Leuze electronic
CMS 700i
– Contour Measurement System
Page 32
6.7
EMC compliant installation
6.7.1 Control cabinet LSC-Box
NOTICE
Shielding instructions control cabinet!
The control cabinet LSC-Box must be earthed with a cable cross-
section of ≥ 6 mm²!
The functional earth must be guaranteed on all system components!
A grounding element is installed on the control cabinet for this purpose.
Figure 25: Grounding element on the bottom of the control cabinet LSC-Box
6.7.2 Shielding and line lengths
NOTICE
General shielding information!
Avoid interference emissions when using power components (e.g. frequency inverters)!
The necessary specifications under which the power component satisfies its CE Declaration of
Conformity can be found in the technical descriptions of the power components.
In practice, the following measures have proven effective:
Properly ground the total system.
Screw mains filter, frequency inverter, etc., flat to a galvanized mounting plate (thickness 3 mm) in
the switch cabinet.
Keep cable between mains filter and inverter as short as possible and twist cables.
Shield both ends of the motor cable.
Carefully ground all parts of the machine and of the switch cabinet using copper strips, ground
rails or grounding cables with large cross section.
Keep the length of the shield less end of the cable as short as possible.
Guide the shielding untwisted to a terminal (No „RF braid“).
NOTICE
Separate power and control cables!
Lay the cables for the power components (e.g. mains filter, frequency inverter, etc.) as far from
the CMS 700i cables as possible (distance > 30 cm).
Avoid laying power and CMS 700i cables parallel to one another.