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HV100 Series Frequency Inverter. User Manual (V4.0) - page 1

Contents

Chapter I Safety Information

1.1 Marks and definitions of safety information

1.2 Use range

1.3 Installation Environment

1.4 Installation safety matters

1.5 Use safety matters

Chapter II Standard Specifications of Products

2.1 Technical specifications

2.2 Inverter model description

2.3 Size of chassis and keyboard

2.4 Rated current output meter

2.5 Selection of Braking Resistance Table

Chapter III Storage and Installation

3.1 Storage

3.2 Installation site and environment

3.3 Installation space and direction

Chapter IV Wiring

4.1 Main circuit wiring diagram

4.2 Connecting terminal Figure

4.2.1 The function description of the main circuit terminal is as follows:

4.2.2 The terminal for controlling loop

4.2.3 Jumper settings of main control board

4.3 Basic wiring diagram

4.4 Matters needing attention for Wiring

4.4.1 Main circuit wiring

4.4.2 Control circuit wiring (signal line)

4.4.3 Grounding wire

4.5 Matters needing attention for specific application

4.5.1 Type selection

4.5.2 Matters needing attention in motor use

Chapter V Operation and display

5.1 keypad description

5.1.1 Diagram of keypad

5.1.2 Key Description

5.1.3 Description of function indicator lamp

5.2 Operation process

5.21 Parameter setting

5.2.2 Fault reset

5.2.3 Self-learning of motor parameters

Chapter VI Functions and Parameter Table

Chapter VIII EMC (Electromagnetic Compatibility)

8.1 Definitions

129

8.2 Introduction to EMC Standards

126

8.3 EMC guidance

126

8.3.1 Influence of harmonics:

126

8.3.2 Electromagnetic interference and installation precautions:

126

8.3.3 Treatment method of interference of peripheral electromagnetic equipment

126

8.3.4 Measures to deal with interference caused by inverter to peripheral equipment:

126

8.3.5 Leakage current and treatment:

127

8.3.6 Precautions for installing EMC input filter at power input end:

130

Chapter IX Fault Diagnosis and Countermeasures

128

9.1 Fault Alarm and Countermeasures

128

9.2 Exception handling

130

Appendix 1: Modbus communication protocol

131

Appendix 2: Description of macro parameter setting

144

Appendix 3: Parameter description of soft start water supply of three pump circulation

144

Warranty agreement

146

Chapter I Safety Information

1.1 Marks and definitions of safety information

The safety clauses described in this User‘s manual are very important, which can ensure you to use the inverter safely,

and prevent yourself or the people around you from being hurt and the property in the working area from being damaged.

Please be fully familiar with the following icons and meanings, and be sure to observe the precautions indicated, and then

continue to read this user‘s manual.

Danger

This symbol indicates that failure to operate as required may cause death or serious injury.

Warning

This symbol indicates that if you do not operate as required, it will cause moderate personal injury or minor injury and

certain material loss.

Attention

This symbol indicates matters needing attention in operation or use.

Prompt

This symbol prompts the user with some useful information.

The following two icons are supplementary descriptions of the above signs:

Prohibition

It means something that must not be done.

Enforcement

Indicates something that must be done.

1.2. Use range

Attention

This inverter is suitable for general industrial three-phase AC asynchronous motors.

Warning

● And in equipment (nuclear power control equipment, aerospace equipment, transportation equipment, life support

system, safety equipment, weapon system, etc.) which may threaten life or harm human body due to inverter failure or

working error, please consult our company in advance for special purpose.

● This product is manufactured under the strict supervision of the quality management system, but safety protection

measures must be taken to prevent the inverter from expanding the scope of the accident when it is used in important

equipment.

1.3 Installation Environment

● is installed indoors and in well-ventilated places, and should be installed vertically to ensure the best cooling effect.

additional ventilation devices may be required in horizontal installation.

