1 Introduction
1.1 Purpose of the Manual
The purpose of this manual is to provide information for
the installation and operation of a VLT
®
AutomationDrive
FC 302 Low Harmonic Drive. The manual includes relevant
safety information for installation and operation.
Chapter 1 Introduction, chapter 2 Safety,
chapter 3 Mechanical Installation, and chapter 4 Electrical
Installation introduce the unit functions and cover proper
mechanical and electrical installation procedures. There are
chapters on start-up and commissioning, applications and
basic troubleshooting. Chapter 8 Specications provides a
quick reference for ratings and dimensions, as well as other
operating specications. This manual provides a basic
knowledge of the unit and explains set-up and basic
operation.
VLT
®
is a registered trademark.
1.2 Additional Resources
Other resources are available to understand advanced
functions and programming.
•
The VLT
®
AutomationDrive FC 302 Programming
Guide provides greater detail on working with
parameters and many application examples.
•
The VLT
®
AutomationDrive FC 302 Design Guide
provides detailed capabilities and functionality to
design motor control systems.
•
Supplemental publications and manuals are
available from Danfoss.
See vlt-drives.danfoss.com/Support/Technical-
Documentation/ for listings.
•
Optional equipment may change some of the
procedures described. Reference the instructions
supplied with those options for specic
requirements. Contact the local Danfoss supplier
or visit the Danfoss website: vlt-
drives.danfoss.com/Support/Technical-
Documentation/ for downloads or additional
information.
•
The VLT
®
Active Filter AAF 006 Operating
Instructions provide additional information about
the lter portion of the low harmonic drive.
1.3
Product Overview
1.3.1 Intended Use
A frequency converter is an electronic motor controller
that converts AC mains input into a variable AC waveform
output. The frequency and voltage of the output are
regulated to control the motor speed or torque. The
frequency converter can vary the speed of the motor in
response to system feedback, such as with position sensors
on a conveyor belt. The frequency converter can also
regulate the motor by responding to remote commands
from external controllers.
The frequency converter:
•
Monitors the system and motor status.
•
Issues warnings or alarms for fault conditions.
•
Starts and stops the motor.
•
Optimises energy eciency.
Operation and monitoring functions are available as status
indications to an outside control system or serial communi-
cation network.
A low harmonic drive (LHD) is a single unit that combines
the frequency converter with an advanced active lter
(AAF) for harmonic mitigation. The frequency converter
and lter are packaged together in an integrated system,
but each functions independently. In this manual, there are
separate specications for the frequency converter and the
lter. Since the frequency converter and lter are in the
same enclosure, the unit is transported, installed, and
operated as a single entity.
Introduction Operating Instructions
MG37A302 Danfoss A/S © Rev. 04/2015 All rights reserved. 5
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