Introduction - Vacon NX ACTIVE FRONT END II Applications Manual

6 • Vacon arfiff05 Standard AFE-II
1.

INTRODUCTION

The AFE unit is a regenerative power converter for the front-end of a common DC bus product line.
The AFE unit is utilized by using inverter hardware with special software. An external L(CL)-filter
and charging circuit is needed. This unit is selected when low harmonics are required. The principle
connection of AFE drive has been described in .
Figure 1
The Regenerative Application is easy and flexible to use due to its versatile fieldbus features. The
parameters of the Regenerative Application are explained in Chapter 7 of this manual.
The basic I/O-configuration of the AFE drive consists of OPT-A1 and OPT-A2 option cards. The basic
I/O configuration has been described in table 2-1.
As a default the control place (P3.1) of the AFE drive is Keypad.
This application requires NXP3 control board VB00761.
Figure 1, AFE connection
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/