● The environmental temperature should be within the range of-10 ~ 40℃. If the temperature exceeds 40℃, please

remove the upper cover. If the temperature exceeds 50℃, it needs external forced heat dissipation or derating. Users are

advised not to use the inverter in such a high temperature environment, because this will greatly reduce the service life of

the inverter.

● The environmental humidity is required to be lower than 90%, and there is no condensation of water droplets.

● it is installed in a place with vibration less than 0.5G to prevent falling damage. The inverter is not allowed to suffer

sudden impact.

● it is installed in an environment far away from electromagnetic fields and free of inflammable and explosive

substances.

1.4 Installation safety matters

Danger

● Do not work with wet hands.

● It is strictly forbidden to carry out wiring operations without completely disconnecting the power supply.

● When the inverter is powered on, please do not open the cover or carry out wiring operation, otherwise there is a

danger of electric shock.

● When wiring and inspection are carried out, it must be carried out 10 minutes after the power supply is turned off,

otherwise there is a danger of electric shock.

Warning

● Do not install inverters with damaged or missing components to avoid personal accidents and property losses.

● The main circuit terminal must be firmly connected with the cable, otherwise the inverter may be damaged due to

poor contact.

● For the sake of safety, the grounding terminals of inverters must be grounded reliably. To avoid the influence of

grounding common impedance interference, multiple inverters should be grounded by one-point grounding, as shown in

Figure 1-1.

Inverter

Correct

grounding

mode

Grounding bus (connected at the same point)

Figure 1-1

Prohibition

● It is forbidden to connect the AC power supply to the output terminals U, V and W of the inverter, otherwise the

inverter will be damaged, as shown in Figure 1-2.

Prohibition

Power

Inverter

Figure 1-2

Enforcement

● When it is on the input power supply side of the inverter. Be sure to configure a fuse-free circuit breaker for circuit

protection to prevent the accident from expanding due to the failure of the inverter.

Attention

● The electromagnetic contactor should not be installed on the output side of the inverter, because the contactor will

turn on and off when the motor is running, which will produce operating overvoltage and cause damage to the inverter.

However, configuration is still necessary for the following three situations:

The frequency conversion governor used for energy-saving control, the system often works at rated speed, and in

order to realize economic operation, it is necessary to cut off the inverter.

Participate in important process flow, cant shut down for a long time, and need to switch between various control

systems to improve system reliability.

When one inverter controls multiple motors. Users should pay attention to the fact that the contactor must not act

when the inverter has output!

1.5 Use safety matters

Danger

● Do not operate with wet hands.

● For inverters with stored for more than one year, the voltage regulator should be used to gradually increase the

voltage to the rated value when powering on, otherwise there is danger of electric shock and explosion.

●Don’t touch the inside of the inverter after it is powered on, and don’t put bars or other objects into the inverter,

otherwise it will cause electric shock death or the inverter can’t work normally.

●Please do not open the face cover when the inverter is powered on, otherwise there is a danger of electric shock.

● Use the restart function after power failure with caution, otherwise it may cause personal injury or death.

Warning

●If it runs over 50Hz, it is necessary to ensure the speed range of motor bearings and mechanical devices in use.

●Mechanical devices requiring lubrication, such as reduction boxes and gears, should not run at low speed for a long

time, otherwise their service life will be shortened and even equipment will be damaged.

● When the ordinary motor runs at low frequency, it must be derated because of its poor heat dissipation effect. If it is a

constant torque load, it must adopt the forced heat dissipation mode of motor or adopt a special frequency conversion

motor.

● Please cut off the input power of the inverter when it is not used for a long time, so as to avoid the inverter being

damaged or even causing fire due to foreign matter entering or other reasons.

● Since the output voltage of the inverter is PWM pulse wave, please do not install capacitors or surge current

absorbers (such as piezoresistors) at its output end, otherwise the inverter will fail and trip, and even the power

components will be damaged. If installed, be sure to remove it. As shown in figure 1 -3.

