Shihlin electric SC3-043-7.5K/11KF User manual

Shihlin Electric General Inverters
SC3 Series
User Manual
High price–performance ratio
SC3-021-0.2K～2.2K
SC3-023-0.2K～3.7K
SC3-043-0.4K～5.5K
SC3-043-7.5K/11KF~18.5K/22KF
SC3-043-22K
MANUAL GUIDE
1
DELIVERY CHECK
2
INVERTER
INTRODUCTION
3
BASIC OPERATION
4
PARAMETER
DESCRIPTION
5
INSPECTION AND
MAINTENANCE
6
APPENDIX
7

Safety instructions
MANUAL GUIDE 1
1. MANUAL GUIDE
1.1 Safety instructions
Thank you for choosing Shihlin inverters SC3 series. This user manual introduces how to use the product correctly.
Please read the user manual carefully before using the product. In addition, please use the product after understanding
the safety instructions.
Safety Instructions
Installation, operation, maintenance and inspection must be performed by qualified personnel.
In this instruction, the safety instruction levels are classified into "Warning" and "Caution".
Warning: Incorrect handling may cause hazardous conditions, resulting in death or severe injury.
Caution: Incorrect handling may cause hazardous conditions, resulting in medium or slight injury, or may cause only
material damage.
While the inverter power is ON, do not open the front cover or the wiring cover. Do not run the inverter with the front
cover or the wiring cover removed. Otherwise you may access the exposed high voltage terminals or the charging
part of the circuitry and get an electric shock.
It is crucial to turn off the inverter power before any wiring installation or inspection is made. Before the inverter
screen is OFF, which indicates that there is still high voltage in it, please do not touch the internal circuit and
components.
The inverter must be connected to the ground properly.
Do not operate or touch the heat sink or handle the cables with wet hands. Otherwise you may get an electric shock.
Do not change the cooling fan while power is ON. It is dangerous to change the cooling fan while power is ON.
Voltage applied to each terminal must be the one specified in the user manual; otherwise, failure or damage may
be caused.。
Do not operate a voltage-resistant test for the parts inside the inverter because semiconductors in inverter may be
easily damaged due to high-voltage breakdown.
Do not touch the inverter because the temperature of the inverter is very high when it is powered on or right after
disconnecting the power supply; only touch the built-in keypad part. Otherwise, burn may occur.
Failure or damage may be caused due to wrong wiring.
Do not reverse the polarities (+, -) by mistake, failure or damage may be caused.
Please install the inverter on nonflammable walls without holes (to avoid contacts with the cooling fin of the inverter
from the back). If the inverter is installed on or close to flammable objects it may cause a fire.
Please disconnect the inverter from power supply in case of failure. Overload current passes through the inverter
continuously may cause a fire.
Other Precautions:
*1 If the product is ultimately used as a military unit, or when the product is used for weapons manufacturing, etc., this
product will be included in the export product control object specified in the “Foreign Trade Law of PRC". When
exporting, strict inspection and export procedures are required.
*2 In this manual, the case or the safety cover will be remove, and the description will be made in graphics and text in
order to explain the product in detail. When operating, to ensure safety be sure to install the case and wire correctly
according to the regulations referred in manual.
*3 Graphics in the manual are slightly different from the actual product for the convenience of illustrating, this will not
affect customer rights.
*4 To improve our products, parameters and contents may be modified in the future, and the contents of this manual
are subject to change without notice. Please download the latest version from Shihlin website (www.sseec.com.cn or
www.seec.com.tw).
Warning
Caution

Table of contents
MANUAL GUIDE 2
1.2 Table of contents
User Manual ............................................................................................................................................................................ 1
1. MANUAL GUIDE ................................................................................................................................................................ 1
1.1 Safety instructions.................................................................................................................................................... 1
1.2 Table of contents...................................................................................................................................................... 2
1.3 Definitions of terminologies................................................................................................................................... 10
2. DELIVERY CHECK.......................................................................................................................................................... 11
2.1 Nameplate instruction............................................................................................................................................ 11
2.2 Type instruction ...................................................................................................................................................... 11
2.3 Order code description.......................................................................................................................................... 11
3. INVERTER INTRODUCTION......................................................................................................................................... 12
3.1 Electric specification .............................................................................................................................................. 12
3.1.1 440V series three-phase..................................................................................................................12
3.1.2 220V series three-phase..................................................................................................................13
3.1.3 220V series single phase.................................................................................................................14
3.2 General specification ............................................................................................................................................. 15
3.3 Appearance and dimensions................................................................................................................................ 16
3.3.1 Frame A ...........................................................................................................................................16
3.3.2 Frame B/C/D ....................................................................................................................................17
3.4 Name of each component..................................................................................................................................... 18
3.4.1 Frame A/B........................................................................................................................................18
3.4.2 Frame C/D .......................................................................................................................................18
3.5 Installation and wiring............................................................................................................................................ 19

