Install the HF-CM cores by passing the three motor phase
cables (U, V, W) through each core, as shown in Figure 3.30.
Figure 3.30 HF-CM Core with Motor Phases
3.7.8
Harmonic Filters
The Danfoss AHF 005 and AHF 010 are advanced harmonic
lters, not to be compared with traditional harmonic trap
lters. The Danfoss harmonic lters have been specially
designed to match the Danfoss adjustable frequency
drives.
By connecting the Danfoss harmonic
lters AHF 005 or
AHF 010 in front of a Danfoss adjustable frequency drive,
the total harmonic current distortion generated back to
line power is reduced to 5% and 10%.
3.7.9
IP21/NEMA Type 1 Enclosure Kit
IP20/IP4X top/NEMA TYPE 1 is an optional enclosure
element available for IP20 compact units.
If the enclosure kit is used, an IP20 unit is upgraded to
comply with enclosure IP21/4X top/TYPE 1.
The IP4X top can be applied to all standard IP20 FC 202
variants.
Figure 3.31 Enclosure Size A2
System Integration Design Guide
MG20N622 Danfoss A/S © 09/2014 All rights reserved. 75
3 3