Toshiba Tosvert VF-A5 User manual

TOSHIBA
High-Performance Inverter
Instruction Manual
TOSVERT VF-A5
200V 0.4 ~ 90kW
400V
0.75~280kW
Toshiba Schneider Inverter Corporation
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.
© TOSHIBA Corporation 1994
All Rights Reserved.
E6580516@
Toshiba Tosvert VF-A5 user manual

E6580516
Safety Precautions .
This inverter is for driving a 3-phase motor, and must not be used for other applications.
[I) Always observe the following items to prevent electrical shock.
1. Do not touch charged parts such as the terminal block while the CHARGE lamp is lit. A charge will still
be present in the electrolytic capacitors, and therafore, touching these areas may result in an electrical
shock. Always turn inverter's input power off before wiring the motor terminals. Wait at least five
minutes after the "CHARGE" lamp has gone out, and then confirm that the capacitors have fully
discharged by using a tester, etc., that can measure high-voltage DC.
2. Do not touch or insert a rod or any other item into the
inverter while power is applied (there are high voltage areas
on the PCB), as this may lead to electrical shock or inverter
damage.
(When operating with the cover removed, charged areas will
be exposed, so always install the unit inside a panel so that
it cannot be easily touched.)
Never attempt to modify the inverter unit.
3. Ground the unit's G/E terminal and the motor. (Electric
shock may occur due to leakage currents.)
[ Il JRetry function
Control section
(When cover is removed)
1. This inverter has a "retry function" that automatically resets the unit when a fault trip occurs. Observe
the following points when this function is selected.
Even if the inverter has fault tripped, take care to not get caught in the motor or equipment. When the
"retry function" is selected, the inverter will automatically start after the designated time. (Refer to page
83.)
Take special care when an overload trip occurs, as the "retry function" may activate after a delay of up
to 5min.
[fil) Observe the following points to prevent fire.
1. Confirm the inverter's rating nameplate, and connect a 3-phase input power source within the rated
range to the R/L
1, S/L2, and T/L3 power source terminals.
If an incorrectly-rated power source is connected to the inverter, such as when a 400V power source is
connected to a 200V inverter, the inverter's internal components may explode.
2. No fuse is contained in the inverter, so install a suitable non-fuse breaker {MCCB) on the inverter's
input power source.
(Refer to Table
5-1 on page 14 for Examples of selecting equipment for wiring.)
[}/] Refer to the following chapters for other precautions.
Chapter 1 Acceptance Inspection and Precautions ·
·· ····· Page 1
Chapter 2 Installation Precautions Page 2
Chapter 4 Operation Precautions
Chapter 5 Wiring Precautions
Chapter 12 Maintenance and Inspection
Page 5
Page 9
Page 110

E6580516
Introduction
Thank you for purchasing the Toshiba High-Performance Inverter "TOSVERT VF-AS".
The "VF-AS" inverter has many various functions built in for use with a 3-phase induction motor. All
Operations of this unit are done via the easy-to-use keyboard-type operation panel. A blind function
(Refer to page
SS) that displays only those functions required for operation, and an edit function (Refer to
page 34) that automatically collects parameters that differ from their default settings are used to make
basic operation and setting easier. Advanced control technology features (sensorless vector control,
feedback control, current limit, retry, and stall prevention functions) are built in, so that the inverter will not
trip easily, and will provide unparalleled reliabilty.
Please read this manual thoroughly before use to properly understand the correct use of the outstanding
functions of the "VF-AS".
This manual should be stored by the user of the "VF-AS" for reference during maintenance and inspection.
Symbols used in this manual are as shown below. Understand them before reading this manual.
1. LED display character codes: Reter to page 131
2. To indicate a parameter display on the operation panel in this manual:
Parameter
Example I RC C : I
To indicate a panel key:
Example IENTER I key
The box c==J is not used when indicating parameter group names and parameter settings.
Note) The box
._I _ _.I is not used when displaying parameters in tables.

