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Kruger Ecowatt K320 Series - User Manual

Kruger Ecowatt K320 Series
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Summary

Preface

1 Safety Precautions

1.1 What this chapter contains

Overview of the safety precautions chapter, emphasizing careful reading and adherence.

1.2 Safety Definition

Defines key safety terms like Danger, Warning, Note, and trained professionals.

1.3 Warning Symbols

Explains warning symbols used to caution about hazards and how to avoid them.

1.4 Safety Guidelines

Provides essential safety guidelines for operating and maintaining the VFD.

1.4.1 Delivery and Installation

Guidelines for safe delivery, handling, and installation of the VFD.

1.4.2 Commissioning and Running

Safety precautions for VFD commissioning, wiring, and operation.

1.4.3 Maintenance and Component Replacement

Safety measures for VFD maintenance, inspection, and component replacement.

1.4.4 What to do after Scrapping

Instructions for proper disposal and recycling of the VFD at the end of its lifecycle.

2 Quick Startup

2.1 What this chapter contains

Introduction to basic installation and commissioning rules for quick setup.

2.2 Unpacking Inspection

Steps for inspecting the product after receiving it to ensure it's undamaged and complete.

2.3 Checking Before Applying

Checks to perform before applying the VFD, including load, current, and grid voltage.

2.4 Environment

Checks related to the installation environment before actual installation and use.

2.5 Installation Confirmation

Confirmation checklist for VFD installation, including cables, clearance, and grounding.

2.6 Basic Commissioning

Steps for basic commissioning before the VFD's actual use.

3 Product Overview

3.1 What this chapter contains

Overview of operation principles, product features, layouts, and model designation rules.

3.2 Basic Principle

Explains the basic operating principle of the VFD and its main circuit diagram.

3.3 Product Specifications

Detailed specifications of the VFD, including power input, output, and technical performance.

3.4 Product Nameplate

Description of the information found on the VFD product nameplate.

3.5 Model Designation Code

Explanation of the VFD model designation code structure.

3.6 Product Ratings

Table listing product ratings for different VFD models.

3.7 Structure Diagram

Diagram illustrating the VFD structure with numbered components.

4 Installation Guidelines

4.1 What this chapter contains

Introduction to mechanical and electrical installation procedures for the VFD.

4.2 Mechanical Installation

Detailed guidance on the mechanical aspects of VFD installation.

4.2.1 Installation Environment

Requirements for the installation environment to ensure optimal VFD operation.

4.2.2 Installation Direction

Guidelines on the correct vertical installation of the VFD for optimal heat dissipation.

4.2.3 Installation Mode

Description of the three installation modes: wall-mounting, flange-mounting, and floor-mounting.

4.2.4 Single-unit installation

Diagram and notes for single-unit VFD installation, including clearance dimensions.

4.2.5 Multiple-unit installation

Diagram and notes for installing multiple VFDs in parallel, with clearance dimensions.

4.2.6 Vertical installation

Details on vertical installation, emphasizing the use of windshields for proper heat dissipation.

4.2.7 Tilted installation

Guidelines for tilted installation, ensuring separation of air inlet and outlet ducts.

4.3 Main Circuit Standard Wiring

Diagrams and procedures for wiring the main circuit of the VFD.

4.3.1 Main circuit wiring diagram

Wiring diagrams for main circuits of different VFD models.

4.3.2 Main circuit terminal diagram

Diagrams illustrating the main circuit terminal connections for various VFD models.

4.3.3 Wiring procedure of the main circuit terminals

Step-by-step procedure for wiring the main circuit terminals of the VFD.

4.4 Control circuit standard wiring

Diagrams and descriptions for standard control circuit wiring.

4.4.1 Basic control circuit wiring diagram

Schematic diagram of the basic control circuit wiring for the VFD.

4.4.2 Input;output signal connection diagram

Diagram for connecting input/output signals, including U-type short connector usage.

4.5 Wiring protection

Measures for protecting VFD and cables against short circuits and overload.

4.5.1 Protecting the VFD and input power cable in short circuit

Protection methods for VFD and input power cables against short circuits.

