Emc Precautions - Danfoss MCA 122 Modbus TCP Operating Instructions Manual

How to Install

2.1.6 EMC Precautions

NOTICE
Relevant national and local regulations, for example
regarding protective earth connection, must be observed.
2 2
For interference-free operation of the Ethernet network,
take the following EMC precautions.
•
Keep the Ethernet communication cable away
from motor and brake resistor cables to avoid
Illustration 2.8 EMC-correct Installation
10
MCA 122 Modbus TCP
•
•
Additional EMC information is available in the frequency
converter Design Guide.
®
MG90P202 - VLT is a protected Danfoss trademark
coupling of high frequency noise from one cable
to another
Maintain the greatest possible distance (min. 200
mm (8 inches)) between cables. Especially, where
cables run in parallel over long distances.
If crossing is unavoidable, the Ethernet cable
must cross motor and brake resistor cables at an
angle of 90°