E6580516
Table of Contens
1. Acceptance Inspection and Precautions ·····•········•··········•·····•••••··•········ 1
2. Installation Precautions •··•········•···•······•···•·······•············•················ 2
3. External View and Component Names ··············•········•·••···········•·•·····•· 3
4. Operation Precautions ·································································· 5
5. Wiring Precautions ·····•·····················••··•··••···•·•·········•·················· 9
6. Standard Connections ·········••·•·······•··••••········•···························•·· 15
6.1 Standard Connection Example ···················································· 15
6.2 Terminal Functions ································································· 18
7. Operation and Adjustment ································•····························· 32
7 .1 Operation Panel ···································································· 32
7.2 Basic Operation ···
·: ········ ~ ······················································ 33
7.3 Operation Modes ··································································· 37
7 .3.1 Standard Monitor Mode ····················································· 37
7.3.2 Status Monitor Mode ························································ 40
7.3.3 Setting Monitor Mode ····· ··· ········ ·· ···· ·· ···· · ····· ···· ·· ····· ·· ···· ···· 41
7.3.4 JOG Run Mode .............................................................. 44
7.4 Operation Mode Selection ························································· 45
7.4.1 Operation Mode Changeover ····
··· ··· ·· .. ······· .. · .. ··········· ·· · .. ····· 45
7.4.2 Run/Stop Command [ [ nOd in [,,-.Lf1= ] ........................... 45
7.4.3 Frequency Command Source Setting Function
[ F noc1 in [,,-.Lf1= J ................................................... 45
7.4.4 Parameter Setting Function [
F'nOd in [,,-.Uc ] ................... 46
7.4.5 Standard Parameter Value Reset Function
[ 1= '=IF' in [,,- .U,'= ] ........ ··..·· .......... ··..··········....··..····· 47
7.4.6 Selection of Stopping Method from the Panel ·· ·· ··· ··· .... · ·· · ·· · ........ 48
7.4.7 Fault Reset
··· ·· ··· ·· ·· · ···· ··· ··· · ···· · ·· ············ ···· ··· · ·· · ···· ··· ·· ··· 49
8. Parameter Explanations ································································ 50
1. [,,- .F V/f settings ··························································· 50
V/f pattern CD ························································ 51
V /f pattern ® ························································ 52
Acceleration/deceleration time settings ··························· 53
Ace/Dec patterns, Ace/Dec pattern adjustment,
Low/High ····························································· 54
Blind function selection ·············································· 55
Upper limit/lower limit frequencies ·································· 56
Reverse operation disable selection ········
.. ····················· 56
- i -

E6580516
2. [,,-.F'r, Ace/dee #1 and #2 selection ············ ···· ··· ····· ············· ··· 57
Panel feedback control ··············································
58
Panel reset selection ················································ 58
Fundamental parameter switching ································· 59
3. [,,-.Sc Input terminal selections CD ········································· 60
Input terminal
selections® ··· ···· ·································· 61
Output terminal selections CD ······································· 62
Output terminal selections ® ······································· 63
Low speed, acceleration/deceleration
complete, speed reach output signals ····························· 64
Input/output terminal response time selections ···················· 65
Commercial power/INV switching
·········· ························ 66
Output terminal pulse frequency selection ························· 67
RR input special function selection ································· 67
4. [, ,- .S[ Run frequency control ··············································· 68
Start-up frequency/End frequency ································· 69
Jump frequencies ··················································· 70
PWM carrier frequency ·· · ···· ····· · ······ ······ · ······ ·· · ·· ········ 71
5. [,,-.SF Preset speed operation CD ·········································· 72
Preset speed operation ® ·········································· 73
Frequency priority selections ······································· 74
Jogging operation ··················································· 75
Frequency setting input signal characteristics ····················· 76
6. [,,-.P,- Electronic thermal protection CD ···································· 77
Electronic thermal protection ® ···································· 78
DC injection braking settings CD ··· ···· ············· ·· ········· ···· · 79
DC injection braking settings® · ·· · ·· ········ ··· ·· ······ ·· ·· ··· ·· ·· 81
Dynamic braking operation ··········································· 82
Emergency stop ····················································· 83
Retry function ························································ 83
Regeneration power ride-through control ·························· 84
Auto-restart ·························································· 84
Trip function selections ············································· 85
Output short circuit detection selection ···························· 85
Fault trip saving ······················································ 86
7.
[,,-.Pc Pattern run CD ············································· ·· ····· ··· 87
Pattern run ® ·······················································
88
- ii -

E6580516
8. [,,-.L:I:: Panel operation permission · ······ ··· ·········· ·· ·· ··· ······· ·· ·· ··· 89
Industrial application parameters selection ························ 90
Standard setting mode selection ··································· 90
Command/frequency mode selections ····························· 91
Status monitor display selections ··································· 92
Blind function selection ·············································· 92
Units settings ·························································· 93
9. [,,- .F:n Meter adjustment parameters ······································ 94
9. Device Specifications ·································································· 95
9.1 Model and Standard Specifications ···········································-·· 95
9.2 External Dimensions ······························································
99
10. Options ···························································•····················· 1 03
11. Error Displays and Troubleshooting ················•································· 105
11.1 Inverter Trip Causes and Remedies ············································· 105
11.2 Other Fault Troubleshooting ····················································· 109
12. Maintenance and Inspection ·························································· 11 o
12.1 Preventive Maintenance and Periodic Inspection ······························· 110
12.2 Component Replacement ························································ 111
13. Storage ················································································· 112
14. Warranty ··············································································· 112
Appendix
Appendix Table 1. Parameter list ·········· · ······ ······ ················ ············· 113
Appendix Table 2. List of trips ························································ 129
Appendix Figure
1. Input terminal information ······································· 130
Appendix Figure 2. Output terminal information ····································· 130
Appendix Figure 3. Character codes ······ ············· .............................. 131
Appendix Table 3. Standard default settings per inverter capacity ················· 132
Appendix Table
4. Industrial application parameters ······························· 133
Appendix Table
5. Changed settings memo ········································ 150
- iii -