4.5.2 Protecting the motor and motor cable in short circuit

Protection methods for motor and motor cables against short circuits.

4.5.3 Protecting the motor from thermal overload

Measures to protect the motor from thermal overload.

4.5.4 Bypass connection

Information on bypass connection for system operation during VFD faults.

5 Basic Operation Guidelines

5.1 What this chapter contains

Overview of how to operate the VFD using the keypad.

5.2 Keypad Introduction

Introduction to the LCD keypad and its functions for VFD control.

5.3 Keypad Display

Explanation of VFD keypad display interfaces in stop and running states.

5.4 Operating the VFD by Keypad

Detailed guide on operating the VFD using the keypad interface.

5.4.1 Enter;Exit Menu

Diagrams illustrating how to enter and exit menus on the VFD keypad.

5.4.2 List Edit

How to add, shift, or delete monitoring items from parameter lists.

5.4.3 Add Parameters to the Parameter List Displayed in Stop;Running State

Procedure for adding parameters to the stop or running state display lists.

5.4.4 Add Parameter to Common Parameter Setup List

Method for adding parameters to the common parameter setup list.

5.4.5 Parameter Selection Edit Interface

Interface for selecting and editing parameter values, showing authority and default values.

5.4.6 Parameter Setup Edit Interface

Interface for editing parameter values, including bit-wise settings and saving.

5.4.7 State Monitoring Interface

Interface for real-time monitoring of detected parameter values.

5.4.8 Motor Parameter Autotuning

Procedure for performing motor parameter autotuning for optimal control.

5.4.9 Parameter Backup

How to back up and restore VFD parameters to different storage areas.

5.4.10 System Setup

Interface for system setup, including language, time, and backlight settings.

5.4.11 Power-on Guiding Settings

Guidance for initial VFD setup, including parameter setting and autotuning.

5.5 Basic Operations

Introduction to the VFD's internal function modules and basic operations.

5.5.1 What this section contains

Overview of the VFD's function modules.

5.5.2 Common Commissioning Procedure

Step-by-step procedure for common VFD commissioning, including motor setup.

5.5.3 Vector Control

Explanation of vector control technology for asynchronous and synchronous motors.

5.5.4 Space Voltage Vector Control Mode

Description of space voltage control and V/F curve modes for motor control.

5.5.5 Torque Control

Explanation of VFD's torque control capabilities and limitations.

5.5.6 Motor Parameters

Guidance on setting motor parameters and performing autotuning for accurate control.

5.5.7 Start;Stop Control

Description of VFD start/stop modes: start frequency, DC braking, speed tracking.

5.5.8 Frequency Setting

Methods for setting frequency using main and auxiliary reference channels.

5.5.9 Analog Input

Details on VFD analog input terminals (AI1, AI2) and HDI input terminals.

5.5.10 Analog Output

Description of VFD analog output terminals (AO1) and high-speed pulse output (HDO).

5.5.11 Digital Input

Information on VFD's programmable digital and HDI input terminals.

5.5.12 Digital Output

Details on VFD's relay output terminals (RO1, RO2) and open collector output (Y).

5.5.13 Simple PLC

Explanation of the VFD's simple PLC function for multi-step speed control.

5.5.14 Multi-step Speed Running

Configuration of 16-step speeds using multi-step speed terminals.

5.5.15 PID Control

Guidance on PID control for process control, including parameter setup.

5.5.16 Running at Wobbling Frequency

Description of the wobbling frequency function for specific industrial applications.

5.5.17 Local Encoder Input

Functionality of the VFD's local encoder input using HDI high-speed pulse port.

5.5.18 Commissioning Procedures for Closed-loop Control, Position Control and Spindle Positioning

Procedures for commissioning closed-loop vector, position, and spindle positioning control.

5.5.19 Fault Handling

Guidelines for identifying, diagnosing, and resolving VFD faults.

6 Function Parameter List

6.1 What this chapter contains

Overview of the chapter listing all function codes and their descriptions.

