INVT GD20-1R5G-2, GD20-1R5G-S2, GD20-2R2G-2, GD20-2R2G-S2, GD20-004G-2 Operation Manual

Goodrive20 Series Inver ter

Goodrive20 inverters

Content

1

Content

Content .......................................................................................................................................................................... 1

1 Safety Precautions..................................................................................................................................................... 2

1.1 Safety definition ............................................................................................................................................. 2

1.2 Warning symbols ........................................................................................................................................... 2

1.3 Safety guidelines ........................................................................................................................................... 2

2 Product Overview ...................................................................................................................................................... 5

2.1 Quick start-up ................................................................................................................................................ 5

2.2 Product specification..................................................................................................................................... 6

2.3 Name plate .................................................................................................................................................... 8

2.4 Type designation key .................................................................................................................................... 8

2.5 Rated specifications ...................................................................................................................................... 9

2.6 Structure diagram ........................................................................................................................................ 10

3 Installation Guidelines ............................................................................................................................................. 13

3.1 Mechanical installation................................................................................................................................ 13

3.2 Standard wiring............................................................................................................................................ 15

3.3 Layout protection......................................................................................................................................... 20

4 Keypad Operation Procedure ................................................................................................................................. 22

4.1 Keypad introduction .................................................................................................................................... 22

4.2 Keypad displaying ....................................................................................................................................... 24

4.3 Keypad operation ........................................................................................................................................ 25

5 Function Parameters ............................................................................................................................................... 28

6 Fault Tracking........................................................................................................................................................... 87

6.1 Maintenance intervals ................................................................................................................................. 87

6.2 Fault solution ............................................................................................................................................... 91

7 Communication Protocol ......................................................................................................................................... 96

7.1 Brief instruction to Modbus protocol .......................................................................................................... 96

7.2 Application of the inverter ........................................................................................................................... 96

7.3 Command code and communication data illustration ............................................................................ 102

7.4 The definition of data address .................................................................................................................. 109

7.5 Example of writing and reading ............................................................................................................... 115

7.6 Common communication fault ................................................................................................................. 119

Appendix A Technical Data....................................................................................................................................... 120

A.1 Ratings....................................................................................................................................................... 120

A.2 CE .............................................................................................................................................................. 121

A.3 EMC regulations ....................................................................................................................................... 121

Appendix B Dimension Drawings ............................................................................................................................ 122

B.1 External keypad structure ........................................................................................................................ 122

B.2 Inverter chart ............................................................................................................................................. 123

Appendix C Peripheral Options and Parts .............................................................................................................. 127

C.1 Peripheral wiring ....................................................................................................................................... 127

C.2 Power supply ............................................................................................................................................ 128

C.3 Cables ....................................................................................................................................................... 128

C.4 Breaker and electromagnetic contactor .................................................................................................. 129

C.5 Reactors .................................................................................................................................................... 131

C.6 Filter ........................................................................................................................................................... 132

C.7 Braking components ................................................................................................................................ 135

Appendix D Further Information .............................................................................................................................. 138

Goodrive20 inverters Safety precautions

2

1 Safety Precautions

Please read this manual carefully and follow all safety precautions before moving, installing, operating and

servicing the inverter. If ignored, physical injury or death may occur, or damage may occur to the devices.

If any physical injury or death or damage to the devices occurs for ignoring to the safety precautions in the
manual, our company will not be responsible for any damages and we are not legally bound in any manner.

1.1 Safety definition

Danger: Serious physical injury or even death may occur if not follow relevant

requirements

Warning: Physical injury or damage to the devices may occur if not follow relevant

requirements

Note: Physical hurt may occur if not follow relevant requirements

Qualified electricians: People working on the device should take part in professional electrical and

safety training, receive the certification and be familiar with all steps and

requirements of installing, commissioning, operating and maintaining the

device to avoid any emergency.

1.2 Warning symbols

Warnings caution you about conditions which can result in serious injury or death and/or damage to the

equipment, and advice on how to avoid the danger. Following warning symbols are used in this manual:

Symbols Name Instruction Abbreviation

Danger

Danger

Serious physical injury or even death may

occur if not follow the relative requirements

Warning

Warning

Physical injury or damage to the devices may

occur if not follow the relative requirements

Do not

Electrostatic

discharge

Damage to the PCBA board may occur if not

follow the relative requirements

Hot sides

Hot sides

Sides of the device may become hot. Do not

touch.

Note Note

Physical hurt may occur if not follow the

relative requirements

Note

1.3 Safety guidelines

 Only qualified electricians are allowed to operate on the inverter.

 Do not carry out any wiring and inspection or changing components when the power

supply is applied. Ensure all input power supply is disconnected before wiring and

checking and always wait for at least the time designated on the inverter or until the DC

bus voltage is less than 36V. Below is the table of the waiting time:

Inverter module Minimum waiting time

1PH 220V 0.4kW-2.2kW 5 minutes

3PH 220V 0.4kW-7.5kW 5 minutes

3PH 380V 0.75kW-110kW 5 minutes

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 Do not refit the inverter unauthorized; otherwise fire, electric shock or other injury may

occur.

 The base of the radiator may become hot during running. Do not touch to avoid hurt.

 The electrical parts and components inside the inverter are electrostatic. Take

measurements to avoid electrostatic discharge during relevant operation.

1.3.1 Delivery and installation

 Please install the inverter on fire-retardant material and keep the inverter away from

combustible materials.

 Connect the braking optional parts (braking resistors, braking units or feedback units)

according to the wiring diagram.

 Do not operate on the inverter if there is any damage or components loss to the inverter.

 Do not touch the inverter with wet items or body, otherwise electric shock may occur.

Note:

 Select appropriate moving and installing tools to ensure a safe and normal running of the inverter

and avoid physical injury or death. For physical safety, the erector should take some mechanical

protective measurements, such as wearing exposure shoes and working uniforms.

 Ensure to avoid physical shock or vibration during delivery and installation.

 Do not carry the inverter by its cover. The cover may fall off.

 Install away from children and other public places.

 The inverter cannot meet the requirements of low voltage protection in IEC61800-5-1 if the sea level

of installation site is above 2000m.

 The leakage current of the inverter may be above 3.5mA during operation. Ground with proper

techniques and ensure the grounding resistor is less than 10Ω. The conductivity of PE grounding

conductor is the same as that of the phase conductor (with the same cross sectional area).

 R, S and T are the input terminals of the power supply, while U, V and W are the motor terminals.

Please connect the input power cables and motor cables with proper techniques; otherwise the

damage to the inverter may occur.

1.3.2 Commissioning and running

 Disconnect all power supplies applied to the inverter before the terminal wiring and wait

for at least the designated time after disconnecting the power supply.

 High voltage is present inside the inverter during running. Do not carry out any operation

except for the keypad setting.

 The inverter may start up by itself when P01.21=1. Do not get close to the inverter and

motor.

 The inverter can not be used as “Emergency-stop device”.

 The inverter can not be used to break the motor suddenly. A mechanical braking device

should be provided.

Note:

 Do not switch on or off the input power supply of the inverter frequently.

 For inverters that have been stored for a long time, check and fix the capacitance and try to run it

Goodrive20 inverters Safety precautions

4

again before utilization (see Maintenance and Hardware Fault Diagnose).

 Cover the front board before running, otherwise electric shock may occur.

1.3.3 Maintenance and replacement of components

 Only qualified electricians are allowed to perform the maintenance, inspection, and

components replacement of the inverter.

 Disconnect all power supplies to the inverter before the terminal wiring. Wait for at least

the time designated on the inverter after disconnection.

 Take measures to avoid screws, cables and other conductive matters to fall into the

inverter during maintenance and component replacement.

Note:

 Please select proper torque to tighten screws.

 Keep the inverter, parts and components away from combustible materials during maintenance and

component replacement.

 Do not carry out any isolation and pressure test on the inverter and do not measure the control

circuit of the inverter by megameter.

1.3.4 What to do after scrapping

 There are heavy metals in the inverter. Deal with it as industrial effluent.

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2 Product Overview

2.1 Quick start-up

2.1.1 Unpacking inspection

Check as follows after receiving products:

1. Check that there are no damage and humidification to the package. If not, please contact with local

agents or INVT offices.

2. Check the information on the type designation label on the outside of the package to verify that the drive

is of the correct type. If not, please contact with local dealers or INVT offices.

3. Check that there are no signs of water in the package and no signs of damage or breach to the inverter.

If not, please contact with local dealers or INVT offices.

4. Check the information on the type designation label on the outside of the package to verify that the name

plate is of the correct type. If not, please contact with local dealers or INVT offices.

5. Check to ensure the accessories (including user’s manual and control keypad) inside the device is

complete. If not, please contact with local dealers or INVT offices.

2.1.2 Application confirmation

Check the machine before beginning to use the inverter:

1. Check the load type to verify that there is no overload of the inverter during work and check that whether

the drive needs to modify the power degree.

2. Check that the actual current of the motor is less than the rated current of the inverter.

3. Check that the control accuracy of the load is the same of the inverter.

4. Check that the incoming supply voltage is correspondent to the rated voltage of the inverter.

2.1.3 Environment

Check as follows before the actual installation and usage:

1. Check that the ambient temperature of the inverter is below 40°C. If exceeds, derate 1% for every

additional 1°C. Additionally, the inverter can not be used if the ambient temperature is above 50°C.

Note: for the cabinet inverter, the ambient temperature means the air temperature inside the cabinet.

2. Check that the ambient temperature of the inverter in actual usage is above -10°C. If not, add heating

facilities.

Note: for the cabinet inverter, the ambient temperature means the air temperature inside the cabinet.

3. Check that the altitude of the actual usage site is below 1000m. If exceeds, derate1% for every

additional 100m.

4. Check that the humidity of the actual usage site is below 90% and condensation is not allowed. If not,

add additional protection inverters.

5. Check that the actual usage site is away from direct sunlight and foreign objects can not enter the

inverter. If not, add additional protective measures.

6. Check that there is no conductive dust or flammable gas in the actual usage site. If not, add additional

protection to inverters.

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2.1.4 Installation confirmation

Check as follows after the installation:

1. Check that the load range of the input and output cables meet the need of actual load.

2. Check that the accessories of the inverter are correctly and properly installed. The installation cables

should meet the needs of every component (including reactors, input filters, output reactors, output filters,

DC reactors, braking units and braking resistors).

3. Check that the inverter is installed on non-flammable materials and the calorific accessories (reactors

and brake resistors) are away from flammable materials.

4. Check that all control cables and power cables are run separately and the routation complies with EMC

requirement.

5. Check that all grounding systems are properly grounded according to the requirements of the inverter.

6. Check that the free space during installation is sufficient according to the instructions in user’s manual.

7. Check that the installation conforms to the instructions in user’s manual. The drive must be installed in

an upright position.

8. Check that the external connection terminals are tightly fastened and the torque is appropriate.

9. Check that there are no screws, cables and other conductive items left in the inverter. If not, get them

out.

2.1.5 Basic commissioning

Complete the basic commissioning as follows before actual utilization:

1. Autotune. If possible, de-coupled from the motor load to start dynamic autotune. Or if not, static autotune

is available.

2. Adjust the ACC/DEC time according to the actual running of the load.

3. Commission the device via jogging and check that the rotation direction is as required. If not, change the

rotation direction by changing the wiring of motor.

4. Set all control parameters and then operate.

2.2 Product specification

Function Specification

Power input

Input voltage (V)

AC 1PH 220V (-15%)~240V(+10%)

AC 3PH 220V (-15%)~240V(+10%)

AC 3PH 380V (-15%)~440V(+10%)

Input current (A) Refer to the rated value

Input frequency (Hz) 50Hz or 60Hz Allowed range: 47~63Hz

Power

output

Output voltage (V) 0~input voltage

Output current (A) Refer to the rated value

Output power (kW) Refer to the rated value

Output frequency (Hz) 0~400Hz

Technical

control

feature

Control mode SVPWM, SVC

Motor Asynchronous motor

Adjustable-speed ratio Asynchronous motor 1:100 (SVC)

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Function Specification

Speed control accuracy ±0.2% (SVC)

Speed fluctuation ± 0.3% ( SVC)

Torque response <20ms (SVC)

Torque control accuracy

10%

Starting torque 0. 5Hz/150% ( SVC)

Overload capability

150% of rated current: 1 minute

180% of rated current: 10 seconds

200% of rated current: 1 second

Running

control

feature

Frequency setting method

Digital setting, analog setting, pulse frequency setting,

multi-step speed running setting, simple PLC setting, PID

setting, MODBUS communication setting

Shift between the set combination and set channel.

Auto-adjustment of the

voltage

Keep a stable voltage automatically when the grid voltage

transients

Fault protection

Provide comprehensive fault protection functions:

overcurrent, overvoltage, undervoltage, overheating,

phase loss and overload, etc.

Start after speed tracking

Smoothing starting for running motor

Peripheral

interface

Analog input 1 (AI2) 0~10V/0~20mA and 1 (AI3) -10~10V

Analog output 2 (AO1, AO2) 0~10V/0~20mA

Digital input

4 common inputs, the Max. frequency: 1kHz;

1 high speed input, the Max. frequency: 50kHz

Digital output 1 Y1 terminal output

Relay output

2 programmable relay outputs

RO1A NO, RO1B NC, RO1C common terminal

RO2A NO, RO2B NC, RO2C common terminal

Contact capacity: 3A/AC250V

Others

Temperature of the

running environment

-10~50°C, derate 1% for every additional 1℃ when
above 40℃

DC reactor

Standard embedded DC reactor for the inverters ( ≥

18.5kW)

Installation mode

Wall and rail installation of the inverters(single phase

220V/three phase 380V, ≤2.2KW and three phase 220V,

≤0.75KW)

Wall and flange installation of the inverters(three phase

380V, ≥4KW and three phase 220V, ≥1.5KW)

Braking unit

Standard for the inverters≤37kW and optional for the

inverters of 45~110kW

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Function Specification

Protective degree

IP20

Note: The inverter with plastic casing should be installed

in metal distribution cabinet, which conforms to IP20 and

of which the top conforms to IP3X.

Cooling Air-cooling

EMI filter

Embedded C3 filters for the inverters(three phase 380V,

≥4kW and three phase 220V, ≥1.5kW) ; external C2

filter is optional for all series;

Optional filter: meet the degree requirement of

IEC61800-3 C2, IEC61800-3 C3

Safety Meet the requirement of CE

2.3 Name plate

Figure 2-1 Name plate

Note: This is the example for the standard products. And the CE/TUV/IP20 will be marked according to the

actual.

2.4 Type designation key

The type designation contains information on the inverter. The user can find the type designation on the type

designation label attached to the inverter or the simple name plate.

GD20 – 2R2G – 4

① ② ③

Figure 2-2 Product type

Key No.

Detailed description

Detailed content

Product

abbreviation

① Product abbreviation

Goodrive20

GD20 is short for Goodrive20

Rated power ②

Power range + Load

type

2R2— 2.2kW

G— Constant torque load

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Key No.

Detailed description

Detailed content

Voltage degree ③ Voltage degree

S2: AC 1PH 220V(-15%)~240V(+10%)

2: AC 3PH 220V(-15%)~240V(+10%)

4: AC 3PH 380V(-15%)~440V(+10%)

Note:

Standard for the inverters≤37kW and optional for the inverters of 45~110kW (if it is optional, there is the

designation key of “-B”, for example, GD20-045G-4-B)

2.5 Rated specifications

Model Voltage degree

Rated

output power(kW)

Rated input

current(A)

Rated output

current(A)

GD20-0R4G-S2

Single phase

220V

0.4 6.5 2.5

GD20-0R7G-S2 0.75 9.3 4.2

GD20-1R5G-S2 1.5 15.7 7.5

GD20-2R2G-S2 2.2 24 10

GD20-0R4G-2

Three phase

220V

0.4 3.7 2.5

GD20-0R7G-2 0.75 5 4.2

GD20-1R5G-2 1.5 7.7 7.5

GD20-2R2G-2 2.2 11 10

GD20-004G-2 4 17 16

GD20-5R5G-2 5.5 21 20

GD20-7R5G-2 7.5 31 30

GD20-0R7G-4

Three phase

380V

0.75 3.4 2.5

GD20-1R5G-4 1.5 5.0 4.2

GD20-2R2G-4 2.2 5.8 5.5

GD20-004G-4 4 13.5 9.5

GD20-5R5G-4 5.5 19.5 14

GD20-7R5G-4 7.5 25 18.5

GD20-011G-4 11 32 25

GD20-015G-4 15 40 32

GD20-018G-4 18.5 47 38

Goodrive20 inverters Product Overview

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Model Voltage degree

Rated

output power(kW)

Rated input

current(A)

Rated output

current(A)

GD20-022G-4 22 51 45

GD20-030G-4 30 70 60

GD20-037G-4 37 80 75

GD20-045G-4 45 98 92

GD20-055G-4 55 128 115

GD20-075G-4 75 139 150

GD20-090G-4 90 168 180

GD20-110G-4 110 201 215

2.6 Structure diagram

Below is the layout figure of the inverter (Three phase 380V, ≤2.2kW) (take the inverter of 0.75kW as the

example).

6

12

8

10

7

3

2

5

1

9

11

4

Figure 2-3 Product structure (Three phase 380V, ≤2.2kW)

Serial No.

Name Illustration

1 External keypad port Connect the external keypad

2 Port cover Protect the external keypad port

3 Cover Protect the internal parts and components

4 Hole for the sliding cover Fix the sliding cover

5 Trunking board

Protect the inner components and fix the cables of the main

circuit

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Serial No.

Name Illustration

6 Name plate See Product Overview for detailed information

7 Potentiometer knob Refer to the Keypad Operation Procedure

8 Control terminals See Electric Installation for detailed information

9 Main circuit terminals See Electric Installation for detailed information

10 Screw hole Fix the fan cover and fan

11 Cooling fan

See Maintenance and Hardware Fault Diagnose for

detailed information

12 Fan cover Protect the fan

13

Bar code

The same as the bar code on the name plate

Note: The bar code is on the middle shell which is onder the

cover

Note: In above figure, the screws at 4 and 10 are provided with packaging and specific installation depends

on the requirements of customers.

Below is the layout figure of the inverter (Three phase 380V, ≥4kW) (take the inverter of 4kW as the

example).

Figure 2-3 Product structure(Three phase 380V, ≥4kW)

Serial No.

Name Illustration

1 External keypad port Connect the external keypad

2 Cover Protect the internal parts and components

3 Keypad Refer to the Keypad Operation Procedure

4 Cooling fan

See Maintenance and Hardware Fault Diagnose for

detailed information

5 Name plate See Product Overview for detailed information

6

Cover for the heat emission

hole

Optional, enhancement of the protective degree. It is

necessary to derate the inverter because the internal

Goodrive20 inverters Product Overview

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Serial No.

