Kruger Ecowatt K320 Series Bedienungsanleitung

Ecowatt®Drive K320 series Change history

No.

Change description

Version

Release date

First release

V1.0

June 2021

Ecowatt®Drive K320 series Preface

-i-

Preface

The Ecowatt Drive K320 series is a high performance variable-frequency drive (VFD) that

specific designed to be applied in Fan application which integrates the latest Safety and

Energy-saving functions for the demand control ventilation system. It can drive both

synchronous motors and asynchronous motors.

[Energy saving]

This VFD adopts dedicated PID control mode for Demand Control Ventilation system to

optimizes the voltage output of the VFD to the actual load of the FAN motor, thus minimizing

its power consumption.

[Easy control]

It supports multiple kinds of popular control signal (0-10V signal, 4-20mA) and Modbus

communication to realize complicated system solutions.

[High performance]

It armed with advanced vector control technology and the latest digital processor dedicated

for motor control, thus enhancing product reliability and adaptability to the environment.

[Reliable]

Ecowatt Drive K320 uses high power density design. Some power ranges carry built-in DC

reactor and Braking unit to save installation space. Through overall EMC design, it can satisfy

the low noise and low electromagnetic interference requirements to cope with challenging

grid, temperature, humidity and dust conditions, thus greatly improving product reliability.

This operation manual presents installation wiring, parameter setup, fault diagnosis and

troubleshooting, and precautions related to daily maintenance.

Read this manual carefully before installation to ensure the VFD is installed and operated in a

proper manner to give full play to its excellent performance and powerful functions.

If the product is ultimately used for military affairs or manufacture of weapon, it will be listed

on the export control formulated by Foreign Trade Law of the People's Republic of China.

Rigorous review and necessary export formalities are needed when exported. Our company

reserves the right to update the information of our products.

Ecowatt®Drive K320 series Contents

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Contents

Preface ........................................................................................................................................................... i

Contents.......................................................................................................................................................... ii

1 Safety precautions......................................................................................................................................1

1.1 What this chapter contains....................................................................................................................1

1.2 Safety definition........................................................................................................................................1

1.3 Warning symbols .....................................................................................................................................1

1.4 Safety guidelines...................................................................................................................................... 2

1.4.1 Delivery and installation............................................................................................................ 2

1.4.2 Commissioning and running................................................................................................... 3

1.4.3 Maintenance and component replacement........................................................................ 4

1.4.4 What to do after scrapping ....................................................................................................... 4

2 Quick startup...............................................................................................................................................5

2.1 What this chapter contains...................................................................................................................5

2.2 Unpacking inspection ............................................................................................................................5

2.3 Checking before applying......................................................................................................................5

2.4 Environment .............................................................................................................................................5

2.5 Installation confirmation ..................................................................................................................... 6

2.6 Basic commissioning............................................................................................................................. 7

3 Product overview .......................................................................................................................................8

3.1 What this chapter contains.................................................................................................................. 8

3.2 Basic principle.......................................................................................................................................... 8

3.3 Product specifications ........................................................................................................................... 9

3.4 Product nameplate.................................................................................................................................12

3.5 Model designation code .......................................................................................................................12

3.6 Product ratings........................................................................................................................................13

3.7 Structure diagram..................................................................................................................................14

4 Installation guidelines ............................................................................................................................15

4.1 What this chapter contains.................................................................................................................15

4.2 Mechanical installation.......................................................................................................................15

4.2.1 Installation environment.........................................................................................................15

4.2.2 Installation direction.................................................................................................................16

4.2.3 Installation mode .......................................................................................................................17

4.2.4 Single-unit installation ............................................................................................................18

4.2.5 Multiple-unit installation........................................................................................................18

4.2.6 Vertical installation...................................................................................................................19

4.2.7 Tilted installation...................................................................................................................... 20

4.3 Main circuit standard wiring.............................................................................................................21

4.3.1 Main circuit wiring diagram...................................................................................................21

