FC101 Design Guide

mounting plate through the mounting screws to the
frequency converter chassis.
When using unshielded cables, some emission
requirements are not complied with, although most
immunity requirements are observed.
To reduce the interference level from the entire system
(unit+installation), make motor and brake cables as short
as possible. Avoid placing cables with a sensitive signal
level alongside motor and brake cables. Radio interference
higher than 50 MHz (airborne) is especially generated by
the control electronics.
1
2
z
z
z
L1
L2
L3
PE
U
V
W
C
S
I
2
I
1
I
3
I
4
C
S
C
S
C
S
C
S
I
4
C
S
z
PE
3
4
5
6
175ZA062.12
1 Ground wire 2 Shield 3 AC mains supply
4 Frequency converter 5 Shielded motor cable 6 Motor
Figure 3.52 Generation of Leakage Currents
Product Overview
VLT
®
HVAC Basic Drive FC 101
38 Danfoss A/S © 04/2018 All rights reserved. MG18C822
33