E6580516
1. Acceptance Inspection and Precautions
(1) Confirm that the unit has not been damaged during shipment.
(2) Confirm that the model noted on the rating nameplate is as ordered.
(3) When storing the unit temporarily after purchase, store it in dust-free, well-ventilated location.
(4) Special care is taken during product manufacturing, packaging, and shipment. If any problems are
discovered, however, please contact your dealer immediately.
Details of rating nameplete I
._ Inverter model
~TRANSISTOR INVERTER
r=.JTYPE-FORM VFAS-2037 P
Applicable SOURCE 200-220V-50Hz FREQUENCY 0.1-80Hz ._ Rated output frequency
power source 200-230V-60Hz (0.01 -400)Hz
Capacity CAPACITY 6.5 kVA CURRENT 16.5 A - Rated output current
Rated output --- VOLTS 200-230V AC MOTOR 3.7 kW MAX. ._ Applicable motor capacity
voltage :------------------------------: ~------:
LOT NO. : ______________________________ :: ______ J
@ M6584991P '.::::J
MADE IN JAPAN
Details of model No. I
Model name
TOSVERT
VF- AS series
A: General pur-
pose high-
performance
Input voltage
2: 200V- 230V
4: 380V-460V
8: DC power source
input
(200V class output)
9: DC power source
input
(400V class output)
Model No.
Type
II! Model •I
Opt i on PCB
and special
specification
d s
lvlFIAlsl-l21ol3l7IPIYl-IAl2l2l
T I
I T
--
Standard Additional
motor
functions Option
PCB and special specification codes
capacity
E: Fully enclosed
0. 4kW : 004 F: External
0.75kW: 007 heatsink
1.5kW : 015
N:GTR7
2.2kW : 022 modification
3.7kW : 037
Y: Other
5. 5kW : 055 (nonstandard)
7.5kW : 075 None: Standard
11kW : 110
15kW : 150
18.5kW: 185 Operation
22kW
: 220 panel
30kW
: 300 P: Installed
37kW : 370
45kW
: 450 B: Not installed
ADO: Special specification code (00 are numbers)
M: 12-bit binary input PCB 4526A installed
Q : Expansion terminal block PCB 4514A installed
R: Expansion terminal block PCB 4514B installed
S : Expansion terminal block PCB 4514C installed
T : Expansion terminal block
PCB 4514D installed
J : Expansion terminal block PCB 451 SA installed
K : Expansion terminal block PCB
45158 installed
D : Expansion terminal block PCB
451 SC insta ll ed
V : RS485 communication PCB installed
W: TOSLINE-F10M communication PCB insta
ll ed
X : TOSLINE-F20 communication PCB installed
55kW : 550 UL-listed: UP, UB
75kW
: 750
90kW : 900
110kW : 110k
132kW : 132k
160kW: 160k
220kW: 220k
280kW : 280k
- 1 -

E6580516
2. Installation Precautions
This inverter is an electronic control unit. Take special care concerning the installation environment.
• Confirm that the input power is within +10% of the rated value.If the input power voltage range
tolerances are exceeded during use, the protective circuits may function or the inverter may
be
damaged.
·Avoid installation in hot and humid locations,
where condensation or freezing may occur.or
where water,dust,or metal chips may come into
contact with the inverter.
• Do not install the unit
in locations that
experience large
vibrations.
• Install in a location
free of corrosive gases
or cutting fluids, etc.
• Use the unit within an ambient temperature of
-10 to 40 ·c .
~1FlQ
g~·
o~
c:::i -1o ·c
~/// /~
u. t!iJ.I «
Because the inverter radiates
heat, when installing
in a
panel take special care
concerning ventilation and
panel space. Removal of
the cover is recommended
when using
in a panel to
ensure maximum longevity
and reliability.
• The inverter may malfunction if the
following types of devices are
installed nearby, so use proper
precautions.
·Solenoids
• Brakes -----1
• Electromagnetic
contactors
• Fluorescent lights
Install a surge killer
on the exciting coil.
• Resistors
--- Keep away from the inverter
• Ground the G/E
terminal to prevent
electrical shock and
malfunction due to
noise.
Attach the unit to a non-combustible material such as a metal panel. To
ensure adequate ventilation, maintain the following installation spaces, and
always install the unit vertically
in the longitudinal direction. When installing
multiple inverters in a row, leave a clearance of
at least 1
Ocm between each unit. This clearance
can be reduced depending on the environment
or by adding fans.
~
l:;p (For 37kW and larger units, leave a clearance of
at least 20cm above and below the inverter to
allow for fan replacement and wire bending
space.)
Contact the Engineering Department for further
details.
Inverter life depends greatly on the ambient temperature. Make sure
that the ambient temperature of the installation location dose not exceed the
maximum ambient temperature rating(40°C).
5cm
Measure the temperature at the positions shown in the diagram on the right,
and confirm that it is less than the maximum ambient temperature rating
(40 °C). (S0 °C or less when the cover is removed.)
22kW and larger units can be used up to an ambient temperature
of so ·c.
(Do not remove the cover from 22kW and larger units.)
*Always install the inverter in the longitudinal direction on a vertical surface.
- 2 -
--
5cm
Measurement
position
Measurement
position

