System requirements with regard to EMC-stability
Instruction handbook Mains filters BFN
Document No.: 5.09010.03 Baumüller Nürnberg GmbH
50
of 70
7.5
m Use mains filters recommended by Baumüller
m Obser
ve the correct sequence of the components:
Mains - fuse - mains filters - power choke (d
ependent of power converter) - power con-
verter - motor
m If Bau
müller motor cables and - components are used only, the compliance with the
permitted limit value of the interference immunity and of the interfering radiation can be
assumed.
m T
he maximum length of the motor cable is limited. The length is dependent of the
cross-section of the cable (for example 100 m at 1.5 mm
2
, 30 m at 35 mm
2
). The max-
imum length should be reduced by the factor
1/n, if n-parallel-connected motor cables
are used.
m T
he screened motor cable between the power converter and the motor must be one
piece. The cable may not be interrupted by terminals, contactors, fuses etc.
m The smallest poss
ible effective height is reached, if the cable is installed bonded face-
to-face on the surface of grounded switching device panels
Figure 14: Cable installation - effective height
m The cables shall be installed as near as possible to the conductors of the grounded
system. Herewith effective loop area for the magnetic coupling is reduced.
Figure 15: Cable installation - loop area
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