Toshiba TOSVERT VF-FS1 Series User manual

For further information, please contact your nearest Toshiba Liaison Representative or International Operations - Producer Goods.
The data given in this manual are subject to change without notice.
2009-11
TOSHIBA
TOSHIBA INDUSTRIAL PRODUCTS
SALES CORPORATION
International Operations
9-11, Nihonbashi-honcho 4-chome,
Chuo-ku, Tokyo 103-0023, Japan
TEL: [phone]
FAX: [phone]
T OSHIBA INTERNATIONAL CORPORATION PTY., LTD
2 Morton Street Parramatta, NSW2150, Australia
TEL: [phone]
FAX: [phone]
TOSHIBA INFORMATION, INDUSTRIAL AND POWER
SYSTEMS TAIWAN CORP.
6F, No66, Sec1 Shin Sheng N.RD, Taipei, Taiwan
TEL: [phone]
FAX: [phone]
TOSHIBA INTERNATIONAL CORPORATION
13131 West Little York RD., Houston,
TX 77041, U.S.A
TEL: [phone]
FAX: [phone]
TOSHIBA ASIA PACIFIC PTE., LTD
152 Beach Rd., #16-00 Gateway East,
Singapore 189721
TEL: [phone]
FAX: [phone]
TOSHIBA CHINA CO., LTD
HSBC Tower, 1000 Lujiazui Ring Road,
Pudong New Area, Shanghai
200120, The People's Republic of China
TEL: [phone]
FAX: [phone]
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E6581381ԙ
Read first
I
Safety
precautions
Introduction
Contents
Connection
Operations
Basic VF-FS1
operations
Basic
parameters
Extended
parameters
Applied
operation
Monitoring the
operation status
Measures
to satisfy the
standards
Peripheral
devices
Table of
parameters
and data
Specifications
Before making
a service call
Inspection and
maintenance
Warranty
Disposal of the
inverter
NOTICE
1.Make sure that this instruction manual is delivered to the
end user of the inverter unit.
2.Read this manual before installing or operating the inverter
unit, and store it in a safe place for reference.
Instruction Manual
TOSVERTTM VF-FS1
3-phase 200V class 0.4 VQ30kW
3-phase 400V class 0.4 VQ75kW
2009 Ver. 118/119
Industrial Inverter
For 3-phase induction motors
Instruction ManualIndustrial Inverter TOSVERT VF-FS1

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I
I. Safety precautions
The items described in these instructions and on the inverter itself are very important so that you can use the
inverter safely, prevent injury to yourself and other people around you as well as to prevent damage to property in
the area. Thoroughly familiarize yourself with the symbols and indications shown below and then continue to read
the manual. Make sure that you observe all warnings given.
Explanation of markings
Marking Meaning of marking
Warning
Indicates that errors in operation may lead to death or serious injury.
Caution
Indicates that errors in operation may lead to injury (*1) to people or that these errors may
cause damage to physical property. (*2)
(*1) Such things as injury, burns or shock that will not require hospitalization or long periods of outpatient
treatment.
(*2) Physical property damage refers to wide-ranging damage to assets and materials.
Meanings of symbols
Marking Meaning of marking
Indicates prohibition (Don't do it).
What is prohibited will be described in or near the symbol in either text or picture form.
Indicates something mandatory (must be done).
What is mandatory will be described in or near the symbol in either text or picture form.
Indicates danger or warning.
What is dangerous, or what the wiring should be applied be applied to will described in or near the symbol
in either text or picture form.
QLimits in purpose
This inverter is used for controlling speeds of three-phase induction motors in general industrial use.
Safety precautions
The inverter cannot be used in any device that would present danger to the human body or from which
malfunction or error in operation would present a direct threat to human life (nuclear power control
device, aviation and space flight control device, traffic device, life support or operation system, safety
device, etc.). If the inverter is to be used for any special purpose, first get in touch with the supplier.
This product was manufactured under the strictest quality controls but if it is to be used in critical
equipment, for example, equipment in which errors in malfunctioning signal output system would cause
a major accident, safety devices must be installed on the equipment.
Do not use the inverter for loads other than those of properly applied three-phase induction motors in
general industrial use. (Use in other than properly applied three-phase induction motors may cause an
accident.)

