circuit as shown below, the inverter will be damaged by leakage current from the power supply due to arcs generated at the time of switchover or chattering caused by a sequence error.

2) If the machine must not be restarted when power is restored after a power failure, provide a magnetic contactor in the inverter's primary circuit and also make up a sequence which will not switch on the start signal. If the start signal (start switch) remains on after a power failure, the inverter will automatically restart as soon as the power is restored.

3) Since the input signals to the control circuit are on a low level, use two or more parallel micro signal contacts or a twin contact for contact inputs to prevent a contact fault.

4) Do not apply a large voltage to the contact input terminals (e.g. STF) of the control circuit.

5) Always apply a voltage to the alarm output terminals (A, B, C) via a relay coil, lamp etc.

6) Make sure that the specifications and rating match the system requirements.

1) Commercial power supply-inverter switchover

MC1

Power

supply

R S T

Inverter

MC2

Leakage current

Interloc

3) Low-level signal contacts

Low-level si gn al contacts Twin contact

Page 61

2. FUNCTIONS

This chapter explains the "functions" for use of this product. For simple variable-speed operation of the inverter, the factory settings of the parameters may be used as they are. Set the necessary parameters to meet the load and operational specifications. Refer to the instruction manual (basic) for the operation procedures. Always read the instructions before using the functions.

2.1 Function (Parameter) list ................................................. 52

2.2 List of parameters classified by purpose of use........... 65

2.3 Explanation of functions (parameters)........................... 67

2.4 Output terminal function parameters ............................. 90

2.5 Current detection function parameters.......................... 92

2.6 Display function parameters........................................... 94

2.7 Restart operation parameters.......................................... 96

2.8 Additional function parameters ...................................... 99

2.9 Terminal function selection parameters......................... 102

2.10 Operation selection function parameters ...................... 105

2.11 Auxiliary parameters........................................................ 124

2.12 Maintenance parameters ................................................. 126

2.13 Brake parameters (FR-S520E-0.4K to 3.7K only)........... 130

2.14 Calibration parameters .................................................... 131

2.16 Communication parameters............................................ 135

2.17 Parameter unit (FR-PU04) setting ................................... 156

CAUTION

As the contact input terminals RL, RM, RH, STR, open collector output terminal RUN and contact output terminals A, B, C can be changed in functions by parameter setting, their signal names used for the corresponding functions are used in this chapter (with the exception of the wiring examples). Note that they are not terminal names.

REMARKS

Parameter copy Use of the parameter unit (FR-PU04) allows the parameter values to be copied to another FR-S500 series inverter. After batch-reading the parameters of the copy source inverter, you can connect the parameter unit to the copy destination inverter and batch-write the parameters. For the operation procedure, refer to the instruction manual of the parameter unit (FR-PU04).

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Page 62

Function (Parameter) list

2.1 Function (Parameter) list

CAUTION

indicates that the setting can be changed during operation i f Pr. 77 "parameter write disable selection" has been set to "0" (factory setting). (Note that the Pr. 53, Pr. 70 and Pr. 72 values can be changed only during PU operation.)

Parameter List

Parameter

*1. The factory setting varies with the inverter capacity: 5% for FR-S540E-1.5K and 2.2K, 4%

Indica-

tion

0 Torque boost 0 to 15% 0.1%

1 Maximum frequency 0 to 120Hz 0.1Hz 60Hz 68 2 Minimum freque nc y 0 to 120Hz 0.1Hz 0Hz 68 3 Base frequency 0 to 120Hz 0.1Hz 60Hz 69

4 5 6

7 Acceleration time 0 to 999s 0.1s 5s 71 8 Deceleration time 0 to 999s 0.1s 5s 71

30 79

for FR-S540E-3.7K.

Multi-speed setting (high speed)

Multi-speed setting (middle speed)

Multi-speed setting (low speed)

Electronic thermal O/L relay

Extended function display selection

Operation mode selection

Name

Setting

Range

0 to 120Hz 0.1Hz 60Hz 70 0 to 120Hz 0.1Hz 30Hz 70 0 to 120Hz 0.1Hz 10Hz 70

0 to 50A 0.1A

0, 1 1 0 84 0 to 4, 7, 8 1 0 113

Minimum

Setting

Increments

Factory

Setting

6%/5%/

4%/ (*1)

Rated

output

current

Refer

To:

Cus-

tomer

Setting

Page 63

FUNCTIONS

Parameter List

Function (Parameter) list

The extended function parameters are made valid by setting "1" in Pr. 30 "extended function display selection". (For more detailed information on the way to set Pr. 30, refer to the instruction manual (basic).)

Minimum

Setting

Increments

Factory

Setting

1077

1078

Func-

Para-

tion

Standard operation functions

Indica-

meter

tion

12 13

15 Jog frequency 0 to 120Hz 0.1Hz 5Hz 78

Name Setting Range

Parameters 0 to 9 are basic function param eters.

DC injection brake operation frequency

DC injection brake operation time

DC injection brake voltage

Starting frequency

Load pattern selection

Jog acceleration/ deceleration time

RUN key rotation direction selection

Base frequency voltage

Acceleration/ deceleration reference frequency

Stall prevention function selection

Stall prevention operation level

Stall prevention operation level compensation factor at double speed

0 to 120Hz 0.1Hz 3Hz 75

0 to 10s 0.1s 0.5s 75

0 to 15% 0.1% 6% 75 0 to 60Hz 0.1Hz 0.5Hz 76

0:For constant-torque

loads,

1:For variable-torque

loads, 2:For vertical lift loads, 3:For vertical lift loads

0 to 999s 0.1s 0.5s 7 8

0: Forward rotation, 1: Reverse rotation

0 to 800V, 888, - - - 1V - - - 69

1 to 120Hz 0.1Hz 60Hz 71

0 to 31, 100 1 0 79

0 to 200% 1% 150% 81

0 to 200%, - - - 1% - - - 81

Refer

To:

Cus-

tomer

Setting

Page 64

Function (Parameter) list

Parameter List

Func-

tion

Standard operation functions

Para-

meter

Indica-

tion

Name Setting Range

Minimum

Setting

Increments

Factory

Setting

Multi-speed

setting

0 to 120Hz, - - - 0.1Hz - - - 70

(speed 4) Multi-speed

setting

0 to 120Hz, - - - 0.1Hz - - - 70

(speed 5) Multi-speed

setting

0 to 120Hz, - - - 0.1Hz - - - 70

(speed 6) Multi-speed

setting

0 to 120Hz, - - - 0.1Hz - - - 70

(speed 7) Stall

prevention

operation reduction

0 to 120Hz 0.1Hz 60Hz 81

starting frequency

0: Linear acceleration/

deceleration,

1: S-pattern acceleration/

deceleration A,

2: S-pattern acceleration/

1083

Acceleration/ deceleration pattern

deceleration B

Parameter 30 is basic function parameter.

31 32 33 34 35 36

Frequency jump 1A

Frequency jump 1B

Frequency jump 2A

Frequency jump 2B

Frequency jump 3A

Frequency jump 3B

0 to 120Hz, - - - 0.1Hz - - - 84 0 to 120Hz, - - - 0.1Hz - - - 84 0 to 120Hz, - - - 0.1Hz - - - 84 0 to 120Hz, - - - 0.1Hz - - - 84 0 to 120Hz, - - - 0.1Hz - - - 84 0 to 120Hz, - - - 0.1Hz - - - 84

37 Speed display 0, 0.1 to 999 0.1 0 85

Frequency

setting voltage

1 to 120Hz 0.1Hz 60Hz 86

gain frequency Frequency

setting current

1 to 120Hz 0.1Hz 60Hz 86

gain frequency Start-time

earth (ground ) fault detectio n

0: Not detected 1: Detected

1090

selection

Refer

To:

Cus-

tomer

Setting

Page 65

Function (Parameter) list

FUNCTIONS

Parameter List

Func-

Para-

meter

Indica-

tion

Output terminal functions

Second functions

Current detection

Name Setting Range

Up-tofrequency sensitivity

Output frequency detection

Output frequency detection for reverse rotation

Second acceleration/ deceleration time

Second deceleration time

Second torque boost

Second V/F (base frequency)

Output current detection level

Output current detection period

Zero current detection level

Zero current detection period

0 to 100% 1% 10% 9 0

0 to 120Hz 0.1Hz 6Hz 91

0 to 120Hz, - - - 0.1Hz - - - 91

0 to 999s 0.1s 5s 71

0 to 999s, - - - 0.1s - - - 71

0 to 15%, - - - 0.1% - - - 67

0 to 120Hz, - - - 0.1Hz - - - 69

0 to 200% 1% 150% 92

0 to 10s 0.1s 0s 92

0 to 200% 1% 5% 93

0.05 to 1s 0.01s 0. 5s 93

Minimum

Setting

Increments

Factory

Setting

Refer

To:

Cus-

tomer

Setting

Page 66

Function (Parameter) list

Parameter List

Func-

tion

Display functions

Automatic restart

Additional function

functions

Para-

meter

Indica-

tion

Name Setting Range

0: Output frequency,

Operation panel display data selection

1: Output current, 100:Set frequency

during stop/o utput frequency during operation

Frequency setting operation selection

FM terminal function selection

0:Setting dial

frequency setting mode

1:Setting dial

potentiometer mode

0:Output frequency

monitor

1:Output current

monitor

Frequency monitoring

0 to 120Hz 0.1Hz 60Hz 96

reference Current

monitoring

0 to 50A 0.1A

reference Restart

coasting time

Restart cushion time

0 to 5s, - - - 0.1s - - - 96

0 to 60s 0.1s 1s 96

0:Without remote

setting function

1: With remote setting

Remote setting function selection

function With frequency setting storage function

2:With remote setting

function Without frequency setting storage function

Minimum

Setting

Increments

Factory

Setting

Refer

To:

1094

1095

1094

Rated output

current

1099

Cus-

tomer

Setting

Page 67

Function (Parameter) list

FUNCTIONS

Parameter List

Func-

Para-

meter

68 69

Indica-

tion

Terminal function selection

Operation selection f unctions

Name Setting Range

RL terminal function selection RM terminal function selection RH terminal function selection STR terminal function selection RUN terminal function selection

A, B, C terminal function selection

Retry selection

Number of retries at alarm occurrence

Retry waiting time Retry count display erase

0: RL, 1: RM, 2: RH, 3: RT, 4: AU, 5: STOP, 6: MRS, 7: OH, 8: REX, 9: JOG, 10: RES, 14: X14, 16: X16,

- - -: STR (The STR signal can be assigned to the STR terminal only.)

