4 emc limit value classes, 5 operation with fi circuit breakers – NORD Drivesystems BU0135 User Manual

Page 83

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7 Technical data

BU 0135 GB-2713

Pre-series version

83

7.4 EMC limit value classes

It should be noted that these limiting value classes can only be achieved if the length of the motor cable
does not exceed the permissible limits.

Device type

Conducted emissions 150kHz - 30 MHz

Class A

Class B

Motor-mounted SK 1x5E

+

+

Wall-mounted SK 1x5E

100m

10m

Overview of the standards, which according to product standard EN 60947-4-2 are applicable

as testing and measuring methods for semiconductor motor starters:

Emission of interference

Emission from cables
(interference voltage)

EN 55011

B

-

Radiated emissions
(interference field strength)

EN 55011

B

-

Interference immunity EN 61000-6-1, EN 61000-6-2

ESD, discharge of static electricity

EN 61000-4-2

6kV (CD), 8kV (AD)

EMF, high frequency electro-magnetic
fields

EN 61000-4-3

10V/m; 80 - 1000MHz

Burst on control cables

EN 61000-4-4

1kV

Burst on mains and motor cables

EN 61000-4-4

2kV

Surge (phase-phase / phase-ground)

EN 61000-4-5

1kV / 2kV

Cable-led interference due to high
frequency fields

EN 61000-4-6

10V, 0.15 - 80MHz

Voltage fluctuations and drops

EN 61000-2-1

+10%, -15%; 90%

Voltage asymmetries and frequency
changes

EN 61000-2-4

3%; 2%

Wiring recommendations for mounting near to motor

7.5 Operation with FI circuit breakers

The motor starters can be operated with leakage current circuit breakers. The leakage current is less
than 20 mA

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