schmersal bp408, Installation Manual, Page: 64 / 122

64 Installation manual of system “bp408” - Electrical connection
7.3 Connections for cable shields
In order to achieve a good electromagnetic compatibility (EMC) of the lift system,
all shielded cables must be connected as shown in the figures below, unless they
have been assembled as EMC-compliant plug connections.
NOTE!
It is not enough just to twist the cable shielding und and to clamp this “shielding
braid” (see also “Pigtail”) to PE potential. With regard to good EMC, it is important
that the shields are always connected to the entire surface.
If the user is installing other shielded cables on his own initiative, it is of utmost
importance that these shields are also connected as specified in the figures!
Always follow the EMC instructions of the inverter manufacturers.
If you have any questions regarding the EMC Directive, our service team are happy
to help with advice and assistance.
7.4 Names in circuit diagrams
Böhnke + Partner GmbH defines the names of the individual components
according to function groups. We refrain from forcing the names into a rigid scheme.
By using the CAD system to create the circuit diagrams, we achieve greater
flexibility when labelling in the circuit diagrams and in the parts lists. Each
component is named directly in the circuit diagrams, based on the function and
project, and thus is customised.
Figure 40:
Connection example for
shielded cables
Figure 41:
The shields must always be connected to the entire surface of PE potential
by means of cable or pipe clamp.