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I
QGeneral Operation
Warning See item
Disassembly
prohibited
•Never disassemble, modify or repair.
This can result in electric shock, fire and injury. For repairs, call your sales distributor.
2.
Prohibited
•Never remove the front cover when power is on or open door if enclosed in a cabinet.
The unit contains many high voltage parts and contact with them will result in electric shock.
•Don't stick your fingers into openings such as cable wiring hole and cooling fan covers.
This can result in electric shock or other injury.
•Don't place or insert any kind of object into the inverter (electrical wire cuttings, rods, wires etc.).
This can result in electric shock or fire.
•Do not allow water or any other fluid to come in contact with the inverter.
This can result in electric shock or fire.
2.1
2.
2.
2.
Mandatory
•Turn power on only after attaching the front cover or closing door if enclosed in a cabinet.
If power is turned on without the front cover attached or closing door if enclosed in a
cabinet, this can result in electric shock or other injury.
•If the inverter begins to emit smoke or an unusual odor, or unusual sounds, immediately
turn power off.
If the equipment is continued in operation in such a state, the result may be fire. Call your
local sales agency for repairs.
•Always turn power off if the inverter is not used for long periods of time since there is a
possibility of malfunction caused by leaks, dust and other material. If power is left on with
the inverter in that state, it may result in fire.
2.1
3.
3.
Caution See item
Prohibited
contact
•Do not touch heat radiating fins or discharge resistors.
These device are hot, and you'll get burned if you touch them.
3.

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I
QTransportation & installation
Warning See item
Prohibited
•Do not install or operate the inverter if it is damaged or any component is missing.
This can result in electric shock or fire. Please consult your local sales agency for repairs.
Call your local sales agency for repairs.
•Do not place any inflammable objects nearby.
If a flame is emitted due to malfunction, it may result in a fire.
•Do not install in any location where the inverter could come into contact with water or
other fluids.
This can result in electric shock or fire.
1.4.4
1.4.4
2.
Mandatory
•Must be used in the environmental conditions prescribed in the instruction manual.
Use under any other conditions may result in malfunction.
•Mount the inverter on a metal plate.
The rear panel gets very hot. Do not install in an inflammable object, this can result in fire.
•Do not operate with the front panel cover removed. This can result in electric shock.
Failure to do so can lead to risk of electric shock and can result in death or serious injury.
•An emergency stop device must be installed that fits with system specifications (e.g. shut
off input power then engage mechanical brake). Operation cannot be stopped immediately
by the inverter alone, thus risking an accident or injury.
•All options used must be those specified by Toshiba.
The use of any other option may result in an accident.
1.4.4
1.4.4
1.4.4
1.4.4
1.4.4
Caution See item
Prohibited
•When transporting or carrying, do not hold by the front panel covers.
The covers may come off and the unit will drop out resulting in injury.
•Do not install in any area where the unit would be subject to large amounts of vibration.
That could result in the unit falling, resulting in injury.
2.
1.4.4
Mandatory
•The main unit must be installed on a base that can bear the unit's weight.
If the unit is installed on a base that cannot withstand that weight, the unit may fall
resulting in injury.
•If braking is necessary (to hold motor shaft), install a mechanical brake.
The brake on the inverter will not function as a mechanical hold, and if used for that
purpose, injury may result.
1.4.4
1.4.4
QWiring
Warning See item
Prohibited
•Do not connect input power to the output (motor side) terminals (U/T1,V/T2,W/T3).
That will destroy the inverter and may result in fire.
•Do not connect resistors to the DC terminals (between PA/+ and PC/-).
That may cause a fire.
•Within ten minutes after turning off input power, do not touch wires of devices (MCCB)
connected to the input side of the inverter.
That could result in electric shock.
2.2
2.2
2.2