6.2 Function Parameter List

Comprehensive list of VFD function codes, parameters, defaults, and modify status.

7 Troubleshooting

7.1 What this chapter contains

Introduction to fault reset, fault history, and VFD fault analysis.

7.2 Indications of Alarms and Faults

How to interpret VFD fault indicators and displayed fault codes.

7.3 Fault Reset

Methods for resetting faults on the VFD using keypad or power.

7.4 Fault History

Information on how fault types and running data are recorded.

7.5 VFD Faults and Solutions

General steps to handle VFD faults and confirm corrective measures.

7.5.1 Details of Faults and Solutions

Detailed table listing fault codes, possible causes, and corresponding solutions.

7.5.2 Other States

Information on other operational states such as system power failure (PoFF).

7.6 Analysis on Common Faults

Analysis and troubleshooting for common VFD faults.

7.6.1 Motor Fails to Work

Troubleshooting flowchart for when the motor fails to work.

7.6.2 Motor Vibrates

Troubleshooting flowchart for motor vibration or unusual noise.

7.6.3 Overvoltage

Troubleshooting steps for overvoltage faults in the VFD.

7.6.4 Undervoltage

Troubleshooting steps for undervoltage faults in the VFD.

7.6.5 Unusual Heating of Motor

Troubleshooting steps for unusual motor heating.

7.6.6 VFD Overheating

Troubleshooting steps for VFD overheating issues.

7.6.7 Motor Stalls During ACC

Troubleshooting steps for motor stalls during acceleration.

7.6.8 Overcurrent

Troubleshooting steps for overcurrent faults in the VFD.

7.7 Countermeasures on Common Interference

Measures to address common interference issues affecting VFD operation.

7.7.1 Interference on Meter Switches and Sensors

Solutions for interference affecting sensors and meters connected to the VFD.

7.7.2 Interference on RS485 Communication

Measures to resolve interference issues with RS485 communication.

7.7.3 Stop Failure and Indicator Shimmering Due to Motor Cable Coupling

Troubleshooting stop failures and indicator issues caused by motor cable coupling.

7.7.4 Leakage Current and Interference on RCD

Solutions for RCD misoperation caused by VFD leakage current.

7.7.5 Live Device Chassis

Troubleshooting steps for sensible voltage on the VFD chassis.

8 Maintenance

8.1 What this chapter contains

Overview of carrying out preventive maintenance on the VFD.

8.2 Periodical Inspection

Routine maintenance checks for ambient environment, voltage, keypad, and main circuit.

8.3 Cooling Fan

Information on the cooling fan's service life and replacement procedure.

8.4 Capacitor

Information on capacitor reforming and replacement procedures.

8.4.1 Capacitor Reforming

Instructions for reforming DC bus capacitors after long periods of inactivity.

8.5 Power Cable

Guidelines for checking power cable connections and ensuring proper installation.

9 Communication

9.1 What this chapter contains

Overview of communication protocols supported by the VFD, including Modbus.

9.2 Modbus Protocol Introduction

Explanation of the Modbus protocol, its transmission modes, and network structure.

9.3 Application

Details on VFD application using Modbus RTU mode via RS485 interfaces.

9.3.1 RS485

Description of RS485 interface operation, wiring, and transmission distance.

9.3.1.1 When One VFD is Used

Modbus wiring diagram for a network with a single VFD and PC.

9.3.1.2 When Multiple VFDs are Used

Common connection methods (chrysanthemum, star) for networks with multiple VFDs.

9.3.2 RTU

Details on the RTU communication mode and its frame structure.

9.3.2.1 RTU Communication Frame Structure

Description of the RTU data frame structure, including start, data, and CRC domains.

9.3.2.2 RTU Communication Frame Error Check Modes

Explanation of error check methods like odd/even check and CRC for RTU frames.

9.4 RTU Command Code and Communication Data

Description of RTU command codes and communication data formats.

9.4.1 Command Code 03 H, Reading N Words (Continuously up to 16 Words)

Format for reading multiple contiguous data words from the VFD using 03H command.