E6580516
3. External View and Component Names
3.1 Component Explantion (I)
@ Cooling air exhaust port
@ Mounting hole (4 holes)
(!) Mounting bracket
CD Operating panel
(2) ROM interface window
(semi-transparent)
(ID Front cover warnings
@ Cover (plastic)
® Wiring access plate :
Always cut out the wiring
ports as necessary .
.1...---r-<ID Ventilation slots
® Optical cable access slot ·
for installation of optical
communication options.
® Finger clasp for
removing cover
@ Cooling fan
When using an 11 kW or larger unit,
make slits 1n tne rubber bushing
witn nippers or a knife as
shown below.
CD Operating panel: removable
'I""'"';~~~~,. Refer to section 3.3 Removal of operating panel.
~Slit
\'.:::7_ Rubber
bushing
@ Upper caution sticker:
Always remove this sticker when the ambient
temperature
is high.
<ID Ventilation slots:
A cover-up plate option is available for fully-sealed
applications .
3.2 Removal of Cover
CZ) ROM interface window: removable
Refer to section 3.3 Removal of ROM inetrface window.
@Cover
Always read the cautions @ on the front of the cover and remove
the cover when wiring .
Refer to section 3.2 Removal of cover .
If the ambient temperature of the inverter unit exceeds 40'C when
mounted in a panel, remove the cover. The unit can then be used
up to a temperature of 50'C.
1) For 7.5kW and smaller··· Place your fingers on the finger clasps for removing the cover shown in the 3.1 Component Explanation
(I) drawing. Apply force in the direction of the arrows (I), and pull the cover up in the direction of arrow
([). The cover will come off .
2) For 11-18.5kW ·· · Remove the two screws on the cover wiring inlet , and then remove the cover like the 7.5kW models.
2) For 22kW and larger . .. Wait for the "CHARGE" lamp on the cover (sheet metal) to go out. Then remove the four screws holding
the cover (six screws for 37kW and larger), and the cover will come off .
Hook structure
Fitting structures
- 3 -

3.3 Removal ofthe ROM Interface
Window and Operation Panel
Operation panel
®
Im ROM interface window
(I) Press where the word PUSH is located.
i
The top of the window will open.
i
([) Hold the top of the window, and
pull it out in the direction of
the arrow (D).
3.4 Component Explantion {B)
@ Option connector
(40-pin)
connector
(Modular 6-pin)
@ Option ROM socket
@ ROM cover
@ Option connector
(20-pin)
@ 8
- 4 -
~
(L')
E6580516
(Ill) The operation panel attachment
screw can now be seen. Turn it
in the direction of the arrow
(Ill) unit it completely
loosens.
(V) When the screw has
completely loosened, pull the
operation panal out in the direction
of the arrow (V).
® Operation panel
connector
@ Operation panel
attachment stud
® Changeover switch for
frequency setting
signal inputs
IV terminal IN changeover switch
RX terminal 1 OV/5V changeover switch
I 5
iJ
v 10
@ Flat cable
(for control terminal block)

E6580516
4. Operation Precautions
Observe the following points when using the VF-AS inverter
4.1 Cautions Regarding Motor
Comparison with com-
mercial power source
operation:
Running at low-speeds:
Adjustment of overload
protection level:
Running at speeds
exceeding 60Hz:
Load equipment lubrication
method:
Ultra-light loads and low-
inertia loads:
Measures for instability
phenomena:
The VF-A5 inverter uses a sinusoidal-wave PWM method, but the
output voltage and output current will be distorted waveforms which
closely approximate sinusoidal waveforms, instead of complete
sinusoidal waveforms. In comparison to operating with the commercial
power source, the motor temperature rise, noise and vibration will
increase slightly.
When the inverter is used in combination with a general purpose
motor and run at low speeds,
the motor's cooling effect will decrease.
Therefore, the output load must be reduced to less than the rated
load. If the motor is to be run at the rated torque even at low speeds,
use a Toshiba"VF motor" specially designed for use with inverters.
When used with a VF motor, the inverter's overload protection level
must be adjusted. (Refer to pages 77, 78 for details. )
When using this inverter with a general purpose motor, the overload
protection of the VF-A5 is performed by use of an overload detection
circuit (electronic thermal relay) that meets a general purpose motor's
reduced load characteristics. The reference current value for this
electronic thermal relay is set to the inverter's rated current value;
therefore, this may need adjustment depending on the motor.
When operating at a frequency that exceeds 60Hz, motor vibration
and noise will increase. Furthermore, this type of operation may be
limited by the motor's mechanical strength and bearing construction,
so please contact the motor manufacturer for further information.
When driving an oil-lubricated speed reduction gear or geared motor,
the lubrication may deteriorate at low-speeds, so contact the speed
reduction gear manufacturer for information on usable variable-speed
areas.
Instability phenomena, such as abnormal vibration or overcurrent
trips, may occur when operating with an ultra-light load at a load ratio
of
5% or less, or with a load having an extremely small moment of
inertia. In these cases, lower the carrier frequency. (Refer to page 71)
Instability phenomena may also occur when using the inverter with the
following types of motors or loads, so always confirm applicability
before use.
(1) Combination with motor exceeding recommended applicable motor rating.
(2) Combination with special motors such as explosion-proof motors.
(3) Combination with special loads having severe rotational
fluctuations, such as piston-type movements.
- 5 -