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I
Warning See item
Mandatory
•Electrical installation work must be done by a qualified expert.
Connection of input power by someone who does not have that expert knowledge may
result in fire or electric shock.
•Connect output terminals (motor side) correctly.
If the phase sequence is incorrect, the motor will operate in reverse and that may result in
injury.
•Wiring must be done after installation.
If wiring is done prior to installation that may result in injury or electric shock
•The following steps must be performed before wiring.
(1) Turn off all input power.
(2) Wait at least ten minutes and check to make sure that the charge lamp is no longer lit.
(3) Use a tester that can measure DC voltage (800VDC or more), and check to make sure
that the voltage to the DC main circuits (across PA/+ and PC/-) is 45V or less.
If these steps are not properly performed, the wiring will cause electric shock.
•Tighten the screws on the terminal board to specified torque.
If the screws are not tightened to the specified torque, it may lead to fire.
•Check to make sure that the input power voltage is +10%, -15% of the rated power
voltage written on the rating label (±10% when the load is 100% in continuous operation).
If the input power voltage is not +10%, -15% of the rated power voltage (±10% when the
load is 100% in continuous operation) this may result in fire.
2.1
2.1
2.1
2.1
2.1
1.4.4
Be Grounded
•Ground must be connected securely.
If the ground is not securely connected, it could lead to electric shock or fire when a
malfunction or current leak occurs.
2.1
2.2
Caution See item
Prohibited
•Do not attach equipment (such as noise filters or surge absorbers) that have built-in
capacitors to the output (motor side) terminals.
That could result in a fire.
2.1
QOperations
Warning See item
Prohibited
•Do not touch inverter terminals when electrical power is going to the inverter even if the
motor is stopped.
Touching the inverter terminals while power is connected to it may result in electric shock.
•Do not touch switches when the hands are wet and do not try to clean the inverter with a
damp cloth.
Such practices may result in electric shock.
•Do not go near the motor in alarm-stop status when the retry function is selected.
The motor may suddenly restart and that could result in injury.
Take measures for safety, e.g. attaching a cover to the motor, against accidents when the
motor unexpectedly restarts.
3.
3.
3.
Mandatory
•Turn input power on after attaching the front cover.
When installed inside a cabinet and using with the front cover removed, always close the
cabinet doors first and then turn power on. If the power is turned on with the front cover or
the cabinet doors open, it may result in electric shock.
•Make sure that operation signals are off before resetting the inverter after malfunction.
If the inverter is reset before turning off the operating signal, the motor may restart
suddenly causing injury.
3.
3.

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I
Caution See item
Prohibited
•Observe all permissible operating ranges of motors and mechanical equipment. (Refer to
the motor's instruction manual.)
Not observing these ranges may result in injury.
3.
When sequence for restart after a momentary failure is selected (inverter)
Caution See item
Mandatory
•Stand clear of motors and mechanical equipment.
If the motor stops due to a momentary power failure, the equipment will start suddenly
after power recovers. This could result in unexpected injury.
•Attach warnings about sudden restart after a momentary power failure on inverters,
motors and equipment for prevention of accidents in advance.
6.12.1
6.12.1
When retry function is selected (inverter)
Caution See item
Mandatory
•Stand clear of motors and equipment.
If the motor and equipment stop when the alarm is given, selection of the retry function will
restart them suddenly after the specified time has elapsed. This could result in unexpected
injury.
•Attach warnings about sudden restart in retry function on inverters, motors and equipment
for prevention of accidents in advance.
6.12.3
6.12.3
Maintenance and inspection
Warning See item
Prohibited
•Do not replace parts.
This could be a cause of electric shock, fire and bodily injury. To replace parts, call the
local sales agency.
14.2
Mandatory
•The equipment must be inspected every day.
If the equipment is not inspected and maintained, errors and malfunctions may not be
discovered and that could result in accidents.
•Before inspection, perform the following steps.
(1) Turn off all input power to the inverter.
(2) Wait at least ten minutes and check to make sure that the charge lamp is no longer lit.
(3) Use a tester that can measure DC voltages (800VDC or more), and check to make
sure that the voltage to the DC main circuits (across PA/+ and PC/-) is 45V or less.
If inspection is performed without performing these steps first, it could lead to electric
shock.
14.
14.

