CHINSC ELECTRIC SVF-G7 Series User manual

SVF-G7
SVF-G7
SVF-G7
SVF-G7 Series
Series
Series
Series High-performance
High-performance
High-performance
High-performance Vector
Vector
Vector
Vector
Control
Control
Control
Control General-purpose
General-purpose
General-purpose
General-purpose Frequency
Frequency
Frequency
Frequency
Inverter
Inverter
Inverter
Inverter
Operation
Operation
Operation
Operation Manual
Manual
Manual
Manual
Material Version ：V6.0
Date of F iling ：2012-08-10
Company Standard :
:
:
:Q/0300SSC 001-2012
CHINSC ELECTRIC (CHINA) CO., LTD. could supply all-round
technology support for clients. T he users could contact the nearby
agency or customer service center of CHINSC ELECTRIC
(CHINA) CO., LTD. , and also could contact the manufacturer
directly.
A ll rights reserved. Any alteration is made without notice.
Head office: CHINSC ELECTRIC (CHINA) CO., LTD.
Customer h otline: 86-0533-6285662
Service h otline: 86-13375338006 ;
86-13375338007
URL: www.chinsc.com
E-mail: [email protected] ;
[email protected]

Content SVF-G7 Series Frequency Inverter Operation Manual
I
Content
CHAPTER
CHAPTER
CHAPTER
CHAPTER 1
1
1
1 SAFETY
SAFETY
SAFETY
SAFETY AND
AND
AND
AND NOTES
NOTES
NOTES
NOTES
.........................................................................
.........................................................................
.........................................................................
.........................................................................
1
1
1
1
1.1 S AFETY DEFINITION
........................................................................................
1
1.2 S AFETY NOT ES
................................................................................................
1
1.3 N OTES
.........................................................................................................
5
CHAPTER
CHAPTER
CHAPTER
CHAPTER 2
2
2
2 SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS AND
AND
AND
AND SELECTION
SELECTION
SELECTION
SELECTION
....................................................
....................................................
....................................................
....................................................
9
9
9
9
2.1 N AMING RULE
..............................................................................................
9
2.2 N AMEPLAT E
..................................................................................................
9
2.3 M ODEL AND TECHNICAL PARAMETER S
.............................................................
10
2.4 T ECHNICAL SPECIFICATION
.............................................................................
11
2.5 P RODUCT OUTLINE AND INSTALLATION HOLE SIZES
............................................
16
2.5.1 0.4KW~18.5KW Outline and Outer Size of Hang Machine Plastic
Casing Frequency Inverter
.........................................................................
16
2.5.2 22KW~450KW Outline and Outer Size of Hang Machine Metal
Casing Frequency Inverter
.........................................................................
18
2.5.3 0.4KW~450KW Installation Hole Size of Hang Machine G/P
Frequency Inverter
....................................................................................
19
2.5.4 Outline Size of Keyboard Operation Panel
.......................................
20
2.6 S ELECTION OF BRAKING PACKAGE
...................................................................
20
2.7 S ELECTION OF DC R EACT OR
...........................................................................
21
2.8 F REQUENCY I NVERTER DAILY MAINT ENANCE
.....................................................
22
2.8.1 Daily Maintenance
........................................................................
22
2.8.2 Routine Checking
..........................................................................
23
2.8.3 Replacing of Quick-wearing Parts
....................................................
24
2.8.5 Warranty Instructions
......................................................................
25
2.9 S ELECTION GUIDE
........................................................................................
26
CHAPTER
CHAPTER
CHAPTER
CHAPTER 3
3
3
3 MECHANICAL
MECHANICAL
MECHANICAL
MECHANICAL AND
AND
AND
AND ELECTRICAL
ELECTRICAL
ELECTRICAL
ELECTRICAL INSTALLATION
INSTALLATION
INSTALLATION
INSTALLATION
.............................
.............................
.............................
.............................
27
27
27
27
3.1 M ECHANICAL INST ALLATION
........................................................................
27
3.1.1 Installation Environment
...............................................................
27
3.1.2 Installation Space
..........................................................................
27
3.1.3 Cover Removing Way
....................................................................
29
3.2 E LECTRICAL INST ALLATION
...........................................................................
31
3.2.1 External Electrical Component Selection:
.....................................
31
3.2.2 Instructions For External Electrical Components
..............................
32
3.2.3 Method Of Connecting Wire
............................................................
34
3.2.4 Main Circuit Terminals and Wiring
...................................................
36
3.2.5 Control Circuit and Wiring
................................................................
38
CHAPTER
CHAPTER
CHAPTER
CHAPTER 4
4
4
4 KEYBOARD
KEYBOARD
KEYBOARD
KEYBOARD OPERATION
OPERATION
OPERATION
OPERATION AND
AND
AND
AND DISPLAY
DISPLAY
DISPLAY
DISPLAY
.......................................
.......................................
.......................................
.......................................
44
44
44
44