Braking during power off:
Loads that generate a
negative torque:
Motors with brakes:
3-phase power source
(a)
E6580516
The inverter will enter the coast-stop state when the power source is
turned off. The motor will therefore not stop immediately.
To stop the
motor immediately, install an auxiliary brake unit. Dynamic braking
units and mechanical braking units are available, so select one that
suits your specific application.
The overvoltage protection or overcurrent protection may function and
trip the inverter when used with loads that generate a negative torque.
In this case, a braking resistor that meets the load condition must be
installed.
If a motorwith a brake is directly connected to the inverter, the
voltage when the motor is started will be low, which may result
in the
brake not being released. In this case, separately wire the brake
circuit and motor main circuit.
In addition, there is a delay in the time
to when the inverter output stops if the inverter's ST to CC control
terminal connection is released, so use ofthe circuit configuration
in
Fig. 4-1 is recommended.
In Fig. (a), the brake power is turned ON and OFF via MC2 and MC3.
If a circuit configuration as shown in the drawing is not used, a bound
current may flow during braking and may cause an overcurrent trip.
The brake power can also be turned ON and OFF using the low-
speed signal LOW as shown in Fig. (b).
(Non-excited brake)
MC2
MC3
MC1
--0
3-phase power source
(b)
Fig. 4.1 Circuit configuration for motor with brake
MC2
LOW
LOW~C3
MC3
MC2
In some cases, such as in hoist applications, turning the brake ON and
OFF by using low-speed detection (LOW terminal function) may be better,
so contact your dealer for further details.
4.2 Cautions Regarding the Inverter
Inverter's overcurrent
protection: Overcurrent protection
is used as the VF-AS inverter's protection
function, and the current setting level
is set to match the largest
applicable motor. Therefore. when operating a motor that
is smaller
than the inverter capacity, the overcurrent level and electronic thermal
protection parameters must be readjusted. (Refer to pages 77, 78.)
- 6 -

Running with light loads:
Power-factor improvement
capacitors:
Use with voltage sources
other than the rated voltage:
Protection device for
lightning surges:
E6580516
Operating a large capacity motor with a light load using a small
capacity (kVA) inverter must be avoided. The output peak current will
increase due to the current ripple, and overcurrent trips may
frequently occur.
Power-factor improvement capacitors must not be installed on the
inverter's output. When operating a motor with power-factor
improvement capacitors installed, remove the capacitors,
or the
inverter may fault trip orthe capacitors may be damaged.
u ( >----------
Power-factor improvement
capacitors or surge absorbers
Use with voltage sources other than the rated voltage is not possible.
If necessary, use a transformer, etc., to increase or decrease the
source voltage to the rated voltage.
A DSA (lightning surge absorber) is used for protection in the unit. If a
surge voltage exceeding 2600 to 3600V peak is applied, the device
will light like a glowing electrical discharge. This will cause no
problems if the condition does not continue for an extended period of
time.
(Refer to Fig. 6-2-1 Fig.@on page 21. )
- 7 -

Use of multiple inverter
units:
E6580516
Observe the following points when using multiple inverter units on the
same power source line.
High-speed
shut-off fuse
~1 ~2 I
~~--o c~~---~~cM
1
CC~
---<~lo---fZt--8
MCCBn
---~Jo---fZt--8
As shown above, there is no fuse installed in the inverter's main
circuit. If a short circuit fault occurs in the inverter, not only MCCB2
will trip, but the main breaker MCCB1 may also trip.
Select the shut-off characteristics of MCCB1 and MCCB2 so that a
selective shutdown can be executed and only MCCB2 trips. If the
optimum characteristics cannot be selected, install a high-speed shut-
off fuse after MCCB2. (Refer to page 14 for MCCB selection.)
4.3 Inverter Disposal Precautions
Observe the following points when disposing of the inverter.
Explosions from
incineration:
Gasses from plastics:
Disposal method:
Placing the inverter in an incinerator may be dangerous, as the
electrolytic fluid used in the electrolytic capacitors may expand and
explode.
The plastic used for the cover, etc., may generate poisonous gases
when incinerated.
Commission the disposal of the inverter to a specialist.
- 8 -