Table of contents
MANUAL GUIDE 3
3.5.1 Transportation..................................................................................................................................19
3.5.2 Stockpile...........................................................................................................................................19
3.5.3 Installation notice .............................................................................................................................19
3.5.4 EMC installation instructions............................................................................................................22
3.6 Peripheral devices.................................................................................................................................................. 23
3.6.1 System Wire Arrangement...............................................................................................................23
3.6.2 No-fuse breaker and magnetic contactor ........................................................................................24
3.6.3 Regeneration brake resistor ............................................................................................................25
3.7 Terminal wire arrangement................................................................................................................................... 26
3.7.1 Main circuit Terminals......................................................................................................................27
3.7.2 Main circuit wiring and terminal specification ..................................................................................28
3.7.3 Ground .............................................................................................................................................29
3.7.4 RFI filter............................................................................................................................................29
3.7.5 Control circuit...................................................................................................................................30
3.8 Replacement procedure of fan............................................................................................................................. 34
3.8.1 Frame A/B........................................................................................................................................34
3.8.2 Frame C/D .......................................................................................................................................34
4. BASIC OPERATION ........................................................................................................................................................ 35
4.1 Component name of keypad................................................................................................................................. 35
4.2 Operation modes of inverter................................................................................................................................. 36
4.2.1 Flow chart for switching operation mode.........................................................................................37
4.2.2 Flow chart for switching built-in keypad working mode...................................................................37
4.2.3 Operation flow chart for monitoring mode .......................................................................................38

Table of contents
MANUAL GUIDE 4
4.2.4 Operation flow chart for frequency setting.......................................................................................38
4.2.5 Operation flow chart for parameter setting......................................................................................39
4.2.6 Operation flow chart for HELP mode...............................................................................................39
4.3 Basic operation steps for different modes.......................................................................................................... 40
4.3.1 Basic operation steps for PU mode（00-16(P.79)＝0 or 1）.........................................................40
4.3.2 Basic operation steps for external mode (00-16(P.79)＝0 or 2) .....................................................40
4.3.3 Basic operation steps for JOG mode (00-16(P.79)＝0 or 1)...........................................................41
4.3.4 Basic operation steps for communication mode (00-16(P.79)＝3) .................................................41
4.3.5 Basic operation steps for combined mode 1 (00-16(P.79)＝4).......................................................41
4.3.6 Basic operation steps for combined mode 2 (00-16(P.79)＝5).......................................................42
4.3.7 Basic operation steps for combined mode 3(00-16(P.79)＝6)........................................................42
4.3.8 Basic operation steps for combined mode 4(00-16(P.79)＝7)........................................................43
4.3.9 Basic operation steps for combined mode 5(00-16(P.79)＝8)........................................................43
4.4 Operation................................................................................................................................................................. 44
4.4.1 Check and preparation before running............................................................................................44
4.4.2 Running methods.............................................................................................................................44
4.4.3 Test run............................................................................................................................................45
5. PARAMETER DESCRIPTION ....................................................................................................................................... 46
5.1 System parameter group 00................................................................................................................................. 46
5.1.1 Inverter information..........................................................................................................................49
5.1.2 Parameter restoration ......................................................................................................................50
5.1.3 Parameter protection .......................................................................................................................52
5.1.4 Monitoring function...........................................................................................................................54
5.1.5 Speed display ..................................................................................................................................55