Name Illustration

temperature is increasing

7 Control terminals See Electric Installation for detailed information

8 Main circuit terminals See Electric Installation for detailed information

9

The cable entry of the main

circuit

Fix the cables

10 Simple name plate Refer to Type Designation Key

11 Bar code

The same as the bar code on the name plate

Note: The bar code is on the middle shell which is onder the

cover

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3 Installation Guidelines

The chapter describes the mechanical installation and electric installation.

 Only qualified electricians are allowed to carry out what described in this chapter. Please

operate as the instructions in Safety Precautions. Ignoring these may cause physical

injury or death or damage to the devices.

 Ensure the power supply of the inverter is disconnected during the operation. Wait for at

least the time designated after the disconnection if the power supply is applied.

 The installation and design of the inverter should be complied with the requirement of the

local laws and regulations in the installation site. If the installation infringes the

requirement, our company will exempt from any responsibility. Additionally, if users do

not comply with the suggestion, some damage beyond the assured maintenance range

may occur.

3.1 Mechanical installation

3.1.1 Installation environment

The installation environment is the safeguard for a full performance and long-term stable functions of the

inverter. Check the installation environment as follows:

Environment Conditions

Installation site Indoor

Environment

temperature

-10°C~+50°C, and the temperature changing rate is less than 0.5°C/minute.

If the ambient temperature of the inverter is above 40°C, derate 1% for every

additional 1°C.

It is not recommended to use the inverter if the ambient temperature is above

50°C.

In order to improve the reliability of the device, do not use the inverter if the

ambient temperature changes frequently.

Please provide cooling fan or air conditioner to control the internal ambient

temperature below the required one if the inverter is used in a close space

such as in the control cabinet.

When the temperature is too low, if the inverter needs to restart to run after a

long stop, it is necessary to provide an external heating device to increase

the internal temperature, otherwise damage to the devices may occur.

Humidity

RH≤90%

No condensation is allowed.

Storage

temperature

-40°C~+70°C, and the temperature changing rate is less than 1°C/minute.

Running environment

condition

The installation site of the inverter should:

keep away from the electromagnetic radiation source;

keep away from contaminative air, such as corrosive gas, oil mist and

flammable gas;

ensure foreign objects, such as metal power, dust, oil, water can not enter

Goodrive20 inverters Installation guidelines

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Environment Conditions

into the inverter(do not install the inverter on the flammable materials such as

wood);

keep away from direct sunlight, oil mist, steam and vibration environment.

Altitude

Below 1000m

If the sea level is above 1000m, please derate 1% for every additional 100m.

Vibration ≤ 5.8m/s2(0.6g)

Installation direction

The inverter should be installed on an upright position to ensure sufficient

cooling effect.

Note:

 Goodrive20 series inverters should be installed in a clean and ventilated environment according

to enclosure classification.

 Cooling air must be clean, free from corrosive materials and electrically conductive dust.

3.1.2 Installation direction

The inverter may be installed on the wall or in a cabinet.

The inverter needs be installed in the vertical position. Check the installation site according to the

requirements below. Refer to chapter Dimension Drawings in the appendix for frame details.

3.1.3 Installation manner

(1) Wall and rail mounting for the inverters(single phase 220V/three phase 380V, ≤2.2KW and three phase

220V, ≤0.75KW)

a) Wall mounting b) Rail mounting

Figure 3-1 Installation

Note: the miniumum space of A and B is 100mm if H is 36.6mm and W is 35.0mm.

(2) Wall and flange mounting for the inverters(three phase 380V, ≥4KW and three phase 220V, ≥1.5KW)

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Figure 3-2 Installation

(1) Locate the position of the installation hole.

(2) Fix the screw or nut on the located position.

(3) Put the inverter againse the wall.

(4) Tighten up the screws.

3.2 Standard wiring

3.2.1 Connection diagram of main circuit

Figure 3-3 Connection diagram of main circuit

Note:

 The fuse, braking resistor, input reactor, input filter, output reactor, output filter are optional parts.

Please refer to Peripheral Optional Parts for detailed information.

 Remove the yellow waring labels of PB, (+) and (-) on the terminals before connecting the braking

resistor; otherwise poor connection may be occur.

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3.2.2 Terminals figure of main circuit

Figure 3-4 1PH terminals of main circuit (single phase)

Figure 3-5 3PH terminals of main circuit (220V, ≤0.75kW, and 380V, ≤2.2kW)

Figure 3-6 3PH terminals of main circuit (220V, ≤1.5kW, and 380V, 4-22kW)

Figure 3-7 3PH terminals of main circuit (30-37kW)

Figure 3-8 3PH terminals of main circuit (45-110kW)

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Terminal Function

L, N

Single phase AC input terminals which are generally connected with
the power supply.

R, S, T

Three phase AC input terminals which are generally connected with
the power supply.

PB, (+) External dynamic braking resistor terminal

(+), (-) Input terminal of the DBU or DC bus

U, V, W

Three phase AC input terminals which are generally connected with
the motor.

PE Protective grounding terminal

Note:

 Do not use asymmetrically motor cables. If there is a symmetrically grounding conductor in

the motor cable in addition to the conductive shield, connect the grounding conductor to the

grounding terminal at the inverter and motor ends.

 Route the motor cable, input power cable and control cables separately.

3.2.3 Wiring of terminals in main circuit

1. Fasten the grounding conductor of the input power cable with the grounding terminal of the inverter (PE)

by 360 degree grounding technique. Connect the phase conductors to L1, L2 and L3 terminals and fasten.

2. Strip the motor cable and connect the shield to the grounding terminal of the inverter by 360 degree

grounding technique. Connect the phase conductors to U, V and W terminals and fasten.

3. Connect the optional brake resistor with a shielded cable to the designated position by the same

procedures in the previous step.

4. Secure the cables outside the inverter mechanically.

3.2.4 Wiring diagram of control circuit

Figure 3-9 Wiring of control circuit

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3.2.5 Terminals of control circuit

Figure 3-10 Terminals of control circuit

Type Terminal name

Function

description

Technical specifications

Communication

485+

485 communication

485 communication interface

485-

Digital

input/output

S1

Digital input

1. Internal impedance:3.3kΩ

2. 12~30V voltage input is available

3. The terminal is the dual-direction
input terminal

4. Max. input frequency:1kHz

S2

S3

S4

HDI

High frequency

input channel

Except for S1~S4, this terminal can be

used as high frequency input channel.

Max. inputfrequency:50kHz

Duty cycle:30%~70%

PW Digital power supply

To provide the external digital power

supply

Voltage range: 12~30V

Y1 Digital output Contact capacity: 50mA/30V

24V power

supply

+24V

24V power supply

External 24V±10% power supply and

the maximum output current is 200mA。

Generally used ad the operation

powersupply of digital input and output

or external sensor power supply

COM

Analog

input/output

+10V

External 10V

reference power

supply

10V reference power supply

Max. output current: 50mA

As the adjusting power supply of the

external potentiometer

Potentiometer resistance: 5kΩ above

AI2

Analog input

1. Input range: AI2 voltage and current

can be chose: 0~10V/0~20mA;

AI3:-10V~+10V.

2. Input impedance:voltage input:

20kΩ; current input: 500Ω.

3.Voltage or current input can be

AI3

Goodrive20 inverters Installation guidelines

19

Type Terminal name

Function

description

Technical specifications

setted by dip switch.

4. Resolution: the minimum AI2/AI3 is

10mV/20mV when 10V corresponds to

50Hz.

GND

Analog reference

ground

Analog reference ground

AO1

Analog output

1. Output range:0~10V or 0~20mA

2. The voltage or the current output is

depended on the dip switch.

3. Deviation±1%,25°C when full range.

AO2

Relay output

RO1A Relay 1 NO contact

RO1 relay output, RO1A NO, RO1B NC,

RO1C common terminal

RO2 relay output, RO2A NO, RO2B NC,

RO2C common terminal

Contact capacity: 3A/AC250V

RO1B Relay 1 NC contact

RO1C

Relay 1 common

contact

RO2A Relay 2 NO contact

RO2B Relay 2 NC contact

RO2C

Relay 2 common

contact

3.2.6 Input/Output signal connection figure

Please use U-shaped contact tag to set NPN mode or PNP mode and the internal or external power supply.

The default setting is NPN internal mode.

Figure 3-11 U-shaped contact tag

If the signal is from NPN transistor, please set the U-shaped contact tag between +24V and PW as below

according to the used power supply.

Goodrive20 inverters Installation guidelines

20

Figure 3-12 NPN modes

If the signal is from PNP transistor, please set the U-shaped contact tag as below according to the used

power supply.

Figure 3-13 PNP modes

3.3 Layout protection

3.3.1 Protecting the inverter and input power cable in short-circuit situations

Protect the inverter and input power cable in short circuit situations and against thermal overload.

Arrange the protection according to the following guidelines.

Figure 3-14 Fuse configuration

Note: Select the fuse as the manual indicated. The fuse will protect the input power cable from damage in

short-circuit situations. It will protect the surrounding devices when the internal of the inverter is short

circuited.

3.3.2 Protecting the motor and motor cables

The inverter protects the motor and motor cable in a short-circuit situation when the motor cable is

dimensioned according to the rated current of the inverter. No additional protection devices are needed.

Goodrive20 inverters Installation guidelines

21

 If the inverter is connected to multiple motors, a separate thermal overload switch

or a circuit breaker must be used for protecting each cable and motor. These

devices may require a separate fuse to cut off the short-circuit current.

3.3.3 Implementing a bypass connection

It is necessary to set power frequency and variable frequency conversion circuits for the assurance of

continuous normal work of the inverter if faults occur in some significant situations.

In some special situations, for example, if it is only used in soft start, the inverter can be conversed into

power frequency running after starting and some corresponding bypass should be added.

 Never connect the supply power to the inverter output terminals U, V and W.

Power line voltage applied to the output can result in permanent damage to the

inverter.

If frequent shifting is required, employ mechanically connected switches or contactors to ensure that the
motor terminals are not connected to the AC power line and inverter output terminals simultaneously.

Goodrive20 inverters Keypad operation procedure

22

4 Keypad Operation Procedure

4.1 Keypad introduction

The keypad is used to control Goodrive20 series inverters, read the state data and adjust parameters.

Figure 4-1 Film keypad

Figure 4-2 External keypad

Note:

1. The film keypad is standard for the inverters of 1PH 220V/3PH 380V(≤2.2kW) and the inverters of

3PH(≤0.75kW). The external keypad is standard for the inverters of 3PH 380V (≥4kW) and 3PH

220V (≥1.5kW).

2. The external keypads are optional (including the external keypads with and without the function of

parameter copying).

Serial

No.

Name Description

1 State LED

RUN/TUNE

LED off means that the inverter is in the stopping

state; LED blinking means the inverter is in the

Goodrive20 inverters Keypad operation procedure

23

Serial

No.

Name Description

parameter autotune state; LED on means the

inverter is in the running state.

FWD/REV

FED/REV LED

LED off means the inverter is in the forward rotation

state; LED on means the inverter is in the reverse

rotation state

LOCAL/REMOT

LED for keypad operation, terminals operation and

remote communication control

LED off means that the inverter is in the keypad

operation state; LED blinking means the inverter is in

the terminals operation state; LED on means the

inverter is i

n the remote communication control state.

TRIP

LED for faults

LED on when the inverter is in the fault state; LED off

in normal state; LED blinking means the inverter is in

the pre-alarm state.

2 Unit LED

Mean the unit displayed currently

Hz Frequency unit

RPM Rotating speed unit

A Current unit

% Percentage

V Voltage unit

3

Code

displaying

zone

5-figure LED display displays various monitoring data and alarm code such as set

frequency and output frequency.

Displayed

word

Corresponding

word

Displayed

word

Corresponding

word

Displayed

word

Corresponding

word

0 1 2

3 4 5

6 7 8

9 A B

C d E

F H I

L N n

o P r

S t U

Goodrive20 inverters Keypad operation procedure

24

Serial

No.

Name Description

v . -

4 Buttons

Programming

key

Enter or escape from the first level menu and remove

the parameter quickly

Entry key

Enter the menu step-by-step

Confirm parameters

UP key Increase data or function code progressively

DOWN key Decrease data or function code progressively

Right-shift key

Move right to select the displaying parameter

circularly in stopping and running mode.

Select the parameter modifying digit during the

parameter modification

Run key

This key is used to operate on the inverter in key

operation mode

Stop/

Reset key

This key is used to stop in running state and it is

limited by function code P07.04

This key is used to reset all control modes in the fault

alarm state

Quick key

The function of this key is confirmed by function code

P07.02.

5

Analog

potentio

meter

AI1, When the external common keypad (without the function of parameter copy ) is

valid, the difference between the local keypad AI1 and the external keypad AI1 is:

When the external keypad AI1 is set to the Min. value, the local keypad AI1 will be

valid and P17.19 will be the voltage of the local keypad AI1; otherwise, the external

keypad AI1 will be valid and P17.19 will be the voltage of the external keypad AI1.

Note: If the external keypad AI1 is frequency reference source, adjust the local

potentiometer AI1 to 0V/0mA before starting the inverter.

6

Keypad port

External keypad port. When the external keypad with the function of parameter

copying is valid, the local keypad LED is off; When the external keypad without the

function of parameter copying is valid, the local and external keypad LEDs are on.

Note: Only the external keypad which has the function of parameters copy owns the

function of parameters copy, other keypads do not have. (only for the inverters≤

2.2kW)

4.2 Keypad displaying

The keypad displaying state of Goodrive20 series inverters is divided into stopping state parameter, running

state parameter, function code parameter editing state and fault alarm state and so on.

Goodrive20 inverters Keypad operation procedure

25

4.2.1 Displayed state of stopping parameter

When the inverter is in the stopping state, the keypad will display stopping parameters which is shown in

figure 4-2.

In the stopping state, various kinds of parameters can be displayed. Select the parameters to be displayed or

not by P07.07. See the instructions of P07.07 for the detailed definition of each bit.

In the stopping state, there are 14 stopping parameters can be selected to be displayed or not. They are: set

frequency, bus voltage, input terminals state, output terminals state, PID given, PID feedback, torque set

value, AI1, AI2, AI3, HDI, PLC and the current stage of multi-step speeds, pulse counting value, length value.

P07.07 can select the parameter to be displayed or not by bit and 》/SHIFT can shift the parameters form left

to right, QUICK/JOG (P07.02=2) can shift the parameters form right to left.

4.2.2 Displayed state of running parameters

After the inverter receives valid running commands, the inverter will enter into the running state and the

keypad will display the running parameters. RUN/TUNE LED on the keypad is on, while the FWD/REV is

determined by the current running direction which is shown as figure 4-2.

In the running state, there are 24 parameters can be selected to be displayed or not. They are: running

frequency, set frequency, bus voltage, output voltage, output torque, PID given, PID feedback, input

terminals state, output terminals state, torque set value, length value, PLC and the current stage of multi-step

speeds, pulse counting value, AI1, AI2, AI3, HDI, percentage of motor overload, percentage of inverter

overload, ramp given value, linear speed, AC input current. P07.05 and P07.06 can select the parameter to
be displayed or not by bit and 》/SHIFT can shift the parameters form left to right, QUICK/JOG(P07.02=2)

can shift the parameters from right to left.

4.2.3 Displayed state of fault

If the inverter detects the fault signal, it will enter into the fault pre-alarm displaying state. The keypad will

display the fault code by flicking. The TRIP LED on the keypad is on, and the fault reset can be operated by

the STOP/RST on the keypad, control terminals or communication commands.

4.2.4 Displayed state of function codes editing

In the state of stopping, running or fault, press PRG/ESC to enter into the editing state (if there is a

password, see P07.00 ).The editing state is displayed on two classes of menu, and the order is: function

code group/function code number→function code parameter, press DATA/ENT into the displayed state of
function parameter. On this state, press DATA/ENT to save the parameters or press PRG/ESC to escape.

Figure 4-2 Displayed state

4.3 Keypad operation

Operate the inverter via operation panel. See the detailed structure description of function codes in the brief

diagram of function codes.

4.3.1 How to modify the function codes of the inverter

The inverter has three levels menu, which are:

Goodrive20 inverters Keypad operation procedure

26

1. Group number of function code (first-level menu)

2. Tab of function code (second-level menu)

3. Set value of function code (third-level menu)

Remarks: Press both the PRG/ESC and the DATA/ENT can return to the second-level menu from the

third-level menu. The difference is: pressing DATA/ENT will save the set parameters into the control panel,

and then return to the second-level menu with shifting to the next function code automatically; while pressing

PRG/ESC will directly return to the second-level menu without saving the parameters, and keep staying at

the current function code.

Under the third-level menu, if the parameter has no flickering bit, it means the function code cannot be

modified. The possible reasons could be:

1) This function code is not modifiable parameter, such as actual detected parameter, operation records and

so on;

2) This function code is not modifiable in running state, but modifiable in stop state.
Example: Set function code P00.01 from 0 to 1.

Figure 4-3 Sketch map of modifying parameters

4.3.2 How to set the password of the inverter

Goodrive20 series inverters provide password protection function to users. Set P7.00 to gain the password

and the password protection becomes valid instantly after quitting from the function code editing state. Press

PRG/ESC again to the function code editing state, “0.0.0.0.0” will be displayed. Unless using the correct

password, the operators cannot enter it.

Set P7.00 to 0 to cancel password protection function.

The password protection becomes effective instantly after retreating from the function code editing state.

Press PRG/ESC again to the function code editing state, “0.0.0.0.0” will be displayed. Unless using the
correct password, the operators cannot enter it.

Figure 4-4 Sketch map of password setting

Goodrive20 inverters Keypad operation procedure

27

4.3.3 How to watch the inverter state through function codes

Goodrive20 series inverters provide group P17 as the state inspection group. Users can enter into P17
directly to watch the state.

Figure 4-5 Sketch map of state watching

Goodrive20 inverters Function Parameters

28

5 Function Parameters

The function parameters of Goodrive20 series inverters have been divided into 30 groups (P00~P29)

according to the function, of which P18~P28 are reserved. Each function group contains certain function

codes applying 3-level menus. For example, “P08.08” means the eighth function code in the P8 group

function, P29 group is factory reserved, and users are forbidden to access these parameters.

For the convenience of function codes setting, the function group number corresponds to the first level menu,

the function code corresponds to the second level menu and the function code corresponds to the third level

menu.