0:RUN, 1:SU, 3:OL, 4:FU, 11:RY, 12:Y12, 13:Y13, 14:FDN, 15:FUP, 16:RL, 93:Y93, 95:Y95 98:LF, 99:ABC (The Y93 signal ca n be assigned to th e RUN terminal only.) 0:OC1 to 3, OV1 to 3,

THM, THT, BE, GF,

OHT, OLT, PE, OPT 1:OC1 to 3, 2:OV1 to 3, 3:OC1 to 3, OV1 to 3 0: No retry 1 to 10: Without alarm output during retry operation 101 to 110: With alarm outp u t during retry operation

0.1 to 360s 0.1s 1s 105 0:Cumulative count

erase

Minimum

Setting

Increments

Factory

Setting

10102

11102

12102

1- - -102

10104

199104

10105

Refer

To:

Cus-

tomer

Setting

Page 68

Function (Parameter) list

Soft-

PWM

Long wiring

mode 0 Absence Absence 1 Presence Absence

10 Absence Presence 11 Presence Presence

Parameter List

Func-

tion

Operation selection

Para-

Indica-

meter

tion

Soft-PWM setting

functions

71 Applied mot or

PWM

frequency selection

0-5V/0-10V selection

Input filter time constant

Name Setting Range

Presence/absence of Soft-PWM control and long wiring mode can be selected. When Soft-PWM is valid, the metallic tone of motor noise can be changed into unoffending composite tone. In the long wiring mode, surge voltage s can be suppressed independently of the wiring length.

0, 100:

Thermal characteristic for Mitsubishi standard motor

1, 101:

Thermal characteristic for Mitsubishi

constant-torque motor (Thermal characteristic for Mitsubishi constanttorque motor is selected with the RT signal ON when 100 and 101 are set.)

0 to 15 1 1 107 0: For 0 to 5VDC input

1: For 0 to 10VDC input 0:2-step moving

average processing 1 to 8:

Exponential

average value of 2n

at the setting of n

Minimum

Setting

Increments

Factory

Setting

Refer

To:

11107

1073

10108

11109

Cus-

tomer

Setting

Page 69

Function (Parameter) list

FUNCTIONS

Parameter List

Func-

Para-

meter

Indica-

tion

Operation selection functions

Multi-speed operati on f unction

Name Setting Range

0:Reset normally

enabled/PU stop key disabled

1:Enabled at alarm

Reset selection/PU stop selection

Cooling fan operation selection

Parameter write disable selection

Reverse rotation prevention selection

Parameter 79 is basic function parameter. Multi-speed setting (speed 8) Multi-speed setting (speed 9) Multi-speed setting (speed 10) Multi-speed setting (speed 11)

occurrence only /PU stop key disa bl ed

14:Reset normally

enabled/normally decelerated to st op

15:Enabled at alarm

occurrence only/ normally decelerated to stop

0:Operation started at

power on

1:Cooling fan ON/

OFF control

0:Write is enabled

only during a sto p

1:Write disabled

(except some parameters)

2:Write during

operation enabled

0:Both forward

rotation and reverse rotation enabled,

1:Reverse rotation

disabled,

2:Forward rotation

disabled

0 to 120Hz, - - - 0.1Hz - - - 70

Minimum

Setting

Increments

Factory

Setting

114109

1 1 111

10112

10113

Refer

To:

Cus-

tomer

Setting

Page 70

Function (Parameter) list

Parameter List

Func-

tion

Multi-speed operation function

PID control

Slip compensation

Para-

meter

90 91 92

Indica-

tion

Name Setting Range

Multi-speed setting

0 to 120Hz, - - - 0.1Hz - - - 70 (speed 12) Multi-speed setting

0 to 120Hz, - - - 0.1Hz - - - 70 (speed 13) Multi-speed setting

0 to 120Hz, - - - 0.1Hz - - - 70 (speed 14) Multi-speed setting

0 to 120Hz, - - - 0.1Hz - - - 70 (speed 15) PID action selection

20: PID reverse action,

21: PID forward action PID proportional

0.1 to 999%, - - - 0.1% 100% 117 band PID integral time PID upper limit PID lower limit

0.1 to 999s, - - - 0.1s 1s 117

0 to 100%, - - - 0.1% - - - 117 0 to 100%, - - - 0.1% - - - 117

PID action set point for PU

0 to 100% 0.01% 0% 117 operation PID differential

0.01 to 10s, - - - 0.01s - - - 117 time Rated motor slip

0 to 50%, - - - 0.01% - - - 124

Slip compensation

0.01 to 10s 0.01s 0.5s 124 time constant Constantoutput region slip

0, - - - 1 - - - 124 compensation selection Automatic torque boost selection

0.1 to 3.7kW, - - - 0.01kW - - - 125 (Motor capacity)

Minimum

Setting

Increments

Factory

Setting

Refer

To:

120117

Cus-

tomer

Setting

Automatic torque boost

Motor primary resistance

0 to 50

Ω, - - - 0.01Ω - - - 126

Page 71

Function (Parameter) list

FUNCTIONS

Parameter List

Maintenance parameters

Mainte-

Func-

tion

Maintenance function

nance

parame-

ters

H1 (503)

H2 (504)

H3 (555) H4 (556)

H5 (557)

Indi-

cation

Maintenance timer

Maintenance timer alarm o utput set time

Current average time

Data output mask time

Current average value monitor signal output reference current

Name Setting Range

0 to 999

0 to 999, - - -

0.1 to 1s 0.1s 1s 127 0 to 20s 0.1s 0s 127

0.1 to 999A 0.1A 1A 127

Minimum

Setting

Incre-

ments

(1000h)

Factory

Setting

(36000h)

Refer

0126

To:

126

Cus-

tomer

Setting

Additional parameters

Func-

tion

Additional

Mainte-

nance

parame-

H6 (162)

function

H7 (559)

ters

Indi-

cation

Automatic restart after instant aneous power failure selection

Second ele ctronic thermal O/L re la y

Name Setting Range

0, 1, 10 1 1 96

0 to 50A, - - - 0.1A - - - 73

Minimum

Setting

Incre-

ments

Factory

Setting

Refer

To:

Cus-

tomer

Setting

Brake parameters

Set when using an optional brake resistor with the FR-S520E-0.4K to 3.7K.

Func-

tion

Brake

Mainte-

nance

parame-

b1 (560)

b2 (561)

function

ters

Indi-

cation

Regenerative function selec tion

Specia l regenerative brake duty

Name Setting Range

0, 1 1 0 130

0 to 30% 0 .1% 0 % 130

Minimum

Setting

Incre-

ments

Factory

Setting

Refer

To:

Cus-

tomer

Setting

Page 72

Function (Parameter) list

Calibration parameters

Func-

Parame-

tion

Parameter List

ters

cation

C1 (900)

C2 (902)

C3 (902) C4 (903)

C5 (904)

C6 (904)

Calibration parameters

C7 (905) C8 (269) Paramet er set by manufacturer. Do not set.

CLr Parameter clear

Indi-

FM terminal calibration

Frequency setting voltage bias frequency

Frequency setting voltage bias

Frequency setting voltage gain

Frequency setting current bias frequency

Frequency setting current bias

Frequency setting current gain

Name Setting Range

   131

0 to 60Hz 0.1Hz 0Hz 86

0 to 300% 0.1% 0% (*) 86 0 to 300% 0.1 %

0 to 60Hz 0.1Hz 0Hz 86

0 to 300% 0.1% 20% (*) 86 0 to 300% 0.1 %

0: Not executed 1: Parameter clear 10: All clear

Minimum

Setting

Incre-

ments

Factory

Setting

10134

96%

(*)

100%

(*)

Refer

To:

Cus-

tomer

Setting

ECL

Clear parameters

Alarm history clear

0:Not cleared, 1:Alarm history

clear

10134

* Factory settings may differ because of calibration parameters.

