CAUTION
SHOCK HAZARD FROM MULTI-CONDUCTOR CABLES
With a multi-conductor cable, the conductors that are not connected can cause an accidental contact with a conducting
component.
-
If a multi-conductor cable is used, cut off all conductors that are not connected.
The enclosure sizes FR8 and larger have the DC connection as optional.
If it is necessary to connect an external brake resistor, see VACON
®
Brake Resistor Manual. See also
8.7.8.2 Setting the Internal Brake
6.2 EMC-compliant Installation
For cable selections in different EMC levels, see
For the EMC levels C1 and C2, it is necessary to have a 360º grounding of the shield on both ends of the motor cable.
Table 10: Recommendations for Cables
Cable
type
Category C1 and C2
(1)
Category C3
(2)
Category C4
(2)
No EMC protection
(2)
Motor ca-
ble
A symmetrical power cable with a compact low-im-
pedance shield.
A cable for the specified mains voltage.
We recommend an NKCABLES /MCCMK, SAB/
ÖZCUY-J or equivalent cable. See
A symmetrical power cable with a concentric protection wire.
A cable for the specified mains voltage.
We recommend an NKCABLES/MCMK cable. See
Mains ca-
ble
A power cable for a fixed installation.
A cable for the specified mains voltage.
A shielded cable is not necessary.
We recommend an NKCABLES/MCMK cable.
Control
cable
A shielded cable with a compact low-impedance shield, for example an NKCABLES/ JAMAK, or an SAB/ÖZCuY-O cable.
1
1
st
environment
2
2
nd
environment
For the definitions of EMC protection levels, see IEC/EN 61800-3 + A1.
Electrical Installation
Operating Guide | VACON® NXS/NXP Air-cooled
AQ275638903263en-000301 / DPD00910
44 | Danfoss A/S © 2020.02