Content SVF-G7 Series Frequency Inverter Operation Manual
II
4.1 I NTRODUCTION OFKEYBOARD OPERATION AND DISPLAY INT ERFACE
..................
44
4.1.1 Descriptions of Key Function
............................................................
44
4.1.2 Descriptions of Function Indicators
..................................................
46
4.2 P OWER ONS TATE
........................................................................................
47
4.3 D ESCRIPTIONS OF FUNCTION CODE CHECK AND MODIFICATION METHOD
..............
47
4.4 C HECKING METHOD OF S TATE PARAMET ER
.......................................................
49
4.5 P ASSWORD SET UP
........................................................................................
49
4.6 F AULT S RESET
..............................................................................................
49
4.7 A UTO -LEARNING OF M OTOR PARAMET ERS
........................................................
50
CHAPTER
CHAPTER
CHAPTER
CHAPTER 5
5
5
5 FUNCTION
FUNCTION
FUNCTION
FUNCTION PARAMETER
PARAMET ER
PARAMET ER
PARAMET ER SIMPLE
SIMPLE
SIMPLE
SIMPLE LIST
LIST
LIST
LIST
.............................................
.............................................
.............................................
.............................................
52
52
52
52
CHAPTER
CHAPTER
CHAPTER
CHAPTER 6
6
6
6 FUNCTIONAL
FUNCTIONAL
FUNCTIONAL
FUNCTIONAL PARAMETER
PARAMET ER
PARAMET ER
PARAMET ER DETAIL
DETAIL
DETAIL
DETAIL
...............................................
...............................................
...............................................
...............................................
100
100
100
100
6.1 F0 B ASIC FUNCTION GROUP
.....................................................................
100
6.2 F1 S TART -S TOP CONTROL GROUP
..............................................................
113
6.3 F2 VF C ONTROL PARAMET ER GROUP
............................................................
119
6.4 F3 G ROUP VECT OR AND T ORQUE CONTROL PARAMET ER
...................................
123
6.5 F4 G ROUP INPUT SIGNAL GROUP
.................................................................
129
6.6 F5 G ROUP OUTPUT SIGNAL GROUP
..............................................................
135
6.7 F6 G ROUP MULTI -SPEED AND PLC P ROGRAM RUN
.........................................
143
6.8 F7 G ROUP PROCESS PID P ARAMET ER
...........................................................
147
6.9 F8 G ROUP COMMUNICATION PARAMET ER
.....................................................
152
6.10 F9 G ROUP HUMAN -COMPUT ER INT ERFACE
...................................................
154
6.11 FA G ROUP ENHANCEMENT FUNCTION GROUP
..............................................
156
6.12 FB G ROUP PROT ECTION FUNCTION GROUP
..................................................
160
6.13 FC G ROUP APPLICATION PARAMET ER GROUP 1
............................................
164
6.14 FD G ROUP APPLICATION PARAMET ER GROUP 2
............................................
164
6.15 FE G ROUP FREQUENCY INVERT ER NOUMENON PARAMET ER GROUP
..................
164
6.16 FF G ROUP MONITORING V ARIABLE GROUP
..................................................
165
CHAPTER
CHAPTER
CHAPTER
CHAPTER 7
7
7
7 COMMUNICATION
COMMUNICATION
COMMUNICATION
COMMUNICATION PROTOCOL
PROTOCOL
PROTOCOL
PROTOCOL
....................................................
....................................................
....................................................
....................................................
170
170
170
170
7.1 C OMMUNICATION ALLOCATION
....................................................................
170
7.2 P ROT OCOL FORM
.......................................................................................
170
7.3 P ROT OCOL FORM INSTRUCTION
....................................................................
170
7.3.1 Data type
.......................................................................................
170
7.3.2 Salve machine address
...................................................................
170
7.3.3 Read function code
........................................................................
171
7.3.4 Write operation function code
.......................................................
175
7.3.5 Abnormal Responding Function Code
............................................
178
7.4 CRC PARITY
..............................................................................................
181
CHAPTER
CHAPTER
CHAPTER
CHAPTER 8
8
8
8 TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
.....................................................................
.....................................................................
.....................................................................
.....................................................................
182
182
182
182
8.1 F AULT S AND ACTIONS
..................................................................................
182

