Energy Efficiency - Danfoss VLT Refrigeration Drive FC 103 Design Manual

System Integration

3.3 Energy Efficiency

The standard EN 50598 Ecodesign for power drive systems, motor starters, power electronics and their driven applications
provides guidelines for assessing the energy efficiency of frequency converters.
The standard provides a neutral method for determining efficiency classes and power losses at full load and at part load.
The standard allows combination of any motor with any frequency converter.
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1 Mains and mains cabling
2 Feeding section
3 Auxiliaries
4 Basic drive module (BDM)
5 Auxiliaries
6 Motor
7 Transmission
8 Load machine
Illustration 3.10 Power Drive System (PDS) and Complete Drive Module (CDM)
MG16G202
Design Guide
MS
PDS
CDM
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3 4
S
MCS
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EP
6
5
EP Extended product
MS Motor system
PDS Power drive system
CDM Complete drive module
DE Driven equipment
MCS Motor control system (CDM or starter)
S Motor starter
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DE
8
7
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3 3