Ecowatt®Drive K320 series Contents

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4.3.2 Main circuit terminal diagram ............................................................................................. 22

4.3.3 Wiring procedure of the main circuit terminals.............................................................24

4.4 Control circuit standard wiring........................................................................................................ 25

4.4.1 Basic control circuit wiring diagram .................................................................................. 25

4.4.2 Input/output signal connection diagram .......................................................................... 27

4.5 Wiring protection.................................................................................................................................. 28

4.5.1 Protecting the VFD and input power cable in short circuit.......................................... 28

4.5.2 Protecting the motor and motor cable in short circuit.................................................. 29

4.5.3 Protecting the motor from thermal overload ...................................................................29

4.5.4 Bypass connection.................................................................................................................... 29

5 Basic operation guidelines.................................................................................................................... 30

5.1 What this chapter contains................................................................................................................ 30

5.2 Keypad introduction............................................................................................................................. 30

5.3 Keypad display....................................................................................................................................... 34

5.3.1 Displaying stopped-state parameters..................................................................................34

5.3.2 Displaying running-state parameters................................................................................. 35

5.3.3 Displaying fault information ................................................................................................. 35

5.4 Operating the VFD by keypad............................................................................................................ 36

5.4.1 Enter/exit menu ......................................................................................................................... 36

5.4.2 List edit ..........................................................................................................................................41

5.4.3 Add parameters to the parameter list displayed in stop/running state .................. 42

5.4.4 Add parameter to common parameter setup list............................................................42

5.4.5 Parameter selection edit interface.......................................................................................43

5.4.6 Parameter setup edit interface..............................................................................................44

5.4.7 State monitoring interface .....................................................................................................44

5.4.8 Motor parameter autotuning .................................................................................................45

5.4.9 Parameter backup ..................................................................................................................... 45

5.4.10 System setup.............................................................................................................................46

5.4.11 Power-on guiding settings....................................................................................................46

5.5 Basic operations.....................................................................................................................................49

5.5.1 What this section contains.....................................................................................................49

5.5.2 Common commissioning procedure...................................................................................49

5.5.3 Vector control.............................................................................................................................. 53

5.5.4 Space voltage vector control mode......................................................................................60

5.5.5 Torque control.............................................................................................................................69

5.5.6 Motor parameters ...................................................................................................................... 73

5.5.7 Start/stop control....................................................................................................................... 78

5.5.8 Frequency setting...................................................................................................................... 83

5.5.9 Analog input................................................................................................................................ 88

5.5.10 Analog output............................................................................................................................ 90

Ecowatt®Drive K320 series Contents

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5.5.11 Digital input................................................................................................................................ 94

5.5.12 Digital output........................................................................................................................... 103

5.5.13 Simple PLC ............................................................................................................................... 108

5.5.14 Multi-step speed running.....................................................................................................110

5.5.15 PID control.................................................................................................................................112

5.5.16 Running at wobbling frequency ........................................................................................118

5.5.17 Local encoder input................................................................................................................119

5.5.18 Commissioning procedures for closed-loop control, position control and spindle

positioning........................................................................................................................................... 120

5.5.19 Fault handling......................................................................................................................... 127

6 Function parameter list ........................................................................................................................132

5.5 What this chapter contains.............................................................................................................. 132

5.6 Function parameter list..................................................................................................................... 132

7 Troubleshooting .................................................................................................................................... 249

7.1 What this chapter contains..............................................................................................................249

7.2 Indications of alarms and faults ....................................................................................................249

7.3 Fault reset..............................................................................................................................................249

7.4 Fault history..........................................................................................................................................249

7.5 VFD faults and solutions...................................................................................................................249

7.5.1 Details of faults and solutions..............................................................................................250

7.5.2 Other states................................................................................................................................257

7.6 Analysis on common faults.............................................................................................................258

7.6.1 Motor fails to work ..................................................................................................................258

7.6.2 Motor vibrates ..........................................................................................................................259