1. Below is the instruction of the function lists:

The first column “Function code”:codes of function parameter group and parameters；
The second column “Name”:full name of function parameters；

The third column “Detailed illustration of parameters”:Detailed illustration of the function parameters
The fourth column “Default value”:the original factory set value of the function parameter；

The fifth column “Modify”: the modifying character of function codes (the parameters can be modified or not

and the modifying conditions),below is the instruction:

“○”: means the set value of the parameter can be modified on stop and running state；
“◎”: means the set value of the parameter can not be modified on the running state；
“●”: means the value of the parameter is the real detection value which can not be modified.

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P00 Group Basic function group

P00.00

Speed control

mode

0: SVC 0

.No need to install encoders. Suitable in applications which

need low frequency, big torque for high accuracy of rotating

speed and torque control. Relative to mode 1, it is more

suitable for the applications which need small power.

1: SVC 1

1 is suitable in high performance cases with the advantage

of high accuracy of rotating speed and torque. It does not

need to install pulse encoder.

2:SVPWM control

2 is suitable in applications which do not need high control

accuracy, such as the load of fan and pump. One inverter

can drive multiple motors.

1 ◎

P00.01

Run command

channel

Select the run command channel of the inverter.

The control command of the inverter includes: start, stop,

forward/reverse rotating, jogging and fault reset.

0:Keypad running command channel (“LOCAL/REMOT”

light off)

Carry out the command control by RUN, STOP/RST on the

keypad.

Set the multi-function key QUICK/JOG to FWD/REVC

0 ○

Goodrive20 inverters Function Parameters

29

Function

code

Name Detailed instruction of parameters

Default

value

Modify

shifting function (P07.02=3) to change the running direction;

press RUN and STOP/RST simultaneously in running state

to make the inverter coast to stop.

1:Terminal running command channel (“LOCAL/REMOT”

flickering)

Carry out the running command control by the forward

rotation, reverse rotation and forward jogging and reverse

jogging of the multi-function terminals

2:Communication running command channel

(“LOCAL/REMOT” on);

The running command is controlled by the upper monitor via

communication

P00.03

Max. output

frequency

This parameter is used to set the maximum output

frequency of the inverter. Users need to pay attention to this

parameter because it is the foundation of the frequency

setting and the speed of acceleration and deceleration.

Setting range: P00.04~400.00Hz

50.00Hz

◎

P00.04

Upper limit of

the running

frequency

The upper limit of the running frequency is the upper limit of

the output frequency of the inverter which is lower than or

equal to the maximum frequency.

Setting range:P00.05~P00.03 (Max. output frequency)

50.00Hz

◎

P00.05

Lower limit of

the running

frequency

The lower limit of the running frequency is that of the output

frequency of the inverter.

The inverter runs at the lower limit frequency if the set

frequency is lower than the lower limit.

Note: Max. output frequency ≥ Upper limit frequency ≥

Lower limit frequency

Setting range:0.00Hz~P00.04 (Upper limit of the running

frequency)

0.00Hz

◎

P00.06

A frequency

command

selection

Note: A frequency and B frequency can not set as the same

frequency given method. The frequency source can be set

by P00.09.

0:Keypad data setting

Modify the value of function code P00.10 (set the frequency

by keypad) to modify the frequency by the keypad.

1:Analog AI1 setting(corresponding keypad potentiometer)

2:Analog AI2 setting(corresponding terminal AI2)

3:Analog AI3 setting(corresponding terminal AI3)

Set the frequency by analog input terminals. Goodrive20

series inverters provide 3 channels analog input terminals

as the standard configuration, of which AI1 is adjusting

0 ○

P00.07

B frequency

command

selection

2 ○

Goodrive20 inverters Function Parameters

30

Function

code

Name Detailed instruction of parameters

Default

value

Modify

through analog potentiometer, while AI2 is the

voltage/current option (0~10V/0~20mA) which can be

shifted by jumpers; while AI3 is voltage input (-10V~+10V).

Note: when analog AI2 select 0~20mA input, the

corresponding voltage of 20mA is 10V.

100.0% of the analog input setting corresponds to the

maximum frequency (function code P00.03) in forward

direction and -100.0% corresponds to the maximum

frequency in reverse direction (function code P00.03)

4:High-speed pulse HDI setting

The frequency is set by high-speed pulse terminals.

Goodrive20 series inverters provide 1 high speed pulse

input as the standard configuration. The pulse frequency

range is 0.00~50.00kHz.

100.0% of the high speed pulse input setting corresponds to

the maximum frequency in forward direction (function code

P00.03) and -100.0% corresponds to the maximum

frequency in reverse direction (function code P00.03).

Note: The pulse setting can only be input by multi-function

terminals HDI. Set P05.00 (HDI input selection) to high

speed pulse input, and set P05.49 (HDI high speed pulse

input function selection) to frequency setting input.

5:Simple PLC program setting

The inverter runs at simple PLC program mode when

P00.06=5 or P00.07=5. Set P10 (simple PLC and multi-step

speed control) to select the running frequency running

direction, ACC/DEC time and the keeping time of

corresponding stage. See the function description of P10 for

detailed information.

6: Multi-step speed running setting

The inverter runs at multi-step speed mode when P00.06=6

or P00.07=6. Set P05 to select the current running step, and

set P10 to select the current running frequency.

The multi-step speed has the priority when P00.06 or

P00.07 does not equal to 6, but the setting stage can only

be the 1~15 stage. The setting stage is 1~15 if P00.06 or

P00.07 equals to 6.

7: PID control setting

The running mode of the inverter is process PID control

when P00.06=7 or P00.07=7. It is necessary to set P09.

The running frequency of the inverter is the value after PID

effect. See P09 for the detailed information of the preset

Goodrive20 inverters Function Parameters

31

Function

code

Name Detailed instruction of parameters

Default

value

Modify

source, preset value and feedback source of PID.

8:MODBUS communication setting

The frequency is set by MODBUS communication. See P14

for detailed information.

9~11: Reserved

P00.08

B frequency

command

reference

selection

0:Maximum output frequency, 100% of B frequency setting

corresponds to the maximum output frequency

1: A frequency command, 100% of B frequency setting

corresponds to the maximum output frequency. Select this

setting if it needs to adjust on the base of A frequency

command.

0 ○

P00.09

Combination of

the setting

source

0: A, the current frequency setting is A frequency command

1: B, the current frequency setting is B frequency command

2: A+B, the current frequency setting is A frequency

command + B frequency command

3: A-B, the current frequency setting is A frequency

command - B frequency command

4: Max (A, B): The bigger one between A frequency

command and B frequency is the set frequency.

5: Min (A, B): The lower one between A frequency command

and B frequency is the set frequency.

Note:The combination manner can be shifted by P05

(terminal function)

0 ○

P00.10

Keypad set

frequency

When A and B frequency commands are selected as

“keypad setting”, this parameter will be the initial value of

inverter reference frequency

Setting range:0.00 Hz~P00.03 (the Max. frequency)

50.00Hz

○

P00.11 ACC time 1

ACC time means the time needed if the inverter speeds up

from 0Hz to the Max. One (P00.03).

DEC time means the time needed if the inverter speeds

down from the Max. Output frequency to 0Hz (P00.03).

Goodrive20 series inverters have four groups of ACC/DEC

time which can be selected by P05. The factory default

ACC/DEC time of the inverter is the first group.

Setting range of P00.11 and P00.12:0.0~3600.0s

Depend

on model

○

P00.12 DEC time 1

Depend

on model

○

P00.13

Running

direction

selection

0: Runs at the default direction, the inverter runs in the

forward direction. FWD/REV indicator is off.

1: Runs at the opposite direction, the inverter runs in the

reverse direction. FWD/REV indicator is on.

Modify the function code to shift the rotation direction of the

0 ○

Goodrive20 inverters Function Parameters

32

Function

code

Name Detailed instruction of parameters

Default

value

Modify

motor. This effect equals to the shifting the rotation direction

by adjusting either two of the motor lines (U, V and W). The

motor rotation direction can be changed by QUICK/JOG on

the keypad. Refer to parameter P07.02.

Note: When the function parameter comes back to the

default value, the motor’s running direction will come back

to the factory default state, too. In some cases it should be

used with caution after commissioning if the change of

rotation direction is disabled.

2: Forbid to run in reverse direction: It can be used in some

special cases if the reverse running is disabled.

P00.14

Carrier

frequency

setting

The relationship table of the motor type and carrier

frequency:

Motor type Factory setting of carrier frequency

0.4~11kW 8kHz

15~110kW 4kHz

The advantage of high carrier frequency: ideal current

waveform, little current harmonic wave and motor noise.

The disadvantage of high carrier frequency: increasing the

switch loss, increasing inverter temperature and the impact

to the output capacity. The inverter needs to derate on high

carrier frequency. At the same time, the leakage and

electrical magnetic interference will increase.

Applying low carrier frequency is contrary to the above, too

low carrier frequency will cause unstable running, torque

decreasing and surge.

The manufacturer has set a reasonable carrier frequency

when the inverter is in factory. In general, users do not need

to change the parameter.

Depend

on model

○

Goodrive20 inverters Function Parameters

33

Function

code

Name Detailed instruction of parameters

Default

value

Modify

When the frequency used exceeds the default carrier

frequency, the inverter needs to derate 10% for each

additional 1k carrier frequency.

Setting range:1.0~15.0kHz

P00.15

Motor

parameter

autotuning

0: No operation

1: Rotation autotuning

Comprehensive motor parameter autotune

It is recommended to use rotation autotuning when high

control accuracy is needed.

2: Static autotuning 1(autotune totally); It is suitable in the

cases when the motor can not de-couple form the load. The

antotuning for the motor parameter will impact the control

accuracy.

3: Static autotuning 2(autotune part parameters); when the

current motor is motor 1, autotune P02.06, P02.07, P02.08

0 ◎

P00.16

AVR function

selection

0:Invalid

1:Valid during the whole procedure

The auto-adjusting function of the inverter can cancel the

impact on the output voltage of the inverter because of the

bus voltage fluctuation.

1 ○

P00.18

Function

restore

parameter

0:No operation

1:Restore the default value

2:Clear fault records

3: Lock all function codes

Note: The function code will restore to 0 after finishing the

operation of the selected function code.

Restoring to the default value will cancel the user password,

please use this function with caution.

0 ◎

P01 Group Start-up and stop control

P01.00

Start mode

0:Start-up directly:start from the starting frequency P01.01

1:Start-up after DC braking: start the motor from the starting

frequency after DC braking (set the parameter P01.03 and

P01.04). It is suitable in the cases where reverse rotation

may occur to the low inertia load during starting.

2: Start after speed tracking 1

3: Start after speed tracking 2

The direction and speed will be tracked automatically for the

smoothing starting of rotating motors. It suits the application

with reverse rotation when big load starting.

0 ◎

Goodrive20 inverters Function Parameters

34

Function

code

Name Detailed instruction of parameters

Default

value

Modify

Note: This function is only available for the inverters≥4kW

P01.01

Starting

frequency of

direct start-up

Starting frequency of direct start-up means the original

frequency during the inverter starting. See P01.02 for

detailed information.

Setting range: 0.00~50.00Hz

0.50Hz

◎

P01.02

Retention time

of the starting

frequency

Set a proper starting frequency to increase the torque of the

inverter during starting. During the retention time of the

starting frequency, the output frequency of the inverter is the

starting frequency. And then, the inverter will run from the

starting frequency to the set frequency. If the set frequency

is lower than the starting frequency, the inverter will stop

running and keep in the stand-by state. The starting

frequency is not limited in the lower limit frequency.

Setting range: 0.0~50.0s

0.0s ◎

P01.03

The braking

current before

starting

The inverter will carry out DC braking at the braking current

set before starting and it will speed up after the DC braking

time. If the DC braking time is set to 0, the DC braking is

invalid.

The stronger the braking current, the bigger the braking

power. The DC braking current before starting means the

percentage of the rated current of the inverter.

The setting range of P01.03: 0.0~100.0%

The setting range of P01.04: 0.00~50.00s

0.0% ◎

P01.04

The braking

time before

starting

0.00s ◎

P01.05

ACC/DEC

selection

The changing mode of the frequency during start-up and

running.

0:Linear type

The output frequency increases or decreases linearly.

0 ◎

Goodrive20 inverters Function Parameters

35

Function

code

Name Detailed instruction of parameters

Default

value

Modify

1: S curve, the output frequyency will increase or decrease
according to the S curve

S curve is generally used on the applications of gradual
starting and stopping, such as elevators.

P01.06

ACC time of

the starting

step of S curve

0.0~50.0s

0.1s ◎

P01.07

DEC time of

the ending step

of S curve

0.1s ◎

P01.08 Stop selection

0: Decelerate to stop: after the stop command becomes

valid, the inverter decelerates to reduce the output

frequency during the set time. When the frequency

decreases to 0Hz, the inverter stops.

1: Coast to stop: after the stop command becomes valid, the

inverter ceases the output immediately. And the load coasts

to stop at the mechanical inertia.

0 ○

P01.09

Starting

frequency of

DC braking

Starting frequency of DC braking: start the DC braking when

running frequency reaches starting frequency determined

by P1.09.

Waiting time before DC braking: Inverters blocks the output

before starting the DC braking. After this waiting time, the

DC braking will be started so as to prevent over-current fault

caused by DC braking at high speed.

DC braking current: the value of P01.11 is the percentage of

0.00Hz

○

P01.10

Waiting time

before DC

braking

0.00s ○

P01.11

DC braking

current

0.0% ○

Goodrive20 inverters Function Parameters

36

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P01.12

DC braking

time

rated current of inverter. The bigger the DC braking current

is, the greater the braking torque is.

DC braking time: the retention time of DC braking. If the

time is 0, the DC braking is invalid. The inverter will stop at

the set deceleration time.

Setting range of P01.09: 0.00Hz~P00.03

(the Max. frequency)

Setting range of P01.10: 0.00~50.00s

Setting range of P01.11: 0.0~100.0%

Setting range of P01.12: 0.00~50.00s

0.00s

○

P01.13

Dead time of

FWD/REV

rotation

During the procedure of switching FWD/REV rotation, set

the threshold by P01.14, which is as the table below:

Setting range: 0.0~3600.0s

0.0s ○

P01.14

Switching

between

FWD/REV

rotation

Set the threshold point of the inverter:

0:Switch after zero frequency

1:Switch after the starting frequency

2: Switch after the speed reach P01.15 and delay for

P01.24

0 ◎

P01.15

Stopping

speed

0.00~100.00Hz 0.50Hz

◎

P01.16

Detection of

stopping speed

0: Detect at the setting speed

1: Detect at the feedback speed(only valid for vector control)

1 ◎

Goodrive20 inverters Function Parameters

37

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P01.17

Detection time

of the feedback

speed

When P01.16=1, the actual output frequency of the inverter

is less than or equal to P01.15 and is detected during the

time set by P01.17, the inverter will stop; otherwise, the

inverter stops in the time set by P01.24.

Setting range: 0.00~100.00s (only valid when P01.16=1)

0.50s

◎

P01.18

Terminal

running

protection

selection when

powering on

When the running command channel is the terminal control,

the system will detect the state of the running terminal

during powering on.

0: The terminal running command is invalid when powering

on. Even the running command is detected to be valid

during powering on, the inverter won’t run and the system

keeps in the protection state until the running command is

canceled and enabled again.

1: The terminal running command is valid when powering

on. If the running command is detected to be valid during

powering on, the system will start the inverter automatically

after the initialization.

Note: This function should be selected with cautions, or

serious result may follow.

0 ○

P01.19

The running

frequency is

lower than the

lower limit one

(valid if the

lower limit

frequency is

above 0)

This function code determines the running state of the

inverter when the set frequency is lower than the lower-limit

one.

0: Run at the lower-limit frequency

1: Stop

2: Hibernation

The inverter will coast to stop when the set frequency is

lower than the lower-limit one.if the set frequency is above

the lower limit one again and it lasts for the time set by

P01.20, the inverter will come back to the running state

automatically.

0 ◎

P01.20

Hibernation

restore delay

time

This function code determines the hibernation delay time.

When the running frequency of the inverter is lower than the

lower limit one, the inverter will stop to stand by.

0.0s ○

Goodrive20 inverters Function Parameters

38

Function

code

Name Detailed instruction of parameters

Default

value

Modify

When the set frequency is above the lower limit one again

and it lasts for the time set by P01.20, the inverter will run

automatically.

Setting range: 0.0~3600.0s (valid when P01.19=2)

P01.21

Restart after

power off

This function can enable the inverter start or not after the

power off and then power on.

0: Disabled

1: Enabled, if the starting need is met, the inverter will run

automatically after waiting for the time defined by P01.22.

0 ○

P01.22

The waiting

time of restart

after power off

The function determines the waiting time before the

automatic running of the inverter when powering off and

then powering on.

Setting range: 0.0~3600.0s (valid when P01.21=1)

1.0s ○

P01.23 Start delay time

The function determines the brake release after the running

command is given, and the inverter is in a stand-by state

and wait for the delay time set by P01.23

Setting range: 0.0~60.0s

0.0s ○

P01.24

Delay of the

stopping speed

Setting range: 0.0~100.0s 0.0s ○

P01.25

0Hz output

Select the 0Hz output of the inverter.

0: Output without voltage

1: Output with voltage

2: Output at the DC braking current

0 ○

P02 Group Motor 1

Goodrive20 inverters Function Parameters

39

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P02.01

Rated power

of

asynchronous

motor

0.1~3000.0kW

Depend

on model

◎

P02.02

Rated

frequency of

asynchronous

motor

0.01Hz~P00.03 50.00Hz

◎

P02.03

Rated speed

of

asynchronous

motor

1~36000rpm

Depend

on model

◎

P02.04

Rated voltage

of

asynchronous

motor

0~1200V

Depend

on model

◎

P02.05

Rated current

of

asynchronous

motor

0.8~6000.0A

Depend

on model

◎

P02.06

Stator resistor

of

asynchronous

motor

0.001~65.535Ω

Depend

on model

○

P02.07

Rotor resistor

of

asynchronous

motor

0.001~65.535Ω

Depend

on model

○

P02.08

Leakage

inductance of

asynchronous

motor

0.1~6553.5mH

Depend

on model

○

P02.09

Mutual

inductance of

asynchronous

motor

0.1~6553.5mH

Depend

on model

○

P02.10

Non-load

current of

asynchronous

motor

0.1~6553.5A

Depend

on model

○

P02.11

Magnetic

saturation

0.0~100.0% 80.0% ◎

Goodrive20 inverters Function Parameters

40

Function

code

Name Detailed instruction of parameters

Default

value

Modify

coefficient 1 for

the iron core of

AM1

P02.12

Magnetic

saturation

coefficient

2 for

the iron core of

AM1

0.0~100.0% 68.0% ◎

P02.13

Magnetic

saturation

coefficient 3 for

the iron core of

AM1

0.0~100.0% 57.0% ◎

P02.14

Magnetic

saturation

coefficient 4 for

the iron core of

AM1

0.0~100.0% 40.0% ◎

P02.26

Motor

overload

protection

selection

0: No protection

1: Common motor (with low speed compensation). Because

the heat-releasing effect of the common motors will be

weakened, the corresponding electric heat protection will be

adjusted properly. The low speed compensation

characteristic mentioned here means reducing the threshold

of the overload protection of the motor whose running

frequency is below 30Hz.

