Toshiba Tosvert VF-A3 User manual

TOSHIBA
Instruction Manual
It ·11" 'or C:OOOU,,~· I ~
~ ... . ~ \.
:i.l
High Performance Inverter
TOSVERT VF- A3
200V class O.4--55kW I
400V class O.75--75kW I
I

Introduction
Congratulaitons for your selection of the "TOSVERT VF-A3", a high performance version of
Toshiba's line of soiid-state inverters.
The VF-A3 is a high performance inverter equipped with a number
of specific functions that are
designed for a wide variety of applications. You will find the VF-A3 very easy tooperate
by inputting
its easy-to-remember commands from the inverter's keyboard type operating panel. This user-
friendly interface allows you to change basic inverter settingsand operations without having to halt
operation fo look up this complicated instructions in the user's manual: The inverter's operational
reliability has been made highly resilient and hard to trip by using the latest technology.
Specifically, the VF-A3 has current limiting, retry, soft-stall. and non-stop control functions
(protection against instantaneous power failure) all built into its compact, sturdy body.
To help you take full advantage of the VF-A3's unsurpassed capabilities. we strongly advise that
you read this manual carefully before operating the inverter.
Toshiba recommends that this document be preserved
in the custody of an actual user of the VF-
A3
so that it is always available for immediate reference,and for future maintenance and inspection
requirements.

Check Your Equipment
When unpacking and installing the VF-A3, exercise caution that you don't damage its sensitive
circuitry by jolting
of vibrating the unit in excess of its tolerances.
After unpacking the VF-A3,
check the following- points:
1) That the VF-A3 has not been damaged during shipment,
2) Confirm that the unit you received has the exact ratings and specifications that you ordered.
Look
at the unit's model code number, which is stamped on the unit's name plate (see
illustration below),
to determine if the unit you received matches your order specifications.
Our utmost efforts have been applied to assure maximum quality control in the manufacture,
packaging, and shipment
of this inverter. However, if by any change a problem with the inverter
should arise, promptly
contact your Toshiba representative.
Inverter Model Code
VFA3-21SOP
L Equipped with operating panel
'------- Capacity: 15kW
'-------- Input voltage: 200-volt class
'---------- Series code: VF-A3

About this manual
Chapter summaries:
Chapter 1
~nstallation and Operation
Installation, wiring, and preliminary operation
Chapter 2 Simplified Operation
Simple operations with standard functions
Chapter 3 Various Operating Functions
M~thods for monitoring, setting of various operating functions,. and operations
Chapter 4 Signals and Connections for Automatic Operaiton
Information on run-dedicated equipment such as frequency meters and an ammeter required
for automatic operation, and their connection, as well as dedicated control Signals such
as
fault detection signals and reset signals
Chapter 5 Equipment Specifications
Equipment specifications, models, external dimensions, protective functions, electronic thermal
protective functions, soft-stalling function,retry function,and the auto-restart function
Chapter 6 Setting Adjustments
An overview of the inverter's settings, adjustments and display data for various functions
Chapter 7 Options
Optional and standard equipment for the VF-A3 inverter
Chapter 8 Wiring Precautions
Installation precautions, operating environments, main circuit connections, wiring supplies, and
control Signal connections
Chapter '9 Fault Messages
Error messages and suggested remedial action
Chapter 1
0 Maintenance and Inspections
Preventive maintenance and periodical checks
Chapter 11 Storage and Warranty
Storage environment for this equipment and extent of warranty coverage

Remarks:
CD Notations such as IWRTI,INEXTIand [] given in the table for operating procedure as well as
elsewhere in the text of this manual refer to the respective keys of the operating panel.
~ The notation" <-> "that appears in the table for operating· procedure signifies that the each
of the indications shown on both sides
of the" <--> " appear alternately on the inverter's
monitoring display.
(3) In the operating procedure table, the indications appended with a colon (:) refer to the title or
data display
that appears in the inverter's monitoring display. Those without the colon refer to
operating frequency or cause of a fault.
@ An asterisk "." indicates that a complimentary explanation or reference matter is provided for
the subject bearing the mark.
@ A description marked with aframe CJ indicates a precaution or an interdiction.