9.4.2 Command Word 06 H, Writing a Word

Format for writing single data words to VFD parameters using 06H command.

9.4.3 Command Code 08 H, Diagnosis

Command code 08H for querying VFD circuit detection information.

9.4.4 Command Code 10 H, Continuous Writing

Format for writing multiple data words to VFD parameters using 10H command.

9.4.5 Data Address Definition

Rules for defining communication data addresses and function code address formats.

9.4.5.1 Function Code Address Format Rules

Explains the two-byte address format for function codes (group and parameter).

9.4.5.2 Description of Other Function Addresses

Describes addresses for VFD control commands and status monitoring.

9.4.6 Fieldbus Scale

Explanation of fieldbus scale for representing decimal values in hexadecimal form.

9.4.7 Error Message Response

Table describing error message codes and their definitions for communication errors.

9.4.8 Read;Write Operation Example

Examples of read (03H) and write (06H, 10H) commands for VFD communication.

9.4.8.1 Examples of Read Command 03 H

Examples of reading VFD status words and fault information.

9.4.8.2 Examples of Write Command 06 H

Examples of writing parameters like forward running and max output frequency.

9.4.8.3 Examples of Continuously Write Command 10 H

Example of continuously writing multiple parameters like ACC/DEC time.

9.4.8.4 Modbus Communication Commissioning Example

Step-by-step guide for Modbus communication commissioning using PC software.

9.5 Common Communication Faults

Common communication faults and their possible causes.

Appendix A Expansion Cards

A.1 Model Definition

Explanation of the model definition structure for expansion cards.

A.2 Dimensions and Installation

Information on expansion card dimensions and the general installation process.

A.3 Wiring

Diagrams and instructions for grounding and wiring expansion cards.

A.4 IO Expansion Card-EC-IO501-00

Detailed terminal function description and specifications for the IO expansion card.

A.5 Programmable Expansion Card-EC-PC502-00

Description of the programmable expansion card's terminals and features.

A.6 Communication Card Function Description

Function descriptions for various communication expansion cards.

A.6.1 Bluetooth Communication Card-EC-TX501 and WIFI Communication Card-EC-TX502

Functionality and indicators for Bluetooth/WIFI communication cards.

A.6.2 PROFIBUS-DP Communication Card-EC-TX503

Details on the PROFIBUS-DP communication card, including connector pinout.

A.6.3 Ethernet Communication Card-EC-TX504

Functionality and indicators for the Ethernet communication card.

A.6.5 PROFINET Communication Card-EC-TX509

Functionality and indicators for the PROFINET communication card.

A.7 PG Expansion Card Function Description

Function descriptions for various PG expansion cards.

A.7.1 Sin;Cos PG Card-EC-PG502

Details on the Sin/Cos PG card, including terminals and indicator functions.

A.7.2 UVW Incremental PG Card-EC-PG503-05

Description of the UVW incremental PG card's terminals and functions.

A.7.3 Resolver PG Card-EC-PG504-00

Details on the Resolver PG card, including terminals and indicator functions.

A.7.4 Multifunction Incremental PG Card-EC-PG505-12

Description of the multifunction incremental PG card's terminals and features.

A.7.5 24 V Multi-function Incremental PG Card-EC-PG505-24

Details on the 24V multi-function incremental PG card's terminals and indicators.

A.7.6 Simplified Incremental PG Card-EC-PG507-12

Description of the simplified incremental PG card's terminals and indicators.

Appendix B Technical Data

B.1 What this chapter contains

Overview of the chapter covering VFD technical data and certifications.

B.2 Derated Application

Information on VFD capacity, derating due to temperature, altitude, and carrier frequency.

B.2.1 Capacity

Guidelines for selecting VFD models based on motor capacity and rated current.

B.2.2 Derating

Factors requiring VFD derating: temperature, altitude, and carrier frequency.

B.2.2.1 Derating Due to Temperature

Derating coefficients based on ambient temperature exceeding 40°C.

B.2.2.2 Derating Due to Altitude

Derating guidelines for VFDs installed at altitudes exceeding 1000m.