Page 73

FUNCTIONS

Parameter List

Function (Parameter) list

Communication Parameters

Func

tion

Parame-

ter

Indica-

tion

Name Setting Range

Minimum

Setting

Incre-

ments

Factory

Setting

0 to 31: Specify

n1 (331)

Communication station number

the station number of the

10137

inverter.

n2 (332)

Communication speed

n3 (333) Stop bit length

48: 4800bps, 96: 9600bps, 192: 19200bps

0, 1: (Data leng th 8), 10, 11: (Data

1 192 137

11137

length 7)

0:Absent,

n4 (334)

Parity check presence/ absence

1:With odd parity

check,

2:With even

12137

parity check

Number of

n5 (335)

communication

0 to 10, - - - 1 1 137 retries Communication

n6 (336)

check time

0 to 999s, - - - 0.1s - - - 137 interval

n7 (337)

Waiting time setting

0 to 150ms, - - - 1 - - - 137

0:Command

source is

n8 (338)

Operation command source

computer,

1:Command

source is

10152

external

Communication Parameters

terminal

0:Command

sourse is

n9 (339)

Speed command source

computer,

1:Command

source is

10152

external terminal

0: As set in Pr. 79.

n10

(340)

Link startup mode selection

1: Star ted i n

computer link

10153

operation mode.

0:Without CR/LF,

n11

(341)

CR/LF selection

1:With CR,

without LF

11137

2:With CR/LF

0:Write to RAM

n12

(342)

PROM write

selection

and E2PROM

1:Write to RAM

10155

only

Refer

To:

Cus-

tomer

Setting

Page 74

Function (Parameter) list

0 (Light) 63 (Dark)

PU parameters When the parameter unit (FR-PU04) is used, operation from the operation panel is not accepted. (The stop key ( ) is valid)

Func

Parame-

tion

Parameter List

(145)

(990)

ter

n13

n14

Indica-

tion

PU display language selection

PU buzzer control

STOP

RESET

Name Setting Range

0: Japanese, 1: English, 2: German, 3: French, 4: Spanish, 5: Italian, 6: Swedish, 7: Finish 0:Without sound, 1:With sound

Minimum

Setting

Incre-

Factory

Setting

Refer

To:

ments

10156

11156

Cus-

tomer

Setting

n15

(991)

PU contrast adjustment

158157

0:Selectable

between output frequency and output current

n16

(992)

PU parameters

PU main display screen data selection

100: (during stop): Set frequency, output current

10157

(during operation): Output frequency, output current 0:Without

disconnected PU error,

1:Error at

n17

(993)

disconnected PU detection/PU setting lock

disconnected PU,

10:Without

10158

disconnected PU error (PU operation disable)

REMARKS

1.The parameter number in parentheses is the one for use with the parameter unit (FR-PU04).

2. Set "9999" when settin g a va lu e " - - -" using the parameter unit (FR-PU04) .

3. The deci m al places of a value 100 or more (3 digits or more) cannot be displayed.

Page 75

List of parameters classified by purpose of use

FUNCTIONS

2.2 List of parameters classified by purpose of use

Set the parameters according to the operating conditions. The following list indicates purpose of use and corresponding parameters.

Purpose of Use

Use of extended function parameters Pr. 30 Operation mode selection Accelerati on /d eceleration time /pattern

adjustment Selection of outpu t characteristics optimum for load characteristics Output frequency restriction (limit) Pr. 1, Pr. 2

Operation over 60Hz Adjustment of frequency setting signals

and output s Motor output torque adjustment Pr. 0, Pr. 98 Brake operation adj ustment Pr. 10, Pr. 11, Pr. 12, brake parameter b1, b2

Related to operation

Multi-speed operation

Jog operation Pr. 15, Pr. 16 Frequency jump operation Pr. 31, Pr. 32, Pr. 33, Pr. 34, Pr. 35, Pr. 36 Automatic restart operation after instantaneous power failure Slip compensation setting Pr. 95 to Pr. 97 Setting of output characteristics matching the motor Electromagnetic br ake operation timing Pr. 42, Pr. 64, Pr. 65

Sub-motor operation Operation in communicat i on with

personal computer

operation

Operation under PID co nt rol

Related to application

Noise reduction Pr. 70, Pr. 72

Parameter numbers which must be s et

Pr. 53, Pr. 79 (Communication parameters n10, n17)

Pr. 7, Pr. 8, Pr. 16, Pr. 20, Pr. 29, Pr. 44, Pr. 45

Pr. 3, Pr. 14, Pr. 19, Pr. 44, Pr. 45

Pr. 1, Pr. 38, Pr. 39, calibration parameter C4, C7 Pr. 38, Pr. 39, Pr. 73, calibration parameter C2 to C7

Pr. 1, Pr. 2, Pr. 4, Pr. 5, Pr. 6, Pr. 24, P r. 25, Pr. 26, Pr. 27, Pr. 80, Pr. 81, Pr. 82, Pr. 83, Pr. 84, Pr. 85, Pr. 86, Pr. 87

Pr. 57, Pr. 58, additional parameter H6

Pr. 3, Pr. 19, Pr. 71

Pr. 0, Pr. 3, Pr. 7, Pr. 8, Pr. 44, Pr. 45, Pr. 46, Pr. 47, additional parameter H7

Communication parameters n1 to n12 Pr. 60 to Pr. 65, Pr. 73, Pr. 79, Pr. 88

to Pr. 94

Parameter Numbers

Page 76

List of parameters classified by purpose of use

Purpose of Use

Frequency meter calibration Display of monitor on operation panel or

parameter unit (FR-PU04)

Related to

monitoring

Display of speed, etc. Pr. 37 , Pr. 52

Parameter numbers which must be set

Pr. 54, Pr. 55, Pr. 56, calibration parameter C1

Pr. 52, Communication parameter n16

Parameter Numbers

Function write pr evention Pr. 77 Reverse rotation prevention (Pr. 17), Pr. 78 Current detection Pr. 48 to Pr. 51, Pr. 64, Pr. 65

Motor stall prev ention Pr. 21, Pr. 22, Pr. 23, Pr. 28

Related to incorrect

operation prevention

Input terminal function assignment Pr. 60 to Pr. 63 Output terminal function assignment Pr. 64, Pr. 65 Increased cooli ng fan life Pr. 76 Motor protection from overheat Pr. 9, Pr. 71 Automatic restart operation at alarm stop Pr. 66 to Pr. 69

Others

Setting of earth (ground) fault overcurrent protection

Pr. 40

Inverter reset selection Pr. 75 Maintenance tim er output Maintenance paramet ers H1 to H5

Page 77

Explanation of functions (parameters)

FUNCTIONS

2.3 Explanation of functions (parameters)

2.3.1 Torque boost (Pr. 0 , Pr. 46 )

Increase this value for use when the inverter-to-motor distance is long or motor torque is insufficient in the low speed range (stall prevention is activated).

Motor torque in the low-frequency range can be adjusted to the load to increase the starting motor torque.

Parameter Name Factory Setting Setting Range Remarks

0 Torque boost 6%/5%/4% 0 to 15%

Second torque

boost

- - -

Pr.0 Pr.46

0 to 15%,

- - -

Setting range

The factory setting varies according to the inverter capacity. (Refer to the following table for details.)

- - -: Function invalid. Setting is enabled when Pr. 30 = "1".

•Assuming that the base frequency voltage is 100%, set the 0Hz voltage in %. Use the RT signal to switch between two different torque boosts. (Tur n on the RT signal to make Pr. 46 valid(*).)

REMARKS

* The RT signal acts as the second function selection signal and makes the other second functions valid.

voltage

Output

Output frequency (Hz)

When using an inverter-dedicated motor (constant-torque motor), make setting as indicated below. (If the factory set Pr. 71 value is changed to the setting for use with a constant-torque motor, the Pr. 0 setting changes to the corresponding value in the following table.)

Inverter Type Inverter Capacity Factory Setting Constant-torque Motor Setting

FR-S520E FR-S520SE FR-S510WE

FR-S540E

0.1K to 0.75K

1.5K to 3.7K 4%

0.4K, 0.75K 6% 6% (no change)

1.5K

2.2K

3.7K 4%

6% (no change)

4% 3%

CAUTION

•Selecting automatic torque boost control makes this p arameter setti ng invalid.

•A too large setting may cause the motor to overheat or result in an

overcurrent trip. The guideline is about 10% at the greatest.

♦Related parameters♦

• RT signal (secon d function "Pr. 46") setting⇒ Pr. 60 to Pr. 63 "input terminal function selection"

• Constant-torque motor setting ⇒ Pr. 71 "applied motor" (refer to page 73)

• Automatic torque boost control selection ⇒ Pr. 98 "automatic torque boost selection (motor

(refer to page 102)

capacity)" (refer to page 125)

Page 78

Explanation of functions (parameters)

2.3.2 Maximum and minimum frequency (Pr. 1 , Pr. 2 )

You can clamp the upper and lower limits of the output frequency.

Parameter Name F actory Setting Setting Range

1 Maximum frequency 60Hz 0 to 120Hz 2 M inimum frequency 0Hz 0 to 120Hz

•Use Pr. 1 to set the upper limit of the output frequency. If the frequency of the frequency command entered is higher than the setting, the output frequency is clamped at the maximum frequency.

•Use Pr. 2 to set the lower limit of the output frequency.

Output frequency (Hz)

Pr.1

Pr.2

(4mA)

Set frequency

5,10V

(20mA)

REMARKS

When using the potentiometer (frequency setting potentiometer) connected across terminals 2-5 to perform oper ation above 60Hz, change the Pr. 1 and Pr. 38 (Pr. 39 when using the potentiometer across terminals 4-5) values.