CHAPTER 1
CHAPTER 2
TABLE OF CONTENTS
INSTALLATION AND OPERATION ................................................ .
1 .1 Installation···················· .............................................. ................. 2
1.2 Wiring
connection········································································· 3
SIMPUAED OPERATION··· ...... ........ ......... ................ ...................... 7
2.1 Operation Panel············································································ 8
2.2 Simplified operation
.....................•............................................... 12
CHAPTER 3 VARIOUS OPERATING FUNCTIONS
..... ···········································1 5
3.1 Functions and adjustments ............................................................. 16
3.1.1 First
functions····································································· 22
3.1 .2 Second functions ............................................................... 23
3.2 Frequency setting [ F[ J........
'" ................................................· .. ·24
3.3 Status monitoring ........................................................................ 26
3.3.1 Monitoring during a run or when halted
................................. 26
3.3.2 Monitoring trip status
......................................................... 31
3.4 Standard setting mode [ t:l,o } .....................................................34
3.5 Setting voltage/Frequency characteristics
·······································35
3.5.1 Maximum frequency [ F,'-{ J ................................................36
3.5.2 Torque boost [ ub J............................................................37
3.5.3 Automatic torgue boost
[R .ubJ ........................................... 38
3.5.4 Base frequency[
uL J ........................................................ 39
3.5.5 V
/f patterns[ Pt. J.............................................................. 40
3.6 Acceleration/Deceleration time
[
R'" o'E" ,ot I R"J d'c'J Pt J SC' :3J···································41
LL/. L/. .1. LLC. LLC. .c. LLL
3.7 Connections for operating the inverter by external signals ................. 44
3.7.1 External signal connections· ................ ·· ...... ·..··......·....··..····· 44
3.7.2 Terminal connections
........................................................ 47
3.8 Forward/Reverse
run, coasting stop, and
emergency stop
operations··························································· 49
3.8.1 Operation via the inverter's control[F.,. J ............................. 49
3.8.2 External signal operation ..................................................... 50
3.9 Frequency setting singnals (setting with external signals) ................. 52
3.9.1 Types of frequency setting signals ...................................... 52
3.9.2 Priority of RR terminal input [,-,-.ffJ .. ··· .. ··.. ·.... ·· .. ···· .. · .. ··· .. ·· 54
3.9.3 Frequency setting signals [ ,0/. F -,0/. ,02. F-,02 J ................. 54
3.10 Upper and lower limit frequencies [ UL. LL } .................................. 56
3.11
Jogging run L
r ,n, I
S'- 0 ] ................................................... ········56
uuu, u. L'
3.11.1 Operaiton via the VF-A3's control panel ............................. 57
" .of .. 1"'\ "'_ ............ : __ .. L.. ..... =_ .. _ ..... _r \'/i~ .ov+o.rn "'::II I C!i,.,n"'::lll~ ••..•••••••••..•••••.••.•• Fi7

CHAPTER 4
3.12 Multispeed
ru~s [5~ /- 5~ 7 ] ........:............................................. ·····59
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
3.25
3.2,6
4.1
4.2
3.12.1 Panel controlled operation··..
······················· .. ························ 59
3.12.2 External signal operation
..................................................... 60
Frequency jump [FJ/, bFJ/--FJ3. bFJ3 ]
········································62
Start-up frequency [F - 5t ]...................................................... ········62
Operation starting frequency [F"un,F.H~5J ······································63
DC Injection braking [dbF, dbu, dbt] ................................... ············64
Regenerative braking [ Pb] ...................................................... ·····65
Universal unit display [ d5P.2] ..................................................... 67
Data storage function [ I.no.] ........................................................ 68
Output voltage reduction and
output voltage regulation
[Po aUt].....................................................68
Simplified patterned run operation [Pt.Jt,Pt.I-Pt. 7t, Pt. 7] ············69
PWM carrier frequency switching [ [F ] ............................................ 72
Command modes
[[.fWd] ...................................................... ········73
Frequency setting mode[F.nOd] .....................................................73
Paramenter setting mode [P.nOd] ......................................................74
PI control [Fb. PI, CP, CI, CR, CF5] ·········································· .. ······74
SIGNALS AND CONNECTIONS FOR
AUTOMATIC OPERATION········ ......................................................... 77
Connection of signals .................................................................... 78
4.1 .1 Operation signals ................................................................. 78
Terminal selection
.......................................................................... 79
4.2.1 Selection of input terminals U.tb] ·········································79
4.2.2 Seleciton of output terminals ro.t b] ......................................... 81
4.2.3 Upper and lower limit frequency
signal output [ UL. LL ] ........................................................ 82
4.2.4 Low-speed and speed-reach signal
output [LF, ,[H, ,,[H, F,[H] ···································· .. ·······83
4.3 Meter conneciton .......................................................................... 84
4.3.1 Connecting a frequency meter [F n] ...................................... 84
4.3.2 Ammeter connections [ Rn ] .................................................. 85
4.4 Fault-detection signal terminals ........................................................ 86
4.5 Reset signal terminals .................................................................... 86
4.5.1 Resetting the inverter via the operating panel ··························87
4.5.2 Resetting with an external signal ·······.. ··············· ..···....·······.. ··87