Pro

hibit

Surge current absorber

ion

Inverter

Prohibition

Power factor compensation capacitor

Figure 1-3

Attention

● Before the motor is used for the first time or placed for a long time before reuse, the motor insulation shall be

checked and the measured insulation resistance shall be ensured to be no less than 5MΩ.

● If you need to use the inverter outside the allowable working voltage range, you need to configure a step-up or

step-down device for transformation processing.

● In the area where the altitude exceeds 1,000 meters, the heat dissipation effect of the inverter will deteriorate due to

the thin air, so it needs to be derated. Generally, it needs to be derated by about 10% for every 1000m increase.

Chapter II Standard Specifications of Products

2.1 Technical specifications

Rating Voltage ，

Three-phase (G3/G4 series) 380V-480V, 50/60HZ

Frequency

Single&Three-phase (G1/G2 series)

220 V: 50/60 Hz

Input

Three-phase (G3 series) : AC 380~440 (-15%~+10%)

Allowable range

Three-phase (G4 series) : AC 460~480 (-15%~+10%)

of voltage

Single&Three-phase (G1/G2 series) : AC220V±15%

Voltage

G1/G2 series; 0～220V, G3 series; 0～440 V, G4 series; 0～480 V

Frequency

Low frequency mode: 0 ~ 300 Hz; high frequency mode: 0 ~ 3000 Hz

Output

G type machine: 110% long-term; 150% 1 minute ;200% 4 seconds

Overload capacity

P type machine: 105% long-term ;120% 1 minute; 150% 1 second

V/F control, advanced V/F control, V/F separation control and PG-free current vector

Control mode

control

Frequency setting

Analog end input

0.1% of the maximum output frequency

Resolution

Digital settings

0.01Hz

Frequency

Analog input

Within 0.2% of the maximum output frequency

accuracy

Digital input

Set the output frequency within 0.01%

The reference frequency can be set arbitrarily from 0.5

Hz to 3000 Hz, and the multi-point V/F curve can be set

V/F curve (voltage

arbitrarily. You can also choose a variety of fixed curves

frequency characteristic)

Control

such as constant torque, torque reduction 1, torque

charact

reduction 2 and square torque

eristic

Manual setting: 0.0 ~ 30.0% of rated output

Automatic boost: automatically determine the boost

V/F control

Torque boost

torque according to the output current and motor

parameters

Whether in acceleration, deceleration or stable

operation, the motor stator current and voltage can be

Automatic current and

automatically detected, which can be suppressed within

voltage limiting

the allowable range according to the unique algorithm

to minimize the possibility of system fault tripping

voltage frequency

Automatically adjust output voltage-frequency ratio

characteristic

according to motor parameters and unique algorithm

Starting torque:

150% rated torque at 3.0Hz (VF control)

150% rated torque at 1.0Hz (advanced VF control)

150% rated torque at 0.5Hz (without PG current vector

control)

Torque characteristic

Running speed steady-state accuracy: ≤± 0.2% rated

Sensorless

vector

synchronous speed

control

Speed fluctuation: ≤± 0.5% rated synchronous speed

Control

Torque response: ≤20ms (without PG current vector

charact

control)

eristic

Without any restriction, the parameters can be

Self-determination of

automatically detected under static and dynamic

motor parameters

conditions to obtain the best control effect

Full-range current closed-loop control, completely

Current and voltage

avoiding current impact, with perfect overcurrent and

suppression

overvoltage suppression function

Especially for users with low grid voltage and frequent fluctuation of grid voltage, the

Running

system can maintain the longest possible operation time according to the unique

undervoltage

algorithm and residual energy allocation strategy even in the range below the

suppression

allowable voltage

Multi speed and

16-stage programmable multi-stage speed control and multiple operation modes are

Swing frequency

optional. Swing frequency operation: preset frequency and center frequency can be

operation

adjusted, and state memory and recovery after power failure

PID control

Built-in PID controller

(preset frequency). Standard configuration RS485

RS485

communication function, multiple communication protocols can be selected, with

communication

linkage synchronous control function

Typical

DC voltage 0 ~ 10 V, DC current 0 ~ 20 mA (upper and

functio

Analog input

lower limits are optional)

Frequency setting

keypad setting, RS485

interface setting, UP/DOWN

Digital input

terminal control, and various combination settings with

analog input can also be made.

