Common-Mode Filters; Remote Mounting Kit For Lcp - Danfoss VLT Refrigeration Drive FC 103 Design Manual

System Integration
When option module A and/or option module B is/are
used, fit the brim (B) to the top cover (A).
NOTICE
Side-by-side installation is not possible when using the
IP21/IP4X/TYPE 1 Enclosure Kit

3.8.7 Common-mode Filters

High-frequency common-mode cores (HF-CM cores) reduce
electromagnetic interference and eliminate bearing
damage by electrical discharge. They are special nanocrys-
talline magnetic cores, which have superior filtering
performance compared to regular ferrite cores. The HF-CM
core acts like a common-mode inductor between phases
and ground.
Installed around the 3 motor phases (U, V, W), the
common mode filters reduce high-frequency common-
mode currents. As a result, high-frequency electromagnetic
interference from the motor cable is reduced.
The number of cores required depends on motor cable
length and frequency converter voltage. Each kit consists
of 2 cores. To determine the number of cores required,
refer to Table 3.19.
Enclosure size
Cable length 1)
[m] A and B
T2/T4
50 2
100 4
150 4
300 4
Table 3.19 Number of Cores
1) Where longer cables are required, stack more HF-CM cores.
Install the HF-CM cores by passing the 3 motor phase
cables (U, V, W) through each core, as shown in
Illustration 3.35.
MG16G202
Design Guide
C D
T7 T2/T4 T7 T7
4 2 2 4
4 2 4 4
6 4 4 4
6 4 4 6
Danfoss A/S © 08/2015 All rights reserved.
PE U V W
Illustration 3.35 HF-CM Core with Motor Phases

3.8.8 Remote Mounting Kit for LCP

The LCP can be moved to the front of an enclosure by
using the remote built-in kit. Tighten the fastening screws
with a torque of maximum 1 Nm.
The LCP enclosure is rated IP66.
Enclosure
Maximum cable length between LCP and unit
Communication standard
Table 3.20 Technical Data
Illustration 3.36 LCP Kit with Graphical LCP, Fasteners, 3 m
Cable, and Gasket
Ordering Number 130B1113
3 3
IP66 front
3 m
RS485
69