E6580516
5. Wiring Precautions
5.1 Connection to Main Circuit (Refer to page11, Fig. 5.1.)
Observe the following precautions when making connections to the inverter.
Confirmation of power OFF: Always turn the primary power distribution panel switch OFF, and
confirm with a tester that a voltage is not present before beginning
wiring to the inverter.
Electrical shock prevention-
Confirmation of charge
dissipation:
Confirmation of main circuit
connections:
Separation of power source
and motor wiring:
Separation of control and
main power supplies:
Before changing the wiring, wait at least five minutes after the
"CHARGE" lamp inside the inverter has gone out, and then confirm
that the capacitors have fully discharged by using a tester, etc., that
can measure high-voltage DC. The internal electrolytic capacitors are
charged, and there is a danger
of electrical shock if the charged areas
are touched while the "CHARGE" lamp is on.
Do not touch the terminal
block or remove the upper cover while the lamp is lit.
The inverter will be damaged if the input power source is applied to
the motor terminals (UfT1,
vrr2, WfT3). Always confirm the wiring for
the power source terminals (R/L1, S/L2, T/L3) and motor terminals
(UfT1, V!T2, WfT3) before turning the power on.
To prevent problems due to radio-frequency noise, etc., do not bundle
the wiring to the input power terminals (R/L
1, S/L2, T/L3) and the
motor terminals (UfT1, V!T2, WfT3) together.
In order to maintain the control power supply to display faults orto
operate the communication options while the main circuit power is
shut down, remove the two shorting bars (between R/L1-RO, S/L2-SO)
on the control power supply terminal block. Connect the control
power to a power source that is separate from the main circuit supply.
5.2 Connection of Control Signals
Observe the following points when making control signal connections.
Rating of relay contacts: Use a relay intended for use with micro-current (min. applicable load
rating less than 4mA-24V.
), and install a surge killer on the relay's
exciting coil.
Power wiring for control circuit: Use shielded wiring or twisted-pair wiring for the control circuit, and
separate the wiring from the main circuit wiring.
Control wiring wire sizes:
Isolation from main circuit:
The following wiring sizes for the control circuit are recommended.
Frequency setting signal input, frequency meter, ammeter: shielded
wire that
is 0.3mm2 or lager
Other signals: Vinyl-insulated wire that is 0.75mm2 or larger
All control terminals other than FLA, FLB and FLC are connected to
internal electronic circuits, so input signals must always be electrically
isolated from the main circuit.
- 9 -

Ratings of connected
meters:
Rating of FLsignal contacts:
External use of control
power:
Open collector outputs:
Frequency-setting
potentiometer:
5.3 Other Precautions
Use of crimp-on terminal
lugs:
Grounding terminal:
Built-in braking resistor:
Internally-connected (E)
terminal:
E6580516
Connect a full-scale 1mAdc DC ammeter or full-scale 7.SVdc-1 mA DC
voltmeter to the control terminals.
The contact rating of the protection operation detection relay (FL) is
250Vac (cos¢' =0.4) 30Vdc-1A.
A max. of 24dc
-1 OOmA can be used from the P24 control power
terminal to drive external relays.
The RCH and LOW control terminals are open-collector output, and
can output a max. 24Vdc-50mA. Use of a 24Vdc OMRON
MY1 relay
(RY)
is recommended.
Always install a diode (200V-1 A class)
for surge absorption. Take special note
ofthe diode polarity to avoid incorrect
application.
~P24
~RCH
Use a potentiometer rated at 1k to 1 Ok Q-1/4W for the frequency-
setting input signal.
The clearance between terminals on the inverter main circuit terminal
block
is small, so use sleeved crimp-on terminal lugs for all main
circuit terminals. Take special care during connection so that the
terminal lugs do not make contact with neighboring terminal lugs.
Always ground the G/E grounding terminal with a wire that is 3.5mm2
or larger.
For inverter capacities that are 3.7kW or less, a built-in braking
resistor is connected between the main circuit terminals
(PA 1) and
(PB1), providing dynamic braking as a standard feature.
The
(E) terminal is for internal connections, so do not remove
connections from it or make any external connections to it.
-10 -

The main circuit wiring is shown in Fig. 5.1.
(For 3.7kW or less, not showing control power terminals RO, SO)
Radio noise
reduction filter
3-phase power
source
(Stand-alone
type option)
Magnetic contactor
Inverter main circuit terminal block
Fig. 5.1 Main circuit wiring
Motor
(
The motor's forward rotation is in
the counterclockwise direction
(in the direction
of the arrow)
looking from the shaft end.
E6580516
Note} A DC reactor (stand-alone type option) can be installed on 5.5kW and larger units. (Refer to the
function of main circuit terminals
PO and PA on page 18.)
Installation of non-fuse breaker
(1) Install a non-fuse breaker (MCCB) for wiring protection on the input power source side.
(2) Avoid frequent starting/stopping by turning the non-fuse breaker ON and OFF.
(3) Start and stop by turning terminals F to CC (or R to CC) ON and OFF.
Installation of primary magnetic contactor
(Refer to page 14; Examples of selecting equipment for wiring.)
(1) When using an external braking resistor, install a magnetic contactor (MC) or non-fuse breaker with
trip coil (MCCB) on the inverter's power supply input side for protection. Make sure that the power
circuit can be opened with the built-in fault detection relay (FL).
(2) The VF-AS has a built-in fault detection relay (FL). Connect the contacts of this relay to the primary side
magnetic contactor (MC) operation terminals, so that the MC can be opened when the inverter's
protection circuit functions.
The fault detection relay (FL) contacts (250VAC-1 A cos¢' =0.4) can be directly connected on 200V
systems. When using a 400V system, a transformer must be used to create 200V or less for the FL
sequence.
If the MC exciting current exceeds the FL contact rating, install another relay step.
(3) Turn terminal F (or R) to CC ON and OFF to frequently start and stop. Due to repeated inrush currents
when the power
is turned on, the life of the inverter will be shortened when the primary magnetic
contactor is used to start and stop, so do not use this method to start and stop frequently.
(4) Install a surge killer on the magnetic contactor (MC) exciting coil.
- 11 -

