Emc-Correct Electrical Installation - Danfoss VLT 2800 Quick Manual

Electrical Installation

4.12 EMC-Correct Electrical Installation

General points to observe to ensure EMC-correct electrical
installation.
•
Use only screened/armoured motor cables and
screened/armoured control cables.
•
Connect the screen to ground at both ends.
4 4
•
Avoid installation with twisted screen ends
(pigtails), since this ruins the screening effect at
high frequencies. Use cable clamps instead.
•
It is important to ensure good electrical contact
from the installation plate through the installation
Illustration 4.9 Example of an EMC-correct Electrical Installation
16
Quick Guide
Illustration 4.9 shows EMC-correct electrical installation, in
which the frequency converter has been fitted in an instal-
lation cabinet and connected to a PLC.
Danfoss A/S © Rev. 2014-03-18 All rights reserved.
screws to the metal cabinet of the frequency
converter.
•
Use starwashers and galvanically conductive
installation plates.
•
Do not use unscreened/unarmoured motor cables
in the installation cabinets.
MG28M202