3.2.1. EMC Precautions
The following EMC precautions are recommended in order to achieve interference-free operation of the Interbus network. Additional EMC information is
available in the FC 300 series Operating Instructions (MG33AXYY) and Design Guide (MG33BXYY).
NB!
Relevant national and local regulations, for example regarding protective earth connection, must be observed.
The Interbus communication cable must be kept away from motor and brake resistor cables to avoid coupling of high frequency noise from one cable to
the other. Normally a distance of 200 mm (8 inches) is sufficient, but maintaining the greatest possible distance between the cables is recommended,
especially where cables run in parallel over long distances. If the Interbus cable has to cross a motor and brake resistor cable they must cross each other
at an angle of 90 degrees.
3.3.1. Installation of Option
The Interbus option is installed in its own cabinet, designed for DIN-rail mounting.
The option is connected to the FC 302 via terminal X22 on the option to terminal 68 and 69 on the frequency converter. Screened cable is recommended
(120 cm cable supplied with frequency converter).
3. How to Install
FC 300 Interbus Operating Instructions
8
MG.33.H3.02 - VLT is a registered Danfoss trademark
3