CAUTION

If the Pr. 2 setting is higher than the Pr. 13 "starting frequency" value, note that the motor will run at the frequency set in Pr. 2 according to the acceleration time setting by merely switching the start signal on, without entry of the command frequency.

♦Related parameters♦

• Starting frequency setting⇒ Pr. 13 "starting frequency" (refer to page 76)

• Maximum frequency setting using external potentiometer

⇒ P r. 30 "extended function display selection" (refer to page 84),

Pr. 38 "frequency setting voltage gain frequency", Pr. 39 "frequency setting current gain frequency" (refer to page 86)

Page 79

FUNCTIONS

Explanation of functions (parameters)

2.3.3 Base frequency, base frequency voltage (Pr.3 , Pr.19 , Pr.47 )

Used to adjust the inverter outputs (voltage, frequency) to the motor rating.

Parameter Name

3 Base frequency 60Hz 0 to 120 Hz 

Base frequency

voltage Second V/F

(base frequency)

*1. 1.9 times greater than the power supply voltage for the FR-S510WE-0.1K to 0. 75K. *2. Twice greater than the power supply voltage for the FR-S510WE-0.1K to 0.75K.

Factory

Setting

- - -

•In Pr. 3 and Pr. 47, set the base frequency (motor's rated frequency).

Use the RT signal to switch between these two different base frequencies. (Turn on the RT signal to make Pr. 47 valid.) (*) When running the standard motor, generally set the "base frequency" to the rated frequency of the motor. When running the motor using commercial power supplyinverter switch-over operation, set the base frequency to the same value as the power supply frequency. If only "50Hz" is given on the motor rating plate as the frequency, always set the "base frequency" to "50Hz". If it remains at "60Hz", the voltage may become too low and torque shortage occurs, resulting in an overload trip. Spec ial care must be taken when "1" is set in Pr. 14 "load pattern selection".

•Set the base voltage (e.g. rated voltage of motor) in Pr. 19.

CAUTION

1. Set 60Hz in Pr. 3 "base frequency" when using a Mitsubishi constant-torque motor.

2. When automatic torque boost is selected, Pr. 47 is invalid. When automatic torque boost is selected, setting "- - -" or "888" in Pr. 19 uses the rated output voltage.

REMARKS

* T he RT signal serves a s the second fu nction selection signal and makes t he other second

functions valid.

♦Related parameters♦

When rated motor frequency is "50Hz" ⇒ Pr. 14 "load pattern selection" (refer to page 77)

•

• RT signal (second function "Pr. 47") setting ⇒ Pr. 60 to Pr. 63 (input terminal function selection)

• Motor setting ⇒ Pr. 71 "applied motor" (refer to page 73)

• Automatic torque boost selection ⇒ Pr. 98 "automatic torque boost selection (motor capacity)"

(refer to page 125)

Pr.19

Output voltage

Setting

Range

0 to 800V,

888, - - -

0 to 120Hz,

- - -

(refer to page 102)

Pr.3 Pr.47

Remarks

888: 95% of power supply voltage (*1)

- - -: Same as power sup ply voltage (*2) Setting is enabled when Pr. 30 = "1".

- - -: Function i nvalid Setting is enabled when Pr. 30 = "1".

Output frequency (Hz)

Page 80

Explanation of functions (parameters)

REX

Speed 1

(high speed)

Speed 5

Speed 6

Speed 7

Time

ON ON ONON

ONONON

ON ONONON

Output frequency (Hz)

(low speed)

Speed 2

(middle speed)

Speed 4

Priority: RL>RM>RH

Speed 3

Time

Speed 9

Speed 10

Speed 11

Speed 12

Speed 13

Speed 14

Speed 15

ON ON ON ON

ONON ON ON ON ON ON ON

REX

Output frequency (Hz)

Speed 8

2.3.4 Multi-speed operation (Pr. 4 , Pr. 5 , Pr. 6 , Pr. 24 to Pr. 27 , Pr. 80 to Pr. 87 )

Used to switch between the predetermined running speeds.

Any speed can be selected by merely switching on/off the corresponding contact signals (RH, RM, RL, REX signals).

By using these functions with Pr . 1 "max imum frequency" and Pr. 2 "minimum frequency", up to 17 speeds can be set.

This function is valid in the external operation mode or in the combined operation mode which is available when Pr. 79 = "3" or "4".

Parameter Name

Multi-speed setting

(high speed) Multi-speed setting

(middle sp ee d) Multi-speed setting

(low speed)

24 to 27 80 to 87

•Set the running frequencies in the corresponding parameters.

Each speed (frequency) can be set as desired between 0 and 120Hz during inverter operation. When the parameter of any multi-speed setting is read, turn the to change the setting. In this case, press the ( ) to store the frequency. (This is also enabled in the external mode.) The setting is reflected by pressing the ( ).

•Assign the terminals used for signals RH, RM, RL and REX using Pr. 60 to Pr. 63.

(When terminal assignment is changed using Pr . 60 to P r. 63, the other functions may be affected. Please make setting after confirming the function of each terminal.)

Multi-speed setting (speeds 4 to 7)

Multi-speed setting (speeds 8 to 15)

SET

Factory

Setting

60Hz 0 to 120Hz  30Hz 0 to 120H z  10Hz 0 to 120H z 

- - -

WRITE

Setting

Range

0 to 120Hz, 0 to 120Hz,

SET

- - -

WRITE

Remarks

"- - -" = no setting. Setting enabled when Pr. 30 = "1".

Page 81

Explanation of functions (parameters)

FUNCTIONS

Running frequency

Acceleration

time

Deceleration

time

Time

Pr.20

Output frequency (Hz)

Pr.7 Pr.44

Pr.8 Pr.45

Acceleration Deceleration

Constant speed

CAUTION

1. The multi-speed set tings override the main speeds (across terminals 2-5, 45, setting dial). When the multi-speed settings and set ting dial are used in the combined operation mode (Pr. 79=3), the multi-speed settings have precedence.

2. The multi-speeds can also be set in the PU or external operation mode.

3. For 3-speed setting, if two or three speeds are simultaneously selected, priority is given to the set frequency of the lower signal.

4. Pr. 24 to Pr. 27 and Pr. 80 to Pr. 87 settings have no priority between them.

5. The parameter values can be changed during operation.

6. When using this function with the jog signal, the jog signal has precedence.

REMARKS

The frequency- set external terminals have the following priority: Jog > multi-speed operation > AU (terminal 4) > terminal 2

♦Related parameters♦

Maximum, minimum frequency setting ⇒ Pr. 1 "maximum frequency", Pr. 2 "minimum frequency"

•

(refer to page 68)

• Assignment of signals RH, RM, RL, REX to terminals ⇒ Pr. 60 to Pr. 63 (input terminal function

selection) (refer to page 102)

• External operation mode setting ⇒ Pr. 79 "operation mode selection" (refer to page 113)

• Computer link mode ⇒ Pr. 79 "operation mode selection" (refer to page 113), communication

parameter n10 "link startup mode selection" (refer to page 153)

• Speed command source ⇒ Communication parameter n9 "speed command source"

(refer to page 152)

2.3.5 Acceleration/deceleration time (Pr. 7 , Pr. 8 , Pr. 20 , Pr. 44 , Pr. 45 )

Used to set motor acceleration/ deceleration time. Set a larger value for a slower speed increase/decrease or a smaller value for a faster speed increase/decrease.

Parameter Name

7 Acceleration time 5s 0 to 999s ---------8 Deceleration time 5s 0 to 999s ----------

Acceleration/

deceleration refer ence frequency Second acceleration/

deceleration time Second deceleration

time

Factory

Setting

60Hz 1 to 120Hz

5s 0 to 999s

- - -

Setting

Range

0 to 999s,

- - -

Remarks

Setting is enabled when Pr. 30 = "1".

- - -: acceleration time= deceleration time.

Setting is enabled when Pr. 30 = "1".

Page 82

Explanation of functions (parameters)

t = 4×

× f

(Pr.3)

Frequency setting (Hz)

Acceleration/ deceleration time (s)

60 120

5 5 12

15 15 35

•Use Pr. 7 and Pr. 44 to set the acceleration time required to reach the frequency set in Pr. 20 from 0Hz.

•Use Pr. 8 and Pr. 45 to set the deceleration time required to reach 0Hz from the frequency set in Pr. 20.

•Pr. 44 and Pr. 45 are valid when the RT signal is on. (When the RT signal is on, the other second functions (Pr. 44, Pr. 45, Pr. 46, Pr. 47, additional parameter H7) are also selected.)

•Set "- - -" in Pr. 45 to make the deceleration time equal to the acceleration time (Pr. 44).

CAUTION

1. In S-shaped acceleration/deceleration pattern A (refer to page 83), the set time is the period required to reach the base frequency set in Pr. 3.

• Acceleration/deceleration time formula w hen the set frequency is the base

frequency or higher

T: Acceleration/deceleration time setting (s) f : Set frequency (Hz)

•Guideline for acceleration/deceleration time at the base frequency o f 60Hz

(0Hz to set frequency)

2. If the Pr. 20 setting is changed, the settings of calibration functions Pr. 38 and Pr. 39 (frequency setting signal gains) remain unchanged. To adjust the gains, adjust calibration functions Pr. 38 and Pr. 39.

