Emc Instructions; Emc Conform Installation - KEB Combivert R6 Instruction Manual

EMC Instructions

2.4 EMC Instructions
COMBIVERT R6-S represent electrical equipment designed for use in industrial and commercial units. In accor-
dance with the EMC directive 2006/108/EC, it is not obligatory to mark these devices as they represent compo-
nents to be further processed by the respective machine and unit manufacturer and are not operable indepen-
dently according to the EMC directive. The person installing / operating the machine / unit is obliged to proove the
protective measures demanded by the EMC directive are complied with. The prescribed ratings can usually be
complied with when using the radio interference voltage filters specified by KEB, and when observing the following
measures and installation guidelines.
2.5

EMC conform installation

The COMBIVERT R6 is designed to be used in the second environment as defined in EN 61800-3 (unit with its
own supply transformer). Take additional measures when using it in the first environment (residential and com-
mercial area connected to public low-voltage mains)!
• Install the control cabinet or system in an appropriate and correctly way (see chapter „control cabinet instal-
lation")
• To avoid coupled-in noise, separate supply lines, motor lines, control and data lines (low-voltage level < 48V)
and leave a space of at least 15 cm between them when installing.
• In order to maintain low-resistance high frequency connections, earthing and shielding, as well as other metal-
lic connections (e.g. mounting plate, installed units) must be in metal-to-metal contact with the mounting plate,
over as large an area as possible. Make ground connections with a surface as large as possible (earthing
strips).
• Only use shielded cable with copper or tin-plated braid, since steel braid is not suitable for high frequency
ranges. The screen must always be installed on the compensating rail and fastened with clips or guided
through the wall of the housing. Do not elongate the screen end (pigtails) with individual conductors!
• If external interference suppression filters are used, then these must be installed as close as possible to
(<30cm from) the interference source and in metal-to-metal contact with the mouting plate, over as large an
area as possible.
• Always equip inductive control elements (contactors, relays etc.) with suppressors such as varistors, RC-
elements or damping diodes.
• All connections must be kept as short as possible and as close as possible to the earth, as free floating lines
work as active and passive aerials.
• Keep connection cables straight (do not bundle). Install a non-assigned wire at one sides to the protective
earth conductor.
• The flow and return circuit must be twisted when the lines are not shielded, in order to dampen common-mode
noise.
• The cable for phase synchronisation between mains choke and COMBIVERT R6-S may not exceed a line
length of 1 m.
• Further informations are found in the internet, see „www.keb.de".
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