Danfoss VLT AQUA FC 202 Design Guide

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The eciency classes IE0 to IE2 of the drive controller as specied in IEC 61800-9-2 (EN 50598-2) refer to the 90/100 operating point,
i.e. 90 % motor stator frequency and 100% torque current (see Illustration 15).
Relative torque
producing current
Relative
motor stator
frequency
100 %
50 %
25 %
0 %
0 % 50 % 90 %
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Illustration 15: Operating Point according to IEC 61800-9-2 (EN 50598)
Since in the future all component manufacturers will disclose their loss data according to this new standard, optimized applications
can be designed with a wide range of dierent components. The new Standard allows an accurate preliminary calculation of the
power losses, so that the ROI (Return of Investment) can be reliably determined. Up to now the overall eciency of speed-regulated
electric motors was estimated with the aid of approximate energy consumption calculations.
It is now possible to determine the total losses of a system for the 8 operating points dened in the standard, including the part load
operation, via a simple addition of power losses. Danfoss helps its customers to avoid having to rely on system solution providers, to
ensure that their systems will retain a competitive advantage also in the future.
EC 61800-9-2 (EN 50598-2) shifts the focus from the individual component to the eciency of the whole drive system. The new
eciency classes (International Eciency for Systems, IES)
allow a simple determination of the total losses for a whole drive system (PDS).
Danfoss oers the MyDrive
®
ecoSmart
™
tool, which is available online or as a Smartphone app to assist with the eciency calcula-
tion. Use MyDrive
®
ecoSmart
™
to:
Look up part load data as dened in IEC 61800-9-2, for VLT® and VACON® drives
Calculate eciency class and part load eciency for drives and power drive systems
Create a report documenting part load loss data and IE or IES eciency class.
For more information, refer to
http://ecosmart.danfoss.com.
Refer to Illustration 16 to see the components in the PDS which contribute to losses in the design. Mains cables and the load ma-
chine are not a part of the PDS, even though their losses can be signicant and could be a part of the evaluation of the overall
energy eciency of the installation.
Input power
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Output power
Input filters
Drive input
DC link
Drive output
Output filters
Motor
Losses
Losses
Losses
Losses
Losses
Losses
Illustration 16: Losses in a Power Drive System
4.5 Software Tools
Danfoss oers a suite of software tools which have been designed to provide easy operation and the highest level of customization
of AC drives.
The tools are available at suite.mydrive.danfoss.com.
AJ300847815559en-000101 / 130R033728 | Danfoss A/S © 2020.09
Product Family Overview
VLT® AQUA Drive FC 202
Design Guide

Danfoss VLT AQUA FC 202 Specifications

General

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