3. When the setting of Pr. 7, Pr. 8, Pr. 44 or Pr. 45 is "0", the acceleration/ deceleration time is 0.04s.

4. If the acceleration/deceleration time is set to the shortest value, the actual motor acceleration/deceleration time cannot be made shorter than the shortest acceleration/deceleration time which is determined by the mechanical system's J (moment of inertia) and motor torque.

♦Related parameters♦

• Base frequency setting ⇒ Pr. 3 "base frequency" (refer to page 69)

• Accelerati on/deceleration pattern, S-pattern acceleration/deceleration A

⇒ Pr. 29 "acceleration/deceleration pattern" (refer to page 83)

• Calibration function ⇒ Pr. 38 "frequency setting voltage gain frequency"

• RT signal setting ⇒ Pr. 60 to Pr. 63 (input terminal function selection) (refer to page 102)

• Jog acceleration/deceleration time ⇒ Pr. 16 "jog acceleration/deceleration time"

Pr. 39 "frequency setting current gain frequency" (refer to page 86)

(refer to page 78)

Page 83

Explanation of functions (parameters)

FUNCTIONS

2.3.6

Selection and protection of a motor (Pr. 9 , Pr . 71 , H7 )

Set the motor used and protect the motor from overheat. This feature provides the optimum protective characteristics, including reduced motor cooling capability, at low speed.

POINT

•When using the Mitsubishi constant-torque motor Set "1" in Pr. 71 for V/F control or automatic torque boost control. The electronic thermal relay function is set to the thermal characteristic of the constant-torque motor.

•When you s elected the Mitsubishi constant-torque moto r, the values of the following parameters are automatically changed. (only when the setting values of those parameters are at factory setting) Pr. 0 "torque boost", Pr. 12 "DC injection brake voltage"

Para

meter

71 Applied moto r 0

(559)

Name

Electronic thermal O/L relay

Second electronic thermal O/L relay

Factory

Setting

Rated output

current(*)

- - -

Setting

Range

0 to 50A

0, 1,

100, 101

0 to 50A,

- - -

Remarks

- - -: Without second electronic thermal relay function

• * 0.75K or less is set to 85% of the rated inverter current.

• The parameter number in parentheses is the one for use with the parameter unit (FR-PU04).

•Refer to the following list an d se t Pr. 71 according to the m otor u sed. Setting "100 or 101" chan ges th ermal characteristic of the ele ct ron ic the rma l rela y functi o n to thermal chara cteristic s of a Mit subi shi const ant -torque mot or when the RT signa l is ON.

Pr. 71 Setting Thermal Characteristic of the Electroni cThermal Relay Functi on

0, 100 Thermal characteristics of a standard motor 1, 101

•Set the rated current [A] of the m otor in Pr. 9. (Normally set the rated current at 50 Hz.)

•Setting "0" in Pr. 9 disables electronic thermal relay function (motor protective

function). (The protective function of the inverter is activated.)

•When setting second electronic thermal relay function, set the motor rated current value in the additional parameter H7. The second electronic thermal relay function is valid when the RT signal is on. (When the RT signal is on, other second functions (Pr.44 to Pr.47) are also selected.)

CAUTION

•When two or more motors are connected to the inverter, they cannot be protected by the electronic thermal relay func tion. Install an external thermal relay to each motor.

•When a difference between the inverter and motor capacities is large and the setting becomes less than half amount of the inverter rated current, the protective characteristics of the electronic thermal relay function will be deteriorated. In this case, use an external thermal relay.

•A special motor cannot be protected by the electronic thermal relay function. Use an external thermal relay.

Thermal characteristics of a Mitsubishi constant-torque motor (This provides a 100% continuous torque characteristic in the low-speed region.)

Setting is

enabled

when

Pr. 30 = "1"

Page 84

Explanation of functions (parameters)

Pr. 71

applied

motor

First Motor Electronic Thermal Relay

Function

Second Motor Electronic Thermal

Relay Function

Pr. 9

setting

RT = OFF RT = ON

additional parameter H7 setting

RT = OFF RT = ON

- - -, 0

0.1 to 50A

standard

0.1 to 50A standard

- - 0

0.1 to 50A

standard

- - -, 0

0.1 to 50A

standard

0.1 to 50A

constant-

torque

- - 0

0.1 to 50A

standard

100

- - -, 0

0.1 to 50A

constanttorque

0.1 to 50A standard

- - 0

0.1 to 50A

constanttorque

101

- - -, 0

0.1 to 50A

constanttorque

0.1 to 50A

constant-

torque

- - 0

0.1 to 50A

constanttorque

standard...................Thermal chara ct er istic for

standard motor

constant-t or que ........Thermal chara ct er i st ic for

constant-torque motor

.....Output current value is used to

perform integration processing.

..... Perform integration processing

using output current of 0A.

.....Electronic the rmal relay functi on

is not activated (cumulative value clear)

REMARKS

•When run ning tw o mot or s wit h one i nv ert er, you can set t he elect r onic th erm al re lay f un ctio n

of each inverter.

Set this parameter correctly according to the motor used. Incorrect setting may cause the motor to overheat and burn.

CAUTION

Page 85

Explanation of functions (parameters)

FUNCTIONS

Output frequency (Hz)

Time

DC injection brake voltage

"Operation frequency"

Pr.10

Pr.12

"Operation voltage"

Pr.11 "Operation time"

2.3.7 DC injection brake (Pr. 10 , Pr. 11 , Pr. 12 )

By setting the DC injection brake voltage (torque), operation time and operation starting frequency , the stopping accuracy of positioning operation, etc. or the timing of operating the DC injection brake to stop the motor can be adjusted according to the load.

Parameter Name

* The factory setting varies according to the inverter capacity. (Refer to the following table for details.)

•Use Pr. 10 to set the frequency at which the DC injection brake operation is started.

•Use Pr. 11 to set the period during when the brake is operated.

•Use Pr. 12 to set the percentage of the power supply voltage.

•Change the Pr. 12 setting to 4% when using the inverter-dedicated (constant-torque

motor). (If the Pr. 12 value remains unchanged from the factory setting and Pr. 71 is changed to the setting for use of the constant-torque motor, the Pr. 12 setting is automatically changed to 4%.)

Factory

Setting

DC injection brake

operation frequency DC injection brake

operation time

12 DC injection brake voltage 6% 0 to 15%

3Hz 0 to 120Hz

0.5s 0 to 10s

Setting

Range

Setting is enabled w hen Pr. 30 = "1". (When Pr. 11 is set to "0s" or Pr. 12 is set to "0%", DC injection brake is not operated.)

CAUTION

Install a mechanical brake. No holding torque is provided.

Remarks

Page 86

Explanation of functions (parameters)

2.3.8 Starting frequency (Pr. 13 )

The starting frequency at which the start signal is turned on can be set in the range 0 to 60Hz.

Parameter Name

13 Starting frequency 0.5Hz 0 to 60Hz Setting is enabled when Pr. 30 = "1".

CAUTION

The inverter will not start if the frequency setting signal is less than the value set in Pr. 13 "starting frequency". For example, when 5Hz is set in Pr. 13, the motor will not start running until the frequency setting signal reaches 5Hz.

Output frequency

Foward rotation

Factory Setting

(Hz)

Setting range

Pr.13

Setting

Range

Frequency setting signal (V)

Remarks

Time

CAUTION

Note that when Pr. 13 is set to any value lower than Pr. 2 "minimum frequency", simply turning on the start signal will run the motor at the preset frequency even if the command frequency is not input.

♦Related parameters♦

• Minimum frequency setting ⇒ Pr. 2 "minimum frequency" (refer to page 68)

Page 87

Explanation of functions (parameters)

FUNCTIONS

(Factory setting)

2.3.9 Load pattern selection (Pr. 14 )

You can select the optimum output characteristic (V/F characteristic) for the application and load characteristics.

Pr.14=0

For constant-torque loads (e.g. conveyor, cart)

100%

Output

voltage

Base frequency

Output frequency (Hz)

Parameter Name

Load pattern

selection

Pr.14=1

For variable-torque loads (Fan, pump)

100%

Output

voltage

Base frequency

Output frequency (Hz)

Factory

Setting

1 0, 1, 2, 3

100%

Pr.0 Pr.46

Setting

Range

Pr.14=2

For lift

Forward rotation

Output

voltage

Reverse rotation

Base frequency

Output frequency (Hz)

Boost for forward rotation ...Pr. 0 (Pr.46) setting

Boost for reverse rotation ...0%

100%

Pr.0 Pr.46

Remarks

0: For consta nt-torque loads 1: For variable-tor que loads 2: For vertical lift loads 3: For vertical lift loads

Pr.14=3

For lift

Reverse rotation

Output

voltage

Forward rotation

Base frequency

Output frequency (Hz)

Boost for forward rotation ...0%

Boost for reverse rotation ...Pr. 0 (Pr.46) setting

Setting is enabled when Pr. 30 = "1".

CAUTION

1. When automatic torque boost control is selected, this parameter setting is ignored.

2. Pr. 46 "second torque boost" is made valid when the RT signal turns on. The RT signal acts as the second function selection signal and makes the other second functions valid.

