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4.2.2 CE-typical drive system
Components of a CE-typical drive system
System component Specification
Controller Controller of the types 48x
RFI filter Data and allocation see chapter 3 "Accessories"
Mains choke Data and allocation see chapter 3 "Accessories"
Armature and field cable Screened power cable with tinned E-CU braid with
85 % optical coverage.
Tested maximum length: 50 m
Mains cable between
RFI filter and mains
choke and between
mains choke and
controller
As from cable length of 200 mm:
screened power cable with tinned E-CU braid with
85 % optical coverage..
Control cables Screened signal cable type LIYCY
Motor DC motor with separate excitation
Lenze series GFQ, GFR or similar
Note:
Controller, RFI filter, and mains choke are located on one mounting
plate.
Installation of the CE typical drive system
The electromagnetic compatibility of a drive system depends on the
type and accuracy of the installation.
Take special care with
− filters
− screening
− grounding
Filters
• Only use the RFI filters and mains chokes allocated to the
controllers
− RFI filters reduce non-permissible high-frequency
interferences to a permissible value.
− Mains chokes reduce low-frequency interference which
depends primarily on the motor cables and their length.
For motor cables which are longer than 50 m additional
measures are required.
Screening
• Screen all cables from and to the controller.
• Make sure that motor cables are separated from signal and
mains cables when laying the cables.
• Avoid a common terminal board for mains input and motor
output.
• The cables must be laid as close as possible to the reference
potential. Dangling cables are like antennas.
Grounding
• Ground all conductive metal components (controllers, RFI
filters, mains chokes) by suitable cables from a central
grounding point (PE bar).
• Observe the minimum cross-sections prescribed in the safety
information. However, for EMC the surface of the contact is
important and not the cross-section.
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