Danfoss VLT AQUA Drive FC 202 Design Guide

3 System Integration
This chapter describes the considerations necessary to
integrate the adjustable frequency drive into a system
design. The chapter is divided into these sections:
•
Chapter 3.1 Ambient Operating Conditions
Ambient operating conditions for the adjustable
frequency drive including environment,
enclosures, temperature, derating, and other
considerations.
•
Chapter 3.3 Line Power Integration
Input into the adjustable frequency drive from
the line power side including power, harmonics,
monitoring, cabling, fusing, and other consider-
ations.
•
Chapter 3.2 EMC, Harmonics and Ground Leakage
Protection
Input (regeneration) from the adjustable
frequency drive to the power grid including
power, harmonics, monitoring, and other consid-
erations.
•
Chapter 3.4 Motor Integration
Output from the adjustable frequency drive to
the motor including motor types, load,
monitoring, cabling, and other considerations.
•
Chapter 3.5 Additional Inputs and Outputs,
Chapter 3.6 Mechanical Planning
Integration of the adjustable frequency drive
input and output for optimal system design
including adjustable frequency drive/motor
matching, system characteristics, and other
considerations.
A comprehensive system design anticipates potential
problem areas while implementing the most
eective
combination of drive features. The information that follows
provides guidelines for planning and specifying a motor-
control system incorporating adjustable frequency drives.
Operational features provide a range of design concepts,
from simple motor speed control to a fully integrated
automation system with feedback handling, operational
status reporting, automated fault responses, remote
programming, and more.
A complete design concept includes detailed specication
of needs and use.
•
Adjustable frequency drive types
•
Motors
•
Line power requirements
•
Control structure and programming
•
Serial communication
•
Equipment size, shape, weight
•
Power and control cabling requirements; type and
length
•
Fuses
•
Auxiliary equipment
•
Transportation and storage
See chapter 3.9 System Design Checklist for a practical guide
for selection and design.
Understanding features and strategy options can optimize
a system design and possibly avoid introducing redundant
components or functionality.
3.1 Ambient Operating Conditions
3.1.1 Humidity
Although the adjustable frequency drive can operate
properly at high humidity (up to 95% relative humidity),
avoid condensation. There is a specic risk of condensation
when the adjustable frequency drive is colder than moist
ambient air. Moisture in the air can also condense on the
electronic components and cause short circuits. Conden-
sation occurs in units without power. It is advisable to
install a cabinet heater when condensation is possible due
to ambient conditions. Avoid installation in areas subject to
frost.
Alternatively, operating the adjustable frequency drive in
stand-by mode (with the unit connected to line power)
reduces the risk of condensation. Ensure the power
dissipation is sucient to keep the adjustable frequency
drive circuitry free of moisture.
3.1.2
Temperature
Minimum and maximum ambient temperature limits are
specied for all adjustable frequency drives. Avoiding
extreme ambient temperatures prolongs the life of the
equipment and maximizes overall system reliability. Follow
the recommendations listed for maximum performance
and equipment longevity.
System Integration
VLT
®
AQUA Drive FC 202
38 Danfoss A/S © 09/2014 All rights reserved. MG20N622
33

Danfoss VLT AQUA Drive FC 202 Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive FC 202
Category	DC Drives
Language	English