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I
Disposal
Caution See item
Mandatory
•If you throw away the inverter, have it done by a specialist in industry waste disposal(*).
If you throw away the inverter by yourself, this can result in explosion of capacitor or
produce noxious gases, resulting in injury.
(*) Persons who specialize in the processing of waste and known as "industrial waste
product collectors and transporters" or "industrial waste disposal persons. "If the
collection, transport and disposal of industrial waste is done by someone who is not
licensed for that job, it is a punishable violation of the law. (Laws in regard to cleaning
and processing of waste materials)
16.
Attach warning labels
Shown here are examples of warning labels to prevent, in advance, accidents in relation to inverters, motors and other
equipment.
Be sure to affix the caution label where it is easily visible when selecting the auto-restart function (⇒See section
6.12.1) or the retry function (⇒See section 6.12.3).
If the inverter has been programmed for restart
sequence of momentary power failure, place warning
labels in a place where they can be easily seen and
read.
(Example of warning label)
If the retry function has been selected, place warning
labels in a location where they can be easily seen and
read.
(Example of warning label)
Warning (Functions
programmed for restart)
Do not go near motors and equipment.
Motors and equipment that have stopped
temporarily after momentary power failure will
restart suddenly after recovery.
Warning (Functions
programmed for retry)
Do not go near motors and equipment.
Motors and equipment that have stopped
temporarily after an alarm will restart suddenly
after the specified time has elapsed.

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I
I
II. Introduction
Thank you for your purchase of the Toshiba "TOSVERT VF-FS1” industrial inverter.
This is the Ver.118 / Ver.119 CPU version inverter.
Please be informed that CPU version will be frequently upgraded.
QFeatures
1. Built-in noise filter
1) All models in both the 200V and 400V series have a noise filter inside.
2) Can be compliant with European CE marking standard
3) Reduces space requirements and cuts down on time and labor needed in wiring.
2. Simple operation
1) Automatic functions (history, wizard, acceleration/deceleration time, and function programming)
Just by wiring the motor to the power supply allows instant operation without the need to program
parameters.
2) The RUN/STOP button and LOC/REM button allow easy operation.
3. Superior basic performance
1) Automatic energy-saving
2) Smooth operation : Reduced rotation ripple through the use of Toshiba's unique waveform formation.
3) Built-in current surge suppression circuit : Can be safely connected even if power load is low.
4) Maximum 200Hz high frequency output : Optimum for use with high speed motors such as those in
lumber machinery and milling machines.
5) Maximum carrier frequency : 16kHz quiet operation
Toshiba's unique PWM control reduces noise at low carrier.
4. Globally compatible
1) Compatible with 200V and 400V power supplies
2) Conforms to CE marking and with UL, CSA.
3) Sink/source switching of control input.
5. Options allow use with a wide variety of applications
•Internal communications devices (LonWorks®, BACnet®, Metasys®N2, Siemens APOGEETM FLN.)
•Extension panel/Parameter writer
•EMC noise reduction filter
•Other options are common to all models
6. Extended power range
•Wide range of powers up to 75kW for this class of inverter.