Content SVF-G7 Series Frequency Inverter Operation Manual
III
8.2 C OMMON FAULT AND HANDLING METHODS
....................................................
187
CHAPTER
CHAPTER
CHAPTER
CHAPTER 9
9
9
9 EMC
EMC
EMC
EMC
..............................................................................................
..............................................................................................
..............................................................................................
..............................................................................................
189
189
189
189
9.1 D EFINITION
............................................................................................
189
9.2 EMC S TANDARD INTRODUCTION
...............................................................
189
9.3 EMC D IRECTION
.......................................................................................
190
9.3.1 Harmonic Influence
........................................................................
190
9.3.2 EMI and Installation Notes
.............................................................
190
9.3.3 Handle interference of the environment to interfere the drive
......
190
9.3.4 Handle interference generated by drive to interfere the environment
................................................................................................................
190
9.3.5 Leakage current and its processing system
....................................
191
9.3.6 Note of installing EMC input filter in the power input side
............
192
APPENDIX
APPENDIX
APPENDIX
APPENDIX 1
1
1
1 INSTRUCTION
INSTRUCTION
INSTRUCTION
INSTRUCTION OF
OF
OF
OF STANDARD
STANDARD
STANDARD
STANDARD EXPANSION
EXPANSION
EXPANSION
EXPANSION CARD
CARD
CARD
CARD SC-EXT1-IO
SC-EXT1-IO
SC-EXT1-IO
SC-EXT1-IO
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
194
194
194
194
APPENDIX
APPENDIX
APPENDIX
APPENDIX 2
2
2
2 INSTRUCTION
INSTRUCTION
INSTRUCTION
INSTRUCTION OF
OF
OF
OF RELAY-OUTPUT
RELAY-OUTPUT
RELAY-OUTPUT
RELAY-OUTPUT EXPANSION
EXPANSION
EXPANSION
EXPANSION CARD
CARD
CARD
CARD
SC-EXT2-R
SC-EXT2-R
SC-EXT2-R
SC-EXT2-R
........................................................................................................
........................................................................................................
........................................................................................................
........................................................................................................
198
198
198
198
APPENDIX
APPENDIX
APPENDIX
APPENDIX 3
3
3
3 INSTRUCTION
INSTRUCTION
INSTRUCTION
INSTRUCTION OF
OF
OF
OF MULTIFUNCTIONAL
MULTIFUNCTIONAL
MULTIFUNCTIONAL
MULTIFUNCTIONAL INPUT
INPUT
INPUT
INPUT EXPANSION
EXPANSION
EXPANSION
EXPANSION CARD
CARD
CARD
CARD
SC-EXT3-S
SC-EXT3-S
SC-EXT3-S
SC-EXT3-S
........................................................................................................
........................................................................................................
........................................................................................................
........................................................................................................
200
200
200
200

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
2

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
1
Chapter
Chapter
Chapter
Chapter 1
1
1
1 Safety
Safety
Safety
Safety and
and
and
and Notes
Notes
Notes
Notes
1.1 Safety Definition
In this manual, safety precautions divide the following two categories:
!
Danger
Operations without following instructions can cause personal injury or
death.
!
Attention
Operations without following instructions can cause personal injury or
damage to product or other equipment.
1.2 Safety notes
!
Danger
Before Installations
1. Please don't operate the
damaged and incomplete drive.
O therwise there is a danger of
human injury 2.Please use the
insulation motor which class is
above B , otherwise, there is
electric shock danger.

