Danfoss VLT 6000 series User Manual

VLT
®
6000 HVAC Series
■ Contents
Introduction to HVAC
...................................................................................... 4
Software version ....................................................................................................... 4
Safety regulations ..................................................................................................... 5
Warning against unintended start ............................................................................. 5
Introduction to Operating Instructions ....................................................................... 7
Available literature ..................................................................................................... 8
VLT 6000 Advantages in a HVAC installation ............................................................ 8
Control principle ....................................................................................................... 9
AEO - Automatic Energy Optimization .................................................................... 10
Example of application - Speed control of fan in ventilation system ......................... 11
Example of application - Constant pressure regulation in water supply system ....... 12
Fire mode ............................................................................................................... 13
CE labelling ............................................................................................................ 15
PC software and serial communication ................................................................... 15
Unpacking and ordering a VLT frequency converter ................................................ 16
Type code ordering number string ......................................................................... 16
Ordering form ......................................................................................................... 20
Installation ......................................................................................................... 21
Mains supply (L1, L2, L3) ....................................................................................... 21
Max. imbalance of supply voltage .......................................................................... 21
Technical data, mains supply 3 x 200-240V ............................................................ 26
Technical data, mains supply 3 x 380-460V ............................................................ 28
Technical data, mains supply 3 x 525-600 V ........................................................... 33
Fuses ..................................................................................................................... 38
Mechanical dimensions .......................................................................................... 41
Mechanical installation ............................................................................................ 45
General information about electrical installation ...................................................... 48
High voltage warning .............................................................................................. 48
Earthing .................................................................................................................. 48
Cables .................................................................................................................... 48
Screened/armoured cables .................................................................................... 48
Extra protection with regard to indirect contact ....................................................... 48
RFI switch .............................................................................................................. 50
High voltage test .................................................................................................... 53
Heat emission from VLT 6000 HVAC ...................................................................... 53
Ventilation of integrated VLT 6000 HVAC ................................................................ 53
EMC correct electrical installation ........................................................................... 53
Use of EMC-correct cables .................................................................................... 55
Electrical installation - earthing of control cables ..................................................... 56
Electrical installation, enclosures ............................................................................. 57
Tightening-up torque and screw sizes .................................................................... 64
Mains connection ................................................................................................... 64
Motor connection ................................................................................................... 64
Direction of motor rotation ...................................................................................... 65
Motor cables .......................................................................................................... 65
Motor thermal protection ........................................................................................ 66
Earth connection .................................................................................................... 66
Installation of 24 Volt external DC supply ................................................................ 66
DC bus connection ................................................................................................ 66
High-voltage relay ................................................................................................... 66
MG.61.A5.02 - VLT is a registered Danfoss trademark
1

Danfoss VLT 6000 series Specifications

General

Brand	Danfoss
Model	VLT 6000 series
Category	Media Converter
Language	English

Summary

Introduction to HVAC

Safety Regulations

Essential safety rules for installation and operation of the VLT 6000 HVAC.

Available Literature

List of documentation available for VLT 6000 HVAC units.

VLT 6000 Advantages

Key benefits and features of the VLT 6000 HVAC series for installations.

Control Principle

Explanation of how the frequency converter controls motor speed via voltage and frequency.

AEO - Automatic Energy Optimization

Function for optimizing energy usage and motor efficiency.

Example of Application

Practical example of VLT 6000 HVAC in fan speed control for ventilation.

Fire Mode

Function to ensure uninterrupted operation during emergencies.

Installation

Mains Supply

Requirements for connecting VLT 6000 HVAC to the mains supply (L1, L2, L3).

Technical Data

Specifications for mains supply 3 x 200-240V units.

Fuses

Recommended fuses for UL/cUL compliance and general use.

Mechanical Installation

Guidelines for vertical installation and required cooling space.

General Information about Electrical Installation

Important considerations for safe electrical setup and EMC.

EMC Correct Electrical Installation

Best practices for ensuring electromagnetic compatibility in installations.

Use of EMC-Correct Cables

Recommendations for selecting and using cables for optimal EMC performance.

Mains Connection

Terminal details for connecting the mains supply to the unit.

Motor Connection

Terminal details for connecting the motor to the unit.

Programming

Control Unit LCP

Overview of the Local Control Panel interface and its functions.

Display Mode

Understanding different display modes for operating status and parameters.

Changing Data

Procedures for entering and modifying parameter values on the LCP.

Quick Menu

Accessing 12 essential setup parameters for quick configuration.

Load and Motor Configuration

Setting up motor parameters like power, voltage, frequency, and current.

Automatic Motor Adaptation (AMA)

Algorithm for measuring motor parameters and optimizing frequency converter settings.

PID for Process Control

Using the PID controller for regulating process conditions like pressure or flow.

Feedback Handling

How feedback signals (voltage, current, pulse) are processed for control.

All about VLT 6000 HVAC

Status Messages

Interpreting status indicators shown on the control panel display.

List of Warnings and Alarms

Comprehensive list of warnings, alarms, and trip conditions with descriptions.

Extreme Running Conditions

Unit behavior during short circuits, earth faults, and voltage fluctuations.

Derating for Ambient Temperature

Adjusting output current based on high ambient temperatures to prevent overheating.

Derating for Long Motor Cables or Cables with Larger Cross-section

Reducing output current due to extended cable lengths or larger cable cross-sections.

Derating for High Switching Frequency

Impact of switching frequency on output current and electronics for noise reduction.

Mains Supply Interference/Harmonics

Understanding mains current harmonics and their impact on the installation.

EMC Test Results (Emission, Immunity)

Test results demonstrating EMC compliance for emission and immunity.

Definitions

Glossary of technical terms and acronyms used in the manual.