Danfoss VLT HVAC FC 100, Руководство по эксплуатации

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1.2 Purpose of the Manual
This manual is intended to provide detailed information for
the installation and start up of the frequency converter.
2 Installation provides requirements for mechanical and
electrical installation, including input, motor, control and
serial communications wiring, and control terminal
functions.
3 Start Up and Commissioning 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.
1.3 Additional Resources
Other resources are available to understand advanced
frequency converter functions and programming.
•
The VLT
®
Programming Guide, MG33MXYY
provides greater detail on working with
parameters and many application examples.
•
The VLT
®
Design Guide, MG33BXYY is intended to
provide detailed capabilities and functionality to
design motor control systems.
•
Supplemental publications and manuals are
available from Danfoss.
See http://www.danfoss.com/Products/Literature/
TeDocumentation.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 go to
http://www.danfoss.com/
Products/Literature/TeDocumentation.htm
for downloads or additional information.
1.4 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 position sensors on a
conveyor belt. 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
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.
1.5 Internal Frequency Converter Controller
Functions
Illustration 1.3 is a block diagram of the frequency
converter's internal components. See Table 1.2 for their
functions.
Illustration 1.3 Frequency Converter Block Diagram
Area Title Functions
1 Mains input
•
Three-phase AC mains power
supply to the frequency
converter
2 Rectifier
•
The rectifier bridge converts
the AC input to DC current to
supply inverter power
3 DC bus
•
Intermediate DC-bus circuit
handles the DC current
4 DC reactors
•
Filter the intermediate DC
circuit voltage
•
Prove line transient protection
•
Reduce RMS current
•
Raise the power factor
reflected back to the line
•
Reduce harmonics on the AC
input
5 Capacitor bank
•
Stores the DC power
•
Provides ride-through
protection for short power
losses
6 Inverter
•
Converts the DC into a
controlled PWM AC waveform
for a controlled variable
output to the motor
7 Output to motor
•
Regulated three-phase output
power to the motor
Introduction
VLT
®
HVAC Drive D-Frame
Operating Instructions
MG16D102 - VLT
®
is a registered Danfoss trademark 5
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