Danfoss VLT AQUA Drive Design Manual page 33

VLT ® AQUA Drive Design Guide
In order to reduce the interference level from the entire system (unit + installation), make motor
and brake cables as short as possible. Avoid placing cables with a sensitive signal level alongside
motor and brake cables. Radio interference higher than 50 MHz (airborne) is especially generated
by the control electronics.
2.10.2. EMC Test Results (Emission, Immunity)
The following test results were obtained using a system with an adjustable frequency drive (with options, if relevant),
a shielded control cable, a control box with potentiometer, as well as a motor and motor-shielded cable.
RFI filter type
Set-up
H1
0.34-60 hp [0.25-45 kW]
0.34-125 hp [0.25-90 kW]
H2
0.34-4 hp [0.25-3.7 kW]
7.5-60 hp [5.5-45 kW]
0.34-10 hp [0.25-7.5 kW]
15-125 hp [11-90 kW]
H3
0.34-60 hp [0.25-45 kW]
0.34-125 hp [0.25-90 kW]
2.1: EMC Test Results (Emission, Immunity)
1) 15 hp [11 kW ]200 V, H1 and H2 performance is delivered in enclosure type B1.
15 hp [11 kW] 200 V, H3 performance is delivered in enclosure type B2.
2.10.3. Required Compliance Levels
Standard / environment
IEC 61000-6-3 (generic)
IEC 61000-6-4
EN 61800-3 (restricted)
EN 61800-3 (unrestricted)
EN 55011:
Class A1:
Class A2:
Class B1:
Conducted emission
Industrial environment
EN 55011 Class
A2
492 ft [150 m]
200-240 V
380-480 V 492 ft [150 m]
16 ft [5 m]
200-240 V
200-240 V 82 ft [25 m]
16 ft [5 m]
380-480 V
380-480 V 82 ft [25 m]
200-240 V 246 ft [75 m]
246 ft [75 m] 164 ft [50 m]
380-480 V
Housing, trades, and light indus-
tries
Conducted
Class B
Class A1
Class B
Threshold values and measuring methods for radio interference from industrial,
scientific and medical (ISM) high-frequency equipment.
Equipment used in a public supply network. Restricted distribution.
Equipment used in a public supply network.
Equipment used in areas with a public supply network (residential, commerce,
and light industries). Unrestricted distribution.
MG.20.N2.22 - VLT ® is a registered Danfoss trademark.
2. Introduction to the VLT AQUA Drive
Housing, Industrial envi-
trades, and ronment
light industries
EN 55011 EN 55011 Class EN 55011 Class
Class A1 B
492 ft [150
164 ft [50 m]
m] 1)
492 ft [150
m] 164 ft [50 m]
No No
No No
No No
No No
164 ft [50 m]
1) 33 ft [10 m]
33 ft [10 m]
Industrial environment
Radiated Conducted
Class B
Class A1
Class A1 Class A1
Class B Class A2
Radiated emission
Housing, trades, and
light industries
EN 55011 Class B
A1
Yes No
Yes No
No No
No No
No No
No No
Yes No
Yes No
Radiated
Class A1
Class A1
Class A2
2
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