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
2
!
Danger
Installing
1. Please install the drive on
fire-retardant material, r eserve
the drive away from combustible
materials , otherwise, it would
cause fire alarm!
2.If more than two drives are
parked in the same cabinet, in
order to the cooling effect of
Drive, please note that
installation position and refer
to chapter 3 which is
mechanical and electrical
installation.
3. Don't allow Conductors
and screws to fall inside the
drive, otherwise there is a
danger of damage.

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
3
!
Danger
Wiring
1. Only the electrical engineering
personnel shall wire the drive ,
otherwise, there is electric shock
danger.
2. Between the drive and power
must have circuit a breaker ,
otherwise, it would cause fire
alarm!
3. Never wire the drive unless the
input AC supply is totally
disconnected , otherwise, there is
electric shock danger.
4. The drive must be properly
earthed to reduce electrical
accident , otherwise, there is
electric shock danger.
5. Don ’ s connect the input
power supply to output
terminals U, V and W ,
otherwise, it would cause the
damage of frequency
inverter.
6. Wiring must accord with
EMC requirements and the
region safety standards.
Please refer to the manual
that advised about using wire
line diameter. Otherwise
accidents may occur.
connected into DC between bus (+)
danger of fire.
Before power on
Reserve supply voltage and rated
voltage of the drive in the same level,
sure the input and output wiring
and check buffer circuit.
Otherwise, the drive may be damaged.
2. Before power on, please make
sure that the cover is installed.
Otherwise, can lead to electric
shock.
3. The products already have
done a penetrative test, if
redone, it may cause
accident.
4. Please refer this manual
provided circuit to correct
connection peripheral
accessories, to reduce
electrical accident.

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
4
!
Danger
After power on
1. After power on, please don ’ t
open the cover of the drive, in
order to avoid electric shock.
2. Don ’ t touch the drive and
peripheral circuit with wet hands.
3. Don't touch the drive ’ s
terminals including the control
terminals with bare hands.
4. Initial power on, the drive is
checking the safety of its external
circuit with strong electric, so
please don't touch the drive ’ s
terminals U 、V、W and the
motor ’ s terminals.
5. When the motor is
parameters. Otherwise accidents may
6. Please don't randomly
change the factory
parameters of the drive,
otherwise, will damage the
drive.
Operating
1. Please Reserve far away from
it, if restart the drive. Otherwise
there is human injury.
2. Don ’ t touch the cooling fans
and discharge resistance with
bare hands to test temperature.
Otherwise, has burn dangerous.
3. Amateur technicians do not
detect the signal during
operating. O r it may cause a
personal injury or damaged.
4. Don't allow matters to fall
inside the running drive,
otherwise it may be
damaged;
5. Please don ’ t use contactor
to control drive start-stop, in
order to reduce the damage.

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
5
!
Danger
Maintaining
1. Please don ’ t charge for
equipment repair and
maintenance. Otherwise, have
shocking danger;
2. Perform the maintenance and
repair job after confirming that
the DC Bus voltage is below
36V, in order to avoid electric
shock.
3. Unprofessional trained
personnel do not charge the
repair and maintenance job.
Otherwise caused human injury
or damaged.
1.3 Notes
�
Insulation checking of m otors
Before using the drive, the insulation of the motors must be checked,
especially, if it is used for the first time, if it has been stored
for a long time or regularly check. This is to reduce the risk of the
drive from being damaged by the poor insulation of the motor. When
checking ,must make sure the motors and the drive is separated, Please
use 500V insulation tester to measure the insulating resistance. It
should not be less than 5M Ω .
�Motor thermal protection
If the ratings of the driven motor are not in compliance with the drive,
especially, the drive rated power more than motor rated power, be sure