B.2.2.3 Derating Due to Carrier Frequency

Derating guidelines when carrier frequency exceeds the factory setting.

B.3 Grid Specifications

Specifications related to grid voltage, short-circuit capacity, and frequency.

B.4 Motor Connection Data

Data related to motor connection, including type, voltage, protection, and frequency.

B.5 Application Standards

List of standards the VFD complies with, including safety and EMC standards.

B.6 EMC Regulations

Information on EMC requirements for VFDs and application environment categories.

B.6.1 VFD Category of C2

Stipulations for induction disturbance limits meeting Category C2 requirements.

B.6.2 VFD Category of C3

Stipulations for induction disturbance limits meeting Category C3 requirements.

Appendix C Dimension Drawings

C.1 What this chapter contains

Overview of the chapter describing VFD dimension drawings.

C.2 Keypad Structure

Diagram illustrating the structure of the VFD keypad and installation bracket.

C.2.1 Structure Diagram

Detailed diagram of the VFD keypad structure.

C.2.2 Keypad Installation Bracket

Information on installing external keypads using brackets or screws.

C.3 VFD Structure

Diagram showing the VFD structure with all components.

C.4 VFD Structure

Detailed structural information and dimensions for VFD mounting.

C.4.1 Wall-mounting dimensions

Dimensions for wall-mounting VFD models.

C.4.2 Flange installation dimensions

Dimensions for flange installation of VFD models.

C.4.3 Floor installation dimensions

Dimensions for floor installation of VFD models.

Appendix D Optional Peripheral Accessories

D.1 What this chapter contains

Overview of selecting optional accessories for the VFD.

D.2 Wiring of Peripheral Accessories

External wiring diagrams for common VFD accessories.

D.3 Power Supply

Guidelines for ensuring VFD voltage class consistency with the grid.

D.4 Cables

Recommendations for selecting and arranging power, control, and shielded cables.

D.4.1 Power Cables

Requirements for input power and motor cable sizing, temperature, and grounding.

D.4.2 Control Cables

Guidelines for selecting and arranging analog, digital, and relay control cables.

D.4.3 Recommended Cable Sizes

Table of recommended cable sizes and screw tightening torques for VFD models.

D.4.4 Cable Arrangement

Guidelines for arranging motor, power, and control cables to minimize interference.

D.4.5 Insulation Inspection

Procedures for checking motor and motor cable insulation resistance.

D.5 Breaker and Electromagnetic Contactor

Requirements for selecting and configuring circuit breakers and contactors.

D.6 Reactors

Selection guidelines for input, DC, and output reactors based on VFD models and conditions.

D.7 Filters

Information on input and output filters for reducing VFD interference.

D.7.1 Filter Model Description

Description of filter model identifiers, including series, type, voltage, and current.

D.7.2 Filter Model Selection

Table for selecting appropriate input and output filters for VFD models.

D.8 Braking System

Information on selecting and installing braking components like resistors and units.

D.8.1 Brake Component Selection

Guidelines for selecting brake components based on load characteristics and VFD models.

D.8.2 Braking Resistor Cable Selection

Recommendation to use shielded cables for braking resistor connections.

D.8.3 Braking Resistor Installation

Instructions for installing braking resistors, including cooling and material considerations.

Appendix E STO Function Description

E.1 STO Function Logic

Description of the STO function logic and its input states.

E.2 STO Channel Delay Description

Table describing trigger and indication delays for STO channels.

STO Function Installation Checklist

Checklist for ensuring proper installation and use of the STO function.

Appendix F Further Information

F.1 Product and Service Queries

Contact information for product queries and service support.

F.2 Feedback on Kruger VFD Manuals

Information on how to provide feedback or comments on VFD manuals.

F.3 Documents on the Internet

Guidance on finding VFD manuals and product documents online.

Kruger Ecowatt K320 Series Specifications

General IconGeneral
Number of speeds3
Number of Fan Speeds3
Filter TypeAluminum grease filter
MaterialStainless steel
InstallationWall-mounted
Grease filter typeAluminum
Airflow320 m³/h

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