Y-terminal open collector outputs and two

Output signal

Digital output

programmable relay outputs (TA/TB/TC), with up to 61

functions

HV100

Series High Performance Current Vector Inverter

2 analog signals are output, and the output range can be

flexibly set between 0 ~ 20mA or 0 ~ 10V, which can

Analog output

realize the output of physical quantities such as set

frequency and output frequency

Automatic voltage

According to the needs, three modes can be selected: dynamic voltage stabilization,

stabilizing

static voltage stabilization and non-voltage stabilization, so as to obtain the most

operation

stable operation effect

Acceleration and

0.1s ～ 3600.0min can be set continuously, and S-type and linear mode can be

deceleration

selected

Time setting

Energy

consumpti

Energy consumption braking starting voltage, return difference voltage and energy

consumption braking rate can be continuously adjusted

Brake

Direct

Starting frequency of DC braking during shutdown:

0.00

~ [00.13] upper limit

current

frequency

Bra

Brake

Braking time: 0.0 ~ 100.0 s; Braking current: 0.0% ~ 150.0% rated current

Magnetic

flow

0 ~ 100 0: invalid

Brake

Low noise

The carrier frequency is continuously adjustable from 1.0 kHz to 16.0 kHz to minimize

operation

the noise of the motor

Revolving speed

It can realize the smooth restart and instantaneous stop restart of the motor in

tracking speed

operation

Restart facility

Counter

One internal counter is convenient for system integration

Upper and lower limit frequency setting, frequency jump operation, reverse operation

Operating function

limit, slip frequency compensation, RS485 communication, frequency increment and

decrement control, fault self-recovery operation, etc

Output frequency, output current, output voltage, motor speed, set

Running

frequency, module temperature, PID setting, feedback amount,

State

keypad

analog input and output, etc

Display

display

The last six fault records, the record of six operation parameters such as output

Alarm

frequency, set frequency, output current, output voltage, DC voltage and module

Content

temperature during the last fault trip.

Over-current, over-voltage, under-voltage, module failure, electronic thermal relay,

Protection function

overheating, short circuit, input and output phase failure, abnormal tuning of motor

parameters, internal memory failure, etc.

Ambient

-10℃ ~+40℃ (the ambient temperature is 40℃ ~ 50℃, please use it at a reduced

temperature

level)

Environ

Ambient humidity

5% ~ 95% RH, no water condensation

ment

Surrounding

Indoor (no direct sunlight, corrosion, flammable gas, oil mist, dust, etc.)

environment

Altitude

1000 meters above the use of derating, every 1000 meters up derating 10%

Structu

Protection grade

IP20

Cooling mode

Air-cooled with fan control

Installation method

Wall mounted, cabinet mounted

2.2 Inverter model description

2.2.1 Product naming

Brake unit

Empty

Inverter series

Built-in

Code

Voltage class

Code

Adaptation motor

power

Code

Type

General

Fan/Pump

type

Figure 2-1 Naming Rules

2.2.2 Nameplate marking

Rated nameplate

Company Logo

Inverter model

MODEL: HV100-004G3

Nominal power

POWER:

4KW

Rated input

INPUT:

3PH AC 380～440V

50Hz/60Hz

Rated output

OUTPUT:

3PH AC 0～440V 8.5A 0～500Hz

Manufacturing code

S/ N:

Serial number

HNC Electric Limited

Figure 2-2 nameplate

2.3 Size of inverter and keyboard

Figure 2-3 Dimensions of Inverter 0.75KW~30KW

Installation

hole

(mm)

Model No.