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
6
to adjust the protective threshold or to install thermal relay before
the motor to ensure the motor is properly protected.
�Operate a bove power frequency
This drive can provide 0Hz~600Hz output frequency. If the user need
to run the motor above rated frequency, please consider the
affordability of mechanical devices.
�
The mechanical device r esonance
T he drive system may encounter mechanical resonance with the load when
operating within certain band of output frequency. Skip frequencies
have been set to avoid it.
�
Motor heat and n oise
The output voltage is in PWM wave with some harmonics. Therefore,
temperature rise, noise and vibration of motor are higher than 50Hz.
�Varistors o r c apacitors u sed t o i mprove t he p ower f actor
Don't connect any varistor or capacitor to the output terminals of the
drive, because the drive's output voltage waveform is PWM, otherwise
tripping or damaging of components may occur; in addition, don't
install circuit breaker or contactor at the output side of the drive.
�Circuit b reakers c onnected to the input/output of the drive
If contactor is connected between the input power supply and the
motor, Please don ’ t use contactor to control drive start-stop. If it must
be done, interval time should not less than one-hour. If frequently
charging and discharging, the life of the internal capacitance of the
drive will be reduced. If circuit breaker or contactor needs to be
connected between output side of the drive and the motor, be sure to
operate these circuit breakers or contactor when the drive has no
output, to avoid damaging of the drive.
�Using outside the range of rated voltage
The drive is unsuitable to be used out of the specified range of

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
7
operation voltage; otherwise, it may be damaged. If need, please use
suitable voltage regulation device.
�Change from 3-phase to 2-phase
It is not recommended to change the drive from 3-phase input to 2-phase
input. Otherwise it will lead to failure or damaged.
�
Protection against lightning strike
There are transient surge suppressors inside the Drive which protects
it against lighting strike. Department for frequent thunder and
lightning, users should install the drive front-end protection.
�Derating due to a ltitude
Derating must be considered when the drive is installed at high altitude,
greater than 1000m. Because of the thin air, the cooling effect of drive
is deteriorated. Please contact our technical advice in this case.
�Special usage
If users need the wiring diagram, such as common DC bus, without in
the manual, Please consult our company.
�Disposing u nwanted d rive
The capacitors may explode when they are burnt. Poisonous gas may be
generated when the plastic parts like front covers are burnt. Disposing
method: Please dispose the Drive as industrial waste.
Adaptive motor
1) If the motor isn ’ t the four-pole squirrel-cage asynchronous induction
motor. Please select the drive according to the rated current of the motor.
I f you choose the permanent magnet synchronous motor, please consult our
company.
2) Because the cooling fan of non-inverter mo tor is coaxial connection wit h
its rotor shaft connection, if the speed of the motor is reduced, the cooling
effect of the fan is deteriorating, if the motor may become overheating in
the situation, please change to inverter motor or install another fan.

Chapter 1 Safety and Notes SVF-G7 Series Frequency Inverter Operation Manual
8
3) The drive has built-in adaptive motor standard parameters, According to
the actual situation, identify parameters or modify default of the motor
to meet the actual value as far as possible; otherwise, it will affect the
operating results and the protection of property.
4) Because the cable or the inside motor short circuit can cause the drive
alarm, and even explosion. Therefore, the initial installing motor and cable
must be done insulating short-circuit test. Note, when doing the test, make
sure the drive and the tested part be completely disconnected.