2: Frequency conversion motor (without low speed

compensation). Because the heat-releasing of the specific

motors won’t be impacted by the rotation speed, it is not

necessary to adjust the protection value during low-speed

running.

2 ◎

P02.27

Motor overload

protection

coefficient

Times of motor overload M = Iout/(In*K)

In is the rated current of the motor, Iout is the output current

of the inverter and K is the motor protection coefficient.

So, the bigger the value of K is, the smaller the value of M

is. When M =116%, the fault will be reported after 1 hour,

when M =200%, the fault will be reported after 1 minute,

when M>=400%, the fault will be reported instantly.

100.0%

○

Goodrive20 inverters Function Parameters

41

Function

code

Name Detailed instruction of parameters

Default

value

Modify

Setting range: 20.0%~120.0%

P02.28

Correction

coefficient of

motor 1 power

Correct the power displaying of motor 1.

Only impact the displaying value other than the control

performance of the inverter.

Setting range: 0.00~3.00

1.00 ○

P03 Group Vector control

P03.00

Speed loop

proportional

gain1

The parameters P03.00~P03.05 only apply to vector control

mode. Below the switching frequency 1(P03.02), the speed

loop PI parameters are: P03.00 and P03.01. Above the

switching frequency 2(P03.05), the speed loop PI

parameters are: P03.03 and P03.04. PI parameters are

gained according to the linear change of two groups of

parameters. It is shown as below:

PI has a close relationship with the inertia of the system.

Adjust on the base of PI according to different loads to meet

various demands.

The setting range of P03.00 and P03.03: 0~200.0

The setting range of P03.01 and P03.04: 0.000~10.000s

The setting range of P03.02: 0.00Hz~P00.05

The setting range of P03.05: P03.02~P00.03

20.0

○

P03.01

Speed loop

integral time1

0.200s

○

P03.02

Low switching

frequency

5.00Hz

○

P03.03

Speed loop

proportional

gain 2

20.0

○

P03.04

Speed loop

integral time 2

0.200s

○

P03.05

High switching

frequency

10.00Hz

○

P03.06

Speed loop

output filter

0~8( corresponds to 0~28/10ms) 0 ○

P03.07

Compensation

coefficient of

Slip compensation coefficient is used to adjust the slip

frequency of the vector control and improve the speed

100% ○

Goodrive20 inverters Function Parameters

42

Function

code

Name Detailed instruction of parameters

Default

value

Modify

vector control

electromotion

slip

control accuracy of the system. Adjusting the parameter

properly can control the speed steady-state error.

Setting range:50%~200%

P03.08

Compensation

coefficient of

vector control

brake slip

100% ○

P03.09

Current loop

percentage

coefficient P

Note:

These two parameters adjust the PI adjustment parameter

of the current loop which affects the dynamic response

speed and control accuracy directly. Generally, users do not

need to change the default value;

Only apply to the vector control mode without PG 0

(P00.00=0).

Setting range:0~65535

1000 ○

P03.10

Current loop

integral

coefficient I

1000 ○

P03.11

Torque setting

method

This parameter is used to enable the torque control mode,

and set the torque setting means.

0:Torque control is invalid

1:Keypad setting torque(P03.12)

2:Analog AI1 setting torque

3:Analog AI2 setting torque

4:Analog AI3 setting torque

5:Pulse frequency HDI setting torque

6: Multi-step torque setting

7:MODBUS communication setting torque

8~10: Reserved

Note: Setting mode 2~7, 100% corresponds to 3 times of

the motor rated current

0 ○

P03.12

Keypad setting

torque

Setting range: -300.0%~300.0%(motor rated current) 50.0% ○

P03.13

Torque given

filter time

0.000~10.000s 0.100s ○

P03.14

Setting source

of

forward

rotation

upper-limit

frequency in

t

orque control

0:keypad setting upper-limit frequency(P03.16 sets P03.14,

P03.17 sets P03.15)

1:Analog AI1 setting upper-limit frequency

2:Analog AI2 setting upper-limit frequency

3:Analog AI3 setting upper-limit frequency

4:Pulse frequency HDI setting upper-limit frequency

5:Multi-step setting upper-limit frequency

6:MODBUS communication setting upper-limit frequency

0 ○

P03.15

Setting source

of reverse

0 ○

Goodrive20 inverters Function Parameters

43

Function

code

Name Detailed instruction of parameters

Default

value

Modify

rotation

upper-limit

frequency in

torque control

7~9: Reserved

Note: setting method 1~9, 100% corresponds to the

maximum frequency

P03.16

Torque control

forward

rotation

upper-limit

frequency

keypad defined

value

This function is used to set the upper limit of the frequency.

P03.16 sets the value of P03.14; P03.17 sets the value of

P03.15.

Setting range:0.00 Hz~P00.03 (the Max. output frequency)

50.00 Hz

○

P03.17

Torque control

reverse

rotation

upper-limit

frequency

keypad defined

value

50.00 Hz

○

P03.18

Upper-limit

setting of

electromot

ion

torque

This function code is used to select the electromotion and

braking torque upper-limit setting source selection.

0: Keypad setting upper-limit frequency (P03.20 sets

P03.18 and P03.21 sets P03.19)

1: Analog AI1 setting upper-limit torque

2: Analog AI2 setting upper-limit torque

3: Analog AI3 setting upper-limit torque

4: Pulse frequency HDI setting upper-limit torque

5: MODBUS communication setting upper-limit torque

6~8: Reserved

Note: Setting mode 1~8,100% corresponds to three times

of the motor current.

0 ○

P03.19

Upper-limit

setting of

braking torque

0 ○

P03.20

Electromotion

torque

upper-limit

keypad setting

The function code is used to set the limit of the torque.

Setting range:0.0~300.0%(motor rated current)

180.0%

○

P03.21

Braking

torque

upper-limit

keypad setting

180.0%

○

P03.22

Weakening

coefficient in

The usage of motor in weakening control.

Function code P03.22 and P03.23 are effective at constant

0.3 ○

Goodrive20 inverters Function Parameters

44

Function

code

Name Detailed instruction of parameters

Default

value

Modify

constant power

zone

power. The motor will enter into the weakening state when

the motor runs at rated speed. Change the weakening curve

by modifying the weakening control coefficient. The bigger

the weakening control coefficient is, the steeper the weak

curve is.

The setting range of P03.22:0.1~2.0

The setting range of P03.23:10%~100%

P03.23

The lowest

weakening

point in

constant

power

zone

20% ○

P03.24

Max. voltage

limit

P03.24 set the Max. Voltage of the inverter, which is

dependent on the site situation.

The setting range:0.0~120.0%

100.0%

◎

P03.25

Pre-exciting

time

Pre-activate the motor when the inverter starts up. Build up

a magnetic field inside the motor to improve the torque

performance during the starting process.

The setting time:0.000~10.000s

0.300s ○

P03.26

Weakening

proportional

gain

0~8000 1200 ○

P03.27

Speed

display

selection of

vector control

0: Display at the actual value

1: Display at the setting value

0 ○

P04 Group SVPWM control

P04.00

V/F curve

setting

These function codes define the V/F curve of Goodrive20

motor 1 to meet the need of different loads.
0:Straight line V/F curve；applying to the constant torque

load

1: Multi-dots V/F curve

2: 1.3th power low torque V/F curve

3: 1.7th power low torque V/F curve

4: 2.0th power low torque V/F curve

Curves 2~4 apply to the torque loads such as fans and

water pumps. Users can adjust according to the features of

the loads to get the best performance.

5:Customized V/F(V/F separation); in this mode, V can be

separated from f and f can be adjusted through the

frequency given channel set by P00.06 or the voltage given

channel set by P04.27 to change the feature of the curve.

Note: Vb in the below picture is the motor rated voltage and

fb is the motor rated frequency.

0 ◎

Goodrive20 inverters Function Parameters

45

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P04.01 Torque boost Torque boost to the output voltage for the features of low

frequency torque. P04.01 is for the Max. output voltage Vb.

P04.02 defines the percentage of closing frequency of

manual torque to fb.

Torque boost should be selected according to the load. The

bigger the load is, the bigger the torque is. Too big torque

boost is inappropriate because the motor will run with over

magnetic, and the current of the inverter will increase to add

the temperature of the inverter and decrease the efficiency.

When the torque boost is set to 0.0%, the inverter is

automatic torque boost.

Torque boost threshold: below this frequency point, the

torque boost is valid, but over this frequency point, the

torque boost is invalid.

The setting range of P04.01:0.0%:(automatic) 0.1%~10.0%

The setting range of P04.02:0.0%~50.0%

0.0% ○

P04.02

Torque boost

close

20.0% ○

P04.03

V/F

frequency

point

1

When P04.00 =1, the user can set V//F curve through

0.00Hz

○

P04.04

V/F

voltage point 1

0.0% ○

P04.05

V/F

f

requency point

2

0.00Hz

○

P04.06

V/F

voltage point 2

0.0% ○

Goodrive20 inverters Function Parameters

46

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P04.07

V/F

f

requency point

3

P04.03~P04.08.

V/F is generally set according to the load of the motor.
Note:V1＜V2＜V3, f1＜f2＜f3. Too high low frequency

voltage will heat the motor excessively or damage.

Overcurrent stall or overcurrent protection may occur.

The setting range of P04.03: 0.00Hz~P04.05

The setting range of P04.04, P04.06 and P04.08 :

0.0%~110.0% (rated motor voltage)

The setting range of P04.05:P04.03~ P04.07

The setting range of P04.07:P04.05~P02.02(rated motor

voltage frequency)

0.00Hz

○

P04.08

V/F

voltage point 3

0.0% ○

P04.09

V/F slip

compensation

gain

This function code is used to compensate the change of the

rotation speed caused by load during compensation

SVPWM control to improve the rigidity of the motor. It can

be set to the rated slip frequency of the motor which is

counted as below:

△f=fb-n*p/60

Of which, fb is the rated frequency of the motor, its function

code is P02.02; n is the rated rotating speed of the motor

and its function code is P02.03; p is the pole pair of the
motor. 100.0% corresponds to the rated slip frequency△f.

Setting range:0.0~200.0%

100.0%

○

P04.10

Low frequency

vibration

control factor

In the SVPWM control mode, current fluctuation may occur

to the motor on some frequency, especially the motor with

big power. The motor can not run stably or overcurrent may

occur. These phenomena can be canceled by adjusting this

parameter.

The setting range of P04.10:0~100

The setting range of P04.11:0~100

The setting range of P04.12:0.00Hz~P00.03(the Max.

frequency)

10 ○

P04.11

High frequency

vibration

control factor

10 ○

P04.12

Vibration

control

threshold

30.00 Hz

○

P04.26

Energy-saving

operation

selection

0:No operation

1:Automatic energy-saving operation

Motor on the light load conditions, automatically adjusts the

output voltage to save energy

0 ◎

P04.27

Voltage Setting

channel

Select the output setting channel at V/F curve separation.

0: Keypad setting voltage: the output voltage is determined

by P04.28.

1:AI1 setting voltage

2:AI2 setting voltage

0 ○

Goodrive20 inverters Function Parameters

47

Function

code

Name Detailed instruction of parameters

Default

value

Modify

3:AI3 setting voltage

4:HDI setting voltage
5:Multi-step speed setting voltage；

6:PID setting voltage；
7:MODBUS communication setting voltage；

8~10: Reversed

Note: 100% corresponds to the rated voltage of the motor.

P04.28

Keypad setting

voltage

The function code is the voltage digital set value when the

voltage setting channel is selected as “keypad selection”

The setting range:0.0%~100.0%

100.0%

○

P04.29

Voltage

increasing time

Voltage increasing time is the time when the inverter

accelerates from the output minimum voltage to the output

maximum voltage.

Voltage decreasing time is the time when the inverter

decelerates from the output maximum voltage to the output

minimum voltage.

The setting range:0.0~3600.0s

5.0s ○

P04.30

Voltage

decreasing

time

5.0s ○

P04.31

Output

maximum

voltage

Set the upper and low limit of the output voltage.

The setting range of P04.31:P04.32~100.0%

(the rated voltage of the motor)

The setting range of P04.32:0.0%~ P04.31

(the rated voltage of the motor)

100.0%

◎

P04.32

Output

minimum

voltage

0.0% ◎

P04.33

Weakening

coefficient in

constant

power zone

Adjust the output voltage of the inverter in SVPWM mode

when weakening.

Note: Invalid in the constant torque mode.

The setting range of P04.33:1.00~1.30

1.00 ○

Goodrive20 inverters Function Parameters

48

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P05 Group Input terminals

P05.00

HDI input

selection

0: HDI is high pulse input. See P05.49~P05.54

1:HDI is switch input

0 ◎

P05.01

S1 terminals

function

selection

Note: S1~S4, HDI are the upper terminals on the control

board and P05.12 can be used to set the function of S5~S8

0: No function

1: Forward rotation operation

2: Reverse rotation operation

3: 3-wire control operation

4: Forward jogging

5: Reverse jogging

6: Coast to stop

7: Fault reset

8: Operation pause

9: External fault input

10:Increasing frequency setting(UP)

11:Decreasing frequency setting(DOWN)

12:Cancel the frequency change setting

13:Shift between A setting and B setting

14:Shift between combination setting and A setting

15:Shift between combination setting and B setting

16:Multi-step speed terminal 1

17:Multi-step speed terminal 2

18:Multi-step speed terminal 3

19:Multi- stage speed terminal 4

20:Multi- stage speed pause

21:ACC/DEC time 1

22:ACC/DEC time 2

23:Simple PLC stop reset

24:Simple PLC pause

25:PID control pause

26:Traverse Pause(stop at the current frequency)

27:Traverse reset(return to the center frequency)

28:Counter reset

29:Torque control prohibition

30:ACC/DEC prohibition

31:Counter trigger

32:Reserve

33:Cancel the frequency change setting temporarily

1 ◎

P05.02

S2 terminals

function

selection

4 ◎

P05.03

S3 terminals

function

selection

7 ◎

P05.04

S4 terminals

function

selection

0 ◎

P05.05

S5 terminals

function

selection

0 ◎

P05.06

S6 terminals

function

selection

0 ◎

P05.07

S7 terminals

function

selection

0 ◎

P05.08

S8 terminals

function

selection

0 ◎

P05.09

HDI terminals

function

selection

0 ◎

Goodrive20 inverters Function Parameters

49

Function

code

Name Detailed instruction of parameters

Default

value

Modify

34:DC brake

35: Reserve

36:Shift the command to the keypad

37:Shift the command to the terminals

38:Shift the command to the communication

39:Pre-magnetized command

40:Clear the power

41:Keep the power

42~60:Reserved

61: PID pole switching

62~63: Reserved

P05.10

Polarity

selection of the

input terminals

The function code is used to set the polarity of the input

terminals.

Set the bit to 0, the input terminal is anode.

Set the bit to 1, the input terminal is cathode.

BIT8 BIT7 BIT6 BIT5 BIT4

HDI S8 S7 S6 S5

BIT3 BIT2 BIT1 BIT0

S4 S3 S2 S1

The setting range:0x000~0x1FF

0x000 ○

P05.11

Switch filter

time

Set the sample filter time of S1~S4 and HDI terminals. If the

interference is strong, increase the parameter to avoid

wrong operation.

0.000~1.000s

0.010s ○

P05.12

Virtual

terminals

setting

0x000~0x1FF(0: Disabled, 1:Enabled )

BIT0:S1 virtual terminal

BIT1:S2 virtual terminal

BIT2:S3 virtual terminal

BIT3:S4 virtual terminal

BIT4:S5 virtual terminal

BIT5:S6 virtual terminal

BIT6:S7 virtual terminal

BIT7:S8 virtual terminal

BIT8:HDI virtual terminal

0x000 ◎

P05.13

Terminals

control running

mode

Set the operation mode of the terminals control

0:2-wire control 1, comply the enable with the direction. This

mode is widely used. It determines the rotation direction by

the defined FWD and REV terminals command.

0 ◎

Goodrive20 inverters Function Parameters

50

Function

code

Name Detailed instruction of parameters

Default

value

Modify

FWD

REV

COM

K1

K2

Running

command

FWD REV

OFF OFF

OFF

OFFONON

ON ON

Stopping

Hold on

Forward

running

Reverse

running

1:2-wire control 2; Separate the enable from the direction.

FWD defined by this mode is the enabling ones. The

direction depends on the state of the defined REV.

2:3-wire control 1; Sin is the enabling terminal on this mode,

and the running command is caused by FWD and the

direction is controlled by REV. Sin is natural closed.

The direction control is as below during operation:

Sln REV

Previous

direction

Current

direction

ON OFF→ON

Forward Reverse

Reverse Forward

Goodrive20 inverters Function Parameters

51

Function

code

Name Detailed instruction of parameters

Default

value

Modify

ON ON→OFF

Reverse Forward

Forward Reverse

ON→

OFF

ON

Decelerate to stop

OFF

3:3-wire control 2; Sin is the enabling terminal on this mode,

and the running command is caused by SB1 or SB3 and

both of them control the running direction.NC SB2

generates the stop command.

COM

SB2

SB1

FWD

REV

SIn

SB3

Sln FWD REV Direction

ON OFF→ON

ON Forward

OFF Reverse

ON

ON

OFF→ON

Forward

OFF Reverse

ON→

OFF

Decelerate

to stop

Note: for the 2-wire running mode, when FWD/REV

terminal is valid, the inverter stop because of the stopping

command from other sources, even the control terminal

FWD/REV keeps valid; the inverter won’t work when the

stopping command is canceled. Only when FWD/REV is

relaunched, the inverter can start again. For example, the

valid STOP/RST stop when PLC signal cycles stop,

fixed-length stop and terminal control (see P07.04).

Goodrive20 inverters Function Parameters

52

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P05.14

S1 terminal

switching on

delay time

The function code defines the corresponding delay time of

electrical level of the programmable terminals from

switching on to switching off.