Table of contents
MANUAL GUIDE 5
5.1.6 Built-in keypad set target frequency selection.................................................................................56
5.1.7 PWM carrier frequency ....................................................................................................................57
5.1.8 Stop operation selection ..................................................................................................................58
5.1.9 Forward/reverse rotate prevent function .........................................................................................59
5.1.10 Operation mode selection..............................................................................................................59
5.1.11 Motor control mode selection ........................................................................................................60
5.1.12 Motor types selection.....................................................................................................................60
5.1.13 50/60Hz switch selection ...............................................................................................................61
5.1.14 Parameter mode setting ................................................................................................................61
5.2 Basic Parameter Group 01 ................................................................................................................................... 62
5.2.1 Limiting the output frequency ..........................................................................................................64
5.2.2 Base frequency, base voltage .........................................................................................................65
5.2.3 Acceleration/deceleration time setting.............................................................................................66
5.2.4 Torque boost V/F .............................................................................................................................68
5.2.5 Starting frequency............................................................................................................................68
5.2.6 Load pattern selection V/F...............................................................................................................69
5.2.7 JOG run............................................................................................................................................71
5.2.8 Output frequency filter time..............................................................................................................72
5.2.9 Frequency jump ...............................................................................................................................72
5.2.10 Second function .............................................................................................................................74
5.2.11 Middle frequency, output voltage of middle frequency V/F...........................................................75
5.2.12 S pattern time.................................................................................................................................76
5.2.13 Remote function acc/dec time selection........................................................................................77

Table of contents
MANUAL GUIDE 6
5.3 Analog input and output parameter group 02 .................................................................................................... 78
5.3.1 Proportional linkage gain .................................................................................................................79
5.3.3 Terminal 3-5 signal selection and processing .................................................................................80
5.3.4 Inverter rated current display level ..................................................................................................85
5.4 Digital input/ output parameter group 03 ............................................................................................................ 86
5.4.1 Digital input terminals function selection .........................................................................................89
5.4.2 Digital output terminals function selection.......................................................................................93
5.4.3 Terminal logic selection ...................................................................................................................94
5.4.4 Digital output signal delay................................................................................................................95
5.4.5 Digital input signal filter....................................................................................................................95
5.4.6 Digital input terminal enable when power on...................................................................................96
5.4.7 Output frequency detection..............................................................................................................96
5.4.8 Zero current detection......................................................................................................................97
5.5 Multi-speed parameter group 04.......................................................................................................................... 98
5.5.1 16 steps speed.............................................................................................................................. 100
5.5.2 Programmed operation mode....................................................................................................... 102
5.6 Motor parameter group 05.................................................................................................................................. 105
5.6.1 Motor parameter automatic measurement ................................................................................... 105
5.6.2 Motor parameter ........................................................................................................................... 107
5.7 Protection parameter group 06 .......................................................................................................................... 108
5.7.1 Electronic thermal relay capacity.................................................................................................. 110
5.7.3 Regenerative brake ...................................................................................................................... 112
5.7.4 Over torque detection ................................................................................................................... 113
5.7.5 Cooling fan working mode ............................................................................................................ 114

Table of contents
MANUAL GUIDE 7
5.7.6 Maintenance alarm function.......................................................................................................... 114
5.7.7 Short circuit to ground protection.................................................................................................. 114
5.7.9 Time record function..................................................................................................................... 115
5.7.11 Fire mode.................................................................................................................................... 117
5.8 Communication parameter group 07................................................................................................................. 119
5.8.1 Shihlin protocol and Modbus protocol .......................................................................................... 120
5.8.2 Communication EEPROM write selection.................................................................................... 135
5.9 PID parameter group 08...................................................................................................................................... 136
5.9.1 PID function selection ................................................................................................................... 137
5.9.2 PID parameter group .................................................................................................................... 137
5.9.3 PID pressure range setting........................................................................................................... 141
5.9.4 PID analog signal feedback loss .................................................................................................. 141
5.10 Application parameter group 10....................................................................................................................... 142
5.10.1 DC injection brake ...................................................................................................................... 144
5.10.2 Zero-speed control...................................................................................................................... 145
5.10.3 DC injection brake before start................................................................................................... 145
5.10.4 Restart mode selection............................................................................................................... 146
5.10.5 Remote setting function selection............................................................................................... 147
5.10.6 Auto reset function...................................................................................................................... 149
5.10.7 Forward and reverse rotation dead time .................................................................................... 150
5.10.8 Energy-saving function V/F ........................................................................................................ 150
5.10.9 Dwell function V/F....................................................................................................................... 151
5.10.10 Triangular wave function V/F.................................................................................................... 152

