Power cabling
vacon • 29
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4
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 18.
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. 100 mOhm/m]. See Figure 18.
*360º grounding of the shield with cable glands in motor end needed for EMC level C2.
4 = Screened cable equipped with compact low-impedance shield (JAMAK, SAB/ÖZCuY-O or
similar).
Figure 18.
NOTE
: The EMC requirements are fulfilled at factory defaults of switching frequencies (all frames).
NOTE:
If safety switch is connected, the EMC protection must be continuous over the whole cable
installation.
Table 12. Cable types required to meet standards.
EMC levels
Cable type
1
st
environment
2
nd
environment
Category 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