CHAPTER 5
CHAPTER 6
CHAPTER 7
CHAPTER 8
VF-A3 SPECIRCATIONS ............................................................. 88
5.1 Standard specifications································································ 89
5.2 External dimensions
................................................................... 91
5.3 Protective functions ................................................................... 93
5.3.1 Electronic thermal function
[I:H,- ] ·····································93
5.3.2 Stall prevention function [51: L] ........................................... 93
5.3.3 Selection
of electronic thermal characteristics
[ 5EL'-{ ] ...................................................... ················94
5.3.4 Retention of system status [ 1:,-. [L J.................................. 95
5.3.5 Restart try function [ ,-1:,- '::i ] •••.•.••••••••.•••••••••••••••••••••••••••• 96
5.3.6 Automatic restart function
(after instantaneous power interruption
[R,- 51: ] ···················97
5.3.7 Power control function for momentary power failuer. [Uu.C] ····98
SUMMARY OF SETTINGS AND ADJUSTMENTS················· .............. 99
OPTIONAL UNITS ······································································105
7.1 Options for external installation ····················································106
7.2 Buil-in options ............................................................................ 107
WRITING PRECAUTIONS ............................................................ ·110
8.1 Installation site and operating environment·· .................................. ·111
8.2 Main circuit connections ...................................................... ·······111
8.2.1 Power supply to the inverter .......................................... ····111
8.2.2 Motor to the inverter to a ground terminal ......................... ···113
8.2.3 Between the inverter and the regenerative discharge
resistor/regenerative discharge unit
.................................... ·114
8.2.4 Wiring specifications ...................................................... ····115
8.3 Control signal circuit wiring ·················································117
CHAPTER 9 FAULT MESSAGES······································································118
9.1 Fault messages ...................................................... ···················119
9.2 Symptoms of common motor problems ···········································121
CHAPTER 10 INSPECTIONS AND MAINTENANCE
............................................. ·123
10.1 Preventive maintenance and periodic inspection ........................... ·124
CHAPTER 11 STRING THE INVERTER AND TERMS OF WARRANTEY .................. ·1 26
11.1 Storing the inverter .......................................................... ·....··· .. ··127
11 .2 Terms of warranty ............................................................ ·1 27

[-,.
CHAPTER 1 INSTALLATION AND OPERATION
This chapter describes the installation and wiring connections of the VF-A3 inverter. It also
explains a simplified operation using the inverter's standard functions.

CHAPTER 1
Installation and Operation
1.1 Installation
The TOSVERT-VFA3 inverter has been designed for mounting on a 'vertical wall that receives
adequate ventilation. See Figure
1.1 for an illustration of clearances required for proper installation
of the inverter to ensure adequate ventilation and access for maintenance. If you attempt to insstall
this unit in any position other than the recommended vertical position, please consult with your
Toshiba representative beforehand.
Avoid installation sites wherer the atmosphere is hot, humid, or contaminated with dust or metallic
particles. If you must install the inverter in such environments, please consult with your Toshiba
representative before you install the inverter.
CAUTION: Models with a capacity of 3.7 kW or smaller are equipped with a regenerative
discharge resistor
on the rear side of the inverter. Because an operation involvir:'g
frequent starting and sopping will result in higher exhaust air temperatures (up to
150'C) due to the heating of the inverter's regenerative discharge resistor, select the
installation site carefully
(e.g., mounting on a metallic surface may be a good choice).
Scm min,
RemQlle the dust
~se.l.twr
compietJng ,nsult.tJOn
andw1nng.
Scm min,
~mlTh.''''''".''S
III~ _,ngpaMI ~
10Cmmin.
coo..rl'd with.
~s.e.I,wnlch
snould 1M ,.",0WflI .
wnen you are ready to
bergin operation.
Figure 1.1 Installation clearances for the VF-A3