Table of contents
MANUAL GUIDE 8
5.10.11 Voltage stall action level ........................................................................................................... 153
5.10.12 Reciprocating machine function ............................................................................................... 153
5.11 Advanced parameter group 11 ........................................................................................................................ 155
5.11.1 Slip compensation gain............................................................................................................... 155
5.11.2 Torque boost filter....................................................................................................................... 155
5.11.3 Current filter ................................................................................................................................ 155
5.12 Special Adjustment Parameter Group 13....................................................................................................... 156
5.12.1 Slip Compensation V/F............................................................................................................... 156
5.12.2 Vibration inhibition ...................................................................................................................... 156
5.13 User registered parameter 15.......................................................................................................................... 157
5.13.1 User registered parameter.......................................................................................................... 158
6. INSPECTION AND MAINTENANCE........................................................................................................................... 160
6.1 Inspection item...................................................................................................................................................... 160
6.1.1 Daily inspection item..................................................................................................................... 160
6.1.2 Regular inspection items .............................................................................................................. 160
6.1.3 Ways to measure voltage, current, power on main circuit ........................................................... 161
6.1.4 Cleaning........................................................................................................................................ 161
6.1.5 Replacement parts........................................................................................................................ 162
6.2 Ways to measure voltage, current, power on main circuit............................................................................. 163
6.2.1 Selecting measurement instruments ............................................................................................ 163
6.2.2 Measurement of voltage ............................................................................................................... 163
6.2.3 Measurement of current................................................................................................................ 163
6.2.4 Measurement of power................................................................................................................. 163
6.2.5 Measurement of insulation resistance.......................................................................................... 164

Table of contents
MANUAL GUIDE 9
6.2.6 Hi-pot test...................................................................................................................................... 164
7. Appendix.......................................................................................................................................................................... 165
7.1 Appendix 1 Parameter table............................................................................................................................... 165
7.1.1 Parameter in P sequence ............................................................................................................. 165
7.1.2 Group mode.................................................................................................................................. 181
7.2 Appendix 2 Alarm code list ................................................................................................................................. 197
7.3 Appendix 3：Warning code list.......................................................................................................................... 201
7.4 Appendix 4:Troubles and solutions ................................................................................................................... 202
7.5 Appendix 5 Optional equipment......................................................................................................................... 203
7.5.1 PU301 Keypad ........................................................................................................................... 203
7.5.2 DU06 Keypad............................................................................................................................. 205
7.5.3 DU08 Keypad............................................................................................................................. 206
7.5.4 DU10 Keypad............................................................................................................................. 208
7.5.5 PU302 Keypad ........................................................................................................................... 209
7.5.6 CBL：Data transmission line (for use with the above keypads).................................................. 210
7.6 Appendix 6 European Specification Compatibility Description...................................................................... 211
8. REVISION RECORD ..................................................................................................................................................... 214

Definitions of terminologies
MANUAL GUIDE 10
1.3 Definitions of terminologies
Output frequency, target frequency, steady output frequency
The actual output current frequency of inverter is called “output frequency.”
The frequency set by user (via built-in keypad, multi-speed terminals, voltage signal, and current signal or
communication settings) is called “target frequency.”
When motor starts running, inverter output frequency will gradually accelerate to target frequency before it
finally runs steadily at the target frequency. This output frequency is called “steady output frequency.”
Parameter settings
Detail explanation on parameter settings are provided in Chapter 5. For users who are not familiar with these
settings, arbitrary adjustment of the parameter may result in abnormal operations.。All parameters can be reset to
their default values by the parameter 00-02(P.996~P.999). For setting procedures of this parameter, please refer
to 00-02(P.996~P.999) in Section 5.1.2.
The “operation mode” and “working mode” of the built-in keypad
Target frequency command source and start signal source depend on inverter operation mode. There are
nine operating modes in Shihlin inverter. Please refer to Section 4.3 for details.
Built-in keypad is used mainly for monitoring the numeric values, setting parameters and target frequency.
Please refer to Section 4.2 for details.
The difference between “terminal name” and “function name”:
Printed letters can be found near the terminals on control board and main board. They are used to distinguish
each terminal and are called “terminal name.”
For “multi-function control terminal” and “multi-function output terminal,” besides the terminal name, it is also
necessary to define the “function name.” The function name indicates the actual functions of the terminal.
When explaining the function for a terminal, the name used is its “function name”.
The difference between “on” and “turn on”:
When explaining the function for the “multi-function digital input terminal”, two words “on” and “turn on” are
often used:
The word “on” is used to indicate that the external switch of the terminal is in close state, and thus it belongs
to the description of the state.
The word “turn on” is used to describe the action that the external switch of the terminal is shut from the open
state to the close state, and thus belongs to the description of action. Similarly, the words “off” and “turn off"
belong to the above-mentioned states and actions.
P.XXX
P.XXX refers to parameter number, not page number.

