Vacon NXP series, System Hardware Manual

Page: 20 / 83

vacon • 20 Available sections
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
3.4 Active front-end section
The active front-end section (AFS) includes an LCL-filter and an NXA unit from the VACON
®
NXP
product series. The active front-end provides low THD(I) and several units can be connected in
parallel providing full or reduced redundancy.
* _M selection for mirrored design.
** +AC, AC busbars for two or more AFS sections after the MIS section, limited to 2600 A per side of
the MIS.
*** Dimensions including LCL.
As standard the AFS sections include the following (see Figure 5):
1. LCL Filter
2. The NXA unit
3. Control unit
4. Pre-charging components (installed in MIS section)
5. Terminals for control and indication signals (installed in MIS or ADS section)
6. DC fuses for the Supply Unit
7. AC fuses for the filter (installed in MIS section)
As pre-engineered standard options we can provide the following:
• UL approved design and components (+NAR)
• Arc detection (+ADU)
• Cabinet heater (+ACH)
• Cabinet light (+ACL)
Table 9. Available AFS sections
AFS type Drive size Width x Height x Depth (mm)
AFS_9*
/
**
FI9 800 x 2100 x 605***
AFS_10*
/
**
FI10 800 x 2100 x 605***
AFS_13*
/
**
FI13 1400 x 2100 x 605***
AFS_13_2x*
/
**
FI13 3200 x 2100 x 605***