1.2 Wiring connections
You can operate your VF-A3 inverter with its standard functions by connecting the unit to a power
supply and a drive motor. See Figures 1.2 and 1.3 and perform the connection work following the
procedure specified below.
1) Open the VF-A3'a front cover.
2) Connect an input power supply (power lines from a distribution panel) to Control power supply
terminals as well as U/R, L2/S, and L3rr on the left side of the inverter's main circuit terminal
block.
3) Connect the inverter's motor drive terminals T1/U, T2N, and T31W to your motor's U, V, and W
terminals.
4) Connect the inverter's ElG terminal, located to the left of the main circuit terminal block, to your
system's ground wire.
5) After completing the installation and wiring connections, remove the dust prevention seal that
is pasted on the upper" part of the unit (for models of 200V, 3.7kW and smaller).
• o
I
CD Remov._
. Kr..ws
I
L
''''";!;:-I
I
~ To remove the
cover. pull the
COV~r fof'will"d and
liftuo
sunulUneously.
J
Figure 1.2 How to open the front cover
• Mount the cover to the original place. You will find the rating nameplate on the right side of the
unit.
• Before you begin connecting wires, be sure to turn the distribution panel's main switch OFF.
Before you start wiring, ensure that the inverter's "CHARGE" lamp in no longer lit.

'-"
(')
a..
-.
I
II
I
II "ON II J~P Eal ~L I
I ~~c
I
h~jB'jtd' JOG I
I I PANEL CONTROL I 2ND i i
01
4 5 I 6 I
8c:JE
Bt=al ~/~C II UL/LL!
i
I I 1 2
~I
E I STOP :
18 t=d t=jEJ
I
I
II NEXT I 0 . II WRT I
I I
i
I
,
JP2~~JP1
10!01Q91Q9!0i0101010!010!0i®101®10101010~0
. FLA FLB FlCP24RCHLOWFM AM
PP RR IV CC ST F R lC 551 JOGAD2RST CC
(Ul) (ll) (552) (553)
0
1Q9101010101®1®101®1~I@J
G/E RI n l1/R L2/S L31T TlIU T2N T31W
1 ,1 ~~\,
To maintenance ground
'----y-----/
Power input:
'-----v--'
To motor
To distribution panel
®
r--
-
-
CHARGE LAMP
Lights when the main circui
Charging
JP3: Jumper for power
control switching
for instantaneous
power failure
Operating panel
JP2: Jumper for switching
between 10V and 5V
JP1: Jumper for SWitching
between I and V
Control circuit terminal block
This jumper is ON
when shipped from the factor:
Main circuit terminal block
Figure 1.3 Terminals for connecting the VF-A3 to the power supply and to a motor.

.. -
t-®-
r.r-"'I.., Regenerative diSCharge resistor or regenerative
l ---- I discharge unit (option)
JP2
T1(Ult---_
Motor
T2(V) 1M
T3(W)~--./
RST
A02(SS3l
JOG(SS2)
SS1
CC
R
Uumper on when
shipped from factory)
! ~Ry
~ LOW(LL)
10V 5V F .
~ V ST
TYPE
2
c::::r::::::JJP1
FM AM PP RR IV CC G(E)
MARK AND VOLTAGE
*A I *S
R1 I T1
200V - SOHz
200V to 230V -60Hz
R20 I T20
200V to 220V - SOHz
(a) 200V CLASS
...-,
.... ~, Regenerative discharge resistor or regenera1ive
1 : discharge unit (option)
MCC8
--£"'o---~L1(R)
3-phase '"'
power supply - o---H>L2(S)
T1IU) ~--"" Motor
T2(V)~--~ 1M
T3(W)~--.J
~o---~L~
TYPE
1
2
3
.----
r!
~ Ry
*A
R1
m
rn
m
[]]
FLA
P24
RCH(UL)
LOWILL)
FM AM
JP2
RST
A02:SS3)
JOGISS2)
SS1
CC
R
1ev 5V F
c:::!I::JI V ST
w:::t:::!]JP1
PP RR IV CC GIE)
MARK AND VOLTAGE
T1
R20
Oumper on when
shipped from factoryI
*0
T20
400V to 440V - SOHz
400V to 460V -60Hz 200V to 220V -50Hz
200V to 230V -60Hz
R38/R41 T38/T 41 R22iR24 T22/T24
380V to 415V -SO/60Hz' 220V to 240V -SO/60Hz,
R41/R44 : T41/T44 : R22/R24 T22/T24:
415V to 440V -SO/60Hz •220V to 240V -SO/60Hz'
(b) 400V CLASS

