Danfoss VLT CDS 803, Руководство пользователя

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1 Ground wire
2 Shield
3 AC mains supply
4 Drive
5 Shielded motor cable
6 Motor
C
S
Possible shunt parasitic capacitance paths (varies
with different installations)
I
1
Common-mode leakage current
I
2
Shielded motor cable
I
3
Safety ground (4
th
conductor in motor cables)
I
4
Unintended common-mode current
6.5.1 EMC Emission Test Results
The following test results have been obtained using a system with a drive, a shielded control cable, a control box with potentiome-
ter, and a shielded motor cable.
Table 17: EMC Emission Test Results
Conduct emission
Maximum shielded cable length [m (ft)]
Radiated emission
EN 55011 Class A Group 2
Industrial environ-
ment
Class A Group 1
Industrial environ-
ment
Class B
Housing, trades,
and light indus-
tries
Class A Group
2
Industrial envi-
ronment
Class A Group
1
Industrial envi-
ronment
Class B
Housing,
trades, and
light industries
EN/IEC
61800-3 Category C3
Second environ-
ment Industrial
Category C2
First environment
Home and office
Category C1
First environ-
ment Home and
office
Category C3
Second envi-
ronment Indus-
trial
Category C2
First environ-
ment Home
and office
Category C1
First environ-
ment Home
and office
External
RFI filter No Yes No Yes No Yes No Yes No Yes No Yes
H4 RFI filter (EN 55011 A1, EN/IEC61800-3 C2)
6.0– 10 kW
(8.0– 15
hp) – – 25 (82) 50 (164) – 20 (66) – – Yes Yes – No
H2 RFI filter (EN 55011 A2, EN/IEC 61800-3 C3)
18–30 kW
(25– 40
hp) 5 (16.4) – – – – – Yes – No – No –
6.5.2 Emission Requirements
According to the EMC product standard for AC drives, EN/IEC 61800-3:2004, the EMC requirements depend on the intended use of
the drive. Four categories are defined in the EMC product standard. The definitions of the 4 categories together with the require-
ments for mains supply voltage conducted emissions are given in
Table 18 .
AJ330233902305en-000201 / 130R0596 | 53 Danfoss A/S © 2021.05
Electrical Installation
Considerations
VLT® Compressor Drive CDS 803
Design Guide