Star/Delta Starter Or Soft Starter Not Required; Power Drive Systems; Ecodesign For Power Drive Systems - Danfoss VLT AQUA FC 202 Design Manual

VLT® AQUA Drive FC 202
Design Guide

4.3.5 Star/Delta Starter or Soft Starter not Required

When larger motors are started, it is necessary in many countries to use equipment that limits the start-up current. In more tradi-
tional systems, a star/delta starter or soft starter is widely used. Such motor starters are not required if a drive is used.
As shown in the following illustration, a drive does not consume more than rated current.
800
700
600
500
400
300
200
100
0
0 12,5
Illustration 13: Start-up Current
1 VLT AQUA DriveFC 202
2 Star/delta starter

4.4 Power Drive Systems

4.4.1 Ecodesign for Power Drive Systems

The Ecodesign Directive is the legislative framework that sets requirements on all energy-related products in the domestic, commer-
cial, and industrial sectors throughout Europe.
The Ecodesign requirements are only mandatory within the European Union. These requirements are like the legislative require-
ments for energy-related products which apply in North America and Australia.
Terms like Complete Drive Module (CDM) and Power Drive Systems (PDS) are used to define the elements in the design. The objec-
tive is to make more efficient and fewer energy consuming designs.
The CDM contains the drive controller as well as auxiliary devices and input components.
Motor control equipment = CDM or starter
Mains &
cabling
Illustration 14: Drive System Design
Danfoss A/S © 2020.09
4
3
2
1
25 37,5 50H z
F ull load
& speed
Motor Starter
(Contactor, Softstarter,...)
Vollständiges Antriebsgerät (CDM)
Complete Drive Module (CDM)
Feeding Auxiliaries Basic
section Drive
Module
(BDM)
Power Drive System (PDS)
Motor System
Extended Product
3 Soft starter
4 Start directly on mains
Driven Equipment
Transmis-
sion
AJ300847815559en-000101 / 130R0337 | 27
Product Family Overview
Load-
Machine