Power cabling
vacon • 25
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4
Use cables with heat resistance in accordance with the application requirements. The cables and
the fuses must be dimensioned according to the AC drive nominal OUTPUT current which you can
find on the rating plate.
1 = Power cable intended for fixed installation and the specific mains voltage. Shielded cable not
required. (MCMK or similar recommended).
2 = Symmetrical power cable equipped with concentric protection wire and intended for the spe-
cific mains voltage. (MCMK or similar recommended). See Figure 17.
3 = Symmetrical power cable equipped with compact low-impedance shield and intended for
the specific mains voltage. [MCCMK, EMCMK or similar recommended; Recommended
cable transfer impedance (1...30MHz) max. 100mohm/m]. See Figure 17.
*360º grounding of the shield with cable glands in motor end needed for EMC category C2.
4 = Screened cable equipped with compact low-impedance shield (JAMAK, SAB/ÖZCuY-O or
similar).
Figure 17.
NOTE
: The EMC requirements are fulfilled at factory defaults of switching frequencies (all enclo-
sures).
NOTE:
If safety switch is connected, the EMC protection must be continuous over the whole cable
installation.
Table 9: Cable types required to meet standards.
EMC levels
Cable type
1
st
environment
2
nd
environment
Category C1 and C2
Category C3
Category C4
Mains cable
1
1
1
Motor cable
3*
2
2
Control cable
4
4
4
Shield
PE conductors
Shield
PE conductor