Danfoss VLT AutomationDrive FC 300 Design Manual page 40

3. Introduction to FC 300
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
3
motor and brake cables. Radio interference higher than 50 MHz (airborne) is especially generated
by the control electronics.
The following test results have been obtained using an application with a frequency converter
(with options if relevant), a screened control cable, a control box with potentiometer, as well
as a motor and a screened motor cable.
Setup
FC 301/FC 302 (H2)
0-3.7 kW 200-240 V
0-7.5 kW 380-480/500
V
FC 301 (H1)
0-3.7 kW 200-240 V
0-7.5 kW 380-480 V
FC 301 (H3)
0-1.5 kW 200-240 V
0-1.5 kW 380-480 V
FC 302 (H1)
0-3.7 kW 200-240 V
0-7.5 kW 380-500 V
FC 301/FC 302 (H2)
11-22 kW 380-480/500
V
FC 301 (H1)
11-22 kW 380-480 V
FC 302 (H1)
11-22 kW 380-500 V
FC 302 (HX)
0.75 - 7.5 kW
550 - 600 V
Table 3.1: EMC Test Results (Emission, Immunity)
HX, H1, H2 or H3 is defined in the type code pos. 16 - 17 for EMC filters
HX - No EMC filters build in the frequency converter (600 V units only)
H1 - Integrated EMC filter. Fulfil Class A1/B
H2 - No additional EMC filter. Fulfil Class A2
H3 - Integrated EMC filter. Fulfil class A1/B (Enclosure type A1 only)
40
NB!
When unscreened cables are used, some emission requirements are not complied
with, although the immunity requirements are observed.
Conducted emission
Industrial environment
EN 55011 EN 55011
Class A2 Class A1
5 m
5 m
75 m
75 m
50 m
50 m
150 m 150 m
150 m 150 m
25 m
75 m
150 m 150 m
No
MG.33.B9.02 - VLT
Radiated emission
Housing, Industrial en-
trades and vironment
light indus-
tries
EN 55011 EN 55011
Class B Class A1
No No No
No No No
50 m 10 m Yes
50 m 10 m Yes
25 m 2.5 m Yes
25 m 2.5 m Yes
50 m Yes
50 m Yes
No No No
50 m 10 m Yes
50 m Yes
No No No
® is a registered Danfoss trademark
FC 300 Design Guide
Housing, trades
and light indus-
tries
EN 55011 Class
B
No
No
No
No
No
No
No
No
No
No
No
No