7.6.3 Overvoltage................................................................................................................................260

7.6.4 Undervoltage.............................................................................................................................260

7.6.5 Unusual heating of motor..................................................................................................... 261

7.6.6 VFD overheating ......................................................................................................................262

7.6.7 Motor stalls during ACC ........................................................................................................263

7.6.8 Overcurrent................................................................................................................................264

7.7 Countermeasures on common interference...............................................................................265

7.7.1 Interference on meter switches and sensors..................................................................265

7.7.2 Interference on RS485 communication ...........................................................................266

7.7.3 Stop failure and indicator shimmering due to motor cable coupling ....................267

7.7.4 Leakage current and interference on RCD ......................................................................268

7.7.5 Live device chassis .................................................................................................................269

8 Maintenance........................................................................................................................................... 270

8.1 What this chapter contains..............................................................................................................270

8.2 Periodical inspection .........................................................................................................................270

8.3 Cooling fan ............................................................................................................................................273

Ecowatt®Drive K320 series Contents

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8.4 Capacitor................................................................................................................................................274

8.4.1 Capacitor reforming ................................................................................................................274

8.4.2 Electrolytic capacitor replacement....................................................................................275

8.5 Power cable...........................................................................................................................................275

9 Communication ..................................................................................................................................... 276

9.1 What this chapter contains..............................................................................................................276

9.2 Modbus protocol introduction ........................................................................................................276

9.3 Application............................................................................................................................................276

9.3.1 RS485............................................................................................................................................276

9.3.2 RTU ..............................................................................................................................................279

9.4 RTU command code and communication data ........................................................................282

9.4.1 Command code 03H, reading N words (continuously up to 16 words)...................282

9.4.2 Command word 06H, writing a word ...............................................................................284

9.4.3 Command code 08H, diagnosis...........................................................................................285

9.4.4 Command code 10H, continuous writing ........................................................................286

9.4.5 Data address definition..........................................................................................................287

9.4.6 Fieldbus scale ........................................................................................................................... 291

9.4.7 Error message response........................................................................................................292

9.4.8 Read/Write operation example...........................................................................................294

9.5 Common communication faults ....................................................................................................299

Appendix A Expansion cards ................................................................................................................ 300

A.1 Model definition..................................................................................................................................300

A.2 Dimensions and installation ..........................................................................................................306

A.3 Wiring ....................................................................................................................................................309

A.4 IO expansion card——EC-IO501-00 ................................................................................................309

A.5 Programmable expansion card——EC-PC502-00.......................................................................311

A.6 Communication card function description ............................................................................... 314

A.6.1 Bluetooth communication card––EC-TX501 and WIFI communication

card——EC-TX502 .............................................................................................................................. 314

A.6.2 PROFIBUS-DP communication card——EC-TX503........................................................315

A.6.3 Ethernet communication card——EC-TX504................................................................. 317

A.6.4 CANopen communication card——EC-TX505 and CAN master/slave control

communication card EC-TX511..................................................................................................... 317

A.6.5 PROFINET communication card——EC-TX509............................................................. 319

A.7 PG expansion card function description .................................................................................... 321

A.7.1 Sin/Cos PG card——EC-PG502.............................................................................................. 321

A.7.2 UVW incremental PG card——EC-PG503-05...................................................................323

A.7.3 Resolver PG card——EC-PG504-00..................................................................................... 325

A.7.4 Multifunction incremental PG card——EC-PG505-12 ..................................................327

A.7.5 24V multi-function incremental PG card——EC-PG505-24 .......................................330

Ecowatt®Drive K320 series Contents

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A.7.6 Simplified incremental PG card——EC-PG507-12 .........................................................333

Appendix B Technical data.................................................................................................................... 334

B.1 What this chapter contains..............................................................................................................334

B.2 Derated application ............................................................................................................................334

B.2.1 Capacity ......................................................................................................................................334

B.2.2 Derating......................................................................................................................................334

