Baldor MicroFlex, Installation Manual

Page: 113 / 124

www.baldormotion.com
CE & UL C-3 MN1919
C.1.4 Use of CE compliant components
The following points should be considered:
H
Using CE approved components will not guarantee a CE compliant system!
H
The components used in the drive, installation methods used, materials selected for
interconnection of components are important.
H
The installation methods, interconnection materials, shielding, filtering and
earthing/grounding of the system as a whole will determine CE compliance.
H
The responsibility of CE mark compliance rests entirely with the party who offers the end
system for sale (such as an OEM or system integrator).
C.1.5 EMC wiring technique
Cabinet
Using a typical electroplated zinc coated enclosure, connected to earth/ground, means that all
parts mounted on the back plane are connected to earth/ground and all outer shield (screen)
connections can be connected to earth/ground. Within the cabinet there should be a spatial
separation between power wiring (motor and AC power cables) and control wiring.
Shield (screen) connections
All connections between components must use shielded cables. The cable shields must be
connected to the enclosure. Use conductive clamps to ensure good earth/ground connection.
With this technique, a good earth/ground shield can be achieved.
EMC filters
The filter should be mounted next to the MicroFlex. The connections between the MicroFlex
and the filter should use shielded (screened) cables. The cable shields should be connected to
shield clamps at both ends. An exception to this is the analog command signal.
Earthing/grounding
For safety reasons (VDE0160), all Baldor components must be connected to earth/ground with
a separate wire. Earth/ground connections must be made from the central earth/ground (star
point) to the regeneration resistor enclosure and from the central earth/ground (star point) to
the power supply.