FC 300 Design Guide
Introduction to FC 300
If the shield is to be placed on a mounting plate for the adjustable frequency drive, the
mounting plate must be made of metal, because the shield currents must be conveyed back
to the unit. Moreover, ensure good electrical contact from the mounting plate through the
mounting screws to the adjustable frequency drive chassis.
With resp ect to installation, it is generally less complicated to use n on-shielded cables than shielded ones.
NOTE
When non-shielded cables are used, some emission requiremen ts are not complied
with, although the immunity requirements are observed.
In order 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 a longside motor and brake
cables. Radio interference higher than 50 MHz ( airborne) is esp ecially generated by the control electronics.
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MG.33.B3.22 - VLT is a registered Danfoss trademark
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