Purpose Of The Manual; Additional Resources; Product Overview; Internal Components Functions - Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual

Introduction

1.1 Purpose of the Manual

This manual is intended to provide detailed information for
1 1
the installation and of the frequency converter. 2 Instal-
lation provides requirements for mechanical and electrical
installation, including input, motor, control and serial
communications wiring, and control terminal functions.
3 Start Up and Functional Testing provides detailed
procedures for start up, basic operational programming,
and functional testing. The remaining chapters provide
supplementary details. These include user interface,
detailed programming, application examples, start-up
troubleshooting, and specifications.

1.2 Additional Resources

Other resources are available to understand advanced
frequency converter functions and programming.
•
The VLT
detail on working with parameters and many
application examples.
•
The VLT
detailed capabilities and functionality to design
motor control systems.
•
Supplemental publications and manuals are
available from Danfoss.
See Danfoss website /BusinessAreas/DrivesSo-
lutions/Documentations/VLT+Technical
+Documentation.htm for listings.
•
Optional equipment is available that may change
some of the procedures described. Reference the
instructions supplied with those options for
specific requirements. Contact the local Danfoss
supplier or visit the Danfoss website /
BusinessAreas/DrivesSolutions/Documentations/VLT
+Technical+Documen-tation.htm, for downloads
or additional information.

1.3 Product Overview

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 changing
temperature or pressure for controlling fan, compressor, or
pump motors. The frequency converter can also regulate
the motor by responding to remote commands from
external controllers.
In addition, the frequency converter monitors the system
and motor status, issues warnings or alarms for fault
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
6
VLT
Operating Instructions
®
Programming Guide provides greater
®
Design Guide is intended to provide
MG20M902 - VLT
®
AQUA Drive
conditions, starts and stops the motor, optimizes energy
efficiency, and offers many more control, monitoring, and
efficiency functions. Operation and monitoring functions
are available as status indications to an outside control
system or serial communication network.
For single phase frequency converters (S2 and S4) installed
in the EU the following applies:
Single phase frequency converters (S2 and S4) with an
input current less than 16 A and an input of more than 1
kW are intended for use as professional equipment in
trades, professions, or industries. Designated application
areas are:
•
Public pools, public water supplies, agriculture,
commercial buildings and industries.
They are not intended for general public use or use in
residential areas. All other single phase frequency
converters are only intended for use in private low-voltage
systems interfacing with public supply only at a medium or
high voltage level. Operators of private systems must
ensure that the EMC environment complies with IEC
610000-3-6 and/or the contractual agreements.

1.4 Internal Components Functions

Illustration 1.3 is a block diagram of the frequency
converter's internal components. See Table 1.3 for their
functions.
Illustration 1.3 Frequency Converter Block Diagram
Area
1 Mains input
2 Rectifier
3 DC bus
®
is a registered Danfoss trademark
Title Functions
•
Three-phase AC mains power
supply to the frequency
converter
•
The rectifier bridge converts
the AC input to DC current to
supply inverter power
•
Intermediate DC-bus circuit
handles the DC current