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
9
Chapter
Chapter
Chapter
Chapter 2
2
2
2 Specifications
Specifications
Specifications
Specifications and
and
and
and Selection
Selection
Selection
Selection
2.1 Naming R ule
SVF -G7-G 7.5/P 11 T 4 B
CHINSC VFD Series
Code
Type
G
General type
Adapter motor power
Corresponding relation
Code
Adapter motor
power （ KW ）
0 . 4 …… 450
0 . 4 …… 450
Code Braking Unit
Null
B
Null
Including braking unit
Code
Input voltage level
T 4
Three phase 380 v
± 15 %
Fan & pump type
P
F igure 2-1 Naming rule
2.2 Nameplate
MODEL : SVF - G 7 - G 7 . 5 / P 11 T 4 B
INPUT : AC 3 PH 380 V ± 15 % 50 / 60 Hz
OUTPUT : AC 3 PH 0 - 380 V 0 - 600 HZ 1 7 / 2 5 A
S / N :
CHINSC ELECTRIC （ CHINA ） CO . , LTD
Figure 2-2 Nameplate

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
10
2.3 Model and T echnical P arameter
s
T able2-1 SVF-G7 frequency inverter model and technical parameters
VFD Model Input V
P
capacity(KVA)
Input
C(A)
Output
C(A)
Motor
P(KW)
SVF-G7-G0.4T4B
3Phase
380V
Range ：
± 15%
1.0 2.4 1.2 0.4
SVF-G7-G0.75T4B 1.5 3.4 2.5 0.75
SVF-G7-G1.5T4B 3.0 5.0 3.7 1.5
SVF-G7-G2.2T4B 4.0 5.8 5.0 2.2
SVF-G7-G3.7/P5.5T4B 5.9 10.5 9/13 3.7/5.5
SVF-G7-G5.5/P7.5T4B 8.9 14.6 13/17 5.5/7.5
SVF-G7-G7.5/P11T4B 11.0 20.5 17/25 7.5/11
SVF-G7-G11/P15T4B 17.0 26.0 25/32 11/15
SVF-G7-G15/P18.5T4 21.0 35.0 32/37 15/18.5
SVF-G7-G18.5/P22T4 24.0 38.5 37/45 18.5/22
SVF-G7-G22/P30T4 30.0 46.5 45/60 22/30
SVF-G7-G30/P37T4 40.0 62.0 60/75 30/37
SVF-G7-G37/P45T4 57.0 76.0 75/90 37/45
SVF-G7-G45/P55T4 69.0 92.0 90/110 45/55
SVF-G7-G55/P75T4 85.0 113.0 110/150 55/75
SVF-G7-G75/P93T4 114.0 157.0 150/176 75/93
SVF-G7-G93/P110T4 134.0 180.0 176/210 93/110
SVF-G7-G110/P132T4 160.0 214.0 210/253 110/132
SVF-G7-G132/P160T4 192.0 256.0 253/300 132/160
SVF-G7-G160/P185T4 231.0 307.0 300/340 160/185
SVF-G7-G185/P200T4 242.0 350.0 340/380 185/200
SVF-G7-G200/P220T4 250.0 385.0 380/420 200/220
SVF-G7-G220/P250T4 280.0 430.0 420/470 220/250
SVF-G7-G250/P280T4 355.0 468.0 470/520 250/280
SVF-G7-G280/P315T4 396.0 525.0 520/600 280/315
SVF-G7-G315/P350T4 445.0 590.0 600/640 315/350
SVF-G7-G350/P400T4 500.0 665.0 640/690 350/400

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
11
SVF-G7-G400/P450T4 565.0 785.0 690/800 400/450
2.4 Technical Specification
Table2-2 SVF-G7 Frequency Inverter Technical Specifications
Item Specification
Input Rated voltage T4 series: Three phase 380v, ± 15%
Frequency 50/60Hz ± 5%
Output Voltage Three phase 0-380V
Frequency 0-600Hz
Overload
ability
Type G: 150% rated current for 1
minute, 180% rated current for 2
second;
Type P: 120% rated current for 1
minute, 150% rated current for 2
second.
Heat
D issipation
Cooling type Forced Cooling
Temperature
protection
Heatsink temperature >8 5 ℃trip
protection against overheat
Fan control
Heatsink temperature> 50 ℃, fan
forced operation, frequency inverter
continue work
Control
Performance
Control mode
Open-loop vector control, V/F
control, Torque Control
Start torque Open-loop vector control: 0.5Hz
180%;