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 Contents 
I Safety precautions .........................................................................................................................................................1
II Introduction ....................................................................................................................................................................7
1. Read first........................................................................................................................................................................A-1
1.1 Check product purchase ....................................................................................................................................A-1
1.2 Contents of the product......................................................................................................................................A-2
1.3 Names and functions .........................................................................................................................................A-3
1.4 Notes on the application ....................................................................................................................................A-13
2. Connection.....................................................................................................................................................................B-1
2.1 Cautions on wiring .............................................................................................................................................B-1
2.2 Standard connections ........................................................................................................................................B-2
2.3 Description of terminals .....................................................................................................................................B-5
3. Operations .....................................................................................................................................................................C-1
3.1 Simplified operation of the VF-FS1....................................................................................................................C-2
3.2 How to operate the VF-FS1 ...............................................................................................................................C-6
4. Basic VF-FS1 operations ...............................................................................................................................................D-1
4.1 Flow of status monitor mode ..............................................................................................................................D-2
4.2 How to set parameters .......................................................................................................................................D-3
5. Basic parameters ...........................................................................................................................................................E-1
5.1 Setting acceleration/deceleration time...............................................................................................................E-1
5.2 Specifying an operation mode, using parameters..............................................................................................E-4
5.3 Selection of operation mode ..............................................................................................................................E-7
5.4 Meter setting and adjustment.............................................................................................................................E-10
5.5 Standard default setting .....................................................................................................................................E-13
5.6 Forward/reverse run selection (Operation panel operation) ..............................................................................E-15
5.7 Maximum frequency ...........................................................................................................................................E-16
5.8 Upper limit and lower limit frequencies ..............................................................................................................E-16
5.9 Base frequency ..................................................................................................................................................E-17
5.10 Selecting control mode ......................................................................................................................................E-18
5.11 Manual torque boost - increasing torque boost at low speeds...........................................................................E-24
5.12 Setting the electronic thermal ............................................................................................................................E-24
5.13 Preset-speed operation (speeds in 7 steps) ......................................................................................................E-28
6. Extended parameters .....................................................................................................................................................F-1
6.1 Input/output parameters .....................................................................................................................................F-1
6.2 Input signal selection .........................................................................................................................................F-5

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6.3 Terminal function selection ................................................................................................................................ F-6
6.4 Basic parameters 2............................................................................................................................................ F-15
6.5 Frequency priority selection .............................................................................................................................. F-16
6.6 Operation frequency.......................................................................................................................................... F-24
6.7 DC braking......................................................................................................................................................... F-25
6.8 Auto-stop in case of lower-limit frequency continuous operation ...................................................................... F-26
6.9 Jump frequency-jumping resonant frequencies................................................................................................. F-28
6.10 Bumpless operation........................................................................................................................................... F-29
6.11 PWM carrier frequency...................................................................................................................................... F-30
6.12 Trip-less intensification...................................................................................................................................... F-34
6.13 Drooping control ................................................................................................................................................ F-42
6.14 Conducting PID control...................................................................................................................................... F-44
6.15 Setting motor constants ..................................................................................................................................... F-48
6.16 Acceleration/deceleration time 2 ....................................................................................................................... F-53
6.17 Protection functions........................................................................................................................................... F-57
6.18 Forced fire-speed control function..................................................................................................................... F-71
6.19 Adjustment parameters...................................................................................................................................... F-72
6.20 Operation panel parameter................................................................................................................................ F-73
6.21 Communication function (RS485)...................................................................................................................... F-82
6.22 Parameters for options ...................................................................................................................................... F-87
6.23 Permanent magnetic motors.............................................................................................................................. F-87
7. Applied operation .......................................................................................................................................................... G-1
7.1 Setting the operation frequency ........................................................................................................................ G-1
7.2 Setting the operation mode ............................................................................................................................... G-5
8. Monitoring the operation status ..................................................................................................................................... H-1
8.1 Status monitor mode.......................................................................................................................................... H-1
8.2 Display of trip information.................................................................................................................................. H-5
9. Measures to satisfy the standards................................................................................................................................. I-1
9.1 How to cope with the CE directive ..................................................................................................................... I-1
9.2 Compliance with UL Standard and CSA Standard ............................................................................................. I-5
10. Peripheral devices......................................................................................................................................................... J-1
10.1 Selection of wiring materials and devices ......................................................................................................... J-1
10.2 Installation of a magnetic contactor ................................................................................................................... J-3
10.3 Installation of an overload relay......................................................................................................................... J-4
10.4 Optional external devices .................................................................................................................................. J-5
11. Table of parameters and data........................................................................................................................................ K-1
11.1 User parameters ................................................................................................................................................ K-1
11.2 Basic parameters............................................................................................................................................... K-1
11.3 Extended parameters ........................................................................................................................................ K-4