Nameplate instruction
DELIVERY CHECK 11
2. DELIVERY CHECK
Each SC3 inverter has been checked thoroughly before delivery, and is carefully packed to prevent any mechanical
damage. Please check for the following when opening the package.
•Check whether the product was damaged during transportation.
•Whether the model of inverter is the same with what is shown on the package.
2.1 Nameplate instruction
Input : AC 3PH 380~480V 32A/38A 50/60Hz
Motor Rating : 15kW/18.5kW
Model : SC3-043-15K/18.5KF
S/N :
MADE IN CHINA
VER:0.180A
INVERTER
Output : AC 3PH 0~480V 27A/33A 0~650Hz
Suzhou Shihlin Electric & Engineering Co.,Ltd.
IP20
C3ANCAS18A0001
Rated inputr:ND 38A HD 32A
Model
Serial number
Rated output :ND 33A HD 27A
（Voltage, Current, Frequency）
Protection level
Suitable motor:ND 18.5kW HD 15kW
Hardware and Firmware version
2.2 Type instruction
SC3-043-7.5K/11KF - xy
None: General model
- xy:Customized or dedicated or region
Suitable motor：7.5K/11KF
Input voltage:043:440V 3-PHASE
023:220V 3-PHASE
021:220V 1-PHASE
Product series
2.3 Order code description
Example:
Inverter specification
Specification description
Order code
SC3-021-1.5K
SC3 series single phase 220V 1.5kW inverter
SNKSC30211R5K
SC3-023-1.5K
SC3 series three phase 220V 1.5kW inverter
SNKSC30231R5K
SC3-043-1.5K
SC3 series 440V 1.5kW inverter
SNKSC30431R5K

Electric specification
INVERTER INTRODUCTION 12
3. INVERTER INTRODUCTION
3.1 Electric specification
3.1.1 440V series three-phase
Frame
A
B
SC3-043-□□□K-xy
0.4
0.75
1.5
2.2
3.7
5.5
Inverter
Output
Rated output capacity (kVA)
1
2
3
4.6
6.9
9.2
Rated output current (A)
1.5
2.6
4.2
6
9
12
Applicable motor capacity (HP)
0.5
1
2
3
5
7.5
Applicable motor capacity (kW)
0.4
0.75
1.5
2.2
3.7
5.5
Overload current rating
150% 60 seconds, 200% 1 seconds (inverse-time characteristics)
Carrier frequency (kHz)
1~15kHz
Maximum output voltage
3 phase 380-480V
Power
Supply
Rated input current (A) *Note 1
3 phase 380-480V 50Hz / 60Hz
Rated input AC voltage/ frequency
3 phase 323-528V 50Hz / 60Hz
Permissible AC voltage fluctuation
±5%
Permissible frequency fluctuation
1.5
2.5
4.5
6.9
10.4
11.5
Power supply capacity (kVA)
1.8
3.2
4.3
7.1
10
14
Cooling method
No fan
Fan cooling
Weight (kg)
0.74
0.74
0.81
1.37
1.37
1.42
Frame
C
D
Model SC3-043-□K□KF-xy
7.5/11
11/15
15/18.5
18.5/22
22
Inverter
Output
HD
Rated output capacity kVA
14
18
25
29
34
Rated output current A
18
24
32
38
45
Applicable motor capacity HP
10
15
20
25
30
Applicable motor capacity kW
7.5
11
15
18.5
22
Overload current rating
150% 60 seconds (inverse-time characteristics)
Carrier frequency kHz
1~15kHz
ND
Rated output capacity kVA
18
25
29
34
46
Rated output current A
24
32
38
45
49
Applicable motor capacity HP
15
20
25
30
30
Applicable motor capacity kW
11
15
18.5
22
22
Overload current rating
120% 60 seconds (inverse-time characteristics)
Carrier frequency kHz
1~15kHz
1~10kHz
Maximum output voltage
3 phase 380-480V
Power
Supply
Rated input AC voltage/ frequency
3 phase 380-480V 50Hz / 60Hz
Permissible AC voltage fluctuation
3 phase 323-528V 50Hz / 60Hz
Permissible frequency fluctuation
±5%
Power supply capacity kVA
16
20
27
32
41
Rated input current A
HD
20
26
35
40
47
ND
26
35
40
47
54
Cooling method
Fan cooling
Weight kg
2.07
2.15
3.45
3.57
3.70
Note 1: The value indicates the current at rated output. The rated input current value is not only affected by power
transformer, input side reactor, wiring condition, but also fluctuates with the impedance of the power supply side.