♦Related parameters♦

•

Automatic torque boost ⇒ Pr. 98 "automati c torque boost selection (mot or capacity)"

(refer to page 125)

•Boost setting ⇒ Pr. 0 "torque boost", Pr. 46 "second torque boost" (refer to page 67)

•Assignment of RT signal to terminal when second torque boost is used

⇒ Pr. 60 to Pr. 63 (input terminal function selection) (refer to page 102)

Page 88

Explanation of functions (parameters)

Output frequency (Hz)

Pr.20

Forward

rotation

Pr.16

Jog frequency setting range

Pr.15

JOG signal

STF signal

2.3.10 Jog operation (Pr.15 , Pr.16 )

To start/stop jog operation in the external operation mode, choose the jog operation function in input terminal function selection, turn on the jog signal, and turn on/off the start signal (STF , STR). You can choose the jog operation mode from the parameter unit (FRPU04) and perform jog operation

using the or .

(Can be read as the basic parameters when the FR-PU04 is connected.)

Set the frequency and acceleration/deceleration time for jog operation.

Parameter Name Factory Setting Setting Range Remarks

15 Jog fr equency 5Hz 0 to 120Hz 16

CAUTION

•In S-shaped acceleration/deceleration pattern A, the acceleration/deceleration time is the period of time required to reach Pr. 3 "base frequency", not Pr. 20 "acceleration/deceleration reference frequency".

•The acceleration time and deceleration time cannot be set separately for jog operation.

•The Pr. 15 "Jog frequency" value should be equal to or higher than the Pr. 13 "starting frequency" setting.

•Assign the jog signal using any of Pr. 60 to Pr. 63 (input terminal function selection).

FWD REV

Jog accelera tio n/ deceleration time

0.5s 0 to 999s

Setting is enabled when Pr. 30 = "1".

♦Related parameters♦

Assignment of jog signal to terminal ⇒ Pr. 60 to Pr. 63 (input terminal function selection)

•

(refer to page 102)

•Acceleration/deceleration pattern S-shaped acceleration/deceleration A

⇒ Pr. 29 "acceleration/deceleration pattern" (refer to page 83)

2.3.11 RUN key rotation direction selection (Pr.17 )

Used to choose the direction of rot ati on by opera t in g the key of the operation panel.

Parameter Name

RUN

RUN key rotation direction selection

Refer to (page 69) Refer to , (page 71)

Factory

Setting

00, 1

Setting

Range

RUN

Remarks

0: Forward rotation 1: Reverse rotation

Setting is enabled when Pr. 30 = "1".

Page 89

FUNCTIONS

Explanation of functions (parameters)

2.3.12 Stall prevention function and current limit function (Pr. 21 )

You can make setting to prevent stall caused by overcurrent and/or to prevent the inverter from resulting in an overcurrent trip (to disable high-response current restriction that limits the current) when an excessive current flows due to sudden load fluctuation or ON-OFF on the output side of a running inverter.

• Stall prevention If the current exceeds the stall prevention operation level (Pr.22), the output frequency of the inverter is automatically varied to reduce the current.

• High response current limit If the current exceeds the limit value, the output of the inverter is shut off to prevent an overcurrent.

Parameter Name

Stall prevention

function selection

Stall Prevention

High Response Current Limit

Pr. 21 Setting

* When "Operation not continued for OL signal

output" is selected, the "OLT" alarm code (stopped by stall prevention) is displayed and operation sto p ped.

(Alarm stop display " ")

Activated

: Not

activated

016 117 218 319 420 521 622 723 824

925 10 26 11 27 12 28 13 29 14 30 15 31

Operation Selection

Activated

: Not

activated

speed

Constant

Acceleration

Factory

Setting

0 0 to 31, 100

OL Signal Output

: Operation continued

: Operation not continued (*)

Deceleration

Setting

Range

Pr. 21 Setting

100

Setting is enabled when Pr. 30 = "1".

Stall Prevention

High Response Current Limit

Activated

:Not

activated

Driving

rative

Regene

Operation Selection

Activated

:Not

activated

Acceleration

Remarks

speed

Constant

OL Signal Output

: Operation continued

: Operation not continued(*)

Deceleration

Page 90

Explanation of functions (parameters)

CAUTION

•If the load is heavy, the lift is predetermined, or the acceleration/deceleration time is short, the stall prevention may be activated and the motor not stopped in the preset acceleration/deceleration time. Therefore, set optimum values to the Pr. 21 and stall prevention operation level.

•When the high response current limit has been set in Pr. 21 (factory setting), torque will not be provided at the Pr. 22 setting of 170% or higher. At this time, make setting so that the high response current limit is not activated.

•In vertical lift applications, make setting so that the high response current limit is not activated. Torque may not be produced, causing a drop due to gravity.

CAUTION

Always perform test operation. Stall prevention operation performed during acceleration may increase the acceleration time. Stall prevention operation performed during constant speed may cause sudden speed changes. Stall prevention operation performed during deceleration may increase the deceleration time, increasing the deceleration distance.

Page 91

Explanation of functions (parameters)

FUNCTIONS

120Hz

Pr.22

Pr.28

Pr.23

Stall preventi on

operation level (%)

Output frequency (Hz)

Reduction ratio

compensation factor (%)

="- - -"Pr.23

When

Setting example

(Pr.22= Pr.23=100%, Pr.28= Hz)

80100120

Stall prevention

operation level (%)

Output frequency (Hz)

90 75

112.5

150

150%,

2.3.13 Stall prevention (Pr. 22 , Pr. 23 , Pr. 28 )

Set the output current level (% value to the inverter rated current) at which the output frequency will be adjusted to prevent the inverter from stopping due to overcurrent etc.

During high-speed operation above the rated motor frequency, acceleration may not be made because the motor current does not increase. To improve the operating characteristics of the motor in this case, the stall prevention level can be reduced in the high frequency region. This function is effective for performing operation up to the high speed range on a centrifugal separator etc. Normally, set 60Hz in Pr. 28 "stall prevention operation reduction starting frequency" and 100% in Pr. 23.

Parameter Name

Stall prevention operation

level Stall prevention operation

level compensation factor at double speed

Stall prevention operation

reduction starting frequency

Factory

Setting

150% 0 to 200% 

- - -

60Hz 0 to 120Hz

Setting

Range

0 to 200%,

- - -

- - -: Pr. 22 equally



Remarks

Setting is enabled when Pr. 30 = "1".

•Generally, set 150% (factory setting) in Pr. 22 "stall prevention operation level". Setting "0" in Pr. 22 disables stall prevention operation.

•To reduce the stall prevention operation level in the high frequency range, set the reduction starting frequency in Pr. 28 "stall prevention operation reduction starting frequency" and the reduction ratio compensation factor in Pr. 23. Formula for stall prevention operation level

Stall prevention operation level (%) = A + B ×[

where, A =

•By setting "- - -" (factory setting) in Pr. 23, the stall prevention operation level is constant at the Pr. 22 setting up to 120Hz.

Pr. 28 (Hz)

output frequency (Hz) 120Hz

× Pr. 22 (%)

, B =

Pr. 28 (Hz)

Pr. 22-A Pr. 22-B 100

]×[

Pr. 23-100

× Pr. 22 (%)

]

Page 92

Explanation of functions (parameters)

REMARKS

When the high response current limit is set in Pr. 21 "stall prevention function selection" (factory setting), do not set any value above 17 0% in Pr. 22. The torque w ill not be devel oped by doing so. If the Pr. 22 value is set to higher than 170%, make setting in Pr. 21 to disable the high response curren t limit. In vertical lift applicat ions, make setting so the high response current limit is not ac tivated. Torque may not be produced , ca us in g a dr op due to gravity.

CAUTION

Do not set a small value as the stall prevention operation current. Otherwise, torque generated will reduce. Test operation must be performed. Stall prevention operation during acceleration may increase the acceleration time. Stall prevention operation during constant speed may change the speed suddenly. Stall prevention operation during deceleration may increase the deceleration time, increasing the deceleration distance.

to Refer to to (page 70)

Page 93

Explanation of functions (parameters)

FUNCTIONS

2.3.14 Acceleration/deceleration pattern (Pr. 29 )

Set the acceleration/deceleration pattern.

Set value 0

[Linear acceleration/deceleration]

Output

frequency (Hz)

Parameter Name

Acceleration/

deceleration pattern

Pr. 29

Setting

Function Description

Linear acceleration/ deceleration

S-pattern acceleration/ deceleration A (*)

S-pattern acceleration/ deceleration B

Time

Set value 1

[S-pattern acceleration/deceleratio n A]

Output

frequency (Hz)

Factory

Setting

0 0, 1, 2 Setting is enabled when Pr. 30 = "1".

Acceleration is made to the set frequency linearly. (Factory setting)

For machine tool spindle applications, etc. Used when acceler at io n/ de cel er at i on must be made in a short time to a high-speed re gi on of no t low er than the base frequency. Acceleration/deceleration is made in a pattern where fb (base frequency) acts as the inflection point of a n S shape, and you can set the acceleration/deceleration time which matches the motor torque reduction in th e constantoutput operation regi on of not lower than the base frequency.

For prevention of load shifting in conveyor and othe r applicat ions . Sin ce accel era tion /dec el erat ion is a lway s ma de i n an S shape from f2 (current frequency) to f1 (target frequency), this function eases shock produced at acceleration/ deceleration and is effective for load collapse prevention , e tc .