(mm)

Mounting

Exterior dimensions

dimension

Single

phase

0.4KW-2.2KW

200

212

154

AC220V

0.4KW-2.2KW

200

212

154

Three

phase

4KW-5.5KW

129

230

240

140

180.5

AC220V

7.5KW-15KW

188

305

322

205

199

Three

0.75KW-4KW

200

212

154

phase

5.5KW-11KW

129

230

240

140

180.5

AC380

～480V

15KW-30KW

188

305

322

205

199

Keyboard dimensions：

2.4 Rated current output table

Single - phase

Three-phase

Voltage

220V

380～480V

Power(KW)

Current

(A)

Current

(A)

Current

(A)

0.4

2.3

2.1

0.75

3.8

2.1

1.5

7.2

3.8

2.2

9.6

5.1

5.5

7.5

18.5

2.5 Selection of Braking Resistance Table

Braking

Inverter power

Brake resistance specification

Voltage(V)

torque

(KW)

Ohm

10%ED

0.4

200

125

Single-phase 220

0.75

150

125

series

1.5

100

125

2.2

100

125

0.4

300

125

0.75

150

110

125

1.5

250

100

125

2.2

300

125

Three-phase 220

400

125

series

5.5

800

125

7.5

1000

125

2300

125

3000

125

2300

125

0.75

140

750

125

1.5

300

400

125

2.2

400

250

125

750

150

125

5.5

1100

100

125

Three-phase 380～

7.5

1500

125

480 series

2200

125

3000

125

18.5

4000

125

4500

125

6000

125

Notes:

1. Please select the resistance value specified by our company.

2. Our company will not be liable for any damage to the inverter or other equipment caused by the use of brake resistors

other than those provided by our company.

3. The safety and flammability of the environment must be considered in the installation of the brake resistor, and the

distance from the inverter should be at least 100 mm.

4. The parameters in the table are for reference only, not as standards.

Chapter III Storage and Installation

3.1 storage

This product must be placed in a packing box before installation. If it is not used temporarily, please pay attention to

the following items when storing:

● It must be placed in a dry place without dirt;

● The storage environment temperature is within the range of -20℃ to +65℃;

● The relative humidity of the storage environment is in the range of 0% to 95%, and there is no condensation;

● The storage environment contains no corrosive gas or liquid;

● It is best to be placed on a shelf and packaged for storage. It is best not to store the inverter for a long time.

Long-term storage will lead to deterioration of electrolytic capacitor. If long-term storage is required, it must be ensured that

it is electrified once within half a year for at least 5 hours. When inputting, the voltage must be slowly increased to the rated

voltage value by a voltage regulator.

3.2 Installation site and environment

Note: the environmental conditions of the installation site will affect the service life of the inverter. Please install the

inverter in the following places:

● Ambient temperature:-5 ~ 40℃ and good ventilation;

● Places without dripping water and low temperature;

● Places without sunlight, high temperature and serious dust falling;

● Places without corrosive gases and liquids;

● Places with less dust, oil and gas and metal dust;

● Places without vibration and easy to maintain and check;

● Places without electromagnetic noise interference;

3.3 Installation space and direction

● For the convenience of maintenance, enough space should be left around the inverter. As shown in the figure.

● In order to achieve good cooling effect, the inverter must be installed vertically and the air circulation should be

smooth.

●If the installation is not secure. After installing a flat plate under the base of the inverter, it is installed on a loose plane,

and the stress may cause damage to the main circuit parts, thus damaging the inverter;

● The wall of installation shall be made of incombustible materials such as iron plates.

● Multiple inverters are installed in the same cabinet. When installing from top to bottom, pay attention to the spacing,

and add a diversion baffle in the middle or install it in a staggered way.

Chapter IV Wiring

4.1 Main circuit wiring diagram

Power supply: Please pay attention to whether the voltage levels

are consistent, so as not to damage the inverter.

