PWHD
Partial weighted harmonic
distortion
Q
Reactive power
R
SCE
Short circuit ratio
RPM
Revolutions per minute
S
Apparent power
s
Second
TDD
Total demand distortion
THD
Total harmonic distortion
THDi
Total harmonic current distortion
THDv
Total harmonic voltage distortion
TPF
True power factor
U
M,N
Nominal motor voltage
V
Volt
Table 1.1 Abbreviations
1.4.2 Conventions
Numbered lists indicate procedures.
Bullet lists indicate other information and description of
illustrations.
Italicized text indicates:
•
Cross-reference.
•
Link.
•
Footnote.
•
Parameter name.
•
Parameter group name.
•
Parameter option.
All dimensions in drawings are in mm (in).
* Indicates a default setting of a parameter.
The following symbols are used in this guide:
WARNING
Indicates a potentially hazardous situation that could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that could
result in minor or moderate injury. It can also be used to
alert against unsafe practices.
NOTICE
Indicates important information, including situations that
can result in damage to equipment or property.
1.5 Document Version
This manual is regularly reviewed and updated. All
suggestions for improvement are welcome.
shows the document version.
Edition
Remarks
MG80C5xx
Editorial update
Table 1.2 Document Version
1.6 Approvals and Certifications
VLT
®
Advanced Harmonic Filters AHF 005/AHF 010 are
designed in compliance with the directives described in
this section.
More approvals and certifications are available. Contact a
local Danfoss partner.
1.6.1 CE Conformity and Labeling
What is CE Conformity and Labeling?
The purpose of CE labeling is to avoid technical trade
obstacles within EFTA and the EU. The EU has introduced
the CE label as a simple way of showing whether a
product complies with the relevant EU directives and
standards. The CE label says nothing about the specifi-
cations or quality of the product.
1.6.2 CE Mark
Illustration 1.1 CE
The CE mark (Communauté Européenne) indicates that the
product manufacturer conforms to all applicable EU
directives. The EU directives applicable to the design and
manufacture of frequency converters are listed in
Introduction
Design Guide
MG80C502
Danfoss A/S © 10/2016 All rights reserved.
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