Siemens micromaster 410, Operating Instructions Manual, Page: 70 / 84

9 Electro-Magnetic Compatibility Issue 04/02
MICROMASTER 410 Operating Instructions
70
6SE6400-5EA00-0BP0
9.1.3 EMC Directive Compliance with Harmonics Regulations
From 1st January 2001 all electrical apparatus covered by the EMC Directive will
have to comply with EN 61000-3-2 "Limits for harmonic current emissions
(equipment input
≤
16 A per phase)".
All Siemens variable speed drives of the MICROMASTER, MIDIMASTER,
MICROMASTER Eco and COMBIMASTER ranges, which are classified as
"Professional Equipment" within the terms of the standard, fulfill the requirements
of the standard.
Special considerations for 250 W to 550 W drives with 230 V 1ac mains supplies
when used in non-industrial applications
For units in this voltage and power range the following warning applies:
”This equipment requires supply authority acceptance for connection to the public
supply network
”. Please refer to EN 61000-3-12 sections 5.3 and 6.4 for further
information. Units connected to Industrial Networks
1
do not require connection
approval (see EN 61800-3, section 6.1.2.2).
The harmonic current emissions from these products are described in the table
below:
Rating Typical Harmonic
Current (A) Typical Harmonic
Current (%) Typical Voltage
Distortion
Distribution Transformer
Rating
10kVA 100kVA 1MVA
3
rd
5
th
7
th
9
th
11
th
3
rd
5
th
7
th
9
th
11
th
THD (%) THD (%) THD (%)
250W 230V 1ac 2.40 1.70 0.95 0.40 0.20 83 59 33 14 7 0.67 0.067 0.0067
370W 230V 1ac 3.50 2.50 1.40 0.60 0.25 85 61 34 15 6 0.97 0.097 0.0097
550W 230V 1ac 4.60 3.30 1.80 0.70 0.40 87 62 34 13 8 1.27 0.127 0.0127
The allowed harmonic currents for “professional equipment” with an input power
> 1 kW are not yet defined. Therefore, any electrical apparatus containing the
above drives which has an input power > 1 kW will not require connection
approval.
Alternatively, the necessity to apply for connection approval can be avoided by
fitting the input chokes recommended in the technical catalogues (except 550 W
230 V 1ac units).
1 Industrial Networks are defined as those which do not supply buildings used for domestic purposes.