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12. Specifications................................................................................................................................................................L-1
12.1 Models and their standard specifications...........................................................................................................L-1
12.2 Outside dimensions and mass...........................................................................................................................L-4
13. Before making a service call - Trip information and remedies .......................................................................................M-1
13.1 Trip causes/warnings and remedies ..................................................................................................................M-1
13.2 Restoring the inverter from a trip .......................................................................................................................M-5
13.3 If the motor does not run while no trip message is displayed ............................................................................M-6
13.4 How to determine the causes of other problems................................................................................................M-7
14. Inspection and maintenance ..........................................................................................................................................N-1
14.1 Regular inspection .............................................................................................................................................N-1
14.2 Periodical inspection..........................................................................................................................................N-2
14.3 Making a call for servicing .................................................................................................................................N-5
14.4 Keeping the inverter in storage..........................................................................................................................N-5
15. Warranty ........................................................................................................................................................................O-1
16. Disposal of the inverter ..................................................................................................................................................P-1

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A-1
1
1. Read first
1.1 Check product purchase
Before using the product you have purchased, check to make sure that it is exactly what you ordered.
Caution
Mandatory
Use an inverter that conforms to the specifications of power supply and three-phase induction
motor being used. If the inverter being used does not conform to those specifications, not only will
the three-phase induction motor not rotate correctly, it may also cause serious accidents through
overheating and fire.
Related output
current
Power supply
Related input current
Inverter Type
Inverter rated output
capacity
Warning label
Power supply
Motor capacity
Series name
Rating label Inverter main unit
Carton box
Name plate
Warning label
VF-FS1
3PH-200/240V-0.75kW/1HP
Instruction manual
This manual
Type indication label
EMC plate
18.5kW or less of
WP models only
Name plate
Rating label

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1
1.2 Contents of the product
Explanation of the name plate label.
Type Form
VFFS1 -4007PLE-WN -A22
Model name
TOSVERT
VF
-
FS1series
Applicable motor
capacity
004 : 0.4kW
007 : 0.75kW
015 : 1.5kW
022 : 2.2kW
037 : 4.0kW
055 : 5.5kW
075 : 7.5kW
110 : 11kW
150 : 15kW
185 :18.5kW
220 : 22kW
300 : 30kW
370 : 37kW
450 : 45kW
550 : 55kW
750 : 75kW
A
dditional functions I
None: No filter inside
M: Built-in basic filter
L: Built-in
EMI class A filter
D: Built-in
EMI class B filter
Operation panel
P: Provided
Default interface
logic*
WN : Negative
WP : Positive
Special specification code
A:is the number
Input
(
A
C
)
volta
g
e
2 : 200V to 240V
4 : 380V to 480V
A
dditional functions II
None: Standard product
E: Enclosed type
* This code represents the factory default logic setting. You can switch from one input/output logic to the other using
slide switch SW4. ⇒See section 2.3.2.
Warning: Always shut power off first then check the ratings label of inverter held in a cabinet.