MCCB
'0-----.o R
'0-----.os
"Y>-----.()T
FLC
Note 1 Surge killer
Power·---~------------------------------------''
source·---------------------------------------------
FLA
Note
1) When using MCCB with trip coil instead of MC.
VF-A5
E6580516
uo-------
Vo--------l
Wn-------
Fv-----.
R --~I
CCv------'
I
Forward run
/stop
Reverse run/stop
Note 2) When using a 400V system, a transformer is necessary to provide 200V or less to the FL
relay sequence.
Fig. 5.2 Wiring example using a magnetic contactor
Installation restrictions of secondary-side magnetic contactors
(1) As a rule, if a magnetic contactor is installed between the inverter and motor, do not turn it ON/OFF
while running. (If the secondary-side contactor is turned ON and
OFF while running, a large current
may flow in the inverter, causing inverter damage and failure. )
(2) A magnetic contactor may
be installed to change the motor or to change to the commercial power
source when the inverter is stopped. Always use an interlock with the magnetic contactor in this
situation so that the commercial power supply is not applied
to the inverter's output terminals.
Installation of overload relay {thermal relay)
(Refer to page 14; Examples of selecting equipment for wiring. )
(1) The VF-AS has a built-in overload protection function that uses an electronic thermal relay. However,
in the following cases, the thermal relay operation level must be adjusted or an overload relay matching
the motor's characteristics must be installed between the inverter and motor.
CD When using a motor having a rated current value different from a Toshiba general-purpose motor.
(Adjust the electronic thermal level)
® When running a single motor with an output less than the specified standard applicable motor, or
when running several motor simultaneously (An overload relay must be installed on each motor. )
Note) If the motor cables for a 400V class inverter are long, the thermal
relay may malfunction. In this case, lower the carrier frequency (refer um
to adjustment parameters on page 71 ), or install a 0.1 µ to 0.5µ F- ·
1 OOOV film capacitor between the inpuUoutput terminals of each
phase's thermal relay.
<Example> When using external thermal relays, the inverter can be externally fault-tripped
and immediately stopped by using the following method (Fig. 5.3).
-12 -

E6580516
T~Ry
u----'
V.......+.....---'
w ---~
Note) In this case, ensure that $4 is set to "Emergency
stop function", by setting! :t ~I in
S4 I
I-~
!.._
I
I
I
~!
c..-.st to 10.
If the Th-Ry functions, the inverter will display
"E ", and fault trip.
cc *Other unused terminals can also be used instead of the S4 terminal.
Fig. 5.3 Wiring example using external thermal relays
[,,-.Sf:: etc., indicate the LED display on the operation panel. (Refer to Appendix 3, Character
codes, on page 131.) The boxed items indicate a parameter or panel operation key.
(2) When using the VF-AS to drive a "Toshiba VF motor", designed exclusively for constant torque/inverter-
driven applications, set the electronic thermal protection characteristics for a VF motor.
(Refer to pages 77, 78, Electronic Thermal Protection.)
(3) For protection measures, use of a motor with an imbedded-type thermal relay in the motor coil is
recommended when running a motor at low speeds.
Restrictions on the installation
of power-factor improvement capacitors (both input/output)
Do not install power-factor improvement capacitors on the input or output sides of the inverter. Large
currents containing high frequency elements may flow to the capacitors and adversely affect them.
Capacitors on the output side may cause the inverter to overcurrent trip. Install an input reactor or DC-
link reactor (optional) for power-factor improvement.
Countermeasures against radio wave interference
The inverter may cause radio wave interference to audio equipment, etc., used near the inverter.
In this
case, install a radio noise reduction filter (optional) on the inverter's power source side, or shield the
cables to the motor with a conduit to reduce the interference. Contact your dealer for further details.
Cautions concerning ground faults
Verify that there are
no incorrect connections between the motor and inverter and that there are no
short circuits
in the motor before beginning operation. Do not ground the neutral point of a star-
connected motor.
Installation of an input reactor
An input reactor can be used to improve the input power-factor, to suppress high harmonic elements,
and to miminize the risk of damage to the inverter that may be caused by sudden power fluctuations.
Always install an input reactor when connecting the inverter to the following types of systems.
(1) When power source capacity is SOOkVA or more, and when power source capacity is greater than
the inverter capacity
by a factor of 10 times or more.
(2) When connecting the inverter to the same power system as thyristor-commutated control
equipment.
(3) When connecting the inverter to the same power system as a distorted-wave generation source,
such as an arc furnace or thyristor-switched converter unit.
Leakage currents
Leakage currents may increase slightly depending
on the connection method.
(1) When multiple inverters are connected to one ELCB, increase the ELCB current sensitivity value.
(2) Keep the wiring length between the inverter and motor as short as possible.
(3) Use an ELCB with high-harmonic suppression.
-13 -