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
12
VF control ：0.5Hz 150%
Speed range Open-loop vector control: 1:200;
VF control ：1:100
Speed control
precision
Open-loop vector control: ± 0.2%;
VF control ：± 0.5%
Torque control
precision
Open-loop vector control: ± 5%
T orque
response time
Open-loop vector control: <20ms
Function Channel of
operation
command
Keyboard control ，terminal control ，
communication control
Start mode D irect start, DC injection braking
before start, speed tracking before
start
DC injection
braking
Start DC injection braking, stop DC
injection braking
Dynamic
braking
Built-in braking unit < = 1 5 kw, get
external braking unit>1 8.5 kw
Frequency
source choice
Keyboard digital frequency setting,
analog V1 setting, analog V2
setting, Keyboard potentiometers
setting, Multiple speed operation
setting,
PID control setting,
telecommunications setting, PLC
program operation setting, HDI
High Speed Pulse setting

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
13
Main and
auxiliary
frequency
combination set
Just main frequency setting, just
auxiliary frequency setting,
QUICK/JOG or terminal switching
selection, main frequency +
auxiliary frequency, main frequency
- auxiliary frequency, maximum,
minimum, could realize
Frequency overlay and fine
adjustment function
Frequency
resolution
Keypad setting:0.01Hz; Analog
setting: 0.1 %
Carrier
frequency
0.5Khz~15.0Khz, both PWM mode
could be chosen
Acc/Dec time 0.1~3600.0s
Multiple VF
curve
Linear V/F curve, 2.0 times power
drop torque V/F curve, custom V/F
percentage (can realize manual
energy saving control), multipoint
VF curve.
Built-in PID Built-in PID controller, apply to
process control occasion such as
water or gas supply. Meanwhile the
sleep wake up function could save
energy to the great extent possible.
Simple PLC
operation
16 segment goal setting, frequency
or mode of percentage setting could
be chosen, each segment of
operation time and direction could

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
14
be set separately, and realize timing
stop function.
Speed tracking, Cut-off restart, fault
recovery, Automatic torque
promotion, the motor ’ s parameters
auto-learning , Pendulum frequency
operation, hopping frequency,
UP/DOWN control, AVR,
Over - voltage stalling protection,
rapid current-limiting, Instant power
down and drop frequency operation
Input
Output
Signal
Analog input V1:0~10V
V2:4~20 mA or 0~10V, Select
through JP2 jumper
Keyboard potentiometer input:
0~5V
Analog output FM1:0~10V or 0~20 mA , Select
through JP9 jumper
FM2:0~10V or 0~20 mA , Select
through JP10 jumper . Need the
support of SC-EXT1- IO expansion
cards
Digital input Standard configuration S1~S6, can
expand S7~S10 through
SC-EXT3-S expansion cards. A total
of 30 kinds of function could be
selected.
Digital output Standard configuration 2 channel

Chapter2 Specifications and Selection SVF-G7 Series Frequency Inverter Operation Manual
15
including SP1, SP2 electrode
output;
1 channel relay output T1;
Expanding 4 channel relay output
T2~T5 through SC-EXT2-R
expansion cards.
High-speed
pulse input
HDI: 0~50.0Khz, support by
expansion cards SC-EXT1- IO
High-speed
pulse output
HDO: 0~50.0Khz, support by
expansion cards SC-EXT1- IO
Communication
Port
Communication
protocol
Based o n RS485 hardware, support
standard MODBUS protocol, should
match expansion cards
SC-EXT1- IO
Expansion
C ards
3 type
expansion cards
Standard expansion cards
SC-EXT1- IO, Relay expansion
cards SC-EXT2-R (can realize one
drives 2 function) , Multifunctional
input expansion card SC-EXT3-S,
refer to the explanation in Appendix.
Display
F unctions
Five digital
tube display
Can monitor the operation state of
frequency inverter flexibly and
conveniently; can set normal
monitoring parameters separately
when operation and stop .
Protect ion
F unction
25 kinds of
protection
function s
I ncluding over - voltage ,
o ver - current, overheat, overload,
under-voltage, short circuit , ground