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A-3
1
1.3 Names and functions
1.3.1 Outside view
[Operation panel]

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A-4
1
The front panel is unlocked when
the dot on the locking screw is on
this (upper) side.
The front panel is locked when the
dot on the locking screw is on this
(lower) side.
[Front]
Charge lamp
Front panel
Indicates that high voltage is still
present within the inverter. Do not
open the terminal board cover
while this is lit.
The front panel of the inverter or
terminal board
To avoid touching the terminal
board by mistake, be sure to close
the front panel before starting
operation.
Front panel locking screw
The inverter came with this
screw in the locked position.
So from this position, turn the
screw 90° counterclockwise to
unlock the front panel, or turn
it 90° clockwise to lock the
front panel.
The screw does not turn 360°. To
avoid damage to the screw, do
not use excessive force when
turning it.
Unlock position mark
Lock position mark
To
p
warnin
g
label Note
)
Colling fin
Communicatio Connector hole
Cnotrol cable port
Ventilation slit
Name plate
[Bottom] [Right side]
Main circuit
cable port
Note: Remove this seal and operate it at a current lower than the rated one when installing the inverter side by side with
other inverters where the ambient temperature will rise above 40°C.

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1
Example of the label
1.3.2 Power circuit and control circuit terminal boards
In case of the lug connector, cover the lug connector with insulated tube, or use the insulated lug connector.
1) Power circuit terminal board
In case of the lug connector, cover the lug connector with insulated tube, or use the insulated lug
connector.
Screw size tightening torque
M4 screw 1.3Nm 10.7lb yin
M5 screw 2.5Nm 22.3lb yin
M6 screw 4.5Nm 40.1lb yin
M8 screw 12Nm 106lb yin
M12 screw 41Nm 360lb yin
・Monitor display
The LEDs on the operation panel display the following symbols indicate operations and parameters.
LED(number)
0 1 2 3 4 5 6 7 8 9 -
0 1 2 3 4 5 6 7 8 9 -
LED(alphabet)
Aa Bb C c Dd Ee Ff Gg H h I i Jj Kk Ll
a b c w d e f g h k i } j l
Mm Nn O o Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz
m n o x p q r s t u v y

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A-6
1
VFFS1-2004 ∼2037PM
VFFS1-4004 ∼4055PL
Note: EMC plate is supplied as standard only WP model.

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A-7
1
VFFS1-2055, 2075PM
-4075, 4110PL
VFFS1-2110 ∼2185PM
-4150
∼4185PL
Note: EMC plate is supplied as standard only WP model.

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A-8
1
VFFS1-2220PM
-4220, 4300, 4370, 4450PL
Grounding capacitor
disconnecting switch
(4220, 4300PL only)
(⇒See page A-10)
(⇒See page A-10)
VFFS1-2300PM
-4550, 4750PL
A
B
Each main circuit terminal has the
structure shown in the figure below.
Connect a cable to part A if it has a
ring terminal, or to part B if it has no
terminal (bare wire).
Parts A and B accommodate different
sizes of cables, so consult the cable
size list for the size of cable
connectable to each part.
Grounding capacitor
disconnecting switch
(400V only)
(⇒See page A-10)
Note: EMC plate is supplied as option.

E6581381
A-9
1
2) Grounding capacitor disconnecting switch and taps
Caution
Mandatory
The grounding capacitor disconnecting tap is provided with a protection cover. To avoid shock hazards,
always attach the cover after connecting or disconnecting the capacitor to or from the tap.
Every three-phase 400V model has a built-in high-attenuation noise filter, which is grounded through a
capacitor.
If you want to disconnect the capacitor from the grounding line to reduce the amount of leakage current,
you can do so easily using the switch or tap. Keep in mind, however, that disconnecting the capacitor
from the grounding line causes the inverter to become non-compliant with the EMC directive. Also note
that the inverter must always be turned off before the capacitor is disconnected or reconnected.
Note: In case of three phase 400V-5.5kW or less model, if you disconnect the capacitor from ground,
set the parameter of carrier frequency  to 6kHz with motor cable length 30m or less.
5.5kW or less : Switch
7.5∼18.5kW: Tap
To connect the capacitor to ground, push this switch.
(Factory default position)
To disconnect the capacitor from ground, pull up this switch.
To disconnect the capacitor from ground, connect the lug terminal
to this tap.
To connect the capacitor to ground, connect the lug terminal to
this tap. (Factory default setting)