Fuseless switch: please refer to the corresponding table.

Leakage switch: please use leakage switch with high-order

harmonic protection.

Magnetic contactor:

Note: please do not use electromagnetic contactor as the power

switch of frequency converter.

Ac reactor: when the output capacity is greater than 1000KVA, it is

recommended to install an AC reactor to improve the power factor.

Inverter:

Be sure to properly connect the main circuit and control signal line

of the inverter.

Be sure to set the inverter parameters correctly.

4.2 Connecting terminal Figure

4.2.1 The function description of the main circuit terminal is as follows:

Terminal name

Function description

R、S、T

Three-phase power input Terminal

P+、 P-

External brake unit reserved terminal

P+、PB

External braking resistor reserved terminal (0.75KW~30.0KW)

P+、 P1

Reserved terminal of external DC reactor

U、V、W

Three-phase AC output terminal

Ground terminal

4.2.2 The terminal for controlling loop

Function description of control circuit terminal

Classifica

Terminal

Description of functions

Specification

tion

label

DI1

DI2

Short circuit between DI(DI1, DI2, DI3, DI4, DI5,

DI3

DI6, HDI) ~ COM is valid, and its functions are

set by parameters 07.00 ~ 07.06 respectively

DI4

Multifuncti

(common terminal: com).

onal digital

Input, 0 ~ 24V level signal, active at

input

DI5

low level, 5mA.

terminal

DI6

HDI can be used as a common multi-function

terminal, and can also be programmed as a

DI7(HDI)

high-speed pulse input port. see 07.06

functional description for details.

AI1 receives analog voltage/current input. The

voltage and current are selected by jumper JP3.

AI1

The factory default input voltage. If the current

INPUT, input voltage range: 0 ~ 10v

is to be input, just adjust the jumper cap to Cin

(input impedance: 100KΩ), input

position. AI2 only receives voltage input. See

current range: 0 ~ 20ma (input

the description of function code 06.01 ~ 06.10

impedance: 500Ω).

Analog

AI2

for the setting of measuring range. (reference

input and

ground: GND)

output

AO1 provides analog voltage/current output,

terminals

which can represent 14 physical quantities.

OUTPUT, 0 ~ 10v DC voltage.

AO1

The output voltage and current are selected by

Output voltages of AO1 and AO2

jumper JP4, and the factory default output

terminals are PWM waveforms

voltage. If you want to output current, just jump

from the central processing unit.

AO2

the jumper cap to Co1 position. See description

The output voltage is proportional

(Reserved)

of function codes 06.21 and 06.22 for details.

to the width of PWM waveform.

(reference ground: GND)

TA1

TA1-TB1 and TA2-TB2 are

normally closed;

TB1

TA1-TC1 and TA2-TC2 are

Relay

TC1

Programmable relay output terminals are

normally open.

output

defined as multi-functions, with 62 types. See

TA2

Contact capacity: 250vac/2a (cos ф

terminal

07.20 and 07.21 for details.

= 1);

TB2

250VAC/1A(COSФ=0.4),30VDC/1

TC2

1. Switching capacity: 50mA/30V

Open

HDO

Programmable defined as multifunctional

2. Output frequency range:

Collector

collector output terminals, up to 62 kinds. See

0~50kHz

output

07.18 and 07.19 for details.

1. Switching capacity: 50mA/30V

terminal

2. Output frequency range: 0~1kHz

+24V is the circuit common power supply of

+24V

Maximum output current 200mA

digital signal input terminal

+10V is the circuit common power supply of

+10V

Maximum output current 20mA

analog input and output terminals

The factory default is OP connected to +24V.

When using external signals to drive DI1～DI6,

DC power

OP needs to be connected to the external

External power input terminal

supply

power supply and disconnected from the +24V

power supply terminal

Digital signal and +24V power supply reference

COM

Internally isolated from GND

ground

Analog signal and +10V power supply reference

GND

Isolated internally from COM

ground

485+

RS485+

Standard RS485 communication

Communic

interface is not isolated from GND.

ation

Please use twisted pair or shielded

interface

485-

RS485-

wire.