Electric specification
INVERTER INTRODUCTION 13
3.1.2 220V series three-phase
Frame
A
B
Model SC3-023-□□□K-xy
0.2
0.4
0.75
1.5
2.2
3.7
Inverter
Output
Rated output capacity (kVA)
0.6
1.2
2
3.2
4.2
6.7
Rated output current (A)
1.8
3
5
8
11
17.5
Applicable motor capacity (HP)
0.25
0.5
1
2
3
5
Applicable motor capacity (kW)
0.2
0.4
0.75
1.5
2.2
3.7
Overload current rating
150% 60 seconds, 200% 1 seconds (inverse-time characteristics)
Carrier frequency (kHz)
1~15kHz
Maximum output voltage
3 phase 200-240V
Power
Supply
Rated input current (A) *Note 1
3 phase 200-240V 50Hz / 60Hz
Rated input AC voltage/
frequency
3 phase 170-264V 50Hz / 60Hz
Permissible AC voltage
fluctuation
±5%
Permissible frequency fluctuation
0.75
1.5
2.5
4.5
6.4
10
Power supply capacity (kVA)
2.1
3.2
5.6
9.3
15
20.6
Cooling method
No fan
Fan cooling
Weight (kg)
0.69
0.69
0.70
0.73
1.32
1.4
Note 1: The value indicates the current at rated output. The rated input current value is not only affected by power
transformer, input side reactor, wiring condition, but also fluctuates with the impedance of the power supply side.

Electric specification
INVERTER INTRODUCTION 14
3.1.3 220V series single phase
Frame
A
B
Model SC3-021-□□□K-xy
0.2
0.4
0.75
1.5
2.2
Inverter
Output
Rated output capacity (kVA)
0.6
1
1.5
2.5
4.2
Rated output current (A)
1.8
2.7
4.5
8
11
Applicable motor capacity (HP)
0.25
0.5
1
2
3
Applicable motor capacity (kW)
0.2
0.4
0.75
1.5
2.2
Overload current rating
150% 60 seconds, 200% 1 seconds (inverse-time characteristics)
Carrier frequency (kHz)
1~15kHz
Maximum output voltage
3 phase 200-240V
Power
Supply
Rated input current (A) *Note 1
single phase 200-240V 50Hz / 60Hz
Rated input AC voltage/
frequency
single phase 170-264V 50Hz / 60Hz
Permissible AC voltage
fluctuation
±5%
Permissible frequency
fluctuation
0.75
1.5
2.5
3.5
6.4
Power supply capacity (kVA)
5.4
6.5
9.3
15.7
24
Cooling method
No fan
Fan cooling
Weight (kg)
0.66
0.68
0.73
1.38
1.4
Note 1: The value indicates the current at rated output. The rated input current value is not only affected by power
transformer, input side reactor, wiring condition, but also fluctuates with the impedance of the power supply side.