Setting range:0.000~50.000s

0.000s

○

P05.15

S1

terminal

switching off

delay time

0.000s

○

P05.16

S2 terminal

switching on

delay time

0.000s

○

P05.17

S2

terminal

switching off

delay time

0.000s

○

P05.18

S3 terminal

switching on

delay time

0.000s

○

P05.19

S3

terminal

switching off

delay time

0.000s

○

P05.20

S4 terminal

switching on

delay time

0.000s

○

P05.21

S4

terminal

switching off

delay time

0.000s

○

P05.30

HDI

terminal

switching on

delay time

0.000s

○

P05.31

HDI

terminal

switching off

delay time

0.000s

○

P05.32

Lower limit of

AI1

AI1 is set by the analog potentiometer, AI2 is set by control

terminal AI2 and AI3 is set by control terminal AI3. The

function code defines the relationship between the analog

0.00V

○

P05.33

Corresponding

0.0%

○

Goodrive20 inverters Function Parameters

53

Function

code

Name Detailed instruction of parameters

Default

value

Modify

setting of the

lower limit of

AI1

input voltage and its corresponding set value. If the analog

input voltage beyond the set minimum or maximum input

value, the inverter will count at the minimum or maximum

one.

When the analog input is the current input, the

corresponding voltage of 0~20mA is 0~10V.

In different cases, the corresponding rated value of 100.0%

is different. See the application for detailed information.

The figure below illustrates different applications:

Input filter time: this parameter is used to adjust the

sensitivity of the analog input. Increasing the value properly

can enhance the anti-interference of the analog, but weaken

the sensitivity of the analog input

Note: AI1 supports 0~10V input and AI2 supports 0~10V or

0~20mA input, when AI2 selects 0~20mA input, the

corresponding voltage of 20mA is 10V. AI3 can support the

output of -10V~+10V.

The setting range of P05.32:0.00V~P05.34

The setting range of P05.33:-100.0%~100.0%

The setting range of P05.34:P05.32~10.00V

The setting range of P05.35:-100.0%~100.0%

The setting range of P05.36:0.000s~10.000s

The setting range of P05.37:0.00V~P05.39

The setting range of P05.38:-100.0%~100.0%

The setting range of P05.39:P05.37~10.00V

The setting range of P05.40:-100.0%~100.0%

The setting range of P05.41:0.000s~10.000s

The setting range of P05.42:-10.00V~P05.44

The setting range of P05.43:-100.0%~100.0%

The setting range of P05.44:P05.42~P05.46

The setting range of P05.45:-100.0%~100.0%

P05.34

Upper limit of

AI1

10.00V

○

P05.35

Corresponding

setting of

the upper limit

of AI1

100.0%

○

P05.36

AI1 input filter

time

0.100s

○

P05.37

Lower limit of

AI2

0.00V

○

P05.38

Corresponding

setting of the

lower limit of

AI2

0.0%

○

P05.39

Upper limit of

AI2

10.00V

○

P05.40

Corresponding

setting of

the upper limit

of AI2

100.0%

○

P05.41

AI2 input filter

time

0.100s

○

P05.42

Lower limit of

AI3

-10.00V

○

P05.43

Corresponding

setting of the

lower limit of

AI3

-100.0%

○

P05.44

Middle

value of

AI3

0.00V

○

P05.45

Corresponding

middle setting

of AI3

0.0%

○

P05.46

Upper limit of

AI3

10.00V

○

P05.47

Corresponding

100.0%

○

Goodrive20 inverters Function Parameters

54

Function

code

Name Detailed instruction of parameters

Default

value

Modify

setting of

the upper limit

of AI3

The setting range of P05.46:P05.44~10.00V

The setting range of P05.48:0.000s~10.000s

P05.48

AI3 input filter

time

0.100s

○

P05.50

Lower limit

frequency of

HDI

0.000kHz~P05.52

0.000
kHz

○

P05.51

Corresponding

setting of HDI

low frequency

setting

-100.0%~100.0%

0.0%

○

P05.52

Upper limit

frequency of

HDI

P05.50~50.000kHz

50.000
kHz

○

P05.53

Corresponding

setting of upper

limit frequency

of HDI

-100.0%~100.0%

100.0%

○

P05.54

HDI frequency

input filter time

0.000s~10.000s

0.100s

○

P06 Group Output terminals

P06.01

Y1 output

selection

0:Invalid

1:In operation

2:Forward rotation operation

3:Reverse rotation operation

4: Jogging operation

5:The inverter fault

6:Frequency degree test FDT1

7:Frequency degree test FDT2

8:Frequency arrival

9:Zero speed running

10:Upper limit frequency arrival

11:Lower limit frequency arrival

12:Ready for operation

13:Pre-magnetizing

14:Overload pre-alarm

15: Underload pre-alarm

16:Completion of simple PLC stage

0

P06.03

Relay RO1

output

selection

1 ○

P06.04

Relay RO2

output

selection

5 ○

Goodrive20 inverters Function Parameters

55

Function

code

Name Detailed instruction of parameters

Default

value

Modify

17:Completion of simple PLC cycle

18:Setting count value arrival

19:Defined count value arrival

20:External fault valid

21: Reserved

22:Running time arrival

23:MODBUS communication virtual terminals output

24~25:Reserved

26: Establishment of DC bus voltage

27~30:Reserved

P06.05

Polarity

selection of

output

terminals

The function code is used to set the pole of the output

terminal.

When the current bit is set to 0, input terminal is positive.

When the current bit is set to 1, input terminal is negative.

BIT3 BIT2 BIT1 BIT0

RO2 RO1 Reserved Y1

Setting range:0~F

0

○

P06.06

Y1 open delay

time

The setting range:0.000~50.000s 0.000s ○

P06.07

Y1C off delay

time

The setting range:0.000~50.000s 0.000s ○

P06.10

RO1 switching

on delay time

The function code defines the corresponding delay time of

the electrical level change during the programmable

terminal switching on and off.

The setting range :0.000~50.000s

Note: P06.08 and P06.08 are valid only when P06.00=1.

0.000s

○

P06.11

RO1 switching

off delay time

0.000s

○

P06.12

RO2 switching

on delay time

0.000s

○

P06.13

RO2 switching

off delay time

0.000s

○

P06.14

AO1 output

selection

0:Running frequency

1:Setting frequency

2:Ramp reference frequency

3:Running rotation speed

4:Output current (relative to 2 times of the rated current of

the inverter)

5:Output current(relative to 2 times of the rated current of

the motor)

6:Output voltage

0

○

P06.15

AO2 output

selection

0

○

Goodrive20 inverters Function Parameters

56

Function

code

Name Detailed instruction of parameters

Default

value

Modify

7:Output power

8:Set torque value

9:Output torque

10:Analog AI1 input value

11:Analog AI2 input value

12:Analog AI3 input value

13:High speed pulse HDI input value

14:MODBUS communication set value 1

15:MODBUS communication set value 2

16~21: Reserved

22:Torque current (corresponds to 3 times of the rated

current of the motor)

23: Ramp reference frequency (with sign)

24~30: Reserved

P06.17

Lower limit of

AO1 output

The above function codes define the relative relationship

between the output value and analog output. When the

output value exceeds the range of set maximum or

minimum output, it will count according to the low-limit or

upper-limit output.

When the analog output is current output, 1mA equals to

0.5V.

In different cases, the corresponding analog output of 100%

of the output value is different. Please refer to each

application for detailed information.

10 V ( 20 mA )

0 .0% 1 00. 0%

AO

Setting range of P06.17:-100.0%~ P06.19

Setting range of P06.18:0.00V~10.00V

Setting range of P06.19:P06.17~100.0%

Setting range of P06.20:0.00V~10.00V

Setting range of P06.21:0.000s~10.000s

Setting range of P06.22:-100.0%~ P06.24

Setting range of P06.23:0.00V~10.00V

Setting range of P06.24:P06.22~100.0%

Setting range of P06.25:0.00V~10.00V

Setting range of P06.26:0.000s~10.000s

0.0%

○

P06.18

Corresponding

AO1 output to

the lower limit

0.00V

○

P06.19

Upper limit of

AO1 output

100.0%

○

P06.20

The

corresponding

AO1 output to

the upper limit

10.00V

○

P06.21

AO1 output

filter time

0.000s

○

P06.22

Lower limit of

AO2 output

0.0%

○

P06.23

Corresponding

AO2 output to

the lower limit

0.00V

○

P06.24

Upper limit of

AO2 output

100.0%

○

P06.25

Corresponding

AO2 output to

the upper limit

10.00V

○

P06.26

AO2 output

filter time

0.000s

○

Goodrive20 inverters Function Parameters

57

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P07 Group Human-Machine Interface

P07.00

User’s

password

0~65535

The password protection will be valid when setting any

non-zero number.

00000: Clear the previous user’s password, and make the

password protection invalid.

After the user’s password becomes valid, if the password is

incorrect, users cannot enter the parameter menu. Only

correct password can make the user check or modify the

parameters. Please remember all users’ passwords.

Retreat editing state of the function codes and the password

protection will become valid in 1 minute. If the password is

available, press PRG/ESC to enter into the editing state of

the function codes, and then “0.0.0.0.0” will be displayed.

Unless input right password, the operator can not enter into

it.

Note: Restoring to the default value can clear the

password, please use it with caution.

0 ○

P07.01

Parameter

copy

0:No operation

1:Upload the local function parameter to the keypad

2:Download the keypad function parameter to local

address(including the motor parameters)

3:Download the keypad function parameter to local address

(excluding the motor parameter of P02 and P12 group)

4:Download the keypad function parameters to local

address (only for the motor parameter of P02 and P12

group)

Note: After finish 1~4, the parameter will restore to 0 and

the uploading and downloading does not include P29.

0 ◎

P07.02

Key

function

selection

0x00~0x27
Ones：QUICK/JOG key function
0：Null
1：Jogging
2：Switch display state via shift key
3：Switch between FWD/REV rotation
4：Clear UP/DOWN setting
5：Coast to stop

0x01 ◎

Goodrive20 inverters Function Parameters

58

Function

code

Name Detailed instruction of parameters

Default

value

Modify

6：Switch running command ref. mode in order

7：Quick commission mode (based on non-default

parameter)

tens：
0：keys unlocked

1：Lock all keys
2：Lock part of the keys (lock PRG/ESC key only)

P07.03

QUICK/JOG

the shifting

sequence of

running

command

When P07.02=6, set the shifting sequence of running

command channels.

0:Keypad control→terminals control →communication

control

1:Keypad control←→terminals control

2:Keypad control←→communication control

3:Terminals control←→communication control

0

○

P07.04

STOP/RST

stop function

Select the stop function by STOP/RST. STOP/RST is

effective in any state for the keypad reset.

0:Only valid for the keypad control

1:Both valid for keypad and terminals control

2:Both valid for keypad and communication control

3:Valid for all control modes

0

○

P07.05

Displayed

parameters 1

of running state

0x0000~0xFFFF

BIT0:running frequency (Hz on)

BIT1:set frequency(Hz flickering)

BIT2:bus voltage (Hz on)

BIT3:output voltage(V on)

BIT4:output current(A on)

BIT5:running rotation speed (rpm on)

BIT6:output power(% on)

BIT7:output torque(% on)

BIT8:PID reference(% flickering)

BIT9:PID feedback value(% on)

BIT10:input terminals state

BIT11:output terminals state

BIT12:torque set value(% on)

BIT13:pulse counter value

BIT14:reserved

BIT15:PLC and the current step of multi-step speed

0x03FF

○

Goodrive20 inverters Function Parameters

59

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P07.06

Displayed

parameters 2

of running state

0x0000~0xFFFF

BIT0: analog AI1 value (V on)

BIT1: analog AI2 value (V on)

BIT2: analog AI3 value (V on)

BIT3: high speed pulse HDI frequency

BIT4: motor overload percentage (% on)

BIT5: the inverter overload percentage (% on)

BIT6: ramp frequency given value(Hz on)

BIT7: linear speed

BIT8: AC inlet current (A on)

BIT9~15:reserved

0x0000

P07.07

The parameter

selection of the

stop state

0x0000~0xFFFF

BIT0:set frequency(Hz on, frequency flickering slowly)

BIT1:bus voltage (V on)

BIT2:input terminals state

BIT3:output terminals state

BIT4:PID reference (% flickering)

BIT5:PID feedback value(% flickering)

BIT6:torque reference(% flickering)

BIT7:analog AI1 value(V on)

BIT8:analog AI2 value(V on)

BIT9: analog AI3 value(V on)

BIT10:high speed pulse HDI frequency

BIT11:PLC and the current step of multi-step speed

BIT12:pulse counters

BIT13~BIT15:reserved

0x00FF

○

P07.08

Frequency

display

coefficient

0.01~10.00

Displayed frequency=running frequency* P07.08

1.00

○

P07.09

Speed display

coefficient

0.1~999.9%

Mechanical rotation speed =120*displayed running

frequency×P07.09/motor pole pairs

100.0%

○

P07.10

Linear speed

displayed

coefficient

0.1~999.9%

Linear speed= Mechanical rotation speed×P07.10

1.0%

○

P07.11

Rectifier bridge

module

temperature

-20.0~120.0°C

●

P07.12

Convertering

module

-20.0~120.0°C

●

Goodrive20 inverters Function Parameters

60

Function

code

Name Detailed instruction of parameters

Default

value

Modify

temperature

P07.13

Software

version

1.00~655.35

●

P07.14

Local

accumulative

running time

0~65535h

●

P07.15

High bit of

power

consumption

Display the power used by the inverter.

The power consumption of the inverter

=P07.15*1000+P07.16

Setting range of P07.15: 0~65535 kWh(*1000)

Setting range of P07.16: 0.0~999.9 kWh

●

P07.16

Low bit of

power

consumption

●

P07.17

Reserved Reserved

●

P07.18

The rated

power of the

inverter

0.4~3000.0kW

●

P07.19

The rated

voltage of the

inverter

50~1200V

●

P07.20

The rated

current of the

inverter

0.1~6000.0A

●

P07.21

Factory bar

code 1

0x0000~0xFFFF

●

P07.22

Factory bar

code 2

0x0000~0xFFFF

●

P07.23

Factory bar

code 3

0x0000~0xFFFF

●

P07.24

Factory bar

code 4

0x0000~0xFFFF

●

P07.25

Factory bar

code 5

0x0000~0xFFFF

●

P07.26

Factory bar

code 6

0x0000~0xFFFF

●

Goodrive20 inverters Function Parameters

61

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P07.27

Current fault

type

0:No fault

1: OUt1

2: OUt2

3: OUt3

4:OC1

5:OC2

6:OC3

7:OV1

8:OV2

9:OV3

10:UV

11:Motor overload(OL1)

12:The inverter overload(OL2)

13:Input side phase loss(SPI)

14:Output side phase loss(SPO)

15:Overheat of the rectifier module(OH1)

16:Overheat fault of the inverter module(OH2)

17:External fault(EF)

18:485 communication fault(CE)

19:Current detection fault(ItE)

20:Motor antotune fault(tE)

21:EEPROM operation fault(EEP)

22:PID response offline fault(PIDE)

23: bCE

24:Running time arrival(END)

25:Electrical overload(OL3)

26：PCE
27：UPE

28：DNE

29~31:Reserved

32: ETH1

33: ETH2

34:Speed deviation fault(dEu)

35:Maladjustment(STo)

36: Underload fault(LL)

●

P07.28

Previous fault

type

●

P07.29

Previous 2 fault

type

●

P07.30

Previous 3 fault

type

●

P07.31

Previous 4 fault

type

●

Goodrive20 inverters Function Parameters

62

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P07.32

Previous 5 fault

type

●

P07.33

Current fault

running

frequency

0.00Hz

●

P07.34

Ramp

reference

frequency at

current fault

0.00Hz

P07.35

Output voltage

at the current

fault

0V

P07.36

Output current

at the current

fault

0.0A

P07.37

Current bus

voltage at the

current fault

0.0V

P07.38

The Max.

temperature at

the current fault

0.0°C

P07.39

Input terminals

state at the

current fault

0 ●

P07.40

Output

terminals state

at the current

fault

0 ●

P07.41

Reference

frequency at

previous fault

0.00Hz

●

P07.42

Ramp

reference

frequency at

previous fault

0.00Hz

●

P07.43

Output voltage

at previous

fault

0V ●

P07.44

The output

0.0A ●

Goodrive20 inverters Function Parameters

63

Function

code

Name Detailed instruction of parameters

Default

value

Modify

current at

previous fault

P07.45

Bus voltage at

previous fault

0.0V ●

P07.46

The Max.

temperature at

previous fault

0.0°C ●

P07.47

Input terminals

state at

previous fault

0 ●

P07.48

Output

terminals state

at previous

fault

0 ●

P07.49

Reference

frequency at

previous 2

faults

0.00Hz

●

P07.50

Ramp

reference

frequency at

previous 2

faults

0.00Hz

●

P07.51

Output voltage

at previous 2

faults

0V ●

P07.52

Output current

at previous 2

faults

0.0A ●

P07.53

Bus voltage at

previous 2

faults

0.0V ●

P07.54

The Max.

temperature at

previous 2

faults

0.0°C ●

P07.55

Input terminals

state at

previous 2

0 ●

Goodrive20 inverters Function Parameters

64

Function

code

Name Detailed instruction of parameters

Default

value

Modify

faults

P07.56

Output

terminals state

at previous 2

faults

0 ●

P08 Group Enhanced functions

P08.00 ACC time 2

Refer to P00.11 and P00.12 for detailed definition.

Goodrive20 series define four groups of ACC/DEC time

which can be selected by P5 group. The first group of

ACC/DEC time is the factory default one.

Setting range:0.0~3600.0s

Depend

on model

○

P08.01 DEC time 2

Depend

on model

○

P08.02 ACC time 3

Depend

on model

○

P08.03 DEC time 3

Depend

on model

○

P08.04 ACC time 4

Depend

on model

○

P08.05 DEC time 4

Depend

on model

○

P08.06

Jogging

running

frequency

This parameter is used to define the reference frequency

during jogging.

Setting range: 0.00Hz ~P00.03(the Max. frequency)

5.00Hz

○

P08.07

Jogging

running ACC

time

The jogging ACC time means the time needed if the inverter

runs from 0Hz to the Max. Frequency.

The jogging DEC time means the time needed if the inverter

goes from the Max. Frequency (P00.03) to 0Hz.

Setting range:0.0~3600.0s

Depend

on model

○

P08.08

Jogging

running DEC

time

Depend

on model

○

P08.09

Jumping

frequency 1

When the set frequency is in the range of jumping

frequency, the inverter will run at the edge of the jumping

frequency.

The inverter can avoid the mechanical resonance point by

setting the jumping frequency. The inverter can set three

jumping frequency. But this function will be invalid if all

jumping points are 0.

0.00Hz

○

P08.10

jumping

frequency

range 1

0.00Hz

○

P08.11

Jumping

frequency 2

0.00Hz

○

P08.12

Jumping

frequency

range 2

0.00Hz

○

P08.13

Jumping

frequency 3

0.00Hz

○

Goodrive20 inverters Function Parameters

65

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P08.14

Jumping

frequency

range 3

Setting range: 0.00~P00.03(the Max. frequency)

0.00Hz

○

P08.15 Traverse range

This function applies to the industries where traverse and

convolution function are required such as textile and

chemical fiber.