4.2.3 Jumper settings of main control board

JP2

Represents 485 communication terminal resistance

OFF

is not connected

Represents 485 communication terminal resistance

is connected

JP3

Cin

Represents AI1 input current signal, 4-20mA

Vin

Represents AI1 input voltage signal, 0-10V

JP4

Vo1

Represents AO1 output voltage signal, 0-10V

Co1

Represents AO1 output current signal, 4-20mA

JP5

Vo2(Reserved)

Represents AO2 output voltage signal, 0-10V

Co2(Reserved)

Represents AO2 output current signal, 4-20mA

4.3 Basic wiring diagram

Inverter wiring is divided into main circuit and control circuit. The user can lift the cover of the shell, and the main circuit

terminal and the control circuit terminal can be seen at this time. The user must connect accurately according to the

following wiring circuits.

Braking resistance

Circuit breaker

Default

Open collector output 1

Open collector output 2

(Reserved)

For the selection of

Relay R1

voltage and

Relay R2

Potentiometer

current signals,

refer to jumpers on

the previous page

R485 Communication

Basic operation wiring diagram

4.4 Matters needing attention for Wiring

4.4.1 Main circuit wiring

●When wiring , please implement wiring in accordance with the provisions of electrical laws and regulations to ensure

safety.

● For power supply wiring, please use isolation wire or line pipe, and ground both ends of the isolation layer or line

pipe;

● Please install an air circuit breaker NPB between the power supply and the input terminals (R, S, T). (If using the

leakage circuit breaker, please use the circuit breaker with high frequency countermeasures).

● Please arrange the power line and control line separately, and do not place them in the same trunking.

● Do not connect the AC power supply to the inverter output terminals (U, V, W);

● The output wiring must not touch the metal part of the inverter housing, otherwise it may cause a short circuit to the

ground.

● Components such as phase-shifting capacitors, LC and RC noise filters cannot be used at the output end of inverter.

● The main circuit wiring of inverter must be far away from other control equipment.

● When the wiring between the inverter and the motor exceeds 50m (220V series) and 100m (380V class), high dv/dt

will be generated in the coil of the motor, which will damage the interlayer insulation of the motor. Please use the AC motor

dedicated to the inverter or install a reactor on the inverter side.

● When the distance between the inverter and the motor is long, please reduce the carrier frequency, because the

larger the carrier, the greater the leakage current of higher harmonic on the cable, which will have adverse effects on the

inverter and other equipment.

4.4.2 Control circuit wiring (signal line)

The signal line should not be placed in the same slot as the main circuit wiring, otherwise interference may occur.

Please use shielded wires for signal wires, and ground them at one end. The wire diameter is 0.5-2mm² 1 shielded wire is

recommended for the control line. Use the control terminals on the control keypadcorrectly as required.

4.4.3 Grounding wire

Please use the third grounding method (below 100Ω) to ground the grounding wire terminal E; Please use the

grounding wire according to the technical basic length and size of electrical equipment; Never share the grounding

electrode with large power equipment such as electric welding machine and power machinery, and the grounding wire

should be as far away from the power line of large power equipment as possible; Please use the grounding wiring mode of

multiple inverters in the following figure (a) to avoid the loop of (b) or (c).

● Grounding wiring must be as short as possible.

●Please properly ground the grounding terminal E, and never connect to the zero line.

(a) Correct

(b) Error

4.5 Matters needing attention for specific application

4.5.1 Type selection

(1) Installation of reactor

When the inverter is connected to a large-capacity power transformer (above 600kVA) or the phase-advancing

capacitor is switched, the power input circuit will produce excessive peak current, which may damage the components of

the converter. To prevent this, please install DC reactor or AC reactor. This also helps to improve the power factor on the

power supply side. In addition, when thyristor converters such as DC drivers are connected to the same power supply

system, DC reactors or AC reactors must be set regardless of power supply conditions.