Because all the inverter's control terminals (except FLA, FLB, and FLC) are designed for
electronic circuits, be sure to insulate these signal circuits from the main circuit.
*) Note: Regenerative discharge circuit and terminals
VFA3-2004--2037P
VFA3-2055,2075,4007--4075P
+
.,.
r- ~ ~
VFA3-2110,2150,4110,4150P
+
T.
I
.... , Regenerative discharge
i Ju~it (optional
~ Regenerative r, Standard discharge resistor r'l Regenerative discharge resistor
dis~harge' t) ~ (optional for exte~1 installation)
resistor I PR CD When a regenernive discharge I
(extemally installed)I ---i resistor is employed. tonnect.. fB
L- - PB short tirtuit atrau terminalsPR·ps.
(Z) When a regenerativediJc:harge
unit is externally tonnected. be
sure to open terminals PR·PS.
~ for external installatior.
I
I
I,.J
--4
to"'!
---E
When yor use a regenerative discharge resistor/regenerative discharge unit, refer to section 8.2.
3(page
114).
Figure 1.4 Standard connection
CAUTION: Do not connect a power-factor improvement capaCitor either to the power supply side
or the motor end of the VF-A3 inverter system.
An accidental connection of cables from a power supply(L1(R), L2(S), L3{T)) to termi-
nals
T1(U),T2(V), and T3(W) of the inverter could damage the inverter.
To protect the VF-A3's circuits, mount a molded case circuit breaker
(MCCB) on the
power input side.
(For fuse sizes, see Table 8.1.)

CHAPTER 2 SIMPLIFIED OPERATION
This chapter will explain the VF-A3 inverter's operating panel and simplified operation by using its
standard functions.
I
~
1
f
I
,
.

P7
CHAPTER2
Simplified Operation
2.1 Operating panel
MonitOl' display
Displays freQuency, title, and
various operating
data
Panel control LED
ILights when panel control
mode is selected.
, Blinks when you push the
"RUN" key.
You
cannot switch it during
a run.
fr .
i!
,
i
,
~
c PANEL CONTROL
I
r T
1 I I
I
L:::.
I
V'
I I
d
;
Panel control operation/terminal input
operation switching key
Toggles between
the panel control mode
and terminal input operating mode.
ISetting and monitoring keys
I
IUsed for setting and monitoring of each
function or data values.
I
,
Hz
i MON II J~P led! S:L I
%
SEC
IJ
i
IE~I
REF
II JOG I
i
i
2ND
ltd
'I 4 I 5
I
iii
i
I I
II
V/F
II ACC/DEC !I UL/LL i
I
CTRL
I ,
CLR
I ! i
II
II 2 Ii 3 '
I 1
I i
I
iii I
a I IFMAX
Ii
'E]
READ
I,
I
jl WRT
! NEXT
! o I
i
I
I Run/stop keys
I
: Conducts a forward/reverse run,. a decelerating stop, or a coasting stop
i (when you have set each function), and an emergency stop (dUring an
, automatic run or from another panel for remote operation).
Increasing/decreasing keys for freQuency and
data I
Used for increasing or decreasing operating freQuencies and various II
other values for setting. I
Figure 2.1 Operating panel

Keys for operating the inverter as well as setting adjustments and monitoring are shown below:
1) Operating keys
Table
2.1 Operating keys
Key I Function
i ~i -C-T-R-L--'I; Switches the modes of panel control ope~atio'l' terminal input operation and
! : host command operation (disabled during a run).
I I
I
1,.--1-----.
I~I -----' Increases a frequency setting value and various other data values, and also
sets to forward rotation during a special run (either jogging or multispeed
run) ..
Decreases a frequency setting value and various other data values, and also !
sets to reverse rotation duing a special run (either jogging or multispeed run). '
IIssues a command for starting a normalu
run, mulitspeed run, jogging run, or .
====R=U=N====l, patterned run. Also activates the calibration of the analog frequency meter
Ior an ammeter (FM or AM).
i
r---S-T-o-p---'Iilssues a command for stopping a normal run and patterned run, and for
.! allowing coasting stop.
:~