The traverse function means that the output frequency of

the inverter is fluctuated with the set frequency as its center.

The route of the running frequency is illustrated as below, of

which the traverse is set by P08.15 and when P08.15 is set

as 0, the traverse is 0 with no function.

Traverse range: The traverse running is limited by upper

and low frequency.

The traverse range relative to the center frequency: traverse
range AW＝center frequency×traverse range P08.15.

Sudden jumping frequency＝traverse range AW×sudden

jumping frequency range P08.16. When run at the traverse

frequency, the value which is relative to the sudden jumping

frequency.

The raising time of the traverse frequency: The time from

the lowest point to the highest one.

The declining time of the traverse frequency: The time from

the highest point to the lowest one.

The setting range of P08.15: 0.0~100.0%

(relative to the set frequency)

0.0%

○

P08.16

Sudden

jumping

frequency

range

0.0%

○

P08.17

Traverse boost

time

5.0s

○

P08.18

Traverse

declining time

5.0s

○

Goodrive20 inverters Function Parameters

66

Function

code

Name Detailed instruction of parameters

Default

value

Modify

The setting range of P08.16: 0.0~50.0%

(relative to the traverse range)

The setting range of P08.17: 0.1~3600.0s

The setting range of P08.18: 0.1~3600.0s

P08.25

Setting

counting value

The counter works by the input pulse signals of the HDI

terminals.

When the counter achieves a fixed number, the

multi-function output terminals will output the signal of “fixed

counting number arrival” and the counter go on working;

when the counter achieves a setting number, the

multi-function output terminals will output the signal of

“setting counting number arrival”, the counter will clear all

numbers and stop to recount before the next pulse.

The setting counting value P08.26 should be no more than

the setting counting value P08.25.

The function is illustrated as below:

Setting range of P08.25:P08.26~65535

Setting range of P08.26:0~P08.25

0

○

P08.26

Given counting

value

0 ○

P08.27

Setting running

time

Pre-set running time of the inverter. When the accumulative

running time achieves the set time, the multi-function digital

output terminals will output the signal of “running time

arrival”.

Setting range:0~65535min

0m ○

P08.28

Time of fault

reset

The time of the fault reset: set the fault reset time by

selecting this function. If the reset time exceeds this set

value, the inverter will stop for the fault and wait to be

repaired.

The interval time of the fault reset: The interval between the

time when the fault occurs and the time when the reset

action occurs.

Setting range of P08.28:0~10

Setting range of P08.29:0.1~100.0s

0 ○

P08.29

Interval time of

automatic fault

reset

1.0s ○

P08.30

Frequency

decreasing

ratio in drop

control

The output frequency of the inverter changes as the load.

And it is mainly used to balance the power when several

inverters drive one load.

Setting range: -50.00Hz~50.00Hz

0.00Hz

○

Goodrive20 inverters Function Parameters

67

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P08.32

FDT1 electrical

level detection

value

When the output frequency exceeds the corresponding

frequency of FDT electrical level, the multi-function digital

output terminals will output the signal of “frequency level

detect FDT” until the output frequency decreases to a value

lower than (FDT electrical level—FDT retention detection

value) the corresponding frequency, the signal is invalid.

Below is the waveform diagram:

Setting range of P08.32: 0.00Hz~P00.03

(the Max. frequency)

Setting range of P08.33 and P08.35: 0.0~100.0%

Setting range of P08.34: 0.00Hz~P00.03

(the Max. frequency)

50.00Hz

○

P08.33

FDT1 retention

detection value

5.0% ○

P08.34

FDT2 electrical

level detection

value

50.00Hz

○

P08.35

FDT2 retention

detection value

5.0% ○

P08.36

Frequency

arrival

detection value

When the output frequency is among the below or above

range of the set frequency, the multi-function digital output

terminal will output the signal of “frequency arrival”, see the

diagram below for detailed information:

The setting range:0.00Hz~P00.03(the Max. frequency)

0.00Hz

○

P08.37

Energy Braking

enable

This parameter is used to control the internal braking unit.

0:Disabled

1:Enabled

Note: Only applied to internal braking unit.

0 ○

Goodrive20 inverters Function Parameters

68

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P08.38

Energy b

raking

threshold

voltage

After setting the original bus voltage to brake the energy,

adjust the voltage appropriately to brake the load. The

factory changes with the voltage level.

The setting range:200.0~2000.0V

In order to prevent customers set the value is too large, it is

recommended setting range:

Voltage 220V 380V

Range 375~400V 685~750V

220V

voltage:

380.0V

○

380V

voltage:

700.0V

P08.39

Cooling fan

running mode

0:Rated running mode

1:The fan keeps on running after power on

0 ○

P08.40 PWM selection

0x000~0x0021

LED ones: PWM mode selection

0: PWM mode 1, three-phase modulation and

two-modulation

1: PWM mode 2, three-phase modulation

LED tens: low-speed carrier frequency limit mode

0: Low-speed carrier frequency limit mode 1, the carrier

frequency will limit to 1k or 2k if it exceeds 2k at low speed

1:Low-speed carrier frequency limit mode 2, the carrier

frequency will limit to 4k if it exceeds 4k at low speed

2: No limit

0x01 ◎

P08.41

Over

commission

selection

LED ones

0: Invalid

1: Valid

LED tens (for factory commissioning)

0: Light overcommission; in zone 1

1: Heavy overcommission; in zone 2

The default value of the inverters of 1PH 220V/3PH 380V

(≤2.2kW) and 3PH 220V (≤0.75kW) is 00;
The default value of the inverters of 3PH 380V (≥4kW) and

3PH 220V (≥1.5kW) is 01.

0x00

◎

0x01

P08.42

Keypad data

control setting

0x0000~0x1223

LED ones:frequency enable selection
0:Both ∧/∨ keys and analog potentiometer adjustments

are valid
1:Only ∧/∨ keys adjustment is valid

2:Only analog potentiometer adjustments is valid
3:Neither ∧/∨ keys nor digital potentiometer adjustments

are valid

0x0000

○

Goodrive20 inverters Function Parameters

69

Function

code

Name Detailed instruction of parameters

Default

value

Modify

LED tens: frequency control selection

0:Only valid when P00.06=0 or P00.07=0

1:Valid for all frequency setting manner

2:Invalid for multi-step speed when multi-step speed has the

priority

LED hundreds: action selection during stopping

0:Setting is valid

1:Valid during running, cleared after stopping

2:Valid during running, cleared after receiving the stop

command
LED thousands: ∧/∨ keys and analog potentiometer

integral function

0:The Integral function is valid

1:The Integral function is invalid

P08.43

Integral ratio

of

the keypad

potentiometer

0.01~10.00s 0.10s

○

P08.44

UP/DOWN

terminals

control setting

0x00~0x221

LED ones: frequency control selection

0:UP/DOWN terminals setting valid

1:UP/DOWN terminals setting valid

LED tens: frequency control selection

0:Only valid when P00.06=0 or P00.07=0

1:All frequency means are valid

2:When the multi-step are priority, it is invalid to the

multi-step

LED hundreds: action selection when stop

0:Setting valid

1: Valid in the running, clear after stop

2: Valid in the running, clear after receiving the stop

commands

0x000

○

P08.45

UP terminals

frequency

changing ratio

0.01~50.00s 0.50 s

○

P08.46

DOWN

terminals

frequency

changing ratio

0.01~50.00s 0.50 s

○

P08.47

Action

selection at

0x000~0x111

LED ones: Action selection when power off.

0x000

○

Goodrive20 inverters Function Parameters

70

Function

code

Name Detailed instruction of parameters

Default

value

Modify

power loss 0:Save when power off

1:Clear when power off

LED tens: Action selection when MODBUS set frequency

off

0:Save when power off

1:Clear when power off

LED hundreds:The action selection when other frequency

set frequency off

0:Save when power off

1:Clear when power off

P08.48

High bit of

original power

consumption

This parameter is used to set the original value of the power

consumption.

The original value of the power consumption

=P08.48*1000+ P08.49

Setting range of P08.48: 0~59999 kWh (k)

Setting range of P08.49:0.0~999.9 kWh

0 kWh

○

P08.49

Low bit of

original power

consumption

0.0 kWh

○

P08.50

Magnetic flux

braking

coefficient

This function code is used to enable magnetic flux.

0: Invalid.

100~150: the bigger the coefficient, the bigger the braking

strength.

This inverter can slow down the motor by increasing the

magnetic flux. The energy generated by the motor during

braking can be transformed into heat energy by increasing

the magnetic flux.

The inverter monitors the state of the motor continuously

even during the magnetic flux period. So the magnetic flux

can be used in the motor stop, as well as to change the

rotation speed of the motor. Its other advantages are:

Brake immediately after the stop command. It does not

need to wait the magnetic flux weaken.

The cooling is better. The current of the stator other than the

rotor increases during magnetic flux braking, while the

cooling of the stator is more effective than the rotor.

0

○

P08.51

Input power

factor of the

inverter

This function code is used to adjust the displayed current of

the AC input side.

Setting range:0.00~1.00

0.56

○

P09 Group PID control

P09.00

PID

reference

source

When the frequency command selection (P00.06, P00. 07)

is 7 or the voltage setting channel selection (P04.27) is 6,

0

○

Goodrive20 inverters Function Parameters

71

Function

code

Name Detailed instruction of parameters

Default

value

Modify

the running mode of the inverter is procedure PID

controlled.

The parameter determines the target given channel during

the PID procures.

0:Keypad digital given(P09.01)

1:Analog channel AI1 given

2:Analog channel AI2 given

3:Analog channel AI3 set

4:High speed pulse HDI set

5:Multi-step speed set

6:MODBUS communication set

7~9:Reserved

The setting target of procedure PID is a relative one, 100%

of the setting equals to 100% of the response of the

controlled system.

The system is calculated according to the relative value

(0~100.0%).

Note: Multi-step speed given, it is realized by setting P10

group parameters.

P09.01

Keypad PID

preset

When P09.00=0, set the parameter whose basic value is

the feedback value of the system.

The setting range:-100.0%~100.0%

0.0%

○

P09.02

PID feedback

source

Select the PID channel by the parameter.

0:Analog channel AI1 feedback

1:Analog channel AI2 feedback

2:Analog channel AI3 feedback

3:High speed HDI feedback

4:MODBUS communication feedback

5~7:Reserved

Note: The reference channel and the feedback channel can

not coincide, otherwise, PID can not control effectively.

0

○

P09.03

PID output

feature

0: PID output is positive: when the feedback signal exceeds

the PID reference value, the output frequency of the inverter

will decrease to balance the PID. For example, the strain

PID control during wrapup

1: PID output is negative: When the feedback signal is

stronger than the PID reference value, the output frequency

of the inverter will increase to balance the PID. For

example, the strain PID control during wrapdown

0

○

Goodrive20 inverters Function Parameters

72

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P09.04

Proportional

gain (Kp)

The function is applied to the proportional gain P of PID

input.

P determines the strength of the whole PID adjuster. The

parameter of 100 means that when the offset of PID

feedback and given value is 100%, the adjusting range of

PID adjustor is the Max. frequency (ignoring integral

function and differential function).

The setting range:0.00~100.00

1.00

○

P09.05

Interval

time(Ti)

This parameter determines the speed of PID adjustor to

carry out integral adjustment on the deviation of PID

feedback and reference.

When the deviation of PID feedback and reference is 100%,

the integral adjustor works continuously after the time

(ignoring the proportional effect and differential effect) to

achieve the Max. Frequency (P00.03) or the Max. Voltage

(P04.31). Shorter the integral time, stronger is the

adjustment

Setting range: 0.00~10.00s

0.10s

○

P09.06

Differential

time(Td)

This parameter determines the strength of the change ratio

when PID adjustor carries out integral adjustment on the

deviation of PID feedback and reference.

If the PID feedback changes 100% during the time, the

adjustment of integral adjustor (ignoring the proportional

effect and differential effect) is the Max. Frequency (P00.03)

or the Max. Voltage (P04.31). Longer the integral time,

stronger is the adjusting.

Setting range: 0.00~10.00s

0.00s

○

P09.07

Sampling

cycle(T)

This parameter means the sampling cycle of the feedback.

The modulator calculates in each sampling cycle. The

longer the sapling cycle is, the slower the response is.

Setting range: 0.001~10.000s

0.100s

○

P09.08

PID control

deviation limit

The output of PID system is relative to the maximum

deviation of the close loop reference. As shown in the

diagram below, PID adjustor stops to work during the

deviation limit. Set the function properly to adjust the

accuracy and stability of the system.

0.0% ○

Goodrive20 inverters Function Parameters

73

Function

code

Name Detailed instruction of parameters

Default

value

Modify

Setting range:0.0~100.0%

P09.09

Output upper

limit of PID

These parameters are used to set the upper and lower limit

of the PID adjustor output.

100.0 % corresponds to Max. Frequency or the Max.

Voltage of ( P04.31)

Setting range of P09.09: P09.10~100.0%

Setting range of P09.10: -100.0%~P09.09

100.0%

○

P09.10

Output lower

limit of PID

0.0%

○

P09.11

Feedback

offline

detection value

Set the PID feedback offline detection value, when the

detection value is smaller than or equal to the feedback

offline detection value, and the lasting time exceeds the set

value in P09.12, the inverter will report “PID feedback offline

fault” and the keypad will display PIDE.

Setting range of P09.11: 0.0~100.0%

Setting range of P09.12: 0.0~3600.0s

0.0% ○

P09.12

Feedback

offline

detection time

1.0s ○

P09.13

PID adjustment

selection

0x00~0x11

LED ones:

0:Keep on integral adjustment when the frequency achieves

the upper and low limit; the integration shows the change

between the reference and the feedback unless it reaches

the internal integral limit. When the trend between the

reference and the feedback changes, it needs more time to

offset the impact of continuous working and the integration

will change with the trend.

0x0001

○

Goodrive20 inverters Function Parameters

74

Function

code

Name Detailed instruction of parameters

Default

value

Modify

1: Stop integral adjustment when the frequency reaches the

upper and low limit. If the integration keeps stable, and the

trend between the reference and the feedback changes, the

integration will change with the trend quickly.

LED tens:

0:The same with the setting direction; if the output of PID

adjustment is different from the current running direction,

the internal will output 0 forcedly.

1:Opposite to the setting direction

LED hundreds:
0: Limit to the maximum frequency
1: Limit to A frequency
LED thousands:
0:A+B frequency, buffer ACC/DEC is invalid for the main
reference A frequency source

1:A+B frequency, buffer ACC/DEC is valid for the main

reference A frequency source and the ACC/DEC is

determined by time 4 of P08.04

P09.14

Proportional

gain at low

frequency (Kp)

0.00~100.00 1.00 ○

P09.15

PID command

of ACC/DEC

time

0.0~1000.0s 0.0s ○

P09.16

PID output filter

time

0.000~10.000s 0.000s ○

P10 Group Simple PLC and multi-step speed control

P10.00

Simple PLC

means

0: Stop after running once. The inverter has to be

commanded again after finishing a cycle.

1: Run at the final value after running once. After finish a

signal, the inverter will keep the running frequency and

direction of the last run.

2: Cycle running. The inverter will keep on running until

receiving a stop command and then, the system will stop.

0 ○

P10.01

Simple PLC

memory

selection

0:Power loss without memory

1:Power loss memory；PLC record the running stage and

frequency when power loss.

0 ○

P10.02

Multi-step

speed 0

100.0% of the frequency setting corresponds to the Max.

Frequency P00.03.

0.0%

○

Goodrive20 inverters Function Parameters

75

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P10.03

The running

time of stage

0

When selecting simple PLC running, set P10.02~P10.33 to

define the running frequency and direction of all stages.

Note: The symbol of multi-step determines the running

direction of simple PLC. The negative value means reverse

rotation.

multi-step speeds are in the range of --f

max~fmax

and it can be

Goodrive20 series inverters can set 16 stages speed,

selected by the combination of multi-step terminals 1~4,

corresponding to the speed 0 to speed 15.

When S1=S2=S3=S4=OFF, the frequency input manner is

selected via code P00.06 or P00.07. When all

S1=S2=S3=S4 terminals aren’t off, it runs at multi-step

which takes precedence of keypad, analog value,

high-speed pulse, PLC, communication frequency input.

Select at most 16 stages speed via the combination code of

S1, S2, S3, and S4.

The start-up and stopping of multi-step running is

determined by function code P00.06, the relationship

between S1,S2,S3,S4 terminals and multi-step speed is as

following:

S1 OFF ON OFF ON OFF ON OFF ON

0.0s

○

P10.04

Multi-step

speed 1

0.0%

○

P10.05

The running

time of stage 1

0.0s

○

P10.06

Multi-step

speed 2

0.0%

○

P10.07

The running

time of stage 2

0.0s

○

P10.08

Multi-step

speed 3

0.0%

○

P10.09

The running

time of stage 3

0.0s

○

P10.10

Multi-step

speed 4

0.0%

○

P10.11

The running

time of stage 4

0.0s

○

P10.12

Multi-step

speed 5

0.0%

○

P10.13

The running

time of stage 5

0.0s

○

P10.14

Multi-step

speed 6

0.0%

○

P10.15

The running

time of stage 6

0.0s

○

P10.16

Multi-step

speed 7

0.0%

○

P10.17

The running

time of stage 7

0.0s

○

P10.18

Multi-step

speed 8

0.0%

○

P10.19

The running

time of stage 8

0.0s

○

P10.20

Multi-step

speed 9

0.0%

○

P10.21

The running

time of stage 9

0.0s

○

Goodrive20 inverters Function Parameters

76

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P10.22

Multi-step

speed 10

S2 OFF OFF ON ON OFF OFF ON ON

S3

OFF OFF OFF OFF ON ON ON ON

S4

OFF OFF OFF OFF OFF OFF OFF OFF

step 0

1 2 3 4 5 6 7

S1

OFF ON OFF ON OFF ON OFF ON

S2

OFF OFF ON ON OFF OFF ON ON

S3

OFF OFF OFF OFF ON ON ON ON

S4 ON ON ON ON ON ON ON ON

step 8

9 10 11 12 13 14 15

Setting range of P10.(2n,1<n<17): -100.0~100.0%

Setting range of P10.(2n+1, 1<n<17):0.0~6553.5s(min)

0.0%

○

P10.23

The running

time of stage

10

0.0s

○

P10.24

Multi-step

speed 11

0.0%

○

P10.25

The running

time of stage

11

0.0s

○

P10.26

Multi-step

speed 12

0.0%

○

P10.27

The running

time of stage

12

0.0s

○

P10.28

Multi-step

speed 13

0.0%

○

P10.29

The running

time of stage

13

0.0s

○

P10.30

Multi-step

speed 14

0.0%

○

P10.31

The running

time of stage

14

0.0s

○

P10.32

Multi-step

speed 15

0.0%

○

P10.33

The running

time of stage

15

0.0s

○

P10.34

Simple PLC

0~7 stage

ACC/DEC

time

selection

Below is the detailed instruction:

Function

code

Binary bit Step

ACC/

DEC 0

ACC/

DEC 1

ACC/

DEC 2

ACC/

DEC 3

P10.34

BIT1 BIT0 0

00 01 10 11

BIT3 BIT2 1

00 01 10 11

BIT5 BIT4 2

00 01 10 11

BIT7 BIT6 3

00 01 10 11

0x0000

○

P10.35

Simple PLC

8~15 stage

ACC/DEC time

selection

0x0000

○

Goodrive20 inverters Function Parameters

77

Function

code

Name Detailed instruction of parameters

Default

value

Modify

BIT9 BIT8 4

00 01 10 11

BIT11 BIT10 5

00 01 10 11

BIT13 BIT12 6

00 01 10 11

BIT15 BIT14 7

00 01 10 11

P10.35

BIT1 BIT0 8

00 01 10 11

BIT3 BIT2 9

00 01 10 11

BIT5 BIT4 10 00 01 10

11

BIT7 BIT6 11 00 01 10

11

BIT9 BIT8 12 00 01 10

11

BIT11 BIT10 13 00 01 10

11

BIT13 BIT12 14 00 01 10

11

BIT15 BIT14 15 00 01 10

11

After the users select the corresponding ACC/DEC time, the

combining 16 binary bit will change into decimal bit, and

then set the corresponding function codes.