Power - tuned reactor is

required

No reactor required

Inverter Capacity (KVA)

Installation conditions of reactor

(2) Inverter capacity

When running a special motor, please make sure that the rated current of the motor is not higher than the rated output

current of the inverter. In addition, when running multiple induction motors in parallel with a inverter, the capacity of the

inverter should be selected so that 1.1 times of the total rated current of the motors is less than the rated output current of

the inverter.

(3) Starting torque

The starting and accelerating characteristics of the motor driven by inverter are limited by the overload rated current of

the combined inverter. Compared with the starting of general commercial power supply, the torque characteristic is smaller.

If a large starting torque is required, please increase the capacity of the inverter by one level or increase the capacity of the

motor and inverter at the same time.

(4) Emergency stop

Although the protection function will act and the output will stop when the inverter fails, the motor cannot be stopped

suddenly at this time. Therefore, please set mechanical stop and hold structure on the mechanical equipment that needs

emergency stop.

(5) Special options

Terminals PB(+) and P1(+) are terminals for connecting with special optional items. Do not connect machines other

than special options.

(6) Precautions related to reciprocating load

When the inverter is used for reciprocating loads (cranes, elevators, punching machines, washing machines, etc.), if

150% or more of the current flows repeatedly, the service life of IGBT inside the inverter will be shortened due to thermal

fatigue. As a general standard, when the carrier frequency is 4kHz and the peak current is 150%, the starting/stopping

times are about 8 million times.

Especially when low noise is not required, please reduce the carrier frequency. In addition, please reduce the peak

current during reciprocating to less than 150% by reducing the load, prolonging the acceleration and deceleration time, or

increasing the capacity of the inverter by one level (during the trial run for these purposes, please confirm the peak current

during reciprocating and adjust it as needed). In addition, when used in cranes, it is suggested to make the following

choices to ensure the motor torque and reduce the current of the inverter, because the starting/stopping action during JOG

is fast. · The capacity of the inverter should ensure that its peak current is lower than 150%. The capacity of inverter should

be more than 1 level larger than that of motor.

4.5.2

Matters needing attention in motor use

(1) It is used for existing standard motors

Low speed domain

Compared with the standard motor driven by commercial power supply, the loss caused by using inverter will increase

somewhat. In the low speed range, the cooling effect will deteriorate and the temperature of the motor will increase.

Therefore, in the low speed range, please reduce the load torque of motor. The allowable load characteristics of our

standard motor are shown in the figure. In addition, when 100% continuous torque is required in low speed range, please

discuss whether to use the special motor for inverter.

25%ED (or 15 minutes)

40%ED (or 20 minutes)

60%ED (or 40 minutes)

Continuous

Frequency (Hz)

Allowable load characteristics of our standard motor

(2) Matters needing attention for special motors

The rated current of the pole-changing motor is different from that of the standard motor. Please confirm the maximum

current of the motor and select the corresponding inverter. Be sure to switch the number of poles after the motor stops. If

switching is performed during rotation, the regeneration overvoltage or overcurrent protection circuit will act and the free

running of the motor will stop.

Motor with brake

When using inverter to drive motor with brake, if the brake circuit is directly connected to the output side of inverter, the

brake will not open due to the low voltage during starting. Please use the motor with brake with independent brake power

supply, and connect the brake power supply to the power supply side of the inverter. In general, when using a motor with a

brake, the noise in the low speed range may become larger.

(3) Power transmission structure (reducer, belt, chain, etc.)

When the gearbox, gearbox and reducer with oil lubrication mode are used in the power transmission system, the oil

lubrication effect will become worse if they only run continuously in the low speed range, so please pay attention. In

addition, when running at high speed above 60Hz, problems such as noise of power transmission structure, service life,

strength caused by centrifugal force, etc. will occur, so please pay full attention to it.

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