Use Of Emc-Correct Cables - Danfoss VLT HVAC Drive FC 100 Series Design Manual

How to Install
Figure 5.36 EMC-compatible Electrical Installation of a Adjustable Frequency Drive in Cabinet.
Figure 5.37 Electrical Connection Diagram.
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VLT HVAC Drive Design Guide

5.7.2 Use of EMC-Correct Cables

Danfoss recommends braided shielded/armored cables to
optimize EMC immunity of the control cables and the EMC
emission from the motor cables.
The ability of a cable to reduce the in and outgoing
radiation of electric noise depends on the transfer
impedance (Z
to reduce the transfer of electric noise; however, a shield
with a lower transfer impedance (Z
effective than a shield with a higher transfer impedance
(Z
T
Transfer impedance (Z
turers, but it is often possible to estimate transfer
impedance (Z
cable.
MG11BB22 - VLT ® is a registered Danfoss trademark
). The shield of a cable is normally designed
T
).
) is rarely stated by cable manufac-
T
) by assessing the physical design of the
T
) value is more
T
5-35
5 5