Setting range: -0x0000~0xFFFF

P10.36

PLC restart

mode

0: Restart from the first stage; stop during running (cause by

the stop command, fault or power loss), run from the first

stage after restart.

1: Continue to run from the stop frequency; stop during

running(cause by stop command and fault), the inverter will

record the running time automatically, enter into the stage

after restart and keep the remaining running at the setting

frequency.

0

◎

P10.37

Multi-step time

unit selection

0: Seconds; the running time of all stages is counted by

second

1: Minutes; the running time of all stages is counted by

minute

0

◎

P11 Group Protective parameters

Goodrive20 inverters Function Parameters

78

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P11.00

Phase loss

protection

0x00~0x11

LED ones:

0: Input phase loss software protection disable

1: Input phase loss software protection enable

LED tens:

0: Output phase loss protection disable

1: Output phase loss protection enable

LED hundreds:

0: Input phase loss hardware protection disable

1: Input phase loss hardware protection enable

0x10

○

P11.01

Frequency-dec

reasing at

sudden power

loss

0: Enabled

1: Disabled

0

○

P11.02

Frequency

decreasing

ratio

at sudden

power loss

Setting range: 0.00Hz/s~P00.03 (the Max. frequency)

After the power loss of the grid, the bus voltage drops to the

sudden frequency-decreasing point, the inverter begin to

decrease the running frequency at P11.02, to make the

inverter generate power again. The returning power can

maintain the bus voltage to ensure a rated running of the

inverter until the recovery of power.

Voltage degree 220V 380V 660V

Frequency-decreasing

point at sudden power

loss

260V 460V 800V

Note: 1. Adjust the parameter properly to avoid the stopping

caused by inverter protection during the switching of the

grid.

2. Prohibit the input phase loss protection to enable this

function.

10.00

Hz/s

○

P11.03

Overvoltage

stall protection

0:Disabled

1:Enabled

1

○

Goodrive20 inverters Function Parameters

79

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P11.04

Overvoltage

stall voltage

protection

120~150%(standard bus voltage)(380V) 136%

○

120~150%(standard bus voltage)(220V) 120%

P11.05

Current limit

action

The actual increasing ratio is less than the ratio of output

frequency because of the big load during ACC running. It is

necessary to take measures to avoid overcurrent fault and

the inverter trips.

During the running of the inverter, this function will detect

the output current and compare it with the limit level defined

in P11.06. If it exceeds the level, the inverter will run at

stable frequency in ACC running, or the inverter will derate

to run during the constant running. If it exceeds the level

continuously, the output frequency will keep on decreasing

to the lower limit. If the output current is detected to be lower

than the limit level, the inverter will accelerate to run.

Setting range of P11.05:

0:current limit invalid

1:current limit valid

2:current limit is invalid during constant speed

Setting range of P11.05:0x00~0x12

Setting range of P11.06:50.0~200.0%

Setting range of P11.07:0.00~50.00Hz/s

0x01

◎

P11.06

Automatic

current limit

level

G:

160.0%

◎

P11.07

The decreasing

ratio during

current limit

10.00
Hz/s

◎

P11.08

Overload

pre-alarm of

the motor/

inverter

The output current of the inverter or the motor is above

P11.09 and the lasting time is beyond P11.10, overload

pre-alarm will be output.

0x000

○

P11.09

Overload

pre-alarm test

level

150%

○

P11.10

Overload

pre-alarm

detection time

1.0s

○

Goodrive20 inverters Function Parameters

80

Function

code

Name Detailed instruction of parameters

Default

value

Modify

Setting range of P11.08:

Enable and define the overload pre-alarm of the inverter or

the motor.

Setting range: 0x000~0x131

LED ones:

0:Overload pre-alarm of the motor, comply with the rated

current of the motor

1:Overload pre-alarm of the inverter, comply with the rated

current of the inverter

LED tens:

0:The inverter continues to work after underload pre-alarm

1:The inverter continues to work after underload pre-alarm

and the inverter stops to run after overload fault

2: The inverter continues to work after overload pre-alarm

and the inverter stops to run after underload fault

3. The inverter stops when overloading or underloading.

LED hundreds :

0:Detection all the time

1:Detection in constant running

Setting range of P11.09: P11.11~200%

Setting range of P11.10: 0.1~3600.0s

P11.11

Detection level

of the

underload

pre-alarm

If the inverter current or the output current is lower than

P11.11, and its lasting time is beyond P11.12, the inverter

will output underload pre-alarm.

Setting range of P11.11: 0~P11.09

Setting range of P11.12: 0.1~3600.0s

50%

○

P11.12

Detection time

of the

underload

pre-alarm

1.0s

○

P11.13

Output terminal

action selection

Select the action of fault output terminals on undervoltage

and fault reset.

0x00

○

Goodrive20 inverters Function Parameters

81

Function

code

Name Detailed instruction of parameters

Default

value

Modify

during fault 0x00~0x11

LED ones:

0:Action under fault undervoltage

1:No action under fault undervoltage

LED tens:

0:Action during the automatic reset

1:No action during the automatic reset

P11.14

Speed

deviation

detection

0.0~50.0%

Set the speed deviation detection time.

10.0% ○

P11.15

Speed

deviation

detection time

This parameter is used to set the speed deviation detection
time.

Setting range of P11.15: 0.0~10.0s

0.5s ○

P11.16

Automatic

frequency-de

creasing at

voltage drop

0:Invalid

1:Valid; ensure rated output torque when voltage drop

0x00 ○

P13 Group Control parameters of SM

P13.13

Braking

current of

short circuit

After the inverter starts, when P01.00=0, set P13.14 to

non-zero value and begin short circuit braking.

After the inverter stops, when the operation frequency is

less than P01.09, set P13.15 to non-zero value and begin

stopping short-circuit braking and then DC braking.

Setting range of P13.13: 0.0~150.0%(inverters)

Setting range of P13.14: 0.00~50.00s

0.0% ○

P13.14

Braking

retention time

of starting

short circuit

0.00s ○

P13.15

Braking

retention time

of stopping

short circuit

0.00s ○

P14 Group Serial communication

Goodrive20 inverters Function Parameters

82

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P14.00

local

communication

address

The setting range:1~247

When the master is writing the frame, the communication

address of the slave is set to 0; the broadcast address is the

communication address. All slaves on the MODBUS

fieldbus can receive the frame, but the salve doesn’t

answer.

The communication address of the drive is unique in the

communication net. This is the fundamental for the point to

point communication between the upper monitor and the

drive.

Note: The address of the slave cannot set to 0.

1

○

P14.01

Communication

baud ratio

Set the digital transmission speed between the upper

monitor and the inverter.

0:1200BPS

1:2400BPS

2:4800BPS

3:9600BPS

4:19200BPS

5:38400BPS

6: 57600BPS

Note: The baud rate between the upper monitor and the

inverter must be the same. Otherwise, the communication is

not applied. The bigger the baud rate, the quicker the

communication speed.

4

○

P14.02

Digital bit

checkout

The data format between the upper monitor and the inverter

must be the same. Otherwise, the communication is not

applied.

0: No check (N,8,1)for RTU

1: Even check (E,8,1)for RTU

2: Odd check (O,8,1)for RTU

3:No check (N,8,2)for RTU

4: Even check (E,8,2)for RTU

5: Odd check(O,8,2)for RTU

6: No check（N,7,1）for ASCII
7: Even check（E,7,1）for ASCII

8: Odd check（O,7,1）for ASCII
9: No check（N,7,2）for ASCII

10: Even check（E,7,2）for ASCII
11: Odd check（O,7,2）for ASCII

12: No check（N,8,1）for ASCII

1

○

Goodrive20 inverters Function Parameters

83

Function

code

Name Detailed instruction of parameters

Default

value

Modify

13: Even check（E,8,1）for ASCII

14: Odd check（O,8,1）for ASCII
15: No check（N,8,2）for ASCII

16: Even check（E,8,2）for ASCII
17: Odd check（O,8,2）for ASCII

P14.03

Communication

answer delay

0~200ms

It means the interval time between the interval time when

the drive receive the data and sent it to the upper monitor. If

the answer delay is shorter than the system processing

time, then the answer delay time is the system processing

time, if the answer delay is longer than the system

processing time, then after the system deal with the data,

waits until achieving the answer delay time to send the data

to the upper monitor.

5

○

P14.04

Communication

overtime fault

time

0.0(invalid),0.1~60.0s

When the function code is set as 0.0, the communication

overtime parameter is invalid.

When the function code is set as non-zero, if the interval

time between two communications exceeds the

communication overtime, the system will report “485

communication faults” (CE).

0.0s

○

P14.05

Transmission

fault

processing

0:Alarm and stop freely

1:No alarm and continue to run

2:No alarm and stop according to the stop means(only

under the communication control)

3:No alarm and stop according to the stop means(under all

control modes)

0

○

P14.06

Communication

processing

0x00~0x11

LED ones:

0: Write with response: the inverter will respond to all

reading and writing commands of the upper monitor.

1: Write without response: the inverter only responds to the

reading command other than the writing command of the

drive. The communication efficiency can be increased by

this method.

LED tens:(reserved)

0: Communication encrypting valid

1: Communication encrypting invalid

0x00

○

P14.07

Reserved

●

Goodrive20 inverters Function Parameters

84

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P14.08

Reserved

●

P17 Group Monitoring function

P17.00

Setting

frequency

Display current set frequency of the inverter

Range: 0.00Hz~P00.03

●

P17.01

Output

frequency

Display current output frequency of the inverter

Range: 0.00Hz~P00.03

●

P17.02

Ramp

reference

frequency

Display current ramp reference frequency of the inverter

Range: 0.00Hz~P00.03

●

P17.03 Output voltage

Display current output voltage of the inverter

Range: 0~1200V

●

P17.04 Output current

Display current output current of the inverter

Range: 0.0~5000.0A

●

P17.05 Motor speed

Display the rotation speed of the motor.

Range: 0~65535RPM

●

P17.06

Torque current

Display current torque current of the inverter

Range: 0.0~5000.0A

●

P17.07

Magnetized

current

Display current magnetized current of the inverter

Range: 0.0~5000.0A

●

P17.08

Motor power

Display current power of the motor.

Setting range: -300.0%~300.0%

(the rated current of the motor)

●

P17.09

Output torque

Display the current output torque of the inverter.

Range: -250.0~250.0%

●

P17.10

The motor

frequency

evaluation

Evaluate the motor rotor frequency on open loop vector

Range: 0.00~ P00.03

●

P17.11

DC bus voltage

Display current DC bus voltage of the inverter

Range: 0.0~2000.0V

●

P17.12

Switch input

Display current Switch input terminals state of the inverter

●

Goodrive20 inverters Function Parameters

85

Function

code

Name Detailed instruction of parameters

Default

value

Modify

terminals state Range: 0000~00FF

P17.13

Switch output

terminals state

Display current Switch output terminals state of the inverter

Range: 0000~000F

●

P17.14

Digital

adjustment

Display the adjustment through the keypad of the inverter.

Range : 0.00Hz~P00.03

●

P17.15

Torque

reference

Display the torque reference, the percentage to the current

rated torque of the motor.

Setting range: -300.0%~300.0%

(the rated current of the motor)

●

P17.16

Linear speed

Display the current linear speed of the inverter.

Range: 0~65535

●

P17.17

Reserved ●

P17.18

Counting value

Display the current counting number of the inverter.

Range: 0~65535

●

P17.19

AI1 input

voltage

Display analog AI1 input signal

Range: 0.00~10.00V

●

P17.20

AI2 input

voltage

Display analog AI2 input signal

Range: 0.00~10.00V

●

P17.21

AI3 input

voltage

Display analog AI2 input signal

Range: -10.00~10.00V

●

P17.22

HDI input

frequency

Display HDI input frequency

Range: 0.00~50.00kHz

●

P17.23

PID reference

value

Display PID reference value

Range: -100.0~100.0%

●

P17.24

PID feedback

value

Display PID feedback value

Range: -100.0~100.0%

●

P17.25

Power factor of

the motor

Display the current power factor of the motor.

Range: -1.00~1.00

●

P17.26

Current

running time

Display the current running time of the inverter.

Range:0~65535min

●

Goodrive20 inverters Function Parameters

86

Function

code

Name Detailed instruction of parameters

Default

value

Modify

P17.27

Simple PLC

and the current

stage of the

multi-step

speed

Display simple PLC and the current stage of the multi-step

speed

Range: 0~15

●

P17.28

ASR controller

output

The percentage of the rated torque of the relative motor,

display ASR controller output

Range: -300.0%~300.0% (the rated motor current )

●

P17.29

Reserved ●

P17.30

Reserved ●

P17.31

Reserved ●

P17.32

Magnetic flux

linkage

Display the magnetic flux linkage of the motor.

Range: 0.0%~200.0%

●

P17.33

Exciting current

reference

Display the exciting current reference in the vector control

mode.

Range: -3000.0~3000.0A

●

P17.34

Torque current

reference

Display the torque current reference in the vector control

mode.

Range: -3000.0~3000.0A

●

P17.35

AC input

current

Display the input current in AC side.

Range: 0.0~5000.0A

●

P17.36 Output torque

Display the output torque. Positive value is in the

electromotion state, and negative value is in the power

generating state.

Range : -3000.0Nm~3000.0Nm

●

P17.37

Motor overload

counting

0~100 (OL1 when 100) ●

P17.38

PID output

Display PID output

-100.00~100.00%

●

P17.39

Reserved ●

Goodrive20 inverters Fault tracking

87

6 Fault Tracking

6.1 Maintenance intervals

If installed in an appropriate environment, the inverter requires very little maintenance. The table lists the

routine maintenance intervals recommended by INVT.

Checking part Checking item Checking method

Criterion

Ambient environment

Check the ambient

temperature, humidity and

vibration and ensure there is

no dust, gas, oil fog and

water drop.

Visual examination

and instrument

test

Conforming to the

manual

Ensure there are no tools or

other foreign or dangerous

objects

Visual examination

There are no tools

or dangerous

objects.

Voltage

Ensure the main circuit and

control circuit are normal.

Measurement by

millimeter

Conforming to the

manual

Keypad

Ensure the display is clear

enough

Visual examination

The characters are

displayed normally.

Ensure the characters are

displayed totally

Visual examination

Conforming to the

manual

Main

circuit

For public use

Ensure the screws are

tightened scurrility

Tighten up NA

Ensure there is no distortion,

crackles, damage or

color-changing caused by

overheating and aging to the

machine and insulator.

Visual examination NA

Ensure there is no dust and

dirtiness

Visual examination

NA

Note: if the color of

the copper blocks

change, it does not

mean that there is

something wrong

with the features.

The lead of the

conductors

Ensure that there is no

distortion or color-changing

of the conductors caused by

overheating.

Visual examination NA

Ensure that there are no

crackles or color-changing of

the protective layers.

Visual examination NA

Terminals seat Ensure that there is no Visual examination NA

Goodrive20 inverters Fault tracking

88

Checking part Checking item Checking method

Criterion

damage

Filter capacitors

Ensure that there is no

weeping, color-changing,

crackles and cassis

expansion.

Visual examination NA

Ensure the safety valve is in

the right place.

Estimate the usage

time according to

the maintenance or

measure the static

capacity.

NA

If necessary, measure the

static capacity.

Measure the

capacity by

instruments.

The static capacity

is above or equal to

the original value

*0.85.

Resistors

Ensure whether there is

replacement and splitting

caused by overheating.

Smelling and visual

examination

NA

Ensure that there is no

offline.

Visual examination

or remove one

ending to coagulate

or measure with

multimeters

The resistors are in

±10% of the

standard value.

Transformers and

reactors

Ensure there is no abnormal

vibration, noise and smelling,

Hearing, smelling

and visual

examination

NA

Electromagnetism

contactors and relays

Ensure whether there is

vibration noise in the

workrooms.

Hearing NA

Ensure the contactor is good

enough.

Visual examination NA

Control

circuit

PCB and plugs

Ensure there are no loose

screws and contactors.

Fasten up NA

Ensure there is no smelling

and color-changing.

Smelling and visual

examination

NA

Ensure there are no crackles,

damage distortion and rust.

Visual examination NA

Ensure there is no weeping

and distortion to the

capacitors.

Visual examination

or estimate the

usage time

according to the

NA

Goodrive20 inverters Fault tracking

89

Checking part Checking item Checking method

Criterion

maintenance

information

Cooling

system

Cooling fan

Estimate whether there is

abnormal noise and vibration.

Hearing and Visual

examination or

rotate with hand

Stable rotation

Estimate there is no losses

screw.

Tighten up NA

Ensure there is no

color-changing caused by

overheating.

Visual examination

or estimate the

usage time

according to the

maintenance

information

NA

Ventilating duct

Ensure whether there is stuff

or foreign objection in the

cooling fan, air vent.

Visual examination NA

6.1.1 Cooling fan

The inverter’s cooling fan has a minimum life span of 25,000 operating hours. The actual life span depends

on the inverter usage and ambient temperature.