B.3 Grid specifications..............................................................................................................................335

B.4 Motor connection data...................................................................................................................... 335

B.5 Application standards.......................................................................................................................336

B.5.1 CE marking................................................................................................................................336

B.5.2 EMC compliance declaration ..............................................................................................336

B.6 EMC regulations..................................................................................................................................336

B.6.1 VFD category of C2 ..................................................................................................................337

B.6.2 VFD category of C3..................................................................................................................337

Appendix C Dimension drawings......................................................................................................... 338

C.1 What this chapter contains..............................................................................................................338

C.2 Keypad structure.................................................................................................................................338

C.2.1 Structure diagram....................................................................................................................338

C.2.2 Keypad installation bracket ................................................................................................338

C.3 VFD structure .......................................................................................................................................339

C.4 VFD structure.......................................................................................................................................339

C.4.1 Wall-mounting dimensions.................................................................................................339

C.4.2 Flange installation dimensions ......................................................................................... 341

C.4.3 Floor installation dimensions.............................................................................................343

Appendix D Optional peripheral accessories..................................................................................... 344

D.1 What this chapter contains .............................................................................................................344

D.2 Wiring of peripheral accessories...................................................................................................344

D.3 Power supply........................................................................................................................................345

D.4 Cables......................................................................................................................................................346

D.4.1 Power cables .............................................................................................................................346

D.4.2 Control cables...........................................................................................................................347

D.4.3 Recommended cable sizes ...................................................................................................348

D.4.4 Cable arrangement.................................................................................................................349

D.4.5 Insulation inspection.............................................................................................................349

D.5 Breaker and electromagnetic contactor......................................................................................349

D.6 Reactors ..................................................................................................................................................351

D.7 Filters......................................................................................................................................................352

D.7.1 Filter model description ........................................................................................................353

D.7.2 Filter model selection............................................................................................................354

D.8 Braking system ...................................................................................................................................355

Ecowatt®Drive K320 series Contents

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D.8.1 Brake component selection.................................................................................................. 355

D.8.2 Braking resistor cable selection.........................................................................................357

D.8.3 Braking resistor installation ...............................................................................................357

Appendix E STO function description................................................................................................. 359

E.1 STO function logic...............................................................................................................................359

E.2 STO channel delay description ......................................................................................................360

STO function installation checklist.....................................................................................................360

Appendix F Further information ...........................................................................................................361

F.1 Product and service queries............................................................................................................. 361

F.2 Feedback on Kruger VFD manuals ............................................................................................... 361

F.3 Documents on the Internet.............................................................................................................. 361

Ecowatt®Drive K320 series Safety precautions

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1Safety precautions

1.1 What this chapter contains

Read this manual carefully and follow all safety precautions before moving, installing,

operating and servicing the VFD. If these safety precautions are ignored, physical injury or

death may occur, or damage may occur to the equipment.

If any physical injury or death or damage to the equipment occur due to neglect of the safety

precautions in the manual, our company will not be responsible for any damages and we are

not legally bound in any manner.

1.2 Safety definition

Danger: Severe personal injury or even death can result if related requirements are not

followed.

Warning: Personal injury or equipment damage can result if related requirements are not

followed.

Note: Actions taken to ensure proper running.

Trained and qualified professionals: People working on the VFD must have received

professional electrical and safety training and obtained the certificates, and must be familiar

with all steps and requirements of VFD installing, commissioning, running and maintaining

and capable to prevent any emergencies.

1.3 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

Serious physical injury or even death

may occur if related requirements are not

followed

Warning

Physical injury or damage to the

equipment may occur if related

requirements are not followed

Forbid

Electrostatic

discharge

The PCBA may be damaged if related

requirements are not followed

Hot

Hot sides

The VFD base may become hot. Do not

touch.

Electric

shock

As high voltage still presents in the bus

capacitor after power off, wait for at least

five minutes (or 15 min / 25 min,

depending on the warning symbols on

the machine) after power off to prevent

electric shock

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