E6580516
Table 5.1: Examples of selecting equipment for wiring
Inverter
Non-fuse breaker Magnetic
Overload relay
Surge killer
Wire size
(MCCB) contactor (MC) Th-Ry
Voltage
Applicable
Model Rated
Toshiba
Rated Toshiba
Adjusted
Toshiba Model Main
DC Dynamic
motor
current value
class
(kW)
current model
current model
(A)
model (Note 2) circuit
reactor braking
(A)
(A)
(Note 1)
(mm2)
(mm2)
resistor
[Reference
(Note 3)
(mm2)
value]
0.4
-2004P
5 8830
11
C13J 2.3 T13J 2.0
0.75 -2007P 10 8830
11
C13J 3.6
T13J
2.0
1.25
1.5
-2015P 15
8830
11
C13J
6.8 T13J 2.0
-
2.2
-2022P 20
8830
11 C13J
9.3 T13J 2.0
2.0
3.7
-2037P
30 8830
18
C20J
15
T20J 3.5
5.5
-2055P
50
E850
35 C35J 22 T35J
Toshiba
8.0
5.5
7.5
-2075P
60
EH1008
50 C50J 28 T35J
model SS-2
14
11
-2110P
100
EH1008
65 C65J
44
T65J
14 14
5.5
or
200V
15
-2150P 125 EH225
80 C80A 57 T65J
Marcon
22
class
18.5 -2185P 125 EH225
93
C100A 70 T80A
Electronics
38 38
22
-2220P
150 EH225
93
C100A
85
T125A
RFM2E224KO
38 22
30
-2300P 200 EH225
180 C180A
108
T125A
60 60
37
-2370P 225 EH225 180 C180A
138
T150A
100 38X2
45 -2450P 250 EH400 220 C220A
162
T180A
100 150
55
-2550P 250
EH400
220 C220A 198
T220A 100
60
75
-2750P
500
EH600
300 C300A 3.2 T400A 100X2 150X2
90
-2900P
600
EH600 400
C400A 4.0 T400A 150X2
0.75 -4007P 5 SS30
9
C13J 2.3 T13J 2.0
1.5
-4015P
10 SS30 9
C13J
3.6
T13J
2.0
1.25
-
2.2 -4022P 10 SS30
9
C13J
5.0 T13J
2.0
3.7 -4037P 15
SS30 9
C13J
6.8
T13J
2.0
5.5
-4055P
30 SS30
17
C20J
11
T13J 3.5
2.0
7.5 -4075P 30 SS30 17 C20J 15
T20J 5.5
3.5
2.0
11
-4110P
50 ES50 33 C35J 22 T35J
Marcon
8
5.5
15 -4150P
60
EH1008 48
C50J 28 T35J
Electronics
8 8.0
3.5
18.5
-4185P 75 EH100B
48 C50J
35
T65J
RFM2H104KD
14
14
400V
22 -4220P 100 EH100B 48
C50J
44
T65J
(400V system)
22 8.0
class
30
-4300P 125 EH225
80
C80A
57 T65J
(Note6)
38
22
37 -4370P 125 EH225
93
C100A
65
T80A
38 38
45
-4450P 150
EH225 180 C180A
85
T125A
38
60 22
55
-4550P 175 EH225 180 C180A
100
T125A
60
75
-4750P 225 EH225
220 C220A 138 T150A 100 100
110
-411 OKP
350
EH400 265
C300A 2.7
T220A
60X2 60X2
132 -4132KP 400 EH400 400 C400A
3.6
T400A
60X2 100X2
60
160 -4160KP
500
EH600 400 C400A 4.2 T400A
100X2 150X2
220
-4220KP 700 E800
600
C600A
CT T20A 200X2 200X2
80
280
-4280KP
800
E800
600
C600A
CT T20A 200X2 250X2
(Note 1} When selecting a magnetic contactor (MC) with 2a auxiliary contacts and using the auxiliary
contacts for the control circuit, parallel the 2a contacts to improve contact reliability.
(Note 2} Install a surge killer on the magnetic contactor or relay exciting coil.
(Note 3} The wire sizes for the input side R, S, T and output side U, V, Ware shown. These sizes apply
only when the wiring length is less than 30m. Increase the wire sizes when the length exceeds 30m.
(Note 4} For the control circuit, use the shielded wire of 0.75mm2 or more in wire size.
(Note 5) Use a wire size 3.5mm2 or more for the grounding wire.
(Note
6) 200V system: type SS-2 or Marcon Electronics RFM2E224KD
- 14 -