Time

Setting

Range

[S-pattern acceleration/decelera tion B]

Output

frequency (Hz)

Set value 2

Time

Remarks

CAUTION

* As th e acceleration/deceleration time, set the time taken to reach the Pr. 3

"base frequency" value, not the Pr. 20 "acceleration/deceleration reference frequency" value.

♦Related parameters♦

Base frequency (acceleration/deceleration time setting) setting ⇒ Pr. 3 "base frequency"

•

(refer to page 69)

• Pr. 20 "acceleration / deceleration reference frequency" ⇒ refer to page 71

• For setting of "1" (S-pattern acceleration/deceleration A)

⇒

Pr. 44 "second acceleration/deceleration time", Pr. 45 "second deceleration time" (refer to

page 71)

Page 94

Explanation of functions (parameters)

2.3.15 Extended function display selection (Pr. 30 )

Used to display the extended function parameters.

Refer to page 52 for the extended function parameter list. Refer to the instruction manual (basic) for the parameter setting method.

Parameter Name

Extended function

display selection

Factory

Setting

00, 1

Setting

Range

Remarks

0: Without display, 1: With display

2.3.16 Frequency jump (Pr. 31 to Pr. 36 )

When it is desired to avoid resonance attributable to the natural frequency of a mechanical system, these

Pr.36 Pr.35

parameters allow resonant frequencies to be jumped. Up to three areas may be set,

Pr.34 Pr.33

with the jump frequencies set to either the top or bottom point of each area. The value set to 1A, 2A or 3A

Running frequency (Hz)

Pr.32 Pr.31

is a jump point and operation is performed at this frequency.

Parameter Name

31 Frequency jump 1A --- 0 to 120Hz,--32 Frequency jump 1B --- 0 to 120Hz,--33 Frequency jump 2A --- 0 to 120Hz,--34 Frequency jump 2B --- 0 to 120Hz,--35 Frequency jump 3A --- 0 to 120Hz,--36 Frequency jump 3B --- 0 to 120Hz,---

Factory Setting

Setting Range Remarks

Frequency jump

• - - -: Function invalid

•Setting is enabled whe n Pr. 30 = "1"

•To fix the frequency at 30Hz between Pr . 33 and Pr . 34 (30Hz and 35Hz), set 30Hz in Pr. 33 and 35Hz in Pr . 34.

•To jump to 35Hz between 30 and 35Hz, set 35Hz in Pr. 33 and 30Hz in Pr. 34.

CAUTION

During acceleration/deceleration, the running f requency within the set area is valid.

REMARKS

Write disable error " " occurs if the frequency jump setting ranges ov erlap.

Pr.34:35Hz Pr.33:30Hz

Pr.33:35Hz Pr.34:30Hz

Page 95

Explanation of functions (parameters)

FUNCTIONS

2.3.17 Speed display (Pr. 37 )

You can change the output frequency indication or set frequency of the operation panel and parameter unit (FR-PU04) to the motor speed or machine speed.

Parameter Name

37 Speed display 0 0, 0.1 to 9 99

Factory Setting

Setting

Range

0:Output

frequency

Remarks

Setting is enabled when Pr. 30 = "1".

• To display the machine speed, set in Pr. 37 the machine speed for 60Hz operation.

CAUTION

•The motor speed is converted from the output frequency and does not match the actual speed.

•When you want to change the monitor (PU main display) of the operation panel, refer to Pr. 52 "operation panel display data selection" and communication parameter n16 "PU main display screen data selection".

•Since the operation panel indication is 3 digits, make a setting so that the monitor value does not exceed "999". If the Pr. 1 value is higher than 60Hz and Pr. 1 value × Pr. 37 value > 60Hz × 999

(write error) occurs when Pr. 1 or Pr. 37 is written.

REMARKS

When the speed is set in Pr. 37 (Pr. 37 ≠ 0), the speed i s monitored and displaye d in the monitor/frequency setting mode. At this time, set ting can be made in the min imum setting (display) inc rements of 0.01r/min. Due to the limitations on the resolution of the set frequency, the indication in the second decimal place may differ from the setting.

CAUTION

Make sure that the running speed setting is correct. Otherwise, the motor might run at extremely high speed, damaging the machine.

♦Related parameters♦

•

To choose running speed monitor display ⇒

• FR-PU04 display switching ⇒ Communication parameter n16 "PU main display screen data

selection" (refer to page 157)

Pr. 52 "operation panel display data selection"

(refer to page 94)

Page 96

Explanation of functions (parameters)

2.3.18 Biases and gains of the frequency setting voltage (current) (Pr . 38 , Pr. 39 , C2 to C7 )

You can set the magnitude (slope) of the output frequency as desired in relation to the external frequency setting signal (0 to 5V, 0 to 10V or 4 to 20mADC). The "bias" and "gain" functions are used to adjust the relationship between the input signal entered from outside the inverter to set the output frequency, e.g. 0 to 5V, 0 to 10V or 4 to 20mADC, and the output frequency.

60Hz 60Hz

( Pr.38 )

Output

frequency (Hz)

0Hz( )

Parameter Name Factory Se tting

C2 (902) *2 C3 (902) *2 Frequency setting vo ltage bias 0% *1 0 to 30 0%

C4 (903) *2 Frequency setting voltage gain 96% *1 0 to 300% C5 (904) *2 C6 (904) *2 Frequency setting current bias 20% *1 0 to 300%

C7 (905) *2 Frequenc y setting current gain 100% *1 0 to 300%

*1.Factory settings may differ because of calibration parameters. *2.The parameter number in parentheses is the one for use with the parameter unit (FR-PU04).

(0% C3 *1)

Frequency setting voltage signal

Frequency setting voltage gain

frequency Frequency sett ing current gain

frequency Frequency setting voltage bias

frequency

Frequency sett ing current bias frequency

Factory setting

5V or 10V

(100% C4 *1)

(Across terminals 2-5)

Pr.73

( Pr.39 )

Output

frequency (Hz)

0Hz( )

(20% C6 *1)

Frequency setting current signal

60Hz 1 to 120Hz

0Hz 0 to 60Hz

4mA

Setting

Range

Factory setting

(Across terminals 4-5)

20mA (100% C7 *1)

Remarks

Setting is enabled when Pr. 30 = "1".

POINT

•Bias setting for 0-5VDC (0-10VDC) input Use calibration parameters C2, C3 for setting.

•Gain setting for 0-5VDC (0-10VDC) input Use Pr. 38, calibration parameter C4 for setting.

•Bias setting for 4-20mADC input Use calibration parameters C5, C6 for setting.

•Gain setting for 4-20mADC input Use Pr. 39, calibration parameter C7 for setting.

(For 4 to 20mADC input, set "4" in any of Pr. 60 to Pr. 63 (input terminal function selection) and assign AU (current input selection) to any of terminals RH, RM, RL and STR, and turn on the AU signal.)

Page 97

Explanation of functions (parameters)

FUNCTIONS

Confirm the RUN indication and operation mode indication. The inverter must be at a stop. The inverter must be in the PU operation mode. (Press the .)

MODE

RUN

EXT

Press the to choose the parameter setting mode.

The parameter number read previously appears.

DisplayOperation

SET

Pressing the shows the currently set value.

SET

Turn the until the parameter number 38 "frequency setting voltage gain frequency" appears. Pr. 30 must be set to "1". (For the Pr. 30 setting method, refer to the instruction manual (basic).)

Turn the to change the set value to .

6. Press the to set the value.

SET

Flicker ... Parameter setting complet e !!

SET

By turning the , you can read another parameter. Press the to show the setting again. Press the twice to show the next parameter.

"50.0" (50Hz)

(60Hz)

(1) How to change the highest frequency (2) Adjusting the deviation of the highest frequency from the Pr. 38 (Pr. 39) setting.

(2)-1) Make adjustment with a voltage applied directly across terminals 2-5 (with a

current flowing across terminals 4-5)

(2)-2) Make adjustment at any point without a voltage applied across terminals 2-5

(without a current flowing across terminals 4-5)

Changing example When you want to us e the 0 to 5VDC input frequency setting

potentiometer to change the 5V frequency from 60Hz(factory setting) to 50Hz

POINT

•Pr. 38 is an extended function parameter. Pr. 30 must be set to "1".

•Change Pr. 38 "frequency setting voltage gain frequency" to 50Hz.

(1) How to change the highest frequency

The monitor/frequency setting indication cannot be changed to just 50Hz

... Why?

The calibration parameter C4 "frequency setting voltage gain" value must

be set. (Refer to next page (2).)

REMARKS

T o change the value to more than 60Hz, Pr. 1 "maximum frequency" must be set to more than 60Hz.

Page 98

Explanation of functions (parameters)

Confirm the RUN indication and operation mode indication. The inverter must be at a stop. The inverter must be in the PU operation mode. (Press the )

SET

MODE

The parameter number read previously appears.

Press the to show the analog voltage value (%).

SET

Apply a 5V voltage. (Turn the external potentiometer connected to across terminals 2-5 to the maximum (any position).)

8 9 10

Analog voltage value (%) across terminals 2-5

Press the to choose the parameter setting mode.

RUN

EXT

*The value is nearly 100 (%) in the maximum position of the potentiometer.

Turn the to show " ". Pr. 30 must be set to "1".

(For the Pr. 30 setting method, refer to the instruction manual (basic).)