2) Setting and monitoring keys
Table 2.2 Setting and monitoring keys
Key Function
I MON I Toggles between
to and from the monitoring and setting modes.
I
2ND
I Switches
to the second function mode.
! ! NEXT Ii Displays the next item in the same function number.
1 I
I Clears the current display, and also clears the data after a trip.
I CLR I I·Note: The data clear must be preceded by pushing WRT key.!
I
I! WRT IWrites each piece
of data.
I I•Note: Writes to the inverter memory.I
I
I
READ
I "." is a decimal
pOint.
,
:I
I,
.
Ii "READ" reads out the data.
I : I'
I I"0" is the numerical zero. .
I--F--AX--I : .• In the first function mode, "FMAX" selects the standard setting mode and sets
I, M
, i : the maximum frequency (disabled during a run).
i, 0 i
, In the second function mode, it sets the start-up frequency and the operation
starting frequency.
: "1" is a number.
------,------" In the first function mode, "V /F" sets the torque boost, automatic torque
V/F '
------;1 • boost, base frequency, and V /f pattern.
___ 1 __ --'i : In the second function mode, it sets the DC injection braking start-up
: frequency, braking voltage, and braking time.
,
: "2" is a number.
-A-C-C-/D-E-C--'I : "ACC/DEC" sets the acc./dec. time 1 or 2, and the pattern of acc./dec. 1 or
,
2, and also selects acc./ dec. 1 or 2.
2
---------', In the second function mode, sets the universal (or arbitrary) unit desplay
function.
"3" is a number.
-------.1: In the first function mode, "UL/LL" sets the upper and lower limit frequencies.
Ul/LL
----~I • In the second function mode, "UL/LL" selects the low speed signal output
3 I frequency and speed reach function, and also sets the speed reach detection
range and speed reach specificaftion frequency.
.. 4" is a number.
OL In the first funciton, "OL" sets the overload protection level and stall activa-
4
--------', , tion level, and also selects the overload protection characteristics.

Key
I
REF
I
5
I JOG I
"6
I JMP I
7
I
TB
I
8
"
I SEL I
I
I 9 I
I
Table 2.2 Setting and monitoring keys (continued)
Function
"5" is a number.
In the first function mode, "REF" sets the output frequency at IV
Terminal input signal point 1 or 2 and also sets the output frequency at points
1and 2,and the priority of
RR terminal input.
In the second function mode, it sets the function TG,PG, or PI control.
"6" is a number.
In the first funciton mode, "JOG" sets the jogging run frequency, jogging stop
pattern, and 1st
-7th speed run frequencies.
In the second function mode, it switches the PWM carrier frequecy.
"7" is a number.
In the first function mode, "JMP" sets the jump frequencies 1, 2, and 3, and
also sets
the jump widths 1, 2, and 3.
In the second function mode, it sets the terminal selection for optional
function, the memory function
the memory function, baud rate, the com-
municational bit and parity,
the stop bit and the output for line/inverter
chengeover option.
"8" is a number.
In the first function mode, "TB" selects the I/O terminals.
In the second function mode, it sets the mode for the patterned run, the I
selection of the patterned time, the number of the patterned repetition times, .
and the operation time of the patterned run 1 through 7 and selects forward
or reverse
run, and also selects acceleration or deceleration.
"9" is a number.
In the first function mode, "SEL" selects forward/reverse run, trip retention,
automatic restart, or restart after momentary interrupt, and in the second
function mode, it selects the commandmode, frequency setting mode, or
parameter setting mode.
I
I
i
I
,
i
,

2.2 Simplified operation
After checking to assure that the VF-A3's terminals have been properly connected to the power
supply and to a motor, you are ready to operate the inverter with the standard settings, which are
described
in Table 3.1 (page 17). For a trial test operation, it is best to start with a low operating
frequency. Use the following procedure.
10peraiton procedure]
Operation
11) Power ON.
2) I CTRL I
3)
a) 0]
I 0 I
tWRTI
b)W······
!WRTI
Action
Turn on the power supply molded case circuit breaker
(MCCB).
A string of characters nOF Fflashes and then numerics 0.0 appear on the
monitor display. n n
U.U
The LED "PANEL CONTROL" lights and the inverter unit phases in the
panel operating mode.
(Another push of "PANEL CONTROL" puts off the
LED.
Either procedure a) or b) sets the operating frequency.
Numerical setting (to set at 10Hz, for example): The "10" and "FC" appear
alternately indicating that setting has been completed.
:0 --.. F[ ..... :
Setting with ~ or ~ key (to set at 5.5Hz for example):
In
IU
Keep pushing the ~ key for increasing the value on the display, and as
soon
as it reaches 5.5, push the I WRT r key: then the "5.5" and "FC" appear
alternately indicating that setting has been completed.
5.5 . > : Fe +-+ 5.5
I
I
~...... To decrease the value, keep pusing the [2J key.
~---+--------------jl
4) I RUN! Raises the frequency to start the forward rotation of your motor. I
15) iSTOP!
I
(Then the normal run follows.) i
!
Lowers the frequency to cause the motor to decelerate and comes to a !
complete stop.