excess energy is at hand. The filter will automatically and
continuously assign energy between first and second
priorities to provide the highest possible mitigation of
both reactive and harmonic compensation. This ensures
that the true power factor is continuously optimized and
that the highest possible utilization of the supply
transformer current is secured. Filter LCP provides a user-
friendly programming structure and allows multiple
readouts on the LCP. Some readouts are calculated and
approximated values and, consequently, they cannot be
compared with readouts of a power quality analyzer due
to different sample rates and harmonic order content.
It is not possible to overload the active filter due to the
self protection circuitry that automatically reduces the
compensated current to a level where the filter is at a
stable temperature condition. If the mitigation demand is
higher than the filter rating, the filter will compensate to
the best of its ability and leave remaining harmonics or
reactive currents unaffected.
The active filter is standard equipped with an RFI filter
fulfilling the EMC industrial (second) environment standard
IEC55011 Class A2 equal category C3 of IEC61800-3.
3.1.2 Filter Configurator
It is possible to design an active filter according to the
application requirements by using the ordering number
system. For the VLT Active Filter AAF 00x Series, you can
order standard filters and filters with integral options by
sending a type code string describing the product to the
local Danfoss sales office, i.e.:
AAF 00XA190T4E21H2xGCXXXSXXXXAxBXCFXXXDx
The meaning of the characters in the string can be located
in the following pages containing the ordering numbers
and option settings. In the example above a standard 190A
Active Filter is chosen in an IP21 enclosure for a 380–480V
net. From the Internet based configurator, you can
configure the right filter for the right application and
generate the type code string. The configurator will
automatically generate an 8-digit sales number to be
delivered to your local sales office. Furthermore, you can
establish a project list with several products and send it to
a Danfoss sales representative. The configurator can be
found on the global Internet site: www.danfoss.com/drives.
Filters will automatically be delivered with a language
package relevant to the region from which it is ordered.
Four regional language packages cover the following
languages:
Language package 1
English, German, French, Danish, Dutch, Spanish, Swedish,
Italian and Finnish.
Language package 2
English, German, Chinese, Korean, Japanese, Thai,
Traditional Chinese and Bahasa Indonesian.
Language package 3
English, German, Slovenian, Bulgarian, Serbian, Romanian,
Hungarian, Czech and Russian.
Language package 4
English, German, Spanish, English US, Greek, Brazilian
Portuguese, Turkish and Polish.
To order filters with a different language package, please
contact your local sales office.
Introduction to VLT Active ...
VLT Active Filter AAF 00x
3-2
MG.90.V2.22 - VLT
®
is a registered Danfoss trademark
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