EXT

Turn the until the calibration parameter C4 "frequency setting voltage gain" appears.

SET

Press the to show " ".

DisplayOperation

When adjusting Pr. 38

Flicker ... Parameter setting complete!!

*The value is nearly 100 (%) in the maximum position of the potentiometer.

SET

(Adjustment complete)

SET

Press the to set the value.

• By turning the , you can read another parameter.

SET

• Press the to return to the indica tion (step 4).

SET

• Press the twice to show the next parameter ( ).

Changing example Changing the calibration parameter C4 "frequency setting

voltage gain" value

POINT

The calibration parameter C4 is an extended function parameter. Pr . 30 must be set to "1".

(2) Adjusting a deviation of the highest frequency from the Pr . 38 (Pr . 39) setting.

(2)-1 Making adjustment with a voltage applied directly across

terminals 2-5 (with a current flowing across terminals 4-5)

CAUTION After performing operation in step 7, do not touch the until completion of calibration.

The frequency meter (indicator) connected to across terminals FM-SD do es

not indicate just 50Hz ... Why?

The calibration parameter C1 "FM terminal calibration" value must be set.

(For the setting method, refer to the instruction manual (basic).)

When write is performed, an error ( ) is displayed.

The gain and bias frequency settings are too close.

Page 99

Explanation of functions (parameters)

FUNCTIONS

Confirm the RUN indication and operation mode indication. The inverter must be at a stop. The inverter must be in the PU operation mode. (Press the )

SET

MODE

Current operation Analog voltage value (%)

Flicker ... Parameter setting complete!!

SET

*The value is 100 (%) in the maximum position of the potentiometer.

Turn the to show " ". Pr. 30 must be set to "1".

(For the Pr. 30 setting method, refer to the instruction manual (basic).)

Press the to show " ".

SET

Turn the until the calibration parameter C4 "frequency setting voltage gain" appears.

Press the to show the analog voltage value (%). (The maximum value can be displayed by merely turning the clockwise or counterclockwise in this status by one pulse's worth of turns (there is tactile feedback because of the notch type).)

SET

Turn the to the maximum value (100%) or any point.

SET

Press the to set the value.

MODE

Press the to choose the parameter setting mode.

The parameter number read previously appears.

RUN

EXT

*The value is 100 (%) in the maximum position of the potentiometer.

EXT

DisplayOperation

When adjusting Pr. 38

Turn the to read another parameter.

SET

Press the to return to the indication (step 4).

SET

Press the twice to show the next parameter ( ).

(2)-2 Making adjustment at any po int wit h a volt age not applie d across

terminals 2-5 (w ithout a curr ent flowi ng across te rminals 4-5 )

REMARKS

For the way to change the output frequency setting of the frequency setting potentiometer, refer to the instruction man ual (basic).

Page 100

Output terminal function parameters

2.3.19 Start-t ime earth (ground) fault detection selection (Pr. 40 )

Y ou can choose whether to make earth (ground) fault detection at start valid or invalid. Earth (Ground) fa ult detecti on is execut ed only right afte r th e start sig nal is in put to the inverter. Protective function will not activate if an earth fault occurs during operation.

Parameter Name

Start-time earth

(ground) faul t detection selection

Factory

Setting

Range

0:Earth (Ground) fault

00, 1

1:Earth (Ground) fault

Remarks

detection for protection is not executed.

detection for protection is executed.

Setting is enabled when Pr. 30 = "1".

CAUTION

1. If an earth (ground) fault is detected with "1" set in Pr. 40, alarm output " "

is detected and the output is shut off.

2. If the motor capacity is less than 0.1kW, earth (ground) fault protection may

not be provided.

REMARKS

When an earth (gro und) fault is detected wit h "1" set in Pr. 40, an approximate 20ms dela y occurs at every star t.

2.4 Output terminal function parameters

2.4.1 Up-to-frequency (Pr. 41 )

The ON range of the up-tofrequency signal (SU) output when the output frequency reaches the running frequency can be adjusted between 0 and ±100% of the running frequency. This parameter can be used to ensure that the running frequency has been reached to provide the operation start signal etc. for related equipment.

Parameter Name

41 Up-to-frequency 10% 0 to 100% Setting is enabled when Pr. 30 = "1".

Factory

Setting

Output signal (SU)

Start signal

Setting

Range

Output

Use Pr. 64 or Pr. 65 (output terminal function selection) to assign the terminal used for SU signal output.

CAUTION

Using Pr. 64 or Pr. 65 to change the termin al assignment may affect the other functions. Please make setting after confirming the function of each terminal. (Refer to page 104.)

♦

Related parameters♦

• Assignment of SU signal to terminal ⇒ Pr. 64 "RUN terminal function selection", Pr. 65 "A, B, C

terminal function selection" (refer to page 104)

Running frequency

frequency (Hz)

OFF

ON OFF

Adjustable range

ON OFF

Remarks

Pr.41

Time

Melco FR-S520E User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

This section is specifically about safety matters

CONTENTS

1. WIRING

1.1 Standard connection diagram and terminal specifications

1.1.1 Standard connection diagram

1.1.2 Explanation of main circuit terminals

1.2 Main circuit terminals

1.2.1 Terminal block layout

1.2.2 Cables, wiring length, and crimping terminals

1.2.3 Wiri ng instructions

1.2.4 Selection of peripheral devices

1.2.5 Leakage current and installation of earth (ground) leakage circuit breaker

1.2.6 Power-off and magnetic contactor (MC)

1.2.7 Regarding the installation of the power factor improving reactor

1.2.8 Regarding noise and the installation of a noise filter

1.2.9 Earthing (Grounding) precautions

1.2.10 Power supply harmonics

1.2.11 Harmonic suppression guideline

1.2.12 Inverter-driven 400V class motor

1.3 How to use the control circuit terminals

1.3.1 Terminal block layout

1.3.2 Wiri ng instructions

1.3.3 Changing the control logic

1.4 Input terminals

1.4.1 Run (start) and stop (STF, STR, STOP)

1.4.2 Connection of frequency setting potentiometer and output frequency meter (10, 2, 5, 4, AU)

1.4.3 E xternal frequency selection (REX, RH, RM, RL)

1.4.4 Indicator connection and adjustment (FM)

1.4.5 Cont rol circuit common terminals (SD, 5, SE)

1.4.6 Signal inputs by contactless switches

1.5 How to use the input signals (assigned terminals RL, RM, RH, STR)

1.5.2 Second function selection (RT signal): Pr . 60 to P r. 63 setting "3"

1.5.3 Current input selection "AU signal": Pr. 60 to Pr. 63 setting "4"

1.5.5 Output shut-off (MRS signal): Pr. 60 to Pr. 63 setting "6"

1.5.6 External thermal relay input: Pr. 60 to Pr. 63 setting "7"

1.5.7 J og operation (JOG signal): Pr. 60 to Pr. 63 setting "9"

1.5.8 Reset signal: Pr. 60 to Pr. 63 setting "10"

1.6 Connection to the Stand-Alone Option

1.6.1 Connection of the dedicated external brake resistor (option) (FR-S520E-0.4K to 3.7K only)

1.6.2 Connection of the brake unit (BU type)

1.6.3 Conne ction of the high power factor converter (FR-HC)

1.6.4 Connection of the power regeneration common converter (FR-CV)

1.7 Handling of the RS-485 connector

1.7.1 Connection of the parameter unit (FR-PU04)

1.7.2 Wiring of RS-485 communication

1.8 Design information

2. FUNCTIONS

2.1 Function (Parameter) list

2.2 List of parameters classified by purpose of use

2.3 Explanation of functions (parameters)

2.3.1 Torque boost (Pr. 0 , Pr. 46 )

2.3.2 Maximum and minimum frequency (Pr. 1 , Pr. 2 )

2.3.3 Base frequency, base frequency voltage (Pr.3 , Pr.19 , Pr.47 )

2.3.4 Multi-speed operation (Pr. 4 , Pr. 5 , Pr. 6 , Pr. 24 to Pr. 27 , Pr. 80 to Pr. 87 )

2.3.5 Acceleration/deceleration time (Pr. 7 , Pr. 8 , Pr. 20 , Pr. 44 , Pr. 45 )

Selection and protection of a motor (Pr. 9 , Pr . 71 , H7 )

2.3.7 DC injection brake (Pr. 10 , Pr. 11 , Pr. 12 )

2.3.8 Starting frequency (Pr. 13 )

2.3.9 Load pattern selection (Pr. 14 )

2.3.10 Jog operation (Pr.15 , Pr.16 )

2.3.11 RUN key rotation direction selection (Pr.17 )

2.3.12 Stall prevention function and current limit function (Pr. 21 )

2.3.13 Stall prevention (Pr. 22 , Pr. 23 , Pr. 28 )

2.3.14 Acceleration/deceleration pattern (Pr. 29 )

2.3.15 Extended function display selection (Pr. 30 )

2.3.16 Frequency jump (Pr. 31 to Pr. 36 )

2.3.17 Speed display (Pr. 37 )

2.3.18 Biases and gains of the frequency setting voltage (current) (Pr . 38 , Pr. 39 , C2 to C7 )

2.3.19 Start-t ime earth (ground) fault detection selection (Pr. 40 )

2.4 Output terminal function parameters

2.4.1 Up-to-frequency (Pr. 41 )