General specification
INVERTER INTRODUCTION 15
3.2 General specification
Control method
SVPWM，V/F control，General flux vector control
Output frequency range
0~599Hz (*1)
Frequency
setting
resolution
Digital setting
Within 100Hz, the resolution is 0.01Hz
Above 100Hz, the resolution is 0.1Hz.
Analog setting
DC 0~5V or 4~20mA signal: 11 bit,
DC 0~10V signal: 12 bit.
Output
frequency
accuracy
Digital setting
Maximum target frequency±0.01%.
Analog setting
Maximum target frequency±0.1%.
Starting torque
Under General flux vector control: 180%/3Hz, 200%/5Hz
V/F characteristics
Constant torque curve, variable torque curve, five-point VF curve
Acceleration / deceleration
curve characteristics
Linear acceleration /deceleration curve, S shape acceleration /deceleration curve 1 & 2 & 3
Drive motor
Induction motor (IM)
Stalling protection
The stalling protection level can be set from 0~250%. Default value 150%
Target frequency setting
Built-in keypad setting, DC 0~5V/10V signal, DC 4~20 mA signal, multi-speed stage level setting,
communication setting.
Built-in
keypad
Operation
monitoring
Output frequency, output current, output voltage, PN voltage，electronic thermal accumulation rate,
temperature rising accumulation rate, output power, analog input signal value, digital input and
output terminal status…; alarm history 12 sets with operation details of the latest two set.
LED indicator（6）
Frequency monitoring indicator, voltage monitoring indicator, current monitoring indicator, motor
running indicator, mode switch indicator, PU mode indicator.
Communication function
RS485 communication, choose between Shihlin/Modbus communication protocol, baud rate up to
115200bps.
Protection mechanism /
alarm function
Output short circuit protection, over-current protection, over-voltage protection, under-voltage
protection, motor over-heat protection (06-00(P.9)), IGBT module over-heat protection,
communication error protection, PID error protection, memory error protection, CPU error
protection, stall prevention, module over-heat protection, input power fail protection, terminal 3-5
disconnect protection, over torque protection, Current leakage to ground protection, hardware
detect circuit error protection
Enviro
nment
Ambient temperature
-10 ~ +50℃(non-freezing) , side by side installation-10~ +40℃(non-freezing).
Ambient humidity
Below 90%Rh (non-condensing).
Storage temperature
-20 ~ +65℃。
Surrounding
environment
Indoor, no corrosive gas, no flammable gas, no flammable powder.
Altitude
Altitude below 2000 meters, when altitude is above 1,000 m, derate the rated current 2% per 100m
Vibration
Vibration below 5.9m/s²（0.6G）
Grade of protection
IP20
Over voltage level
II
Degree of
environmental pollution
2
Class of protection
Class I
International certification
CE
*1: Even if the frequency related parameter setting is greater than 599Hz, the actual output frequency upper limit is still
599Hz.

Appearance and dimensions
INVERTER INTRODUCTION 16
3.3 Appearance and dimensions
3.3.1 Frame A
unit：mm
Model
W
W1
H
H1
H2
D
S1
SC3-021-0.2K
68
56
132
120
26.5
128
5
(tighten torque
20~25kgf.cm)
SC3-021-0.4K
SC3-021-0.75K
SC3-023-0.2K
SC3-023-0.4K
SC3-023-0.75K
SC3-023-1.5K
SC3-043-0.4K
SC3-043-0.75K
SC3-043-1.5K

Appearance and dimensions
INVERTER INTRODUCTION 17
3.3.2 Frame B/C/D
unit：mm
Model
W
W1
H
H1
H2
D
S1
SC3-021-1.5K
136
125
147
136
26.5
128
5
(tighten torque
20~25kgf.cm)
SC3-021-2.2K
SC3-023-2.2K
SC3-023-3.7K
SC3-043-2.2K
SC3-043-3.7K
SC3-043-5.5K
SC3-043-7.5K/11KF
132
115.6
215
198.6
Note 1
150
6.2
(tighten torque
20~25kgf.cm)
SC3-043-11K/15KF
SC3-043-15K/18.5KF
175
158.6
260
243.6
Note 1
180
6.2
(tighten torque
20~25kgf.cm)
SC3-043-18.5K/22KF
SC3-043-22K
Note1: Frame C and frame D do not have this feature, that is, they do not support DIN rail installation
H1 H
S1
W1
W
D
H2

Name of each component
INVERTER INTRODUCTION 18
3.4 Name of each component
3.4.1 Frame A/B
Fan lid
Product nameplate
Upper lid
Control circuit sticker
Lower lid
External keypad connector
Mounting holes
3.4.2 Frame C/D
Fan lid
Product nameplate
Upper lid
Control circuit sticker
External keypad connector
Mounting holes
foundation
Warning nameplate
Main-circuit sticker
membrane switch
knobne switch