Danfoss VLT series Quick Guide

Contents
1 Quick Guide
2
1.1 Safety
2
1.1.1 Warnings 2
1.1.2 Safety Instructions 2
1.2 Introduction
3
1.2.1 Available Literature 3
1.2.2 IT Mains 3
1.2.3 Avoid Unintended Start 3
1.2.4 Disposal Instruction 3
1.3 Installation
3
1.3.1 Before Starting Repair Work 3
1.3.2 Side-by-Side Installation 4
1.3.3 Mechanical Dimensions 5
1.3.4 Electrical Installation in General 6
1.3.5 Connecting to Mains and Motor 6
1.3.6 Fuses 8
1.3.7 EMC-Correct Electrical Installation 8
1.3.8 Location of Control Terminals 10
1.3.9 Electrical Overview 11
1.4 Programming
12
1.4.1 Programming with the Local Control Panel (LCP) 12
1.4.3 The Start-up Wizard for Open Loop Applications 13
1.5 Cascade Controller
21
1.5.1 System Status and Operation 22
1.5.2 Start/Stop Conditions 22
1.5.3 Cascade Control Wizard 23
1.5.4 Cascade Control Connection 24
1.6.1 Main Menu Structure 25
1.7 Warnings and Alarms
27
1.8.1 Mains Supply 3x380-480 V AC 29
1.8.2 EMC Test Results 31
1.9 Special Conditions
34
1.9.1 Derating for Ambient Temperature and Switching Frequency 34
1.9.2 Derating for Low Air Pressure 34
Contents
VLT
®
HVAC Basic Drive Cascade Controller Quick Guide
MG18F402 - VLT
®
is a registered Danfoss trademark 1

Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)