Nord Drivesystems NORDAC LINK SK250E-FDS - EMC of Device

NORDAC LINK (SK 250E-FDS ... SK 280E-FDS) – Users Manual for Frequency Inverters as Field Distributors
186 BU 0250 en-3021
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8.3.3 EMC of device
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NOTICE
EMC interference to the environment
This device produces high-frequency interference, which may make additional suppression measures
necessary in domestic environments (see 8.3.2 "EMC evaluation").
The use of shielded motor cables is essential in order to maintain the specified radio interference
suppression level.
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The device is exclusively intended for commercial use. It is therefore not subject to the requirements
of the standard EN 61000-3-2 for radiation of harmonics.
The limit value classes are only achieved if
• the wiring is EMC-compliant
• the length of shielded motor cable does not exceed the permissible limits
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• The standard pulse frequency (P504) is used
The motor cable shield must be connected on both sides.
Device version
Max. motor cable length,
shielded
Conducted emissions
150 kHz - 30 MHz
Class C2 Class C1
Standard configuration for
operation on TN/TT networks
(active integrated mains filter)
10 m -
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The PE contacts of the connection cables (e.g
mains and motor cable) are connected together in
the device. For fault-
free operation we
reco
mmend a further connection between the PE
of the device and the PE of the plant construction.
Two screw terminals are available for this on the
heat sink.
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