Emc Categories Description - WEG CFW-10 EASYDRIVE User Manual

CHAPTER 3 - INSTALLATION AND CONNECTION
3.3.2 EMC Categories
Description
Category I
EMC phenomenon
Emission:
Conducted emissions (mains terminal
disturbance voltage - freq band
150kHz to 30MHz)
Radiated emissions (electromagnetic
radiation disturbance - freq band
30MHz to 1000MHz)
Immunity:
Electrostatic discharge (ESD)
Fast transient-burst
Conducted radio-frequency
common mode
Surge
Radio-frequency electromagnetic field
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5) The cable shield (motor and control) shall be solidly
connected to the common back plate, using metallic
brackets.
6) Grounding shall be performed as recommended in this
user's guide.
7) Use short and thick cables to ground the external filter or
inverter. When an external filter is used, ground only the filter
(input) - the inverter ground connection is performed through
the metallic back plate.
8) Ground the back plate using a braid, as short as possible.
Flat conductors (e.g. braids or brackets) have lower
impedance at high frequencies.
9) Use cable glands whenever possible.
There are two EMC categories: Category I for industrial
applications and Category II for residential applications, as
described below.
Basic standard
for test method
IEC/EN61800-3
First environment (*1), restricted distribution (*4,5) - Class
A
IEC/EN61800-3
Second environment (*2), unrestricted distribution (*3)
IEC 61000-4-2 6kV contact discharge
4kV/2.5kHz (capacitive clamp) input cable; 2kV/5kHz
IEC 61000-4-4
control cables; 2kV/5kHz (capacitive clamp) motor cable;
1kV/5kHz (capacitive clamp) external keypad cable
IEC 61000-4-6
0.15 to 80MHz; 10V;
80% AM (1kHz) - motor control and remote Keypad cable
IEC 61000-4-5
1.2/50μs, 8/20μs;
1kV coupling line to line;
2kV coupling line to earth
IEC 61000-4-3
80 to 1000MHz; 10V/m; 80% AM (1kHz)
Level