The operating hours can be found through P07.14 (accumulative hours of the inverter).

Fan failure can be predicted by the increasing noise from the fan bearings. If the inverter is operated in a

critical part of a process, fan replacement is recommended once these symptoms appear. Replacement fans

are available from INVT.

 Read and follow the instructions in chapter Safety Precautions. Ignoring the

instructions would cause physical injury or death, or damage to the equipment.

1. Stop the inverter and disconnect it from the AC power source and wait for at least the time designated on

the inverter.

2. Lever the fan holder off the drive frame with a screwdriver and lift the hinged fan holder slightly upward

from its front edge.

3. Disconnect the fan cable. Remove the installation bracket.

4. Install the bracket to the reversed direction. Pay attention the air direction of the inverter and the fan as the

figure below:

Goodrive20 inverters Fault tracking

90

Fan installation of the inverters 1PH,220V, ≤2.2kW

Fan installation of the inverters 3PH,380V,≥4kW

6.1.2 Capacitors

Reforming the capacitors

The DC bus capacitors must be reformed according to the operation instruction if the inverter has been

stored for a long time. The storing time is counted form the producing date other than the delivery data which

has been marked in the serial number of the inverter.

Time Operational principle

Storing time less than 1 year Operation without charging

Storing time 1-2 years Connect with the power for 1 hour before first ON command

Storing time 2-3 years

Use power surge to charge for the inverter

• Add 25% rated voltage for 30 minutes

• Add 50% rated voltage for 30 minutes

• Add 75% rated voltage for 30 minutes

• Add 100% rated voltage for 30 minutes

Storing time more than 3

years

Use power surge to charge for the inverter

• Add 25% rated voltage for 2 hours

• Add 50% rated voltage for 2 hours

• Add 75% rated voltage for 2 hours

• Add 100% rated voltage for 2 hours

Goodrive20 inverters Fault tracking

91

The method of using power surge to charge for the inverter:

The right selection of power surge depends on the supply power of the inverter. Single phase 220V AC/2A

power surge applied to the inverter with single/three-phase 220V AC as its input voltage. The inverter with

single/three-phase 220V AC as its input voltage can apply Single phase 220V AC/2A power surge (L+ to R

and N to S or T). All DC bus capacitors charge at the same time because there is one rectifier.

High-voltage inverter needs enough voltage (for example, 380V) during charging. The small capacitor power

(2A is enough) can be used because the capacitor nearly does not need current when charging.

Change electrolytic capacitors

 Read and follow the instructions in chapter Safety Precautions. Ignoring the

instructions may cause physical injury or death, or damage to the equipment.

Change electrolytic capacitors if the working hours of electrolytic capacitors in the inverter are above 35000.

Please contact with the local INVT offices or dial our national service hotline [phone]) for detailed
operation.

6.1.3 Power cable

 Read and follow the instructions in chapter Safety Precautions. Ignoring the

instructions may cause physical injury or death, or damage to the equipment.

1. Stop the drive and disconnect it from the power line. Wait for at least the time designated on the inverter.

2. Check the tightness of the power cable connections.

3. Restore power.

6.2 Fault solution

 Only qualified electricians are allowed to maintain the inverter. Read the safety

instructions in chapter Safety precautions before working on the inverter.

6.2.1 Alarm and fault indications

Fault is indicated by LEDs. See Operation Procedure. When TRIP light is on, an alarm or fault message on

the panel display indicates abnormal inverter state. Using the information given in this chapter, most alarm

and fault cause can be identified and corrected. If not, contact with the INVT office.

6.2.2 How to reset

The inverter can be reset by pressing the keypad key STOP/RST, through digital input, or by switching the

power light. When the fault has been removed, the motor can be restarted.

6.2.3 Fault instruction and solution

Do as the following after the inverter fault:

1. Check to ensure there is nothing wrong with the keypad. If not, please contact with the local INVT office.

2. If there is nothing wrong, please check P07 and ensure the corresponding recorded fault parameters to

confirm the real state when the current fault occurs by all parameters.

3. See the following table for detailed solution and check the corresponding abnormal state.

4. Eliminate the fault and ask for relative help.

5. Check to eliminate the fault and carry out fault reset to run the inverter.

Goodrive20 inverters Fault tracking

92

Fault code

Fault type Possible cause Solutions

OUt1 IGBT Ph-U fault  The acceleration is too fast

 IGBT module fault

 Misaction caused by

interference

 The connection of the driving

wires is not good,

 Grounding is not properly

 Increase Acc time

 Change the power unit
 Check the driving wires
 Inspect external equipment

and eliminate interference

OUt2 IGBT Ph-V fault

OUt3 IGBT Ph-W fault

OC1

Over-current when

acceleration

1. The acceleration or

deceleration is too fast.

2. The voltage of the grid is too

low.

3. The power of the inverter is

too low.

4. The load transients or is

abnormal.

5. The grounding is short

circuited or the output is phase

loss.

6. There is strong external

interference.

7. The overvoltage stall

protection is not open.

1. Increase the ACC time

2. Check the input power

3. Select the inverter with a

larger power

4. Check if the load is short

circuited (the grounding short

circuited or the wire short

circuited) or the rotation is not

smooth.

5. Check the output

configuration.

6. Check if there is strong

interference.

7. Check the setting of relative

function codes.

OC2

Over-current when

deceleration

OC3

Over-current when

constant speed

running

OV1

Over-voltage when

acceleration

1. The input voltage is abnormal.

2. There is large energy

feedback.

3. No braking components.

4. Braking energy is not open

1. Check the input power

2. Check if the DEC time of the

load is too short or the inverter

starts during the rotation of the

motor or it needs to increase the

energy consumption

components.

3. Install the braking

components.

4. Check the setting of relative

function codes.

OV2

Over-voltage when

deceleration

OV3

Over-voltage when

constant speed

running

UV DC bus Under-voltage

1. The voltage of the power

supply is too low.

2. The overvoltage stall

protection is not open.

1. Check the input power of the

supply line.

2. Check the setting of relative

function codes.

OL1 Motor overload

1. The voltage of the power

supply is too low.

2. The motor setting rated

current is incorrect.

3. The motor stall or load

transients is too strong.

1. Check the power of the supply

line

2. Reset the rated current of the

motor

3. Check the load and adjust the

torque lift

Goodrive20 inverters Fault tracking

93

Fault code

Fault type Possible cause Solutions

OL2 Inverter overload

1. The acceleration is too fast

2. Reset the rotating motor

3. The voltage of the power

supply is too low.

4. The load is too heavy.

5. Close loop vector control,

reverse direction of the code

panel and long low-speed

operation

1. Increase the ACC time

2. Avoid the restarting after

stopping.

3. Check the power of the supply

line

4. Select an inverter with bigger

power.

5. Select a proper motor.

OL3 Electrical overload

The inverter will report overload

pre-alarm according to the set

value.

Check the load and the overload

pre-alarm point.

SPI Input phase loss

Phase loss or fluctuation of input

R,S,T

1. Check input power

2. Check installation distribution

SPO Output phase loss

U,V,W phase loss input(or

serious asymmetrical three

phase of the load)

1. Check the output distribution

2. Check the motor and cable

OH1 Rectify overheat

1. Air duct jam or fan damage

2. Ambient temperature is too

high.

3. The time of overload running

is too long.

1. Refer to the overcurrent

solution

2. Redistribute

dredge the wind channel or

change the fan

3. Low the ambient temperature

4. Check and reconnect

5. Change the power

6. Change the power unit

7. Change the main control

panel

OH2 IGBT overheat

EF External fault

SI external fault input terminals

action

Check the external device input

CE Communication error

1. The baud rate setting is

incorrect.

2. Fault occurs to the

communication wiring.

3. The communication address

is wrong.

4. There is strong interference to

the communication.

1. Set proper baud rate

2. Check the communication

connection distribution

3. Set proper communication

address.

4. Chang or replace the

connection distribution or

improve the anti-interference

capability.

Goodrive20 inverters Fault tracking

94

Fault code

Fault type Possible cause Solutions

ItE Current detection fault

1. The connection of the control

board is not good

2. Assistant power is bad

3. Hoare components is broken

4. The modifying circuit is

abnormal.

1. Check the connector and

repatch

2. Change the Hoare

3. Change the main control

panel

tE Autotuning fault

1. The motor capacity does not

comply with the inverter

capability

2. The rated parameter of the

motor does not set correctly.

3. The offset between the

parameters from autotune and

the standard parameter is huge

4. Autotune overtime

1. Change the inverter mode

2. Set the rated parameter

according to the motor name

plate

3. Empty the motor load.

4. Check the motor connection

and set the parameter.

5. Check if the upper limit

frequency is above 2/3 of the

rated frequency.

EEP EEPROM fault

1. Error of controlling the write

and read of the parameters

2. Damage to EEPROM

1. Press STOP/RST to reset

2. Change the main control

panel

PIDE PID feedback fault

1. PID feedback offline

2. PID feedback source

disappear

1. Check the PID feedback

signal

2. Check the PID feedback

source

bCE Braking unit fault

1. Braking circuit fault or

damage to the braking pipes

2. The external braking resistor

is not sufficient

1. Check the braking unit and ,

change new braking pipe

2. Increase the braking resistor

END

Time reach of factory

setting

The actual running time of the

inverter is above the internal

setting running time.

Ask for the supplier and adjust

the setting running time.

PCE

Keypad

communication error

The keypad is not in good

connection or offline;

The keypad cable is too long

and there is strong interference;

Part of the communication

circuits of the keypad or main

board have fault.

Check the keypad cable and and

ensure it is normal;

Check the environment and

eliminate the interference

source;

Change hardware and ask for

maintenance service.

Goodrive20 inverters Fault tracking

95

Fault code

Fault type Possible cause Solutions

UPE

Parameter upload

error

The keypad is not in good

connection or offline;

The keypad cable is too long

and there is strong interference;

Part of the communication

circuits of the keypad or main

board have fault.

Check the environment and

eliminate the interference

source;

Change hardware and ask for

maintenance service;

Change hardware and ask for

maintenance service.

DNE

Parameter download

error

The keypad is not in good

connection or offline;

The keypad cable is too long

and there is strong interference;

Data storage error in keypad

Check the environment and

eliminate the interference

source;

Change hardware and ask for

maintenance service;

Backup data in the keypad again

ETH1

Grounding shortcut

fault 1

1.The output of the inverter is

short circuited with the ground

2.There is fault in the current

detection circuit

3.There is a great difference

between the actual motorpower

setting and the inverter power

1.Check if the connection of the

motor is normal or not

2.Change the hoare

3.Change the main control panel

4.Reset the correctmotor

parameter

ETH2

Grounding shortcut

fault 2

LL

Electronic underload

fault

The inverter will report the

underload pre-alarm according

to the set value.

Check the load and the

underload pre-alarm point.

6.2.4 Other states

Fault code

Fault type Possible cause Solutions

PoFF System power off System power off or low DC vol

tage

Check the grid

Goodrive20 inverters

Communication protocol

96

7 Communication Protocol

7.1 Brief instruction to Modbus protocol

Modbus protocol is a software protocol and common language which is applied in the electrical controller.

With this protocol, the controller can communicate with other devices via network (the channel of signal

transmission or the physical layer, such as RS485). And with this industrial standard, the controlling devices

of different manufacturers can be connected to an industrial network for the convenient of being monitored.

There are two transmission modes for Modbus protocol: ASCII mode and RTU (Remote Terminal Units)

mode. On one Modbus network, all devices should select same transmission mode and their basic

parameters, such as baud rate, digital bit, check bit, and stopping bit should have no difference.

Modbus network is a controlling network with single-master and multiple slaves, which means that there is

only one device performs as the master and the others are the slaves on one Modbus network. The master

means the device which has active talking right to sent message to Modbus network for the controlling and

inquiring to other devices. The slave means the passive device which sends data message to the Modbus

network only after receiving the controlling or inquiring message (command) form the master (response).

After the master sends message, there is a period of time left for the controlled or inquired slaves to

response, which ensure there is only one slave sends message to the master at a time for the avoidance of

singles impact.

Generally, the user can set PC, PLC, IPC and HMI as the masters to realize central control. Setting certain

device as the master is a promise other than setting by a bottom or a switch or the device has a special

message format. For example, when the upper monitor is running, if the operator clicks sending command

bottom, the upper monitor can send command message actively even it can not receive the message from

other devices. In this case, the upper monitor is the master. And if the designer makes the inverter send the

data only after receiving the command, then the inverter is the slave.

The master can communicate with any single slave or with all slaves. For the single-visiting command, the

slave should feedback a response message; for the broadcasting message from the master, the slave does
not need to feedback the response message.

7.2 Application of the inverter

The Modbus protocol of the inverter is RTU mode and the physical layer is 2-wire RS485.

7.2.1 2-wire RS485

The interface of 2-wire RS485 works on semiduplex and its data signal applies differential transmission

which is called balance transmission, too. It uses twisted pairs, one of which is defined as A (+) and the other

is defined as B (-). Generally, if the positive electrical level between sending drive A and B is among +2~+6V,

it is logic“1”, if the electrical level is among -2V~-6V; it is logic“0”.

485+ on the terminal board corresponds to A and 485- to B.

Communication baud rate means the binary bit number in one second. The unit is bit/s (bps). The higher the

baud rate is, the quicker the transmission speed is and the weaker the anti-interference is. If the twisted pairs

of 0.56mm (24AWG) is applied as the communication cables, the Max. Transmission distance is as below:

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Baud

rate

Max.transmission

distance

Baud

rate

Max.transmission

distance

Baud

rate

Max.transmission

distance

Baud

rate

Max.transmission

distance

2400

BPS

1800m

4800

BPS

1200m

9600

BPS

800m

19200

BPS

600m

It is recommended to use shield cables and make the shield layer as the grounding wires during RS485

remote communication.

In the cases with less devices and shorter distance, it is recommended to use 120Ω terminal resistor as the

performance will be weakened if the distance increase even though the network can perform well without

load resistor.

7.2.1.1 Single application

Figure 1 is the site Modbus connection figure of single inverter and PC. Generally, the computer does not

have RS485 interface, the RS232 or USB interface of the computer should be converted into RS485 by

converter. Connect the A terminal of RS485 to the 485+ terminal of the inverter and B to the 485- terminal. It

is recommended to use the shield twisted pairs. When applying RS232-RS485 converter, if the RS232

interface of the computer is connected to the RS232 interface of the converter, the wire length should be as

short as possible within the length of 15m. It is recommended to connect the RS232-RS485 converter to the

computer directly. If using USB-RS485 converter, the wire should be as short as possible, too.

Select a right interface to the upper monitor of the computer (select the interface of RS232-RS485 converter,

such as COM1) after the wiring and set the basic parameters such as communication baud rate and digital
check bit to the same as the inverter.

Figure 1 RS485 physical connection in single application

7.2.1.2 Multi-applications

In real multi-applications, the chrysanthemum connection and star connection are commonly used.

Chrysanthemum chain connection is required in the RS485 industrial fieldbus standards. The two ends are
connected to terminal resistors of 120Ω which is shown as figure 2.

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Figure 2 Chrysanthemum connection applications

Figure 3 is the star connection. Terminal resistor should be connected to the two devices which have the

longest distance. (1# and 15#device)

Figure 3 star connection

It is recommended to use shield cables in multiple connection. The basic parameter of the devices, such as

baud rate and digital check bit in RS485 should be the same and there should be no repeated address.

7.2.2 RTU mode

7.2.2.1 RTU communication frame format

If the controller is set to communicate by RTU mode in Modbus network every 8bit byte in the message

includes two 4Bit hex characters. Compared with ACSII mode, this mode can send more data at the same

baud rate.

Code system

· 1 start bit

· 7 or 8 digital bit, the minimum valid bit can be sent firstly. Every 8 bit frame includes two hex characters

(0...9, A...F)

· 1 even/odd check bit . If there is no checkout, the even/odd check bit is inexistent.

· 1 end bit (with checkout), 2 Bit(no checkout)

Error detection field

· CRC

The data format is illustrated as below:

11-bit character frame (BIT1~BIT8 are the digital bits)

Start bit BIT1 BIT2 BIT3 BIT4 BIT5 BIT6 BIT7 BIT8

Check

bit

End bit

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10-bit character frame (BIT1~BIT7 are the digital bits)

Start bit BIT1 BIT2 BIT3 BIT4 BIT5 BIT6 BIT7

Check

bit

End bit

In one character frame, the digital bit takes effect. The start bit, check bit and end bit is used to send the

digital bit right to the other device. The digital bit, even/odd checkout and end bit should be set as the same

in real application.

The Modbus minimum idle time between frames should be no less than 3.5 bytes. The network device is

detecting, even during the interval time, the network bus. When the first field (the address field) is received,

the corresponding device decodes next transmitting character. When the interval time is at least 3.5 byte, the

message ends.

The whole message frame in RTU mode is a continuous transmitting flow. If there is an interval time (more

than 1.5 bytes) before the completion of the frame, the receiving device will renew the uncompleted

message and suppose the next byte as the address field of the new message. As such, if the new message

follows the previous one within the interval time of 3.5 bytes, the receiving device will deal with it as the same

with the previous message. If these two phenomena all happen during the transmission, the CRC will

generate a fault message to respond to the sending devices.

The standard structure of RTU frame:

START T1-T2-T3-T4(transmission time of 3.5 bytes)

ADDR Communication address: 0~247(decimal system)(0 is the broadcast address)

CMD

03H:read slave parameters

06H:write slave parameters

DATA (N-1)

…

DATA (0)

The data of 2*N bytes are the main content of the communication as well as

the core of data exchanging

CRC CHK low bit

Detection value:CRC (16BIT）

CRC CHK high bit

END T1-T2-T3-T4(transmission time of 3.5 bytes)

7.2.2.2 RTU communication frame error checkout

Various factors (such as electromagnetic interference) may cause error in the data transmission. For

example, if the sending message is a logic “1”,A-B potential difference on RS485 should be 6V, but in reality,

it may be -6V because of electromagnetic interference, and then the other devices take the sent message as
logic“0”. If there is no error checkout, the receiving devices will not find the message is wrong and they may

give incorrect response which cause serious result. So the checkout is essential to the message.

The theme of checkout is that: the sender calculate the sending data according to a fixed formula, and then

send the result with the message. When the receiver gets this message, they will calculate anther result

according to the same method and compare it with the sending one. If two results are the same, the

message is correct. If not, the message is incorrect.

The error checkout of the frame can be divided into two parts: the bit checkout of the byte and the whole data

checkout of the frame (CRC check).

Bit checkout of the byte

The user can select different bit checkouts or non-checkout, which impacts the check bit setting of each byte.