Nord Drivesystems SK 510P - EMC of Device; Table 22: EMC Comparison between en 61800-3 and en 55011

NORDAC PRO (SK 500P) – Users Manual for Frequency Inverters
202 BU 0600 en-2319
The same limits apply to both standards: However, the standards differ with regard to an application
that is extended in the product standard. The user decides which of the two standards applies,
whereby the environmental standard applies in the event of a typical fault remedy.
The main connection between the two standards is explained as follows:
Category as per EN 61800-3
C1
C2
C3
Limit class in accordance with EN 55011 B A1 A2
Operation permissible in
1. Environment (living environment)
X
X
1)
-
2. Environment (industrial environment) X X
1)
X
1)
Note required in accordance with EN-61800-
3
-
2)
3)
Sales channel
Generally available
Limited availability
EMC situation No requirements Installation and start-up by EMC expert
1)
Device used neither as a plug-in device nor in moving equipment
2)
"The drive system can cause high-frequency interference in a living environment that may make interference suppression measures
necessary".
3) "The drive system is not intended for use in a public low-voltage network that feeds residential areas".
Table 22: EMC comparison between EN 61800-3 and EN 55011
8.3.3 EMC of device
NOTICE!
EMC Interference to the environment
This device produces high frequency interference, which may make additional suppression measures
necessary in domestic environments ( Section 8.3.2 "EMC evaluation").
• Use of shielded motor cables is essential in order to comply with the specified radio interference
suppression level.
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
The motor cable shielding must be connected to both sides (frequency inverter shield angle and the
metal motor terminal box). Depending on the inverter version (...-A or ...-O) and according to the type
and use of mains filters or chokes, different permissible motor cable lengths result for compliance with
the declared limit value classes.
Information
For connection of shielded motor cables with a length > 30 m, in particular with low power frequency
inverters the current monitoring may trigger, so that use of an output choke (SK CO1…) is also
necessary.